:root {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    color: #254738;
    background: #e7efe5;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 85% 15%, #d6e6ba 0, transparent 36%),
        linear-gradient(145deg, #e4efdf, #f5f3e7 65%, #d7e7d4);
}

a { color: inherit; }

.page {
    width: min(1060px, calc(100% - 36px));
    margin: 0 auto;
    padding: 38px 0 54px;
}

.kicker {
    color: #61806a;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .12em;
}

h1 {
    margin: 14px 0 18px;
    font-size: clamp(32px, 5.5vw, 68px);
    line-height: 1.2;
}

h2 {
    margin: 0 0 12px;
    font-size: clamp(22px, 3vw, 34px);
}

p { line-height: 1.85; }

.lead {
    font-size: clamp(16px, 2vw, 21px);
    color: #526b58;
    max-width: 760px;
}

.panel {
    margin-top: 26px;
    padding: clamp(22px, 4vw, 42px);
    border: 1px solid rgba(69,105,77,.16);
    border-radius: 25px;
    background: rgba(255,253,243,.92);
    box-shadow: 0 16px 45px rgba(37,67,46,.10);
}

.cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 15px;
    margin-top: 25px;
}

.card {
    padding: 22px;
    border-radius: 17px;
    background: #edf3e6;
}

.card strong { display:block; margin-bottom:8px; }

.actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.btn {
    display: inline-block;
    padding: 13px 20px;
    border-radius: 13px;
    background: #315b43;
    color: #fffaf0;
    font-weight: 700;
    text-decoration: none;
}

.btn.secondary {
    background: #e3dac3;
    color: #34503d;
}

.muted { color:#6c806d; font-size:13px; }

video {
    display: block;
    width: 100%;
    max-height: 65vh;
    border-radius: 15px;
    background: #172c21;
}

details {
    margin: 16px 0;
    padding: 16px;
    border: 1px solid #c9d8c6;
    border-radius: 15px;
    background: #f4f7f0;
}

summary {
    cursor: pointer;
    font-weight: 700;
    margin-bottom: 12px;
}

@media (max-width: 680px) {
    .cards { grid-template-columns: 1fr; }
    .page { padding-top: 26px; }
}