/* iOS Style Refactor - Azure Blue & White */

/* 1. 字体与基础设置 - 使用 Apple 系统字体栈 */
body, .btn, h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
	font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 微软雅黑, Arial, sans-serif;
    -webkit-font-smoothing: antialiased; /* 让字体在 Mac/iOS 上更清晰 */
}

body {
    background-color: #F2F2F7; /* iOS 系统背景灰 */
    color: #1c1c1e;
}

/* 2. 顶部导航 - 磨砂玻璃效果 */
.nk-header {
	background-color: rgba(255, 255, 255, 0.8); /* 半透明白 */
    backdrop-filter: blur(20px); /* 磨砂玻璃核心属性 */
    -webkit-backdrop-filter: blur(20px);
	border-bottom: 1px solid rgba(0,0,0,0.05);
	box-shadow: 0 1px 0 rgba(0,0,0,0.02);
    position: sticky; /* 吸顶 */
    top: 0;
    z-index: 999;
}

/* 3. 卡片 - 圆角与弥散阴影 */
.card, .card-preview {
    background: #FFFFFF;
    border-radius: 16px; /* iOS 标准大圆角 */
	box-shadow: 0 4px 20px rgba(0,0,0,0.04); /* 更柔和的阴影 */
    border: none;
    margin-bottom: 24px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
/* 卡片悬停微动效 */
.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

/* 4. 色彩 - 蔚蓝色体系 */
a, .text-primary, .breadcrumb-item.active a {
	color: #007AFF !important; /* Apple Azure Blue */
    text-decoration: none;
}
a:hover {
    color: #0056b3 !important;
}

/* 5. 按钮 - 胶囊样式 */
.btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 0.6rem 1.2rem;
    border: none;
    box-shadow: none !important;
    transition: all 0.2s;
}
.btn-primary {
    background-color: #007AFF;
    color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
    background-color: #0062cc;
    transform: scale(1.02);
}
.btn-block {
    border-radius: 12px;
}

/* 6. 输入框 - iOS 风格灰底输入框 */
.form-control-lx {
	height: calc(3.625rem + 2px);
	padding: 0.6875rem 1.5rem;
	font-size: 1rem;
    background-color: #E5E5EA; /* iOS 输入框背景色 */
    border: 1px solid transparent;
	border-radius: 12px;
    color: #000;
    transition: all 0.2s;
}
.form-control-lx:focus {
    background-color: #FFFFFF;
    border-color: #007AFF;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.15); /* 蓝色光晕 */
}

/* 小标签优化 */
.nya-title {
	position: absolute;
	top: -12px;
    left: 20px;
	background-color: #007AFF;
	color: #fff;
	padding: 4px 12px;
	border-radius: 8px;
	font-size: 0.85rem;
    font-weight: 600;
	box-shadow: 0 4px 10px rgba(0, 122, 255, 0.3);
}

/* 暗黑模式适配 (iOS Dark Mode) */
.dark-mode { background-color: #000000; color: #f2f2f7; }
.dark-mode .nk-header { background-color: rgba(28, 28, 30, 0.8); border-bottom: 1px solid rgba(255,255,255,0.1); }
.dark-mode .card, .dark-mode .card-preview { background-color: #1C1C1E; color: #fff; box-shadow: none; }
.dark-mode .form-control-lx { background-color: #2C2C2E; color: #fff; }
.dark-mode .form-control-lx:focus { background-color: #3A3A3C; }
.dark-mode .nya-title { background-color: #0A84FF; }

/* 滚动条美化 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background-color: rgba(0,0,0,0.2); border-radius: 10px; }
::-webkit-scrollbar-track { background-color: transparent; }

/* 其他辅助类 */
.logo-link { font-weight: 700; font-size: 22px; letter-spacing: -0.5px; }
.nk-footer-wrap { padding: 40px 0; color: #8e8e93; }