*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body{
    height: 100%;
}

body{
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

#app{
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    /* 柔和渐变背景 + 两团橙色光斑装饰 */
    background:
        radial-gradient(1200px 800px at 80% -10%, rgba(255, 186, 49, 0.18), transparent 60%),
        radial-gradient(1000px 700px at 10% 110%, rgba(255, 128, 46, 0.16), transparent 60%),
        linear-gradient(180deg, #fffdf4 0%, #fff8e6 100%);
    position: relative;
}

/* logo */
#logo{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 40px;
}

#logo img{
    width: 200px;
    /* 动态呼吸发光：柔和橙色光晕，呼应品牌色 */
    filter: drop-shadow(0 0 18px rgba(255, 150, 40, 0.55)) drop-shadow(0 8px 22px rgba(255, 130, 30, 0.35));
    animation: breathe 3s ease-in-out infinite;
}

@keyframes breathe{
    0%, 100%{
        filter: drop-shadow(0 0 14px rgba(255, 150, 40, 0.15)) drop-shadow(0 8px 22px rgba(255, 130, 30, 0.30));
    }
    50%{
        filter: drop-shadow(0 0 30px rgba(255, 160, 50, 0.35)) drop-shadow(0 8px 22px rgba(255, 130, 30, 0.40));
    }
}

#logo h1{
    margin-top: 18px;
    font-size: 34px;
    font-weight: 600;
    color: #3a3a3a;
    letter-spacing: 2px;
}

/* slogan：圆点分隔符 + 字距 */
#slogan{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 22px;
    margin-bottom: 46px;
}

#slogan .word{
    font-size: 26px;
    font-weight: 300;
    color: #555555;
    letter-spacing: 6px;
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

#slogan .dot{
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #ff8a2e;
    box-shadow: 0 0 8px rgba(255, 138, 46, 0.5);
}

/* tools：每排 6 个，图标只展示不显示文字 */
#tools{
    display: grid;
    grid-template-columns: repeat(6, minmax(max-content, auto));
    justify-content: center;
    align-items: center;
    gap: 18px;
}

#tools .tool{
    width: 64px;
    height: 64px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 4px 16px rgba(255, 170, 40, 0.10);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

#tools .tool:hover{
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(255, 150, 40, 0.22);
    background: rgba(255, 255, 255, 0.95);
}

#tools img{
    width: 40px;
    height: 40px;
    object-fit: contain;
}

#footer{
    position: absolute;
    bottom: 20px;
    font-size: 13px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #a3a3a3;
}

.contact{
    display: flex;
    gap: 24px;
}

.contact-item{
    display: flex;
    align-items: center;
    gap: 6px;
}

.contact-icon{
    width: 16px;
    height: 16px;
    color: #ff8a2e;
}
a{
    text-decoration: none;
    color: #a3a3a3;
}