/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #2563eb;
    text-decoration: none;
}

.logo-image {
    width: 40px;
    height: 40px;
    margin-right: 12px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-menu a:hover {
    color: #2563eb;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding-top: 70px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
    margin-left: 100px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
    margin-left: 100px;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: #fff;
    color: #2563eb;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.4s both;
    margin-left: 120px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease 0.6s both;
}

.hero-image i {
    font-size: 15rem;
    opacity: 0.8;
}

/* 下载区域 */
.downloads {
    padding: 100px 0;
    background: #f8fafc;
}

.downloads h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #1e293b;
}

.section-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 1.1rem;
    margin-bottom: 60px;
}

.mirrors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}


.mirror-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.mirror-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
}

.mirror-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.mirror-icon {
    text-align: center;
    margin-bottom: 20px;
}

.mirror-icon i {
    font-size: 3rem;
    color: #2563eb;
}

.mirror-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #1e293b;
    text-align: center;
}

.mirror-card p {
    color: #64748b;
    text-align: center;
    margin-bottom: 20px;
}

.mirror-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
    padding: 15px;
    background: #f1f5f9;
    border-radius: 10px;
}

.mirror-info span {
    font-weight: 500;
    color: #475569;
}

.size {
    color: #059669 !important;
}

.version {
    color: #dc2626 !important;
}

.download-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.download-btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 120px;
    width: 100%;
    box-sizing: border-box;
}

.download-btn.primary {
    background: #2563eb;
    color: white;
}

.download-btn.primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.download-btn.secondary {
    background: #f1f5f9;
    color: #475569;
}

.download-btn.secondary:hover {
    background: #e2e8f0;
    transform: translateY(-2px);
}

/* 确保工具卡片中的按钮大小一致 */
.tool-card .download-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tool-card .download-btn {
    width: 100%;
    flex: none;
}

/* 刷机工具区域 */
.tools {
    padding: 100px 0;
    background: white;
}

.tools h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #1e293b;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.tool-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 2px solid #f1f5f9;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #059669, #10b981);
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: #059669;
}

.tool-icon {
    text-align: center;
    margin-bottom: 20px;
}

.tool-icon i {
    font-size: 3rem;
    color: #059669;
}

.tool-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #1e293b;
    text-align: center;
}

.tool-card p {
    color: #64748b;
    text-align: center;
    margin-bottom: 20px;
}

.tool-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding: 15px;
    background: #f0fdf4;
    border-radius: 10px;
}

.tool-info span {
    font-weight: 500;
    color: #475569;
}

.tool-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.feature {
    background: #e0f2fe;
    color: #0369a1;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 关于区域 */
.about {
    padding: 100px 0;
    background: white;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #1e293b;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
}

.about-text li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: #475569;
}

.about-text li i {
    color: #059669;
    font-size: 1.2rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stat {
    text-align: center;
    padding: 30px 20px;
    background: #f8fafc;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.stat:hover {
    transform: translateY(-5px);
}

.stat h3 {
    font-size: 2.5rem;
    color: #2563eb;
    margin-bottom: 10px;
}

.stat p {
    color: #64748b;
    font-weight: 500;
}

/* 联系区域 */
.contact {
    padding: 100px 0;
    background: #f8fafc;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #1e293b;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
}

.contact-item i {
    font-size: 2rem;
    color: #2563eb;
}

.contact-item h4 {
    color: #1e293b;
    margin-bottom: 5px;
}

.contact-item p {
    color: #64748b;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* 管理后台样式 */
.admin-body {
    background: #f1f5f9;
    min-height: 100vh;
    padding: 30px 15px;
}

.admin-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.admin-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.admin-header h1 {
    font-size: 2rem;
    color: #1e293b;
}

.admin-header p {
    color: #64748b;
}

.admin-header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-card {
    background: white;
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 15px 40px rgba(15, 23, 42, 0.08);
}

.admin-card h2 {
    font-size: 1.25rem;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.admin-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.badge {
    background: #dbeafe;
    color: #1d4ed8;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.9rem;
}

.admin-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    align-items: flex-end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 600;
    color: #475569;
}

.form-group input {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid #cbd5f5;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group select {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid #cbd5f5;
    font-size: 1rem;
    transition: border-color 0.2s ease;
    background: #fff;
    appearance: none;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.admin-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: none;
    border-radius: 10px;
    padding: 10px 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.2s ease;
    text-decoration: none;
    justify-content: center;
}

.admin-btn.primary {
    background: #2563eb;
    color: white;
}

.admin-btn.secondary {
    background: #e2e8f0;
    color: #1e293b;
}

.admin-btn.danger {
    background: #ef4444;
    color: white;
}

.admin-btn.small {
    padding: 8px 12px;
    font-size: 0.9rem;
    white-space: nowrap;
}

.admin-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.admin-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

.category-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.category-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid #e2e8f0;
    background: #fff;
    color: #475569;
    padding: 8px 14px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.category-filter-btn .filter-count {
    background: #e2e8f0;
    color: #1e293b;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 0.8rem;
}

.category-filter-btn.active {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}

.category-filter-btn.active .filter-count {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
}

.category-x86 {
    background: linear-gradient(120deg, #2563eb, #3b82f6);
}

.category-box {
    background: linear-gradient(120deg, #0ea5e9, #06b6d4);
}

.category-tool {
    background: linear-gradient(120deg, #059669, #10b981);
}

.category-other {
    background: linear-gradient(120deg, #a855f7, #ec4899);
}

.category-all {
    background: linear-gradient(120deg, #6b7280, #94a3b8);
}

.category-cell {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    min-width: 180px;
}

.category-select {
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid #cbd5f5;
    background: #fff;
    font-size: 0.9rem;
}

.category-select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 14px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.admin-table th {
    background: #f8fafc;
    color: #475569;
    font-weight: 600;
}

.table-wrapper {
    overflow-x: auto;
}

.table-placeholder {
    text-align: center;
    padding: 40px 0;
    color: #94a3b8;
}

.table-input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid #cbd5f5;
    font-size: 0.95rem;
}

.table-actions {
    display: flex;
    gap: 10px;
    flex-wrap: nowrap;
    justify-content: flex-end;
    align-items: center;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: #94a3b8;
    background: #ffffff;
    border-radius: 16px;
    border: 1px dashed #cbd5f5;
}

.status-message {
    display: none;
    padding: 14px 18px;
    border-radius: 10px;
    font-weight: 500;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
}

.status-message.success {
    background: #dcfce7;
    color: #166534;
}

.status-message.error {
    background: #fee2e2;
    color: #991b1b;
}

.status-message.info {
    background: #dbeafe;
    color: #1e40af;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 0;
    padding: 30px;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: modalSlideIn 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 15px;
}

.close:hover {
    color: #000;
}

.progress-container {
    margin-top: 20px;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background: #e2e8f0;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 5px;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
}

#progressText {
    text-align: center;
    color: #64748b;
    font-weight: 500;
}

/* 涟漪效果 */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

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

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

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 20px 50px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-image i {
        font-size: 8rem;
    }
    
    .mirrors-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .download-options {
        flex-direction: column;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .mirror-card {
        padding: 20px;
    }
    
    .downloads h2,
    .about h2,
    .contact h2 {
        font-size: 2rem;
    }
}

/* 登录页样式 */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 3rem;
    color: #2563eb;
    margin-bottom: 15px;
}

.login-header h1 {
    font-size: 1.8rem;
    color: #1e293b;
    margin-bottom: 10px;
}

.login-header p {
    color: #64748b;
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.login-form .form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: #475569;
    font-weight: 500;
}

.login-form .form-group label i {
    color: #2563eb;
}

.login-error {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: 8px;
    border-left: 4px solid #dc2626;
    margin-top: 15px;
    font-size: 0.9rem;
}

.login-footer {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.back-link {
    color: #64748b;
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: #2563eb;
}

.full-width {
    width: 100%;
}