:root {
    --dark-blue: #0F172A;
    --purple: #6366F1;
    --light-purple: #818cf8;
    --white: #F8FAFC;
    --light-grey: #E2E8F0;
    --medium-grey: #94A3B8;
    --dark-grey: #475569;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--white);
    color: var(--dark-blue);
    font-size: 16px;
    line-height: 1.5;
    overflow-x: hidden;
}

/* iOS 状态栏 */
.status-bar {
    height: 44px;
    width: 100%;
    background-color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.status-bar-time {
    font-weight: 600;
    font-size: 15px;
}

.status-bar-icons {
    display: flex;
    gap: 5px;
}

.status-bar-icons i {
    font-size: 14px;
}

/* 通用容器 */
.container {
    padding: 16px;
    padding-bottom: 90px; /* 为底部导航栏留出空间 */
}

/* 底部导航栏 */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: var(--white);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    z-index: 100;
    padding-bottom: 20px;
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    color: var(--medium-grey);
    text-decoration: none;
    font-size: 10px;
    transition: all 0.3s ease;
}

.tab-item i {
    font-size: 22px;
}

.tab-item.active {
    color: var(--purple);
}

/* 卡片样式 */
.card {
    background-color: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    padding: 16px;
    margin-bottom: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:active {
    transform: scale(0.98);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

/* 按钮样式 */
.button {
    background-color: var(--purple);
    color: var(--white);
    border: none;
    border-radius: 12px;
    padding: 14px 20px;
    font-weight: 600;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
    white-space: nowrap;
    text-decoration: none;
}

.button:active {
    transform: scale(0.98);
    box-shadow: 0 1px 4px rgba(99, 102, 241, 0.2);
    background-color: var(--light-purple);
}

.button-secondary {
    background-color: var(--light-grey);
    color: var(--dark-blue);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.button-secondary:active {
    background-color: #d1d5db;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
}

/* 表单元素 */
.form-group {
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-grey);
}

input, textarea, select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--light-grey);
    border-radius: 12px;
    font-size: 16px;
    background-color: var(--white);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    border-color: var(--purple);
    outline: none;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* 分隔线 */
.divider {
    height: 1px;
    background-color: var(--light-grey);
    margin: 16px 0;
}

/* 大标题 */
.page-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

/* 子标题 */
.section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    margin-top: 24px;
}

/* 徽章 */
.badge {
    background-color: var(--light-purple);
    color: var(--white);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.badge-outline {
    background-color: transparent;
    color: var(--purple);
    border: 1px solid var(--purple);
}

/* iOS样式的滚动条 */
::-webkit-scrollbar {
    width: 0;  /* 移除滚动条 */
    height: 0;
}

/* iOS滚动效果模拟 */
.scroll-container {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* 启用iOS风格的滚动 */
    scroll-behavior: smooth;
}

/* 列表样式 */
.list-item {
    padding: 16px;
    border-bottom: 1px solid var(--light-grey);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.list-item:last-child {
    border-bottom: none;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* 栅格系统 */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -8px;
}

.col {
    padding: 0 8px;
    flex: 1;
}

.col-6 {
    width: 50%;
    padding: 0 8px;
}

/* 全局链接样式 */
a {
    text-decoration: none;
    color: inherit;
}

a.button, button.button, input[type="button"], input[type="submit"] {
    white-space: nowrap;
    text-decoration: none;
}