/* ============================================
   官网主题 · 深靛蓝 + 铜棕配色（全新设计）
   ============================================ */
:root {
    --color-primary: #1e2a4a;
    --color-primary-light: #2c3e66;
    --color-accent: #b87333;
    --color-accent-hover: #9a5f28;
    --color-bg: #f5f3ef;
    --color-surface: #ffffff;
    --color-text: #2a2d35;
    --color-text-muted: #5c6370;
    --color-border: #ddd8cf;
    --color-border-light: #ebe7e0;
    --header-h: 68px;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 12px rgba(30, 42, 74, 0.08);
    --shadow-lg: 0 8px 28px rgba(30, 42, 74, 0.12);
    --gap-section: 3.5rem;
    --container: 1140px;
}

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

html {
    scroll-behavior: smooth;
}

body.z71db4body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

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

a {
    color: var(--color-accent);
    transition: color 0.2s ease;
}

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

/* 容器 */
.z71db4container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 头部导航 ========== */
.z71db4header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-h);
    background: var(--color-primary);
    border-bottom: 3px solid var(--color-accent);
    box-shadow: var(--shadow);
}

.z71db4header_inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
    gap: 1rem;
}

.z71db4logo h1 {
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 220px;
}

.z71db4logo_link {
    color: #fff;
    text-decoration: none;
}

.z71db4logo_link:hover {
    color: #e8c9a8;
}

.z71db4nav_toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.35);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.z71db4nav_toggle span {
    display: block;
    height: 2px;
    background: #fff;
    border-radius: 1px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.z71db4nav_toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.z71db4nav_toggle.is-open span:nth-child(2) {
    opacity: 0;
}
.z71db4nav_toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.z71db4nav_list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.15rem 0.5rem;
    list-style: none;
}

.z71db4nav_link {
    display: block;
    padding: 0.4rem 0.65rem;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.z71db4nav_link:hover {
    color: #fff;
    background: rgba(255,255,255,0.12);
}

.z71db4nav-item.z71db4this .z71db4nav_link,
.z71db4nav_list li.z71db4this .z71db4nav_link {
    color: #fff;
    background: var(--color-accent);
}

/* ========== 主内容区 ========== */
.z71db4main {
    margin-top: var(--header-h);
    padding-bottom: 2rem;
}

.z71db4section {
    padding: var(--gap-section) 0;
}

.z71db4section_head {
    text-align: center;
    margin-bottom: 2rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.z71db4section_head_left {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    max-width: none;
}

.z71db4section_title {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.z71db4section_sub {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* 按钮 */
.z71db4btn {
    display: inline-block;
    padding: 0.65rem 1.4rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    text-align: center;
}

.z71db4btn_primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.z71db4btn_primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
}

.z71db4btn_outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.z71db4btn_outline:hover {
    background: var(--color-primary);
    color: #fff;
}

/* 卡片 */
.z71db4card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.35rem 1.5rem;
    box-shadow: var(--shadow);
}

.z71db4card h3 {
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-bottom: 0.65rem;
    font-weight: 600;
}

.z71db4card p {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.z71db4card_grid {
    display: grid;
    gap: 1.25rem;
}

.z71db4card_grid_2 {
    grid-template-columns: repeat(2, 1fr);
}

.z71db4card_grid_3 {
    grid-template-columns: repeat(3, 1fr);
}

.z71db4card_highlight {
    border-left: 4px solid var(--color-accent);
}

/* ========== 首页 · 首屏 ========== */
.z71db4hero {
    background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: 3rem 0;
}

.z71db4hero_grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
}

.z71db4hero_label {
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #e8c9a8;
    margin-bottom: 0.75rem;
}

.z71db4hero_title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 1rem;
    color: #fff;
}

.z71db4hero_desc {
    font-size: 0.95rem;
    line-height: 1.75;
    color: rgba(255,255,255,0.88);
    margin-bottom: 1.5rem;
    max-width: 560px;
}

.z71db4hero_desc strong {
    color: #f0dcc4;
    font-weight: 600;
}

.z71db4hero_actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.z71db4hero .z71db4btn_outline {
    color: #fff;
    border-color: rgba(255,255,255,0.6);
}

.z71db4hero .z71db4btn_outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
    color: #fff;
}

.z71db4hero_stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.z71db4stat_card {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    min-width: 140px;
    text-align: center;
}

.z71db4stat_card strong {
    display: block;
    font-size: 1.25rem;
    color: #e8c9a8;
    margin-bottom: 0.2rem;
}

.z71db4stat_card span {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.8);
}

/* 平台 / 知识 / 评价 区块背景交替 */
.z71db4platform,
.z71db4knowledge,
.z71db4reviews {
    background: var(--color-surface);
}

.z71db4query,
.z71db4faq,
.z71db4contact {
    background: var(--color-bg);
}

/* 在线查询 */
.z71db4query_panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
    box-shadow: var(--shadow);
    max-width: 640px;
    margin: 0 auto;
}

.z71db4form_label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.z71db4form_row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.z71db4input {
    flex: 1;
    min-width: 0;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    background: #fff;
}

.z71db4input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.15);
}

.z71db4form_note {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* 轮播展示 */
.z71db4showcase_wrap {
    max-width: 640px;
    margin: 0 auto;
}

.z71db4showcase_frame {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    box-shadow: var(--shadow);
}

.z71db4showcase_frame img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
}

.z71db4showcase_ctrl {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.z71db4showcase_btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.z71db4showcase_btn:hover {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.z71db4showcase_dots {
    display: flex;
    gap: 0.4rem;
}

.z71db4showcase_dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: background 0.2s;
}

.z71db4showcase_dots .dot.active {
    background: var(--color-accent);
}

/* FAQ */
.z71db4faq_list {
    max-width: 800px;
    margin: 0 auto;
}

.z71db4faq_item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 0.65rem;
    overflow: hidden;
}

.z71db4faq_item summary {
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    list-style: none;
}

.z71db4faq_item summary::-webkit-details-marker {
    display: none;
}

.z71db4faq_item summary::after {
    content: "+";
    float: right;
    color: var(--color-accent);
    font-weight: 700;
}

.z71db4faq_item[open] summary::after {
    content: "−";
}

.z71db4faq_item p {
    padding: 0 1.25rem 1rem;
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* 资讯动态 */
.z71db4articles {
    background: var(--color-surface);
}

.z71db4articles_grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.z71db4article_card {
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
}

.z71db4article_card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.z71db4article_card_thumb {
    display: block;
    overflow: hidden;
}

.z71db4article_card_thumb img {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.z71db4article_card_body {
    padding: 0.75rem;
}

.z71db4article_card_title {
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 0.35rem;
}

.z71db4article_card_title a {
    color: var(--color-text);
    text-decoration: none;
}

.z71db4article_card_title a:hover {
    color: var(--color-accent);
}

.z71db4article_card_date {
    font-size: 0.72rem;
    color: var(--color-text-muted);
}

.z71db4articles_more {
    text-align: center;
    margin-top: 1.75rem;
}

/* 用户评价 */
.z71db4review_card {
    display: flex;
    flex-direction: column;
}

.z71db4review_card p {
    flex: 1;
    font-style: italic;
    margin-bottom: 1rem;
}

.z71db4review_card footer {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border-light);
    padding-top: 0.75rem;
}

/* 联络中心 */
.z71db4contact_grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 720px;
    margin: 0 auto;
}

.z71db4contact_item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.15rem 1.25rem;
}

.z71db4contact_icon {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #e8c9a8;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
}

.z71db4contact_item h3 {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.z71db4contact_item p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

/* ========== 内页布局 ========== */
.z71db4inner_main {
    padding: 1.5rem 0 2.5rem;
}

.z71db4layout_with_sidebar {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.z71db4content_main {
    flex: 1;
    min-width: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem;
    box-shadow: var(--shadow);
}

.z71db4sidebar {
    width: 260px;
    flex-shrink: 0;
}

.z71db4sidebar_inner {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.z71db4sidebar_block {
    padding: 1rem;
}

.z71db4sidebar_title {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-accent);
}

.z71db4sidebar_list {
    list-style: none;
}

.z71db4sidebar_item {
    display: flex;
    gap: 0.6rem;
    padding: 0.55rem 0;
    border-bottom: 1px dashed var(--color-border-light);
}

.z71db4sidebar_item:last-child {
    border-bottom: none;
}

.z71db4sidebar_thumb img {
    width: 72px;
    height: 54px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.z71db4sidebar_info {
    flex: 1;
    min-width: 0;
}

.z71db4sidebar_link {
    display: block;
    font-size: 0.82rem;
    color: var(--color-text);
    text-decoration: none;
    line-height: 1.4;
    margin-bottom: 0.2rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.z71db4sidebar_link:hover {
    color: var(--color-accent);
}

.z71db4sidebar_date {
    font-size: 0.72rem;
    color: var(--color-text-muted);
}

/* 面包屑 */
.z71db4breadcrumb {
    font-size: 0.84rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border-light);
}

.z71db4breadcrumb a {
    color: var(--color-accent);
    text-decoration: none;
}

/* 内容页 */
.z71db4article_title {
    font-size: 1.45rem;
    color: var(--color-primary);
    line-height: 1.4;
    margin-bottom: 0.85rem;
}

.z71db4article_meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    font-size: 0.84rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.z71db4article_meta a {
    color: var(--color-accent);
    text-decoration: none;
}

.z71db4meta_tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.z71db4tagitem a {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
}

.z71db4tagitem a:hover {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.z71db4article_litpic {
    text-align: center;
    margin-bottom: 1.25rem;
}

.z71db4article_litpic img {
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.z71db4article_body {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
}

.z71db4article_body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.z71db4article_images .z71db4image_item {
    margin-bottom: 1rem;
    text-align: center;
}

.z71db4article_nav {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 1rem 0;
    margin-top: 1rem;
    border-top: 1px solid var(--color-border-light);
    font-size: 0.9rem;
}

.z71db4article_nav a {
    color: var(--color-accent);
    text-decoration: none;
}

.z71db4related {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 2px solid var(--color-accent);
}

.z71db4related_item {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border-light);
}

.z71db4related_thumb img {
    width: 110px;
    height: 82px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.z71db4related_body h3 {
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
}

.z71db4related_body h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.z71db4related_body h3 a:hover {
    color: var(--color-accent);
}

.z71db4related_body p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* 列表页 */
.z71db4list_title {
    font-size: 1.35rem;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
}

.z71db4list_item {
    display: flex;
    gap: 1.15rem;
    padding: 1.15rem 0;
    border-bottom: 1px solid var(--color-border-light);
}

.z71db4list_item:last-child {
    border-bottom: none;
}

.z71db4list_thumb {
    flex-shrink: 0;
    width: 180px;
}

.z71db4list_thumb img {
    width: 100%;
    height: 125px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.z71db4list_body {
    flex: 1;
    min-width: 0;
}

.z71db4list_item_title {
    font-size: 1.05rem;
    margin-bottom: 0.45rem;
}

.z71db4list_item_title a {
    color: var(--color-text);
    text-decoration: none;
}

.z71db4list_item_title a:hover {
    color: var(--color-accent);
}

.z71db4list_meta {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.z71db4list_meta a {
    color: var(--color-accent);
    text-decoration: none;
}

.z71db4list_intro {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* 分页 */
.z71db4pagebar {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border-light);
}

.z71db4pagebar_inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.z71db4pagebar_left { text-align: left; flex-shrink: 0; }
.z71db4pagebar_center { flex: 1; text-align: center; min-width: 0; }
.z71db4pagebar_right { text-align: right; flex-shrink: 0; }

.z71db4pages .pagelist {
    list-style: none;
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    padding: 0;
    margin: 0;
}

.z71db4pagebar_left .pagelist { justify-content: flex-start; }
.z71db4pagebar_center .pagelist { justify-content: center; }
.z71db4pagebar_right .pagelist { justify-content: flex-end; }

.z71db4pages .pagelist a,
.z71db4pages .pagelist span {
    display: inline-block;
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.84rem;
    color: var(--color-text);
    text-decoration: none;
    background: #fff;
}

.z71db4pages .pagelist a:hover {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

/* 页脚 */
.z71db4footer {
    background: var(--color-primary);
    color: rgba(255,255,255,0.75);
    padding: 2rem 0 1.25rem;
    margin-top: 1rem;
}

.z71db4footer_keywords {
    font-size: 0.8rem;
    line-height: 1.9;
    margin-bottom: 1.25rem;
    word-break: break-word;
}

.z71db4footer_keywords a {
    color: #e8c9a8;
    text-decoration: none;
}

.z71db4footer_keywords a:hover {
    color: #fff;
    text-decoration: underline;
}

.z71db4footer_nav {
    font-size: 0.84rem;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.z71db4footer_nav a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
}

.z71db4footer_nav a:hover {
    color: #e8c9a8;
}

.z71db4footer_contact {
    font-size: 0.84rem;
    margin-bottom: 1.25rem;
}

.z71db4footer_copyright {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 1rem;
}

.z71db4footer_copyright p {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.55);
    margin-bottom: 0.25rem;
}

.z71db4footer_link {
    color: #e8c9a8;
}

.z71db4flink {
    max-width: var(--container);
    margin: 1rem auto;
    padding: 0 20px;
    font-size: 0.84rem;
}

.flink_title {
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
}

.flink_list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1rem;
}

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

.z71db4powered {
    text-align: center;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    padding: 0.25rem 20px 1rem;
}

.z71db4powered a {
    color: var(--color-accent);
}

.clear { clear: both; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .z71db4articles_grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z71db4card_grid_3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .z71db4hero_grid {
        grid-template-columns: 1fr;
    }

    .z71db4hero_stats {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .z71db4stat_card {
        flex: 1;
        min-width: 100px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-h: 60px;
        --gap-section: 2.5rem;
    }

    .z71db4nav_toggle {
        display: flex;
    }

    .z71db4nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--color-primary);
        border-bottom: 2px solid var(--color-accent);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .z71db4nav.is-open {
        max-height: 80vh;
        overflow-y: auto;
    }

    .z71db4nav_list {
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem 1rem 1rem;
        gap: 0.15rem;
    }

    .z71db4nav_link {
        padding: 0.65rem 0.85rem;
        border-radius: var(--radius-sm);
    }

    .z71db4logo h1 {
        max-width: 160px;
        font-size: 1rem;
    }

    .z71db4card_grid_2,
    .z71db4card_grid_3 {
        grid-template-columns: 1fr;
    }

    .z71db4articles_grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z71db4form_row {
        flex-direction: column;
    }

    .z71db4contact_grid {
        grid-template-columns: 1fr;
    }

    .z71db4layout_with_sidebar {
        flex-direction: column;
    }

    .z71db4sidebar {
        width: 100%;
    }

    .z71db4content_main {
        padding: 1.15rem;
    }

    .z71db4list_item {
        flex-direction: column;
    }

    .z71db4list_thumb {
        width: 100%;
    }

    .z71db4list_thumb img {
        height: auto;
        max-height: 200px;
    }

    .z71db4related_item {
        flex-direction: column;
    }

    .z71db4related_thumb img {
        width: 100%;
        height: auto;
        max-height: 160px;
    }

    .z71db4article_nav {
        flex-direction: column;
    }

    .z71db4pagebar_inner {
        flex-direction: column;
        align-items: stretch;
    }

    .z71db4pagebar_left .pagelist,
    .z71db4pagebar_center .pagelist,
    .z71db4pagebar_right .pagelist {
        justify-content: center;
    }

    .z71db4query_panel {
        padding: 1.25rem;
    }

    .z71db4section_title {
        font-size: 1.35rem;
    }
}

@media (max-width: 480px) {
    .z71db4container {
        padding: 0 14px;
    }

    .z71db4articles_grid {
        grid-template-columns: 1fr;
    }

    .z71db4article_card_thumb img {
        height: 160px;
    }

    .z71db4hero {
        padding: 2rem 0;
    }

    .z71db4hero_stats {
        flex-direction: column;
    }

    .z71db4stat_card {
        min-width: auto;
    }
}