/* ========================================
   Theme: Indigo + Coral Corporate
   ======================================== */
:root {
    --color-primary: #1e1b4b;
    --color-primary-light: #312e81;
    --color-accent: #f97316;
    --color-accent-hover: #ea580c;
    --color-secondary: #14b8a6;
    --color-bg: #f1f5f9;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-dark-bg: #0f172a;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.1);
    --header-h: 64px;
    --container-max: 1140px;
    --section-py: 4rem;
    --gap: 1.25rem;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

body.nav-open {
    overflow: hidden;
}

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

a {
    color: var(--color-primary-light);
    transition: color 0.2s;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.25rem;
    width: 100%;
}

/* ========== Header ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
    gap: 1rem;
}

.site-logo {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    flex-shrink: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.site-logo a {
    color: var(--color-primary);
    text-decoration: none;
}

.site-logo a:hover {
    color: var(--color-accent);
}

.site-nav ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
    justify-content: flex-end;
}

.site-nav a {
    display: block;
    padding: 0.4rem 0.65rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    transition: background 0.2s, color 0.2s;
}

.site-nav a:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}

.site-nav li.z92425this a,
.site-nav .z92425this > a {
    background: var(--color-primary);
    color: #fff;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    margin: 5px 0;
    transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== Sections Common ========== */
.section {
    padding: var(--section-py) 0;
}

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

.section-dark {
    background: var(--color-dark-bg);
    color: #cbd5e1;
}

.section-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #e2e8f0;
}

.section-links {
    background: var(--color-surface);
    padding: 2.5rem 0;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(249, 115, 22, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 0.75rem;
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 2.5rem;
}

.section-head h2 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    line-height: 1.35;
    word-break: break-word;
}

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

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

.section-head-light p {
    color: #94a3b8;
}

.section-head-light .section-tag {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-accent);
}

/* ========== Banner ========== */
.banner {
    margin-top: var(--header-h);
    padding: 3.5rem 0;
    background: linear-gradient(160deg, #eef2ff 0%, #fff7ed 50%, #f0fdfa 100%);
    border-bottom: 1px solid var(--color-border);
}

.banner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.banner-text h2 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
    word-break: break-word;
}

.banner-lead {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.banner-lead strong {
    color: var(--color-text);
    font-weight: 600;
}

.banner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.btn {
    display: inline-block;
    padding: 0.65rem 1.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

.banner-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
}

.metric-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.metric-card strong {
    display: block;
    font-size: 1.75rem;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.metric-card span {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ========== Feature Row ========== */
.feature-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.feature-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: box-shadow 0.2s;
}

.section-alt .feature-card {
    background: var(--color-bg);
}

.section:not(.section-alt) .feature-card {
    background: var(--color-surface);
}

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

.feature-icon {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-bottom: 0.6rem;
}

.feature-card p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* ========== Bento Grid ========== */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: var(--gap);
}

.bento-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: box-shadow 0.2s;
}

.section-alt .bento-item {
    background: var(--color-bg);
}

.bento-item:hover {
    box-shadow: var(--shadow-md);
}

.bento-large {
    grid-column: 1 / 3;
    grid-row: 1 / 2;
}

.bento-item h3 {
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-bottom: 0.6rem;
}

.bento-item p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.check-list {
    list-style: none;
    margin-top: 1rem;
}

.check-list li {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: 0.3rem 0 0.3rem 1.4rem;
    position: relative;
}

.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.65rem;
    width: 8px;
    height: 8px;
    background: var(--color-secondary);
    border-radius: 50%;
}

/* ========== Split Layout ========== */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.split-content h2 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.split-content p {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.info-strip {
    display: flex;
    gap: var(--gap);
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.info-strip-item {
    flex: 1;
    min-width: 100px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
}

.info-strip-item strong {
    display: block;
    font-size: 1.1rem;
    color: var(--color-accent);
    margin-bottom: 0.2rem;
}

.info-strip-item span {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.split-panel {
    background: var(--color-primary);
    color: #e2e8f0;
    border-radius: var(--radius-lg);
    padding: 1.75rem;
}

.split-panel h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #fff;
}

.panel-list {
    list-style: none;
}

.panel-list li {
    font-size: 0.88rem;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    line-height: 1.6;
}

.panel-list li:last-child {
    border-bottom: none;
}

.panel-list strong {
    color: var(--color-accent);
}

/* ========== Steps ========== */
.steps-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
}

.step-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem 1.25rem;
    position: relative;
    border-top: 3px solid var(--color-accent);
}

.step-num {
    display: inline-flex;
    width: 28px;
    height: 28px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.step-card h3 {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ========== Knowledge Grid ========== */
.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.knowledge-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: background 0.2s;
}

.knowledge-card:hover {
    background: rgba(255, 255, 255, 0.1);
}

.knowledge-card h3 {
    font-size: 0.95rem;
    color: #fff;
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.knowledge-card p {
    font-size: 0.85rem;
    color: #94a3b8;
    line-height: 1.65;
}

.knowledge-card strong {
    color: #e2e8f0;
}

/* ========== FAQ ========== */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap);
}

.faq-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-secondary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.faq-card h3 {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.faq-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* ========== Contact CTA ========== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.contact-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
}

.contact-card h3 {
    font-size: 1rem;
    color: #fff;
    margin-bottom: 0.6rem;
}

.contact-card p {
    font-size: 0.85rem;
    color: #94a3b8;
    line-height: 1.6;
}

.contact-card strong {
    color: #e2e8f0;
}

/* ========== Links ========== */
.links-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1rem;
    list-style: none;
}

.links-list a {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-decoration: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    word-break: break-all;
}

.links-list a:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: rgba(249, 115, 22, 0.05);
}

/* ========== Advertisement ========== */
.advertisement {
    padding: 1.5rem 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.advertisement .container {
    text-align: center;
    overflow: hidden;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--color-dark-bg);
    color: #94a3b8;
    padding: 2rem 0;
    text-align: center;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.site-footer a {
    color: var(--color-accent);
    text-decoration: none;
}

.site-footer a:hover {
    color: #fff;
}

/* ========== Homepage Articles ========== */
.home-article-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--gap);
}

.home-article-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
}

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

.home-article-thumb {
    display: block;
    width: 100%;
    height: 120px;
    overflow: hidden;
    background: var(--color-bg);
}

.home-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.home-article-info {
    padding: 0.85rem;
    flex: 1;
}

.home-article-info h3 {
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 0.4rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.home-article-info h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.home-article-info h3 a:hover {
    color: var(--color-accent);
}

.home-article-date {
    font-size: 0.72rem;
    color: var(--color-text-muted);
}

/* ========== Inner Pages ========== */
.page-main {
    margin-top: var(--header-h);
    padding: 1.5rem 0 3rem;
    min-height: calc(100vh - 160px);
}

.page-breadcrumb {
    padding: 0.75rem 0;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.page-breadcrumb a {
    color: var(--color-text);
    text-decoration: none;
}

.page-breadcrumb a:hover {
    color: var(--color-accent);
}

.page-layout {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.page-content {
    flex: 1;
    min-width: 0;
}

/* ========== Sidebar ========== */
.sidebar {
    width: 280px;
    flex-shrink: 0;
}

.sidebar-block {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.sidebar-title {
    background: var(--color-primary);
    color: #fff;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    margin: 0;
    font-weight: 600;
}

.sidebar-list {
    list-style: none;
}

.sidebar-list li {
    border-bottom: 1px solid var(--color-border);
}

.sidebar-list li:last-child {
    border-bottom: none;
}

.sidebar-list a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    text-decoration: none;
    color: var(--color-text);
    transition: background 0.2s;
}

.sidebar-list a:hover {
    background: var(--color-bg);
}

.sidebar-item-thumb {
    flex-shrink: 0;
    width: 56px;
    height: 42px;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: var(--color-bg);
}

.sidebar-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebar-item-title {
    flex: 1;
    font-size: 0.82rem;
    line-height: 1.4;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ========== List Page ========== */
.list-header {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.list-title {
    font-size: 1.35rem;
    color: var(--color-primary);
    margin: 0;
}

.listbox {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.article-list {
    list-style: none;
}

.list-item {
    display: flex;
    gap: 1.25rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.2s;
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: var(--color-bg);
}

.list-thumb {
    flex-shrink: 0;
    width: 180px;
    height: 130px;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: var(--color-bg);
}

.list-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.list-info {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
    line-height: 1.4;
}

.list-item-title a {
    color: var(--color-text);
    text-decoration: none;
}

.list-item-title a:hover {
    color: var(--color-accent);
}

.list-meta {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
}

.list-meta span {
    margin-right: 0.75rem;
}

.list-meta a {
    color: var(--color-text-muted);
    text-decoration: none;
}

.list-meta a:hover {
    color: var(--color-accent);
}

.list-desc {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* ========== Pagination ========== */
.pagebar {
    margin-top: 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
}

.pagebar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.pagebar-left,
.pagebar-center,
.pagebar-right {
    display: flex;
    align-items: center;
}

.pagebar-left { flex: 1; justify-content: flex-start; }
.pagebar-center { flex: 2; justify-content: center; }
.pagebar-right { flex: 1; justify-content: flex-end; }

.pagebar ul,
.pagebar-left ul,
.pagebar-center ul,
.pagebar-right ul {
    display: flex;
    list-style: none;
    gap: 0.35rem;
    flex-wrap: wrap;
    align-items: center;
    margin: 0;
    padding: 0;
}

.pagebar a,
.pagebar span {
    display: inline-block;
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text);
    font-size: 0.85rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.pagebar a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.pagebar .thisclass,
.pagebar .current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* ========== Article Detail ========== */
.article-detail {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.75rem;
}

.article-header {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.article-title {
    font-size: 1.6rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
    word-break: break-word;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.article-meta a {
    color: var(--color-text-muted);
    text-decoration: none;
}

.article-meta a:hover {
    color: var(--color-accent);
}

.article-thumb-wrap {
    margin-bottom: 1.25rem;
    text-align: center;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.article-thumb-wrap img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.article-body {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 1.25rem;
    word-break: break-word;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.article-body p {
    margin-bottom: 0.85rem;
}

.z92425diyfield {
    margin-bottom: 1.25rem;
    padding: 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.article-images {
    margin-bottom: 1.25rem;
}

.article-figure {
    margin-bottom: 1rem;
    text-align: center;
}

.article-figure img {
    max-width: 100%;
    border-radius: var(--radius-sm);
}

.article-figure figcaption {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-top: 0.4rem;
}

.z92425meta-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.z92425tagitem a {
    display: inline-block;
    padding: 0.25rem 0.7rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: all 0.2s;
}

.z92425tagitem a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.article-prenext {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 1rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.25rem;
}

.prenext-item {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
}

.prenext-item a {
    color: var(--color-text);
    text-decoration: none;
}

.prenext-item a:hover {
    color: var(--color-accent);
}

.related-articles {
    margin-top: 0.5rem;
}

.related-title {
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-bottom: 0.85rem;
    padding-left: 0.75rem;
    border-left: 3px solid var(--color-accent);
}

.related-list {
    list-style: none;
}

.related-item {
    display: flex;
    gap: 0.85rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--color-border);
}

.related-item:last-child {
    border-bottom: none;
}

.related-thumb {
    flex-shrink: 0;
    width: 110px;
    height: 80px;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: var(--color-bg);
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-info {
    flex: 1;
    min-width: 0;
}

.related-link {
    font-size: 0.9rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    display: block;
    margin-bottom: 0.25rem;
}

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

.related-info p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .banner-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .bento-large {
        grid-column: 1 / -1;
    }

    .feature-row {
        grid-template-columns: 1fr 1fr;
    }

    .steps-row {
        grid-template-columns: 1fr 1fr;
    }

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

    .home-article-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .sidebar {
        width: 260px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-py: 2.75rem;
        --header-h: 56px;
    }

    .menu-toggle {
        display: block;
    }

    .site-nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        padding: calc(var(--header-h) + 1rem) 1.25rem 2rem;
        z-index: 999;
        overflow-y: auto;
    }

    .site-nav.active {
        display: block;
    }

    .site-nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .site-nav li {
        width: 100%;
    }

    .site-nav a {
        padding: 0.85rem 1rem;
        font-size: 0.95rem;
        border-bottom: 1px solid var(--color-border);
        border-radius: 0;
        white-space: normal;
    }

    .site-logo {
        font-size: 1rem;
        max-width: calc(100% - 50px);
    }

    .banner {
        padding: 2.5rem 0;
    }

    .banner-text h2 {
        font-size: 1.5rem;
    }

    .banner-metrics {
        grid-template-columns: 1fr 1fr;
    }

    .feature-row,
    .bento-grid,
    .split-layout,
    .steps-row,
    .knowledge-grid,
    .faq-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .bento-large {
        grid-column: auto;
    }

    .info-strip {
        flex-direction: column;
    }

    .section-head h2 {
        font-size: 1.4rem;
    }

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

    .page-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .list-item {
        flex-direction: column;
    }

    .list-thumb {
        width: 100%;
        height: 160px;
    }

    .pagebar-inner {
        flex-direction: column;
        align-items: center;
    }

    .pagebar-left,
    .pagebar-center,
    .pagebar-right {
        flex: none;
        justify-content: center;
        width: 100%;
    }

    .article-detail {
        padding: 1.25rem;
    }

    .article-title {
        font-size: 1.3rem;
    }

    .related-item {
        flex-direction: column;
    }

    .related-thumb {
        width: 100%;
        height: 140px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.85rem;
    }

    .banner-text h2 {
        font-size: 1.3rem;
    }

    .banner-metrics {
        grid-template-columns: 1fr;
    }

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

    .btn {
        text-align: center;
    }

    .home-article-grid {
        grid-template-columns: 1fr;
    }

    .metric-card strong {
        font-size: 1.4rem;
    }

    .list-header {
        padding: 1rem;
    }

    .list-item {
        padding: 1rem;
    }

    .article-detail {
        padding: 1rem;
    }

    .pagebar a,
    .pagebar span {
        padding: 0.3rem 0.55rem;
        font-size: 0.8rem;
    }
}