/* about-page.css */

.about-hero {
    padding: 120px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.about-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.about-hero-bg .glow-1, .about-hero-bg .glow-2 {
    position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.12;
}
.about-hero-bg .glow-1 { width: 500px; height: 500px; background: var(--primary); top: -100px; left: 50%; transform: translateX(-50%); }
.about-hero-bg .glow-2 { width: 300px; height: 300px; background: var(--accent); bottom: -50px; right: 20%; }

.about-hero-content { position: relative; z-index: 1; }
.app-icon-large { font-size: 5em; margin-bottom: 20px; }
.about-title { font-size: 3em; font-weight: 800; margin-bottom: 12px; background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.about-subtitle { font-size: 1.2em; color: var(--text-2); margin-bottom: 16px; }
.about-desc { font-size: 1em; color: var(--text-3); line-height: 1.8; margin-bottom: 32px; }
.about-badges { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.badge-item {
    background: var(--bg-card); border: 1px solid var(--border);
    padding: 8px 16px; border-radius: 20px; font-size: 0.88em;
}

.about-features, .about-styles, .about-download { padding: 80px 0; }
.about-features { background: var(--bg-card); }
.section-heading { font-size: 1.5em; font-weight: 700; margin-bottom: 32px; text-align: center; }

.features-grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.feature-item {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px;
    display: flex; gap: 16px; align-items: flex-start;
}
.fi-icon { font-size: 2em; flex-shrink: 0; }
.fi-title { font-size: 1em; font-weight: 700; margin-bottom: 8px; }
.fi-desc { font-size: 0.88em; color: var(--text-2); line-height: 1.7; }

.style-tags { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.style-tag {
    background: var(--bg-card); border: 1px solid var(--border);
    padding: 8px 20px; border-radius: 24px; font-size: 0.88em; color: var(--text-2);
    transition: all 0.2s; cursor: default;
}
.style-tag:hover { border-color: var(--primary); color: var(--primary-light); }

/* 下载卡 */
.download-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 40px;
    display: grid; grid-template-columns: auto 1fr; gap: 48px; align-items: center;
}
.download-left { display: flex; align-items: center; gap: 20px; }
.app-icon-large-dark { font-size: 4em; }
.download-name { font-size: 1.3em; font-weight: 700; }
.download-ver { font-size: 0.85em; color: var(--accent); margin: 4px 0; }
.download-size { font-size: 0.8em; color: var(--text-3); }

.qr-placeholder {
    background: #fff; border-radius: var(--radius);
    width: 160px; height: 160px; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 8px; margin-bottom: 16px;
}
.qr-icon { font-size: 2.5em; }
.qr-text { font-size: 0.75em; color: #333; font-weight: 500; }
.download-links {}
.dl-title { font-weight: 700; margin-bottom: 12px; }
.dl-item { font-size: 0.88em; color: var(--text-2); margin-bottom: 8px; line-height: 1.6; }
.dl-item a { color: var(--accent); }

@media (max-width: 768px) {
    .download-card { grid-template-columns: 1fr; }
    .download-left { flex-direction: column; text-align: center; }
    .qr-placeholder { margin: 0 auto 16px; }
}