/* OKX / 欧易下载官网 — 全新视觉（青碧 + 靛蓝） */
:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #5eead4;
    --secondary: #312e81;
    --secondary-light: #4f46e5;
    --accent: #f59e0b;
    --accent-soft: #fef3c7;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 2px 12px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 12px 32px rgba(13, 148, 136, 0.1);
    --container-max: 1140px;
    --section-pad-y: 3.25rem;
    --card-pad: 1.35rem;
    --card-gap: 1.15rem;
    --nav-h: 72px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.28s 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(--text);
    line-height: 1.65;
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

.zad8f5container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: clamp(16px, 3.5vw, 28px);
    padding-right: clamp(16px, 3.5vw, 28px);
}

/* —— 导航 —— */
.zad8f5navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    min-height: var(--nav-h);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}

.zad8f5navbar .zad8f5container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    min-height: var(--nav-h);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.zad8f5navbar-brand img { height: 42px; width: auto; }

.zad8f5nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
}

.zad8f5nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.zad8f5navbar-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.1rem;
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: 100%;
}

.zad8f5nav-link {
    display: block;
    padding: 0.45rem 0.7rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text) !important;
    border-radius: 8px;
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}

.zad8f5nav-link:hover,
.zad8f5nav-item.active .zad8f5nav-link {
    color: var(--primary) !important;
    background: rgba(13, 148, 136, 0.08);
}

/* —— 按钮 —— */
.zad8f5btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.75rem 1.35rem;
    font-size: 0.95rem;
    font-weight: 600;
    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;
}

.zad8f5btn-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);
}

.zad8f5btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(13, 148, 136, 0.4);
    color: #fff !important;
}

.zad8f5btn-outline {
    background: transparent;
    color: var(--primary-dark) !important;
    border: 2px solid var(--primary);
}

.zad8f5btn-outline:hover {
    background: var(--primary);
    color: #fff !important;
}

.zad8f5btn-light {
    background: #fff;
    color: var(--secondary) !important;
    box-shadow: var(--shadow);
}

.zad8f5btn-light:hover { transform: translateY(-2px); color: var(--primary-dark) !important; }

.zad8f5btn-ghost {
    background: transparent;
    color: #fff !important;
    border: 2px solid rgba(255, 255, 255, 0.45);
}

.zad8f5btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff !important;
}

.zad8f5btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

/* —— Hero —— */
.zad8f5hero-section {
    position: relative;
    padding: 3.5rem 0 4rem;
    background: linear-gradient(155deg, var(--secondary) 0%, #1e1b4b 45%, var(--primary-dark) 100%);
    color: #fff;
    overflow: hidden;
}

.zad8f5hero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 90% 20%, rgba(94, 234, 212, 0.15), transparent),
        radial-gradient(ellipse 50% 40% at 10% 80%, rgba(245, 158, 11, 0.08), transparent);
    pointer-events: none;
}

.zad8f5hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 2.5rem);
    align-items: center;
}

.zad8f5hero-badge {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.zad8f5hero-title {
    font-size: clamp(1.85rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 1rem;
}

.zad8f5hero-subtitle {
    font-size: 1.05rem;
    opacity: 0.92;
    margin: 0 0 1.75rem;
    max-width: 32em;
}

.zad8f5hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.zad8f5hero-content,
.zad8f5hero-visual {
    min-width: 0;
}

.zad8f5hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.zad8f5hero-image {
    max-width: min(300px, 100%);
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
    border: 2px solid rgba(255, 255, 255, 0.18);
}

/* —— 信任条 —— */
.zad8f5trust-bar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

.zad8f5trust-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem 1rem;
    text-align: center;
}

.zad8f5trust-item {
    min-width: 0;
    padding: 0.35rem 0.25rem;
}

.zad8f5trust-item strong {
    display: block;
    font-size: 1.35rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.zad8f5trust-item span {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* —— 区块通用 —— */
.zad8f5section {
    padding: var(--section-pad-y) 0;
}

.zad8f5section-alt { background: var(--bg-card); }

.zad8f5section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 2rem;
    padding: 0 0.25rem;
}

.zad8f5section-header--spaced {
    margin-top: 2.25rem;
    margin-bottom: 1.5rem;
}

.zad8f5section-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;
}

.zad8f5section-header h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin: 0 0 0.75rem;
    color: var(--text);
}

.zad8f5section-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 1.02rem;
}

/* —— 简介 —— */
.zad8f5intro-block {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(1.25rem, 3vw, 2rem);
    align-items: start;
}

.zad8f5intro-text {
    min-width: 0;
}

.zad8f5intro-text p {
    margin: 0 0 1rem;
    color: var(--text-muted);
    overflow-wrap: break-word;
}

.zad8f5intro-text p:last-child { margin-bottom: 0; }

.zad8f5intro-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.zad8f5intro-card {
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.06), rgba(49, 46, 129, 0.04));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
}

.zad8f5intro-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
    color: var(--secondary);
}

.zad8f5intro-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* —— 特色网格 —— */
.zad8f5features-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--card-gap);
    align-items: stretch;
}

.zad8f5feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.zad8f5feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(13, 148, 136, 0.22);
}

@media (prefers-reduced-motion: reduce) {
    .zad8f5feature-card:hover { transform: none; }
    .zad8f5btn-primary:hover,
    .zad8f5btn-light:hover { transform: none; }
}

.zad8f5feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.zad8f5feature-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}

.zad8f5feature-card p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-muted);
    flex: 1;
    overflow-wrap: break-word;
    word-break: break-word;
}

/* —— 统计 —— */
.zad8f5stats-section {
    padding: 2.75rem 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
    color: #fff;
}

.zad8f5stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem 1.25rem;
    text-align: center;
}

.zad8f5stat-item {
    min-width: 0;
    padding: 0.25rem;
}

.zad8f5stat-number {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.zad8f5stat-label {
    font-size: 0.95rem;
    opacity: 0.88;
}

/* —— 下载 —— */
.zad8f5download-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--card-gap);
    align-items: stretch;
}

.zad8f5download-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.zad8f5download-card .zad8f5btn {
    width: 100%;
    margin-top: auto;
}

.zad8f5download-card:hover { box-shadow: var(--shadow-lg); }

.zad8f5download-card-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.zad8f5platform-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    flex-shrink: 0;
}

.zad8f5platform-icon--win { background: linear-gradient(135deg, #0078d4, #005a9e); }
.zad8f5platform-icon--android { background: linear-gradient(135deg, #3ddc84, #2a9d5c); }
.zad8f5platform-icon--ios { background: linear-gradient(135deg, #555, #1a1a1a); }

.zad8f5download-card-head > div {
    min-width: 0;
    flex: 1;
}

.zad8f5download-card h3 {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
    overflow-wrap: break-word;
}

.zad8f5download-card .meta {
    margin: 0.2rem 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.zad8f5download-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    flex: 1;
}

.zad8f5download-list li {
    position: relative;
    padding-left: 1.35rem;
    margin-bottom: 0.55rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.zad8f5download-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* —— 步骤 —— */
.zad8f5steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--card-gap);
    counter-reset: step;
    align-items: stretch;
}

.zad8f5step-item {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad) 1rem;
    text-align: center;
    min-width: 0;
    height: 100%;
}

.zad8f5step-item::before {
    counter-increment: step;
    content: counter(step);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 auto 0.85rem;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    border-radius: 50%;
    font-size: 0.95rem;
}

.zad8f5step-item h4 {
    margin: 0 0 0.4rem;
    font-size: 0.98rem;
}

.zad8f5step-item p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    overflow-wrap: break-word;
}

/* —— 安全 —— */
.zad8f5security-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--card-gap);
    align-items: stretch;
}

.zad8f5security-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.zad8f5security-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: rgba(13, 148, 136, 0.1);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.zad8f5security-card h3 {
    margin: 0 0 0.75rem;
    font-size: 1rem;
}

.zad8f5security-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.zad8f5security-card li {
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--border);
}

.zad8f5security-card li:last-child { border-bottom: none; }

.zad8f5certs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--card-gap);
    margin-top: 2rem;
    align-items: stretch;
}

.zad8f5cert-card {
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.05), rgba(49, 46, 129, 0.03));
    border-radius: var(--radius);
    padding: var(--card-pad);
    text-align: center;
    border: 1px dashed var(--border);
    min-width: 0;
    height: 100%;
}

.zad8f5cert-card h4 { margin: 0.5rem 0 0.35rem; font-size: 0.95rem; }
.zad8f5cert-card p { margin: 0; font-size: 0.82rem; color: var(--text-muted); }

/* —— FAQ —— */
.zad8f5faq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--card-gap);
    align-items: stretch;
}

.zad8f5faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    min-width: 0;
    height: 100%;
}

.zad8f5faq-item h3 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    color: var(--secondary);
    overflow-wrap: break-word;
}

.zad8f5faq-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    overflow-wrap: break-word;
}

/* —— 文章 —— */
.zad8f5article-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.zad8f5article-header h2 { margin: 0; font-size: 1.5rem; }

.zad8f5articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
    gap: var(--card-gap);
    align-items: stretch;
}

.zad8f5article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    min-width: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.zad8f5article-card:hover { box-shadow: var(--shadow); }

.zad8f5thumb-home {
    width: 100%;
    height: 110px;
    object-fit: cover;
    flex-shrink: 0;
}

.zad8f5article-card-body {
    padding: 0.75rem 0.9rem 0.9rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.zad8f5article-meta {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.zad8f5article-card h3 {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.4;
    font-weight: 600;
}

.zad8f5article-card h3 a {
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.zad8f5article-card h3 a:hover { color: var(--primary); }

/* —— 页脚 —— */
.zad8f5footer {
    background: var(--secondary);
    color: rgba(255, 255, 255, 0.85);
    padding: 3.5rem 0 1.5rem;
}

.zad8f5footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.zad8f5footer-brand img { height: 40px; margin-bottom: 0.75rem; }

.zad8f5footer p { font-size: 0.9rem; opacity: 0.8; margin: 0; }

.zad8f5footer-title {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0 0 1rem;
}

.zad8f5footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zad8f5footer-links li { margin-bottom: 0.5rem; }

.zad8f5footer-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.88rem;
}

.zad8f5footer-link:hover { color: var(--primary-light); }

.zad8f5friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
}

.zad8f5friend-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.85rem;
}

.zad8f5footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
}

.zad8f5footer-bottom p { margin: 0.35rem 0; }

.zad8f5footer-bottom a { color: var(--primary-light); }

/* —— 列表页 / 内页 —— */
.zad8f5page-main {
    padding: 2.5rem 0 4rem;
}

.zad8f5page-title {
    margin: 0 0 0.35rem;
    font-size: 1.5rem;
}

.zad8f5page-desc {
    color: var(--text-muted);
    margin: 0 0 1.75rem;
    font-size: 0.95rem;
}

.zad8f5layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 300px);
    gap: clamp(1.25rem, 3vw, 2rem);
    align-items: start;
}

.zad8f5card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--card-pad);
    box-shadow: var(--shadow);
    min-width: 0;
    overflow: hidden;
}

.zad8f5card h3 {
    margin: 0 0 1rem;
    font-size: 1.05rem;
}

.zad8f5list-unstyled {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zad8f5list-item {
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.zad8f5list-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.zad8f5list-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1rem;
    align-items: start;
}

.zad8f5thumb-list,
.zad8f5thumb-related {
    width: 100%;
    height: 84px;
    object-fit: cover;
    border-radius: 8px;
}

.zad8f5list-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.zad8f5list-item h2 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.zad8f5list-item h2 a { color: var(--text); }
.zad8f5list-item h2 a:hover { color: var(--primary); }

.zad8f5list-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.zad8f5sidebar-item {
    margin-bottom: 0.65rem;
}

.zad8f5sidebar-item a { color: var(--text); font-size: 0.92rem; }
.zad8f5sidebar-item a:hover { color: var(--primary); }

.zad8f5sidebar-hot {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 0.85rem;
    align-items: flex-start;
}

.zad8f5thumb-side {
    width: 72px;
    height: 54px;
    object-fit: cover;
    border-radius: 6px;
    flex-shrink: 0;
}

.zad8f5article-content {
    line-height: 1.8;
    font-size: 1rem;
}

.zad8f5article-content img { max-width: 100%; height: auto; margin: 1rem 0; }

.zad8f5thumb-cover {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
}

.zad8f5article-meta-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.zad8f5meta-tags {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.zad8f5tagitem a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: rgba(13, 148, 136, 0.08);
    border-radius: 6px;
    font-size: 0.82rem;
}

.zad8f5prenext {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .zad8f5prenext { flex-direction: row; justify-content: space-between; }
}

/* 分页 */
.pagebar .pagelist,
.zzpages .pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

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

.pagebar .pagelist a,
.pagebar .pagelist span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.25rem;
    min-height: 2.25rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.88rem;
}

/* —— 响应式 —— */
@media (max-width: 1100px) {
    .zad8f5articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 1024px) {
    .zad8f5features-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zad8f5download-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zad8f5download-grid .zad8f5download-card:last-child {
        grid-column: 1 / -1;
    }
}

/* 平板及以下 */
@media (max-width: 991px) {
    .zad8f5nav-toggle {
        display: flex;
        flex-shrink: 0;
    }

    .zad8f5navbar .zad8f5container {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        align-items: center;
        gap: 0;
        padding-top: 0.65rem;
        padding-bottom: 0;
        min-height: auto;
    }

    .zad8f5navbar-brand {
        grid-column: 1;
        grid-row: 1;
    }

    .zad8f5navbar-brand img {
        height: 36px;
    }

    .zad8f5nav-toggle {
        grid-column: 2;
        grid-row: 1;
    }

    .zad8f5navbar-collapse {
        grid-column: 1 / -1;
        grid-row: 2;
        position: static;
        width: 100%;
        margin-left: calc(-1 * clamp(16px, 3.5vw, 28px));
        margin-right: calc(-1 * clamp(16px, 3.5vw, 28px));
        padding-left: clamp(16px, 3.5vw, 28px);
        padding-right: clamp(16px, 3.5vw, 28px);
        background: #fff;
        border-top: 1px solid transparent;
        box-shadow: none;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: max-height 0.32s var(--ease), opacity 0.2s var(--ease), visibility 0.32s;
    }

    .zad8f5navbar-collapse.is-open {
        max-height: min(75vh, 520px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        opacity: 1;
        visibility: visible;
        border-top-color: var(--border);
        box-shadow: inset 0 8px 12px -10px rgba(15, 23, 42, 0.08);
        padding-bottom: 0.5rem;
    }

    .zad8f5navbar-nav {
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        flex-wrap: nowrap;
        padding: 0.5rem 0 0.75rem;
        gap: 0.15rem;
    }

    .zad8f5nav-link {
        padding: 0.7rem 0.85rem !important;
        font-size: 0.9rem;
        white-space: normal;
        line-height: 1.4;
        max-width: none;
        text-overflow: clip;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .zad8f5hero-section {
        padding: 2.25rem 0 2.75rem;
    }

    .zad8f5hero-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .zad8f5hero-content {
        text-align: center;
    }

    .zad8f5hero-visual { order: -1; }
    .zad8f5hero-image { max-width: min(240px, 72vw); margin: 0 auto; }
    .zad8f5hero-subtitle {
        margin-left: auto;
        margin-right: auto;
        font-size: 0.95rem;
        text-align: left;
    }

    .zad8f5hero-buttons {
        justify-content: stretch;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 360px;
        margin-left: auto;
        margin-right: auto;
    }

    .zad8f5hero-buttons .zad8f5btn {
        width: 100%;
        min-height: 46px;
    }

    .zad8f5hero-badge {
        font-size: 0.72rem;
        max-width: 100%;
        line-height: 1.4;
    }

    .zad8f5intro-block { grid-template-columns: 1fr; }
    .zad8f5intro-cards { margin-top: 0.25rem; }

    .zad8f5stats-grid,
    .zad8f5trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

    .zad8f5security-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zad8f5steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zad8f5layout { grid-template-columns: 1fr; }
    .zad8f5footer-grid { grid-template-columns: 1fr 1fr; }
}

/* 手机 */
@media (max-width: 767px) {
    :root {
        --section-pad-y: 2.5rem;
        --card-pad: 1.1rem;
        --card-gap: 0.85rem;
        --nav-h: 60px;
    }

    .zad8f5section { padding: var(--section-pad-y) 0; }
    .zad8f5section-header { margin-bottom: 1.5rem; }
    .zad8f5section-header h2 { font-size: 1.35rem; }
    .zad8f5section-header p { font-size: 0.92rem; }

    .zad8f5features-grid,
    .zad8f5faq-grid,
    .zad8f5certs,
    .zad8f5security-grid,
    .zad8f5download-grid { grid-template-columns: minmax(0, 1fr); }

    .zad8f5download-grid .zad8f5download-card:last-child { grid-column: auto; }

    .zad8f5articles-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 0.85rem;
    }

    .zad8f5article-card {
        display: grid;
        grid-template-columns: 108px 1fr;
        align-items: stretch;
    }

    .zad8f5article-card > a:first-child {
        display: block;
        height: 100%;
    }

    .zad8f5thumb-home {
        height: 100%;
        min-height: 88px;
    }

    .zad8f5article-card-body {
        padding: 0.65rem 0.75rem;
        justify-content: center;
    }

    .zad8f5article-card h3 { font-size: 0.92rem; }

    .zad8f5article-header {
        flex-direction: column;
        align-items: stretch;
    }

    .zad8f5article-header .zad8f5btn {
        width: 100%;
        justify-content: center;
    }

    .zad8f5stats-section { padding: 2rem 0; }
    .zad8f5stats-grid,
    .zad8f5trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; }

    .zad8f5stat-number { font-size: 1.5rem; }
    .zad8f5trust-item strong { font-size: 1.15rem; }

    .zad8f5steps { grid-template-columns: minmax(0, 1fr); }

    .zad8f5download-card-head {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .zad8f5page-main { padding: 1.75rem 0 2.5rem; }
    .zad8f5page-title { font-size: 1.25rem; }
    .zad8f5list-row { grid-template-columns: 88px 1fr; gap: 0.75rem; }
    .zad8f5thumb-list,
    .zad8f5thumb-related { height: 76px; }

    .zad8f5card { padding: var(--card-pad); }
    .zad8f5sidebar-hot {
        flex-direction: row;
        align-items: center;
    }

    .zad8f5sidebar-hot > a:last-child {
        flex: 1;
        min-width: 0;
        line-height: 1.4;
        font-size: 0.88rem;
    }

    .zad8f5footer {
        padding: 2.5rem 0 1.25rem;
    }

    .zad8f5footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }

    .zad8f5friend-links {
        justify-content: center;
    }

    .zad8f5article-content {
        font-size: 0.95rem;
        overflow-wrap: break-word;
    }

    .zad8f5article-content table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .zad8f5thumb-cover {
        max-height: 220px;
    }
}

/* 小屏手机 */
@media (max-width: 575px) {
    .zad8f5container {
        padding-left: 14px;
        padding-right: 14px;
    }

    .zad8f5navbar-collapse {
        margin-left: -14px;
        margin-right: -14px;
        padding-left: 14px;
        padding-right: 14px;
    }

    .zad8f5hero-section { padding: 1.75rem 0 2.25rem; }
    .zad8f5hero-title { font-size: 1.55rem; }
    .zad8f5hero-subtitle { font-size: 0.88rem; }

    .zad8f5stats-grid,
    .zad8f5trust-grid { grid-template-columns: minmax(0, 1fr); }

    .zad8f5trust-bar { padding: 0.85rem 0; }

    .zad8f5download-card-head {
        flex-direction: row;
        align-items: center;
    }

    .zad8f5list-row {
        grid-template-columns: 1fr;
    }

    .zad8f5list-row > a:first-child {
        display: block;
    }

    .zad8f5thumb-list {
        width: 100%;
        height: 160px;
    }

    .zad8f5article-card {
        grid-template-columns: 1fr;
    }

    .zad8f5thumb-home {
        min-height: 140px;
        height: 140px;
    }

    .zad8f5btn {
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }

    .zad8f5footer-bottom {
        font-size: 0.8rem;
        line-height: 1.6;
    }
}

/* 菜单展开时锁定背景滚动 */
body.zad8f5nav-open {
    overflow: hidden;
}

@media (max-width: 991px) {
    .zad8f5nav-toggle.is-active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .zad8f5nav-toggle.is-active span:nth-child(2) {
        opacity: 0;
    }
    .zad8f5nav-toggle.is-active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    .zad8f5nav-toggle span {
        transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
    }
}