:root {
    /* 主题：币安式深色终端 + 全新主色 #00d4aa（青绿，非旧版暖纸/铜色） */
    --primary-color: #00d4aa;
    --primary-dark: #00a884;
    --primary-rgb: 0, 212, 170;
    --secondary-color: #f1f5f9;
    --accent-color: #38bdf8;
    --surface: #0b0e11;
    --surface-elevated: #161a1e;
    --text-color: #e8eef4;
    --text-muted: #8b9aad;
    --border-subtle: rgba(139, 154, 173, 0.16);
    --border-inner: rgba(139, 154, 173, 0.08);
    --gray-100: #111418;
    --gray-200: #1a1f26;
    --transition-speed: 0.3s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --radius-card: 0.5rem;
    --radius-inner: 0.375rem;
    --shadow-soft: 0 1px 0 rgba(0, 0, 0, 0.35), 0 18px 48px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 0 0 1px rgba(0, 212, 170, 0.14), 0 18px 44px rgba(0, 0, 0, 0.4);
    --section-pad-y: clamp(2.75rem, 6vw, 4.5rem);
    --border-line: 1px solid var(--border-subtle);
    --border-inset-line: 1px solid var(--border-inner);
    /* 板块之间水平分隔：统一 1px，避免 0.08/0.12/0.15/0.22 混用 */
    --jz-section-divider: 1px solid rgba(139, 154, 173, 0.2);
    /* 卡片/数据块顶部彩色条：略细于旧 3px，与 1px 分隔线拉开层次 */
    --accent-bar: 2px;
    --hero-bar-w: 2px;
}

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

body {
    font-family: "Plus Jakarta Sans", "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, 0px);
    padding-right: env(safe-area-inset-right, 0px);
}

/* 内页浅色阅读岛：与首页深色终端区分，不改变模板结构 */
.z2b64epage-shell {
    --primary-color: #00a884;
    --primary-dark: #008f6b;
    --primary-rgb: 0, 168, 132;
    --secondary-color: #0f172a;
    --accent-color: #0284c7;
    --surface: #f1f5f9;
    --surface-elevated: #ffffff;
    --text-color: #0f172a;
    --text-muted: #475569;
    --border-subtle: rgba(15, 23, 42, 0.1);
    --border-inner: rgba(15, 23, 42, 0.06);
    --gray-100: #e2e8f0;
    --gray-200: #cbd5e1;
    --shadow-soft: 0 1px 0 rgba(15, 23, 42, 0.06), 0 12px 36px rgba(15, 23, 42, 0.06);
    --shadow-hover: 0 2px 0 rgba(0, 168, 132, 0.28), 0 18px 44px rgba(15, 23, 42, 0.1);
    background: var(--surface);
    color: var(--text-color);
    padding: clamp(2rem, 4vw, 3rem) 0;
    min-height: 50vh;
}

/* Bootstrap 栅格 + 卡片 hover 位移时防止撑出视口 */
.container .row > [class*="col-"] {
    min-width: 0;
}

/* —— 导航（深色顶栏，币安式扁平条） —— */
.z2b64enavbar {
    background: rgba(11, 14, 17, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--jz-section-divider);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    padding: 0.55rem 0;
}

.z2b64enavbar.navbar-light {
    /* 兼容旧 class：强制深色表现 */
    background: rgba(11, 14, 17, 0.92);
}

.z2b64enavbar .navbar-toggler-icon {
    filter: invert(1);
}

.z2b64enavbar-brand img {
    height: 44px;
}

.z2b64enav-link {
    color: rgba(241, 245, 249, 0.88) !important;
    font-weight: 600;
    font-size: 0.88rem;
    letter-spacing: 0.03em;
    padding: 0.45rem 0.65rem !important;
    border-radius: var(--radius-inner);
    transition: color var(--transition-speed), background var(--transition-speed);
    white-space: normal;
    word-break: break-word;
}

.z2b64enav-link:hover,
.z2b64enav-link:focus {
    color: #fff !important;
    background: rgba(0, 212, 170, 0.12);
}

/* 旧英雄区类名已弃用；首页使用 .jz-v4-hero（见文件末尾首页专块） */

/* —— 通栏导读 —— */
.z2b64eprose-section {
    background: var(--surface-elevated);
    border-bottom: var(--border-line);
    padding: clamp(2rem, 5vw, 3rem) 0;
}

.z2b64eprose-section .lead {
    color: var(--text-muted);
    max-width: 52rem;
    margin: 0 auto;
    text-align: center;
    font-size: clamp(1rem, 2.2vw, 1.125rem);
}

/* —— 分区标题 —— */
.z2b64esection-head {
    text-align: center;
    max-width: 40rem;
    margin: 0 auto 2.5rem;
}

.z2b64esection-head h2 {
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    letter-spacing: -0.02em;
}

.z2b64esection-head p {
    color: var(--text-muted);
    margin: 0;
    font-size: 1rem;
}

/* —— 特点卡片（与 Bootstrap .card 组合，保证边框圆角不被覆盖） —— */
.card.z2b64efeature-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: var(--border-line);
    height: 100%;
    background: var(--surface-elevated);
    overflow: clip;
    box-sizing: border-box;
}

.card.z2b64efeature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.z2b64efeature-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    background: rgba(var(--primary-rgb), 0.12);
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-inner);
    margin: 0 auto 1.25rem;
}

/* —— 统计数据（浅色报头风，与旧版深色渐变区分） —— */
.z2b64estats-section {
    background: linear-gradient(180deg, #0e1115 0%, #12161c 100%);
    color: var(--text-color);
    padding: var(--section-pad-y) 0;
    position: relative;
    overflow: hidden;
    border-top: var(--jz-section-divider);
    border-bottom: var(--jz-section-divider);
}

.z2b64estats-section::before {
    display: none;
}

.z2b64estats-section .container {
    position: relative;
    z-index: 1;
}

.z2b64estat-number {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--primary-color);
}

.z2b64estat-label {
    font-size: clamp(0.8125rem, 2vw, 1rem);
    opacity: 1;
    color: var(--text-muted);
    max-width: 14rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.35;
}

/* —— 下载区 —— */
.z2b64edownload-section {
    padding: var(--section-pad-y) 0;
    background: linear-gradient(180deg, var(--surface) 0%, #0e1218 100%);
    border-bottom: var(--jz-section-divider);
}

.z2b64edownload-header h2 {
    color: var(--secondary-color);
    font-weight: 700;
}

.z2b64edownload-subtitle {
    color: var(--text-muted);
}

.z2b64edownload-card {
    border: var(--border-line);
    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;
}

.z2b64edownload-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.z2b64eplatform-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-inner);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.z2b64eios-icon {
    background: linear-gradient(135deg, #334155, #0f172a);
    color: #fff;
}

.z2b64eandroid-icon {
    background: linear-gradient(135deg, #00b894, #006b52);
    color: #fff;
}

.z2b64edownload-info {
    background: rgba(var(--primary-rgb), 0.06);
    padding: 1.25rem;
    border-radius: var(--radius-inner);
    border: var(--border-inset-line);
    box-sizing: border-box;
}

.z2b64einfo-item i {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.15em;
}

.z2b64einfo-item span {
    min-width: 0;
}

.z2b64edownload-action .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
}

/* —— 新手指引 / 双栏 —— */
.z2b64eguide-section {
    padding: var(--section-pad-y) 0;
    background: var(--surface-elevated);
}

.z2b64eguide-panel {
    border-radius: var(--radius-card);
    border: var(--border-line);
    padding: 1.5rem;
    height: 100%;
    background: var(--gray-100);
    box-sizing: border-box;
    overflow: clip;
}

.z2b64eguide-panel h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.z2b64eguide-panel ol,
.z2b64eguide-panel ul {
    padding-left: 1.1rem;
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.z2b64eguide-panel li {
    margin-bottom: 0.5rem;
}

/* —— 安全区 —— */
.z2b64esecurity-section {
    padding: var(--section-pad-y) 0;
    background: #0a0d10;
}

.z2b64esecurity-header h2 {
    color: var(--secondary-color);
    font-weight: 700;
}

.z2b64esecurity-subtitle {
    color: var(--text-muted);
}

.z2b64esecurity-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-card);
    padding: 1.5rem;
    height: 100%;
    box-shadow: var(--shadow-soft);
    border: var(--border-line);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-sizing: border-box;
    overflow: clip;
}

.z2b64esecurity-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.z2b64esecurity-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 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
}

.z2b64esecurity-card h3 {
    color: var(--secondary-color);
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
}

.z2b64esecurity-features {
    background: rgba(var(--primary-rgb), 0.06);
    padding: 1.1rem 1.2rem;
    border-radius: var(--radius-inner);
    border: var(--border-inset-line);
    box-sizing: border-box;
}

.z2b64efeature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.z2b64efeature-item:last-child {
    margin-bottom: 0;
}

.z2b64efeature-item span {
    min-width: 0;
}

.z2b64efeature-item i {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.15em;
}

.z2b64esecurity-certificates {
    margin-top: 3rem;
}

.z2b64ecertificate-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-card);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
    border: var(--border-line);
    height: 100%;
    transition: transform 0.25s ease;
    box-sizing: border-box;
    overflow: clip;
}

.z2b64ecertificate-card:hover {
    transform: translateY(-2px);
}

.z2b64ecertificate-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-inner);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
}

.z2b64ecertificate-card h4 {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1.05rem;
}

.z2b64ecertificate-card p {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.9rem;
}

/* —— FAQ 卡片 —— */
.card.z2b64efaq-card {
    border: var(--border-line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    transition: box-shadow 0.25s ease;
    overflow: clip;
    box-sizing: border-box;
}

.card.z2b64efaq-card:hover {
    box-shadow: var(--shadow-hover);
}

.card.z2b64efaq-card .card-title {
    color: var(--secondary-color);
    font-size: 1rem;
    font-weight: 600;
}

/* —— 文章区 —— */
#article .card {
    border: var(--border-line);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    box-sizing: border-box;
}

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

/* FAQ 与上一区块分隔 */
section#faq {
    border-top: var(--jz-section-divider);
}

/* —— 页脚 —— */
.z2b64efooter {
    background: #060809;
    padding: 3rem 0 1.5rem;
    color: #94a3b8;
}

.z2b64efooter .z2b64efooter-title {
    color: #f8fafc;
}

.z2b64efooter-link {
    color: #94a3b8;
}

.z2b64efooter-link:hover {
    color: var(--primary-color);
}

.z2b64efooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
}

.z2b64efooter-bottom a {
    color: #cbd5e1;
}

.z2b64efooter-bottom a:hover {
    color: var(--primary-color);
}

.z2b64epage-shell .card {
    border: var(--border-line);
    border-radius: var(--radius-card);
    overflow: clip;
    box-sizing: border-box;
}

.z2b64epage-shell .card.shadow-sm {
    box-shadow: var(--shadow-soft) !important;
}

.z2b64epage-shell aside a {
    color: var(--primary-dark);
    text-decoration: none;
}

.z2b64epage-shell aside a:hover {
    text-decoration: underline;
}

/* —— 按钮与表单 —— */
.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(--primary-rgb), 0.25);
}

/* —— 内页侧栏标题 —— */
.z2b64esidebar-title {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: var(--border-line);
}

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

.jz-v4-wrap > section,
.jz-v4-wrap > header,
.card.z2b64efeature-card,
.z2b64edownload-card,
.card.z2b64efaq-card {
    animation: fadeIn 0.55s var(--transition-easing) forwards;
}

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

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

.navbar-collapse {
    background: rgba(22, 26, 30, 0.98);
    padding: 0.65rem 0.5rem;
    border-radius: var(--radius-card);
    margin-top: 0.5rem;
    border: var(--border-line);
    box-sizing: border-box;
}

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

/* 列表页分页 */
.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;
}

/* 缩略图 */
.z2b64ethumb-home {
    border-radius: var(--radius-card) var(--radius-card) 0 0;
}

@media (max-width: 767px) {
    .z2b64enavbar {
        padding: 0.45rem 0;
    }

    .z2b64enavbar .navbar-brand {
        max-width: min(200px, 58vw);
        flex-shrink: 1;
    }

    .z2b64enavbar .navbar-brand img {
        max-width: 100%;
        height: auto;
    }

    .z2b64enavbar .navbar-collapse {
        max-height: 72vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .z2b64enavbar .navbar-nav .nav-link {
        padding: 0.55rem 0.5rem !important;
        font-size: 0.95rem;
        min-height: 2.75rem;
        display: flex;
        align-items: center;
    }

    .z2b64eprose-section .lead {
        text-align: left;
        font-size: 0.9375rem;
        line-height: 1.7;
        max-width: none;
    }

    .jz-v4-band__text {
        font-size: 0.88rem;
        padding: 0 0.25rem;
    }

    .jz-v4-fcard__text {
        font-size: 0.88rem;
    }

    .jz-v4-lane {
        padding: 1.1rem 1rem;
    }

    .jz-v4-hero__actions .btn {
        width: 100%;
    }

    .jz-v4-hero__actions {
        flex-direction: column;
    }

    .z2b64earticle-zone .d-flex.flex-column.flex-md-row {
        align-items: stretch !important;
    }

    .z2b64earticle-zone .btn {
        width: 100%;
    }

    .z2b64esection-head {
        margin-bottom: 1.75rem;
        padding-left: 0.25rem;
        padding-right: 0.25rem;
    }

    .z2b64esection-head p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .z2b64eguide-panel {
        padding: 1.15rem;
    }

    .z2b64eguide-panel h3 {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.35rem;
        font-size: 1.02rem;
        line-height: 1.35;
    }

    .jz-v4-hero {
        padding-top: clamp(2rem, 6vw, 3rem);
        padding-bottom: clamp(2.25rem, 7vw, 3.5rem);
    }

    .jz-v4-title {
        font-size: clamp(1.65rem, 6vw, 2.35rem);
    }

    .jz-v4-lead {
        font-size: 0.95rem;
    }

    .jz-v4-portrait {
        max-width: min(260px, 100%);
        margin-left: auto;
        margin-right: auto;
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.36);
    }

    .z2b64estats-section {
        padding: clamp(2rem, 5vw, 2.75rem) 0;
    }

    .z2b64estat-label {
        max-width: none;
        font-size: 0.78rem;
        line-height: 1.35;
    }

    .z2b64estat-number {
        font-size: clamp(1.45rem, 5.5vw, 1.95rem);
    }

    .z2b64estat-item {
        min-height: 7rem;
        padding: 0.85rem 0.5rem;
    }

    .z2b64esecurity-section {
        padding-top: clamp(2.25rem, 5vw, 3.5rem);
        padding-bottom: clamp(2.25rem, 5vw, 3.5rem);
    }

    .z2b64edownload-section {
        padding-top: clamp(2.25rem, 5vw, 3.5rem);
        padding-bottom: clamp(2.25rem, 5vw, 3.5rem);
    }

    .z2b64eguide-section {
        padding-top: clamp(2.25rem, 5vw, 3.25rem);
        padding-bottom: clamp(2.25rem, 5vw, 3.25rem);
    }

    .card.z2b64efaq-card .card-body {
        padding: 0.85rem 1rem;
    }

    .z2b64efooter {
        padding: 2rem 0 1.15rem;
    }

    .z2b64efooter-bottom p.small.mb-2 {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        column-gap: 0.35rem;
        row-gap: 0.4rem;
    }

    .z2b64efooter-bottom p.small.mb-2 > span {
        opacity: 0.45;
        flex: 0 0 auto;
    }

    .z2b64epage-shell {
        padding-top: 1.5rem !important;
        padding-bottom: 2rem !important;
    }

    .z2b64epage-shell h1.h3 {
        font-size: clamp(1.05rem, 4.5vw, 1.35rem);
        line-height: 1.35;
        word-break: break-word;
    }

    .z2b64epage-shell header .small {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem 0.75rem;
        row-gap: 0.25rem;
    }

    .z2b64esecurity-icon {
        width: 60px;
        height: 60px;
        font-size: 1.45rem;
    }

    #article .card-body {
        padding: 0.75rem;
    }

    #article .z2b64ethumb-home {
        height: 96px !important;
    }

    #article h3.h5,
    #article .card-body h3.h6,
    #article .card-body h3 {
        font-size: 0.95rem;
        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;
    }

    .z2b64ethumb-list,
    .z2b64ethumb-related {
        height: 72px !important;
    }

    .z2b64ethumb-side {
        height: 50px !important;
    }

    .z2b64ethumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: 170px !important;
        margin: 0 auto;
    }

    .z2b64edownload-card .card-body {
        padding: 1rem !important;
    }

    .z2b64edownload-card .d-flex.align-items-center {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
        margin-bottom: 1rem !important;
    }

    .z2b64edownload-card .d-flex.align-items-center .ms-3 {
        margin-left: 0 !important;
    }

    .z2b64eplatform-icon {
        width: 52px;
        height: 52px;
        font-size: 1.15rem;
    }

    .z2b64edownload-info {
        padding: 1rem;
    }

    .z2b64edownload-action .btn {
        width: 100%;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
    }

    .jz-v4-kicker {
        white-space: normal;
        text-align: center;
        justify-content: center;
        max-width: 100%;
        letter-spacing: 0.1em;
        line-height: 1.4;
    }

    .jz-v4-note {
        padding-left: 0.85rem;
        border-left-width: 2px;
    }

    .jz-v4-fsection__intro h2,
    .jz-v4-lanes__head h2 {
        line-height: 1.2;
    }

    .z2b64edownload-section > .container > p.text-muted,
    .z2b64edownload-section > .container > p.small {
        padding-left: 0.125rem;
        padding-right: 0.125rem;
    }

    .z2b64ecertificate-card {
        padding: 1.2rem 1rem;
    }

    .jz-v4-spotlight,
    .jz-v4-fsection,
    .jz-v4-lanes,
    .jz-v4-guide {
        padding-top: clamp(2rem, 5vw, 3.25rem);
        padding-bottom: clamp(2rem, 5vw, 3.25rem);
    }

    .jz-v4-band {
        padding: 1rem 0;
    }

    .jz-v4-spot {
        padding: 1.15rem 1rem;
    }

    .jz-v4-fsection__intro {
        margin-bottom: 1.65rem;
        padding: 0 0.125rem;
    }

    .jz-v4-fcard {
        padding: 1.2rem 1.05rem;
    }

    .jz-v4-lanes__head {
        margin-bottom: 1.5rem;
        padding: 0 0.125rem;
    }

    .jz-v4-secgrid .z2b64esecurity-card {
        text-align: left;
    }

    .jz-v4-secgrid .z2b64esecurity-icon {
        margin-left: 0;
        margin-right: auto;
        margin-bottom: 0.85rem;
    }

    .jz-v4-secgrid .z2b64esecurity-card h3 {
        text-align: left;
    }

    .jz-v4-board .jz-v4-board__bar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.65rem;
    }

    .jz-v4-board .jz-v4-board__bar h2 {
        font-size: 1.2rem;
    }

    .jz-v4-board .jz-v4-board__bar .btn {
        width: 100%;
        align-self: stretch;
    }

    .z2b64efriend-links a {
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    .z2b64efooter-link {
        display: inline-block;
        padding: 0.15rem 0;
    }

    .jz-v4-faq .card-title {
        word-break: break-word;
        line-height: 1.4;
    }
}

@media (max-width: 575px) {
    #article .z2b64ethumb-home {
        height: 88px !important;
    }

    .z2b64ethumb-list,
    .z2b64ethumb-related {
        height: 64px !important;
    }

    .z2b64ethumb-side {
        height: 46px !important;
    }

    .z2b64ethumb-cover {
        height: 150px !important;
    }

    .pagebar .pagelist {
        gap: 0.35rem;
    }

    .z2b64estat-item {
        min-height: 6.25rem;
        padding: 0.75rem 0.4rem;
    }

    .jz-v4-kicker {
        font-size: 0.72rem;
        letter-spacing: 0.08em;
        line-height: 1.35;
        max-width: 100%;
    }

    .jz-v4-fcard h3 {
        font-size: 0.98rem;
    }

    .jz-v4-spot h3 {
        font-size: 0.95rem;
    }

    .jz-v4-portrait {
        box-shadow: 0 10px 28px rgba(0, 0, 0, 0.38);
    }

    .z2b64enavbar-brand img {
        max-height: 40px;
        width: auto;
    }

    /* 页脚多列在特窄屏下改为整宽，避免两列挤字 */
    .z2b64efooter .row.gy-4 > [class*="col-"] {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z2b64efooter-bottom {
        font-size: 0.8125rem;
    }
}

.z2b64einfo-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.z2b64einfo-item:last-child {
    margin-bottom: 0;
}

.z2b64estat-item {
    text-align: center;
    padding: 1.25rem 0.85rem;
    box-sizing: border-box;
    background: var(--surface-elevated);
    border: var(--border-line);
    border-top: var(--accent-bar) solid var(--primary-color);
    border-radius: var(--radius-card);
    height: 100%;
    min-height: 8.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: clip;
}

.z2b64efriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
}

.z2b64efriend-links li {
    display: inline;
}

.z2b64efriend-links a {
    color: #94a3b8;
    text-decoration: none;
}

.z2b64efriend-links a:hover {
    color: var(--primary-color);
}

.z2b64earticle-content {
    line-height: 1.75;
    word-break: break-word;
}

.z2b64earticle-content img {
    max-width: 100%;
    height: auto;
}

.z2b64ediyfield {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.z2b64emeta-tags {
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.z2b64emeta-tags .list-inline-item {
    margin-right: 0 !important;
    display: inline-block;
}

.z2b64etagitem a {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: rgba(var(--primary-rgb), 0.12);
    color: var(--primary-dark);
    text-decoration: none;
    font-size: 0.85rem;
}

.z2b64etagitem a:hover {
    background: rgba(var(--primary-rgb), 0.22);
}

.z2b64epages .pagelist a {
    color: var(--primary-dark);
}

/* —— 首页 v4：编辑／印刷风（竖条、时间线、窄栏标题），与 Bento 模板区分 —— */
.z2b64esection-shell {
    padding: var(--section-pad-y) 0;
}

.z2b64esection-shell.z2b64ealt-surface {
    background: var(--surface-elevated);
}

.z2b64earticle-zone {
    background: linear-gradient(180deg, #0d1116 0%, #0b0e11 100%);
    border-top: var(--jz-section-divider);
}

.z2b64earticle-zone .z2b64esection-head {
    text-align: left;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .z2b64earticle-zone .z2b64esection-head {
        margin-bottom: 2rem;
    }
}

.jz-v4-wrap {
    overflow-x: hidden;
}

/* 长 URL / 英文在窄屏下可断行 */
.jz-v4-lead,
.jz-v4-note,
.jz-v4-spot p,
.jz-v4-band__text,
.jz-v4-fsection__intro p,
.jz-v4-fcard__text,
.jz-v4-lanes__head p,
.jz-v4-lane ul {
    overflow-wrap: break-word;
    word-break: break-word;
}

.jz-v4-title,
.jz-v4-fsection__intro h2,
.jz-v4-lanes__head h2,
.jz-v4-lane h3,
.jz-v4-fcard h3,
.jz-v4-spot h3 {
    word-break: break-word;
    overflow-wrap: break-word;
}

/* —— 首屏：深色渐变 + 右侧浮窗图 —— */
.jz-v4-hero {
    position: relative;
    padding: clamp(2.75rem, 8vw, 5rem) 0 clamp(2.5rem, 6vw, 4.25rem);
    border-bottom: var(--jz-section-divider);
    background:
        radial-gradient(ellipse 120% 80% at 100% 0%, rgba(0, 212, 170, 0.14) 0%, transparent 52%),
        radial-gradient(ellipse 90% 60% at 0% 100%, rgba(56, 189, 248, 0.08) 0%, transparent 45%),
        linear-gradient(165deg, #0f1419 0%, #0b0e11 48%, #080a0c 100%);
    overflow: hidden;
}

.jz-v4-hero::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: var(--hero-bar-w);
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), transparent 70%);
    opacity: 0.85;
}

.jz-v4-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--primary-color);
    margin-bottom: 0.85rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    border: var(--border-line);
    background: rgba(0, 212, 170, 0.06);
}

.jz-v4-title {
    font-size: clamp(2.05rem, 5.2vw, 3.25rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.jz-v4-lead {
    font-size: clamp(0.98rem, 2vw, 1.12rem);
    color: rgba(232, 238, 244, 0.82);
    max-width: 36rem;
    margin-bottom: 0.85rem;
}

.jz-v4-note {
    color: var(--text-muted);
    border-left: var(--accent-bar) solid rgba(0, 212, 170, 0.55);
    padding-left: 1rem;
    max-width: 38rem;
    font-size: 0.9rem;
}

.jz-v4-hero__list {
    list-style: none;
    padding: 0;
    margin: 1.15rem 0 0;
    display: grid;
    gap: 0.45rem;
}

.jz-v4-hero__list li {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    font-size: 0.84rem;
    color: rgba(232, 238, 244, 0.78);
    overflow-wrap: break-word;
    word-break: break-word;
}

.jz-v4-hero__list li::before {
    content: "";
    width: 5px;
    height: 5px;
    margin-top: 0.5em;
    flex-shrink: 0;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 212, 170, 0.5);
}

.jz-v4-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.45rem;
}

.jz-v4-hero__actions .btn {
    border-radius: 0.5rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    padding: 0.62rem 1.2rem;
}

.jz-v4-hero__actions .btn-primary {
    box-shadow: 0 0 24px rgba(0, 212, 170, 0.25);
}

.jz-v4-hero__actions .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.22);
    color: #f8fafc;
}

.jz-v4-hero__actions .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
    color: #fff;
}

.jz-v4-portrait {
    position: relative;
    padding: 0.5rem;
    background: linear-gradient(145deg, rgba(0, 212, 170, 0.12), rgba(22, 26, 30, 0.95));
    border: var(--border-line);
    border-radius: 1rem;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.38);
    transform: none;
    max-width: min(320px, calc(100% - 0.5rem));
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

.jz-v4-portrait img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0.65rem;
}

/* —— 三卡速览 —— */
.jz-v4-spotlight {
    padding: var(--section-pad-y) 0;
    background: #0a0d10;
    border-bottom: var(--jz-section-divider);
}

.jz-v4-spot {
    height: 100%;
    padding: 1.35rem 1.25rem;
    border-radius: var(--radius-card);
    border: var(--border-line);
    background: rgba(22, 26, 30, 0.65);
    box-sizing: border-box;
    min-width: 0;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.jz-v4-spot:hover {
    border-color: rgba(0, 212, 170, 0.35);
    box-shadow: var(--shadow-soft);
}

.jz-v4-spot__icon {
    width: 44px;
    height: 44px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    background: rgba(0, 212, 170, 0.1);
    border: var(--border-inset-line);
}

.jz-v4-spot h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.jz-v4-spot p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.65;
    color: var(--text-muted);
}

/* —— 窄幅提示条 —— */
.jz-v4-band {
    padding: 1.15rem 0;
    background: rgba(0, 212, 170, 0.06);
    border-bottom: var(--jz-section-divider);
}

.jz-v4-band__text {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.65;
    color: rgba(232, 238, 244, 0.88);
    text-align: center;
    max-width: 56rem;
    margin-left: auto;
    margin-right: auto;
}

/* —— 能力矩阵：三列卡片 —— */
.jz-v4-fsection {
    padding: var(--section-pad-y) 0;
    background: var(--surface);
}

.jz-v4-fsection__intro {
    max-width: 40rem;
    margin: 0 auto 2rem;
    text-align: center;
}

.jz-v4-fsection__intro h2 {
    font-weight: 800;
    color: var(--secondary-color);
    font-size: clamp(1.45rem, 3.2vw, 2rem);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.jz-v4-fsection__intro p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.jz-v4-fcard {
    height: 100%;
    padding: 1.35rem 1.25rem;
    border-radius: var(--radius-card);
    border: var(--border-line);
    background: var(--surface-elevated);
    box-sizing: border-box;
    min-width: 0;
    position: relative;
    overflow: hidden;
}

.jz-v4-fcard::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: var(--accent-bar);
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0.85;
}

.jz-v4-fcard__tag {
    font-family: ui-monospace, "Cascadia Mono", monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: rgba(0, 212, 170, 0.75);
    margin-bottom: 0.65rem;
}

.jz-v4-fcard h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.45rem;
}

.jz-v4-fcard__text {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
}

.jz-v4-lanes {
    padding: var(--section-pad-y) 0;
    background: var(--gray-100);
    border-top: var(--jz-section-divider);
}

.jz-v4-lanes__head {
    max-width: 38rem;
    margin: 0 auto 2rem;
    text-align: center;
}

.jz-v4-lanes__head h2 {
    font-weight: 800;
    color: var(--secondary-color);
    font-size: clamp(1.4rem, 3vw, 1.85rem);
    letter-spacing: -0.02em;
}

.jz-v4-lanes__head p {
    margin: 0.5rem 0 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.jz-v4-lane {
    background: rgba(22, 26, 30, 0.85);
    border: var(--border-line);
    border-radius: var(--radius-card);
    padding: 1.35rem 1.2rem;
    height: 100%;
    box-sizing: border-box;
    overflow: clip;
    border-top: var(--accent-bar) solid var(--primary-color);
}

.jz-v4-lane--b {
    border-top-color: var(--accent-color);
}

.jz-v4-lane--c {
    border-top-color: #64748b;
}

.jz-v4-lane h3 {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.jz-v4-lane ul {
    margin: 0;
    padding-left: 1.05rem;
    color: var(--text-muted);
    font-size: 0.86rem;
    line-height: 1.62;
}

/* —— 开户：双栏面板（非时间线） —— */
.jz-v4-guide {
    padding: var(--section-pad-y) 0;
    background: linear-gradient(180deg, #0d1116 0%, #0b0e11 100%);
    border-top: var(--jz-section-divider);
}

.jz-v4-guide .z2b64eguide-panel {
    border: var(--border-line);
    background: rgba(22, 26, 30, 0.55);
    color: var(--text-muted);
}

.jz-v4-guide .z2b64eguide-panel h3 {
    color: var(--secondary-color);
}

.jz-v4-guide .z2b64eguide-panel h3 .text-primary {
    color: var(--primary-color) !important;
}

.jz-v4-board {
    border-top: var(--accent-bar) solid var(--primary-color);
}

.jz-v4-board .jz-v4-board__bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: var(--border-line);
}

.jz-v4-board .jz-v4-board__bar h2 {
    font-weight: 800;
    color: var(--secondary-color);
    margin: 0;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
}

.z2b64estats-section .text-muted,
.z2b64edownload-section .text-muted,
.z2b64esecurity-section .text-muted {
    color: var(--text-muted) !important;
}

.z2b64estats-section h2.text-dark {
    color: var(--secondary-color) !important;
}

.jz-v4-faq {
    background: var(--gray-100);
}

.jz-v4-faq .z2b64esection-head .text-muted {
    color: var(--text-muted) !important;
}

.jz-v4-faq .card-title {
    color: var(--secondary-color);
}

.jz-v4-faq .card-text.text-muted {
    color: var(--text-muted) !important;
}

#article.jz-v4-board .card {
    background: var(--surface-elevated);
    border-color: var(--border-subtle);
}

#article.jz-v4-board .card a.text-body {
    color: var(--secondary-color) !important;
}

#article.jz-v4-board .small.text-muted {
    color: var(--text-muted) !important;
}

.jz-v4-board .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.28);
    color: #f8fafc;
}

.jz-v4-board .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff;
}

.jz-v4-secgrid .z2b64esecurity-card {
    text-align: left;
}

@media (min-width: 768px) {
    .jz-v4-secgrid .z2b64esecurity-card {
        display: flex;
        flex-direction: row;
        align-items: flex-start;
        gap: 1rem;
    }

    .jz-v4-secgrid .z2b64esecurity-icon {
        margin: 0;
        flex-shrink: 0;
    }

    .jz-v4-secgrid .z2b64esecurity-card h3 {
        text-align: left;
        margin-top: 0.15rem;
    }
}

.jz-v4-faq .card.z2b64efaq-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-card);
    border: var(--border-line);
    border-left-width: var(--accent-bar);
    border-left-color: var(--primary-color);
    box-shadow: none;
}

.jz-v4-faq .card.z2b64efaq-card:hover {
    box-shadow: var(--shadow-soft);
}

.z2b64enavbar .navbar-toggler {
    border: var(--border-line);
}

.z2b64enavbar .navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-rgb), 0.25);
}