/* =====================================
   永恒世界 Eternum - 深色主题样式
   ===================================== */

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #FFD700;
    --color-secondary: #1E3A8A;
    --color-accent: #60A5FA;
    --color-dark: #0A0E27;
    --color-darker: #050816;
    --color-light: #E5E7EB;
    --color-gray: #6B7280;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-darker);
    color: var(--color-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* =====================================
   导航栏
   ===================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.navbar {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

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

.nav-menu a {
    color: var(--color-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

.btn-nav {
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), #FFA500);
    color: var(--color-darker);
    border-radius: 25px;
    font-weight: 600;
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 215, 0, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    transition: var(--transition);
}

/* =====================================
   英雄区域
   ===================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 80px 20px 20px;
}

.hero-background {
    position: absolute;
    inset: 0;
    background-image: url('../images/cover2.webp');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    animation: pulse 10s ease-in-out infinite;
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.45), rgba(5, 8, 22, 0.35));
}

.hero-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, transparent 40%, rgba(10, 14, 39, 0.3) 100%);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 100;
    text-align: center;
    max-width: 900px;
    animation: fadeInUp 1s ease;
}

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

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: 25px;
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
    }
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.title-main {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.title-sub {
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: 0.5rem;
    color: var(--color-accent);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-light);
    margin-bottom: 0.5rem;
}

.hero-description-sub {
    font-size: 1rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #FFA500);
    color: var(--color-darker);
    box-shadow: 0 5px 25px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(255, 215, 0, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-light);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gray);
    font-size: 0.9rem;
    animation: bounce 2s infinite;
    z-index: 100;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* =====================================
   通用区块样式
   ===================================== */
section {
    padding: 5rem 0;
}

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

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 25px;
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-light);
}

/* =====================================
   关于区域
   ===================================== */
.about {
    background: var(--color-dark);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), transparent);
    pointer-events: none;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--color-gray);
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-light);
}

.highlight-item i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

/* =====================================
   特性区域
   ===================================== */
.features {
    background: var(--color-darker);
}

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

.feature-card {
    padding: 2rem;
    background: var(--color-dark);
    border-radius: 15px;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 40px rgba(255, 215, 0, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), #FFA500);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--color-darker);
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--color-light);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--color-gray);
    line-height: 1.7;
}

/* =====================================
   画廊区域
   ===================================== */
.gallery {
    background: var(--color-dark);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/9;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-overlay i {
    font-size: 2rem;
    color: var(--color-primary);
}

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

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

/* =====================================
   攻略区域
   ===================================== */
.guide {
    background: var(--color-darker);
    padding: 80px 0;
}

.guide-content {
    width: 100%;
}

.guide-content p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.guide-content h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.guide-links {
    margin-top: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 15px;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.guide-links h3 {
    margin-top: 0;
}

.guide-links ul {
    list-style: none;
    padding: 0;
}

.guide-links li {
    margin-bottom: 1rem;
}

.guide-links a {
    color: var(--color-light);
    text-decoration: none;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: var(--transition);
}

.guide-links a i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

.guide-links a:hover {
    background: rgba(255, 215, 0, 0.1);
    transform: translateX(10px);
}

/* =====================================
   资讯区域
   ===================================== */
.news {
    background: var(--color-dark);
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
}

.news-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), #FFA500);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.news-icon i {
    font-size: 1.8rem;
    color: var(--color-darker);
}

.news-card h3 {
    color: var(--color-light);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.news-card p {
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.news-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.news-link:hover {
    gap: 1rem;
}

.news-link i {
    transition: var(--transition);
}

/* =====================================
   下载区域
   ===================================== */
.download {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-dark));
}

.download-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    text-align: center;
}

.download-header h2 {
    font-size: 2rem;
    color: var(--color-light);
    margin-bottom: 0.5rem;
}

.download-header p {
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.download-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-light);
}

.info-item i {
    color: var(--color-primary);
}

.btn-download {
    padding: 1.2rem 3rem;
    background: linear-gradient(135deg, var(--color-primary), #FFA500);
    color: var(--color-darker);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    box-shadow: 0 5px 30px rgba(255, 215, 0, 0.4);
    font-family: inherit;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(255, 215, 0, 0.6);
}

.download-note {
    margin-top: 1rem;
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* =====================================
   页脚
   ===================================== */
.footer {
    background: var(--color-darker);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(255, 215, 0, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-brand img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
}

.footer-brand h3 {
    color: var(--color-primary);
    font-size: 1.3rem;
}

.footer-brand p {
    color: var(--color-gray);
}

.footer-links h4, .footer-info h4 {
    color: var(--color-light);
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: var(--color-gray);
    text-decoration: none;
    display: block;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.footer-info p {
    color: var(--color-gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-gray);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* =====================================
   图片查看器
   ===================================== */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 90%;
    max-height: 90vh;
    border-radius: 10px;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 3rem;
    color: white;
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--color-primary);
    transform: scale(1.2);
}

/* =====================================
   响应式设计
   ===================================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--color-dark);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .title-main {
        font-size: 2.5rem;
    }
    
    .title-sub {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .download-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* 小屏幕手机端 */
@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}


.protocol-news-list{max-width:1100px;margin:40px auto;padding:0 20px}.protocol-news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.protocol-news-card{padding:22px;border:1px solid rgba(127,127,127,.25);border-radius:10px;background:rgba(255,255,255,.06);line-height:1.7}.protocol-news-card h2,.protocol-news-card h3{margin:0 0 10px}.protocol-news-card p{margin:10px 0}.protocol-detail{max-width:960px;margin:40px auto;padding:0 20px}.protocol-detail-content{padding:30px;border-radius:12px;line-height:1.9;overflow-wrap:anywhere;background:rgba(255,255,255,.06)}.protocol-detail-content p{margin:0 0 18px}.protocol-detail-content h2{margin:28px 0 14px}.protocol-back{display:inline-block;margin:20px 0;font-weight:600}@media(max-width:768px){.protocol-news-grid{grid-template-columns:1fr}.protocol-detail-content{padding:20px}}