:root {
    --ink: #232335;
    --muted: #6d6d80;
    --line: #e9e2f2;
    --card: #ffffff;
    --violet: #e23b3b;
    --violet-dark: #b91c1c;
    --radius: 20px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    color: var(--ink);
    background: #fff;
}

body.home {
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    color: #fff;
    background:
        radial-gradient(circle at 12% 8%, rgba(255, 91, 61, 0.36), transparent 40%),
        radial-gradient(circle at 88% 20%, rgba(124, 58, 237, 0.36), transparent 42%),
        linear-gradient(135deg, #120b14 0%, #2a0d16 55%, #4a0f1a 100%);
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.site-header {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 20px 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.brand img {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.brand:hover {
    text-decoration: none;
}

.site-header nav {
    display: flex;
    flex-wrap: wrap;
    gap: 22px;
    font-size: 14px;
    font-weight: 600;
}

.site-header nav a {
    opacity: 0.85;
}

.site-header nav a:hover {
    opacity: 1;
    text-decoration: none;
}

body.home main {
    flex: 1;
    display: flex;
    align-items: center;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0 24px;
}

.hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 40px;
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 8px 0;
}

.eyebrow {
    margin: 0 0 12px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    opacity: 0.85;
}

h1 {
    margin: 0 0 16px;
    font-size: clamp(38px, 5.4vw, 72px);
    line-height: 1.02;
    letter-spacing: -0.04em;
}

.lead {
    margin: 0 0 22px;
    max-width: 500px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.86);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    border: 1px solid transparent;
}

.btn.primary {
    background: #fff;
    color: var(--violet-dark);
    box-shadow: 0 12px 30px rgba(35, 20, 80, 0.28);
}

.btn.primary:hover {
    background: #f7f3ff;
    text-decoration: none;
}

.btn.ghost {
    border-color: rgba(255, 255, 255, 0.45);
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
}

.btn.ghost:hover {
    background: rgba(255, 255, 255, 0.16);
    text-decoration: none;
}

.feature-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin: 20px 0 0;
    list-style: none;
}

.feature-chips li {
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
}

.hero-art {
    position: relative;
    height: min(56vh, 500px);
    min-height: 300px;
}

.shot {
    position: absolute;
    display: block;
    width: 42%;
    height: auto;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 24px 58px rgba(30, 16, 70, 0.38);
    object-fit: cover;
}

.shot-1 {
    left: 1%;
    top: 12%;
    transform: rotate(-5deg);
}

.shot-2 {
    left: 29%;
    top: 0;
    z-index: 2;
}

.shot-3 {
    right: 1%;
    top: 12%;
    transform: rotate(5deg);
}

.site-footer {
    flex: none;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 16px 24px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    color: rgba(255, 255, 255, 0.82);
    font-size: 12px;
}

.site-footer strong {
    display: block;
    margin-bottom: 2px;
    color: #fff;
    font-size: 13px;
}

.site-footer p {
    margin: 0;
    max-width: 620px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.footer-links a {
    color: #fff;
    font-weight: 600;
}

/* Privacy document */
.doc-page {
    background: #fff;
    color: var(--ink);
}

.doc-page .site-header {
    border-bottom: 1px solid var(--line);
}

.doc-page .site-header nav a {
    color: var(--muted);
}

.doc-page .brand {
    color: var(--ink);
}

.doc {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 24px 64px;
}

.doc .eyebrow {
    color: var(--violet);
    opacity: 1;
}

.doc h1 {
    color: var(--ink);
    font-size: clamp(34px, 5vw, 48px);
    margin-bottom: 8px;
}

.doc .meta {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 32px;
}

.doc h2 {
    margin: 34px 0 10px;
    font-size: 20px;
    letter-spacing: -0.01em;
}

.doc p,
.doc li {
    color: #44445a;
    font-size: 15.5px;
}

.doc ul {
    padding-left: 22px;
    margin: 6px 0 14px;
}

.doc li {
    margin-bottom: 8px;
}

.doc a {
    color: var(--violet-dark);
    text-decoration: underline;
}

.doc code {
    padding: 2px 6px;
    border-radius: 6px;
    background: #f3effb;
    font-size: 13px;
}

.doc .back {
    margin-top: 48px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.doc-page .site-footer {
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.doc-page .site-footer strong,
.doc-page .footer-links a {
    color: var(--ink);
}

@media (max-width: 860px) {
    body.home {
        overflow-y: auto;
    }

    .site-header {
        flex-direction: row;
        align-items: center;
        gap: 12px;
        padding: 10px 16px;
    }

    .brand {
        gap: 8px;
        font-size: 14px;
    }

    .brand img {
        width: 32px;
        height: 32px;
        border-radius: 9px;
    }

    .brand span {
        white-space: nowrap;
    }

    .site-header nav {
        gap: 12px;
        font-size: 12px;
    }

    body.home main {
        align-items: flex-start;
        padding: 0 16px;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 4px 0;
    }

    .hero-art {
        order: -1;
        position: static;
        display: flex;
        gap: 8px;
        height: auto;
        min-height: 0;
    }

    .shot {
        position: static;
        width: 32%;
        height: 190px;
        border-radius: 12px;
        object-fit: cover;
        transform: none;
    }

    h1 {
        font-size: 34px;
        margin-bottom: 10px;
    }

    .lead {
        font-size: 13.5px;
        line-height: 1.55;
        margin-bottom: 14px;
    }

    .actions {
        gap: 8px;
    }

    .btn {
        padding: 10px 14px;
        font-size: 12px;
    }

    .feature-chips {
        gap: 6px;
        margin-top: 12px;
    }

    .feature-chips li {
        padding: 5px 10px;
        font-size: 11px;
    }

    .site-footer {
        flex-direction: column;
        gap: 8px;
        padding: 10px 16px 16px;
    }

    .site-footer strong {
        font-size: 12px;
    }

    .site-footer p {
        font-size: 10.5px;
        line-height: 1.5;
    }

    .footer-links {
        gap: 10px;
        font-size: 11px;
    }
}

@media (max-width: 860px) and (max-height: 700px) {
    .hero-art {
        display: none;
    }
}

@media (max-height: 680px) and (min-width: 861px) {
    .hero-art {
        height: 300px;
        min-height: 300px;
    }

    h1 {
        font-size: 46px;
    }

    .lead {
        font-size: 14px;
    }

    .feature-chips {
        margin-top: 12px;
    }
}