/* ===== Apple Style CSS - 高端简约毛玻璃风格 ===== */

:root {
    --apple-blue: #007AFF;
    --apple-gray: #8E8E93;
    --apple-light-gray: #F2F2F7;
    --apple-dark: #1C1C1E;
    --apple-success: #34C759;
    --apple-warning: #FF9500;
    --apple-danger: #FF3B30;
    --apple-info: #5AC8FA;
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --border-radius-sm: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--apple-dark);
    line-height: 1.6;
    letter-spacing: -0.01em;
}

/* 毛玻璃容器 */
.glass-container {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    margin: 2rem auto;
    max-width: 1200px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-container:hover {
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: none;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--apple-dark) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 1rem !important;
}

.nav-link:hover {
    background: rgba(0, 122, 255, 0.1);
    color: var(--apple-blue) !important;
}

/* 移动端汉堡菜单按钮样式 */
.navbar-toggler {
    border: 2px solid rgba(102, 126, 234, 0.5);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 0.75rem;
    transition: all 0.3s ease;
}

.navbar-toggler:hover {
    border-color: rgba(102, 126, 234, 0.8);
    background: rgba(102, 126, 234, 0.1);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
    border-color: rgba(102, 126, 234, 0.8);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(102, 126, 234, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5em;
    height: 1.5em;
}

/* 移动端折叠菜单展开时的样式 */
@media (max-width: 575.98px) {
    .navbar-collapse {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-radius: var(--border-radius);
        margin-top: 1rem;
        padding: 1rem;
        box-shadow: var(--shadow-md);
    }
    
    .navbar-nav .nav-item {
        margin: 0.25rem 0;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem !important;
        border-radius: var(--border-radius-sm);
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}

/* 卡片样式 */
.card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
    padding: 1.25rem;
}

.card-body {
    padding: 1.5rem;
}

/* 按钮样式 */
.btn {
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: -0.01em;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #5568d3 0%, #653a8b 100%);
}

.btn-outline-primary {
    border: 2px solid #667eea;
    color: #667eea;
    background: rgba(255, 255, 255, 0.5);
}

.btn-outline-primary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: var(--apple-success);
}

.btn-success:hover {
    background: #2fb04e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 199, 89, 0.3);
}

/* 警告框样式 */
.alert {
    border-radius: var(--border-radius);
    border: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.25rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.alert-success {
    background: rgba(52, 199, 89, 0.15);
    color: #1e7b34;
}

.alert-info {
    background: rgba(90, 200, 250, 0.15);
    color: #0c5460;
}

.alert-warning {
    background: rgba(255, 149, 0, 0.15);
    color: #8a5d00;
}

.alert-danger {
    background: rgba(255, 59, 48, 0.15);
    color: #9e1b0e;
}

/* 文件上传区域 */
.upload-area {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px dashed rgba(102, 126, 234, 0.4);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: rgba(102, 126, 234, 0.8);
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.02);
}

.upload-area.drag-over {
    border-color: var(--apple-blue);
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.05);
}

/* 上传图标文字 */
.upload-icon-text {
    font-size: 3rem;
    font-weight: 700;
    color: var(--apple-blue);
    letter-spacing: 0.1em;
    opacity: 0.3;
}

/* 输入框样式 */
.form-control {
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.875rem 1rem;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    background: white;
}

/* 徽章样式 */
.badge {
    border-radius: 8px;
    padding: 0.5rem 0.875rem;
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: -0.01em;
}

.badge.bg-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.badge.bg-success {
    background: var(--apple-success) !important;
}

.badge.bg-danger {
    background: var(--apple-danger) !important;
}

.badge.bg-warning {
    background: var(--apple-warning) !important;
    color: white !important;
}

.badge.bg-info {
    background: var(--apple-info) !important;
}

/* 折叠按钮 */
.btn[data-bs-toggle="collapse"] {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--apple-dark);
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn[data-bs-toggle="collapse"]:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--apple-blue);
    color: var(--apple-blue);
}

/* 折叠内容 */
.collapse .card-body {
    background: rgba(242, 242, 247, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* 表格样式 */
.table {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead {
    background: rgba(102, 126, 234, 0.1);
    font-weight: 600;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* 页脚 */
footer {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
    margin-top: 4rem;
    color: var(--apple-gray);
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--apple-dark);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

/* 功能数字 */
.feature-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    opacity: 0.8;
}

/* 统计数值 */
.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--apple-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* 步骤数字 */
.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 0.5rem;
}

/* 上传区域内的步骤 */
.upload-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.step-number-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .upload-steps {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
}

/* 信息行 */
.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--apple-gray);
    font-weight: 500;
    font-size: 0.95rem;
}

.info-value {
    font-weight: 600;
    color: var(--apple-dark);
    font-size: 1rem;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 加载动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .glass-container {
        margin: 1rem;
        padding: 1.5rem;
        border-radius: var(--border-radius);
    }

    h1 {
        font-size: 2rem;
    }

    .upload-area {
        padding: 2rem 1rem;
    }

    .upload-icon {
        font-size: 3rem;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.3);
    border-radius: 10px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.5);
}

/* 特殊效果 */
.glow-on-hover {
    position: relative;
    z-index: 1;
}

.glow-on-hover:hover::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: inherit;
    z-index: -1;
    filter: blur(10px);
    opacity: 0.7;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

/* 统计卡片 */
.stat-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--apple-gray);
    font-weight: 500;
    font-size: 0.95rem;
}

/* 排行榜样式 */
.ranking-view {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.rank-1 {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.1) 0%, transparent 100%) !important;
}

.rank-2 {
    background: linear-gradient(90deg, rgba(192, 192, 192, 0.1) 0%, transparent 100%) !important;
}

.rank-3 {
    background: linear-gradient(90deg, rgba(205, 127, 50, 0.1) 0%, transparent 100%) !important;
}

.btn-group .btn {
    border-radius: var(--border-radius) !important;
    margin: 0 0.25rem;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-group .btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    border-color: rgba(102, 126, 234, 0.3);
    color: var(--apple-blue);
}

.btn-outline-primary:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--apple-blue);
}

.badge-lg {
    padding: 0.5rem 1rem;
    font-size: 1rem;
}