/* ============================================
   iOS 风格主题 - 极限云盘
   半透明毛玻璃卡片 + 流畅动画
   ============================================ */

:root {
    /* iOS 系统色 */
    --ios-blue: #007AFF;
    --ios-green: #34C759;
    --ios-red: #FF3B30;
    --ios-orange: #FF9500;
    --ios-purple: #AF52DE;
    --ios-pink: #FF2D55;
    --ios-teal: #5AC8FA;
    --ios-gray: #8E8E93;
    --ios-gray-light: #C7C7CC;
    
    /* 背景与文字 */
    --ios-bg: #F2F2F7;
    --ios-bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --ios-text: #1C1C1E;
    --ios-text-secondary: #6C6C70;
    --ios-text-tertiary: #8E8E93;
    
    /* 卡片 */
    --ios-card-bg: rgba(255, 255, 255, 0.72);
    --ios-card-border: rgba(255, 255, 255, 0.5);
    --ios-card-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --ios-card-shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.12);
    
    /* 圆角 */
    --ios-radius-sm: 12px;
    --ios-radius: 16px;
    --ios-radius-lg: 24px;
    --ios-radius-xl: 32px;
    
    /* 动画 */
    --ios-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ios-ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ios-duration: 0.3s;
    --ios-duration-slow: 0.5s;
}

/* ========== 基础重置 ========== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--ios-text);
    background: var(--ios-bg-gradient);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    z-index: -1;
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(1deg); }
    66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 动画工具类 */
.animate-fadeInUp {
    animation: fadeInUp var(--ios-duration-slow) var(--ios-ease) both;
}

.animate-fadeInDown {
    animation: fadeInDown var(--ios-duration-slow) var(--ios-ease) both;
}

.animate-scaleIn {
    animation: scaleIn var(--ios-duration) var(--ios-ease) both;
}

.animate-slideInRight {
    animation: slideInRight var(--ios-duration-slow) var(--ios-ease) both;
}

.animate-slideInLeft {
    animation: slideInLeft var(--ios-duration-slow) var(--ios-ease) both;
}

.animate-bounceIn {
    animation: bounceIn 0.6s var(--ios-ease-bounce) both;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* 延迟动画 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ========== 毛玻璃卡片 ========== */
.ios-card {
    background: var(--ios-card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--ios-card-border);
    border-radius: var(--ios-radius-lg);
    box-shadow: var(--ios-card-shadow);
    padding: 28px;
    transition: all var(--ios-duration) var(--ios-ease);
    position: relative;
    overflow: hidden;
}

.ios-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
}

.ios-card:hover {
    box-shadow: var(--ios-card-shadow-hover);
    transform: translateY(-2px);
}

.ios-card-compact {
    padding: 20px;
}

.ios-card-flat {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* ========== 导航栏 ========== */
.ios-navbar {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0 20px;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.ios-navbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    text-decoration: none;
    color: var(--ios-text);
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-navbar-logo:hover {
    transform: scale(1.02);
}

.ios-navbar-logo i {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--ios-blue), var(--ios-purple));
    color: #fff;
    border-radius: 10px;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.ios-navbar-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ios-navbar-links a,
.ios-navbar-links button {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ios-text-secondary);
    text-decoration: none;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--ios-duration) var(--ios-ease);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ios-navbar-links a:hover,
.ios-navbar-links button:hover {
    background: rgba(0, 122, 255, 0.1);
    color: var(--ios-blue);
    transform: translateY(-1px);
}

.ios-navbar-links a:active,
.ios-navbar-links button:active {
    transform: scale(0.96);
}

/* ========== 按钮 ========== */
.ios-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--ios-radius);
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--ios-duration) var(--ios-ease);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}

.ios-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ios-btn:active::after {
    width: 300px;
    height: 300px;
}

.ios-btn:active {
    transform: scale(0.96);
}

.ios-btn-primary {
    background: linear-gradient(135deg, var(--ios-blue), #0056CC);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.35);
}

.ios-btn-primary:hover {
    box-shadow: 0 6px 24px rgba(0, 122, 255, 0.45);
    transform: translateY(-2px);
}

.ios-btn-success {
    background: linear-gradient(135deg, var(--ios-green), #248A3D);
    color: #fff;
    box-shadow: 0 4px 16px rgba(52, 199, 89, 0.35);
}

.ios-btn-success:hover {
    box-shadow: 0 6px 24px rgba(52, 199, 89, 0.45);
    transform: translateY(-2px);
}

.ios-btn-danger {
    background: linear-gradient(135deg, var(--ios-red), #D70015);
    color: #fff;
    box-shadow: 0 4px 16px rgba(255, 59, 48, 0.35);
}

.ios-btn-danger:hover {
    box-shadow: 0 6px 24px rgba(255, 59, 48, 0.45);
    transform: translateY(-2px);
}

.ios-btn-outline {
    background: rgba(255, 255, 255, 0.6);
    color: var(--ios-text);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ios-btn-outline:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--ios-blue);
    color: var(--ios-blue);
    transform: translateY(-2px);
}

.ios-btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: var(--ios-radius-sm);
}

.ios-btn-xs {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 10px;
}

.ios-btn-lg {
    padding: 16px 32px;
    font-size: 17px;
    border-radius: var(--ios-radius-lg);
}

.ios-btn-block {
    width: 100%;
}

/* ========== 表单 ========== */
.ios-form-group {
    margin-bottom: 20px;
}

.ios-form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--ios-text);
}

.ios-input-wrap {
    position: relative;
}

.ios-input-wrap i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ios-text-tertiary);
    font-size: 16px;
    transition: all var(--ios-duration) var(--ios-ease);
    z-index: 1;
}

.ios-input {
    width: 100%;
    padding: 14px 16px 14px 46px;
    border: 1.5px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--ios-radius);
    background: rgba(255, 255, 255, 0.8);
    color: var(--ios-text);
    font-size: 15px;
    transition: all var(--ios-duration) var(--ios-ease);
    outline: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ios-input:focus {
    border-color: var(--ios-blue);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.12);
    background: #fff;
}

.ios-input:focus + i,
.ios-input-wrap:focus-within i {
    color: var(--ios-blue);
}

.ios-input::placeholder {
    color: var(--ios-text-tertiary);
}

.ios-input-no-icon {
    padding-left: 16px;
}

/* ========== 提示消息 ========== */
.ios-alert {
    border-radius: var(--ios-radius);
    padding: 14px 18px;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: slideInDown var(--ios-duration) var(--ios-ease);
}

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

.ios-alert-info {
    background: rgba(0, 122, 255, 0.1);
    border: 1px solid rgba(0, 122, 255, 0.2);
    color: var(--ios-blue);
}

.ios-alert-success {
    background: rgba(52, 199, 89, 0.1);
    border: 1px solid rgba(52, 199, 89, 0.2);
    color: var(--ios-green);
}

.ios-alert-error {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.2);
    color: var(--ios-red);
}

.ios-alert-warning {
    background: rgba(255, 149, 0, 0.1);
    border: 1px solid rgba(255, 149, 0, 0.2);
    color: var(--ios-orange);
}

/* ========== 统计卡片 ========== */
.ios-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.ios-stat-card {
    background: var(--ios-card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--ios-card-border);
    border-radius: var(--ios-radius-lg);
    padding: 24px 20px;
    text-align: center;
    box-shadow: var(--ios-card-shadow);
    transition: all var(--ios-duration) var(--ios-ease);
    animation: fadeInUp var(--ios-duration-slow) var(--ios-ease) both;
}

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

.ios-stat-icon {
    font-size: 32px;
    margin-bottom: 12px;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.ios-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--ios-text);
    line-height: 1.2;
    margin-bottom: 4px;
}

.ios-stat-label {
    font-size: 13px;
    color: var(--ios-text-secondary);
    font-weight: 500;
}

/* ========== 表格 ========== */
.ios-table-wrapper {
    overflow-x: auto;
    border-radius: var(--ios-radius);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ios-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.ios-table th {
    text-align: left;
    padding: 14px 16px;
    font-weight: 600;
    color: var(--ios-text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    background: rgba(255, 255, 255, 0.5);
}

.ios-table td {
    padding: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    color: var(--ios-text);
}

.ios-table tr {
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-table tr:hover td {
    background: rgba(0, 122, 255, 0.04);
}

/* ========== 标签/徽章 ========== */
.ios-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-tag-success {
    background: rgba(52, 199, 89, 0.15);
    color: var(--ios-green);
}

.ios-tag-warning {
    background: rgba(255, 149, 0, 0.15);
    color: var(--ios-orange);
}

.ios-tag-error {
    background: rgba(255, 59, 48, 0.15);
    color: var(--ios-red);
}

.ios-tag-info {
    background: rgba(0, 122, 255, 0.15);
    color: var(--ios-blue);
}

.ios-tag-default {
    background: rgba(142, 142, 147, 0.15);
    color: var(--ios-gray);
}

/* ========== 分页 ========== */
.ios-pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}

.ios-pagination a {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    text-decoration: none;
    color: var(--ios-text-secondary);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.06);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-pagination a:hover {
    background: rgba(255, 255, 255, 0.9);
    color: var(--ios-blue);
    transform: translateY(-2px);
}

.ios-pagination a.active {
    background: var(--ios-blue);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

/* ========== 模态框 ========== */
.ios-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: fadeIn var(--ios-duration) var(--ios-ease);
}

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

.ios-modal-overlay.active {
    display: flex;
}

.ios-modal {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--ios-radius-xl);
    padding: 32px;
    max-width: 440px;
    width: 90%;
    text-align: center;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.2);
    animation: scaleIn var(--ios-duration) var(--ios-ease-bounce);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.ios-modal-icon {
    font-size: 56px;
    margin-bottom: 16px;
    animation: bounceIn 0.6s var(--ios-ease-bounce);
}

.ios-modal-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--ios-text);
}

.ios-modal-text {
    color: var(--ios-text-secondary);
    font-size: 15px;
    margin-bottom: 24px;
    line-height: 1.6;
}

.ios-modal-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 上传进度弹窗 ========== */
.ios-upload-modal {
    background: linear-gradient(135deg, var(--ios-blue), var(--ios-purple));
    border-radius: 50%;
    width: 300px;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 122, 255, 0.4);
    animation: scaleIn var(--ios-duration) var(--ios-ease-bounce);
}

.ios-progress-ring {
    position: relative;
    width: 180px;
    height: 180px;
}

.ios-progress-ring svg {
    transform: rotate(-90deg);
    width: 180px;
    height: 180px;
}

.ios-progress-ring .bg-circle {
    fill: none;
    stroke: rgba(255, 255, 255, 0.2);
    stroke-width: 10;
}

.ios-progress-ring .progress-circle {
    fill: none;
    stroke-width: 10;
    stroke-linecap: round;
    stroke: #fff;
    stroke-dasharray: 502.4;
    stroke-dashoffset: 502.4;
    transition: stroke-dashoffset 0.3s ease;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.5));
}

.ios-progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 36px;
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* ========== 文件预览弹窗 ========== */
.ios-preview-modal {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.ios-preview-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    border-radius: var(--ios-radius-lg);
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
    animation: scaleIn var(--ios-duration) var(--ios-ease);
}

.ios-preview-content img {
    display: block;
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    background: #fff;
}

.ios-preview-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border: none;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--ios-duration) var(--ios-ease);
    z-index: 10;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ios-preview-close:hover {
    background: var(--ios-red);
    transform: rotate(90deg) scale(1.1);
}

/* ========== 工具类 ========== */
.ios-text-muted { color: var(--ios-text-secondary); }
.ios-text-small { font-size: 13px; }
.ios-text-danger { color: var(--ios-red); }
.ios-text-success { color: var(--ios-green); }
.ios-text-warning { color: var(--ios-orange); }

.ios-flex { display: flex; }
.ios-flex-center { display: flex; align-items: center; justify-content: center; }
.ios-flex-between { display: flex; align-items: center; justify-content: space-between; }
.ios-flex-wrap { flex-wrap: wrap; }
.ios-gap-sm { gap: 8px; }
.ios-gap { gap: 16px; }
.ios-gap-lg { gap: 24px; }

.ios-mb-sm { margin-bottom: 8px; }
.ios-mb { margin-bottom: 16px; }
.ios-mb-lg { margin-bottom: 24px; }
.ios-mt-sm { margin-top: 8px; }
.ios-mt { margin-top: 16px; }
.ios-mt-lg { margin-top: 24px; }

.ios-w-100 { width: 100%; }

/* ========== 滚动条美化 ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* ========== 选中效果 ========== */
::selection {
    background: rgba(0, 122, 255, 0.2);
    color: var(--ios-text);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .ios-navbar-inner {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 0;
    }
    
    .ios-navbar-links {
        display: none;
        width: 100%;
        flex-direction: column;
        padding: 12px;
        gap: 6px;
        background: rgba(255, 255, 255, 0.9);
        border-radius: var(--ios-radius);
        margin-top: 10px;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .ios-navbar-links.open {
        display: flex;
        animation: slideInDown var(--ios-duration) var(--ios-ease);
    }
    
    .ios-navbar-links a,
    .ios-navbar-links button {
        width: 100%;
        justify-content: flex-start;
    }
    
    .ios-hamburger {
        display: block !important;
    }
    
    .ios-card {
        padding: 20px;
    }
    
    .ios-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .ios-stat-value {
        font-size: 22px;
    }
    
    .ios-modal {
        padding: 24px 20px;
        margin: 20px;
    }
    
    .ios-upload-modal {
        width: 260px;
        height: 260px;
    }
    
    .ios-progress-ring {
        width: 150px;
        height: 150px;
    }
    
    .ios-progress-ring svg {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .ios-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .ios-btn {
        width: 100%;
    }
    
    .ios-btn-sm,
    .ios-btn-xs {
        width: auto;
    }
}

/* ========== 汉堡菜单 ========== */
.ios-hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--ios-text-secondary);
    padding: 8px;
    border-radius: 8px;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-hamburger:hover {
    background: rgba(0, 122, 255, 0.1);
    color: var(--ios-blue);
}

.ios-hamburger:active {
    transform: scale(0.92);
}

/* ========== 加载骨架屏 ========== */
.ios-skeleton {
    background: linear-gradient(90deg, 
        rgba(255,255,255,0.4) 25%, 
        rgba(255,255,255,0.7) 50%, 
        rgba(255,255,255,0.4) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--ios-radius-sm);
}

/* ========== 空状态 ========== */
.ios-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--ios-text-tertiary);
    animation: fadeInUp var(--ios-duration-slow) var(--ios-ease);
}

.ios-empty-state i {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
    animation: float 3s ease-in-out infinite;
}

.ios-empty-state p {
    font-size: 15px;
    margin-top: 8px;
}

/* ========== 代码块 ========== */
.ios-code-block {
    background: rgba(0, 0, 0, 0.04);
    padding: 16px 20px;
    border-radius: var(--ios-radius);
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 13px;
    word-break: break-all;
    border: 1px solid rgba(0, 0, 0, 0.06);
    color: var(--ios-text-secondary);
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-code-block:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* ========== 开关 ========== */
.ios-switch {
    position: relative;
    width: 52px;
    height: 32px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 16px;
    cursor: pointer;
    transition: all var(--ios-duration) var(--ios-ease);
    border: none;
    outline: none;
}

.ios-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 28px;
    height: 28px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-switch.active {
    background: var(--ios-green);
}

.ios-switch.active::after {
    transform: translateX(20px);
}

/* ========== 头像 ========== */
.ios-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--ios-blue), var(--ios-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.25);
}

/* ========== 分割线 ========== */
.ios-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.08), transparent);
    margin: 20px 0;
    border: none;
}

/* ========== 卡片标题 ========== */
.ios-card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--ios-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.ios-card-title i {
    color: var(--ios-blue);
    font-size: 20px;
}

/* ========== 文件上传区域 ========== */
.ios-upload-area {
    border: 2px dashed rgba(0, 0, 0, 0.1);
    border-radius: var(--ios-radius-lg);
    padding: 40px 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.4);
    transition: all var(--ios-duration) var(--ios-ease);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.ios-upload-area:hover {
    border-color: var(--ios-blue);
    background: rgba(0, 122, 255, 0.04);
}

.ios-upload-area.dragover {
    border-color: var(--ios-blue);
    background: rgba(0, 122, 255, 0.08);
    transform: scale(1.02);
}

.ios-upload-area i {
    font-size: 48px;
    color: var(--ios-text-tertiary);
    margin-bottom: 12px;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-upload-area:hover i {
    color: var(--ios-blue);
    transform: translateY(-4px);
}

.ios-upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* ========== 文件标签 ========== */
.ios-file-tag {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 24px;
    padding: 6px 14px 6px 16px;
    font-size: 13px;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--ios-duration) var(--ios-ease);
    animation: scaleIn var(--ios-duration) var(--ios-ease);
}

.ios-file-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.ios-file-tag .remove-file {
    background: rgba(255, 59, 48, 0.1);
    color: var(--ios-red);
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    cursor: pointer;
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-file-tag .remove-file:hover {
    background: var(--ios-red);
    color: #fff;
    transform: scale(1.1);
}

/* ========== 复制按钮 ========== */
.ios-copy-btn {
    background: rgba(0, 122, 255, 0.08);
    border: none;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all var(--ios-duration) var(--ios-ease);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--ios-blue);
    font-weight: 500;
}

.ios-copy-btn:hover {
    background: rgba(0, 122, 255, 0.15);
    transform: translateY(-1px);
}

.ios-copy-btn:active {
    transform: scale(0.96);
}

.ios-copy-btn.copied {
    background: var(--ios-green) !important;
    color: #fff !important;
}

/* ========== 页面容器 ========== */
.ios-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

.ios-page-header {
    margin-bottom: 32px;
    animation: fadeInDown var(--ios-duration-slow) var(--ios-ease);
}

.ios-page-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--ios-text), var(--ios-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ios-page-subtitle {
    color: var(--ios-text-secondary);
    font-size: 16px;
}

/* ========== 渐变文字 ========== */
.ios-gradient-text {
    background: linear-gradient(135deg, var(--ios-blue), var(--ios-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== 特性卡片 ========== */
.ios-feature-card {
    background: var(--ios-card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--ios-card-border);
    border-radius: var(--ios-radius-lg);
    padding: 32px;
    box-shadow: var(--ios-card-shadow);
    transition: all var(--ios-duration) var(--ios-ease);
    animation: fadeInUp var(--ios-duration-slow) var(--ios-ease) both;
}

.ios-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--ios-card-shadow-hover);
}

.ios-feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-feature-card:hover .ios-feature-icon {
    transform: scale(1.1) rotate(5deg);
}

/* ========== 步骤指示器 ========== */
.ios-steps {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.ios-step {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--ios-text-tertiary);
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-step.active {
    color: var(--ios-blue);
}

.ios-step i {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.06);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: all var(--ios-duration) var(--ios-ease);
}

.ios-step.active i {
    background: var(--ios-blue);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.ios-step-line {
    flex: 1;
    height: 2px;
    background: rgba(0, 0, 0, 0.06);
    max-width: 60px;
    border-radius: 1px;
}

/* ========== 打印样式 ========== */
@media print {
    body::before,
    .ios-navbar,
    .ios-btn,
    .ios-modal-overlay {
        display: none !important;
    }
    
    .ios-card {
        background: #fff;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}