/* =============================================
   子羡科技官网 - 首页样式
   ============================================= */

/* Hero Section */
.hero { min-height: 100vh; background: #1a56db; display: flex; align-items: center; padding: 100px 0 80px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 80vh; height: 80vh; background: radial-gradient(circle, rgba(26,86,219,.2) 0%, transparent 70%); border-radius: 50%; }
.hero::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 60vh; height: 60vh; background: radial-gradient(circle, rgba(6,182,212,.15) 0%, transparent 70%); border-radius: 50%; }

.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-content {}
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px; background: rgba(26,86,219,.2); border: 1px solid rgba(26,86,219,.4); border-radius: 100px; font-size: 13px; color: #93c5fd; font-weight: 500; margin-bottom: 28px; }
.hero-badge-dot { width: 6px; height: 6px; background: #22d3ee; border-radius: 50%; animation: blink 1.5s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .3; } }

.hero h1 { font-size: clamp(36px, 4.5vw, 62px); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 24px; }
.hero h1 span { background: linear-gradient(135deg, #60a5fa, #22d3ee); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 18px; color: rgba(255,255,255,.65); line-height: 1.8; margin-bottom: 36px; max-width: 520px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 32px; }
.hero-stat { text-align: center; }
.hero-stat-num { font-size: 28px; font-weight: 800; color: #fff; line-height: 1; }
.hero-stat-num span { font-size: 16px; color: #60a5fa; }
.hero-stat-label { font-size: 13px; color: rgba(255,255,255,.45); margin-top: 4px; }

/* Hero 右侧卡片展示 */
.hero-visual { position: relative; }
.hero-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hero-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: 16px; padding: 24px; backdrop-filter: blur(10px); transition: var(--transition); }
.hero-card:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.hero-card-icon { width: 48px; height: 48px; background: linear-gradient(135deg, var(--primary), var(--accent)); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.hero-card-icon svg { color: #fff; }
.hero-card-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.hero-card-desc { font-size: 13px; color: rgba(255,255,255,.5); line-height: 1.6; }

/* 服务优势数字 */
.adv-section { background: var(--bg-gray); }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--border); border-radius: var(--radius); overflow: hidden; }
.adv-item { background: var(--bg-white); padding: 40px 32px; text-align: center; }
.adv-item-icon { width: 56px; height: 56px; background: var(--primary-light); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.adv-item-icon svg { color: var(--primary); }
.adv-num { font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 8px; }
.adv-label { font-size: 15px; color: var(--text-sub); font-weight: 500; }

/* 服务卡片 */
.services-section { background: var(--bg-white); }
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.service-card { padding: 36px; border-radius: var(--radius); border: 2px solid var(--border); transition: var(--transition); cursor: pointer; }
.service-card:hover { border-color: var(--primary); box-shadow: 0 8px 32px rgba(26,86,219,.12); transform: translateY(-4px); }
.service-card-icon { width: 60px; height: 60px; border-radius: 14px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; transition: var(--transition); }
.service-card:hover .service-card-icon { background: var(--primary); }
.service-card:hover .service-card-icon svg { color: #fff !important; }
.service-card-icon svg { color: var(--primary); }
.service-card-title { font-size: 20px; font-weight: 700; color: var(--secondary); margin-bottom: 12px; }
.service-card-desc { font-size: 15px; color: var(--text-sub); line-height: 1.8; margin-bottom: 20px; }
.service-card-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.service-card-more { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 14px; font-weight: 600; }
.service-card-more svg { transition: var(--transition); }
.service-card:hover .service-card-more svg { transform: translateX(4px); }

/* 案例展示 */
.cases-section { background: var(--bg-gray); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); background: var(--bg-white); }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-img { aspect-ratio: 4/3; overflow: hidden; background: linear-gradient(135deg, #e8f0fe, #dbeafe); display: flex; align-items: center; justify-content: center; font-size: 48px; }
.case-img img { width: 100%; height: 100%; object-fit: cover; }
.case-info { padding: 20px 24px; }
.case-type-badge { display: inline-block; padding: 3px 10px; background: var(--primary-light); color: var(--primary); border-radius: 100px; font-size: 12px; font-weight: 500; margin-bottom: 8px; }
.case-title { font-size: 16px; font-weight: 600; color: var(--secondary); }

/* CTA 区域 */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, #1340b8 100%); padding: 80px 0; }
.cta-inner { text-align: center; }
.cta-inner h2 { font-size: clamp(28px, 3vw, 40px); font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-inner p { font-size: 17px; color: rgba(255,255,255,.75); margin-bottom: 36px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-contact { display: flex; align-items: center; gap: 24px; justify-content: center; margin-top: 24px; }
.cta-contact-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.8); font-size: 15px; }
.cta-contact-item svg { color: rgba(255,255,255,.6); }

/* 技术栈展示 */
.tech-section { background: var(--bg-white); padding: 60px 0; }
.tech-title { text-align: center; font-size: 14px; color: var(--text-light); font-weight: 500; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 32px; }
.tech-logos { display: flex; align-items: center; justify-content: center; gap: 40px; flex-wrap: wrap; }
.tech-item { display: flex; align-items: center; gap: 10px; color: var(--text-light); font-size: 14px; font-weight: 500; opacity: .7; transition: var(--transition); }
.tech-item:hover { opacity: 1; color: var(--text-sub); }

/* =============================================
   首页响应式
   ============================================= */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 48px; }
    .hero-visual { display: none; }
    .services-grid { grid-template-columns: 1fr 1fr; }
    .cases-grid { grid-template-columns: 1fr 1fr; }
    .adv-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .hero-stats { gap: 20px; }
    .hero-stat-num { font-size: 24px; }
    .services-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .adv-grid { grid-template-columns: 1fr 1fr; }
    .hero-btns { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
    .adv-grid { grid-template-columns: 1fr; }
    .cta-btns { flex-direction: column; align-items: center; }
    .cta-contact { flex-direction: column; gap: 12px; }
}