:root {
    --primary-color: #0891b2;
    --primary-dark: #0e7490;
    --secondary-color: #164e63;
    --accent-color: #f59e0b;
    --accent-soft: #fef3c7;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --light-bg: #f8fafc;
    --surface: #ffffff;
    --dark-bg: #0f172a;
    --border-color: #e2e8f0;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 14px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.1);
    --shadow-lg: 0 24px 48px rgba(8, 145, 178, 0.15);
    --transition-speed: 0.3s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
    color: var(--text-color);
    line-height: 1.65;
    background: var(--light-bg);
    overflow-x: hidden;
}

/* 布局容器统一 */
.z0487acontainer.container {
    width: 100%;
    max-width: 1140px;
    padding-left: 15px;
    padding-right: 15px;
    margin-left: auto;
    margin-right: auto;
}

section.container,
section.z0487acontainer {
    display: block;
    width: 100%;
}

/* Bootstrap 栅格列防溢出 */
[class*="col-"] {
    min-width: 0;
    max-width: 100%;
}

html {
    scroll-behavior: smooth;
}

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

/* 导航 */
.z0487anavbar {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.z0487anavbar-brand img {
    height: 42px;
}

.z0487anav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.45rem 0.85rem !important;
    border-radius: 8px;
    transition: color var(--transition-speed), background var(--transition-speed);
}

.z0487anav-link:hover,
.z0487anav-item.active .z0487anav-link {
    color: var(--primary-color) !important;
    background: rgba(8, 145, 178, 0.08);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-collapse {
    background: var(--surface);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
}

@media (min-width: 992px) {
    .navbar-collapse {
        background: transparent;
        padding: 0;
    }
}

/* 区块标题 */
.z0487asection-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 2.25rem;
    padding: 0 0.25rem;
}

.z0487asection-badge {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    background: rgba(8, 145, 178, 0.1);
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 0.75rem;
}

.z0487asection-title {
    font-size: clamp(1.6rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--dark-bg);
    margin-bottom: 0.75rem;
}

.z0487asection-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin: 0;
}

/* 英雄区 */
.z0487ahero-section {
    background: linear-gradient(145deg, #0f172a 0%, #164e63 45%, #0891b2 100%);
    color: #fff;
    padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(3rem, 6vw, 4.5rem);
    position: relative;
    overflow: hidden;
}

.z0487ahero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(245, 158, 11, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.12) 0%, transparent 40%);
    pointer-events: none;
}

.z0487ahero-content {
    position: relative;
    z-index: 1;
}

.z0487ahero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
}

.z0487ahero-title {
    font-size: clamp(1.85rem, 4.5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.z0487ahero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    opacity: 0.92;
    max-width: 540px;
    margin-bottom: 1.75rem;
}

.z0487ahero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.75rem;
}

.z0487ahero-tag {
    font-size: 0.78rem;
    padding: 0.3rem 0.65rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.z0487ahero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.z0487ahero-buttons .btn {
    padding: 0.7rem 1.35rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
}

.z0487ahero-buttons .btn-light {
    background: #fff;
    color: var(--primary-dark);
}

.z0487ahero-buttons .btn-accent {
    background: var(--accent-color);
    color: var(--dark-bg);
}

.z0487ahero-buttons .btn-outline-light {
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #fff;
    background: transparent;
}

.z0487ahero-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.z0487ahero-image-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.z0487ahero-image {
    width: 100%;
    max-width: 320px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 3px solid rgba(255, 255, 255, 0.15);
}

.z0487ahero-image-shadow {
    display: none;
}

.z0487ahero-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.z0487ahero-metric strong {
    display: block;
    font-size: 1.1rem;
}

.z0487ahero-metric span {
    font-size: 0.78rem;
    opacity: 0.8;
}

/* 简介条 */
.z0487aintro-strip {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
}

.z0487aintro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    align-items: stretch;
}

.z0487aintro-card {
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    height: 100%;
    min-width: 0;
}

.z0487aintro-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
    line-height: 1.4;
    word-break: break-word;
}

.z0487aintro-card p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-muted);
}

/* 特点 Bento */
.z0487afeatures-section {
    padding: clamp(2.5rem, 5vw, 4rem) 0;
    background: var(--light-bg);
}

.z0487afeatures-section > .container,
.z0487afeatures-section > section.container,
.z0487aregister-section > section.container,
.z0487adownload-section > section.container,
.z0487asecurity-section > section.container,
.z0487afaq-section > section.container,
.z0487aarticles-section > section.container,
.z0487aintro-strip > section.container {
    display: block;
    width: 100%;
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

.z0487abento-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1rem;
    width: 100%;
}

.z0487abento-item {
    grid-column: span 4;
    background: var(--surface);
    border-radius: var(--radius-sm);
    padding: 1.35rem;
    border: 1px solid var(--border-color);
    box-shadow: none;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    height: 100%;
    min-width: 0;
    overflow: hidden;
}

.z0487abento-item:hover {
    border-color: rgba(8, 145, 178, 0.35);
    box-shadow: var(--shadow-sm);
}

.z0487abento-item.span-6 {
    grid-column: span 6;
}

.z0487abento-item.span-8 {
    grid-column: span 8;
}

.z0487abento-icon,
.z0487asecurity-icon,
.z0487astep-num {
    display: flex;
}

.z0487abento-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    background: linear-gradient(135deg, rgba(8, 145, 178, 0.15), rgba(245, 158, 11, 0.12));
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.z0487abento-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.z0487abento-item p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.55;
    word-break: break-word;
}

p.z0487afeature-item {
    margin-bottom: 0.45rem;
}

p.z0487afeature-item:last-child {
    margin-bottom: 0;
}

/* 注册流程 */
.z0487aregister-section {
    padding: clamp(2.5rem, 5vw, 3.5rem) 0;
    background: var(--surface);
}

.z0487asteps-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.z0487astep-card {
    text-align: center;
    padding: 1.25rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border-color);
    background: var(--light-bg);
    position: relative;
    min-width: 0;
    height: 100%;
}

.z0487astep-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.z0487astep-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.z0487astep-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 0;
}

/* 统计 */
.z0487astats-section {
    background: linear-gradient(135deg, var(--dark-bg), var(--secondary-color));
    color: #fff;
    padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.z0487astat-item {
    text-align: center;
    padding: 0.75rem 0.5rem;
    min-width: 0;
}

.z0487astat-number {
    display: block;
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
}

.z0487astat-label {
    font-size: 0.95rem;
    opacity: 0.88;
}

/* 下载 */
.z0487adownload-section {
    padding: clamp(2.5rem, 5vw, 4rem) 0;
    background: linear-gradient(180deg, #ecfeff 0%, var(--light-bg) 100%);
}

.z0487adownload-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--surface);
    box-shadow: none;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.z0487adownload-card:hover {
    border-color: rgba(8, 145, 178, 0.35);
    box-shadow: var(--shadow-sm);
}

.z0487adownload-card .card-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.z0487adownload-card .card-header-flex {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    min-width: 0;
}

.z0487adownload-card .card-header-flex .header-text {
    flex: 1;
    min-width: 0;
}

.z0487adownload-card .card-header-flex h3 {
    font-size: 1rem;
    margin-bottom: 0.15rem;
    word-break: break-word;
}

.z0487adownload-action {
    margin-top: auto;
    padding-top: 0.25rem;
}

.z0487aplatform-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
}

.z0487aios-icon {
    background: linear-gradient(135deg, #007aff, #0056b3);
}

.z0487aandroid-icon {
    background: linear-gradient(135deg, #3ddc84, #2bb673);
}

.z0487awin-icon {
    background: linear-gradient(135deg, #6366f1, #4338ca);
}

.z0487adownload-info {
    background: var(--light-bg);
    padding: 0.85rem 1rem;
    border-radius: 8px;
    margin: 0 0 1rem;
    border: 1px solid var(--border-color);
}

.z0487ainfo-item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

p.z0487ainfo-item {
    margin-bottom: 0.6rem;
}

.z0487ahero-buttons .btn-accent {
    background: var(--accent-color);
    color: var(--dark-bg);
    border: none;
}

.z0487ainfo-item:last-child {
    margin-bottom: 0;
}

.z0487ainfo-item i {
    color: var(--primary-color);
    margin-top: 0.15rem;
}

.z0487adownload-action .btn-primary,
.btn-primary.z0487abtn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    padding: 0.65rem 1.25rem;
}

.z0487adownload-action .btn-primary:hover,
.btn-primary.z0487abtn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
    transform: translateY(-2px);
}

/* 安全 */
.z0487asecurity-section {
    padding: clamp(2.5rem, 5vw, 4rem) 0;
    background: var(--surface);
}

.z0487asecurity-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    height: 100%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.z0487asecurity-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.z0487asecurity-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    margin-bottom: 1rem;
}

.z0487asecurity-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.z0487asecurity-features {
    background: var(--surface);
    padding: 0.85rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    flex: 1;
}

.z0487afeature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.z0487afeature-item i {
    color: var(--primary-color);
    margin-top: 0.15rem;
}

.z0487acertificate-card {
    text-align: center;
    padding: 1.15rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    height: 100%;
    min-width: 0;
}

.z0487acertificate-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: rgba(8, 145, 178, 0.12);
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.z0487acertificate-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.z0487acertificate-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 0;
}

/* FAQ */
.z0487afaq-section {
    padding: clamp(2.5rem, 5vw, 4rem) 0;
    background: var(--light-bg);
}

.z0487afaq-section .accordion {
    max-width: 820px;
    margin: 0 auto;
}

.z0487afaq-section .accordion-item {
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-sm) !important;
    margin-bottom: 0.65rem;
    overflow: hidden;
    background: var(--surface);
}

.z0487afaq-section .accordion-body {
    padding: 1rem 1.15rem;
    font-size: 0.95rem;
    line-height: 1.65;
}

.z0487afaq-section .accordion-button {
    font-weight: 600;
    color: var(--text-color);
    background: var(--surface);
    box-shadow: none;
}

.z0487afaq-section .accordion-button:not(.collapsed) {
    color: var(--primary-dark);
    background: rgba(8, 145, 178, 0.06);
}

.z0487afaq-section .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

/* 文章区 */
.z0487aarticles-section {
    padding: clamp(2.5rem, 5vw, 3.5rem) 0;
    background: var(--surface);
}

.z0487aarticle-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--surface);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    height: 100%;
    min-width: 0;
}

.z0487aarticle-card:hover {
    border-color: rgba(8, 145, 178, 0.35);
    box-shadow: var(--shadow-sm);
}

.z0487aarticles-section .row {
    --bs-gutter-x: 0.75rem;
    --bs-gutter-y: 0.75rem;
}

.z0487athumb-home {
    height: 120px;
    object-fit: cover;
    width: 100%;
}

.z0487aarticle-card .card-body {
    padding: 0.85rem;
}

.z0487aarticle-card .card-body h3,
.z0487aarticle-card .card-body h6 {
    font-size: 0.9rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z0487ahero-metric {
    display: block;
    min-width: 0;
}

.z0487ahero-image-container {
    max-width: 100%;
}

/* 页脚 */
.z0487afooter {
    background: var(--dark-bg);
    color: #94a3b8;
    padding: 3.5rem 0 1.5rem;
}

.z0487afooter-title {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.z0487afooter-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z0487afooter-links li {
    margin-bottom: 0.6rem;
}

.z0487afooter-link {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.92rem;
    transition: color var(--transition-speed);
}

.z0487afooter-link:hover {
    color: var(--accent-color);
}

.z0487afooter p {
    font-size: 0.9rem;
    color: #94a3b8;
}

.z0487afooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    margin-top: 2rem;
}

.z0487afooter-bottom a {
    color: #cbd5e1;
    text-decoration: none;
}

.z0487afooter-bottom a:hover {
    color: var(--accent-color);
}

.z0487afriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.z0487afriend-links a {
    color: #94a3b8;
    font-size: 0.88rem;
    text-decoration: none;
}

.z0487afriend-links a:hover {
    color: var(--accent-color);
}

/* 内页/列表 */
.z0487apage-hero {
    background: linear-gradient(135deg, var(--dark-bg), var(--secondary-color));
    color: #fff;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.z0487apage-hero h1 {
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.z0487apage-hero p {
    margin: 0;
    opacity: 0.85;
    font-size: 0.95rem;
}

.z0487acontent-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.z0487athumb-cover {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: 220px;
    object-fit: cover;
}

@media (min-width: 768px) {
    .z0487athumb-cover {
        max-width: 360px;
        width: auto;
        height: 200px;
    }
}

.z0487asidebar-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

.z0487asidebar-card .card-body h3 {
    font-size: 1rem;
    font-weight: 700;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
    margin-bottom: 1rem;
}

/* 兼容旧类名 */
.z0487afeature-card {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    height: 100%;
    background: var(--surface);
}

.z0487afeature-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.z0487adownload-header h2,
.z0487asecurity-header h2 {
    color: var(--dark-bg);
    font-weight: 700;
}

.z0487adownload-subtitle,
.z0487asecurity-subtitle {
    color: var(--text-muted);
}

.btn {
    transition: all var(--transition-speed) var(--transition-easing);
}

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

/* 分页 */
.pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.pagebar .pagelist li {
    display: inline-flex;
    margin: 0;
}

/* 响应式 */
@media (max-width: 1199px) {
    .z0487aintro-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .z0487asteps-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .z0487abento-item.span-8 {
        grid-column: span 12;
    }

    .z0487abento-item.span-4,
    .z0487abento-item.span-6 {
        grid-column: span 6;
    }
}

@media (max-width: 991px) {
    .z0487aintro-grid {
        grid-template-columns: 1fr;
    }

    .z0487abento-item,
    .z0487abento-item.span-4,
    .z0487abento-item.span-6,
    .z0487abento-item.span-8 {
        grid-column: span 12;
    }

    .z0487asteps-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .z0487ahero-metrics {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.5rem;
    }

    .z0487ahero-metric strong {
        font-size: 1rem;
    }

    .z0487ahero-metric span {
        font-size: 0.72rem;
    }
}

/* 平板竖屏 / 手机 */
@media (max-width: 767px) {
    .z0487acontainer.container,
    .z0487afeatures-section > section.container,
    .z0487aregister-section > section.container,
    .z0487adownload-section > section.container,
    .z0487asecurity-section > section.container,
    .z0487afaq-section > section.container,
    .z0487aarticles-section > section.container,
    .z0487aintro-strip > section.container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .z0487ahero-section {
        padding: 2rem 0 2.25rem;
    }

    .z0487ahero-section .row {
        --bs-gutter-y: 1.25rem;
    }

    .z0487ahero-title {
        font-size: 1.65rem;
        line-height: 1.2;
    }

    .z0487ahero-subtitle {
        max-width: none;
        font-size: 0.94rem;
        margin-bottom: 1.25rem;
    }

    .z0487ahero-eyebrow {
        font-size: 0.8rem;
        margin-bottom: 1rem;
    }

    .z0487ahero-tags {
        margin-bottom: 1.25rem;
    }

    .z0487ahero-buttons {
        flex-direction: column;
        gap: 0.6rem;
    }

    .z0487ahero-buttons .btn {
        width: 100%;
    }

    .z0487ahero-buttons .btn-lg {
        padding: 0.65rem 1rem;
        font-size: 0.95rem;
    }

    .z0487ahero-image-container {
        padding: 0.25rem 0 0;
    }

    .z0487ahero-image {
        max-width: 240px;
        margin-left: auto;
        margin-right: auto;
        border-width: 2px;
    }

    .z0487ahero-metrics {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        text-align: center;
        margin-top: 1.5rem;
        padding-top: 1.25rem;
    }

    .z0487aintro-strip {
        padding: 1.25rem 0;
    }

    .z0487afeatures-section,
    .z0487aregister-section,
    .z0487adownload-section,
    .z0487asecurity-section,
    .z0487afaq-section,
    .z0487aarticles-section {
        padding: 2rem 0;
    }

    .z0487astats-section {
        padding: 2rem 0;
    }

    .z0487asection-head {
        margin-bottom: 1.75rem;
    }

    .z0487asection-title {
        font-size: 1.4rem;
    }

    .z0487asection-desc {
        font-size: 0.92rem;
    }

    .z0487abento-grid {
        gap: 0.75rem;
    }

    .z0487abento-item,
    .z0487abento-item.span-6,
    .z0487abento-item.span-8 {
        grid-column: span 12;
    }

    .z0487asteps-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .z0487astat-number {
        font-size: 1.6rem;
    }

    .z0487astat-label {
        font-size: 0.85rem;
    }

    .z0487astat-item {
        padding: 0.5rem 0.35rem;
    }

    .z0487adownload-section {
        padding: 2rem 0;
    }

    .z0487adownload-card .card-header-flex {
        flex-direction: row;
        align-items: center;
        text-align: left;
    }

    .z0487adownload-card .card-header-flex .header-text {
        min-width: 0;
    }

    .z0487adownload-action .btn {
        width: 100%;
    }

    .z0487asecurity-card {
        padding: 1.15rem;
    }

    .z0487afaq-section .accordion-button {
        font-size: 0.92rem;
        padding: 0.85rem 2.25rem 0.85rem 1rem;
        line-height: 1.45;
        white-space: normal;
        text-align: left;
    }

    .z0487afaq-section .accordion-body {
        padding: 0.85rem 1rem;
        font-size: 0.9rem;
    }

    .z0487aarticles-section .d-flex.flex-wrap {
        flex-direction: column;
        align-items: stretch !important;
        gap: 0.75rem !important;
    }

    .z0487aarticles-section .d-flex .btn {
        width: 100%;
        text-align: center;
    }

    .z0487aarticles-section .row.row-cols-sm-2 > .col {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z0487athumb-home {
        height: 140px !important;
    }

    .z0487aarticle-card .card-body h6 {
        font-size: 0.95rem;
    }

    .z0487anavbar {
        padding: 0.5rem 0;
    }

    .z0487anavbar-brand img {
        height: 36px;
    }

    .z0487anavbar .navbar-collapse {
        margin-top: 0.5rem;
        max-height: 70vh;
        overflow-y: auto;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        padding: 0.5rem;
    }

    .z0487anav-link {
        padding: 0.55rem 0.65rem !important;
        font-size: 0.92rem;
    }

    .z0487abtn,
    .btn.z0487abtn {
        white-space: normal;
        word-break: break-word;
    }

    .z0487apy-5.py-5 {
        padding-top: 1.75rem !important;
        padding-bottom: 1.75rem !important;
    }

    .z0487apage-hero {
        padding: 1.35rem 0;
        margin-bottom: 1rem;
    }

    .z0487apage-hero h1 {
        font-size: 1.25rem;
    }

    .z0487apage-hero p {
        font-size: 0.88rem;
    }

    .z0487acontent-card .card-body {
        padding: 1rem !important;
    }

    .listbox .e2 li .row {
        --bs-gutter-y: 0.65rem;
    }

    .listbox .e2 li h2.h5 {
        font-size: 1rem;
        line-height: 1.35;
    }

    .listbox .e2 li p {
        font-size: 0.88rem;
        line-height: 1.5;
    }

    .z0487athumb-list,
    .z0487athumb-related {
        height: 80px !important;
    }

    .z0487athumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: auto !important;
        min-height: 140px;
        max-height: 200px;
        object-fit: cover;
    }

    article .card-body header .small.text-muted {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.35rem;
    }

    article .card-body header .small.text-muted span {
        margin-right: 0 !important;
    }

    .z0487aarticle-content {
        overflow-wrap: break-word;
        word-break: break-word;
    }

    .z0487aarticle-content img {
        max-width: 100%;
        height: auto;
    }

    aside.col-lg-4 {
        margin-top: 1.25rem !important;
    }

    aside .d-flex.gap-2 a:last-child {
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .z0487afooter {
        text-align: center;
        padding: 2.25rem 0 1.25rem;
    }

    .z0487afooter .row.g-4 > [class*="col-"] {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z0487afooter .col-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .z0487afooter-title {
        margin-top: 0.5rem;
        margin-bottom: 0.85rem;
    }

    .z0487afooter-bottom p {
        font-size: 0.82rem;
        line-height: 1.65;
        padding: 0 0.25rem;
    }

    .z0487afriend-links {
        justify-content: center;
    }

    .pagebar .pagelist {
        justify-content: center;
    }
}

/* 小屏手机 */
@media (max-width: 575px) {
    .z0487asection-head {
        margin-bottom: 1.5rem;
    }

    .z0487aintro-card,
    .z0487abento-item,
    .z0487adownload-card .card-body,
    .z0487asecurity-card,
    .z0487astep-card {
        padding: 1rem;
    }

    .z0487ahero-title {
        font-size: 1.45rem;
    }

    .z0487ahero-tag {
        font-size: 0.72rem;
    }

    .z0487ahero-metrics {
        grid-template-columns: 1fr;
        gap: 0.65rem;
    }

    .z0487ahero-metric {
        padding: 0.5rem;
        background: rgba(255, 255, 255, 0.08);
        border-radius: 8px;
    }

    .z0487astat-number {
        font-size: 1.45rem;
    }

    .z0487adownload-card .card-header-flex {
        flex-direction: column;
        text-align: center;
    }

    .z0487aplatform-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }

    .z0487athumb-home {
        height: 120px !important;
    }

    .z0487afooter .col-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .listbox .e2 li .col-4,
    .listbox .e2 li .col-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .listbox .e2 li .z0487athumb-list {
        height: 150px !important;
    }

    .z0487athumb-list,
    .z0487athumb-related {
        height: 72px !important;
    }

    .z0487athumb-cover {
        min-height: 120px;
        max-height: 180px;
    }

    aside .d-flex.gap-2 {
        flex-direction: column;
    }

    aside .d-flex.gap-2 a:first-child {
        width: 100% !important;
        flex: none !important;
    }

    aside .d-flex.gap-2 a:first-child img {
        width: 100% !important;
        height: 100px !important;
    }
}