/* ouyigai13 — Aurora OKX · Deep #0B0F1A + Electric Cyan #00F0B5 + Violet #8B5CF6 */
:root {
    --bg-deep: #0b0f1a;
    --bg-card: #121826;
    --bg-elevated: #1a2235;
    --bg-soft: #f0f4ff;
    --cyan: #00f0b5;
    --cyan-dim: #00c49a;
    --cyan-glow: rgba(0, 240, 181, 0.35);
    --violet: #8b5cf6;
    --violet-glow: rgba(139, 92, 246, 0.4);
    --orange: #f59e0b;
    --android: #3ddc84;
    --ios: #a78bfa;
    --pc: #38bdf8;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    --border: rgba(148, 163, 184, 0.15);
    --border-bright: rgba(0, 240, 181, 0.25);
    --radius: 14px;
    --radius-sm: 10px;
    --shadow-glow: 0 0 40px var(--cyan-glow);
    --header-h: 68px;
    --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.65;
    color: var(--text-dark);
    background: var(--bg-soft);
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--violet); text-decoration: none; transition: color 0.2s, border-color 0.2s; }
a:hover { color: var(--cyan-dim); }

ul { list-style: none; }

.z01a52container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 clamp(16px, 3vw, 24px);
}

/* ===== Header ===== */
.z01a52header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 15, 26, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.z01a52header-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 20px;
    min-height: var(--header-h);
}

.z01a52logo-link {
    font-size: 1.15rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--cyan), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.02em;
}

.z01a52main-nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 4px 20px;
}

.z01a52main-nav a {
    display: block;
    padding: 8px 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

.z01a52main-nav a:hover,
.z01a52main-nav .z01a52this a {
    color: var(--cyan);
}

.z01a52main-nav .z01a52this a { font-weight: 700; }

.z01a52mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    background: rgba(0, 240, 181, 0.08);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px;
}

.z01a52mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--cyan);
    transition: all 0.3s;
}

.z01a52mobile-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.z01a52mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.z01a52mobile-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.z01a52nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 998;
}

.z01a52nav-overlay.active { display: block; }

/* ===== Hero ===== */
.z01a52hero {
    position: relative;
    padding: clamp(3.5rem, 8vw, 5.5rem) 0 clamp(3rem, 6vw, 4.5rem);
    background: linear-gradient(145deg, #050810 0%, #0b0f1a 35%, #151b2e 70%, #1a1040 100%);
    color: #fff;
    overflow: hidden;
}

.z01a52hero-mesh {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 10% 20%, var(--violet-glow), transparent 55%),
        radial-gradient(ellipse 70% 50% at 90% 80%, var(--cyan-glow), transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(245, 158, 11, 0.06), transparent 40%);
    pointer-events: none;
}

.z01a52hero-mesh::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 181, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 181, 0.04) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 85%);
}

.z01a52hero-swiss {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(2rem, 5vw, 3.5rem);
    align-items: center;
}

.z01a52hero-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    margin-bottom: 1rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--cyan);
    background: rgba(0, 240, 181, 0.1);
    border: 1px solid var(--border-bright);
    border-radius: 999px;
}

.z01a52hero-copy h1 {
    font-size: clamp(1.9rem, 4.5vw, 3rem);
    font-weight: 800;
    line-height: 1.12;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 30%, var(--cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.z01a52hero-lead {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 0.75rem;
    line-height: 1.65;
    max-width: 36rem;
}

.z01a52hero-sub {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 1.25rem;
    max-width: 36rem;
}

.z01a52hero-sub strong { color: #fde68a; font-weight: 600; }

.z01a52hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 1.5rem;
}

.z01a52hero-stats span {
    padding: 0.45rem 0.9rem;
    font-size: 0.82rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 999px;
}

.z01a52hero-stats strong {
    color: var(--cyan);
    font-weight: 800;
    margin-right: 0.25rem;
}

.z01a52hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.z01a52btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    cursor: pointer;
}

.z01a52btn-ico {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    flex-shrink: 0;
}

.z01a52ico-android { background: linear-gradient(135deg, #3ddc84, #22c55e); }
.z01a52ico-pc { background: linear-gradient(135deg, #38bdf8, #6366f1); }
.z01a52ico-ios { background: linear-gradient(135deg, #a78bfa, #c4b5fd); }

.z01a52btn-primary {
    background: linear-gradient(135deg, var(--cyan), var(--cyan-dim));
    color: var(--bg-deep);
    box-shadow: 0 8px 28px var(--cyan-glow);
}

.z01a52btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px var(--cyan-glow);
    color: var(--bg-deep);
}

.z01a52btn-secondary {
    background: linear-gradient(135deg, var(--violet), #6366f1);
    color: #fff;
    box-shadow: 0 8px 28px var(--violet-glow);
}

.z01a52btn-secondary:hover {
    transform: translateY(-2px);
    color: #fff;
}

.z01a52btn-outline {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.25);
}

.z01a52btn-outline:hover {
    background: rgba(167, 139, 250, 0.15);
    border-color: var(--ios);
    color: #fff;
    transform: translateY(-2px);
}

.z01a52hero-media {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-bright);
    background: var(--bg-card);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), var(--shadow-glow);
}

.z01a52hero-media-glow {
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle, var(--cyan-glow), transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.z01a52hero-showcase {
    position: relative;
    z-index: 1;
    width: 100%;
}

/* Keyword band */
.z01a52keyword-band {
    padding: 0.85rem 0;
    background: linear-gradient(90deg, var(--bg-deep), #1a1040, var(--bg-deep));
    border-bottom: 1px solid var(--border);
}

.z01a52keyword-band p {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.6;
}

.z01a52keyword-band strong { color: var(--cyan); font-weight: 600; }

/* ===== Section heads ===== */
.z01a52swiss-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
    margin-bottom: 2rem;
}

.z01a52swiss-head span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--bg-deep);
    background: linear-gradient(135deg, var(--cyan), var(--violet));
    border-radius: 8px;
    font-variant-numeric: tabular-nums;
}

.z01a52swiss-head h2 {
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.z01a52swiss-head--light span { color: var(--bg-deep); }
.z01a52swiss-head--light h2 { color: #fff; }

.z01a52features,
.z01a52trading,
.z01a52download,
.z01a52guide,
.z01a52faq,
.z01a52articles {
    padding: clamp(3rem, 6vw, 4.5rem) 0;
}

.z01a52features {
    background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
}

/* Feature grid */
.z01a52swiss-grid {
    display: grid;
    gap: 1.25rem;
}

.z01a52swiss-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.z01a52swiss-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.z01a52swiss-cell {
    padding: 1.75rem 1.5rem;
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    min-width: 0;
}

.z01a52swiss-cell:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(139, 92, 246, 0.12);
    border-color: rgba(139, 92, 246, 0.35);
}

.z01a52swiss-cell h3 {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--violet);
}

.z01a52swiss-cell p {
    font-size: 0.88rem;
    color: #64748b;
    line-height: 1.65;
}

.z01a52swiss-cell--teal {
    background: linear-gradient(145deg, rgba(0, 240, 181, 0.12), rgba(139, 92, 246, 0.08));
    border-color: var(--border-bright);
}

.z01a52swiss-cell--teal h3 {
    color: var(--cyan-dim);
}

/* Trading */
.z01a52trading {
    background: var(--bg-deep);
    color: #fff;
}

.z01a52trading .z01a52swiss-head h2 { color: #fff; }

.z01a52swiss-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.z01a52swiss-row {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 1.5rem;
    padding: 1.5rem 1.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    border-left: 4px solid var(--cyan);
    transition: background 0.2s, border-color 0.2s;
    min-width: 0;
}

.z01a52swiss-row:hover {
    background: var(--bg-elevated);
    border-left-color: var(--violet);
}

.z01a52swiss-row:nth-child(2) { border-left-color: var(--violet); }
.z01a52swiss-row:nth-child(3) { border-left-color: var(--orange); }

.z01a52swiss-label {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding-top: 0.15rem;
}

.z01a52swiss-row p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.65;
}

.z01a52swiss-row p strong { color: #e2e8f0; }

/* Security */
.z01a52security {
    background: linear-gradient(135deg, #1a1040 0%, #4338ca 50%, #312e81 100%);
    color: #fff;
    padding: clamp(3rem, 6vw, 4.5rem) 0;
    position: relative;
    overflow: hidden;
}

.z01a52security::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, var(--cyan-glow), transparent 45%);
    pointer-events: none;
}

.z01a52security .z01a52container { position: relative; z-index: 1; }

.z01a52swiss-cell--dark {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
}

.z01a52swiss-cell--dark:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--cyan);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.z01a52swiss-cell--dark h3 { color: var(--cyan); }
.z01a52swiss-cell--dark p { color: rgba(255, 255, 255, 0.78); }

/* Download */
.z01a52download {
    background: linear-gradient(180deg, var(--bg-soft) 0%, #fff 100%);
}

.z01a52swiss-intro {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.75;
    margin-bottom: 1.75rem;
    max-width: 42rem;
}

.z01a52download-swiss {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.z01a52dl-strip {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.75rem;
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid rgba(148, 163, 184, 0.2);
    color: var(--text-dark);
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.08);
    transition: transform 0.25s, box-shadow 0.25s;
    min-width: 0;
}

.z01a52dl-strip:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(15, 23, 42, 0.14);
    color: var(--text-dark);
}

.z01a52dl-strip--android {
    border-top: 4px solid var(--android);
    background: linear-gradient(180deg, rgba(61, 220, 132, 0.08) 0%, #fff 40%);
}

.z01a52dl-strip--pc {
    border-top: 4px solid var(--pc);
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.08) 0%, #fff 40%);
}

.z01a52dl-strip--ios {
    border-top: 4px solid var(--ios);
    background: linear-gradient(180deg, rgba(167, 139, 250, 0.1) 0%, #fff 40%);
}

.z01a52dl-os {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    border-radius: 14px;
    color: #fff;
}

.z01a52dl-strip--android .z01a52dl-os { background: linear-gradient(135deg, #22c55e, #3ddc84); }
.z01a52dl-strip--pc .z01a52dl-os { background: linear-gradient(135deg, #6366f1, #38bdf8); }
.z01a52dl-strip--ios .z01a52dl-os { background: linear-gradient(135deg, #8b5cf6, #c4b5fd); color: var(--bg-deep); }

.z01a52dl-text strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 0.35rem;
    color: var(--text-dark);
}

.z01a52dl-text small {
    font-size: 0.82rem;
    color: #94a3b8;
}

.z01a52dl-arrow {
    margin-top: auto;
    align-self: flex-end;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--violet);
    transition: transform 0.2s;
}

.z01a52dl-strip:hover .z01a52dl-arrow { transform: translateX(4px); color: var(--cyan-dim); }

/* Guide */
.z01a52guide {
    background: var(--bg-deep);
    color: #fff;
}

.z01a52guide .z01a52swiss-head h2 { color: #fff; }

.z01a52guide-swiss {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.z01a52guide-swiss li {
    padding: 1.5rem 1.25rem 1.5rem 3.5rem;
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    min-width: 0;
    transition: border-color 0.2s, background 0.2s;
}

.z01a52guide-swiss li:hover {
    border-color: var(--border-bright);
    background: var(--bg-elevated);
}

.z01a52guide-swiss li::before {
    counter-increment: guide;
    content: counter(guide, decimal-leading-zero);
    position: absolute;
    left: 1rem;
    top: 1.35rem;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--bg-deep);
    background: linear-gradient(135deg, var(--cyan), var(--violet));
    border-radius: 8px;
}

.z01a52guide-swiss { counter-reset: guide; }

.z01a52guide-swiss li strong { color: var(--cyan); }

/* FAQ */
.z01a52faq { background: #fff; }

.z01a52faq-swiss {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.z01a52faq-row {
    padding: 1.5rem 1.75rem;
    background: var(--bg-soft);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius);
    border-left: 4px solid var(--violet);
    transition: box-shadow 0.2s;
}

.z01a52faq-row:hover {
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.1);
}

.z01a52faq-row h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--violet);
    margin-bottom: 0.5rem;
}

.z01a52faq-row p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.7;
}

/* Articles */
.z01a52articles {
    background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
}

.z01a52article-swiss {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1.25rem;
}

.z01a52article-card {
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    min-width: 0;
}

.z01a52article-card:hover {
    transform: translateY(-4px);
    border-color: var(--cyan);
    box-shadow: 0 16px 40px rgba(0, 240, 181, 0.15);
}

.z01a52article-thumb {
    display: block;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
}

.z01a52article-info { padding: 0.85rem 1rem 1rem; }

.z01a52article-info time {
    display: block;
    font-size: 0.7rem;
    color: #94a3b8;
    margin-bottom: 0.35rem;
    font-variant-numeric: tabular-nums;
}

.z01a52article-info h3 {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.45;
}

.z01a52article-info a { color: var(--text-dark); }
.z01a52article-info a:hover { color: var(--violet); }

/* Footer */
.z01a52footer {
    background: var(--bg-deep);
    color: var(--text-muted);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--border);
}

.z01a52footer-swiss {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: start;
}

.z01a52footer-col h3 {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.z01a52friendly-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.z01a52friendly-link {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
    border: 1px solid var(--border);
}

.z01a52friendly-link:hover {
    color: var(--cyan);
    border-color: var(--border-bright);
}

.z01a52footer-meta {
    text-align: right;
    font-size: 0.85rem;
}

.z01a52footer-meta a { color: var(--cyan); }

.z01a52footer-content {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.z01a52footer-section h3 {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.z01a52footer-bottom {
    font-size: 0.85rem;
    text-align: center;
    padding-top: 1rem;
}

.z01a52footer-bottom a { color: var(--cyan); }

/* ===== Inner pages ===== */
.z01a52breadcrumb {
    padding: 1.25rem 0;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.z01a52breadcrumb a { color: var(--cyan); }
.z01a52breadcrumb-sep { margin: 0 0.5rem; color: rgba(148, 163, 184, 0.4); }

.z01a52breadcrumb-current {
    font-weight: 700;
    color: #fff;
    display: inline;
    font-size: inherit;
}

.z01a52page-main {
    padding: 2rem 0 3rem;
    background: var(--bg-soft);
}

.z01a52page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 1.5rem;
    align-items: start;
}

.z01a52list-items { display: grid; gap: 1rem; }

.z01a52list-item {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 1.25rem;
    padding: 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
    transition: box-shadow 0.2s, border-color 0.2s;
    min-width: 0;
}

.z01a52list-item:hover {
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: 0 12px 32px rgba(139, 92, 246, 0.1);
}

.z01a52list-thumb {
    display: block;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.15);
}

.z01a52list-item-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.z01a52list-item-title a { color: var(--text-dark); }
.z01a52list-item-title a:hover { color: var(--violet); }

.z01a52list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.82rem;
    color: #94a3b8;
    margin-bottom: 0.5rem;
}

.z01a52list-intro {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.65;
}

.z01a52pagebar {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(148, 163, 184, 0.2);
}

.z01a52pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.z01a52pagelist a,
.z01a52pagelist span {
    padding: 0.4rem 0.9rem;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 8px;
    font-size: 0.88rem;
    color: var(--violet);
    background: #fff;
}

.z01a52pagelist a:hover { border-color: var(--cyan); color: var(--cyan-dim); }

.z01a52pagelist .thisclass {
    background: linear-gradient(135deg, var(--cyan), var(--violet));
    border-color: transparent;
    color: var(--bg-deep);
    font-weight: 700;
}

.z01a52sidebar-block {
    border: 1px solid rgba(148, 163, 184, 0.2);
    padding: 1.25rem;
    background: #fff;
    border-radius: var(--radius);
    position: sticky;
    top: calc(var(--header-h) + 12px);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.z01a52sidebar-title {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--violet);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
    border-bottom: 2px solid rgba(0, 240, 181, 0.3);
}

.z01a52sidebar-item {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 0.65rem;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.z01a52sidebar-item:last-child { border-bottom: none; }

.z01a52sidebar-link {
    font-size: 0.82rem;
    color: #475569;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z01a52sidebar-row:hover .z01a52sidebar-link { color: var(--violet); }

.z01a52article-main {
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: #fff;
    padding: clamp(1.5rem, 4vw, 2rem);
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
}

.z01a52article-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.z01a52article-title {
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.z01a52article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.75rem;
    font-size: 0.82rem;
    color: #94a3b8;
}

.z01a52meta-item a { color: var(--violet); }

.z01a52article-body {
    font-size: 1rem;
    line-height: 1.85;
    color: #334155;
}

.z01a52article-body img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    margin: 0.75rem 0;
}

.z01a52article-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    font-size: 0.88rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .z01a52hero-swiss,
    .z01a52page-layout,
    .z01a52footer-swiss { grid-template-columns: 1fr; }

    .z01a52swiss-grid-4,
    .z01a52swiss-grid-3,
    .z01a52guide-swiss { grid-template-columns: repeat(2, minmax(0, 1fr)); }

    .z01a52download-swiss { grid-template-columns: 1fr; }

    .z01a52article-swiss { grid-template-columns: repeat(3, minmax(0, 1fr)); }

    .z01a52footer-meta { text-align: left; }

    .z01a52hero-media { max-width: 480px; margin: 0 auto; }
}

@media (max-width: 768px) {
    .z01a52header-row { grid-template-columns: 1fr auto; }

    .z01a52mobile-menu-btn { display: flex; }

    .z01a52main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(300px, 85vw);
        height: 100vh;
        background: var(--bg-deep);
        border-left: 1px solid var(--border);
        padding: calc(var(--header-h) + 1rem) 1.5rem 1.5rem;
        transition: right 0.3s;
        z-index: 999;
        overflow-y: auto;
    }

    .z01a52main-nav.active { right: 0; }

    .z01a52main-nav ul {
        flex-direction: column;
        gap: 0;
    }

    .z01a52main-nav li { border-bottom: 1px solid var(--border); }

    .z01a52main-nav a {
        padding: 0.9rem 0;
        color: var(--text);
    }

    .z01a52swiss-grid-4,
    .z01a52swiss-grid-3,
    .z01a52guide-swiss,
    .z01a52article-swiss { grid-template-columns: 1fr; }

    .z01a52swiss-row { grid-template-columns: 1fr; gap: 0.5rem; }

    .z01a52list-item { grid-template-columns: 1fr; }

    .z01a52article-nav { grid-template-columns: 1fr; }

    .z01a52hero-actions { flex-direction: column; }

    .z01a52hero-actions .z01a52btn { width: 100%; justify-content: center; }
}