/* 基础与变量 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'PingFang SC', 'Inter', sans-serif; line-height: 1.7; color: #E0E0E0; background: #0A0A0A; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 1.5rem; }
a { text-decoration: none; color: inherit; }

/* Header */
.header { background: rgba(10,10,10,0.9); backdrop-filter: blur(10px); position: fixed; width: 100%; top: 0; z-index: 1000; }
.header .container { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; }
.logo h1 a { color: #00BFFF; font-size: 1.8rem; font-weight: 600; }
.tagline { font-size: 0.9rem; color: #888; }
.nav ul { display: flex; list-style: none; gap: 2.5rem; }
.nav ul li a { padding: 0.5rem 1rem; border-radius: 5px; transition: color 0.3s; }
.nav ul li a.active, .nav ul li a:hover { color: #00BFFF; }
.lang-toggle button { background: #00BFFF; color: #000; border: none; padding: 0.5rem 1.2rem; border-radius: 20px; cursor: pointer; font-size: 0.9rem; }
.menu-toggle { display: none; color: #FFF; font-size: 1.5rem; cursor: pointer; }

/* Hero */
.hero { position: relative; height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to right, rgba(0,191,255,0.3), rgba(0,0,0,0.7)); }
.hero-content { position: relative; z-index: 2; padding: 0 2rem; max-width: 600px; }
.hero-content h2 { font-size: 4rem; color: #FFF; margin-bottom: 1rem; }
.hero-content p { font-size: 1.3rem; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; }
.btn { padding: 1rem 2rem; border-radius: 30px; font-weight: 600; transition: all 0.3s; }
.btn.primary { background: #00BFFF; color: #000; }
.btn.secondary { background: transparent; border: 2px solid #00BFFF; color: #FFF; }
.btn:hover { transform: scale(1.05); }
.hero-bg { position: absolute; top: 0; right: 0; width: 60%; height: 100%; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }

/* Sections */
.section { padding: 6rem 0; }
.section h3 { text-align: center; font-size: 3rem; margin-bottom: 4rem; color: #00BFFF; }
.shots-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 2rem; }
.shot-item { position: relative; height: 500px; overflow: hidden; border-radius: 15px; }
.shot-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.shot-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(to top, rgba(0,0,0,0.8), transparent); color: #FFF; padding: 2rem; transform: translateY(100%); transition: transform 0.3s; }
.shot-item:hover .shot-overlay { transform: translateY(0); }
.shot-item:hover img { transform: scale(1.1); }
.shot-overlay h4 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.view-more { color: #00BFFF; font-weight: 600; }

/* Community */
.community { background: #111; text-align: center; }
.community p { font-size: 1.2rem; margin-bottom: 2rem; max-width: 800px; margin-left: auto; margin-right: auto; }

/* Footer */
.footer { background: #000; color: #888; text-align: center; padding: 3rem 0; }
.footer-links { margin: 1rem 0; }
.footer-links a { margin: 0 1rem; color: #00BFFF; }
.social a { margin: 0 1.5rem; color: #888; }

/* 响应式 */
@media (max-width: 768px) {
    .nav ul { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: rgba(10,10,10,0.95); flex-direction: column; padding: 1rem; }
    .menu-toggle { display: block; }
    .hero-content h2 { font-size: 2.5rem; }
    .hero-actions { flex-direction: column; }
    .shots-grid { grid-template-columns: 1fr; }
}
/* Gallery 特定样式 */
.gallery-hero .filters { display: flex; gap: 1rem; margin-top: 1rem; flex-wrap: wrap; }
.filters select, .filters input { padding: 0.5rem; border-radius: 5px; border: 1px solid #00BFFF; }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.gallery-item { position: relative; height: 300px; overflow: hidden; border-radius: 10px; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.item-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: rgba(0,0,0,0.7); color: #FFF; padding: 1rem; transform: translateY(100%); transition: transform 0.3s; }
.gallery-item:hover .item-overlay { transform: translateY(0); }
.gallery-item:hover img { transform: scale(1.05); }
.view-btn { background: #00BFFF; color: #000; border: none; padding: 0.5rem 1rem; border-radius: 20px; cursor: pointer; }

/* Modal */
.modal { display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.9); }
.modal-content { position: relative; margin: auto; padding: 0; width: 90%; max-width: 800px; top: 50%; transform: translateY(-50%); }
.modal-content img { width: 100%; height: auto; display: block; }
.close { position: absolute; top: -40px; right: 0; color: #FFF; font-size: 2rem; cursor: pointer; }
.caption { color: #FFF; text-align: center; padding: 1rem; }

@media (max-width: 768px) {
    .gallery-grid { grid-template-columns: 1fr; }
    .filters { flex-direction: column; }
}
/* 视差滚动（JS增强） */
.parallax { background-attachment: fixed; }
/* Upload 特定样式 */
.upload-hero .upload-stats { font-size: 0.9rem; color: #888; }
.drop-zone { border: 2px dashed #00BFFF; border-radius: 10px; padding: 3rem; text-align: center; cursor: pointer; transition: background 0.3s; }
.drop-zone.drag-over { background: rgba(0,191,255,0.1); }
.preview-container { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1rem; }
.preview-item { position: relative; }
.preview-item img { width: 150px; height: 150px; object-fit: cover; border-radius: 5px; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: #00BFFF; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 0.8rem; border: 1px solid #333; border-radius: 5px; background: #111; color: #E0E0E0; }
.status { color: #00BFFF; text-align: center; margin-top: 1rem; }

@media (max-width: 768px) {
    .preview-container { justify-content: center; }
}
/* About 特定样式 */
.about-hero .hero-content { max-width: 700px; }
.mission { background: #111; }
.mission-stats { display: flex; justify-content: space-around; margin-top: 2rem; }
.stat-item h4 { color: #00BFFF; font-size: 2rem; }
.timeline-container { position: relative; }
.timeline-item { position: relative; margin: 2rem 0; padding-left: 2rem; }
.timeline-dot { position: absolute; left: 0; top: 1rem; width: 12px; height: 12px; background: #00BFFF; border-radius: 50%; }
.timeline-item.visible .timeline-content { opacity: 1; transform: translateX(0); }
.timeline-content { opacity: 0; transform: translateX(-20px); transition: all 0.5s; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.team-member { text-align: center; }
.team-member img { width: 100%; height: 200px; object-fit: cover; border-radius: 10px; }
.team-member h4 { color: #00BFFF; margin: 1rem 0 0.5rem; }

@media (max-width: 768px) {
    .mission-stats { flex-direction: column; }
    .team-grid { grid-template-columns: 1fr; }
}
/* Contact 特定样式 */
.contact-hero .contact-info { font-size: 1rem; color: #FFF; margin-top: 1rem; }
.contact-form-section { background: #111; padding: 4rem 0; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: #00BFFF; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.8rem; border: 1px solid #333; border-radius: 5px; background: #1a1a1a; color: #E0E0E0; }
.status { color: #00BFFF; text-align: center; margin-top: 1rem; }
.map-container { height: 400px; border-radius: 10px; margin-top: 1rem; }

@media (max-width: 768px) {
    .map-container { height: 300px; }
}