* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #0a0a0a;
    color: #f0f0f0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.65;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    display: flex;
    min-height: 100vh;
}

.left-panel {
    width: 268px;
    background: #0f0f0f;
    border-right: 1px solid #ff5050;
    padding: 48px 28px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    margin-bottom: 68px;
}

.logo-text {
    font-size: 3.1rem;
    font-weight: 900;
    letter-spacing: -4px;
    color: #ff5050;
    line-height: 1;
}

.logo-sub {
    font-size: 0.79rem;
    letter-spacing: 6px;
    opacity: 0.6;
    margin-top: 8px;
    font-weight: 400;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 72px;
}

.nav-link {
    color: #b0b0b0;
    text-decoration: none;
    padding: 13px 20px;
    font-size: 0.97rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
    color: #ffffff;
    background: rgba(255, 80, 80, 0.08);
    border-left-color: #ff5050;
}

.mirrors-title {
    font-size: 0.82rem;
    letter-spacing: 2.5px;
    color: #ff5050;
    margin-bottom: 16px;
    text-transform: uppercase;
    font-weight: 600;
}

.mirror-link {
    display: block;
    color: #ff5050;
    font-size: 0.86rem;
    margin-bottom: 12px;
    text-decoration: none;
    word-break: break-all;
    transition: opacity 0.2s ease;
}

.mirror-link:hover {
    opacity: 0.75;
}

.mirrors-note {
    font-size: 0.76rem;
    opacity: 0.55;
    line-height: 1.5;
    margin-top: 24px;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 52px 72px 80px;
    max-width: 1280px;
}

.header-void {
    text-align: center;
    margin-bottom: 52px;
}

.title {
    font-size: 3.55rem;
    font-weight: 900;
    letter-spacing: -4.5px;
    background: linear-gradient(90deg, #ffffff, #ff5050 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.05;
    margin-bottom: 12px;
}

.subtitle {
    font-size: 1.18rem;
    opacity: 0.7;
    letter-spacing: 3px;
    font-weight: 400;
}

.ad-banner {
    margin: 40px 0 56px;
    text-align: center;
    background: #111111;
    padding: 14px;
    border: 1px solid #1f1f1f;
}

.ad-banner img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 1px solid #222;
}

/* Sections */
.section {
    margin-bottom: 82px;
}

.section-title {
    font-size: 1.92rem;
    font-weight: 700;
    color: #ff5050;
    margin-bottom: 26px;
    letter-spacing: -0.6px;
}

.section-text {
    font-size: 1.03rem;
    color: #d0d0d0;
    max-width: 860px;
    margin-bottom: 22px;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 32px;
}

.info-card {
    background: #111111;
    border: 1px solid #1f1f1f;
    padding: 32px 30px;
    transition: border-color 0.3s ease;
}

.info-card:hover {
    border-color: #ff5050;
}

.info-card h3 {
    color: #ff5050;
    font-size: 1.28rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    padding: 8px 0;
    border-bottom: 1px solid #1a1a1a;
    font-size: 0.99rem;
}

.info-card li:last-child {
    border-bottom: none;
}

/* Void Grid */
.void-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.void-card {
    background: #111111;
    border: 1px solid #1f1f1f;
    padding: 16px;
    position: relative;
    transition: all 0.35s ease;
}

.void-card:hover {
    border-color: #ff5050;
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(255, 80, 80, 0.08);
}

.void-card.large {
    grid-column: span 2;
}

.card-label {
    position: absolute;
    top: -13px;
    left: 24px;
    background: #0a0a0a;
    color: #ff5050;
    font-size: 0.8rem;
    padding: 4px 16px;
    letter-spacing: 1px;
    font-weight: 500;
}

.void-card img {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid #222222;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 11px 0 11px 28px;
    position: relative;
    font-size: 1.01rem;
    color: #d0d0d0;
}

.feature-list li:before {
    content: "→";
    color: #ff5050;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* SEO Content */
.seo-content {
    background: #0f0f0f;
    padding: 48px 52px;
    border: 1px solid #222;
}

.warning {
    margin-top: 70px;
    padding: 28px 36px;
    background: rgba(255, 80, 80, 0.04);
    border: 1px solid rgba(255, 80, 80, 0.2);
    text-align: center;
    font-size: 0.92rem;
    color: #bbbbbb;
}

.warning .red {
    color: #ff5050;
    margin-right: 10px;
    font-size: 1.3rem;
    vertical-align: middle;
}

/* Responsive */
@media (max-width: 1100px) {
    .left-panel {
        position: static;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid #ff5050;
        padding: 38px 28px;
    }
    .main-content {
        padding: 48px 32px;
    }
    .features {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .title {
        font-size: 2.8rem;
    }
    .void-grid {
        grid-template-columns: 1fr;
    }
    .void-card.large {
        grid-column: span 1;
    }
}

.header-void {
    position: relative;
}

.title {
    font-size: 3.6rem;
    line-height: 1.05;
    font-weight: 900;
    letter-spacing: -4px;
    background: linear-gradient(90deg, #ffffff 0%, #ff5050 65%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.22rem;
    opacity: 0.72;
    letter-spacing: 4px;
    margin-top: 8px;
}

.section-title {
    position: relative;
    display: inline-block;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 48px;
    height: 2px;
    background: #ff5050;
    opacity: 0.6;
}

.info-card {
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.info-card:hover {
    transform: translateY(-4px);
}

.void-card {
    overflow: hidden;
}

.void-card img {
    transition: transform 0.4s ease;
}

.void-card:hover img {
    transform: scale(1.03);
}

.mirror-link {
    transition: color 0.2s ease, transform 0.2s ease;
}

.mirror-link:hover {
    color: #ffffff;
    transform: translateX(4px);
}

.warning {
    border-radius: 4px;
    font-size: 0.93rem;
}

.seo-content p {
    margin-bottom: 1.4em;
}

.seo-content strong {
    color: #ff5050;
    font-weight: 600;
}

/* Schema & SEO friendly micro-adjustments */
h1, h2, h3 {
    scroll-margin-top: 80px;
}

@media (max-width: 992px) {
    .title {
        font-size: 2.95rem;
    }
    .subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 640px) {
    .main-content {
        padding: 40px 20px;
    }
    .left-panel {
        padding: 32px 20px;
    }
}