/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #0b0f1a 0%, #1a1f2e 100%);
    font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
    padding: 1.5rem;
    overflow: hidden;
}

.container {
    text-align: center;
    animation: fadeInUp 1.2s ease-out forwards;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    max-width: 820px;
    width: 100%;
}
h1.main-text {
    font-size: clamp(2.8rem, 11vw, 5.8rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg, #a0e9ff 0%, #6b8cff 40%, #c084fc 80%, #f9a8d4 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientShift 4s ease-in-out infinite alternate,
        floatGlow 3s ease-in-out infinite alternate;
    text-shadow: 0 0 30px rgba(107, 140, 255, 0.3);
    line-height: 1.2;
    margin: 0;
}
h2.sub-text {
    font-size: clamp(1rem, 3vw, 1.6rem);
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    font-weight: 300;
    animation: fadeInUp 1.8s ease-out forwards;
    animation-delay: 0.3s;
    opacity: 0;
    margin-top: 0.2rem;
    margin-bottom: 0;
}
.domain-text {
    font-size: clamp(0.9rem, 2vw, 1.3rem);
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.3em;
    font-weight: 300;
    animation: fadeInUp 2s ease-out forwards;
    animation-delay: 0.6s;
    opacity: 0;
    margin-top: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 0.8rem;
    width: 80%;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}
.intro-text {
    font-size: clamp(0.85rem, 1.6vw, 1.05rem);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.35);
    font-weight: 300;
    letter-spacing: 0.02em;
    max-width: 620px;
    margin: 1.2rem auto 0;
    padding: 0 1rem;
    animation: fadeInUp 2.2s ease-out forwards;
    animation-delay: 0.9s;
    opacity: 0;
    border-top: none;
}
.intro-text strong {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
}
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 100% 50%;
    }
}
@keyframes floatGlow {
    0% {
        transform: translateY(0px) scale(1);
        text-shadow: 0 0 30px rgba(107, 140, 255, 0.2);
    }
    100% {
        transform: translateY(-8px) scale(1.02);
        text-shadow: 0 0 60px rgba(107, 140, 255, 0.6), 0 0 120px rgba(192, 132, 252, 0.3);
    }
}
.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    pointer-events: none;
    z-index: -1;
}
.orb1 {
    width: 40vw;
    height: 40vw;
    top: -10vh;
    right: -10vw;
    background: #6b8cff;
    animation: orbFloat 12s ease-in-out infinite alternate;
}
.orb2 {
    width: 30vw;
    height: 30vw;
    bottom: -5vh;
    left: -5vw;
    background: #c084fc;
    animation: orbFloat 15s ease-in-out infinite alternate-reverse;
}
@keyframes orbFloat {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(40px, -30px) scale(1.2);
    }
}
@media (max-width: 480px) {
    .intro-text {
        max-width: 100%;
        padding: 0 0.5rem;
    }
    .domain-text {
        width: 90%;
    }
}