* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0f1115;
    color: #f5f5f5;
    line-height: 1.6;
}
a { color: #ffb400; text-decoration: none; }
a:hover { text-decoration: underline; }
header {
    border-bottom: 1px solid #23252b;
    background: #12151b;
    position: sticky;
    top: 0;
    z-index: 10;
}
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 16px;
}
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 20px;
}
.logo-mark {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    border: 2px solid #ffb400;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}
nav ul {
    display: flex;
    list-style: none;
    gap: 18px;
    font-size: 14px;
}
main {
    padding: 32px 0 48px;
}
.hero {
    padding: 24px 0 32px;
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.4fr);
    gap: 24px;
}
.hero-left h1 {
    font-size: 32px;
    margin-bottom: 12px;
}
.hero-left p {
    color: #c2c3c7;
    margin-bottom: 16px;
}
.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.badge {
    border-radius: 999px;
    border: 1px solid #2b2e37;
    padding: 4px 10px;
    font-size: 12px;
    color: #d0d1d6;
    background: #181b24;
}
.hero-right {
    border-radius: 16px;
    border: 1px solid #242731;
    background: radial-gradient(circle at top left, #2a1f10, #10131a);
    padding: 16px 18px 18px;
}
.hero-right h2 {
    font-size: 18px;
    margin-bottom: 4px;
}
.hero-right p {
    font-size: 13px;
    color: #d5d6da;
    margin-bottom: 10px;
}
.hero-list {
    list-style: none;
    font-size: 13px;
}
.hero-list li {
    padding: 6px 0;
    border-bottom: 1px dashed #2d3039;
}
.hero-list li:last-child {
    border-bottom: none;
}
.hero-tag {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #ffb400;
}
.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 32px 0 16px;
}
.section-title h2 {
    font-size: 20px;
}
.section-title span {
    font-size: 13px;
    color: #a8a9ae;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}
.card {
    border-radius: 14px;
    border: 1px solid #252832;
    background: #151821;
    padding: 14px 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.card-tag {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #ffb400;
}
.card h3 {
    font-size: 16px;
}
.card p {
    font-size: 13px;
    color: #c6c7cc;
}
.meta {
    font-size: 11px;
    color: #8f9198;
}
.badge-small {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid #303341;
    font-size: 11px;
    color: #d2d3d8;
}
.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0 12px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid #ffb400;
    background: #ffb400;
    color: #111111;
    cursor: pointer;
    text-decoration: none;
}
.btn-outline {
    background: transparent;
    color: #ffb400;
}
.btn small {
    font-size: 10px;
    opacity: 0.8;
}
footer {
    border-top: 1px solid #23252b;
    padding: 18px 0 26px;
    font-size: 12px;
    color: #8c8e95;
    background: #101218;
}
footer a { color: #c2c3c7; }
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 2.4fr) minmax(0, 1.1fr);
    gap: 28px;
}
.breadcrumb {
    font-size: 12px;
    color: #9a9ca2;
    margin-bottom: 10px;
}
.breadcrumb a { color: #d5d6da; }
.article h1 {
    font-size: 26px;
    margin-bottom: 8px;
}
.article-intro {
    color: #c5c6cb;
    margin-bottom: 14px;
}
.article-meta {
    font-size: 12px;
    color: #8f9198;
    margin-bottom: 18px;
}
.toc {
    border-radius: 12px;
    border: 1px solid #252832;
    background: #151821;
    padding: 12px 14px;
    margin-bottom: 20px;
}
.toc h2 {
    font-size: 14px;
    margin-bottom: 6px;
}
.toc ul {
    list-style: none;
    font-size: 13px;
    padding-left: 4px;
}
.toc li {
    padding: 4px 0;
}
.article h2 {
    font-size: 20px;
    margin: 18px 0 8px;
}
.article h3 {
    font-size: 16px;
    margin: 14px 0 6px;
}
.article p {
    font-size: 14px;
    margin-bottom: 9px;
}
.article ul {
    padding-left: 18px;
    margin-bottom: 10px;
    font-size: 14px;
}
.article li {
    margin-bottom: 4px;
}
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.sidebar-box {
    border-radius: 12px;
    border: 1px solid #252832;
    background: #151821;
    padding: 12px 14px;
}
.sidebar-box h3 {
    font-size: 14px;
    margin-bottom: 6px;
}
.sidebar-box ul {
    list-style: none;
    font-size: 13px;
}
.sidebar-box li {
    padding: 4px 0;
}
.aff-note {
    font-size: 11px;
    color: #a5a6ac;
    margin-top: 4px;
}
@media (max-width: 800px) {
    .hero {
        grid-template-columns: minmax(0, 1fr);
    }
    .article-layout {
        grid-template-columns: minmax(0, 1fr);
    }
    nav ul {
        display: none;
    }
    .topbar {
        justify-content: space-between;
    }
}