/* 轮播图 */
.hero {background:linear-gradient(135deg,#1e3a8a 0%,#3b82f6 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.hero-content {display:flex;align-items:center;gap:50px;position:relative;z-index:1}
.hero-text {flex:1}
.hero h1 {font-size:42px;margin-bottom:20px;line-height:1.3;font-weight:700}
.hero h1 .highlight {color:#fed7aa}
.hero-desc {font-size:18px;margin-bottom:30px;color:#e2e8f0}
.cta-group {display:flex;gap:15px;flex-wrap:wrap}
.btn {padding:15px 35px;border-radius:8px;font-weight:600;font-size:16px;display:inline-flex;align-items:center;gap:10px;transition:.3s;cursor:pointer}
.btn-primary {background:#f97316;color:#fff;border:none}
.btn-primary:hover {background:#ea580c;transform:translateY(-2px);box-shadow:0 5px 15px rgba(249,115,22,.4)}
.btn-secondary {background:#fff;color:#1e3a8a;border:2px solid #fff}
.btn-secondary:hover {background:transparent;color:#fff}

/* 案例展示区 */
.section{padding:80px 0}
.section-title{text-align:center;font-size:36px;margin-bottom:50px;color:#1e293b}
.section-title span{color:#f97316}
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px}
.case-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:.3s}
.case-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.case-img{height:auto;object-fit:cover;position:relative}
.case-badge{position:absolute;top:15px;right:15px;background:#f97316;color:#fff;padding:5px 15px;border-radius:20px;font-size:14px}
.case-info{padding:25px}
.case-title{font-size:20px;margin-bottom:10px;color:#1e293b}
.case-desc{color:#64748b;font-size:15px;margin-bottom:15px}
.case-meta{display:flex;justify-content:space-between;font-size:14px;color:#94a3b8}
.case-link{color:#f97316;font-weight:600;display:inline-flex;align-items:center;gap:5px;margin-top:15px}

/* 服务优势 */
.advantages{background:#fff}
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}
.adv-item{text-align:center;padding:30px;border-radius:12px;background:#f8fafc;transition:.3s}
.adv-item:hover{background:#e0f2fe;transform:scale(1.05)}
.adv-icon{font-size:48px;margin-bottom:20px}
.adv-title{font-size:22px;margin-bottom:15px;color:#1e293b}
.adv-desc{color:#64748b;line-height:1.7}

/* 客户背书 */
.clients{background:#f8f9fa;text-align:center}
.client-logos{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:40px;margin:40px 0}
.client-logo{height:auto;opacity:.7;filter:grayscale(100%);transition:.3s}
.client-logo:hover{opacity:1;filter:grayscale(0)}
.testimonial{max-width:800px;margin:30px auto;background:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.testimonial-text{font-size:18px;color:#334155;font-style:italic;margin-bottom:20px;line-height:1.8}
.testimonial-author{font-weight:600;color:#1e293b}

/* 展会日历（城市选择+动态交互）仅新增/修改以下部分 */
.calendar-section{background:#fff;padding:60px 0}
.calendar-box{max-width:1200px;margin:0 auto;background:#f8fafc;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.calendar-header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;background:#1e3a8a;color:#fff;flex-wrap:wrap;gap:10px}
.calendar-month{font-size:20px;font-weight:600;margin-left:10px;}
.calendar-nav{display:flex;gap:10px}
.calendar-nav button{background:#fff;color:#1e3a8a;border:none;padding:6px 12px;border-radius:6px;cursor:pointer;font-size:14px}
.calendar-year-select,.calendar-city-select{margin-left:10px;padding:4px 8px;border-radius:4px;border:none;font-size:14px}
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:#e5e7eb;z-index:1;position:relative;}
.calendar-cell{background:#c3d6e1;padding:8px;font-size:14px;display:flex;flex-direction:column;justify-content:space-between;min-height:90px;transition:background .3s,transform .2s;cursor:pointer;max-width:165px;}
.calendar-cell.header{background:#efa673;font-weight:600;text-align:center}
.calendar-cell .date{font-weight:600;margin-bottom:4px}
.calendar-cell .event{font-size:12px;color:#e72f05;margin-top:2px;/*white-space:nowrap;*/overflow:hidden;text-overflow:ellipsis}
/* 有展会日期格：淡橙背景 */
.calendar-cell.has-event{background:#94d999}
.calendar-cell.has-event:hover{background:#ffe8cc;transform:scale(1.03)}

/* CTA（原样保留） */
.cta-section{background:linear-gradient(135deg,#f97316 0%,#ea580c 100%);color:#fff;text-align:center;padding:80px 0}
.cta-section h2{font-size:36px;margin-bottom:20px}
.cta-section p{font-size:18px;margin-bottom:30px;opacity:.95}
.cta-form{max-width:900px;margin:0 auto;display:flex;gap:15px;background:#fff;padding:20px;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.cta-form input{flex:1;padding:15px;border:1px solid #e2e8f0;border-radius:8px;font-size:16px}
.cta-form button{background:#1e3a8a;color:#fff;border:none;padding:0 30px;border-radius:8px;font-weight:600;cursor:pointer;transition:.3s}
.cta-form button:hover{background:#1e40af}