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span:nth-child(2){transform:rotate(-45deg)}.mobile-nav{flex-direction:column;gap:24px;display:flex}.mobile-nav a{color:#fff;letter-spacing:.05em;border-bottom:1px solid #ffffff1a;padding-bottom:12px;font-size:1.2rem;font-weight:600;text-decoration:none}.hero-main{letter-spacing:.15em;text-indent:.15em;margin-bottom:20px;font-size:4.8rem}.hero-date{gap:8px;padding-top:18px;font-size:1.1rem}.content-inner{padding:60px 20px}.about-title{font-size:2.2rem}.inline-spark-logo{height:4rem}.about p{font-size:1.05rem}.access h2,.precautions h2{font-size:2.5rem}.access iframe{height:280px}.access-info h3{font-size:1.5rem}.access-info .address{font-size:1.15rem}.station-title{font-size:1.2rem}.station-group p{font-size:1.05rem}.precautions-item{grid-template-columns:50px 1fr;padding:24px 0}.precautions-num{font-size:1.3rem}.precautions-body h3{font-size:1.15rem}.precautions-body p{font-size:.95rem}}