:root {
    color-scheme: light;
    --ink: #123b47;
    --muted: #4f7580;
    --sky: #e7f8f6;
    --mint: #a9ddd3;
    --teal: #3e9f99;
    --deep: #176b72;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
}

body {
    overflow-x: hidden;
    background: var(--sky);
    color: var(--ink);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.hero {
    position: relative;
    display: grid;
    min-height: calc(100vh - 54px);
    min-height: calc(100svh - 54px);
    place-items: center;
    overflow: hidden;
    isolation: isolate;
    background:
        radial-gradient(circle at 68% 24%, rgba(255, 255, 255, .95) 0 7%, transparent 25%),
        linear-gradient(150deg, #f5fffd 0%, #d8f2ee 55%, #b9e3dc 100%);
}

.brand {
    z-index: 4;
    padding: 3rem 1.5rem 9rem;
    text-align: center;
}

.eyebrow {
    margin: 0 0 1rem;
    color: var(--teal);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .42em;
}

h1 {
    margin: 0;
    font-family: "STKaiti", "KaiTi", "PingFang SC", serif;
    font-size: clamp(4.5rem, 12vw, 9rem);
    font-weight: 500;
    letter-spacing: .12em;
    line-height: 1;
    text-indent: .12em;
    text-shadow: 0 14px 40px rgba(23, 107, 114, .14);
}

.tagline {
    margin: 1.6rem 0 0;
    color: var(--muted);
    font-size: clamp(.95rem, 2vw, 1.15rem);
    letter-spacing: .3em;
    text-indent: .3em;
}

.sun {
    position: absolute;
    top: 12%;
    right: 14%;
    width: clamp(5rem, 10vw, 8rem);
    aspect-ratio: 1;
    border-radius: 50%;
    background: rgba(255, 225, 145, .7);
    box-shadow: 0 0 70px rgba(255, 218, 123, .45);
}

.cloud {
    position: absolute;
    z-index: 1;
    width: 15rem;
    height: 4rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, .45);
    filter: blur(12px);
    animation: drift 9s ease-in-out infinite alternate;
}

.cloud-left {
    top: 22%;
    left: -5rem;
}

.cloud-right {
    top: 36%;
    right: -6rem;
    animation-delay: -4s;
}

.landscape {
    position: absolute;
    inset: auto 0 0;
    height: 42%;
}

.mountain {
    position: absolute;
    inset: auto -8% -20%;
    height: 100%;
    border-radius: 48% 52% 0 0 / 68% 72% 0 0;
    transform: rotate(-3deg);
}

.mountain-back {
    bottom: -32%;
    left: -28%;
    right: 34%;
    background: rgba(80, 164, 152, .3);
    transform: rotate(7deg);
}

.mountain-front {
    background: linear-gradient(135deg, var(--mint), var(--teal));
    box-shadow: inset 0 30px 70px rgba(255, 255, 255, .18);
}

.water {
    position: absolute;
    right: -10%;
    bottom: -36%;
    width: 70%;
    height: 95%;
    border-radius: 50% 0 0;
    background: linear-gradient(160deg, rgba(255, 255, 255, .78), rgba(66, 161, 161, .38));
    transform: rotate(-7deg);
}

footer {
    display: grid;
    min-height: 54px;
    place-items: center;
    background: var(--deep);
    color: rgba(255, 255, 255, .72);
    font-size: .75rem;
    letter-spacing: .08em;
}

@keyframes drift {
    to { transform: translateX(2rem); }
}

@media (max-width: 640px) {
    .brand {
        padding-bottom: 7rem;
    }

    .eyebrow {
        letter-spacing: .3em;
    }

    h1 {
        font-size: clamp(3.75rem, 20vw, 5rem);
        letter-spacing: .08em;
        text-indent: .08em;
    }

    .tagline {
        letter-spacing: .18em;
        text-indent: .18em;
    }

    .sun {
        top: 10%;
        right: 8%;
    }

    .landscape {
        height: 34%;
    }
}

@media (max-height: 520px) and (orientation: landscape) {
    .brand {
        padding-bottom: 3rem;
    }

    .eyebrow {
        margin-bottom: .5rem;
    }

    .tagline {
        margin-top: .8rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cloud {
        animation: none;
    }
}