/* ========================================
   主题变量 — 靛蓝 + 青绿 官网风格
   ======================================== */
:root {
    --c-primary: #0c1929;
    --c-primary-light: #1a3352;
    --c-accent: #0d9488;
    --c-accent-dark: #0f766e;
    --c-accent-soft: #ccfbf1;
    --c-warm: #d97706;
    --c-warm-soft: #fef3c7;
    --c-text: #1e293b;
    --c-text-muted: #64748b;
    --c-white: #ffffff;
    --c-bg: #f1f5f9;
    --c-bg-alt: #e2e8f0;
    --c-border: #cbd5e1;
    --c-border-light: #e2e8f0;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 3px rgba(12, 25, 41, 0.06);
    --shadow-md: 0 4px 16px rgba(12, 25, 41, 0.08);
    --container: 1140px;
    --nav-h: 64px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

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

body.nav-open {
    overflow: hidden;
}

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

a {
    color: var(--c-accent-dark);
    text-decoration: none;
    transition: color var(--transition);
}

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

ul, ol {
    list-style: none;
}

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

.clear {
    clear: both;
}

/* ========================================
   按钮
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--c-accent);
    color: var(--c-white);
    border-color: var(--c-accent);
}

.btn-primary:hover {
    background: var(--c-accent-dark);
    border-color: var(--c-accent-dark);
    color: var(--c-white);
}

.btn-outline {
    background: transparent;
    color: var(--c-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--c-white);
    color: var(--c-white);
}

.btn-block {
    width: 100%;
}

/* ========================================
   头部导航
   ======================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--c-white);
}

.top-bar {
    background: var(--c-primary);
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    padding: 7px 0;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.top-tag {
    color: var(--c-accent-soft);
    font-weight: 500;
}

.top-phone {
    font-weight: 500;
}

.main-nav {
    border-bottom: 1px solid var(--c-border-light);
    transition: box-shadow var(--transition);
}

.main-nav.is-scrolled {
    box-shadow: var(--shadow-md);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-h);
    gap: 16px;
}

.logo a {
    font-size: 20px;
    font-weight: 700;
    color: var(--c-primary);
    letter-spacing: 0.5px;
}

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

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.nav-menu a {
    display: block;
    padding: 8px 14px;
    color: var(--c-text);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-menu a:hover {
    color: var(--c-accent);
    background: var(--c-accent-soft);
}

.nav-menu .z784d1this > a,
.nav-menu li.z784d1this > a {
    color: var(--c-accent-dark);
    background: var(--c-accent-soft);
}

.nav-trigger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
}

.nav-trigger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--c-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

.nav-trigger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-trigger.is-active span:nth-child(2) {
    opacity: 0;
}

.nav-trigger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   首页 — Hero
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 60%, #1e4d6b 100%);
    color: var(--c-white);
    padding: 72px 0 64px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(13, 148, 136, 0.25);
    border: 1px solid rgba(13, 148, 136, 0.4);
    border-radius: 20px;
    font-size: 13px;
    color: var(--c-accent-soft);
    margin-bottom: 18px;
}

.hero-text h1 {
    font-size: 36px;
    line-height: 1.35;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-panel {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    padding: 28px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.hero-stat {
    text-align: center;
    padding: 16px 8px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat strong {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--c-accent-soft);
    line-height: 1.2;
}

.hero-stat span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
    display: block;
}

.hero-panel-note {
    grid-column: 1 / -1;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    line-height: 1.6;
}

/* ========================================
   首页 — 条带
   ======================================== */
.strip-bar {
    background: var(--c-white);
    border-bottom: 1px solid var(--c-border-light);
    padding: 20px 0;
}

.strip-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.strip-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius-sm);
    background: var(--c-bg);
}

.strip-item em {
    font-style: normal;
    font-size: 20px;
    font-weight: 700;
    color: var(--c-accent);
    flex-shrink: 0;
}

.strip-item span {
    font-size: 14px;
    font-weight: 500;
    color: var(--c-text);
}

/* ========================================
   首页 — 通用板块
   ======================================== */
.section-block {
    padding: 64px 0;
}

.section-alt {
    background: var(--c-white);
}

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 40px;
}

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

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--c-accent);
    margin-bottom: 8px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--c-primary);
    line-height: 1.35;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 15px;
    color: var(--c-text-muted);
    line-height: 1.7;
}

/* 服务卡片 */
.service-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.svc-card {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.section-alt .svc-card {
    background: var(--c-bg);
}

.svc-card:hover {
    border-color: var(--c-accent);
    box-shadow: var(--shadow-md);
}

.svc-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-accent-soft);
    color: var(--c-accent-dark);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}

.svc-card h3 {
    font-size: 18px;
    color: var(--c-primary);
    margin-bottom: 10px;
}

.svc-card p {
    font-size: 14px;
    color: var(--c-text-muted);
    line-height: 1.75;
}

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

.flow-item {
    background: var(--c-bg);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    position: relative;
}

.section-alt .flow-item {
    background: var(--c-white);
}

.flow-num {
    width: 36px;
    height: 36px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-accent);
    color: var(--c-white);
    border-radius: 50%;
    font-size: 16px;
    font-weight: 700;
}

.flow-item h3 {
    font-size: 16px;
    color: var(--c-primary);
    margin-bottom: 8px;
}

.flow-item p {
    font-size: 13px;
    color: var(--c-text-muted);
    line-height: 1.65;
}

/* 双栏知识 */
.dual-layout {
    display: grid;
    grid-template-columns: 1.4fr 0.6fr;
    gap: 24px;
    align-items: start;
}

.knowledge-box {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 28px;
}

.knowledge-box h3 {
    font-size: 16px;
    color: var(--c-primary);
    margin-bottom: 8px;
    margin-top: 20px;
}

.knowledge-box h3:first-child {
    margin-top: 0;
}

.knowledge-box p {
    font-size: 14px;
    color: var(--c-text-muted);
    line-height: 1.75;
}

.info-card {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
}

.info-card:last-child {
    margin-bottom: 0;
}

.info-card.highlight {
    background: var(--c-accent-soft);
    border-color: rgba(13, 148, 136, 0.25);
}

.info-card h3 {
    font-size: 16px;
    color: var(--c-primary);
    margin-bottom: 12px;
}

.info-card p {
    font-size: 14px;
    color: var(--c-text-muted);
    line-height: 1.65;
}

.check-list li {
    font-size: 14px;
    color: var(--c-text);
    padding: 7px 0 7px 22px;
    position: relative;
    border-bottom: 1px solid var(--c-border-light);
}

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

.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 13px;
    width: 8px;
    height: 8px;
    background: var(--c-accent);
    border-radius: 50%;
}

/* 联系 */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 24px;
    align-items: stretch;
}

.contact-card {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 28px;
}

.contact-card h3 {
    font-size: 18px;
    color: var(--c-primary);
    margin-bottom: 20px;
}

.contact-dl dt {
    font-size: 12px;
    color: var(--c-text-muted);
    margin-bottom: 2px;
}

.contact-dl dd {
    font-size: 16px;
    font-weight: 600;
    color: var(--c-primary);
    margin-bottom: 16px;
}

.contact-dl dd:last-child {
    margin-bottom: 0;
}

.contact-tip {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--c-border-light);
    font-size: 13px;
    color: var(--c-text-muted);
    line-height: 1.65;
}

.contact-form {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-field {
    display: block;
    margin-bottom: 16px;
}

.form-row .form-field {
    margin-bottom: 0;
}

.form-field span {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--c-text);
    margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--c-text);
    background: var(--c-bg);
    transition: border-color var(--transition);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--c-accent);
    background: var(--c-white);
}

.form-field textarea {
    resize: vertical;
    min-height: 100px;
}

/* 关于 / FAQ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.about-text p {
    font-size: 15px;
    color: var(--c-text-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.about-tags span {
    padding: 5px 14px;
    background: var(--c-accent-soft);
    color: var(--c-accent-dark);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-item summary {
    padding: 14px 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-primary);
    cursor: pointer;
    list-style: none;
}

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

.faq-item p {
    padding: 0 18px 14px;
    font-size: 13px;
    color: var(--c-text-muted);
    line-height: 1.7;
}

/* 首页文章 */
.home-articles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.home-article-card {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.home-article-card:hover {
    border-color: var(--c-accent);
    box-shadow: var(--shadow-md);
}

.home-article-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.home-article-thumb {
    width: 100%;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: var(--c-bg-alt);
}

.home-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

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

.home-article-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--c-primary);
    padding: 12px 14px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.home-article-card:hover .home-article-title {
    color: var(--c-accent-dark);
}

.home-article-card p,
.home-article-card .home-article-desc {
    display: none;
}

/* ========================================
   页脚
   ======================================== */
.site-footer {
    background: var(--c-primary);
    color: rgba(255, 255, 255, 0.75);
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 32px;
}

.footer-col h4 {
    font-size: 15px;
    color: var(--c-white);
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-col ul li {
    margin-bottom: 8px;
    font-size: 14px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-col a:hover {
    color: var(--c-accent-soft);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
}

.footer-bottom .copyright {
    margin-top: 4px;
    opacity: 0.6;
}

/* ========================================
   内页通用
   ======================================== */
.page-main {
    padding-bottom: 56px;
}

.page-banner {
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    color: var(--c-white);
    padding: 36px 0;
    margin-bottom: 32px;
}

.page-banner .page-title {
    font-size: 26px;
    font-weight: 700;
    margin-top: 12px;
    line-height: 1.35;
}

.breadcrumb {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
}

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

.breadcrumb .sep {
    margin: 0 8px;
    opacity: 0.5;
}

.breadcrumb .current {
    opacity: 0.65;
    word-break: break-all;
}

.page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 24px;
    align-items: start;
}

.page-content {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    padding: 28px;
    min-width: 0;
}

/* ========================================
   侧栏
   ======================================== */
.page-sidebar {
    position: sticky;
    top: calc(var(--nav-h) + 16px);
    min-width: 0;
}

.sidebar-widget {
    background: var(--c-white);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius);
    overflow: hidden;
}

.widget-title {
    font-size: 15px;
    font-weight: 600;
    padding: 14px 18px;
    background: var(--c-primary);
    color: var(--c-white);
    margin: 0;
}

.sidebar-article-list {
    padding: 8px 12px;
    max-height: 520px;
    overflow-y: auto;
}

.sidebar-article-item {
    border-bottom: 1px solid var(--c-border-light);
}

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

.sidebar-article-link {
    display: flex;
    gap: 10px;
    padding: 10px 4px;
    color: var(--c-text);
    text-decoration: none;
    align-items: center;
    transition: color var(--transition);
}

.sidebar-article-link:hover {
    color: var(--c-accent-dark);
}

.sidebar-thumb {
    flex-shrink: 0;
    width: 64px;
    height: 48px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border-light);
}

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

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

.sidebar-article-title {
    font-size: 13px;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   列表页
   ======================================== */
.article-list-item {
    border-bottom: 1px solid var(--c-border-light);
}

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

.article-list-link {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    color: inherit;
    text-decoration: none;
    align-items: flex-start;
}

.article-list-link:first-child {
    padding-top: 0;
}

.article-list-thumb {
    flex-shrink: 0;
    width: 200px;
    height: 134px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border-light);
}

.article-list-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.article-list-link:hover .article-list-thumb img {
    transform: scale(1.03);
}

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

.article-list-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--c-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    transition: color var(--transition);
}

.article-list-link:hover .article-list-title {
    color: var(--c-accent-dark);
}

.article-list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: var(--c-text-muted);
    margin-bottom: 8px;
}

.article-list-meta a {
    color: var(--c-accent-dark);
}

.article-list-intro {
    font-size: 14px;
    color: var(--c-text-muted);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 分页 */
.pagebar {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--c-border-light);
}

.pagelist-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.pagelist-left,
.pagelist-center,
.pagelist-right {
    flex: 1;
    min-width: 0;
}

.pagelist-left { text-align: left; }
.pagelist-center { text-align: center; }
.pagelist-right { text-align: right; }

.z784d1pages .pagelist {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z784d1pages .pagelist li {
    list-style: none;
}

.z784d1pages .pagelist a,
.z784d1pages .pagelist span {
    display: inline-block;
    padding: 7px 14px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--c-text);
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--transition);
}

.z784d1pages .pagelist a:hover {
    background: var(--c-accent);
    border-color: var(--c-accent);
    color: var(--c-white);
}

.z784d1pages .pagelist .thisclass a,
.z784d1pages .pagelist .thisclass span {
    background: var(--c-accent);
    border-color: var(--c-accent);
    color: var(--c-white);
}

/* ========================================
   内容页
   ======================================== */
.article-header {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--c-border-light);
}

.article-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--c-primary);
    line-height: 1.4;
    margin-bottom: 14px;
    word-break: break-word;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--c-text-muted);
}

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

.article-thumb {
    margin-bottom: 24px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--c-border-light);
    text-align: center;
    background: var(--c-bg);
}

.article-thumb img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.article-body {
    font-size: 15px;
    line-height: 1.85;
    color: var(--c-text);
    margin-bottom: 28px;
    word-break: break-word;
    overflow-wrap: break-word;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: 12px auto;
}

.article-body p {
    margin-bottom: 14px;
}

.article-body table {
    max-width: 100%;
    overflow-x: auto;
    display: block;
}

.z784d1diyfield {
    margin-bottom: 24px;
    padding: 16px;
    background: var(--c-bg);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.article-images {
    margin-bottom: 24px;
}

.article-image-item {
    margin-bottom: 16px;
    text-align: center;
}

.article-image-item img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    border: 1px solid var(--c-border-light);
}

.article-image-item figcaption {
    font-size: 13px;
    color: var(--c-text-muted);
    margin-top: 6px;
}

.z784d1meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding: 16px 0;
    border-top: 1px solid var(--c-border-light);
    border-bottom: 1px solid var(--c-border-light);
}

.z784d1tagitem a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border-light);
    border-radius: 20px;
    font-size: 12px;
    color: var(--c-text);
    transition: all var(--transition);
}

.z784d1tagitem a:hover {
    background: var(--c-accent-soft);
    border-color: var(--c-accent);
    color: var(--c-accent-dark);
}

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 32px;
    padding: 16px 0;
    border-top: 1px solid var(--c-border-light);
}

.article-nav-item {
    flex: 1;
    min-width: 0;
    max-width: 48%;
    font-size: 13px;
    line-height: 1.6;
}

.article-nav-item a {
    color: var(--c-text);
    word-break: break-all;
}

.article-nav-item a:hover {
    color: var(--c-accent-dark);
}

.article-nav-item.next {
    text-align: right;
}

.related-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--c-primary);
    margin-bottom: 16px;
    padding-left: 12px;
    border-left: 3px solid var(--c-accent);
}

.related-item {
    border-bottom: 1px solid var(--c-border-light);
}

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

.related-link {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    color: inherit;
    text-decoration: none;
    align-items: flex-start;
}

.related-thumb {
    flex-shrink: 0;
    width: 110px;
    height: 74px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border-light);
}

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

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

.related-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-primary);
    margin-bottom: 4px;
    line-height: 1.4;
    transition: color var(--transition);
}

.related-link:hover h4 {
    color: var(--c-accent-dark);
}

.related-info p {
    font-size: 12px;
    color: var(--c-text-muted);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   响应式 — 平板
   ======================================== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .service-cards {
        grid-template-columns: 1fr;
    }

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

    .dual-layout {
        grid-template-columns: 1fr;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

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

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

    .page-layout {
        grid-template-columns: minmax(0, 1fr) 260px;
        gap: 20px;
    }

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

/* ========================================
   响应式 — 手机
   ======================================== */
@media (max-width: 768px) {
    .nav-trigger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(300px, 85vw);
        height: 100vh;
        height: 100dvh;
        background: var(--c-primary);
        padding: 72px 20px 24px;
        transition: right var(--transition);
        z-index: 999;
        overflow-y: auto;
    }

    .nav-menu.is-open {
        right: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 2px;
    }

    .nav-menu a {
        color: rgba(255, 255, 255, 0.85);
        padding: 12px 16px;
        font-size: 15px;
    }

    .nav-menu a:hover,
    .nav-menu .z784d1this > a,
    .nav-menu li.z784d1this > a {
        color: var(--c-white);
        background: rgba(13, 148, 136, 0.25);
    }

    .nav-trigger {
        z-index: 1001;
    }

    .nav-trigger.is-active span {
        background: var(--c-white);
    }

    .hero {
        padding: 48px 0 40px;
    }

    .hero-text h1 {
        font-size: 26px;
    }

    .hero-desc {
        font-size: 15px;
    }

    .hero-panel {
        grid-template-columns: repeat(3, 1fr);
        padding: 20px;
        gap: 10px;
    }

    .hero-stat strong {
        font-size: 22px;
    }

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

    .section-block {
        padding: 48px 0;
    }

    .section-title {
        font-size: 22px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-row .form-field {
        margin-bottom: 16px;
    }

    .home-articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .page-layout {
        grid-template-columns: 1fr;
    }

    .page-sidebar {
        position: static;
    }

    .page-content {
        padding: 20px 16px;
    }

    .page-banner {
        padding: 28px 0;
        margin-bottom: 20px;
    }

    .page-banner .page-title {
        font-size: 22px;
    }

    .article-list-link {
        flex-direction: column;
        gap: 12px;
        padding: 16px 0;
    }

    .article-list-thumb {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 10;
    }

    .article-list-title {
        font-size: 16px;
    }

    .article-title {
        font-size: 20px;
    }

    .article-nav {
        flex-direction: column;
    }

    .article-nav-item {
        max-width: 100%;
    }

    .article-nav-item.next {
        text-align: left;
    }

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

    .related-thumb {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 10;
    }

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

    .pagelist-left,
    .pagelist-center,
    .pagelist-right {
        text-align: center;
    }

    .z784d1pages .pagelist {
        justify-content: center;
    }

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

    .sidebar-article-list {
        max-height: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-text h1 {
        font-size: 22px;
    }

    .hero-panel {
        grid-template-columns: 1fr;
    }

    .hero-stat {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
        padding: 12px 16px;
    }

    .hero-stat strong {
        font-size: 20px;
    }

    .strip-inner {
        grid-template-columns: 1fr;
    }

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

    .svc-card,
    .knowledge-box,
    .contact-card,
    .contact-form,
    .info-card {
        padding: 20px;
    }

    .article-list-meta {
        flex-direction: column;
        gap: 4px;
    }

    .z784d1pages .pagelist a,
    .z784d1pages .pagelist span {
        padding: 6px 10px;
        font-size: 12px;
    }
}

/* 触摸优化 */
@media (hover: none) {
    .svc-card:active,
    .home-article-card:active {
        transform: scale(0.99);
    }
}

/* 打印 */
@media print {
    .site-header,
    .page-sidebar,
    .contact-form,
    .nav-trigger {
        display: none !important;
    }

    .page-content {
        border: none;
        box-shadow: none;
        padding: 0;
    }
}