:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #ccfbf1;
    --accent: #ea580c;
    --accent-soft: #ffedd5;
    --text: #1e293b;
    --text-muted: #64748b;
    --surface: #ffffff;
    --surface-alt: #f0fdfa;
    --border: #e2e8f0;
    --shadow: 0 4px 24px rgba(15, 118, 110, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 118, 110, 0.12);
    --radius: 12px;
    --radius-lg: 20px;
    --nav-h: 72px;
    --transition: 0.25s ease;
}

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

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

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

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

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

a:hover {
    color: var(--primary-dark);
}

/* —— 导航 —— */
.z32810navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 0;
}

.z32810navbar-brand img {
    height: 42px;
    width: auto;
}

.z32810nav-link {
    color: var(--text) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.45rem 0.85rem !important;
    border-radius: 8px;
    transition: color var(--transition), background var(--transition);
}

.z32810nav-link:hover {
    color: var(--primary) !important;
    background: var(--primary-light);
}

.navbar-toggler {
    border: 1px solid var(--border);
    padding: 0.4rem 0.55rem;
}

.navbar-collapse {
    background: var(--surface);
}

@media (max-width: 991px) {
    .navbar-collapse {
        margin-top: 0.5rem;
        padding: 0.75rem;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        max-height: 70vh;
        overflow-y: auto;
    }

    .z32810nav-link {
        padding: 0.5rem 0.35rem !important;
    }
}

/* —— 区块通用 —— */
.z32810section {
    padding: 4.5rem 0;
}

.z32810section-alt {
    background: var(--surface-alt);
}

.z32810section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 2.75rem;
}

.z32810section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-light);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
}

.z32810section-head h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.65rem;
    line-height: 1.3;
}

.z32810section-head p {
    color: var(--text-muted);
    margin: 0;
    font-size: 1.05rem;
}

/* —— 首屏 Hero —— */
.z32810hero-section {
    position: relative;
    padding: 3.5rem 0 4rem;
    background: linear-gradient(160deg, #042f2e 0%, #0f766e 45%, #14b8a6 100%);
    color: #fff;
    overflow: hidden;
}

.z32810hero-section::after {
    content: "";
    position: absolute;
    right: -8%;
    top: 10%;
    width: 45%;
    height: 80%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.z32810hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.z32810hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.z32810hero-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.z32810hero-subtitle {
    font-size: 1.05rem;
    opacity: 0.92;
    margin-bottom: 1.75rem;
    max-width: 520px;
}

.z32810hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.z32810hero-buttons .btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 0.7rem 1.35rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.z32810btn-primary {
    background: var(--accent);
    border: none;
    color: #fff;
}

.z32810btn-primary:hover {
    background: #c2410c;
    color: #fff;
    transform: translateY(-2px);
}

.z32810btn-outline-light {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.7);
    color: #fff;
}

.z32810btn-outline-light:hover {
    background: #fff;
    color: var(--primary-dark);
    border-color: #fff;
}

.z32810hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.z32810hero-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    width: 100%;
    max-width: 380px;
    backdrop-filter: blur(8px);
}

.z32810hero-card img {
    border-radius: var(--radius);
    width: 100%;
    max-height: 280px;
    object-fit: contain;
    margin: 0 auto;
}

.z32810hero-stats-mini {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.z32810hero-stats-mini span {
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.9;
}

.z32810hero-stats-mini strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.15rem;
}

/* —— 优势卡片 —— */
.z32810features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.z32810feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 1.5rem;
    height: 100%;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
    border-left: 4px solid var(--primary);
}

.z32810feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.z32810feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.z32810feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.z32810feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
}

/* —— 介绍区 —— */
.z32810intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
    align-items: start;
}

.z32810intro-content {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.z32810intro-content p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.z32810intro-content p:last-child {
    margin-bottom: 0;
}

.z32810intro-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.z32810intro-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.15rem;
    font-size: 0.95rem;
}

.z32810intro-list li i {
    color: var(--primary);
    margin-top: 0.15rem;
    flex-shrink: 0;
}

/* —— 数据条 —— */
.z32810stats-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    padding: 3rem 0;
}

.z32810stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.z32810stat-item {
    text-align: center;
    padding: 1rem 0.5rem;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.z32810stat-item:last-child {
    border-right: none;
}

.z32810stat-number {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.z32810stat-label {
    font-size: 0.9rem;
    opacity: 0.88;
}

/* —— 下载区 —— */
.z32810download-section {
    padding: 4.5rem 0;
    background: var(--surface-alt);
}

.z32810download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.z32810download-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.z32810download-card-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.z32810platform-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    flex-shrink: 0;
}

.z32810ios-icon {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.z32810android-icon {
    background: linear-gradient(135deg, #16a34a, #15803d);
}

.z32810download-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 0.2rem;
}

.z32810download-card .text-muted {
    font-size: 0.88rem;
    margin: 0;
}

.z32810download-info {
    flex: 1;
    background: var(--surface-alt);
    border-radius: var(--radius);
    padding: 1rem 1.15rem;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border);
}

.z32810info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
    font-size: 0.92rem;
    color: var(--text-muted);
}

.z32810info-item:last-child {
    margin-bottom: 0;
}

.z32810info-item i {
    color: var(--primary);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.z32810download-action {
    margin-top: auto;
}

.z32810download-action .btn {
    width: 100%;
    border-radius: 10px;
    padding: 0.7rem 1rem;
    font-weight: 600;
    background: var(--primary);
    border: none;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.z32810download-action .btn:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
}

/* —— 安全区 —— */
.z32810security-section {
    padding: 4.5rem 0;
}

.z32810security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.z32810security-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem 1.25rem;
    height: 100%;
    text-align: center;
    box-shadow: var(--shadow);
}

.z32810security-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.z32810security-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.z32810security-features {
    text-align: left;
    background: var(--surface-alt);
    border-radius: 8px;
    padding: 0.85rem;
    border: 1px solid var(--border);
}

.z32810feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.45rem;
}

.z32810feature-item:last-child {
    margin-bottom: 0;
}

.z32810feature-item i {
    color: var(--primary);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.z32810cert-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.z32810certificate-card {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    height: 100%;
}

.z32810certificate-icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.z32810certificate-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.z32810certificate-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* —— FAQ —— */
.z32810faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.z32810faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.35rem;
    height: 100%;
    box-shadow: var(--shadow);
}

.z32810faq-item h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.z32810faq-item p {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin: 0;
}

/* —— 文章区 —— */
#article {
    padding: 4rem 0;
    background: var(--surface-alt);
}

#article .card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    box-shadow: var(--shadow);
}

#article .card-img-top {
    height: 120px;
    object-fit: cover;
    width: 100%;
}

#article .card-body {
    padding: 0.85rem 1rem;
}

#article h3.h5 {
    font-size: 0.95rem;
    line-height: 1.4;
    margin: 0;
}

#article h3.h5 a {
    color: var(--text);
}

#article h3.h5 a:hover {
    color: var(--primary);
}

/* —— 页脚 —— */
.z32810footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 3rem 0 1.5rem;
}

.z32810footer-title {
    color: #f1f5f9;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.z32810footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z32810footer-links li {
    margin-bottom: 0.5rem;
}

.z32810footer-link {
    color: #94a3b8;
    font-size: 0.9rem;
}

.z32810footer-link:hover {
    color: #5eead4;
}

.z32810friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.z32810friend-links a {
    color: #94a3b8;
    font-size: 0.88rem;
}

.z32810footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 1.25rem;
    margin-top: 2rem;
    text-align: center;
    font-size: 0.88rem;
}

.z32810footer-bottom a {
    color: #94a3b8;
}

.z32810footer-bottom a:hover {
    color: #5eead4;
}

/* —— 列表/内页 —— */
.z32810page-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    padding: 2rem 0;
    margin-bottom: 0;
}

.z32810page-header h1 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.z32810page-header p {
    opacity: 0.9;
    margin: 0;
    font-size: 0.95rem;
}

.z32810inner-section {
    padding: 2.5rem 0 3rem;
    background: var(--surface-alt);
}

.z32810inner-section .card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.z32810inner-section .card-body {
    padding: 1.25rem;
}

.z32810article-content {
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.z32810article-content img {
    max-width: 100%;
    height: auto;
}

.z32810thumb-cover {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--radius);
}

.z32810thumb-list,
.z32810thumb-related {
    width: 100%;
    height: 84px;
    object-fit: cover;
    border-radius: 8px;
}

.z32810thumb-side {
    width: 100%;
    height: 54px;
    object-fit: cover;
    border-radius: 6px;
}

.z32810side-thumb-link {
    display: block;
    width: 72px;
    flex: 0 0 72px;
}

.z32810meta-tags .list-inline-item a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: var(--primary-light);
    border-radius: 6px;
    font-size: 0.85rem;
}

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

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

.btn.z32810btn {
    border-radius: 10px;
}

/* —— 响应式 —— */
@media (max-width: 991px) {
    .z32810hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .z32810hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .z32810hero-buttons {
        justify-content: center;
    }

    .z32810features-grid {
        grid-template-columns: 1fr;
    }

    .z32810intro-grid {
        grid-template-columns: 1fr;
    }

    .z32810stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .z32810stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding: 1.25rem 0.5rem;
    }

    .z32810stat-item:nth-child(2n) {
        border-right: none;
    }

    .z32810download-grid {
        grid-template-columns: 1fr;
    }

    .z32810security-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z32810cert-row {
        grid-template-columns: 1fr;
    }

    .z32810faq-grid {
        grid-template-columns: 1fr;
    }

    .z32810footer .row > div {
        text-align: center;
        margin-bottom: 1.5rem;
    }

    .z32810friend-links {
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .z32810section {
        padding: 3rem 0;
    }

    .z32810hero-section {
        padding: 2.5rem 0 3rem;
    }

    .z32810hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .z32810hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .z32810hero-stats-mini {
        grid-template-columns: 1fr;
        gap: 0.65rem;
    }

    .z32810stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 0;
    }

    .z32810security-grid {
        grid-template-columns: 1fr;
    }

    .z32810download-card {
        padding: 1.25rem;
    }

    .z32810download-card-head {
        flex-wrap: wrap;
    }

    .z32810intro-content {
        padding: 1.25rem;
    }

    #article .row {
        --bs-gutter-y: 0.75rem;
    }

    #article .card-img-top {
        height: 96px;
    }

    #article h3.h5 {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

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

    .z32810thumb-list,
    .z32810thumb-related {
        height: 72px;
    }

    .z32810thumb-side {
        height: 50px;
    }

    .z32810thumb-cover {
        max-height: 200px;
    }

    .z32810navbar-brand img {
        height: 36px;
    }
}

@media (max-width: 575px) {
    .z32810stat-item {
        grid-column: span 1;
    }

    #article .card-img-top {
        height: 88px;
    }

    .z32810thumb-list,
    .z32810thumb-related {
        height: 64px;
    }
}