/* ===== 设计变量：墨绿 + 铜橙 ===== */
:root {
    --c-primary: #1b4332;
    --c-primary-mid: #2d6a4f;
    --c-primary-light: #40916c;
    --c-accent: #bc6c25;
    --c-accent-light: #dda15e;
    --c-bg: #f4f6f3;
    --c-surface: #ffffff;
    --c-text: #1e2420;
    --c-text-muted: #5a635c;
    --c-border: #d8e0da;
    --c-shadow: rgba(27, 67, 50, 0.08);
    --radius: 8px;
    --radius-lg: 12px;
    --gap: 20px;
    --container: 1140px;
}

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

body {
    margin: 0;
    padding: 0;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.65;
    -webkit-text-size-adjust: 100%;
}

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

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

a:hover {
    color: var(--c-accent);
}

.z20003container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* ===== 页头导航 ===== */
.z20003site-header {
    background: var(--c-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}

.z20003header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 64px;
    position: relative;
}

.z20003site-header h1 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.z20003site-header h1 a {
    color: #fff;
    text-decoration: none;
}

.z20003main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 4px 2px;
}

.z20003main-nav li {
    margin: 0;
}

.z20003main-nav a {
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    font-size: 0.88rem;
    padding: 6px 10px;
    border-radius: 4px;
    display: block;
    white-space: nowrap;
    border-bottom: none;
}

.z20003main-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}

.z20003main-nav li.z20003this a,
.z20003main-nav li.thisclass a {
    color: #fff;
    background: var(--c-accent);
}

.z20003nav-toggle {
    display: none;
    position: relative;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    padding: 0;
}

.z20003nav-toggle span,
.z20003nav-toggle span::before,
.z20003nav-toggle span::after {
    display: block;
    background: #fff;
    height: 3px;
    width: 24px;
    border-radius: 2px;
    position: absolute;
    left: 6px;
    transition: all 0.25s;
}

.z20003nav-toggle span { top: 17px; }
.z20003nav-toggle span::before { content: ""; top: -8px; }
.z20003nav-toggle span::after { content: ""; top: 8px; }

/* ===== 首页 Hero ===== */
.z20003home-main {
    overflow-x: hidden;
}

.z20003hero {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-mid) 55%, #1a5350 100%);
    color: #fff;
    padding: 56px 0 48px;
}

.z20003hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.z20003hero-text h2 {
    font-size: 1.85rem;
    margin: 0 0 16px;
    line-height: 1.35;
    font-weight: 700;
}

.z20003hero-text p {
    font-size: 1rem;
    margin: 0 0 24px;
    opacity: 0.92;
    line-height: 1.75;
}

.z20003hero-visual {
    text-align: center;
}

.z20003hero-visual img {
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
    max-height: 320px;
    width: auto;
    object-fit: contain;
}

.z20003cta-btn {
    display: inline-block;
    background: var(--c-accent);
    color: #fff;
    padding: 12px 28px;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s;
}

.z20003cta-btn:hover {
    background: var(--c-accent-light);
    color: #fff;
    transform: translateY(-1px);
}

/* ===== 通用板块 ===== */
.z20003section {
    padding: 52px 0;
}

.z20003section-alt {
    background: var(--c-surface);
}

.z20003section-head {
    text-align: center;
    font-size: 1.45rem;
    color: var(--c-primary);
    margin: 0 0 28px;
    font-weight: 700;
    position: relative;
    padding-bottom: 12px;
}

.z20003section-head::after {
    content: "";
    display: block;
    width: 48px;
    height: 3px;
    background: var(--c-accent);
    margin: 10px auto 0;
    border-radius: 2px;
}

.z20003section-desc {
    text-align: center;
    color: var(--c-text-muted);
    max-width: 680px;
    margin: -12px auto 28px;
    font-size: 0.95rem;
}

/* ===== 关于我们 ===== */
.z20003about-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 32px;
    align-items: start;
}

.z20003about-intro p {
    margin: 0 0 14px;
    color: var(--c-text-muted);
    font-size: 0.95rem;
    text-align: left;
}

.z20003about-intro p:last-child {
    margin-bottom: 0;
}

.z20003about-pillars {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.z20003pillar {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-left: 4px solid var(--c-primary-light);
    border-radius: var(--radius);
    padding: 16px 18px;
    box-shadow: 0 2px 8px var(--c-shadow);
}

.z20003section-alt .z20003pillar {
    background: var(--c-bg);
}

.z20003pillar-num {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--c-accent);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.z20003pillar h4 {
    margin: 0 0 6px;
    font-size: 1rem;
    color: var(--c-primary);
}

.z20003pillar p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--c-text-muted);
    line-height: 1.6;
}

/* ===== 服务项目 ===== */
.z20003services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.z20003service-item {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 20px 22px;
    transition: box-shadow 0.2s;
}

.z20003section-alt .z20003service-item {
    background: var(--c-surface);
}

.z20003service-item:hover {
    box-shadow: 0 4px 16px var(--c-shadow);
}

.z20003service-item h4 {
    margin: 0 0 10px;
    font-size: 1.05rem;
    color: var(--c-primary);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--c-border);
}

.z20003service-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--c-text-muted);
    line-height: 1.65;
}

/* ===== 优势 ===== */
.z20003advantages-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.z20003advantage-item {
    text-align: center;
    padding: 22px 14px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    border-top: 3px solid var(--c-accent);
}

.z20003advantage-item h4 {
    margin: 0 0 8px;
    font-size: 0.95rem;
    color: var(--c-primary);
}

.z20003advantage-item p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--c-text-muted);
    line-height: 1.55;
}

/* ===== 委托流程时间线 ===== */
.z20003timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    position: relative;
}

.z20003timeline-step {
    text-align: center;
    padding: 18px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    position: relative;
}

.z20003section-alt .z20003timeline-step {
    background: var(--c-surface);
}

.z20003step-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.z20003timeline-step h4 {
    margin: 0 0 6px;
    font-size: 0.92rem;
    color: var(--c-primary);
}

.z20003timeline-step p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--c-text-muted);
    line-height: 1.5;
}

/* ===== 常见问题 ===== */
.z20003faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.z20003faq-item {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 18px 20px;
}

.z20003faq-item h4 {
    margin: 0 0 8px;
    font-size: 0.95rem;
    color: var(--c-primary);
    padding-left: 12px;
    border-left: 3px solid var(--c-accent);
}

.z20003faq-item p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--c-text-muted);
    line-height: 1.6;
}

/* ===== 首页文章板块 ===== */
.z20003articles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

.z20003article-card {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.2s, transform 0.15s;
}

.z20003section-alt .z20003article-card {
    background: var(--c-surface);
}

.z20003article-card:hover {
    box-shadow: 0 6px 20px var(--c-shadow);
    transform: translateY(-2px);
}

.z20003article-thumb {
    display: block;
    width: 100%;
    height: 120px;
    overflow: hidden;
    background: #e8ede9;
}

.z20003article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.25s;
}

.z20003article-card:hover .z20003article-thumb img {
    transform: scale(1.04);
}

.z20003article-info {
    padding: 10px 10px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.z20003article-info h4 {
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.4;
    flex: 1;
}

.z20003article-info h4 a {
    color: var(--c-text);
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z20003article-info h4 a:hover {
    color: var(--c-primary-mid);
}

.z20003article-date {
    font-size: 0.75rem;
    color: var(--c-text-muted);
}

/* ===== 流程图示 ===== */
.z20003flow-pipeline {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.z20003flow-node {
    flex: 1 1 140px;
    min-width: 120px;
    max-width: 180px;
    text-align: center;
    padding: 16px 12px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
}

.z20003flow-node span {
    display: inline-block;
    background: var(--c-primary);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 8px;
}

.z20003flow-node p {
    margin: 0;
    font-size: 0.78rem;
    color: var(--c-text-muted);
    line-height: 1.45;
}

.z20003flow-arrow {
    flex: 0 0 24px;
    align-self: center;
    height: 2px;
    background: var(--c-accent);
    position: relative;
    min-width: 16px;
}

.z20003flow-arrow::after {
    content: "";
    position: absolute;
    right: 0;
    top: -4px;
    border: 5px solid transparent;
    border-left-color: var(--c-accent);
}

/* ===== 主题资讯 ===== */
.z20003knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.z20003knowledge-item {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 20px 18px;
    transition: border-color 0.2s;
}

.z20003section-alt .z20003knowledge-item {
    background: var(--c-surface);
}

.z20003knowledge-item:hover {
    border-color: var(--c-primary-light);
}

.z20003knowledge-item h4 {
    margin: 0 0 10px;
    font-size: 0.95rem;
    color: var(--c-primary);
    line-height: 1.4;
}

.z20003knowledge-item p {
    margin: 0;
    font-size: 0.86rem;
    color: var(--c-text-muted);
    line-height: 1.6;
}

/* ===== 页脚 ===== */
.z20003site-footer {
    background: var(--c-primary);
    color: rgba(255, 255, 255, 0.85);
    text-align: center;
    padding: 24px 0;
    font-size: 0.88rem;
    margin-top: 0;
}

.z20003site-footer p {
    margin: 4px 0;
}

.z20003site-footer a {
    color: var(--c-accent-light);
    text-decoration: none;
}

.z20003site-footer a:hover {
    color: #fff;
}

/* ===== 列表页 / 内容页布局 ===== */
.z20003page-layout {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 28px 0 40px;
}

.z20003main-content {
    flex: 1 1 0;
    min-width: 0;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 24px 26px;
    box-shadow: 0 2px 10px var(--c-shadow);
}

.z20003sidebar {
    flex: 0 0 260px;
    width: 260px;
    min-width: 0;
}

.z20003sidebar-block {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 10px var(--c-shadow);
}

.z20003sidebar-list {
    list-style: none;
    margin: 0;
    padding: 6px 10px;
}

.z20003sidebar-item {
    border-bottom: 1px solid var(--c-border);
    padding: 8px 0;
}

.z20003sidebar-item:last-child {
    border-bottom: none;
}

.z20003sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--c-text);
    font-size: 0.86rem;
    line-height: 1.4;
}

.z20003sidebar-link:hover {
    color: var(--c-primary-mid);
}

.z20003sidebar-thumb {
    flex: 0 0 52px;
    width: 52px;
    height: 40px;
    overflow: hidden;
    border-radius: 4px;
    background: #e8ede9;
}

.z20003sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z20003sidebar-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ===== 内容页 ===== */
.z20003article-header {
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 14px;
    margin-bottom: 18px;
}

.z20003article-title {
    font-size: 1.45rem;
    color: var(--c-primary);
    margin: 0 0 10px;
    line-height: 1.4;
    word-break: break-word;
}

.z20003article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    font-size: 0.85rem;
    color: var(--c-text-muted);
}

.z20003article-meta a {
    color: var(--c-primary-mid);
    text-decoration: none;
}

.z20003article-litpic {
    text-align: center;
    margin-bottom: 18px;
}

.z20003article-litpic img {
    border-radius: var(--radius);
    margin: 0 auto;
}

.z20003article-body {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--c-text);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.z20003article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
}

.z20003diyfield {
    margin-top: 14px;
    padding: 12px 14px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.z20003article-images {
    margin-top: 18px;
}

.z20003article-figure {
    margin: 0 0 14px;
    text-align: center;
}

.z20003article-figure figcaption {
    font-size: 0.85rem;
    color: var(--c-text-muted);
    margin-top: 6px;
}

.z20003meta-tags {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.z20003tagitem a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    color: var(--c-primary-mid);
    border-radius: 20px;
    font-size: 0.82rem;
    text-decoration: none;
}

.z20003tagitem a:hover {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

.z20003prenext {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--c-border);
    font-size: 0.88rem;
}

.z20003prenext-item {
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.z20003prenext-pre { text-align: left; }
.z20003prenext-next { text-align: right; }

.z20003prenext a {
    color: var(--c-primary-mid);
    text-decoration: none;
}

.z20003prenext a:hover {
    color: var(--c-accent);
}

.z20003related {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--c-border);
}

.z20003related-title {
    font-size: 1.1rem;
    color: var(--c-primary);
    margin: 0 0 14px;
}

.z20003related-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z20003related-item {
    padding: 10px 0;
    border-bottom: 1px solid var(--c-border);
}

.z20003related-item:last-child {
    border-bottom: none;
}

.z20003related-link {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: var(--c-text);
}

.z20003related-link:hover strong {
    color: var(--c-primary-mid);
}

.z20003related-thumb {
    flex: 0 0 72px;
    width: 72px;
    height: 54px;
    overflow: hidden;
    border-radius: 4px;
    background: #e8ede9;
}

.z20003related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z20003related-info {
    flex: 1;
    min-width: 0;
}

.z20003related-info strong {
    display: block;
    font-size: 0.92rem;
    margin-bottom: 3px;
    line-height: 1.4;
}

.z20003related-info p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--c-text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== 列表页 ===== */
.z20003list-header {
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.z20003list-title {
    font-size: 1.35rem;
    color: var(--c-primary);
    margin: 0;
}

.z20003list-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z20003list-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--c-border);
}

.z20003list-item:last-child {
    border-bottom: none;
}

.z20003list-thumb {
    flex: 0 0 150px;
    width: 150px;
    height: 100px;
    overflow: hidden;
    border-radius: var(--radius);
    background: #e8ede9;
    display: block;
}

.z20003list-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s;
}

.z20003list-thumb:hover img {
    transform: scale(1.04);
}

.z20003list-info {
    flex: 1;
    min-width: 0;
}

.z20003list-item-title {
    margin: 0 0 6px;
    font-size: 1.05rem;
    line-height: 1.4;
}

.z20003list-item-title a {
    color: var(--c-primary);
    text-decoration: none;
}

.z20003list-item-title a:hover {
    color: var(--c-accent);
}

.z20003list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    font-size: 0.82rem;
    color: var(--c-text-muted);
    margin-bottom: 6px;
}

.z20003list-intro {
    margin: 0;
    font-size: 0.88rem;
    color: var(--c-text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== 分页 ===== */
.z20003pagebar {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--c-border);
}

.z20003pages {
    width: 100%;
    overflow-x: auto;
}

.z20003pagebar .pagelist,
.z20003pagebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.z20003pagebar a,
.z20003pagebar span {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    color: var(--c-primary-mid);
    text-decoration: none;
    font-size: 0.86rem;
    background: var(--c-surface);
    white-space: nowrap;
}

.z20003pagebar a:hover {
    background: var(--c-primary-mid);
    color: #fff;
    border-color: var(--c-primary-mid);
}

.z20003pagebar .thisclass,
.z20003pagebar .thisclass a {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .z20003articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z20003advantages-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .z20003timeline {
        grid-template-columns: repeat(3, 1fr);
    }

    .z20003knowledge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .z20003container {
        padding: 0 14px;
    }

    .z20003header-inner {
        flex-wrap: wrap;
        min-height: 56px;
        padding: 8px 0;
    }

    .z20003nav-toggle {
        display: block;
    }

    .z20003main-nav {
        width: 100%;
        order: 3;
    }

    .z20003main-nav ul {
        display: none;
        flex-direction: column;
        background: var(--c-primary-mid);
        border-radius: var(--radius);
        padding: 8px;
        margin-top: 4px;
        max-height: 70vh;
        overflow-y: auto;
    }

    .z20003main-nav ul.active {
        display: flex;
    }

    .z20003main-nav a {
        padding: 10px 12px;
        white-space: normal;
    }

    .z20003hero {
        padding: 36px 0 32px;
    }

    .z20003hero-inner {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }

    .z20003hero-text h2 {
        font-size: 1.4rem;
    }

    .z20003hero-visual img {
        max-height: 240px;
    }

    .z20003section {
        padding: 36px 0;
    }

    .z20003about-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z20003services-grid {
        grid-template-columns: 1fr;
    }

    .z20003advantages-row {
        grid-template-columns: 1fr 1fr;
    }

    .z20003timeline {
        grid-template-columns: 1fr 1fr;
    }

    .z20003faq-grid {
        grid-template-columns: 1fr;
    }

    .z20003articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .z20003flow-pipeline {
        flex-direction: column;
        align-items: center;
    }

    .z20003flow-node {
        max-width: 100%;
        width: 100%;
    }

    .z20003flow-arrow {
        width: 2px;
        height: 20px;
        flex: none;
        min-width: 0;
    }

    .z20003flow-arrow::after {
        top: auto;
        bottom: -4px;
        right: -4px;
        border: 5px solid transparent;
        border-top-color: var(--c-accent);
        border-left-color: transparent;
    }

    .z20003knowledge-grid {
        grid-template-columns: 1fr;
    }

    .z20003page-layout {
        flex-direction: column;
        padding: 20px 0 32px;
    }

    .z20003sidebar {
        width: 100%;
        flex: none;
    }

    .z20003main-content {
        padding: 18px 16px;
    }

    .z20003prenext {
        flex-direction: column;
        gap: 10px;
    }

    .z20003prenext-next {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .z20003site-header h1 {
        font-size: 1.05rem;
        max-width: calc(100% - 44px);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .z20003advantages-row {
        grid-template-columns: 1fr;
    }

    .z20003timeline {
        grid-template-columns: 1fr;
    }

    .z20003articles-grid {
        grid-template-columns: 1fr;
    }

    .z20003article-thumb {
        height: 160px;
    }

    .z20003list-item {
        flex-direction: column;
    }

    .z20003list-thumb {
        width: 100%;
        height: 160px;
        flex: none;
    }

    .z20003related-link {
        flex-direction: column;
    }

    .z20003related-thumb {
        width: 100%;
        height: 120px;
    }

    .z20003pagebar a,
    .z20003pagebar span {
        padding: 5px 10px;
        font-size: 0.82rem;
    }
}

@media (min-width: 769px) {
    .z20003nav-toggle {
        display: none;
    }
}