:root {
    --primary: #3d5afe;
    --accent: #00e5ff;
    --bg-deep: #05070a;
    --glass-bg: rgba(13, 17, 23, 0.7);
    --border: rgba(48, 54, 61, 0.4);
    --text: #f0f6fc;
    --text-dim: #8b949e;
    --glow: rgba(61, 90, 254, 0.3);
    --font: "Outfit", sans-serif;
    --mono: "JetBrains Mono", monospace;
}

html {
    scroll-behavior: smooth;
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text);
    font-family: var(--font);
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
    padding: 6px 12px;
    transition: all 0.3s ease;
    border-radius: 8px;
}
a:hover {
    color: var(--text);
    background-color: #ffffff15;
}

/* 霓虹极光背景 - 通用 */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    filter: blur(100px);
    opacity: 0.5;
}

.blob {
    position: absolute;
    border-radius: 50%;
    animation: move 20s infinite alternate;
}

.b1 { width: 400px; height: 400px; background: var(--primary); top: 10%; left: 10%; }
.b2 { width: 500px; height: 500px; background: #6200ea; bottom: 10%; right: 10%; animation-delay: -5s; }
.b3 { width: 300px; height: 300px; background: var(--accent); top: 50%; left: 50%; transform: translate(-50%, -50%); animation-delay: -10s; }

@keyframes move {
    0% { transform: translate(0, 0) scale(1.2); }
    100% { transform: translate(100px, 100px) scale(0.8); }
}

/* 通用品牌标识 */
.brand {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 2px;
    letter-spacing: -0.5px;
}

.brand span {
    color: var(--primary);
    text-shadow: 0 0 15px var(--glow);
}

.tagline {
    color: var(--text-dim);
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    opacity: 0.8;
}

/* 通用按钮组件 */
.glow-btn {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    display: inline-block;
    padding: 18px 32px;
    border-radius: 12px;
    color: white;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 15px var(--glow);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    font-size: 1rem;
    letter-spacing: 1px;
    text-align: center;
}

.glow-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow);
    filter: brightness(1.1);
}

.glow-btn:disabled {
    background: #1a1d23 !important;
    background-image: none !important;
    color: var(--text-dim) !important;
    box-shadow: none !important;
    cursor: not-allowed;
    filter: grayscale(1);
    opacity: 0.5;
}

.ghost-btn {
    background: transparent;
    border: 1px solid var(--border);
    display: inline-block;
    padding: 12px 24px;
    border-radius: 12px;
    color: var(--text-dim);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
}

.ghost-btn:hover {
    background: rgba(255, 64, 129, 0.05);
    color: #ff4081;
    border-color: #ff4081;
    box-shadow: 0 0 20px rgba(255, 64, 129, 0.2);
}