:root {
    --s-bg: #ffffff;
    --s-text: #202124;
    --s-dim: #70757a;
    --s-border: #dfe1e5;
    --s-blue: #1a73e8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: var(--s-bg);
    color: var(--s-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.s-header {
    height: 60px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 0 20px;
}

.s-header a {
    text-decoration: none;
    color: var(--s-text);
    font-size: 13px;
    margin-left: 15px;
}

.s-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 120px;
}

.s-logo-area {
    margin-bottom: 30px;
}

.s-logo-text {
    font-size: 90px;
    font-weight: bold;
    letter-spacing: -4px;
}

.s-box-container {
    width: 100%;
    max-width: 584px;
    position: relative;
    margin-bottom: 30px;
}

.s-box {
    width: 100%;
    height: 46px;
    border: 1px solid var(--s-border);
    border-radius: 24px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    transition: box-shadow 0.2s;
    cursor: pointer;
}

.s-box:hover {
    box-shadow: 0 1px 6px rgba(32,33,36,0.28);
    border-color: rgba(223,225,229,0);
}

.s-box-text {
    color: var(--s-dim);
    font-size: 16px;
    flex: 1;
}

.s-btns {
    display: flex;
    gap: 12px;
}

.s-btn {
    background: #f8f9fa;
    border: 1px solid #f8f9fa;
    border-radius: 4px;
    color: #3c4043;
    font-size: 14px;
    padding: 0 16px;
    height: 36px;
    line-height: 36px;
    cursor: pointer;
    text-decoration: none;
}

.s-btn:hover {
    box-shadow: 0 1px 1px rgba(0,0,0,0.1);
    background-image: linear-gradient(top,#f8f9fa,#f1f3f4);
    background-color: #f8f9fa;
    border: 1px solid #dadce0;
    color: #202124;
}

/* New: Trending Section */
.s-trending {
    margin-top: 60px;
    width: 100%;
    max-width: 584px;
}

.s-trend-h3 {
    font-size: 16px;
    font-weight: 400;
    margin-bottom: 20px;
    color: var(--s-dim);
}

.s-trend-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f1f3f4;
    text-decoration: none;
    color: var(--s-text);
    font-size: 14px;
}

.s-trend-item:hover {
    background: #f8f9fa;
}

.trend-icon {
    margin-right: 15px;
    color: var(--s-dim);
}

/* New: Ecosystem Icons */
.s-ecosystem {
    margin-top: 80px;
    display: flex;
    gap: 40px;
}

.eco-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--s-text);
}

.eco-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: background 0.2s;
}

.eco-item:hover .eco-icon {
    background: #e8f0fe;
}

.s-footer {
    background: #f2f2f2;
    padding: 15px 30px;
    border-top: 1px solid #e4e4e4;
    color: var(--s-dim);
    font-size: 14px;
}

.s-footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 10px;
}

@media (max-width: 600px) {
    .s-logo-text { font-size: 60px; }
    .s-box-container { padding: 0 20px; }
}