* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8fafc;
    color: #1e293b;
    min-height: 100vh;
    padding: 2rem 1rem;
}

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

/* 头部 */
.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header h1 {
    font-size: 2.2rem;
    color: #0f172a;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.header h1 i {
    color: #2563eb;
}

.header p {
    color: #64748b;
    font-size: 1rem;
}

/* 分组标题 */
.group-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #334155;
    margin: 2rem 0 1rem;
    padding-left: 0.5rem;
    border-left: 4px solid #2563eb;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* 后台卡片 */
.card {
    background: #ffffff;
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    transition: all 0.25s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.12);
    border-color: #bfdbfe;
}

/* 状态标签 */
.status {
    position: absolute;
    top: 10px;
    right: 12px;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
}

.status.normal {
    background: #dcfce7;
    color: #166534;
}

.status.maintain {
    background: #fffbeb;
    color: #92400e;
}

/* 卡片内容 */
.card-icon {
    font-size: 1.8rem;
    color: #2563eb;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.card-url {
    font-size: 0.85rem;
    color: #94a3b8;
    word-break: break-all;
    background: #f8fafc;
    padding: 6px 10px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copy-btn {
    background: none;
    border: none;
    color: #2563eb;
    cursor: pointer;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.copy-btn:hover {
    color: #1d4ed8;
}

/* 提示 */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: #166534;
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.toast.show {
    opacity: 1;
}