/* ===== 云策科技 - 明亮科技风主题 ===== */
:root {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F1F5F9;
    --bg-hero: linear-gradient(160deg, #F8FAFF 0%, #EEF2FF 40%, #F0F9FF 100%);
    --accent-blue: #2563EB;
    --accent-purple: #F59E0B;
    --accent-cyan: #0891B2;
    --accent-green: #059669;
    --accent-pink: #EC4899;
    --accent-orange: #F59E0B;
    --gradient-main: linear-gradient(135deg, #2563EB 0%, #0891B2 100%);
    --gradient-glow: linear-gradient(135deg, #2563EB 0%, #3B82F6 40%, #0891B2 100%);
    --gradient-warm: linear-gradient(135deg, #EC4899 0%, #F59E0B 100%);
    --gradient-fresh: linear-gradient(135deg, #059669 0%, #0891B2 100%);
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --border-color: #E2E8F0;
    --glass-bg: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(37, 99, 235, 0.1);
    --card-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --card-shadow-hover: 0 20px 48px rgba(37, 99, 235, 0.12), 0 0 0 1px rgba(37, 99, 235, 0.08);
    --glow-blue: rgba(37, 99, 235, 0.25);
    --glow-purple: rgba(245, 158, 11, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* ===== 导航栏 ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 1.1rem 2rem;
    transition: all 0.35s ease;
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(20px) saturate(1.6);
    border-bottom: 1px solid var(--border-color);
    padding: 0.7rem 2rem;
    box-shadow: 0 2px 20px rgba(15, 23, 42, 0.06);
}
.nav-inner {
    max-width: 1280px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    font-size: 1.5rem; font-weight: 800; letter-spacing: 0.02em;
    color: var(--accent-blue);
    display: flex; align-items: center; gap: 0.5rem;
}
.nav-logo-img {
    height: 32px; width: 32px;
    object-fit: contain; flex-shrink: 0;
    -webkit-text-fill-color: initial;
}
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
    color: var(--text-secondary); font-size: 0.95rem; font-weight: 500;
    transition: color 0.3s;
    position: relative;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: -6px; left: 0;
    width: 0; height: 2.5px; border-radius: 2px;
    background: var(--gradient-main);
    transition: width 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-toggle { display: none; cursor: pointer; color: var(--text-primary); }
.nav-toggle span {
    display: block; width: 24px; height: 2px;
    background: var(--text-primary);
    margin: 6px 0; transition: all 0.3s;
}

/* ===== 通用区块 ===== */
.section {
    padding: 6rem 2rem;
    max-width: 1280px; margin: 0 auto;
}
.section-title {
    font-size: 2.5rem; font-weight: 800;
    text-align: center; margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}
.section-title span {
    color: inherit;
}
.section-subtitle {
    text-align: center; color: var(--text-secondary);
    font-size: 1.1rem; margin-bottom: 4rem;
    max-width: 600px; margin-left: auto; margin-right: auto;
}

/* ===== 渐变分隔线 ===== */
.gradient-divider {
    height: 3px; border: none; margin: 0;
    background: var(--gradient-glow); opacity: 0.3;
    border-radius: 2px;
}

/* ===== 卡片 ===== */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    backdrop-filter: blur(12px);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

/* ===== 图文卡片 (用于关于我们等页面) ===== */
.icon-text-card {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.icon-text-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.icon-text-card .card-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-text-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.icon-text-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.85rem 2.2rem; border-radius: 50px;
    font-size: 0.95rem; font-weight: 600;
    cursor: pointer; border: none;
    transition: all 0.3s ease;
}
.btn-primary {
    background: var(--gradient-main); color: #fff;
    box-shadow: 0 4px 16px var(--glow-blue);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px var(--glow-blue), 0 0 0 4px rgba(37, 99, 235, 0.08);
    filter: brightness(1.08);
}
.btn-outline {
    background: rgba(37, 99, 235, 0.06); color: var(--accent-blue);
    border: 1.5px solid rgba(37, 99, 235, 0.25);
}
.btn-outline:hover {
    background: rgba(37, 99, 235, 0.12);
    border-color: var(--accent-blue);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh; display: flex; align-items: center;
    justify-content: center; text-align: center;
    position: relative; overflow: hidden;
    padding: 0 2rem;
    background: var(--bg-hero);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }

.hero-content {
    position: relative; z-index: 10;
    max-width: 800px;
}
.hero-content h1 {
    font-size: 3.8rem; font-weight: 900; line-height: 1.2;
    margin-bottom: 1.5rem; letter-spacing: -0.02em;
    color: var(--text-primary);
}
.hero-content h1 span {
    color: inherit;
}
.hero-content p {
    font-size: 1.25rem; color: var(--text-secondary);
    margin-bottom: 2.5rem; line-height: 1.8;
}
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== 数据统计 ===== */
.stats-bar {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem;
    padding: 4rem 2rem; max-width: 1280px; margin: -4rem auto 0;
    position: relative; z-index: 10;
}
.stat-item {
    text-align: center;
    padding: 1.8rem; border-radius: 18px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    box-shadow: var(--card-shadow);
}
.stat-number {
    font-size: 2.8rem; font-weight: 900;
    color: var(--accent-blue);
}
.stat-label { color: var(--text-secondary); margin-top: 0.3rem; font-size: 0.9rem; }

/* ===== 产品网格 ===== */
.products-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem;
}
.product-card .product-icon {
    width: 60px; height: 60px; border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.5rem; color: #fff;
}
.product-card:nth-child(1) .product-icon { background: linear-gradient(135deg, #2563EB, #0891B2); box-shadow: 0 6px 20px rgba(37,99,235,0.25); }
.product-card:nth-child(2) .product-icon { background: linear-gradient(135deg, #059669, #0891B2); box-shadow: 0 6px 20px rgba(5,150,105,0.25); }
.product-card:nth-child(3) .product-icon { background: linear-gradient(135deg, #F59E0B, #EC4899); box-shadow: 0 6px 20px rgba(245,158,11,0.25); }
.product-card:nth-child(4) .product-icon { background: linear-gradient(135deg, #EC4899, #F59E0B); box-shadow: 0 6px 20px rgba(236,72,153,0.25); }
.product-card:nth-child(5) .product-icon { background: linear-gradient(135deg, #2563EB, #0EA5E9); box-shadow: 0 6px 20px rgba(37,99,235,0.25); }
.product-card h3 { font-size: 1.3rem; margin-bottom: 0.8rem; font-weight: 700; color: var(--text-primary); }
.product-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
.product-features {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-top: 1.2rem;
}
.product-features span {
    padding: 0.3rem 0.8rem; border-radius: 20px;
    background: rgba(37, 99, 235, 0.06);
    color: var(--accent-blue);
    font-size: 0.8rem; border: 1px solid rgba(37, 99, 235, 0.12);
    transition: all 0.3s;
}
.product-features span:hover {
    background: rgba(37, 99, 235, 0.12);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

/* ===== 合作伙伴滚动 ===== */
.partners-scroll {
    overflow: hidden; padding: 2rem 0;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.partners-track {
    display: flex; gap: 4rem;
    animation: scroll 30s linear infinite;
    width: max-content;
}
.partner-item {
    flex-shrink: 0;
    color: var(--text-muted); font-size: 1.2rem; font-weight: 700;
    opacity: 0.5; white-space: nowrap;
    transition: all 0.3s;
}
.partner-item:hover { opacity: 1; color: var(--accent-blue); }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== 页脚 ===== */
.footer {
    background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    color: #CBD5E1;
    padding: 0;
    position: relative;
    overflow: hidden;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-glow);
}
.footer::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 5rem 2rem 2rem;
    position: relative;
    z-index: 1;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 5rem;
    margin-bottom: 3rem;
}

/* Footer Brand */
.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.footer-logo-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: brightness(1.2);
}

.footer-logo-text {
    font-size: 1.8rem;
    font-weight: 900;
    color: #60A5FA;
    letter-spacing: 0.02em;
}

.footer-desc {
    color: #E2E8F0;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.footer-tagline {
    color: #94A3B8;
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(96, 165, 250, 0.4);
    color: #60A5FA;
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.2);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Footer Links */
.footer-links-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.footer-col h4 {
    color: #F1F5F9;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.footer-col a {
    display: block;
    color: #94A3B8;
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
    transition: all 0.3s;
    position: relative;
    padding-left: 0;
}

.footer-col a:hover {
    color: #60A5FA;
    padding-left: 8px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #94A3B8;
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
}

.footer-contact-item .contact-icon {
    width: 16px;
    height: 16px;
    color: #60A5FA;
    flex-shrink: 0;
}

.footer-contact-item a {
    display: inline;
    margin: 0;
    padding: 0;
}

.footer-contact-item a:hover {
    padding-left: 0;
}

.footer-contact-item span {
    color: #94A3B8;
}

/* Footer Divider */
.footer-divider {
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.1) 20%, 
        rgba(255, 255, 255, 0.1) 80%, 
        transparent 100%
    );
    margin: 2rem 0;
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    color: #64748B;
    font-size: 0.9rem;
}

.footer-copyright {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-copyright .separator {
    color: rgba(255, 255, 255, 0.2);
}

.footer-legal a {
    color: #64748B;
    transition: color 0.3s;
}

.footer-legal a:hover {
    color: #94A3B8;
}

/* ===== 时间轴 ===== */
.timeline { position: relative; padding: 2rem 0; }
.timeline::before {
    content: ''; position: absolute;
    left: 50%; top: 0; bottom: 0; width: 3px;
    background: var(--gradient-main); opacity: 0.2;
    transform: translateX(-50%); border-radius: 2px;
}
.timeline-item {
    display: flex; align-items: flex-start;
    margin-bottom: 3rem; position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row-reverse; }
.timeline-item:nth-child(odd) .timeline-content { text-align: right; padding-right: 3rem; padding-left: 0; }
.timeline-content { width: 50%; padding-left: 3rem; }
.timeline-dot {
    position: absolute; left: 50%; top: 0.5rem;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--gradient-main);
    transform: translateX(-50%);
    box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.12), 0 0 20px var(--glow-blue);
}
.timeline-year {
    font-size: 1.5rem; font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

/* ===== Tab 切换 ===== */
.tabs { display: flex; gap: 0.5rem; justify-content: center; margin-bottom: 3rem; flex-wrap: wrap; }
.tab-btn {
    padding: 0.7rem 1.5rem; border-radius: 50px;
    background: rgba(37, 99, 235, 0.04); border: 1.5px solid var(--border-color);
    color: var(--text-secondary); cursor: pointer;
    font-size: 0.95rem; font-weight: 500; transition: all 0.3s;
}
.tab-btn.active, .tab-btn:hover {
    background: var(--gradient-main); color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 16px var(--glow-blue);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ===== 解决方案网格 ===== */
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.solution-card { cursor: pointer; }
.solution-card .solution-icon { font-size: 2.5rem; margin-bottom: 1.2rem; }
.solution-card h3 { margin-bottom: 0.8rem; font-size: 1.2rem; font-weight: 700; color: var(--text-primary); }
.solution-card p { color: var(--text-secondary); font-size: 0.9rem; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.solution-tags span {
    padding: 0.25rem 0.65rem; border-radius: 6px;
    background: rgba(8, 145, 178, 0.06); color: var(--accent-cyan);
    font-size: 0.75rem; font-weight: 500;
    border: 1px solid rgba(8, 145, 178, 0.12);
}

/* ===== 联系表单 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label {
    display: block; margin-bottom: 0.5rem;
    color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
}
.form-group input, .form-group textarea {
    width: 100%; padding: 0.85rem 1rem;
    background: #F8FAFC; border: 1.5px solid var(--border-color);
    border-radius: 12px; color: var(--text-primary);
    font-size: 0.95rem; outline: none; transition: all 0.3s;
    font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: #fff;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); }
.form-group textarea { min-height: 140px; resize: vertical; }
.contact-info-item {
    display: flex; align-items: flex-start; gap: 1rem;
    margin-bottom: 2rem;
}
.contact-info-item .icon-box {
    width: 50px; height: 50px; border-radius: 14px;
    background: var(--gradient-main);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 16px var(--glow-blue);
}
.contact-info-item h4 { font-size: 1rem; margin-bottom: 0.3rem; font-weight: 700; color: var(--text-primary); }
.contact-info-item p { color: var(--text-secondary); font-size: 0.9rem; }

/* ===== 分页 ===== */
.pagination { display: flex; justify-content: center; gap: 0.5rem; margin-top: 3rem; }
.pagination a, .pagination span {
    padding: 0.5rem 1rem; border-radius: 10px;
    border: 1.5px solid var(--border-color);
    color: var(--text-secondary); font-size: 0.9rem;
    transition: all 0.3s;
}
.pagination a:hover, .pagination .active {
    background: var(--gradient-main); color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px var(--glow-blue);
}

/* ===== Toast ===== */
.toast {
    position: fixed; top: 5rem; right: 2rem; z-index: 9999;
    padding: 1rem 1.5rem; border-radius: 12px;
    background: var(--accent-green); color: #fff;
    font-weight: 600;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(5, 150, 105, 0.3);
}
.toast.show { transform: translateX(0); }
.toast.error { background: #EF4444; box-shadow: 0 8px 24px rgba(239, 68, 68, 0.3); }

/* ===== 页面 Header ===== */
.page-header {
    padding: 10rem 2rem 4rem; text-align: center;
    position: relative;
    background: linear-gradient(180deg, #EEF2FF 0%, #F8FAFF 40%, var(--bg-primary) 100%);
}
.page-header h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 1rem; letter-spacing: -0.02em; color: var(--text-primary); }
.page-header p { color: var(--text-secondary); font-size: 1.1rem; }

/* ===== 交替区块 ===== */
.section-alt {
    background: var(--bg-secondary);
    position: relative; max-width: 100%;
    padding-left: 2rem; padding-right: 2rem;
}
.section-alt::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--gradient-glow); opacity: 0.15;
}

/* ===== CTA 区块 ===== */
.cta-section {
    padding: 6rem 2rem; text-align: center;
    background: linear-gradient(135deg, #EEF2FF 0%, #F0F9FF 50%, #F5F3FF 100%);
    position: relative; overflow: hidden;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .products-grid { grid-template-columns: 1fr; }
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-main { grid-template-columns: 1fr; gap: 3rem; }
    .footer-links-group { gap: 2rem; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(20px);
        padding: 1rem 2rem; gap: 1rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    }
    .nav-toggle { display: block; }
    .hero-content h1 { font-size: 2.4rem; }
    .section-title { font-size: 1.8rem; }
    .news-grid { grid-template-columns: 1fr; }
    .solutions-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-main { grid-template-columns: 1fr; }
    .footer-links-group { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { 
        flex-direction: column; 
        gap: 1rem; 
        text-align: center; 
        padding: 1.5rem 0;
    }
    .footer-copyright {
        flex-direction: column;
        gap: 0.5rem;
    }
    .footer-copyright .separator {
        display: none;
    }
    .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: -2rem; }
    .stat-number { font-size: 2rem; }
    .timeline::before { left: 1rem; }
    .timeline-item, .timeline-item:nth-child(odd) { flex-direction: column; }
    .timeline-content, .timeline-item:nth-child(odd) .timeline-content {
        width: 100%; padding-left: 3rem; padding-right: 0; text-align: left;
    }
    .timeline-dot { left: 1rem; }
}

/* ===== 资源下载页面 ===== */
.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.download-card {
    position: relative;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s;
}

.download-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.15);
}

.download-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 20px;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px var(--glow-blue);
    color: #fff;
}

.download-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.download-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.download-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.download-badges {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.download-action {
    display: inline-flex;
    align-items: center;
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ===== 睡眠屋 APP 落地页 ===== */
.app-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.app-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.app-hero-content {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.app-hero-text {
    text-align: left;
}

.app-icon-large {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 24px var(--glow-blue);
    color: #fff;
}

.app-hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.app-hero h1 span {
    color: inherit;
}

.app-slogan {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.app-intro {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.app-download-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.app-stats {
    display: flex;
    gap: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 0.3rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.app-hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-mockup-placeholder {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 9/16;
    background: rgba(37, 99, 235, 0.05);
    border-radius: 30px;
    border: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

/* App Features Grid */
.app-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.app-feature-card {
    padding: 2rem;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    color: #fff;
}

.feature-icon.blue {
    background: linear-gradient(135deg, #2563EB, #0891B2);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.2);
}

.feature-icon.purple {
    background: linear-gradient(135deg, #F59E0B, #EA580C);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.2);
}

.feature-icon.cyan {
    background: linear-gradient(135deg, #0891B2, #06B6D4);
    box-shadow: 0 4px 16px rgba(8, 145, 178, 0.2);
}

.feature-icon.green {
    background: linear-gradient(135deg, #059669, #10B981);
    box-shadow: 0 4px 16px rgba(5, 150, 105, 0.2);
}

.feature-icon.orange {
    background: linear-gradient(135deg, #EA580C, #F59E0B);
    box-shadow: 0 4px 16px rgba(234, 88, 12, 0.2);
}

.feature-icon.pink {
    background: linear-gradient(135deg, #EC4899, #F472B6);
    box-shadow: 0 4px 16px rgba(236, 72, 153, 0.2);
}

.app-feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.app-feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: '•';
    position: absolute;
    left: 0.5rem;
    color: var(--accent-blue);
    font-weight: 700;
}

/* Pricing Features */
.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Badge variants */
.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-blue {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-green {
    background: rgba(16, 185, 129, 0.1);
    color: #10B981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-gray {
    background: rgba(100, 116, 139, 0.1);
    color: #64748B;
    border: 1px solid rgba(100, 116, 139, 0.2);
}

/* Responsive for App Pages */
@media (max-width: 1024px) {
    .app-hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .app-hero-text {
        text-align: center;
    }
    
    .app-icon-large {
        margin-left: auto;
        margin-right: auto;
    }
    
    .app-download-buttons {
        justify-content: center;
    }
    
    .app-stats {
        justify-content: center;
    }
    
    .app-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .app-hero h1 {
        font-size: 2.5rem;
    }
    
    .app-features-grid {
        grid-template-columns: 1fr;
    }
    
    .downloads-grid {
        grid-template-columns: 1fr;
    }
}