/* ===== 基础全局设置 ===== */
html {
    margin-top: 0;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

body {
    margin: 0;
    line-height: inherit;
    color: #e5e7eb;
    background-color: #0a0a0a;
    position: relative;
    overflow-x: hidden;
}

/* ===== 动态背景粒子效果 ===== */
body::before {
    content: "";
    position: fixed;
    top: -40%;
    left: -40%;
    width: 180%;
    height: 180%;
    pointer-events: none;
    background:
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15), transparent 60%),
        radial-gradient(circle at 70% 70%, rgba(0, 230, 255, 0.12), transparent 50%);
    filter: blur(120px);
    z-index: 0;
}

body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    background-image: radial-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px);
    background-size: 25px 25px;
    z-index: 0;
}

/* ===== 链接样式 ===== */
a {
    color: #00aaff;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #00cfff;
    text-decoration: underline;
}

/* ===== 深色主题统一调整（减少 !important）===== */
.bg-white,
.bg-gray-100 {
    background-color: #1f2937;
}

.text-gray-600,
.text-gray-700 {
    color: #d1d5db;
}

.text-gray-500 {
    color: #9ca3af;
}

.text-black {
    color: #ffffff;
}

/* ===== 页脚统一风格 ===== */
footer,
.footer {
    background-color: #111827;
    color: #d1d5db;
}

.footer a {
    color: #00aaff;
    transition: color 0.2s;
}

.footer a:hover {
    text-decoration: underline;
    color: #00cfff;
}

/* ===== 下拉菜单样式 ===== */
#dropdown-menu {
    position: absolute;
    top: 2.5rem;
    left: 0;
    width: 6rem;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 50;
}

#dropdown-menu a {
    display: block;
    padding: 0.5rem 1rem;
    color: #374151;
}

#dropdown-menu a:hover {
    background-color: #f3f4f6;
    color: #0088cc;
}


.download-btn {
    display: block;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    color: white;
    text-align: center;
    width: 100%;
}

.green {
    background: linear-gradient(to right, #16a34a, #059669);
    border: 1px solid #4ade80;
}

.pink {
    background: linear-gradient(to right, #db2777, #9333ea);
}

.blue {
    background: linear-gradient(to right, #3b82f6, #6366f1);
    border: 1px solid #60a5fa;
}

.red {
    background: linear-gradient(to right, #dc2626, #059669);
}

.purple {
    border: 1px solid #c084fc;
}

.download-btn:hover {
    transform: scale(1.05);
}

.info-box {
    backdrop-filter: blur(8px);
    padding: 1.5rem;
    border-radius: 1rem;
    text-align: center;
    color: #d1d5db;
}