.feature-page {
    --feature-bg: #09090B;
    --feature-surface: rgba(18, 18, 26, 0.7);
    --feature-surface-strong: rgba(24, 24, 34, 0.85);
    --feature-border: rgba(255, 255, 255, 0.1);
    --feature-text: #FAFAFA;
    --feature-muted: #A1A1AA;
    --feature-brand: #6366F1;
    --feature-brand-strong: #818CF8;
    --feature-brand-soft: rgba(99, 102, 241, 0.1);
    --feature-accent: #F59E0B;
    min-height: 100vh;
    padding-bottom: 80px;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.12), transparent),
        var(--feature-bg);
}

.feature-page .background-orb {
    filter: blur(120px);
    opacity: 0.8;
}

.feature-page .orb-1 {
    background: radial-gradient(circle, rgba(99, 102, 241, 0.18), transparent 70%);
}

.feature-page .orb-2 {
    background: radial-gradient(circle, rgba(245, 158, 11, 0.12), transparent 70%);
}

.feature-page .site-header {
    background: rgba(9, 9, 11, 0.8);
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

.feature-page .site-logo {
    color: var(--feature-text);
}

.feature-page .site-nav-link {
    color: var(--feature-muted);
    border-color: transparent;
    background: transparent;
}

.feature-page .site-nav-link:hover {
    color: var(--feature-text);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.feature-page .site-nav-link.is-active {
    color: #fff;
    background: linear-gradient(135deg, var(--feature-brand), var(--feature-brand-strong));
    border-color: transparent;
}

.feature-page .btn-primary {
    background: linear-gradient(135deg, var(--feature-brand), var(--feature-brand-strong));
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.feature-page .btn-primary:hover {
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.feature-page .btn-secondary,
.feature-page .btn-copy {
    color: var(--feature-text);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.feature-page .btn-secondary:hover,
.feature-page .btn-copy:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

.feature-main {
    padding: calc(var(--topbar-height) + 48px) 0 64px;
}

.feature-hero {
    position: relative;
    padding: 48px;
    border-radius: var(--radius-xl);
    background: var(--feature-surface);
    border: 1px solid var(--feature-border);
    backdrop-filter: blur(20px);
    overflow: hidden;
}

.feature-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.feature-hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    right: -150px;
    top: -150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 70%);
    pointer-events: none;
}

.feature-hero > * {
    position: relative;
    z-index: 1;
}

.feature-eyebrow {
    display: inline-flex;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 700;
    color: var(--feature-brand-strong);
    background: var(--feature-brand-soft);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin: 0;
}

.feature-hero h1 {
    margin: 16px 0 12px;
    color: var(--feature-text);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.feature-hero p {
    max-width: 640px;
    color: var(--feature-muted);
    font-size: 1.0625rem;
    margin: 0;
}

.feature-hero-split {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 24px;
    align-items: stretch;
}

.feature-media-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 280px;
    padding: 28px;
    border-radius: var(--radius-xl);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
        linear-gradient(135deg, rgba(99, 102, 241, 0.34), rgba(15, 23, 42, 0.86));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-lg);
}

.feature-media-kicker {
    margin: 0 0 18px;
    color: rgba(255, 255, 255, 0.76);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.feature-media-card strong {
    color: var(--feature-text);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

.feature-media-card .feature-quote {
    font-size: clamp(2rem, 4.4vw, 3.2rem);
    line-height: 1.05;
    letter-spacing: -0.06em;
    color: #fff7ed;
    text-shadow: 0 12px 32px rgba(120, 53, 15, 0.28);
}

.feature-media-card span {
    display: block;
    margin-top: 12px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 14px;
    line-height: 1.75;
}

.feature-page .optional-badge,
.feature-page .core-badge {
    margin-bottom: 14px;
}

.feature-media-image {
    display: block;
    width: 100%;
    margin-top: 20px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
    object-fit: cover;
}

.feature-media-warm {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
        linear-gradient(135deg, rgba(194, 65, 12, 0.94), rgba(120, 53, 15, 0.94));
}

.feature-media-rose {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
        linear-gradient(135deg, rgba(190, 24, 93, 0.92), rgba(79, 10, 45, 0.94));
}

.feature-media-cyan {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
        linear-gradient(135deg, rgba(8, 145, 178, 0.92), rgba(8, 47, 73, 0.96));
}

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

.feature-block {
    margin-top: 32px;
    padding: 36px;
    border-radius: var(--radius-xl);
    background: var(--feature-surface);
    border: 1px solid var(--feature-border);
    backdrop-filter: blur(20px);
}

.feature-block h2 {
    margin: 0 0 8px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--feature-text);
    letter-spacing: -0.02em;
}

.feature-block > p {
    color: var(--feature-muted);
    margin: 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.feature-card {
    position: relative;
    padding: 28px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.25s ease;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.feature-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card h3 {
    margin: 0 0 8px;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--feature-text);
}

.feature-card > p {
    color: var(--feature-muted);
    font-size: 14px;
    margin: 0;
}

.feature-page .resource-card {
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.feature-page .resource-card h3 {
    color: var(--feature-text);
}

.feature-page .resource-link {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.06);
    color: var(--feature-muted);
}

.feature-page .resource-edit-tip,
.feature-page .resource-admin-hint,
.feature-page .muted {
    color: var(--feature-muted);
}

.resources-page .admin-panel {
    background: var(--feature-bg);
    border-color: var(--feature-border);
}

.resources-page .admin-title-row h3,
.resources-page .admin-field,
.resources-page .admin-desc,
.resources-page .admin-row-head strong {
    color: var(--feature-text);
}

.resources-page .feature-block h2,
.resources-page .resource-card h3,
.resources-page .feature-card h3 {
    color: var(--feature-text);
}

.resources-page .admin-close,
.resources-page .admin-row {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    color: var(--feature-text);
}

.resources-page .admin-field input,
.resources-page .admin-field textarea {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    color: var(--feature-text);
}

.resources-page .admin-backdrop {
    background: rgba(0, 0, 0, 0.85);
}

.contact-id {
    margin: 12px 0;
    font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--feature-text);
    letter-spacing: -0.02em;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 12px 0 0;
}

.feature-list li {
    position: relative;
    padding-left: 20px;
    color: var(--feature-muted);
    font-size: 14px;
}

.feature-list li + li {
    margin-top: 8px;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--feature-accent);
}

.feature-steps {
    padding-left: 24px;
    margin: 12px 0 0;
    color: var(--feature-muted);
    font-size: 15px;
}

.feature-steps li + li {
    margin-top: 10px;
}

.feature-tip {
    margin-top: 20px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    background: rgba(245, 158, 11, 0.08);
    border: 1px dashed rgba(245, 158, 11, 0.3);
    color: #FCD34D;
    font-size: 14px;
}

.feature-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--feature-muted);
    font-size: 13px;
}

@media (max-width: 900px) {
    .feature-main {
        padding-top: calc(var(--topbar-height) + 64px);
    }

    .feature-hero {
        padding: 32px;
    }

    .feature-hero-split {
        grid-template-columns: 1fr;
    }

    .feature-block {
        padding: 28px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .feature-hero {
        padding: 24px;
    }

    .feature-media-card {
        min-height: 220px;
        padding: 24px;
    }

    .feature-block {
        padding: 24px;
    }

    .feature-footer {
        flex-direction: column;
        text-align: center;
    }
}