/* V2 下载页专属样式 */

/* Hero */
.dl-hero {
    min-height: 100vh; padding-top: var(--nav-h);
    position: relative; display: flex; align-items: center;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hbg-orb1 {
    position: absolute; top: -300px; right: -200px;
    width: 900px; height: 900px;
    background: radial-gradient(circle, rgba(6,182,212,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hbg-orb2 {
    position: absolute; bottom: -400px; left: -200px;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(139,92,246,0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hbg-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(6,182,212,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6,182,212,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.hbg-scanline {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(6,182,212,0.03) 50%, transparent 100%);
    background-size: 100% 4px;
    animation: scan 8s linear infinite;
    pointer-events: none;
}
@keyframes scan { 0% { background-position: 0 0; } 100% { background-position: 0 100vh; } }

.dl-hero-content {
    max-width: var(--container); margin: 0 auto; padding: 0 24px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
    align-items: center; width: 100%; padding-top: 40px;
    padding-bottom: 60px; position: relative; z-index: 1;
}

/* 左侧 */
.hero-left { }
.section-tag {
    display: inline-block; font-size: 0.8rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--primary); background: var(--primary-glow);
    padding: 6px 14px; border-radius: 20px; margin-bottom: 20px;
    border: 1px solid var(--border-glow);
}
.hero-left h1 {
    font-size: 4rem; font-weight: 900; line-height: 1;
    letter-spacing: -0.04em; margin-bottom: 20px;
}
.hero-left p {
    font-size: 1rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 32px;
}
.hero-stats-row {
    display: flex; gap: 32px; margin-bottom: 36px;
}
.hstat { display: flex; flex-direction: column; }
.hstat-n {
    font-size: 2rem; font-weight: 900; font-family: 'Inter', sans-serif;
    color: var(--text); letter-spacing: -0.04em;
}
.hstat-n span { font-size: 1rem; font-weight: 600; }
.hstat-l { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

.hero-download-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary); color: #0B1120;
    font-weight: 700; font-size: 0.9rem; padding: 12px 24px;
    border-radius: 10px; text-decoration: none; transition: all 0.2s;
}
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(6,182,212,0.3); }
.btn-primary.secondary { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }
.btn-primary.secondary:hover { border-color: var(--primary); color: var(--primary); }

/* 右侧玻璃卡片 */
.hero-right { display: flex; justify-content: center; }
.glass-card {
    background: rgba(26,34,54,0.7);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    width: 100%; max-width: 340px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(6,182,212,0.1);
}
.gc-header {
    background: rgba(15,20,35,0.5);
    padding: 12px 16px;
    display: flex; align-items: center; gap: 6px;
    border-bottom: 1px solid var(--border);
}
.gch-dots { display: flex; gap: 5px; }
.gch-dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.gch-title { font-size: 0.7rem; color: var(--text-muted); margin-left: 8px; font-family: 'Inter', monospace; }
.gc-body { padding: 32px 24px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.gc-logo { margin-bottom: 4px; }
.gc-name { font-size: 1.4rem; font-weight: 900; }
.gc-version { font-size: 0.75rem; color: var(--text-muted); }
.gc-status {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.8rem; color: var(--success);
    background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.2);
    padding: 6px 14px; border-radius: 20px;
}
.gcs-dot {
    width: 6px; height: 6px; background: var(--success);
    border-radius: 50%; animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}
.gc-bar { width: 100%; }
.gcb-track {
    height: 4px; background: var(--border); border-radius: 2px; overflow: hidden;
}
.gcb-fill {
    height: 100%; width: 78%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}
.gcb-labels {
    display: flex; justify-content: space-between;
    font-size: 0.65rem; color: var(--text-muted);
    margin-top: 4px;
}
.gc-download {
    display: flex; align-items: center; gap: 8px;
    background: var(--primary); color: #0B1120;
    font-weight: 700; font-size: 0.9rem; padding: 12px 24px;
    border-radius: 10px; text-decoration: none; transition: all 0.2s;
    width: 100%; justify-content: center;
}
.gc-download:hover { background: var(--primary-light); transform: translateY(-1px); }
.gc-certs {
    display: flex; gap: 12px; font-size: 0.7rem; color: var(--text-muted);
}

/* 平台网格 */
.dl-platforms-v2 { }
.platform-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.pg-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px;
    transition: all 0.3s; position: relative; overflow: hidden;
}
.pg-card:hover {
    border-color: var(--border-glow); box-shadow: var(--shadow-glow);
    transform: translateY(-3px);
}
.pg-card.wide { grid-column: span 2; }
.pg-card.ai-card {
    background: linear-gradient(135deg, rgba(6,182,212,0.05), rgba(6,182,212,0.12));
    border-color: var(--border-glow);
}
.pgc-top {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-bottom: 16px;
}
.pgc-icon {
    width: 52px; height: 52px; background: var(--primary-glow);
    border-radius: 14px; display: flex; align-items: center; justify-content: center;
}
.pgc-version {
    font-size: 0.7rem; font-weight: 700; color: var(--primary);
    background: var(--primary-glow); border: 1px solid var(--border-glow);
    padding: 3px 10px; border-radius: 20px;
}
.pgc-name { font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; }
.pgc-desc { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; }
.pgc-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.pgc-tags span {
    font-size: 0.7rem; color: var(--text-muted);
    background: var(--bg-elevated); border: 1px solid var(--border);
    padding: 2px 10px; border-radius: 20px;
}
.pgc-btn {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary-glow); color: var(--primary);
    font-size: 0.8rem; font-weight: 700;
    padding: 8px 16px; border-radius: 8px;
    text-decoration: none; transition: all 0.2s;
}
.pgc-btn:hover { background: var(--primary); color: #0B1120; }
.pgc-btn.ai { color: var(--primary); }
.pgai-header { margin-bottom: 16px; }
.pgai-badge {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.7rem; font-weight: 700; color: var(--primary);
    background: var(--primary-glow); border: 1px solid var(--border-glow);
    padding: 4px 12px; border-radius: 20px;
}
.pgai-content { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.pgai-text h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.pgai-text p { font-size: 0.8rem; color: var(--text-secondary); }

/* 滚动数据条 */
.marquee-bar {
    background: linear-gradient(135deg, #1E293B, #0f172a);
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    padding: 12px 0; overflow: hidden;
}
.marquee-track {
    display: flex; align-items: center; gap: 0;
    white-space: nowrap;
    animation: marquee 30s linear infinite;
}
.marquee-track span {
    font-size: 0.8rem; font-weight: 600; color: var(--text-secondary);
    padding: 0 20px;
}
.marquee-track .sep { color: var(--primary); font-size: 0.5rem; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 快速开始 */
.quickstart .steps {
    display: flex; align-items: center; justify-content: center;
    gap: 16px; margin-bottom: 32px; flex-wrap: wrap;
}
.step {
    display: flex; align-items: flex-start; gap: 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px; flex: 1;
    max-width: 320px; min-width: 240px;
}
.step-num { font-size: 1.8rem; font-weight: 900; color: var(--primary); font-family: 'Inter', sans-serif; letter-spacing: -0.04em; opacity: 0.6; line-height: 1; }
.step-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.step-content p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
.step-arrow { font-size: 1.5rem; color: var(--primary); opacity: 0.4; flex-shrink: 0; }
.quickstart-note {
    text-align: center; font-size: 0.85rem; color: var(--text-muted);
    display: flex; align-items: center; justify-content: center; gap: 6px;
}
.quickstart-note a { color: var(--primary); text-decoration: none; font-weight: 600; }
.quickstart-note a:hover { text-decoration: underline; }

/* 响应式 */
@media (max-width: 1024px) {
    .dl-hero-content { grid-template-columns: 1fr; gap: 48px; text-align: center; }
    .hero-left h1 { font-size: 3rem; }
    .hero-stats-row { justify-content: center; }
    .hero-download-btns { justify-content: center; }
    .hero-right { display: none; }
    .platform-grid { grid-template-columns: repeat(2, 1fr); }
    .pg-card.wide { grid-column: span 1; }
}
@media (max-width: 768px) {
    .hero-left h1 { font-size: 2.5rem; }
    .hero-stats-row { flex-wrap: wrap; gap: 16px; }
    .platform-grid { grid-template-columns: 1fr; }
    .quickstart .steps { flex-direction: column; }
    .step-arrow { transform: rotate(90deg); }
}