* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #409eff;
    --success: #67c23a;
    --warning: #e6a23c;
    --danger: #f56c6c;
    --info: #909399;
    --bg-dark: #1a1a2e;
    --bg-card: #16213e;
    --text-primary: #e8e8e8;
    --text-secondary: #a0aec0;
    --border-color: #2d3748;
}

body {
    min-height: 100vh;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-dark), #0d1b2a);
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei",
        sans-serif;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 32px;
    background: rgb(22 33 62 / 95%);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    align-items: center;
    justify-content: space-between;
}

.logo,
.header-actions,
.card-header,
.selling-points-input,
.tag,
.btn {
    display: flex;
    align-items: center;
}

.logo {
    gap: 12px;
    color: #fff;
    font-size: 22px;
    font-weight: 700;
}

.logo-icon {
    display: grid;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    place-items: center;
}

.header-actions {
    gap: 12px;
}

.current-time {
    color: var(--text-secondary);
    font-size: 13px;
}