:root {
    --primary-color: #9f1239;
    --primary-dark: #881337;
    --primary-rgb: 159, 18, 57;
    --secondary-color: #1c1917;
    --accent-color: #c9a227;
    --surface: #faf7f2;
    --surface-elevated: #ffffff;
    --text-color: #1c1917;
    --text-muted: #57534e;
    --border-subtle: rgba(28, 25, 23, 0.12);
    --border-inner: rgba(28, 25, 23, 0.08);
    --border-card: 1px solid var(--border-subtle);
    --accent-bar-width: 4px;
    --gray-100: #f5f0e8;
    --gray-200: #e7e0d5;
    --transition-speed: 0.3s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --radius-card: 6px;
    --radius-inner: 4px;
    --shadow-soft: 0 1px 0 rgba(28, 25, 23, 0.06), 0 12px 40px rgba(28, 25, 23, 0.06);
    --shadow-hover: 0 2px 0 rgba(28, 25, 23, 0.08), 0 20px 50px rgba(28, 25, 23, 0.08);
    --section-pad-y: clamp(2.75rem, 6vw, 4.75rem);
}

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;
}

/* —— 导航 —— */
.zaf84dnavbar {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: var(--border-card);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
    padding: 0.6rem 0;
}

.zaf84dnavbar-brand img {
    height: 44px;
    width: auto;
    max-height: 44px;
    object-fit: contain;
}

.zaf84dnav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.5rem 0.75rem !important;
    border-radius: var(--radius-inner);
    transition: color var(--transition-speed), background var(--transition-speed);
    white-space: normal;
    word-break: break-word;
}

.zaf84dnav-link:hover {
    color: var(--primary-dark) !important;
    background: rgba(var(--primary-rgb), 0.08);
}

/* —— 英雄区：暖纸编辑式 —— */
.zaf84dhero-section {
    background: linear-gradient(165deg, #fdfcfa 0%, var(--gray-100) 48%, #efe6dc 100%);
    color: var(--text-color);
    padding: clamp(3rem, 8vw, 5.25rem) 0;
    position: relative;
    overflow-x: hidden;
    overflow-y: visible;
    border-bottom: var(--border-card);
}

.zaf84dhero-section::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--accent-bar-width);
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    pointer-events: none;
}

.zaf84dhero-copy {
    position: relative;
    z-index: 1;
    padding-left: calc(var(--accent-bar-width) + min(1rem, 2.5vw));
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dhero-section .col-lg-5 {
    min-width: 0;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
}

.zaf84dhero-eyebrow {
    font-family: ui-monospace, "Cascadia Code", "Consolas", monospace;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--primary-dark);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.zaf84dhero-title {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    margin-bottom: 0.85rem;
    line-height: 1.08;
    letter-spacing: -0.035em;
    color: var(--secondary-color);
    max-width: 100%;
    overflow-wrap: anywhere;
}

.zaf84dhero-subtitle {
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
    margin-bottom: 1.25rem;
    color: var(--text-muted);
    max-width: 40rem;
    font-weight: 500;
}

.zaf84dhero-abstract {
    font-size: 0.95rem;
    line-height: 1.75;
    color: var(--text-muted);
    max-width: 42rem;
}

.zaf84dhero-abstract p {
    margin-bottom: 0.85rem;
}

.zaf84dhero-abstract p:last-child {
    margin-bottom: 0;
}

.zaf84dhero-abstract strong {
    color: var(--text-color);
    font-weight: 600;
}

.zaf84dhero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.35rem;
}

.zaf84dhero-buttons .btn {
    padding: 0.55rem 1.2rem;
    border-radius: var(--radius-inner);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.zaf84dhero-buttons .btn-primary {
    border: none;
}

.zaf84dhero-buttons .btn-outline-primary {
    background: var(--surface-elevated);
    border-width: 2px;
}

.zaf84dhero-frame {
    margin: 0;
    position: relative;
    z-index: 1;
    padding: 0.65rem;
    box-sizing: border-box;
}

.zaf84dhero-frame-inner {
    background: var(--surface-elevated);
    padding: 1rem;
    border: var(--border-card);
    box-shadow: var(--shadow-soft);
    transform: rotate(-1deg);
    transition: transform var(--transition-speed) var(--transition-easing);
    box-sizing: border-box;
    max-width: 100%;
}

.zaf84dhero-frame:hover .zaf84dhero-frame-inner {
    transform: rotate(0deg);
}

.zaf84dhero-image {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    display: block;
    height: auto;
    border-radius: 2px;
    object-fit: contain;
}

.zaf84dhero-caption {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 1rem;
    line-height: 1.5;
    max-width: 22rem;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.zaf84dhero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem 1rem;
    margin: 1.75rem 0 0;
    padding: 1rem 0 0;
    border-top: 1px solid var(--border-inner);
}

.zaf84dhero-meta div {
    min-width: 0;
}

.zaf84dhero-meta dt {
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary-dark);
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.zaf84dhero-meta dd {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* —— 通栏导读：双栏 —— */
.zaf84dprose-section {
    background: var(--surface-elevated);
    border-bottom: var(--border-card);
    padding: var(--section-pad-y) 0;
}

.zaf84dprose-columns {
    column-count: 1;
    column-gap: 2.5rem;
}

@media (min-width: 768px) {
    .zaf84dprose-columns {
        column-count: 2;
    }

    .zaf84dprose-columns .lead {
        break-inside: avoid;
    }
}

.zaf84dprose-section .lead {
    color: var(--text-muted);
    max-width: none;
    margin: 0;
    text-align: left;
    font-size: clamp(0.98rem, 2vw, 1.08rem);
    line-height: 1.75;
}

/* —— 分区标题 —— */
.zaf84dsection-head {
    text-align: center;
    max-width: 44rem;
    margin: 0 auto 2.25rem;
}

.zaf84dsection-head h2 {
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: clamp(1.35rem, 3vw, 1.9rem);
    letter-spacing: -0.025em;
}

.zaf84dsection-head p {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.98rem;
    line-height: 1.65;
}

.zaf84dsection-head--rail {
    display: flex;
    gap: 1rem;
    text-align: left;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    align-items: flex-start;
}

.zaf84dsection-rail {
    width: var(--accent-bar-width);
    flex: 0 0 var(--accent-bar-width);
    height: 2.75rem;
    align-self: flex-start;
    margin-top: 0.35rem;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.zaf84dsection-head--rail > div:last-child {
    min-width: 0;
    flex: 1;
}

.zaf84dsection-head--rail h2,
.zaf84dsection-head--rail p {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dsection-head-left {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    max-width: none;
}

/* —— 首页内容带 —— */
.zaf84dhome-band {
    padding: var(--section-pad-y) 0;
}

.zaf84dhome-band--muted {
    background: var(--gray-100);
    border-top: var(--border-card);
    border-bottom: var(--border-card);
}

.zaf84dhome-band--surface {
    background: var(--surface-elevated);
    border-top: var(--border-card);
}

/* —— 能力条带 —— */
.zaf84dfeat-band {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem 1.25rem;
    padding: 1.35rem 0;
    border-bottom: 1px solid var(--border-inner);
    box-sizing: border-box;
}

.zaf84dfeat-band:last-of-type {
    border-bottom: none;
}

.zaf84dfeat-num {
    font-family: ui-monospace, "Consolas", monospace;
    font-size: 1.75rem;
    font-weight: 800;
    color: rgba(var(--primary-rgb), 0.25);
    line-height: 1;
    padding-top: 0.15rem;
    flex-shrink: 0;
}

.zaf84dfeat-body {
    min-width: 0;
}

.zaf84dfeat-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dfeat-text {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dnote-rail {
    border: var(--border-card);
    border-left: var(--accent-bar-width) solid var(--primary-color);
    border-radius: var(--radius-card);
    padding: 1.25rem 1.35rem;
    background: var(--gray-100);
    box-sizing: border-box;
    overflow: hidden;
}

.zaf84dnote-title {
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary-dark);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.zaf84dnote-text {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
    overflow-wrap: anywhere;
    word-break: break-word;
}

/* —— 统计数据：横向条带 —— */
.zaf84dstats-section {
    background: linear-gradient(180deg, #f0ebe4 0%, var(--surface) 100%);
    color: var(--text-color);
    padding: var(--section-pad-y) 0;
    border-top: var(--border-card);
    border-bottom: var(--border-card);
}

.zaf84dstat-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    padding: 0;
    border: var(--border-card);
    background: var(--border-inner);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-sizing: border-box;
}

@media (min-width: 992px) {
    .zaf84dstat-strip {
        grid-template-columns: repeat(4, 1fr);
    }
}

.zaf84dstat-cell {
    min-width: 0;
    padding: 1.15rem 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.35rem;
    background: var(--surface-elevated);
    border: none;
    box-sizing: border-box;
}

.zaf84dstat-number {
    font-size: clamp(1.65rem, 3.5vw, 2.35rem);
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1.1;
}

.zaf84dstat-label {
    font-size: clamp(0.75rem, 1.8vw, 0.88rem);
    color: var(--text-muted);
    line-height: 1.35;
    max-width: 11rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

/* —— 下载区：板状 —— */
.zaf84ddownload-section {
    padding: var(--section-pad-y) 0;
    background: var(--surface-elevated);
}

.zaf84ddl-slab {
    height: 100%;
    border: var(--border-card);
    border-left: var(--accent-bar-width) solid var(--primary-color);
    border-radius: var(--radius-card);
    padding: 1.35rem 1.4rem 1.4rem;
    background: var(--surface);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.zaf84ddl-slab--accent {
    border-left-color: var(--accent-color);
}

.zaf84ddl-tag {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary-dark);
    margin-bottom: 0.35rem;
}

.zaf84ddl-list {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.55;
    flex: 1;
}

.zaf84ddl-list li {
    margin-bottom: 0.35rem;
}

.zaf84ddl-slab-head .small {
    word-break: break-word;
}

.zaf84ddl-footnote {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 1.5rem 0 0;
    max-width: 40rem;
    margin-left: auto;
    margin-right: auto;
    word-break: break-word;
}
.zaf84dguide-section {
    padding: var(--section-pad-y) 0;
    background: var(--gray-100);
    border-top: var(--border-card);
}

.zaf84dtimeline {
    position: relative;
    padding-left: 0.5rem;
}

.zaf84dtimeline::before {
    content: "";
    position: absolute;
    left: 11px;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 2px;
    background: var(--border-subtle);
}

.zaf84dtimeline-item {
    position: relative;
    padding-left: 2.25rem;
    margin-bottom: 1.5rem;
}

.zaf84dtimeline-item:last-child {
    margin-bottom: 0;
}

.zaf84dtimeline-marker {
    position: absolute;
    left: 0;
    top: 0.35rem;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--surface-elevated);
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 0 2px var(--gray-100);
    z-index: 1;
    box-sizing: border-box;
}

.zaf84dtimeline-card {
    background: var(--surface-elevated);
    border: var(--border-card);
    border-radius: var(--radius-card);
    padding: 1.25rem 1.35rem;
    box-sizing: border-box;
    overflow: hidden;
}

.zaf84dtimeline-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.65rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dtimeline-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--primary-dark);
    margin-right: 0.35rem;
}

.zaf84dtimeline-card ol,
.zaf84dtimeline-card ul {
    padding-left: 1.1rem;
    margin: 0;
    color: var(--text-muted);
    font-size: 0.93rem;
}

.zaf84dtimeline-card li {
    margin-bottom: 0.4rem;
}

/* —— 安全区：文本柱 —— */
.zaf84dsecurity-section {
    padding: var(--section-pad-y) 0;
    background: var(--surface);
}

.zaf84dsec-pillar {
    height: 100%;
    background: var(--surface-elevated);
    border: var(--border-card);
    border-top: var(--accent-bar-width) solid var(--primary-color);
    border-radius: var(--radius-card);
    padding: 1.25rem 1.2rem;
    box-sizing: border-box;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.zaf84dsec-pillar h3 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dsec-pillar ul {
    margin: 0;
    padding-left: 1rem;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.55;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dsec-pillar li {
    margin-bottom: 0.35rem;
}

.zaf84dcred-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    padding: 0;
    border: var(--border-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    background: var(--border-inner);
}

@media (min-width: 768px) {
    .zaf84dcred-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.zaf84dcred-cell {
    padding: 1.15rem 1.2rem;
    box-sizing: border-box;
    background: var(--surface-elevated);
    border: none;
}

.zaf84dcred-cell strong {
    display: block;
    font-size: 0.9rem;
    color: var(--primary-dark);
    margin-bottom: 0.35rem;
}

.zaf84dcred-cell p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* —— FAQ：行间 —— */
.zaf84dfaq-stack {
    border: var(--border-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    background: var(--surface-elevated);
}

.zaf84dfaq-row {
    padding: 1.15rem 1.35rem;
    border-bottom: 1px solid var(--border-inner);
    box-sizing: border-box;
}

.zaf84dfaq-row:last-child {
    border-bottom: none;
}

.zaf84dfaq-row h3 {
    font-size: 0.98rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 0.45rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.zaf84dfaq-row p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
    overflow-wrap: anywhere;
    word-break: break-word;
}

/* —— 文章区 —— */
.zaf84darticle-band {
    background: var(--gray-100);
    border-top: var(--border-card);
}

.zaf84darticle-band-title {
    letter-spacing: -0.02em;
    font-weight: 800;
}

.zaf84darticle-card {
    border-radius: var(--radius-card) !important;
    border: var(--border-card) !important;
    transition: box-shadow var(--transition-speed);
}

.zaf84darticle-card:hover {
    box-shadow: var(--shadow-hover) !important;
}

#article .card {
    border: var(--border-card);
    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,
.zaf84dfaq-band {
    border-top: var(--border-card);
    background: var(--surface-elevated) !important;
}

/* —— 页脚 —— */
.zaf84dfooter {
    background: var(--secondary-color);
    padding: 2.75rem 0 1.35rem;
    color: #a1a1aa;
}

.zaf84dfooter .zaf84dfooter-title {
    color: #f4f4f5;
}

.zaf84dfooter-link {
    color: #a1a1aa;
}

.zaf84dfooter-link:hover {
    color: var(--accent-color);
}

.zaf84dfooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.35rem;
}

.zaf84dfooter-bottom a {
    color: #d4d4d8;
}

.zaf84dfooter-bottom a:hover {
    color: var(--accent-color);
}

/* —— 子页内容区 —— */
.zaf84dpage-shell {
    padding: clamp(2rem, 4vw, 3rem) 0;
    background: var(--surface);
    min-height: 50vh;
}

.zaf84dpage-shell .card {
    border: var(--border-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-sizing: border-box;
}

.zaf84dpage-shell .card.shadow-sm {
    box-shadow: var(--shadow-soft) !important;
}

.zaf84dpage-shell aside a {
    color: var(--primary-dark);
    text-decoration: none;
}

.zaf84dpage-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(--primary-rgb), 0.22);
}

.zaf84dsidebar-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);
}

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

.zaf84dhero-copy,
.zaf84dfeat-band,
.zaf84ddl-slab,
.zaf84dfaq-stack {
    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(255, 255, 255, 0.98);
    padding: 0.65rem;
    border-radius: var(--radius-card);
    margin-top: 0.5rem;
    border: var(--border-card);
    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;
}

.zaf84dthumb-home {
    border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.zaf84dfriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
}

.zaf84dfriend-links li {
    display: inline;
}

.zaf84dfriend-links a {
    color: #a1a1aa;
    text-decoration: none;
}

.zaf84dfriend-links a:hover {
    color: var(--accent-color);
}

.zaf84darticle-content {
    line-height: 1.75;
    word-break: break-word;
}

.zaf84darticle-content img {
    max-width: 100%;
    height: auto;
}

.zaf84ddiyfield {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.zaf84dmeta-tags {
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.zaf84dmeta-tags .list-inline-item {
    margin-right: 0 !important;
    display: inline-block;
}

.zaf84dtagitem 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;
}

.zaf84dtagitem a:hover {
    background: rgba(var(--primary-rgb), 0.22);
}

.zaf84dpages .pagelist a {
    color: var(--primary-dark);
}

@media (max-width: 991px) {
    .zaf84dhero-buttons .btn {
        flex: 1 1 auto;
        min-width: 0;
    }
}

@media (max-width: 767px) {
    .zaf84dnavbar {
        padding: 0.45rem 0;
    }

    .zaf84dnavbar .navbar-collapse {
        max-height: min(72vh, 520px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .zaf84dprose-section .lead:first-child {
        margin-bottom: 1rem;
    }

    .zaf84dprose-columns {
        column-count: 1;
    }

    .zaf84dnavbar .navbar-nav .nav-link {
        padding: 0.55rem 0.65rem !important;
        font-size: 0.9375rem;
        min-height: 2.75rem;
        display: flex;
        align-items: center;
    }

    .zaf84dprose-section .lead {
        text-align: left;
        font-size: 0.9375rem;
        line-height: 1.7;
        max-width: none;
    }

    .zaf84dsection-head {
        text-align: left;
        margin-bottom: 1.65rem;
    }

    .zaf84dstats-section .zaf84dsection-head {
        text-align: center;
    }

    .zaf84dsection-head p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .zaf84dsection-head--rail {
        flex-direction: column;
        gap: 0.65rem;
    }

    .zaf84dsection-rail {
        width: 100%;
        height: var(--accent-bar-width);
        flex: 0 0 auto;
        margin-top: 0;
        align-self: stretch;
    }

    .zaf84dfeat-band {
        grid-template-columns: 1fr;
        gap: 0.35rem 0;
        padding: 1.1rem 0;
    }

    .zaf84dhero-copy {
        padding-left: calc(env(safe-area-inset-left, 0px) + var(--accent-bar-width) + 0.65rem);
    }

    .zaf84dhero-title {
        font-size: clamp(1.55rem, 6.5vw, 2.35rem);
        line-height: 1.12;
    }

    .zaf84dsection-head h2 {
        font-size: clamp(1.2rem, 5vw, 1.55rem);
    }

    .zaf84dfeat-num {
        font-size: 1.45rem;
        line-height: 1.1;
    }

    .zaf84dnote-rail {
        padding: 1.05rem 1rem;
    }

    .zaf84dtimeline-item {
        padding-left: 1.85rem;
    }

    .zaf84dtimeline-marker {
        top: 0.4rem;
    }

    .zaf84dhero-section {
        padding-top: clamp(2.25rem, 7vw, 3.5rem);
        padding-bottom: clamp(2.5rem, 8vw, 3.75rem);
    }

    .zaf84dhero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    .zaf84dhero-abstract {
        font-size: 0.88rem;
    }

    .zaf84dhero-frame-inner {
        transform: none;
    }

    .zaf84dhero-buttons {
        flex-direction: column;
    }

    .zaf84dhero-buttons .btn {
        width: 100%;
    }

    .zaf84dhero-buttons .btn-lg {
        --bs-btn-padding-y: 0.5rem;
        --bs-btn-padding-x: 1rem;
        font-size: 0.9375rem;
        min-height: 2.75rem;
    }

    .zaf84dhero-buttons .btn {
        min-height: 2.75rem;
    }

    .zaf84dhero-meta {
        grid-template-columns: 1fr;
    }

    .zaf84dstat-cell {
        padding: 0.85rem 0.5rem;
    }

    .zaf84dstat-label {
        max-width: none;
        font-size: 0.72rem;
    }

    .zaf84dstat-number {
        font-size: clamp(1.35rem, 5.5vw, 1.8rem);
    }

    .zaf84dtimeline-card {
        padding: 1rem 1.05rem;
    }

    .zaf84dfaq-row {
        padding: 1rem 1.05rem;
    }

    .zaf84ddl-slab {
        padding: 1.1rem 1.15rem 1.15rem;
    }

    .zaf84ddl-slab .btn {
        width: 100%;
    }

    .zaf84dfooter {
        padding: 2rem 0 1.15rem;
    }

    .zaf84dfooter-bottom p.small.mb-2 {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        column-gap: 0.35rem;
        row-gap: 0.4rem;
    }

    .zaf84dfooter-bottom p.small.mb-2 > span {
        opacity: 0.45;
        flex: 0 0 auto;
    }

    .zaf84dpage-shell {
        padding-top: 1.5rem !important;
        padding-bottom: 2rem !important;
    }

    .zaf84dpage-shell h1.h3 {
        font-size: clamp(1.05rem, 4.5vw, 1.35rem);
        line-height: 1.35;
        word-break: break-word;
    }

    .zaf84dpage-shell header .small {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem 0.75rem;
        row-gap: 0.25rem;
    }

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

    #article .zaf84dthumb-home {
        height: 100px !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;
    }

    .zaf84dthumb-list,
    .zaf84dthumb-related {
        height: 72px !important;
    }

    .zaf84dthumb-side {
        height: 50px !important;
    }

    .zaf84dthumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: 170px !important;
        margin: 0 auto;
    }
}

@media (max-width: 575px) {
    .zaf84dhome-band,
    .zaf84dprose-section,
    .zaf84dstats-section,
    .zaf84ddownload-section,
    .zaf84dguide-section,
    .zaf84dsecurity-section {
        --section-pad-y: clamp(2rem, 5vw, 3.25rem);
    }

    #article .zaf84dthumb-home {
        height: 92px !important;
    }

    .zaf84dthumb-list,
    .zaf84dthumb-related {
        height: 64px !important;
    }

    .zaf84dthumb-side {
        height: 46px !important;
    }

    .zaf84dthumb-cover {
        height: 150px !important;
    }

    .pagebar .pagelist {
        gap: 0.35rem;
    }

    .zaf84dhero-eyebrow {
        font-size: 0.68rem;
        letter-spacing: 0.1em;
        line-height: 1.35;
    }

    .zaf84dfooter-bottom {
        font-size: 0.8125rem;
    }

    .zaf84dhero-meta dd {
        font-size: 0.78rem;
    }
}