/* OKX Download Portal — Emerald & Slate theme */
:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #14b8a6;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --ink: #0f172a;
    --ink-muted: #475569;
    --surface: #ffffff;
    --surface-alt: #f1f5f9;
    --surface-dark: #0f172a;
    --border: #e2e8f0;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);
    --container: min(1120px, calc(100% - 2.5rem));
    --nav-h: 64px;
    --card-pad: 1.35rem;
    --section-pad-y: 3.25rem;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.25s var(--ease);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    color: var(--ink);
    line-height: 1.65;
    background: var(--surface);
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
}

.z6a56acontainer,
.z6a56asection > .z6a56acontainer {
    min-width: 0;
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

.z6a56acontainer {
    width: var(--container);
    margin-inline: auto;
}

/* —— Header / Nav —— */
.z6a56asite-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.z6a56anavbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--nav-h);
    gap: 0.75rem;
    position: relative;
    min-width: 0;
}

.z6a56anavbar-brand img { height: 42px; width: auto; }

.z6a56anav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem 0.65rem;
    cursor: pointer;
    color: var(--ink);
    font-size: 1.25rem;
    line-height: 1;
}

.z6a56anav-collapse {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    min-width: 0;
}

.z6a56anav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.1rem;
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: 100%;
}

.z6a56anav-link {
    display: block;
    padding: 0.4rem 0.55rem;
    color: var(--ink-muted) !important;
    font-weight: 500;
    font-size: 0.8125rem;
    border-radius: 6px;
    white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}

@media (min-width: 1200px) {
    .z6a56anav-link {
        padding: 0.45rem 0.65rem;
        font-size: 0.875rem;
    }
}

.z6a56anav-link:hover,
.z6a56anav-item.active .z6a56anav-link {
    color: var(--primary) !important;
    background: rgba(13, 148, 136, 0.08);
}

/* —— Buttons —— */
.z6a56abtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.35rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    text-decoration: none;
    line-height: 1.3;
}

.z6a56abtn:active { transform: scale(0.98); }

.z6a56abtn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff !important;
    box-shadow: 0 4px 14px rgba(13, 148, 136, 0.35);
}

.z6a56abtn-primary:hover {
    color: #fff !important;
    box-shadow: 0 8px 24px rgba(13, 148, 136, 0.4);
    transform: translateY(-2px);
}

.z6a56abtn-light {
    background: #fff;
    color: var(--primary-dark) !important;
    border: 1px solid var(--border);
}

.z6a56abtn-light:hover {
    border-color: var(--primary-light);
    color: var(--primary) !important;
}

.z6a56abtn-outline {
    background: transparent;
    color: var(--primary) !important;
    border: 1px solid var(--primary);
}

.z6a56abtn-outline:hover {
    background: var(--primary);
    color: #fff !important;
}

.z6a56abtn-accent {
    background: var(--accent);
    color: var(--ink) !important;
}

.z6a56abtn-accent:hover {
    background: var(--accent-hover);
    color: #fff !important;
}

.z6a56abtn-lg { padding: 0.9rem 1.75rem; font-size: 1rem; }

/* —— Hero —— */
.z6a56ahero-section {
    position: relative;
    padding: 3.5rem 0 4rem;
    background: linear-gradient(160deg, var(--surface-dark) 0%, #134e4a 45%, var(--primary-dark) 100%);
    color: #fff;
    overflow: hidden;
}

.z6a56ahero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 20%, rgba(20, 184, 166, 0.25), transparent),
        radial-gradient(ellipse 50% 40% at 10% 80%, rgba(245, 158, 11, 0.12), transparent);
    pointer-events: none;
}

.z6a56ahero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2rem 2.5rem;
    align-items: center;
}

.z6a56ahero-content {
    min-width: 0;
}

.z6a56ahero-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 1rem;
    color: var(--accent);
}

.z6a56ahero-title {
    font-size: clamp(1.85rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 1rem;
    letter-spacing: -0.02em;
}

.z6a56ahero-subtitle {
    font-size: 1.05rem;
    opacity: 0.9;
    margin: 0 0 1.75rem;
    max-width: 32em;
}

.z6a56ahero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 1.25rem;
}

.z6a56ahero-buttons .z6a56abtn {
    white-space: normal;
    text-align: center;
    max-width: 100%;
}

.z6a56ahero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z6a56ahero-tags li {
    font-size: 0.78rem;
    padding: 0.25rem 0.65rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.85);
}

.z6a56ahero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.z6a56ahero-image {
    max-width: 320px;
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* —— Section common —— */
.z6a56asection {
    padding: var(--section-pad-y) 0;
    overflow: hidden;
}

.z6a56asection-alt { background: var(--surface-alt); }

.z6a56asection-header {
    text-align: center;
    max-width: 620px;
    margin: 0 auto 2rem;
    padding: 0 0.25rem;
}

.z6a56asection-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.z6a56asection-header h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--ink);
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.z6a56asection-desc {
    color: var(--ink-muted);
    margin: 0;
    font-size: 1.02rem;
}

/* —— Intro / About —— */
.z6a56aintro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 1.75rem 2rem;
    align-items: start;
}

.z6a56aintro-grid > * {
    min-width: 0;
}

.z6a56aintro-text p {
    margin: 0 0 1rem;
    color: var(--ink-muted);
}

.z6a56aintro-text p:last-child { margin-bottom: 0; }

.z6a56aintro-cards {
    display: grid;
    gap: 1rem;
}

.z6a56aintro-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.15rem;
    border-left: 3px solid var(--primary);
    box-shadow: var(--shadow);
}

.z6a56aintro-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
    color: var(--ink);
}

.z6a56aintro-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ink-muted);
}

/* —— Features —— */
.z6a56afeatures-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    align-items: stretch;
}

.z6a56afeature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    text-align: center;
    transition: box-shadow var(--transition), border-color var(--transition);
    height: 100%;
    min-width: 0;
}

.z6a56afeature-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.z6a56afeature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.12), rgba(20, 184, 166, 0.06));
    color: var(--primary);
    border-radius: 14px;
}

.z6a56afeature-card h3 {
    margin: 0 0 0.6rem;
    font-size: 1.1rem;
    color: var(--ink);
}

.z6a56afeature-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ink-muted);
    line-height: 1.55;
    word-break: break-word;
}

/* —— Stats —— */
.z6a56astats-section {
    padding: 2.75rem 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
}

.z6a56astats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem 1.25rem;
    text-align: center;
}

.z6a56astat-item {
    padding: 0.5rem 0.75rem;
    min-width: 0;
}

.z6a56astat-number {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 0.35rem;
}

.z6a56astat-label {
    font-size: 0.95rem;
    opacity: 0.88;
}

/* —— Download —— */
.z6a56adownload-section { background: var(--surface-alt); }

.z6a56adownload-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    align-items: stretch;
}

.z6a56adownload-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: var(--card-pad);
    transition: box-shadow var(--transition);
    height: 100%;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.z6a56adownload-card:hover { box-shadow: var(--shadow); }

.z6a56adownload-card-head {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1rem;
    min-width: 0;
}

.z6a56adownload-card-head > div:last-child {
    min-width: 0;
    flex: 1;
}

.z6a56aplatform-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    color: #fff;
}

.z6a56aios-icon { background: linear-gradient(135deg, #0078d4, #005a9e); }
.z6a56aandroid-icon { background: linear-gradient(135deg, #3ddc84, #2a9d5c); }

.z6a56adownload-card h3 {
    margin: 0 0 0.2rem;
    font-size: 1.15rem;
}

.z6a56adownload-card .muted {
    margin: 0;
    font-size: 0.88rem;
    color: var(--ink-muted);
}

.z6a56adownload-info {
    flex: 1;
    background: var(--surface-alt);
    border-radius: var(--radius);
    padding: 0.85rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.z6a56ainfo-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--ink-muted);
    line-height: 1.5;
    word-break: break-word;
}

.z6a56ainfo-item span {
    flex: 1;
    min-width: 0;
}

.z6a56ainfo-item:last-child { margin-bottom: 0; }

.z6a56ainfo-item::before {
    content: "✓";
    color: var(--primary);
    font-weight: 700;
    flex-shrink: 0;
}

.z6a56adownload-action {
    margin-top: auto;
    padding-top: 0.15rem;
}

.z6a56adownload-action .z6a56abtn {
    width: 100%;
    box-sizing: border-box;
}

.z6a56adownload-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.85rem;
    margin-top: 2rem;
}

.z6a56astep-card {
    text-align: center;
    padding: 1rem 0.75rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    min-width: 0;
    height: 100%;
}

.z6a56astep-num {
    width: 36px;
    height: 36px;
    margin: 0 auto 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    border-radius: 50%;
    font-size: 0.9rem;
}

.z6a56astep-card h4 {
    margin: 0 0 0.35rem;
    font-size: 0.95rem;
}

.z6a56astep-card p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--ink-muted);
}

/* —— Register CTA —— */
.z6a56aregister-banner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.5rem 2rem;
    align-items: center;
    background: linear-gradient(135deg, var(--ink) 0%, #1e293b 100%);
    color: #fff;
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
    margin-top: 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.z6a56aregister-banner > div:first-child {
    min-width: 0;
}

.z6a56aregister-banner h2 {
    margin: 0 0 0.75rem;
    font-size: 1.5rem;
}

.z6a56aregister-banner p {
    margin: 0;
    opacity: 0.88;
    max-width: 36em;
}

.z6a56aregister-actions {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    flex-shrink: 0;
    min-width: 10.5rem;
    max-width: 100%;
}

.z6a56aregister-actions .z6a56abtn {
    width: 100%;
    white-space: normal;
}

/* —— Security —— */
.z6a56asecurity-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    align-items: stretch;
}

.z6a56asecurity-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    text-align: center;
    height: 100%;
    min-width: 0;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.z6a56asecurity-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.z6a56asecurity-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 50%;
}

.z6a56asecurity-card h3 {
    margin: 0 0 0.85rem;
    font-size: 1rem;
}

.z6a56asecurity-features {
    text-align: left;
    background: var(--surface-alt);
    border-radius: 8px;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--border);
}

.z6a56afeature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    margin-bottom: 0.45rem;
    font-size: 0.84rem;
    color: var(--ink-muted);
    line-height: 1.45;
    word-break: break-word;
}

.z6a56afeature-item span {
    flex: 1;
    min-width: 0;
}

.z6a56afeature-item::before {
    content: "●";
    color: var(--primary);
    font-size: 0.5rem;
    margin-top: 0.45rem;
    flex-shrink: 0;
}

.z6a56afeature-item:last-child {
    margin-bottom: 0;
}

.z6a56acert-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 2rem;
    align-items: stretch;
}

.z6a56acertificate-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.15rem 1rem;
    text-align: center;
    border: 1px solid var(--border);
    min-width: 0;
    height: 100%;
}

.z6a56acertificate-icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.z6a56acertificate-card h4 {
    margin: 0 0 0.4rem;
    font-size: 1rem;
    color: var(--ink);
}

.z6a56acertificate-card p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--ink-muted);
}

/* —— FAQ —— */
.z6a56afaq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
    align-items: stretch;
}

.z6a56afaq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.15rem 1.25rem;
    min-width: 0;
    height: 100%;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.z6a56afaq-item:hover { border-color: var(--primary-light); }

.z6a56afaq-item h3 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    color: var(--ink);
}

.z6a56afaq-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ink-muted);
    line-height: 1.55;
    word-break: break-word;
}

/* —— Articles —— */
.z6a56aarticle-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.z6a56aarticle-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.z6a56aarticles-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.85rem;
    align-items: stretch;
}

@media (min-width: 1200px) {
    .z6a56aarticles-grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }
}

.z6a56aarticle-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow var(--transition), border-color var(--transition);
    height: 100%;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.z6a56aarticle-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.z6a56athumb-home {
    width: 100%;
    height: 110px;
    object-fit: cover;
}

.z6a56aarticle-card-body {
    padding: 0.75rem 0.85rem 0.9rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.z6a56aarticle-meta {
    font-size: 0.75rem;
    color: var(--ink-muted);
    margin-bottom: 0.4rem;
}

.z6a56aarticle-card h3 {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.z6a56aarticle-card h3 a {
    color: var(--ink);
    text-decoration: none;
}

.z6a56aarticle-card h3 a:hover { color: var(--primary); }

/* —— Footer —— */
.z6a56afooter {
    background: var(--surface-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 3.5rem 0 1.5rem;
}

.z6a56afooter-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
    gap: 1.5rem 1.75rem;
    margin-bottom: 1.75rem;
}

.z6a56afooter-brand img { height: 40px; margin-bottom: 1rem; }

.z6a56afooter-brand p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 280px;
}

.z6a56afooter-title {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0 0 1rem;
}

.z6a56afooter-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.z6a56afooter-links li { margin-bottom: 0.5rem; }

.z6a56afooter-link {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.9rem;
}

.z6a56afooter-link:hover { color: var(--primary-light); }

.z6a56afriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z6a56afriend-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.88rem;
}

.z6a56afriend-links a:hover { color: var(--accent); }

.z6a56afooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
}

.z6a56afooter-bottom p { margin: 0.35rem 0; }

.z6a56afooter-bottom a {
    color: rgba(255, 255, 255, 0.7);
}

.z6a56afooter-bottom a:hover { color: var(--accent); }

/* —— Inner pages (list / article) —— */
.z6a56apage-main {
    padding: 2.5rem 0 4rem;
    background: var(--surface-alt);
    min-height: 50vh;
}

.z6a56apage-title {
    margin: 0 0 0.35rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.z6a56apage-desc {
    margin: 0 0 1.75rem;
    color: var(--ink-muted);
}

.z6a56acontent-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 300px);
    gap: 1.25rem;
    align-items: start;
}

.z6a56acontent-layout > * {
    min-width: 0;
}

.z6a56acard {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    box-shadow: none;
    min-width: 0;
    overflow: hidden;
}

.z6a56acard + .z6a56acard { margin-top: 1.25rem; }

.z6a56asidebar-title {
    margin: 0 0 1rem;
    font-size: 1.05rem;
    font-weight: 700;
}

.z6a56asidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.z6a56asidebar-list li {
    margin-bottom: 0.55rem;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid var(--border);
}

.z6a56asidebar-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.z6a56asidebar-hot {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 0.85rem;
    align-items: flex-start;
    min-width: 0;
}

.z6a56asidebar-hot:last-child { margin-bottom: 0; }

.z6a56asidebar-hot > a:last-child {
    flex: 1;
    min-width: 0;
    font-size: 0.9rem;
    line-height: 1.45;
    word-break: break-word;
}

.z6a56athumb-side {
    width: 72px;
    height: 54px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.z6a56athumb-list,
.z6a56athumb-related {
    width: 100%;
    height: 84px;
    object-fit: cover;
    border-radius: 8px;
}

.z6a56athumb-cover {
    max-width: 100%;
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius);
}

.listbox .e2 {
    list-style: none;
    margin: 0;
    padding: 0;
}

.listbox .e2 li {
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.listbox .e2 li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.z6a56alist-row {
    display: grid;
    grid-template-columns: minmax(72px, 100px) minmax(0, 1fr);
    gap: 0.85rem;
    align-items: start;
}

.z6a56alist-row p {
    word-break: break-word;
    font-size: 0.9rem;
    line-height: 1.5;
}

.z6a56alist-meta {
    font-size: 0.8rem;
    color: var(--ink-muted);
    margin-bottom: 0.35rem;
}

.z6a56alist-row h2 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.z6a56alist-row h2 a { color: var(--ink); }
.z6a56alist-row h2 a:hover { color: var(--primary); }

.z6a56aarticle-content {
    line-height: 1.8;
    color: var(--ink-muted);
    overflow-wrap: break-word;
    word-break: break-word;
}

.z6a56aarticle-content img,
.z6a56aarticle-content table,
.z6a56aarticle-content pre,
.z6a56aarticle-content iframe {
    max-width: 100%;
    height: auto;
}

.z6a56aarticle-content table {
    display: block;
    overflow-x: auto;
}

.z6a56ameta-tags {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.z6a56atagitem a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: var(--surface-alt);
    border-radius: 6px;
    font-size: 0.85rem;
}

.pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 0;
}

.pagebar .pagelist li { display: inline-flex; }

.z6a56arelated-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.z6a56arelated-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.z6a56aarticle-header-block {
    margin-bottom: 1.25rem;
}

.z6a56aarticle-header-block .z6a56alist-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
}

.z6a56aarticle-cover {
    margin-bottom: 1.25rem;
}

.z6a56adiyfield {
    margin-top: 1.25rem;
}

.z6a56aprenext {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.z6a56arelated-title {
    font-weight: 600;
    color: var(--ink);
}

.z6a56arelated-desc {
    margin: 0.35rem 0 0;
    color: var(--ink-muted);
    font-size: 0.9rem;
}

.z6a56afooter-links-block {
    margin-bottom: 1.5rem;
}

/* —— Responsive —— */
@media (max-width: 1024px) {
    .z6a56aarticles-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .z6a56afeatures-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .z6a56asecurity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 991px) {
    .z6a56anav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        flex-shrink: 0;
    }

    .z6a56anav-collapse {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        padding: 0.65rem 0.85rem 0.85rem;
        max-height: min(70vh, calc(100dvh - var(--nav-h) - 1rem));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    .z6a56anav-collapse.is-open { display: block; }

    /* 保持顶部吸附，便于移动端浏览 */
    .z6a56asite-header {
        position: sticky;
        top: 0;
    }

    .z6a56anavbar-brand img {
        height: 36px;
    }

    .z6a56anav {
        flex-direction: column;
        align-items: stretch;
        gap: 0.15rem;
    }

    .z6a56anav-link {
        padding: 0.7rem 0.85rem !important;
        font-size: 0.9375rem !important;
        white-space: normal;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .z6a56ahero-grid,
    .z6a56aintro-grid,
    .z6a56acontent-layout {
        grid-template-columns: 1fr;
    }

    .z6a56ahero-visual {
        order: -1;
        margin-bottom: 0.25rem;
    }

    .z6a56ahero-content {
        text-align: center;
    }

    .z6a56ahero-subtitle {
        max-width: none;
        margin-left: auto;
        margin-right: auto;
    }

    .z6a56ahero-buttons {
        justify-content: center;
        width: 100%;
        max-width: 22rem;
        margin-left: auto;
        margin-right: auto;
    }

    .z6a56ahero-tags {
        justify-content: center;
    }

    .z6a56ahero-image {
        max-width: min(240px, 72vw);
        margin: 0 auto;
    }

    .z6a56astats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.85rem;
    }

    .z6a56adownload-steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .z6a56aregister-banner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .z6a56aregister-banner p {
        max-width: none;
    }

    .z6a56aregister-actions {
        align-items: stretch;
        width: 100%;
        min-width: 0;
    }

    .z6a56afooter-grid {
        grid-template-columns: 1fr 1fr;
    }

    .z6a56acontent-layout aside {
        order: 2;
    }
}

@media (max-width: 767px) {
    :root {
        --section-pad-y: 2.25rem;
        --card-pad: 1.1rem;
        --nav-h: 56px;
    }

    html {
        font-size: 15px;
    }

    .z6a56acontainer {
        width: min(1120px, calc(100% - 1.5rem));
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }

    .z6a56asection {
        padding: var(--section-pad-y) 0;
    }

    .z6a56ahero-section {
        padding: 2rem 0 2.25rem;
    }

    .z6a56asection-header {
        margin-bottom: 1.35rem;
    }

    .z6a56asection-header h2 {
        font-size: 1.35rem;
    }

    .z6a56asection-desc {
        font-size: 0.95rem;
    }

    .z6a56ahero-title {
        font-size: 1.65rem;
    }

    .z6a56ahero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.25rem;
    }

    .z6a56ahero-buttons {
        flex-direction: column;
        gap: 0.55rem;
        width: 100%;
        max-width: none;
    }

    .z6a56ahero-buttons .z6a56abtn {
        width: 100%;
        padding: 0.8rem 1rem;
        font-size: 0.9375rem;
    }

    .z6a56abtn-lg {
        padding: 0.8rem 1rem;
        font-size: 0.9375rem;
    }

    .z6a56afeatures-grid,
    .z6a56adownload-grid,
    .z6a56afaq-grid,
    .z6a56acert-grid,
    .z6a56asecurity-grid {
        grid-template-columns: 1fr;
    }

    .z6a56aarticles-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .z6a56aarticle-header {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .z6a56aarticle-header .z6a56abtn {
        width: 100%;
        box-sizing: border-box;
    }

    .z6a56aarticle-card {
        flex-direction: row;
        align-items: stretch;
    }

    .z6a56aarticle-card > a:first-child {
        flex: 0 0 108px;
        max-width: 108px;
        display: flex;
        align-self: stretch;
    }

    .z6a56athumb-home {
        width: 100%;
        height: 100%;
        min-height: 88px;
        object-fit: cover;
    }

    .z6a56aarticle-card-body {
        flex: 1;
        min-width: 0;
        padding: 0.7rem 0.85rem;
    }

    .z6a56adownload-card-head {
        flex-direction: row;
        align-items: center;
        text-align: left;
    }

    .z6a56aregister-banner {
        text-align: left;
        padding: 1.35rem 1.15rem;
    }

    .z6a56aregister-banner h2 {
        font-size: 1.25rem;
    }

    .z6a56aregister-actions .z6a56abtn {
        width: 100%;
    }

    .z6a56afooter {
        padding: 2.5rem 0 1.25rem;
        padding-bottom: max(1.25rem, env(safe-area-inset-bottom));
    }

    .z6a56afooter-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.25rem;
    }

    .z6a56afooter-brand img {
        margin-left: auto;
        margin-right: auto;
    }

    .z6a56afooter-brand p {
        max-width: none;
        margin: 0 auto;
    }

    .z6a56afriend-links {
        justify-content: center;
    }

    .z6a56afooter-bottom p {
        line-height: 1.7;
        padding: 0 0.25rem;
    }

    .z6a56apage-main {
        padding: 1.5rem 0 2.5rem;
    }

    .z6a56apage-title {
        font-size: 1.25rem;
    }

    .z6a56acard {
        padding: 1rem;
    }

    .z6a56alist-row,
    .z6a56arelated-row {
        grid-template-columns: 88px minmax(0, 1fr);
        gap: 0.75rem;
    }

    .z6a56alist-row h2 {
        font-size: 1rem;
    }

    .z6a56athumb-list,
    .z6a56athumb-related {
        height: 68px;
    }

    .z6a56athumb-cover {
        height: auto;
        min-height: 160px;
        max-height: 220px;
    }

    .z6a56asidebar-hot {
        flex-direction: row;
    }

    .pagebar .pagelist {
        justify-content: center;
        gap: 0.35rem;
    }
}

@media (max-width: 575px) {
    .z6a56acontainer {
        width: min(1120px, calc(100% - 1rem));
    }

    .z6a56astats-grid,
    .z6a56adownload-steps {
        grid-template-columns: 1fr;
    }

    .z6a56astat-number {
        font-size: 1.65rem;
    }

    .z6a56aintro-text p {
        font-size: 0.9375rem;
    }

    .z6a56aregister-banner {
        padding: 1.15rem 1rem;
    }

    .z6a56anav-link {
        font-size: 0.9rem !important;
    }

    .z6a56adownload-card-head {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .z6a56aplatform-icon {
        width: 46px;
        height: 46px;
        font-size: 1.2rem;
    }

    .z6a56aarticle-card > a:first-child {
        flex: 0 0 96px;
        max-width: 96px;
    }

    .z6a56athumb-home {
        width: 96px;
        min-height: 80px;
    }

    .z6a56alist-row,
    .z6a56arelated-row {
        grid-template-columns: 76px minmax(0, 1fr);
    }

    .z6a56athumb-list,
    .z6a56athumb-related {
        height: 60px;
    }
}

/* 触控设备：取消悬停位移，避免误触跳动 */
@media (hover: none) and (pointer: coarse) {
    .z6a56abtn-primary:hover,
    .z6a56abtn-primary:active {
        transform: none;
    }
}

/* 大屏导航过多时保持单行紧凑，避免挤出容器 */
@media (min-width: 992px) and (max-width: 1199px) {
    .z6a56anav-link {
        padding: 0.35rem 0.45rem;
        font-size: 0.78rem;
    }
}