:root {
    --primary-color: #d97706;
    --primary-dark: #b45309;
    --primary-soft: rgba(217, 119, 6, 0.14);
    --secondary-color: #1c1917;
    --accent-color: #059669;
    --surface: #f7f5f2;
    --surface-elevated: #fffcf7;
    --surface-muted: #ebe6df;
    --surface-wash: #f0ebe3;
    --text-color: #292524;
    --text-muted: #57534e;
    --border-subtle: rgba(28, 25, 23, 0.12);
    --border-strong: rgba(28, 25, 23, 0.22);
    /* 全站统一：卡片描边 1px、左侧强调条同宽，避免板块「有的粗有的细」 */
    --border-card: 1px solid var(--border-subtle);
    --border-accent-bar: 3px solid var(--primary-color);
    --gray-100: #f5f0e8;
    --gray-200: #e7e0d5;
    --transition-speed: 0.28s;
    --transition-easing: cubic-bezier(0.25, 0.1, 0.25, 1);
    --radius-tight: 2px;
    --radius-soft: 6px;
    --shadow-paper: 0 1px 0 rgba(255, 255, 255, 0.75) inset, 0 2px 8px rgba(28, 25, 23, 0.06);
    --shadow-lift: 0 12px 32px rgba(28, 25, 23, 0.1);
    --section-pad-y: clamp(2.5rem, 5.5vw, 4.25rem);
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Iowan Old Style", "Palatino Linotype", "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);
    padding-bottom: env(safe-area-inset-bottom, 0);
}

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

/* —— 导航：底线强调，非胶囊 —— */
.z28a3fnavbar {
    background: rgba(247, 245, 242, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.55rem 0;
}

.z28a3fnavbar-brand img {
    height: 44px;
    width: auto;
    max-height: 44px;
}

.z28a3fnav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.5rem 0.65rem !important;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    transition: color var(--transition-speed), border-color var(--transition-speed), background var(--transition-speed);
    white-space: normal;
    word-break: break-word;
}

.z28a3fnav-link:hover,
.z28a3fnav-link:focus {
    color: var(--primary-dark) !important;
    border-bottom-color: var(--primary-color);
    background: transparent;
}

/* —— 首页 Binance 风（body.z28a3fhome；金 #f0b90b + 青 #2bb8b8） —— */
body.z28a3fhome {
    --ix-bg: #0b0e11;
    --ix-surface: #161a1e;
    --ix-surface2: #1e2329;
    --ix-gold: #f0b90b;
    --ix-gold-hover: #fcd535;
    --ix-gold-dim: #c99400;
    --ix-cyan: #2bb8b8;
    --ix-text: #eaecef;
    --ix-muted: #848e9c;
    /* 板块描边统一：1px 同级线宽，避免有的粗有的细 */
    --ix-line: rgba(255, 255, 255, 0.08);
    --ix-line-faint: rgba(255, 255, 255, 0.06);
    --ix-line-strong: rgba(255, 255, 255, 0.1);
    --ix-edge-gold: rgba(240, 185, 11, 0.14);
    background: var(--ix-bg);
    color: var(--ix-text);
}

/* 与首页一致的深色顶栏：首页与子页共用 .z28a3fnavbar--ix */
.z28a3fnavbar.z28a3fnavbar--ix {
    --ix-line: rgba(255, 255, 255, 0.08);
    --ix-line-faint: rgba(255, 255, 255, 0.06);
    --ix-nav-text: #eaecef;
    --ix-nav-gold: #f0b90b;
    background: rgba(11, 14, 17, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--ix-line-faint);
    padding: 0.5rem 0;
}

.z28a3fnavbar.z28a3fnavbar--ix .navbar-collapse {
    background: rgba(22, 26, 30, 0.98);
    border: 1px solid var(--ix-line);
}

@media (min-width: 992px) {
    .z28a3fnavbar.z28a3fnavbar--ix .navbar-collapse {
        background: transparent;
        border: none;
    }
}

.z28a3fnavbar.z28a3fnavbar--ix .z28a3fnav-link {
    color: var(--ix-nav-text) !important;
}

.z28a3fnavbar.z28a3fnavbar--ix .z28a3fnav-link:hover,
.z28a3fnavbar.z28a3fnavbar--ix .z28a3fnav-link:focus {
    color: var(--ix-nav-gold) !important;
    border-bottom-color: var(--ix-nav-gold);
}

.z28a3fix-hero {
    position: relative;
    padding: clamp(2.75rem, 6vw, 4.5rem) 0 clamp(2.25rem, 4vw, 3.5rem);
    overflow: hidden;
}

.z28a3fix-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 85% 55% at 85% 15%, rgba(240, 185, 11, 0.11) 0%, transparent 52%),
        radial-gradient(ellipse 55% 45% at 8% 85%, rgba(43, 184, 184, 0.09) 0%, transparent 48%),
        linear-gradient(180deg, #12161c 0%, var(--ix-bg) 100%);
    pointer-events: none;
}

.z28a3fix-hero > .container {
    position: relative;
    z-index: 1;
}

.z28a3fix-desc {
    font-size: clamp(0.95rem, 1.6vw, 1.05rem);
    color: var(--ix-muted);
    margin-bottom: 0.65rem;
    max-width: min(36rem, 100%);
    overflow-wrap: anywhere;
}

.z28a3fix-note {
    font-size: 0.85rem;
    color: var(--ix-muted);
    max-width: min(38rem, 100%);
    line-height: 1.65;
    margin-bottom: 0;
    overflow-wrap: anywhere;
}

.z28a3fix-eyebrow {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ix-gold);
    margin-bottom: 0.5rem;
    overflow-wrap: anywhere;
}

.z28a3fix-title {
    font-size: clamp(1.75rem, 4vw, 2.65rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.75rem;
    color: #fff;
    overflow-wrap: anywhere;
}

.z28a3fix-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.25rem;
}

.z28a3fix-btn {
    border-radius: 6px;
    font-weight: 600;
    padding: 0.55rem 1.15rem;
    border: 1px solid var(--ix-line);
    background: transparent;
    color: var(--ix-text) !important;
    box-sizing: border-box;
}

.z28a3fix-btn:hover {
    border-color: var(--ix-gold);
    color: var(--ix-gold) !important;
}

.z28a3fix-btn--primary {
    background: var(--ix-gold);
    border-color: var(--ix-gold-dim);
    color: #0b0e11 !important;
}

.z28a3fix-btn--primary:hover {
    background: var(--ix-gold-hover);
    border-color: var(--ix-gold);
    color: #0b0e11 !important;
}

.z28a3fix-visual-inner {
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    padding: 0.35rem;
    background: linear-gradient(145deg, var(--ix-surface2) 0%, var(--ix-surface) 100%);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    box-sizing: border-box;
    max-width: 100%;
    overflow: clip;
}

.z28a3fix-shot {
    display: block;
    width: 100%;
    max-width: 380px;
    height: auto;
    margin: 0 auto;
    border-radius: 4px;
    background: #0b0e11;
}

.z28a3fix-cap {
    font-size: 0.72rem;
    color: var(--ix-muted);
    margin: 0.75rem auto 0;
    text-align: center;
    max-width: 22rem;
    line-height: 1.45;
}

@media (max-width: 768px) {
    .z28a3fix-actions .btn-lg {
        width: 100%;
        min-height: 48px;
    }
}

.z28a3fix-strip {
    padding: var(--section-pad-y) 0;
    border-top: 1px solid var(--ix-line-faint);
    border-bottom: 1px solid var(--ix-line-faint);
    background: var(--ix-surface);
}

.z28a3fix-strip-card {
    height: 100%;
    padding: 1.25rem;
    background: var(--ix-surface2);
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    box-sizing: border-box;
    min-width: 0;
    overflow: clip;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.z28a3fix-strip-card:hover {
    border-color: rgba(240, 185, 11, 0.35);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.z28a3fix-strip-ico {
    display: inline-flex;
    width: 2.25rem;
    height: 2.25rem;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    background: rgba(240, 185, 11, 0.12);
    color: var(--ix-gold);
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.z28a3fix-strip-h {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: #fff;
}

.z28a3fix-strip-p {
    font-size: 0.875rem;
    color: var(--ix-muted);
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.z28a3fix-section {
    padding: var(--section-pad-y) 0;
    background: var(--ix-bg);
    color: var(--ix-text);
}

.z28a3fix-section--alt {
    background: var(--ix-surface);
}

.z28a3fix-head {
    max-width: 40rem;
    margin-bottom: 1.75rem;
}

.z28a3fix-h2 {
    font-size: clamp(1.35rem, 2.5vw, 1.65rem);
    font-weight: 800;
    margin-bottom: 0.4rem;
    color: #fff;
}

.z28a3fix-sub {
    margin: 0;
    font-size: 0.92rem;
    color: var(--ix-muted);
    line-height: 1.65;
}

.z28a3fix-head--light .z28a3fix-h2 {
    color: #fff;
}

.z28a3fix-head--light .z28a3fix-sub {
    color: rgba(234, 236, 239, 0.88);
}

.z28a3fix-card {
    background: var(--ix-surface2);
    border: 1px solid var(--ix-line);
    border-top: 2px solid var(--ix-gold);
    border-radius: 8px;
    padding: 1.2rem 1.15rem;
    box-sizing: border-box;
    min-width: 0;
    overflow: clip;
    overflow-wrap: anywhere;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.z28a3fix-card:hover {
    border: 1px solid rgba(240, 185, 11, 0.38);
    border-top: 2px solid var(--ix-gold-hover);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
}

@media (hover: hover) and (pointer: fine) {
    .z28a3fix-card {
        transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    }

    .z28a3fix-card:hover {
        transform: translateY(-2px);
    }
}

.z28a3fix-card-h {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.45rem;
    color: #fff;
}

.z28a3fix-card-p {
    font-size: 0.85rem;
    color: var(--ix-muted);
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.z28a3fix-step {
    background: var(--ix-surface2);
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    padding: 1.15rem 1.1rem;
    height: 100%;
    box-sizing: border-box;
    min-width: 0;
    overflow: clip;
    overflow-wrap: anywhere;
}

.z28a3fix-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.8rem;
    font-weight: 800;
    background: var(--ix-gold);
    color: #0b0e11;
    border-radius: 4px;
    margin-bottom: 0.6rem;
}

.z28a3fix-step-h {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.35rem;
}

.z28a3fix-step-p {
    font-size: 0.85rem;
    color: var(--ix-muted);
    line-height: 1.55;
    overflow-wrap: anywhere;
}

/* —— 分区外壳（子页可能引用） —— */
.z28a3fsection-shell {
    padding: var(--section-pad-y) 0;
}

.z28a3fsection-shell--wash {
    background: var(--surface-muted);
    border-top: var(--border-card);
    border-bottom: var(--border-card);
}

.z28a3fix-stats {
    position: relative;
    padding: var(--section-pad-y) 0;
    background: linear-gradient(180deg, #1e2026 0%, #0b0e11 100%);
    border-top: 1px solid var(--ix-edge-gold);
    border-bottom: 1px solid var(--ix-line-faint);
    overflow: hidden;
}

.z28a3fix-stats::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        -18deg,
        transparent,
        transparent 14px,
        rgba(255, 255, 255, 0.02) 14px,
        rgba(255, 255, 255, 0.02) 15px
    );
    pointer-events: none;
}

.z28a3fix-metrics {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .z28a3fix-metrics {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.z28a3fix-metric {
    text-align: center;
    padding: 1.1rem 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    box-sizing: border-box;
    min-width: 0;
    overflow: clip;
}

.z28a3fix-metric-v {
    display: block;
    font-size: clamp(1.35rem, 2.8vw, 1.85rem);
    font-weight: 800;
    color: var(--ix-gold);
    line-height: 1.15;
}

.z28a3fix-metric-l {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.72rem;
    color: var(--ix-muted);
    line-height: 1.35;
    overflow-wrap: anywhere;
    word-break: break-word;
    padding: 0 0.15rem;
}

.z28a3fix-dl {
    background: var(--ix-surface2);
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    padding: 1.25rem;
    height: 100%;
    box-sizing: border-box;
    min-width: 0;
    overflow: clip;
}

.z28a3fix-dl-top {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    min-width: 0;
}

.z28a3fix-dl-ico {
    font-size: 2rem;
    color: var(--ix-gold);
    flex-shrink: 0;
}

.z28a3fix-dl-top > div:last-child {
    flex: 1;
    min-width: 0;
}

.z28a3fix-dl-h {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.25rem;
}

.z28a3fix-dl-p {
    font-size: 0.875rem;
    color: var(--ix-muted);
    line-height: 1.55;
    overflow-wrap: anywhere;
    min-width: 0;
}

.z28a3fix-dl-note {
    font-size: 0.8rem;
    color: var(--ix-muted);
    margin: 1.25rem auto 0;
    text-align: center;
    max-width: 42rem;
    line-height: 1.55;
}

.z28a3fix-sec {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.45rem;
    padding: 1rem 0.75rem;
    background: var(--ix-surface2);
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    height: 100%;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ix-text);
    box-sizing: border-box;
    min-width: 0;
    overflow: clip;
    overflow-wrap: anywhere;
}

.z28a3fix-sec-i {
    font-size: 1.35rem;
    color: var(--ix-cyan);
}

.z28a3fix-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.z28a3fix-badges span {
    padding: 0.35rem 0.75rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ix-muted);
    border: 1px solid var(--ix-line-strong);
    border-radius: 4px;
    box-sizing: border-box;
}

.z28a3fix-faq {
    border-top: 1px solid var(--ix-line-faint);
}

.z28a3fix-faqlist {
    max-width: 46rem;
}

.z28a3fix-details {
    border: 1px solid var(--ix-line);
    border-radius: 8px;
    margin-bottom: 0.65rem;
    background: var(--ix-surface2);
    overflow: clip;
    box-sizing: border-box;
    min-width: 0;
}

.z28a3fix-details summary {
    padding: 1rem 1.1rem;
    font-weight: 700;
    font-size: 0.92rem;
    color: #fff;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    box-sizing: border-box;
}

.z28a3fix-details summary .z28a3fix-details-t {
    flex: 1 1 auto;
    min-width: 0;
    overflow-wrap: anywhere;
    text-align: left;
    line-height: 1.45;
}

.z28a3fix-details summary::-webkit-details-marker {
    display: none;
}

.z28a3fix-details summary::after {
    content: "+";
    flex-shrink: 0;
    margin-left: auto;
    padding-top: 0.1rem;
    color: var(--ix-gold);
    font-weight: 800;
}

.z28a3fix-details[open] summary::after {
    content: "\2212";
}

.z28a3fix-details p {
    margin: 0;
    padding: 0.75rem 1.1rem 1rem;
    font-size: 0.875rem;
    color: var(--ix-muted);
    line-height: 1.65;
    border-top: 1px solid var(--ix-line-faint);
    overflow-wrap: anywhere;
}

.z28a3fix-article {
    background: linear-gradient(180deg, var(--ix-surface) 0%, var(--ix-bg) 100%);
    border-top: 1px solid var(--ix-line-faint);
}

.z28a3fix-article-card {
    background: var(--ix-surface2) !important;
    border: 1px solid var(--ix-line) !important;
    border-radius: 8px !important;
    overflow: clip;
    box-sizing: border-box;
    min-width: 0;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.z28a3fix-article-card:hover {
    border-color: rgba(240, 185, 11, 0.38) !important;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.z28a3fix-article-meta {
    color: var(--ix-muted);
}

body.z28a3fhome .z28a3fix-article .z28a3fthumb-home {
    border-radius: 4px;
}

/* —— 页脚 —— */
.z28a3ffooter {
    background: #141211;
    padding: 2.5rem 0 1.25rem;
    color: #a8a29e;
}

.z28a3ffooter .z28a3ffooter-title {
    color: #e7e5e4;
}

.z28a3ffooter-link {
    color: #a8a29e;
}

.z28a3ffooter-link:hover {
    color: var(--accent-color);
}

.z28a3ffooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.25rem;
}

.z28a3ffooter-bottom a {
    color: #d6d3d1;
}

.z28a3ffooter-bottom a:hover {
    color: var(--accent-color);
}

.z28a3ffooter.z28a3ffooter--ix {
    background: #0b0e11;
    border-top: 1px solid var(--ix-edge-gold);
}

.z28a3ffooter.z28a3ffooter--ix .z28a3ffooter-title {
    color: #f0f0f0;
}

.z28a3ffooter.z28a3ffooter--ix .z28a3ffooter-link {
    color: #848e9c;
}

.z28a3ffooter.z28a3ffooter--ix .z28a3ffooter-link:hover {
    color: #2bb8b8;
}

.z28a3ffooter.z28a3ffooter--ix .z28a3ffriend-links a {
    color: #5e6673;
}

.z28a3ffooter.z28a3ffooter--ix .z28a3ffriend-links a:hover {
    color: #2bb8b8;
}

/* —— 子页 —— */
.z28a3fpage-shell {
    padding: clamp(2rem, 4vw, 3rem) 0;
    background: var(--surface);
    min-height: 50vh;
}

.z28a3fpage-shell .card {
    border: var(--border-card);
    border-radius: var(--radius-soft);
    overflow: clip;
    box-sizing: border-box;
}

.z28a3fpage-shell .card.shadow-sm {
    box-shadow: var(--shadow-paper) !important;
}

.z28a3fpage-shell aside a {
    color: var(--primary-dark);
    text-decoration: none;
}

.z28a3fpage-shell aside a:hover {
    text-decoration: underline;
}

.btn-primary {
    background: linear-gradient(180deg, 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 var(--primary-soft);
}

.z28a3fsidebar-title {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: var(--border-card);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body.z28a3fhome .z28a3fix-section,
body.z28a3fhome .z28a3fix-hero > .container {
    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, 252, 247, 0.98);
    padding: 0.6rem;
    border-radius: var(--radius-soft);
    margin-top: 0.45rem;
    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;
}

.z28a3fthumb-home {
    border-radius: 0;
}

.z28a3ffriend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
}

.z28a3ffriend-links li {
    display: inline;
}

.z28a3ffriend-links a {
    color: #a8a29e;
    text-decoration: none;
}

.z28a3ffriend-links a:hover {
    color: var(--accent-color);
}

.z28a3farticle-content {
    line-height: 1.75;
    word-break: break-word;
}

.z28a3farticle-content img {
    max-width: 100%;
    height: auto;
}

.z28a3fdiyfield {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.z28a3fmeta-tags {
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.z28a3fmeta-tags .list-inline-item {
    margin-right: 0 !important;
    display: inline-block;
}

.z28a3ftagitem a {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-soft);
    background: var(--primary-soft);
    color: var(--primary-dark);
    text-decoration: none;
    font-size: 0.85rem;
}

.z28a3ftagitem a:hover {
    background: rgba(217, 119, 6, 0.22);
}

.z28a3fpages .pagelist a {
    color: var(--primary-dark);
}

/* —— 兼容旧类名（子页/内联） —— */
.z28a3finfo-item {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    margin-bottom: 0.5rem;
}

.z28a3finfo-item:last-child {
    margin-bottom: 0;
}

@media (max-width: 767px) {
    :root {
        --section-pad-y: clamp(2rem, 5vw, 3.25rem);
    }

    .z28a3fnavbar {
        padding: 0.45rem 0;
    }

    .z28a3fnavbar .navbar-collapse {
        max-height: min(72vh, 28rem);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .z28a3fnavbar .navbar-nav .nav-link {
        display: flex;
        padding: 0.62rem 0.65rem !important;
        font-size: 0.95rem;
        min-height: 44px;
        box-sizing: border-box;
        align-items: center;
    }

    body.z28a3fhome .z28a3fix-hero {
        padding-top: clamp(1.65rem, 5vw, 2.75rem);
        padding-bottom: clamp(1.35rem, 4vw, 2.25rem);
    }

    body.z28a3fhome .z28a3fix-title {
        font-size: clamp(1.42rem, 5.2vw, 2rem);
        line-height: 1.14;
    }

    body.z28a3fhome .z28a3fix-desc {
        max-width: 100%;
        font-size: 0.95rem;
    }

    body.z28a3fhome .z28a3fix-h2 {
        font-size: clamp(1.12rem, 4.5vw, 1.45rem);
    }

    body.z28a3fhome .z28a3fix-sub {
        font-size: 0.88rem;
    }

    body.z28a3fhome .z28a3fix-metric-v {
        font-size: clamp(1.2rem, 4.8vw, 1.55rem);
    }

    body.z28a3fhome .z28a3fix-metric-l {
        font-size: 0.68rem;
    }

    body.z28a3fhome .z28a3fix-strip-card {
        padding: 1.05rem 0.95rem;
    }

    body.z28a3fhome .z28a3fix-card,
    body.z28a3fhome .z28a3fix-step {
        padding: 1rem 0.9rem;
    }

    body.z28a3fhome .z28a3fix-details summary {
        font-size: 0.88rem;
        padding: 0.85rem 0.95rem;
    }

    body.z28a3fhome .z28a3fix-details p {
        font-size: 0.82rem;
        padding-left: 0.95rem;
        padding-right: 0.95rem;
    }

    body.z28a3fhome .z28a3fix-hero .row {
        --bs-gutter-x: 1rem;
        --bs-gutter-y: 1.25rem;
    }

    body.z28a3fhome .z28a3fix-shot {
        max-width: 100%;
    }

    body.z28a3fhome .z28a3fix-visual {
        max-width: 100%;
        margin-inline: auto;
    }

    body.z28a3fhome .z28a3fix-head {
        margin-bottom: 1.35rem;
    }

    body.z28a3fhome .z28a3fix-dl-note {
        padding-inline: 0.25rem;
    }

    .z28a3fpage-shell .listbox .col-8 {
        min-width: 0;
    }

    .z28a3fpage-shell aside .list-unstyled li.d-flex > a:last-child {
        flex: 1 1 auto;
        min-width: 0;
        overflow-wrap: anywhere;
    }

    .z28a3ffooter {
        padding: 2rem 0 1.1rem;
    }

    .z28a3ffooter-bottom p.small.mb-2 {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        column-gap: 0.35rem;
        row-gap: 0.4rem;
    }

    .z28a3ffooter-bottom p.small.mb-2 > span {
        opacity: 0.45;
        flex: 0 0 auto;
    }

    .z28a3fpage-shell {
        padding-top: 1.5rem !important;
        padding-bottom: 2rem !important;
    }

    .z28a3fpage-shell h1.h3 {
        font-size: clamp(1.05rem, 4.5vw, 1.35rem);
        line-height: 1.35;
        word-break: break-word;
    }

    .z28a3fpage-shell header .small {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem 0.75rem;
        row-gap: 0.25rem;
    }

    body.z28a3fhome #article .card-body {
        padding: 0.75rem;
    }

    body.z28a3fhome #article .z28a3fthumb-home {
        height: 96px !important;
    }

    body.z28a3fhome #article h3.h5,
    body.z28a3fhome #article .card-body h3.h6,
    body.z28a3fhome #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;
    }

    .z28a3fthumb-list,
    .z28a3fthumb-related {
        height: 72px !important;
    }

    .z28a3fthumb-side {
        height: 50px !important;
    }

    .z28a3fthumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: 170px !important;
        margin: 0 auto;
    }
}

@media (max-width: 575px) {
    body.z28a3fhome .z28a3fix-metrics {
        gap: 0.5rem;
    }

    body.z28a3fhome .z28a3fix-metric {
        padding: 0.85rem 0.45rem;
    }

    body.z28a3fhome .z28a3fix-metric-v {
        font-size: clamp(1.05rem, 5.2vw, 1.4rem);
    }

    body.z28a3fhome .z28a3fix-dl {
        padding: 1rem 0.85rem;
    }

    body.z28a3fhome .z28a3fix-sec {
        font-size: 0.74rem;
        padding: 0.85rem 0.4rem;
    }

    body.z28a3fhome .z28a3ffooter--ix .z28a3ffooter-bottom p.small.mb-2 {
        flex-direction: column;
        row-gap: 0.35rem;
    }

    body.z28a3fhome .z28a3ffooter--ix .z28a3ffooter-bottom p.small.mb-2 > span {
        display: none;
    }

    body.z28a3fhome #article .z28a3fthumb-home {
        height: 88px !important;
    }

    .z28a3fthumb-list,
    .z28a3fthumb-related {
        height: 64px !important;
    }

    .z28a3fthumb-side {
        height: 46px !important;
    }

    .z28a3fthumb-cover {
        height: 150px !important;
    }

    .pagebar .pagelist {
        gap: 0.35rem;
    }

    .z28a3ffooter-bottom {
        font-size: 0.8125rem;
    }
}