:root {
    --xy-primary: #0f766e;
    --xy-primary-dark: #115e59;
    --xy-accent: #ea580c;
    --xy-accent-hover: #c2410c;
    --xy-bg: #f8fafc;
    --xy-surface: #ffffff;
    --xy-text: #1e293b;
    --xy-muted: #64748b;
    --xy-border: #e2e8f0;
    --xy-radius: 12px;
    --xy-radius-lg: 16px;
    --xy-shadow: 0 4px 24px rgba(15, 118, 110, 0.08);
    --xy-transition: 0.25s ease;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--xy-text);
    line-height: 1.65;
    background: var(--xy-bg);
    margin: 0;
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--xy-accent);
}

/* 导航 */
.za1cdbnavbar {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--xy-border);
    padding: 0.65rem 0;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.za1cdbnavbar .navbar-brand img {
    height: 42px;
    width: auto;
}

.za1cdbnav-link {
    color: var(--xy-text) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.45rem 0.85rem !important;
    border-radius: 8px;
    transition: background var(--xy-transition), color var(--xy-transition);
}

.za1cdbnav-link:hover {
    color: var(--xy-primary) !important;
    background: rgba(15, 118, 110, 0.08);
}

.za1cdbnavbar-toggler {
    border: 1px solid var(--xy-border);
    padding: 0.35rem 0.55rem;
}

.za1cdbnavbar .navbar-collapse {
    background: var(--xy-surface);
}

@media (min-width: 992px) {
    .za1cdbnavbar .navbar-collapse {
        background: transparent;
        box-shadow: none;
        padding: 0;
    }
}

/* 按钮 */
.za1cdbbtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.35rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    transition: transform var(--xy-transition), box-shadow var(--xy-transition), background var(--xy-transition);
    white-space: normal;
    text-align: center;
    line-height: 1.3;
}

.za1cdbbtn-primary {
    background: var(--xy-primary);
    color: #fff;
}

.za1cdbbtn-primary:hover {
    background: var(--xy-primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(15, 118, 110, 0.25);
}

.za1cdbbtn-accent {
    background: var(--xy-accent);
    color: #fff;
}

.za1cdbbtn-accent:hover {
    background: var(--xy-accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(234, 88, 12, 0.25);
}

.za1cdbbtn-outline {
    background: transparent;
    color: var(--xy-primary);
    border: 1px solid var(--xy-primary);
}

.za1cdbbtn-outline:hover {
    background: var(--xy-primary);
    color: #fff;
}

/* Hero */
.za1cdbhero {
    background: linear-gradient(160deg, #ecfdf5 0%, #fff7ed 55%, #f8fafc 100%);
    padding: 3.5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.za1cdbhero::after {
    content: "";
    position: absolute;
    right: -8%;
    top: 10%;
    width: 42%;
    height: 70%;
    background: radial-gradient(circle, rgba(15, 118, 110, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.za1cdbhero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.za1cdbhero-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: rgba(15, 118, 110, 0.12);
    color: var(--xy-primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 999px;
    margin-bottom: 1rem;
    border: 1px solid rgba(15, 118, 110, 0.2);
}

.za1cdbhero-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 1rem;
    color: var(--xy-text);
}

.za1cdbhero-lead {
    font-size: 1.05rem;
    color: var(--xy-muted);
    margin-bottom: 1.5rem;
    max-width: 540px;
}

.za1cdbhero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.za1cdbhero-note {
    font-size: 0.875rem;
    color: var(--xy-muted);
    margin: 0;
}

.za1cdbhero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.za1cdbhero-image {
    max-width: 280px;
    width: 100%;
    border-radius: var(--xy-radius-lg);
    border: 1px solid var(--xy-border);
    box-shadow: var(--xy-shadow);
}

/* 通用区块 */
.za1cdbsection {
    padding: 4rem 0;
}

.za1cdbsection-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 2.5rem;
}

.za1cdbsection-head h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--xy-text);
}

.za1cdbsection-head p {
    color: var(--xy-muted);
    margin: 0;
    font-size: 1rem;
}

/* Bento 特点 */
.za1cdbfeatures {
    background: var(--xy-surface);
}

.za1cdbbento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.za1cdbbento-item {
    background: var(--xy-bg);
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius);
    padding: 1.35rem 1.25rem;
    transition: border-color var(--xy-transition), box-shadow var(--xy-transition);
}

.za1cdbbento-item:hover {
    border-color: rgba(15, 118, 110, 0.35);
    box-shadow: var(--xy-shadow);
}

.za1cdbbento-wide {
    grid-column: span 2;
}

.za1cdbbento-icon {
    font-size: 1.5rem;
    color: var(--xy-primary);
    margin-bottom: 0.75rem;
}

.za1cdbbento-item h3 {
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
    font-weight: 600;
}

.za1cdbbento-item p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--xy-muted);
    line-height: 1.55;
}

.za1cdbintro-block {
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius);
    padding: 1.5rem 1.75rem;
    background: linear-gradient(135deg, #f0fdfa 0%, #fff7ed 100%);
}

.za1cdbintro-block h3 {
    font-size: 1.1rem;
    margin: 0 0 0.65rem;
    color: var(--xy-primary-dark);
}

.za1cdbintro-block p {
    margin: 0;
    color: var(--xy-muted);
    font-size: 0.95rem;
}

/* 统计 */
.za1cdbstats {
    background: linear-gradient(135deg, var(--xy-primary) 0%, var(--xy-primary-dark) 100%);
    padding: 2.5rem 0;
    color: #fff;
}

.za1cdbstats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    text-align: center;
}

.za1cdbstat strong {
    display: block;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.za1cdbstat span {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 下载 */
.za1cdbdownload {
    background: var(--xy-bg);
}

.za1cdbdownload-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    max-width: 900px;
    margin: 0 auto;
}

.za1cdbdl-card {
    background: var(--xy-surface);
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.za1cdbdl-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--xy-border);
}

.za1cdbdl-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #fff;
}

.za1cdbdl-mobile {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.za1cdbdl-pc {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.za1cdbdl-head h3 {
    margin: 0 0 0.2rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.za1cdbdl-head p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--xy-muted);
}

.za1cdbdl-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
    flex: 1;
}

.za1cdbdl-list li {
    position: relative;
    padding: 0.35rem 0 0.35rem 1.25rem;
    font-size: 0.9rem;
    color: var(--xy-muted);
}

.za1cdbdl-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--xy-primary);
    font-weight: 700;
}

.za1cdbdl-btn {
    width: 100%;
}

.za1cdbdownload-tip {
    text-align: center;
    font-size: 0.875rem;
    color: var(--xy-muted);
    margin: 1.5rem auto 0;
    max-width: 560px;
}

/* 安全 */
.za1cdbsecurity {
    background: var(--xy-surface);
}

.za1cdbsec-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.za1cdbsec-card {
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius);
    padding: 1.35rem 1.15rem;
    text-align: center;
    background: var(--xy-bg);
    height: 100%;
}

.za1cdbsec-card i {
    font-size: 1.6rem;
    color: var(--xy-primary);
    margin-bottom: 0.75rem;
}

.za1cdbsec-card h3 {
    font-size: 1rem;
    margin: 0 0 0.5rem;
    font-weight: 600;
}

.za1cdbsec-card p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--xy-muted);
    line-height: 1.5;
}

/* FAQ */
.za1cdbfaq {
    background: var(--xy-bg);
}

.za1cdbfaq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.za1cdbfaq-item {
    background: var(--xy-surface);
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius);
    padding: 1.25rem 1.35rem;
    height: 100%;
}

.za1cdbfaq-item h3 {
    font-size: 1rem;
    margin: 0 0 0.5rem;
    font-weight: 600;
    color: var(--xy-primary-dark);
}

.za1cdbfaq-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--xy-muted);
}

/* 文章 */
.za1cdbarticles {
    background: var(--xy-surface);
    border-top: 1px solid var(--xy-border);
}

.za1cdbarticles-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.za1cdbarticles-head h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.za1cdbarticle-card {
    background: var(--xy-bg);
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--xy-transition);
}

.za1cdbarticle-card:hover {
    box-shadow: var(--xy-shadow);
}

.za1cdbarticle-thumb-wrap {
    display: block;
    overflow: hidden;
}

.za1cdbthumb-home {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.za1cdbarticle-body {
    padding: 0.85rem 1rem 1rem;
    flex: 1;
}

.za1cdbarticle-meta {
    display: block;
    font-size: 0.75rem;
    color: var(--xy-muted);
    margin-bottom: 0.4rem;
}

.za1cdbarticle-body h3 {
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.4;
    font-weight: 600;
}

.za1cdbarticle-body h3 a {
    color: var(--xy-text);
}

.za1cdbarticle-body h3 a:hover {
    color: var(--xy-primary);
}

/* 页脚 */
.za1cdbfooter {
    background: #0f172a;
    color: #94a3b8;
    padding: 3rem 0 1.5rem;
}

.za1cdbfooter-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.za1cdbfooter-col h5 {
    color: #f1f5f9;
    font-size: 0.95rem;
    margin: 0 0 1rem;
    font-weight: 600;
}

.za1cdbfooter-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za1cdbfooter-col li {
    margin-bottom: 0.5rem;
}

.za1cdbfooter-col a {
    color: #94a3b8;
    font-size: 0.9rem;
}

.za1cdbfooter-col a:hover {
    color: #5eead4;
}

.za1cdbfooter-brand img {
    height: 40px;
    margin-bottom: 0.75rem;
}

.za1cdbfooter-col p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.za1cdbfriend-wrap h5 {
    color: #f1f5f9;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.za1cdbfriend-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
}

.za1cdbfriend-links a {
    color: #94a3b8;
    font-size: 0.875rem;
}

.za1cdbfooter-bottom {
    border-top: 1px solid #334155;
    padding-top: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
}

.za1cdbfooter-bottom p {
    margin: 0.35rem 0;
}

.za1cdbfooter-bottom a {
    color: #94a3b8;
}

/* 列表页 / 内页 */
.za1cdbpage-main {
    padding: 2.5rem 0 3rem;
    background: var(--xy-bg);
}

.za1cdbpage-header {
    margin-bottom: 1.5rem;
}

.za1cdbpage-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.za1cdbpage-header p {
    color: var(--xy-muted);
    margin: 0;
    font-size: 0.95rem;
}

.za1cdbpage-card {
    background: var(--xy-surface);
    border: 1px solid var(--xy-border);
    border-radius: var(--xy-radius);
    overflow: hidden;
}

.za1cdbpage-card .card-body {
    padding: 1.25rem 1.5rem;
}

.za1cdbarticle-content {
    line-height: 1.75;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.za1cdbarticle-content img {
    max-width: 100%;
    height: auto;
}

.za1cdbmeta-tags .za1cdbtagitem a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: rgba(15, 118, 110, 0.1);
    border-radius: 6px;
    font-size: 0.85rem;
    margin: 0.15rem;
}

.za1cdbthumb-list,
.za1cdbthumb-related {
    width: 100%;
    height: 84px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--xy-border);
}

.za1cdbthumb-side {
    width: 100%;
    height: 54px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--xy-border);
}

.za1cdbthumb-cover {
    max-width: 100%;
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--xy-radius);
    border: 1px solid var(--xy-border);
}

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

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

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

/* 响应式 */
@media (max-width: 991px) {
    .za1cdbhero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .za1cdbhero-lead {
        margin-left: auto;
        margin-right: auto;
    }

    .za1cdbhero-actions {
        justify-content: center;
    }

    .za1cdbbento {
        grid-template-columns: repeat(2, 1fr);
    }

    .za1cdbbento-wide {
        grid-column: span 1;
    }

    .za1cdbsec-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .za1cdbstats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .za1cdbfooter-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .za1cdbsection {
        padding: 2.75rem 0;
    }

    .za1cdbhero {
        padding: 2.5rem 0 3rem;
    }

    .za1cdbhero-actions {
        flex-direction: column;
    }

    .za1cdbhero-actions .za1cdbbtn {
        width: 100%;
    }

    .za1cdbbento {
        grid-template-columns: 1fr;
    }

    .za1cdbdownload-grid {
        grid-template-columns: 1fr;
    }

    .za1cdbfaq-grid {
        grid-template-columns: 1fr;
    }

    .za1cdbsec-grid {
        grid-template-columns: 1fr;
    }

    .za1cdbstats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .za1cdbfooter-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .za1cdbfooter-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .za1cdbfriend-links {
        justify-content: center;
    }

    .za1cdbnavbar {
        padding: 0.5rem 0;
    }

    .za1cdbnavbar .navbar-collapse {
        margin-top: 0.5rem;
        padding: 0.75rem;
        border: 1px solid var(--xy-border);
        border-radius: var(--xy-radius);
        max-height: 70vh;
        overflow-y: auto;
    }

    .za1cdbnav-link {
        padding: 0.5rem 0.35rem !important;
    }

    .za1cdbintro-block {
        padding: 1.15rem;
    }

    .za1cdbdl-card {
        padding: 1.15rem;
    }

    .za1cdbthumb-home {
        height: 96px;
    }

    .za1cdbarticle-body h3 {
        font-size: 0.9rem;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .za1cdbthumb-list,
    .za1cdbthumb-related {
        height: 72px;
    }

    .za1cdbthumb-side {
        height: 50px;
    }

    .za1cdbthumb-cover {
        height: 170px;
    }

    .za1cdbpage-card .card-body {
        padding: 1rem;
    }
}

@media (max-width: 575px) {
    .za1cdbstats-row {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .za1cdbstat strong {
        font-size: 1.35rem;
    }

    .za1cdbthumb-home {
        height: 88px;
    }

    .za1cdbthumb-list,
    .za1cdbthumb-related {
        height: 64px;
    }

    .za1cdbthumb-cover {
        height: 150px;
    }

    .za1cdbarticles-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .za1cdbarticles-head .za1cdbbtn {
        width: 100%;
    }
}

/* Bootstrap 兼容 */
.bg-light {
    background-color: var(--xy-bg) !important;
}

.card.shadow-sm {
    border: 1px solid var(--xy-border);
    box-shadow: none !important;
    border-radius: var(--xy-radius);
}

.card.shadow-sm .card-body {
    border-radius: var(--xy-radius);
}