:root {
    --primary-color: #f0b90b;
    --primary-dark: #d4a008;
    --secondary-color: #0b0e11;
    --accent-color: #0ecb81;
    --surface: #f5f5f5;
    --surface-elevated: #ffffff;
    --text-color: #1e2329;
    --text-muted: #5e6673;
    --border-subtle: rgba(30, 35, 41, 0.1);
    --border-inner: rgba(30, 35, 41, 0.06);
    --gray-100: #fafafa;
    --gray-200: #eaecef;
    --transition-speed: 0.25s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --radius-card: 0.5rem;
    --radius-inner: 0.375rem;
    --shadow-soft: 0 2px 8px rgba(11, 14, 17, 0.06);
    --shadow-hover: 0 8px 24px rgba(11, 14, 17, 0.1);
    --brand-rgb: 240, 185, 11;
}

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
    color: var(--text-color);
    line-height: 1.65;
    background: var(--surface);
    overflow-x: hidden;
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}

.container .row > [class*="col-"] {
    min-width: 0;
}

.min-w-0 {
    min-width: 0;
}

/* —— 导航 —— */
.zd74ebnavbar {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
    padding: 0.6rem 0;
}

.zd74ebnavbar-brand img {
    height: 44px;
    width: auto;
    max-height: 44px;
}

.zd74ebnav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.45rem 0.75rem !important;
    border-radius: 0.5rem;
    transition: color var(--transition-speed), background var(--transition-speed);
    white-space: normal;
    word-break: break-word;
}

.zd74ebnav-link:hover,
.zd74ebnav-link:focus {
    color: var(--primary-dark) !important;
    background: rgba(var(--brand-rgb), 0.08);
}

/* —— 英雄区 —— */
.zd74ebhero-section {
    background: linear-gradient(155deg, #0c1929 0%, #152a45 38%, #1e3a5f 100%);
    color: #f8fafc;
    padding: clamp(3.25rem, 8vw, 6rem) 0 clamp(3rem, 7vw, 5.25rem);
    position: relative;
    overflow: hidden;
}

.zd74ebhero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 90% 55% at 15% -10%, rgba(37, 99, 235, 0.45), transparent 55%),
        radial-gradient(ellipse 50% 45% at 95% 100%, rgba(245, 158, 11, 0.18), transparent 50%);
    pointer-events: none;
}

.zd74ebhero-section::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg width='72' height='72' viewBox='0 0 72 72' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23ffffff' fill-opacity='1' d='M36 0v72M0 36h72' stroke='%23fff' stroke-width='0.5'/%3E%3C/svg%3E");
    pointer-events: none;
}

.zd74ebhero-content {
    position: relative;
    z-index: 1;
}

.zd74ebhero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fde68a;
    margin-bottom: 0.85rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.zd74ebhero-title {
    font-size: clamp(1.9rem, 4.8vw, 3.15rem);
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.12;
    letter-spacing: -0.03em;
}

.zd74ebhero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin-bottom: 1rem;
    opacity: 0.93;
    max-width: 38rem;
    line-height: 1.6;
}

.zd74ebhero-lead {
    font-size: 0.95rem;
    line-height: 1.7;
    opacity: 0.82;
    max-width: 40rem;
    margin-bottom: 0;
}

.zd74ebhero-lead strong {
    color: #fff;
    font-weight: 600;
}

.zd74ebhero-image-wrap {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
}

.zd74ebhero-image-frame {
    position: relative;
    padding: 1rem;
    border-radius: calc(var(--radius-card) + 4px);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-sizing: border-box;
    max-width: 100%;
}

.zd74ebhero-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--radius-card);
    display: block;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

.zd74ebhero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.35rem;
}

.zd74ebhero-buttons .btn {
    padding: 0.62rem 1.25rem;
    border-radius: 999px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.zd74ebhero-buttons .btn-light {
    background: #fff;
    color: var(--primary-dark);
    border: none;
}

.zd74ebhero-buttons .btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
}

.zd74ebhero-buttons .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    border: none;
    color: #fff;
}

.zd74ebhero-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.45);
}

.zd74ebhero-buttons .btn-outline-light {
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #f8fafc;
    background: transparent;
}

.zd74ebhero-buttons .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
    .zd74ebhero-buttons {
        flex-direction: column;
    }

    .zd74ebhero-buttons .btn {
        width: 100%;
    }
}

/* —— 信任条 —— */
.zd74ebtrust-band {
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.25rem 0;
}

.zd74ebtrust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
}

.zd74ebtrust-item {
    padding: 0.75rem 0.5rem;
    border-radius: var(--radius-inner);
    border: 1px solid var(--border-inner);
    background: var(--gray-100);
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.45;
    box-sizing: border-box;
    overflow: hidden;
}

.zd74ebtrust-item strong {
    display: block;
    color: var(--secondary-color);
    font-size: 0.875rem;
    margin-bottom: 0.2rem;
}

@media (max-width: 575px) {
    .zd74ebtrust-grid {
        grid-template-columns: 1fr;
        text-align: left;
    }

    .zd74ebtrust-item {
        text-align: left;
        padding: 0.85rem 1rem;
    }
}

/* —— 通栏导读 —— */
.zd74ebprose-section {
    background: linear-gradient(180deg, var(--surface-elevated) 0%, var(--gray-100) 100%);
    border-bottom: 1px solid var(--border-subtle);
    padding: clamp(2.25rem, 5vw, 3.25rem) 0;
}

.zd74ebprose-section .lead {
    color: var(--text-muted);
    max-width: 54rem;
    margin: 0 auto;
    text-align: center;
    font-size: clamp(1rem, 2.1vw, 1.125rem);
    line-height: 1.75;
}

.zd74ebprose-columns {
    max-width: 56rem;
    margin: 2rem auto 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.zd74ebprose-columns p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.75;
    margin: 0;
}

@media (max-width: 767px) {
    .zd74ebprose-columns {
        grid-template-columns: 1fr;
        margin-top: 1.5rem;
    }
}

/* —— 分区标题 —— */
.zd74ebsection-head {
    text-align: center;
    max-width: 42rem;
    margin: 0 auto 2.25rem;
}

.zd74ebsection-head h2 {
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    letter-spacing: -0.02em;
}

.zd74ebsection-head p {
    color: var(--text-muted);
    margin: 0;
    font-size: 1rem;
    line-height: 1.65;
}

.zd74ebsection-shell {
    padding: clamp(2.75rem, 6vw, 4.25rem) 0;
}

.zd74ebsection-shell--alt {
    background: var(--surface-elevated);
}

.zd74ebsection-shell--muted {
    background: var(--gray-100);
}

/* —— 特点卡片 —— */
.card.zd74ebfeature-card {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-speed) var(--transition-easing),
        box-shadow var(--transition-speed) var(--transition-easing);
    border: 1px solid var(--border-subtle);
    height: 100%;
    background: var(--surface-elevated);
    overflow: clip;
    box-sizing: border-box;
}

.card.zd74ebfeature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.zd74ebfeature-icon {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1.1rem;
    background: rgba(var(--brand-rgb), 0.1);
    width: 68px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-inner);
    margin: 0 auto 1.1rem;
}

.zd74ebdeep-dive {
    margin-top: 2.5rem;
    padding: 1.5rem 1.75rem;
    border-radius: var(--radius-card);
    border: 1px solid var(--border-subtle);
    background: var(--surface-elevated);
    box-shadow: var(--shadow-soft);
    box-sizing: border-box;
    overflow: clip;
}

.zd74ebdeep-dive p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.75;
}

.zd74ebdeep-dive p:last-child {
    margin-bottom: 0;
}

/* —— 统计数据 —— */
.zd74ebstats-section {
    background: linear-gradient(135deg, #1e40af 0%, #0f172a 100%);
    color: #f8fafc;
    padding: clamp(2.75rem, 6vw, 4rem) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.zd74ebstat-number {
    font-size: clamp(1.85rem, 4vw, 2.65rem);
    font-weight: 800;
    margin-bottom: 0.35rem;
    color: #fde68a;
    line-height: 1.1;
}

.zd74ebstat-label {
    font-size: clamp(0.78rem, 1.9vw, 0.95rem);
    opacity: 0.9;
    max-width: 13.5rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4;
}

/* —— 下载区 —— */
.zd74ebdownload-section {
    padding: clamp(2.75rem, 7vw, 4.5rem) 0;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--surface) 100%);
}

.zd74ebdownload-header h2 {
    color: var(--secondary-color);
    font-weight: 800;
}

.zd74ebdownload-subtitle {
    color: var(--text-muted);
}

.zd74ebdownload-card {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    background: var(--surface-elevated);
    box-sizing: border-box;
    overflow: clip;
}

.zd74ebdownload-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.zd74ebplatform-icon {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-inner);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.zd74ebios-icon {
    background: linear-gradient(135deg, #57534e, #292524);
    color: #fff;
}

.zd74ebandroid-icon {
    background: linear-gradient(135deg, #22c55e, #15803d);
    color: #fff;
}

.zd74ebdownload-info {
    background: rgba(var(--brand-rgb), 0.06);
    padding: 1.15rem 1.2rem;
    border-radius: var(--radius-inner);
    border: 1px solid var(--border-inner);
    box-sizing: border-box;
}

.zd74ebinfo-item i {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.15em;
}

.zd74ebinfo-item span {
    min-width: 0;
}

.zd74ebdownload-action .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
}

/* —— 新手指引 —— */
.zd74ebguide-section {
    padding: clamp(2.75rem, 6vw, 4.25rem) 0;
    background: var(--surface-elevated);
}

.zd74ebguide-panel {
    border-radius: var(--radius-card);
    border: 1px solid var(--border-subtle);
    padding: 1.35rem 1.5rem;
    height: 100%;
    background: var(--gray-100);
    box-sizing: border-box;
    overflow: clip;
}

.zd74ebguide-panel h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.85rem;
}

.zd74ebguide-panel ol,
.zd74ebguide-panel ul {
    padding-left: 1.1rem;
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.zd74ebguide-panel li {
    margin-bottom: 0.45rem;
}

.zd74ebguide-callout {
    margin-top: 1.75rem;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-card);
    border: 1px solid rgba(var(--brand-rgb), 0.2);
    background: rgba(var(--brand-rgb), 0.05);
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
    box-sizing: border-box;
}

/* —— 安全区 —— */
.zd74ebsecurity-section {
    padding: clamp(2.75rem, 7vw, 4.5rem) 0;
    background: var(--surface);
}

.zd74ebsecurity-header h2 {
    color: var(--secondary-color);
    font-weight: 800;
}

.zd74ebsecurity-subtitle {
    color: var(--text-muted);
}

.zd74ebsecurity-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-card);
    padding: 1.35rem 1.25rem;
    height: 100%;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-subtle);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-sizing: border-box;
    overflow: clip;
}

.zd74ebsecurity-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.zd74ebsecurity-icon {
    width: 58px;
    height: 58px;
    border-radius: var(--radius-inner);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
}

.zd74ebsecurity-card h3 {
    color: var(--secondary-color);
    font-weight: 600;
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.zd74ebsecurity-features {
    background: rgba(var(--brand-rgb), 0.05);
    padding: 1rem 1.1rem;
    border-radius: var(--radius-inner);
    border: 1px solid var(--border-inner);
    box-sizing: border-box;
}

.zd74ebfeature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.65rem;
    gap: 0.5rem;
}

.zd74ebfeature-item:last-child {
    margin-bottom: 0;
}

.zd74ebfeature-item span {
    min-width: 0;
    font-size: 0.88rem;
}

.zd74ebfeature-item i {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.15em;
}

.zd74ebsecurity-certificates {
    margin-top: 2.5rem;
}

.zd74ebcertificate-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-card);
    padding: 1.35rem 1.25rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-subtle);
    height: 100%;
    transition: transform 0.25s ease;
    box-sizing: border-box;
    overflow: clip;
}

.zd74ebcertificate-card:hover {
    transform: translateY(-3px);
}

.zd74ebcertificate-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-inner);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
}

.zd74ebcertificate-card h4 {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1rem;
}

.zd74ebcertificate-card p {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.55;
}

/* —— FAQ —— */
.card.zd74ebfaq-card {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    transition: box-shadow 0.25s ease;
    overflow: clip;
    box-sizing: border-box;
}

.card.zd74ebfaq-card:hover {
    box-shadow: var(--shadow-hover);
}

.card.zd74ebfaq-card .card-title {
    color: var(--secondary-color);
    font-size: 0.98rem;
    font-weight: 600;
    line-height: 1.45;
}

/* —— 文章区 —— */
.zd74ebarticle-zone {
    background: var(--gray-100);
    border-top: 1px solid var(--border-subtle);
}

#article .card {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    box-sizing: border-box;
}

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

section#faq.bg-white {
    border-top: 1px solid var(--border-subtle);
}

/* —— 页脚 —— */
.zd74ebfooter {
    background: var(--secondary-color);
    padding: 2.75rem 0 1.35rem;
    color: #94a3b8;
}

.zd74ebfooter .zd74ebfooter-title {
    color: #e2e8f0;
}

.zd74ebfooter-link {
    color: #94a3b8;
}

.zd74ebfooter-link:hover {
    color: var(--primary-color);
}

.zd74ebfooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.35rem;
}

.zd74ebfooter-bottom a {
    color: #cbd5e1;
}

.zd74ebfooter-bottom a:hover {
    color: var(--primary-color);
}

/* —— 子页内容区 —— */
.zd74ebpage-shell {
    padding: clamp(1.75rem, 4vw, 2.75rem) 0;
    background: var(--surface);
    min-height: 50vh;
}

.zd74ebpage-shell .card {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-card);
    overflow: clip;
    box-sizing: border-box;
}

.zd74ebpage-shell .card.shadow-sm {
    box-shadow: var(--shadow-soft) !important;
}

.zd74ebpage-shell aside a {
    color: var(--primary-dark);
    text-decoration: none;
}

.zd74ebpage-shell aside a:hover {
    text-decoration: underline;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)) !important;
    border: none !important;
}

.btn-outline-primary {
    color: var(--primary-dark) !important;
    border-color: var(--primary-color) !important;
}

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

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(var(--brand-rgb), 0.22);
}

.zd74ebsidebar-title {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.zd74ebtext-brand {
    color: var(--primary-color) !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.zd74ebhero-content,
.card.zd74ebfeature-card,
.zd74ebdownload-card,
.card.zd74ebfaq-card {
    animation: fadeIn 0.55s var(--transition-easing) forwards;
}

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

.navbar-toggler {
    border: none;
    padding: 0.45rem;
}

.navbar-collapse {
    background: rgba(255, 255, 255, 0.98);
    padding: 0.65rem;
    border-radius: var(--radius-card);
    margin-top: 0.45rem;
    border: 1px solid var(--border-subtle);
    box-sizing: border-box;
}

@media (min-width: 992px) {
    .navbar-collapse {
        background: transparent;
        border: none;
        padding: 0;
        margin-top: 0;
    }
}

.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;
}

.zd74ebthumb-home {
    border-radius: var(--radius-card) var(--radius-card) 0 0;
}

@media (max-width: 767px) {
    .zd74ebnavbar {
        padding: 0.4rem 0;
    }

    .zd74ebnavbar .navbar-collapse {
        max-height: min(72vh, 28rem);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .zd74ebnavbar .navbar-nav .nav-link {
        padding: 0.48rem 0.4rem !important;
        font-size: 0.94rem;
    }

    .zd74ebprose-section .lead {
        text-align: left;
        font-size: 0.9375rem;
        line-height: 1.72;
        max-width: none;
    }

    .zd74ebsection-head {
        margin-bottom: 1.65rem;
        text-align: left;
    }

    .zd74ebsection-head p {
        font-size: 0.9rem;
        line-height: 1.62;
    }

    .zd74ebguide-panel {
        padding: 1.15rem;
    }

    .zd74ebguide-panel h3 {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.35rem;
        font-size: 1rem;
        line-height: 1.35;
    }

    .zd74ebhero-section {
        padding-top: clamp(2rem, 7vw, 3rem);
        padding-bottom: clamp(2.25rem, 8vw, 3.5rem);
    }

    .zd74ebhero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 0.85rem;
    }

    .zd74ebhero-lead {
        font-size: 0.9rem;
    }

    .zd74ebhero-image-wrap {
        padding-top: 0.5rem;
    }

    .zd74ebhero-buttons .btn-lg {
        --bs-btn-padding-y: 0.5rem;
        --bs-btn-padding-x: 1rem;
        font-size: 0.92rem;
    }

    .zd74ebstats-section {
        padding: clamp(2rem, 5vw, 2.65rem) 0;
    }

    .zd74ebstat-label {
        max-width: none;
        font-size: 0.76rem;
        line-height: 1.32;
    }

    .zd74ebstat-number {
        font-size: clamp(1.4rem, 5.2vw, 1.85rem);
    }

    .zd74ebsecurity-section {
        padding: clamp(2rem, 5vw, 3.25rem) 0;
    }

    .zd74ebdownload-section {
        padding: clamp(2rem, 5vw, 3.25rem) 0;
    }

    .zd74ebguide-section {
        padding: clamp(2rem, 5vw, 3rem) 0;
    }

    .card.zd74ebfaq-card .card-body {
        padding: 0.9rem 1rem;
    }

    .zd74ebfooter {
        padding: 2rem 0 1.15rem;
    }

    .zd74ebfooter-bottom p.small.mb-2 {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        column-gap: 0.35rem;
        row-gap: 0.4rem;
    }

    .zd74ebfooter-bottom p.small.mb-2 > span {
        opacity: 0.45;
        flex: 0 0 auto;
    }

    .zd74ebpage-shell {
        padding-top: 1.35rem !important;
        padding-bottom: 1.85rem !important;
    }

    .zd74ebpage-shell h1.h3 {
        font-size: clamp(1.05rem, 4.5vw, 1.35rem);
        line-height: 1.35;
        word-break: break-word;
    }

    .zd74ebpage-shell header .small {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem 0.75rem;
        row-gap: 0.25rem;
    }

    .zd74ebsecurity-icon {
        width: 52px;
        height: 52px;
        font-size: 1.2rem;
    }

    #article .card-body {
        padding: 0.8rem;
    }

    #article .zd74ebthumb-home {
        height: 96px !important;
    }

    #article h3.h5,
    #article .card-body h3.h6,
    #article .card-body h3 {
        font-size: 0.94rem;
        line-height: 1.4;
        margin-bottom: 0;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .listbox .e2 li {
        padding-bottom: 0.75rem !important;
        margin-bottom: 0.75rem !important;
    }

    .listbox .e2 li h2.h5 {
        font-size: 1rem;
        margin-bottom: 0.35rem;
        line-height: 1.35;
        word-break: break-word;
    }

    .listbox .e2 li p {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .zd74ebthumb-list,
    .zd74ebthumb-related {
        height: 72px !important;
    }

    .zd74ebthumb-side {
        height: 50px !important;
    }

    .zd74ebthumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: 170px !important;
        margin: 0 auto;
    }

    .zd74ebdownload-card .card-body {
        padding: 1rem !important;
    }

    .zd74ebdownload-card .d-flex.align-items-center {
        flex-direction: column;
        text-align: center;
        gap: 0.65rem;
        margin-bottom: 1rem !important;
    }

    .zd74ebdownload-card .d-flex.align-items-center .ms-3 {
        margin-left: 0 !important;
    }

    .zd74ebplatform-icon {
        width: 50px;
        height: 50px;
        font-size: 1.1rem;
    }

    .zd74ebdownload-info {
        padding: 1rem;
    }

    .zd74ebdownload-action .btn {
        width: 100%;
        white-space: normal;
    }
}

@media (max-width: 575px) {
    #article .zd74ebthumb-home {
        height: 88px !important;
    }

    .zd74ebthumb-list,
    .zd74ebthumb-related {
        height: 64px !important;
    }

    .zd74ebthumb-side {
        height: 46px !important;
    }

    .zd74ebthumb-cover {
        height: 150px !important;
    }

    .pagebar .pagelist {
        gap: 0.35rem;
    }

    .zd74ebhero-kicker {
        font-size: 0.7rem;
        letter-spacing: 0.05em;
        line-height: 1.35;
        max-width: 100%;
    }

    .zd74ebfooter-bottom {
        font-size: 0.8125rem;
    }
}

.zd74ebinfo-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.65rem;
    gap: 0.5rem;
}

.zd74ebinfo-item:last-child {
    margin-bottom: 0;
}

.zd74ebstat-item {
    text-align: center;
    padding: 0.45rem 0.3rem;
    box-sizing: border-box;
}

.zd74ebfriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
}

.zd74ebfriend-links li {
    display: inline;
}

.zd74ebfriend-links a {
    color: #94a3b8;
    text-decoration: none;
}

.zd74ebfriend-links a:hover {
    color: var(--primary-color);
}

.zd74ebarticle-content {
    line-height: 1.75;
    word-break: break-word;
}

.zd74ebarticle-content img {
    max-width: 100%;
    height: auto;
}

.zd74ebdiyfield {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.zd74ebmeta-tags {
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.zd74ebmeta-tags .list-inline-item {
    margin-right: 0 !important;
    display: inline-block;
}

.zd74ebtagitem a {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: rgba(var(--brand-rgb), 0.1);
    color: var(--primary-dark);
    text-decoration: none;
    font-size: 0.85rem;
}

.zd74ebtagitem a:hover {
    background: rgba(var(--brand-rgb), 0.2);
}

.zd74ebpages .pagelist a {
    color: var(--primary-dark);
}

/* ========= 首页专版：深桩 / Binance 系（bnsec）========= */
.zd74ebhome-body {
    --bn-bg0: #0b0e11;
    --bn-bg1: #161a1e;
    --bn-card: #1e2329;
    --bn-line: #2b3139;
    --bn-gold: #f0b90b;
    --bn-green: #0ecb81;
    --bn-txt: #eaecef;
    --bn-muted: #848e9c;
    background: var(--bn-bg0);
    color: var(--bn-txt);
}

.zd74ebnavbar.navbar-dark {
    --bn-line: #2b3139;
    --bn-muted: #848e9c;
    --bn-gold: #f0b90b;
    background: rgba(11, 14, 17, 0.92) !important;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--bn-line);
    box-shadow: none;
}

.zd74ebnavbar.navbar-dark .zd74ebnav-link {
    color: var(--bn-muted) !important;
}

.zd74ebnavbar.navbar-dark .zd74ebnav-link:hover,
.zd74ebnavbar.navbar-dark .zd74ebnav-link:focus {
    color: var(--bn-gold) !important;
    background: rgba(240, 185, 11, 0.08);
}

.zd74ebnavbar.navbar-dark .navbar-toggler {
    border-color: rgba(240, 185, 11, 0.35);
}

.zd74ebnavbar.navbar-dark .navbar-collapse {
    background: rgba(22, 26, 30, 0.98);
    border: 1px solid var(--bn-line);
}

@media (min-width: 992px) {
    .zd74ebnavbar.navbar-dark .navbar-collapse {
        background: transparent;
        border: none;
    }
}

/* —— Hero —— */
.bnsec-hero {
    position: relative;
    overflow: clip;
    border-bottom: 1px solid var(--bn-line);
}

.bnsec-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 12% -8%, rgba(240, 185, 11, 0.14), transparent 52%),
        radial-gradient(ellipse 55% 45% at 92% 108%, rgba(14, 203, 129, 0.1), transparent 48%),
        linear-gradient(180deg, var(--bn-bg1) 0%, var(--bn-bg0) 100%);
    pointer-events: none;
}

.bnsec-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48' viewBox='0 0 48 48'%3E%3Cpath d='M0 24h48M24 0v48' stroke='%23eaecef' stroke-width='0.35'/%3E%3C/svg%3E");
    pointer-events: none;
}

.bnsec-hero__grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    min-height: min(86vh, 48rem);
}

.bnsec-hero__grid > * {
    min-width: 0;
}

@media (min-width: 992px) {
    .bnsec-hero__grid {
        grid-template-columns: 1.05fr 0.95fr;
        min-height: min(78vh, 42rem);
    }
}

.bnsec-hero__main {
    padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 3vw, 2rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
}

.bnsec-hero__k {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--bn-green);
    margin-bottom: 0.85rem;
}

.bnsec-hero__h1 {
    font-size: clamp(1.85rem, 4.8vw, 3.15rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.035em;
    margin: 0 0 1rem;
    color: var(--bn-txt);
}

.bnsec-hero__lead {
    font-size: clamp(0.98rem, 2vw, 1.12rem);
    line-height: 1.6;
    color: var(--bn-muted);
    max-width: 36rem;
    margin: 0 0 1rem;
}

.bnsec-hero__note {
    font-size: 0.86rem;
    line-height: 1.65;
    color: var(--bn-muted);
    max-width: 38rem;
    margin: 0 0 1.5rem;
}

.bnsec-hero__note strong {
    color: var(--bn-txt);
    font-weight: 600;
}

.bnsec-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.bnsec-hero__actions .btn-lg {
    border-radius: 0.35rem;
    font-weight: 700;
    padding: 0.65rem 1.25rem;
}

.bnsec-hero__actions .btn-light {
    background: var(--bn-gold);
    color: #0b0e11;
    border: none;
}

.bnsec-hero__actions .btn-light:hover {
    background: #fcd535;
    color: #0b0e11;
}

.bnsec-hero__actions .btn-primary {
    background: linear-gradient(135deg, var(--bn-green), #12d18e) !important;
    border: none !important;
    color: #0b0e11 !important;
}

.bnsec-hero__actions .btn-outline-light {
    border: 1px solid var(--bn-line);
    color: var(--bn-txt);
    background: rgba(30, 35, 41, 0.55);
}

.bnsec-hero__actions .btn-outline-light:hover {
    border-color: var(--bn-gold);
    color: var(--bn-gold);
    background: rgba(240, 185, 11, 0.06);
}

.bnsec-hero__aside {
    padding: clamp(1.5rem, 4vw, 2.75rem) clamp(1rem, 3vw, 2rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.25rem;
    border-left: 1px solid var(--bn-line);
    background: linear-gradient(165deg, rgba(22, 26, 30, 0.95), rgba(11, 14, 17, 0.4));
    box-sizing: border-box;
    min-width: 0;
    width: 100%;
}

@media (max-width: 991px) {
    .bnsec-hero__aside {
        border-left: none;
        border-top: 1px solid var(--bn-line);
    }
}

.bnsec-hero__panel {
    width: 100%;
    max-width: 100%;
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    background: var(--bn-card);
    overflow: hidden;
    box-sizing: border-box;
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
}

.bnsec-hero__panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--bn-line);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--bn-muted);
}

.bnsec-hero__panel-head span:last-child {
    color: var(--bn-green);
    font-family: ui-monospace, monospace;
    letter-spacing: 0.04em;
}

.bnsec-hero__figure {
    margin: 0;
    padding: 1rem 1rem 0;
}

.bnsec-hero__figure img {
    width: 100%;
    max-width: 20rem;
    margin: 0 auto;
    display: block;
    height: auto;
    border-radius: 0.35rem;
    box-sizing: border-box;
    box-shadow: inset 0 0 0 1px rgba(43, 49, 57, 0.85);
}

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

.bnsec-hero__ticks li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.75rem 1rem;
    font-size: 0.82rem;
    color: var(--bn-muted);
    border-top: 1px solid var(--bn-line);
    line-height: 1.45;
}

.bnsec-hero__ticks li i {
    color: var(--bn-green);
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.bnsec-hero__ticks strong {
    color: var(--bn-txt);
    font-weight: 600;
}

/* —— Strip —— */
.bnsec-strip {
    position: relative;
    z-index: 1;
    text-align: center;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--bn-bg0);
    background: linear-gradient(90deg, var(--bn-gold), #fcd535);
    padding: 0.7rem 1rem;
    border-bottom: 1px solid rgba(11, 14, 17, 0.12);
}

/* —— Section shell —— */
.bnsec-sec {
    padding: clamp(2.25rem, 5vw, 3.75rem) 0;
    border-bottom: 1px solid var(--bn-line);
}

.bnsec-sec--alt {
    background: var(--bn-bg1);
}

.bnsec-sec--cardbg {
    background: linear-gradient(180deg, var(--bn-bg0) 0%, var(--bn-bg1) 45%, var(--bn-bg0) 100%);
}

.bnsec-head {
    max-width: 40rem;
    margin-bottom: 1.75rem;
}

.bnsec-head__k {
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--bn-gold);
    margin-bottom: 0.45rem;
}

.bnsec-head__t {
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem;
    color: var(--bn-txt);
    line-height: 1.2;
}

.bnsec-head__d {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--bn-muted);
}

.bnsec-head--on-dark .bnsec-head__d {
    color: #b7bdc6;
}

/* —— Intro rail —— */
.bnsec-intro {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .bnsec-intro {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
}

.bnsec-intro__card {
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    background: var(--bn-card);
    padding: 1.15rem 1.2rem;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--bn-muted);
    box-sizing: border-box;
}

.bnsec-intro__card strong {
    color: var(--bn-txt);
}

/* —— Feature grid —— */
.bnsec-fgrid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 576px) {
    .bnsec-fgrid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .bnsec-fgrid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.bnsec-fcard {
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    background: rgba(30, 35, 41, 0.65);
    padding: 1.2rem 1.1rem;
    min-height: 0;
    box-sizing: border-box;
    transition: border-color 0.2s ease;
}

.bnsec-fcard:hover {
    border-color: rgba(240, 185, 11, 0.45);
}

.bnsec-fcard__tag {
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--bn-green);
    margin-bottom: 0.55rem;
}

.bnsec-fcard h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--bn-txt);
    line-height: 1.25;
}

.bnsec-fcard p {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.6;
    color: var(--bn-muted);
}

.bnsec-fcard--spotlight {
    border-color: rgba(240, 185, 11, 0.35);
    background: linear-gradient(145deg, rgba(240, 185, 11, 0.08), rgba(30, 35, 41, 0.85));
}

.bnsec-callout {
    margin-top: 1.5rem;
    padding: 1rem 1.15rem;
    border-radius: 0.5rem;
    border: 1px dashed rgba(240, 185, 11, 0.35);
    background: rgba(11, 14, 17, 0.5);
    font-size: 0.86rem;
    line-height: 1.65;
    color: var(--bn-muted);
    box-sizing: border-box;
}

/* —— Guide steps —— */
.bnsec-steps {
    counter-reset: bnstep;
    list-style: none;
    padding: 0;
    margin: 0;
    max-width: 46rem;
}

.bnsec-steps > li {
    position: relative;
    padding-left: 3.25rem;
    padding-bottom: 1.5rem;
    border-left: 1px solid var(--bn-line);
    margin-left: 0.85rem;
}

.bnsec-steps > li:last-child {
    border-left-color: transparent;
    padding-bottom: 0;
}

.bnsec-steps > li::before {
    counter-increment: bnstep;
    content: counter(bnstep, decimal-leading-zero);
    position: absolute;
    left: -0.85rem;
    top: 0;
    width: 1.75rem;
    height: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--bn-bg0);
    background: var(--bn-gold);
    border-radius: 0.25rem;
    border: 1px solid rgba(11, 14, 17, 0.35);
    box-sizing: border-box;
}

.bnsec-steps h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 0.45rem;
    color: var(--bn-txt);
}

.bnsec-steps p,
.bnsec-steps li {
    font-size: 0.88rem;
    color: var(--bn-muted);
    line-height: 1.65;
    margin: 0;
}

.bnsec-steps ul {
    margin: 0.4rem 0 0;
    padding-left: 1.1rem;
}

.bnsec-aside {
    margin-top: 1.5rem;
    max-width: 46rem;
    padding: 0.95rem 1.1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--bn-line);
    background: var(--bn-card);
    font-size: 0.84rem;
    line-height: 1.65;
    color: var(--bn-muted);
    box-sizing: border-box;
}

/* —— Stats —— */
.bnsec-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    padding: 1px;
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    overflow: hidden;
    box-sizing: border-box;
    background: var(--bn-line);
}

@media (min-width: 992px) {
    .bnsec-stats {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.bnsec-stats__cell {
    padding: 1.25rem 0.75rem;
    text-align: center;
    background: var(--bn-card);
    box-sizing: border-box;
    min-width: 0;
}

.bnsec-stats__num {
    font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
    font-size: clamp(1.5rem, 3.5vw, 2.1rem);
    font-weight: 700;
    color: var(--bn-gold);
    line-height: 1;
    margin-bottom: 0.4rem;
}

.bnsec-stats__lbl {
    font-size: 0.75rem;
    color: var(--bn-muted);
    line-height: 1.35;
    max-width: 12rem;
    margin: 0 auto;
}

/* —— Download —— */
.bnsec-dl {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bnsec-dl__row {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    overflow: hidden;
    background: var(--bn-card);
    box-sizing: border-box;
}

@media (min-width: 992px) {
    .bnsec-dl__row {
        grid-template-columns: auto 1fr auto;
        align-items: stretch;
    }
}

.bnsec-dl__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--bn-gold);
    background: rgba(11, 14, 17, 0.85);
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--bn-line);
}

@media (min-width: 992px) {
    .bnsec-dl__icon {
        border-bottom: none;
        border-right: 1px solid var(--bn-line);
    }
}

.bnsec-dl__body {
    padding: 1.2rem 1.15rem;
    min-width: 0;
}

.bnsec-dl__body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 0.4rem;
    color: var(--bn-txt);
}

.bnsec-dl__body > p {
    margin: 0 0 0.75rem;
    font-size: 0.86rem;
    color: var(--bn-muted);
    line-height: 1.55;
}

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

.bnsec-dl__list li {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
    font-size: 0.8rem;
    color: var(--bn-muted);
    padding: 0.35rem 0;
    border-top: 1px solid var(--bn-line);
}

.bnsec-dl__list li:first-child {
    border-top: none;
    padding-top: 0;
}

.bnsec-dl__list i {
    color: var(--bn-green);
    margin-top: 0.12rem;
    flex-shrink: 0;
}

.bnsec-dl__cta {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(22, 26, 30, 0.9);
    border-top: 1px solid var(--bn-line);
}

@media (min-width: 992px) {
    .bnsec-dl__cta {
        border-top: none;
        border-left: 1px solid var(--bn-line);
    }
}

.bnsec-dl__cta .btn {
    border-radius: 0.35rem;
    font-weight: 700;
    white-space: normal;
    text-align: center;
}

.bnsec-dl__foot {
    margin-top: 0.85rem;
    font-size: 0.82rem;
    color: var(--bn-muted);
    line-height: 1.55;
}

/* —— Security —— */
.bnsec-vgrid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .bnsec-vgrid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .bnsec-vgrid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.bnsec-vcard {
    border-radius: 0.5rem;
    border: 1px solid var(--bn-line);
    box-shadow: inset 0 2px 0 0 var(--bn-gold);
    background: rgba(30, 35, 41, 0.75);
    padding: 1.05rem 0.95rem 1.15rem;
    box-sizing: border-box;
    min-width: 0;
}

.bnsec-vcard h3 {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin: 0 0 0.65rem;
    color: var(--bn-txt);
}

.bnsec-vcard ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.bnsec-vcard li {
    font-size: 0.8rem;
    color: var(--bn-muted);
    padding: 0.35rem 0;
    border-top: 1px solid var(--bn-line);
    line-height: 1.45;
}

.bnsec-vcard li:first-child {
    border-top: none;
    padding-top: 0;
}

.bnsec-badges {
    margin-top: 1.75rem;
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .bnsec-badges {
        grid-template-columns: repeat(3, 1fr);
    }
}

.bnsec-badges__item {
    padding: 0.85rem 1rem;
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--bn-muted);
    background: var(--bn-bg1);
    box-sizing: border-box;
    min-width: 0;
}

.bnsec-badges__item strong {
    display: block;
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--bn-gold);
    margin-bottom: 0.3rem;
}

/* —— FAQ accordion —— */
.bnsec-acc .accordion-item {
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem !important;
    margin-bottom: 0.65rem;
    overflow: hidden;
    background: var(--bn-card);
    box-sizing: border-box;
}

.bnsec-acc .accordion-button {
    border-radius: 0 !important;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--bn-txt);
    background: var(--bn-card);
    box-shadow: none !important;
}

.bnsec-acc .accordion-button:not(.collapsed) {
    background: rgba(240, 185, 11, 0.08);
    color: var(--bn-gold);
}

.bnsec-acc .accordion-body {
    font-size: 0.86rem;
    line-height: 1.65;
    color: var(--bn-muted);
    border-top: 1px solid var(--bn-line);
    background: rgba(11, 14, 17, 0.35);
}

/* —— Article feed —— */
.bnsec-feed {
    padding: clamp(2.25rem, 5vw, 3.5rem) 0;
    background: var(--bn-bg1);
    border-bottom: 1px solid var(--bn-line);
}

.bnsec-feed .row > [class*="col-"] {
    min-width: 0;
}

.bnsec-feed__bar {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

@media (min-width: 768px) {
    .bnsec-feed__bar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.bnsec-feed__bar h2 {
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0;
    color: var(--bn-txt);
}

.bnsec-feed__bar .btn {
    border-radius: 0.35rem;
    font-weight: 600;
    border-color: var(--bn-gold);
    color: var(--bn-gold);
}

.bnsec-feed__bar .btn:hover {
    background: var(--bn-gold);
    color: #0b0e11;
    border-color: var(--bn-gold);
}

.zd74ebhome-body section.bnsec-feed#article .card {
    border: 1px solid var(--bn-line);
    border-radius: 0.5rem;
    background: var(--bn-card);
    overflow: hidden;
    box-sizing: border-box;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.zd74ebhome-body section.bnsec-feed#article .card-img-top {
    border-bottom: 1px solid var(--bn-line);
}

.zd74ebhome-body section.bnsec-feed#article .card-body {
    background: var(--bn-card);
}

.zd74ebhome-body section.bnsec-feed#article .text-muted {
    color: var(--bn-muted) !important;
}

.zd74ebhome-body section.bnsec-feed#article .text-body {
    color: var(--bn-txt) !important;
}

.zd74ebhome-body section.bnsec-feed#article .stretched-link::after {
    z-index: 2;
}

.zd74ebhome-body .zd74ebfooter .text-secondary {
    color: var(--bn-muted) !important;
}

/* —— Home footer tune —— */
.zd74ebhome-body .zd74ebfooter {
    background: #07090b;
    border-top: 1px solid var(--bn-line);
    color: var(--bn-muted);
}

.zd74ebhome-body .zd74ebfooter .zd74ebfooter-title {
    color: var(--bn-txt);
}

.zd74ebhome-body .zd74ebfooter-link {
    color: var(--bn-muted);
}

.zd74ebhome-body .zd74ebfooter-bottom {
    border-top-color: var(--bn-line);
}

.zd74ebhome-body .zd74ebfooter-bottom a {
    color: #b7bdc6;
}

/* —— Mobile —— */
@media (max-width: 767px) {
    .bnsec-hero__grid {
        min-height: 0;
    }

    .bnsec-hero__main {
        padding: clamp(1.35rem, 4.5vw, 2rem) clamp(0.85rem, 3.5vw, 1.15rem);
    }

    .bnsec-hero__aside {
        padding: clamp(1.15rem, 4vw, 1.75rem) clamp(0.85rem, 3.5vw, 1.15rem);
    }

    .bnsec-hero__k {
        font-size: 0.66rem;
        letter-spacing: 0.1em;
        line-height: 1.35;
    }

    .bnsec-hero__h1,
    .bnsec-hero__lead {
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    .bnsec-hero__panel-head {
        flex-wrap: wrap;
        align-items: flex-start;
        row-gap: 0.35rem;
        padding: 0.55rem 0.75rem;
        font-size: 0.62rem;
        letter-spacing: 0.08em;
    }

    .bnsec-hero__panel-head span {
        min-width: 0;
    }

    .bnsec-hero__ticks li {
        padding: 0.65rem 0.75rem;
        font-size: 0.8rem;
    }

    .bnsec-hero__ticks li span {
        min-width: 0;
    }

    .bnsec-sec {
        padding: clamp(1.65rem, 5vw, 2.6rem) 0;
    }

    .bnsec-head {
        margin-bottom: 1.25rem;
        max-width: none;
    }

    .bnsec-head__k {
        letter-spacing: 0.12em;
    }

    .bnsec-head__t {
        font-size: clamp(1.2rem, 5.2vw, 1.55rem);
    }

    .bnsec-head__d {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .bnsec-intro__card,
    .bnsec-fcard,
    .bnsec-callout,
    .bnsec-aside {
        padding-left: 0.95rem;
        padding-right: 0.95rem;
    }

    .bnsec-fcard {
        padding-top: 1.05rem;
        padding-bottom: 1.05rem;
    }

    .bnsec-stats__cell {
        padding: 1rem 0.55rem;
    }

    .bnsec-stats__num {
        font-size: clamp(1.25rem, 5vw, 1.75rem);
    }

    .bnsec-stats__lbl {
        max-width: none;
        font-size: 0.72rem;
        line-height: 1.35;
        padding: 0 0.15rem;
    }

    .bnsec-dl__body {
        padding: 1rem 0.9rem;
    }

    .bnsec-dl__icon {
        padding: 1rem 1rem;
    }

    .bnsec-vcard {
        padding: 0.95rem 0.85rem 1rem;
    }

    .bnsec-feed .row {
        --bs-gutter-x: 0.75rem;
    }

    .bnsec-feed__bar h2 {
        font-size: 1.1rem;
        line-height: 1.35;
        word-break: break-word;
    }

    .zd74ebhome-body section.bnsec-feed#article .card {
        max-width: 100%;
    }

    .zd74ebnavbar.navbar-dark .navbar-brand {
        max-width: min(11rem, calc(100vw - 5.25rem));
        min-width: 0;
    }

    .bnsec-hero__actions {
        flex-direction: column;
    }

    .bnsec-hero__actions .btn-lg {
        width: 100%;
        justify-content: center;
        min-height: 2.75rem;
    }

    .bnsec-strip {
        font-size: 0.7rem;
        line-height: 1.45;
        padding-left: max(0.75rem, env(safe-area-inset-left, 0px));
        padding-right: max(0.75rem, env(safe-area-inset-right, 0px));
    }

    .bnsec-dl__cta .btn {
        width: 100%;
    }

    .bnsec-feed__bar .btn {
        width: 100%;
        align-self: stretch;
    }

    .bnsec-acc .accordion-button {
        font-size: 0.84rem;
        white-space: normal;
        line-height: 1.4;
        padding-left: 0.85rem;
        padding-right: 2.25rem;
    }

    .bnsec-steps > li {
        padding-left: 2.65rem;
        margin-left: 0.65rem;
    }

    .bnsec-steps > li::before {
        left: -0.75rem;
        width: 1.6rem;
        height: 1.6rem;
        font-size: 0.68rem;
    }
}

@media (max-width: 575px) {
    .bnsec-hero__figure {
        padding-left: 0.65rem;
        padding-right: 0.65rem;
    }

    .bnsec-hero__figure img {
        max-width: 100%;
    }

    .bnsec-badges__item {
        padding: 0.75rem 0.85rem;
    }
}

@media (max-width: 479px) {
    .bnsec-stats {
        grid-template-columns: 1fr;
    }
}

/* —— 子页：小屏列表与侧栏 —— */
@media (max-width: 767px) {
    .zd74ebpage-shell .listbox .row {
        --bs-gutter-x: 0.65rem;
    }

    .zd74ebpage-shell .listbox .e2 li .row > [class*="col-"] {
        min-width: 0;
    }

    .zd74ebpage-shell .listbox img,
    .zd74ebpage-shell .zd74ebthumb-list,
    .zd74ebpage-shell .zd74ebthumb-related {
        max-width: 100%;
    }

    .zd74ebpage-shell aside .d-flex.gap-2 {
        gap: 0.5rem !important;
    }

    .zd74ebpage-shell aside li.d-flex > a.d-block:first-of-type {
        flex: 0 0 64px !important;
        width: 64px !important;
        max-width: 64px;
    }
}