/* ===== 设计变量：墨绿 + 琥珀 官方风 ===== */
:root {
    --c-dark: #0F172A;
    --c-brand: #047857;
    --c-brand-light: #059669;
    --c-accent: #D97706;
    --c-bg: #F8FAFC;
    --c-bg-alt: #F1F5F9;
    --c-white: #FFFFFF;
    --c-text: #334155;
    --c-text-muted: #64748B;
    --c-border: #E2E8F0;
    --c-border-dark: rgba(255,255,255,0.12);
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(15,23,42,0.06);
    --shadow-md: 0 4px 16px rgba(15,23,42,0.08);
    --header-h: 68px;
    --container: 1140px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--c-text);
    background: var(--c-white);
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

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

a {
    color: var(--c-brand);
    -webkit-tap-highlight-color: transparent;
}

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

/* ===== 头部导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--c-white);
    border-bottom: 1px solid var(--c-border);
    height: var(--header-h);
}

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

.site-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--c-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
    flex-shrink: 0;
}

.site-logo a {
    text-decoration: none;
    color: inherit;
}

.site-nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.site-nav a {
    display: block;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--c-text);
    text-decoration: none;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
}

.site-nav a:hover,
.site-nav li.zc98f5this > a,
.site-nav li[class*="zc98f5this"] > a {
    color: var(--c-brand);
    background: rgba(4,120,87,0.06);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    background: none;
    border: 1px solid var(--c-border);
    border-radius: 6px;
    cursor: pointer;
    flex-shrink: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--c-dark);
    transition: transform 0.25s, opacity 0.25s;
}

.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.45);
    z-index: 998;
}

.menu-overlay.active { display: block; }

body.menu-open { overflow: hidden; }

/* ===== 首页 Banner ===== */
.banner {
    margin-top: var(--header-h);
    background: var(--c-dark);
    color: var(--c-white);
    padding: 56px 0 48px;
}

.banner-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    align-items: center;
}

.banner-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--c-accent);
    border: 1px solid rgba(217,119,6,0.4);
    border-radius: 20px;
    margin-bottom: 16px;
}

.banner h2 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 14px;
}

.banner-desc {
    font-size: 15px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 12px;
}

.banner-text {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 20px;
    line-height: 1.8;
}

.banner-text strong { color: rgba(255,255,255,0.9); font-weight: 600; }

.banner-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.banner-tags span {
    padding: 6px 14px;
    font-size: 13px;
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--c-border-dark);
    border-radius: 6px;
}

.banner-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.panel-item {
    padding: 20px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--c-border-dark);
    border-radius: var(--radius);
    text-align: center;
}

.panel-item strong {
    display: block;
    font-size: 26px;
    font-weight: 700;
    color: var(--c-brand-light);
    line-height: 1.2;
}

.panel-item em {
    display: block;
    font-style: normal;
    font-size: 12px;
    color: rgba(255,255,255,0.55);
    margin-top: 4px;
}

.panel-accent {
    background: rgba(4,120,87,0.2);
    border-color: rgba(5,150,105,0.35);
}

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

/* ===== 信任条 ===== */
.trust-strip {
    background: var(--c-brand);
    padding: 14px 0;
}

.trust-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--c-white);
    font-size: 13px;
    font-weight: 500;
}

.ico {
    display: inline-block;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    position: relative;
}

.ico-shield::after { content: "✓"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 10px; color: #fff; }
.ico-clock::after { content: "⏱"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 10px; }
.ico-user::after { content: "👤"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 10px; }
.ico-check::after { content: "✓"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 10px; color: #fff; }

/* ===== 通用板块 ===== */
.block {
    padding: 56px 0;
}

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

.block-dark {
    background: var(--c-dark);
    color: rgba(255,255,255,0.85);
}

.block-head {
    text-align: center;
    margin-bottom: 36px;
}

.block-head-light .block-title { color: var(--c-white); }
.block-head-light .block-label { color: var(--c-accent); }

.block-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--c-brand);
    margin-bottom: 8px;
}

.block-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 8px;
}

.block-dark .block-title { color: var(--c-white); }

.block-sub {
    font-size: 14px;
    color: var(--c-text-muted);
    max-width: 560px;
    margin: 0 auto;
}

.block-dark .block-sub { color: rgba(255,255,255,0.55); }

/* ===== 卡片行 ===== */
.card-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.info-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 24px 22px;
    transition: box-shadow 0.25s;
}

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

.card-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--c-brand);
    opacity: 0.25;
    line-height: 1;
    margin-bottom: 12px;
}

.info-card h3 {
    font-size: 17px;
    color: var(--c-dark);
    margin-bottom: 10px;
}

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

.info-card strong { color: var(--c-text); font-weight: 600; }

/* ===== 分栏布局 ===== */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.split-layout.reverse .split-text { order: 2; }
.split-layout.reverse .split-visual { order: 1; }

.split-text .block-title { text-align: left; margin-bottom: 14px; }
.split-text .block-label { text-align: left; }

.split-text p {
    font-size: 14px;
    color: var(--c-text-muted);
    margin-bottom: 18px;
    line-height: 1.8;
}

.split-text strong { color: var(--c-text); }

.split-img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    object-fit: cover;
    aspect-ratio: 4/3;
}

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

.check-list li {
    position: relative;
    padding: 8px 0 8px 22px;
    font-size: 14px;
    color: var(--c-text-muted);
    border-bottom: 1px solid var(--c-border);
}

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

.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14px;
    width: 8px;
    height: 8px;
    background: var(--c-brand);
    border-radius: 2px;
}

.check-list-light li { color: rgba(255,255,255,0.7); border-color: var(--c-border-dark); }
.check-list-light li::before { background: var(--c-accent); }

.tip-box {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-left: 3px solid var(--c-brand);
    border-radius: var(--radius);
    padding: 18px 20px;
}

.tip-box h4 {
    font-size: 15px;
    color: var(--c-dark);
    margin-bottom: 8px;
}

.tip-box p {
    font-size: 14px;
    color: var(--c-text-muted);
    margin: 0;
}

/* ===== 联系卡片 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.contact-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    text-align: center;
}

.contact-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    background: rgba(4,120,87,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.ico-qq::before { content: "Q"; font-weight: 800; color: var(--c-brand); }
.ico-link::before { content: "🔗"; font-size: 18px; }
.ico-msg::before { content: "✉"; font-size: 18px; color: var(--c-brand); }

.contact-card h3 {
    font-size: 16px;
    color: var(--c-dark);
    margin-bottom: 10px;
}

.contact-card p {
    font-size: 13px;
    color: var(--c-text-muted);
    line-height: 1.75;
    text-align: left;
}

.contact-card strong { color: var(--c-text); }

/* ===== 双栏：收费与安全 ===== */
.dual-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.dual-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--c-border-dark);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
}

.dual-card h3 {
    font-size: 17px;
    color: var(--c-white);
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--c-border-dark);
}

.dual-card > p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 16px;
    line-height: 1.75;
}

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

.price-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    border-bottom: 1px solid var(--c-border-dark);
}

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

.price-list strong { color: var(--c-accent); font-size: 14px; }

/* ===== 知识板块 ===== */
.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.know-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 22px 20px;
}

.know-card h4 {
    font-size: 15px;
    color: var(--c-dark);
    margin-bottom: 8px;
}

.know-card p {
    font-size: 13px;
    color: var(--c-text-muted);
    line-height: 1.75;
}

.know-card strong { color: var(--c-text); }

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

.article-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.25s;
}

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

.article-card-thumb {
    display: block;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--c-bg-alt);
}

.article-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.article-card-body { padding: 12px 14px; }

.article-card-title {
    font-size: 13px;
    font-weight: 600;
    line-height: 1.45;
    margin-bottom: 6px;
}

.article-card-title a {
    color: var(--c-dark);
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-title a:hover { color: var(--c-brand); }

.article-card-date {
    font-size: 11px;
    color: var(--c-text-muted);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--c-dark);
    color: rgba(255,255,255,0.7);
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--c-border-dark);
}

.footer-col h3 {
    font-size: 15px;
    color: var(--c-white);
    margin-bottom: 14px;
}

.footer-col p {
    font-size: 13px;
    line-height: 1.75;
}

.footer-col strong { color: rgba(255,255,255,0.9); }

.footer-nav {
    list-style: none;
}

.footer-nav li { margin-bottom: 8px; }

.footer-nav a {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-nav a:hover { color: var(--c-brand-light); }

.footer-bottom { text-align: center; }

.footer-brand {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 8px;
}

.footer-copy {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 4px;
}

.footer-copy a { color: rgba(255,255,255,0.6); text-decoration: none; }

/* ===== 内页/列表页布局 ===== */
.page-wrapper {
    margin-top: var(--header-h);
    padding: 32px 0 48px;
    min-height: calc(100vh - var(--header-h) - 200px);
    background: var(--c-bg);
}

.page-layout {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

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

.sidebar {
    width: 280px;
    flex-shrink: 0;
}

.page-breadcrumb {
    padding: 0 0 16px;
    font-size: 13px;
    color: var(--c-text-muted);
}

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

.breadcrumb-sep { margin: 0 6px; color: var(--c-border); }

/* 列表页 */
.list-header {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: 16px;
}

.list-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--c-dark);
}

.listbox {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 8px 24px;
}

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

.article-list-item {
    display: flex;
    gap: 18px;
    padding: 20px 0;
    border-bottom: 1px solid var(--c-border);
}

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

.list-thumb {
    flex-shrink: 0;
    width: 200px;
    display: block;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 3/2;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border);
}

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

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

.list-item-title {
    font-size: 17px;
    margin-bottom: 8px;
    line-height: 1.4;
}

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

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

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

.list-meta .meta-item { margin-right: 12px; }
.list-meta a { color: var(--c-brand); text-decoration: none; }

.list-intro {
    font-size: 13px;
    color: var(--c-text-muted);
    line-height: 1.7;
}

/* 分页 */
.pagebar {
    margin-top: 16px;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
}

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

.pagebar-flex .page-left { flex: 0 0 auto; }
.pagebar-flex .page-center { flex: 1; text-align: center; min-width: 0; }
.pagebar-flex .page-right { flex: 0 0 auto; text-align: right; }

.pagebar-flex ul {
    display: inline-flex;
    list-style: none;
    gap: 6px;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
    justify-content: center;
}

.pagebar-flex a,
.pagebar-flex span {
    display: inline-block;
    padding: 6px 14px;
    font-size: 13px;
    border: 1px solid var(--c-border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--c-text);
    transition: all 0.2s;
}

.pagebar-flex a:hover {
    background: var(--c-brand);
    color: var(--c-white);
    border-color: var(--c-brand);
}

/* 内容页 */
.article-detail {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 28px 28px 32px;
}

.article-header {
    margin-bottom: 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--c-border);
}

.article-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--c-dark);
    line-height: 1.4;
    margin-bottom: 12px;
    word-break: break-word;
}

.article-meta {
    font-size: 13px;
    color: var(--c-text-muted);
}

.article-meta .meta-item { margin-right: 16px; }
.article-meta a { color: var(--c-brand); text-decoration: none; }

.article-thumb-main {
    margin-bottom: 20px;
    text-align: center;
}

.article-thumb-main img {
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
}

.article-body {
    font-size: 15px;
    line-height: 1.85;
    color: var(--c-text);
    margin-bottom: 24px;
    word-break: break-word;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin: 12px 0;
}

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

.article-images { margin-bottom: 20px; }

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

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

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

.zc98f5meta-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding: 14px 0;
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
}

.zc98f5tagitem a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: 20px;
    font-size: 12px;
    color: var(--c-brand);
    text-decoration: none;
}

.zc98f5tagitem a:hover {
    background: rgba(4,120,87,0.08);
}

.article-nav-links {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    padding: 16px 0;
    border-top: 1px solid var(--c-border);
}

.article-nav-prev,
.article-nav-next {
    flex: 1;
    min-width: 0;
    font-size: 13px;
}

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

.article-nav-links a {
    color: var(--c-dark);
    text-decoration: none;
    word-break: break-all;
}

.article-nav-links a:hover { color: var(--c-brand); }

.related-articles { margin-top: 8px; }

.related-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 16px;
    padding-left: 12px;
    border-left: 3px solid var(--c-brand);
}

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

.related-item {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--c-border);
}

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

.related-thumb {
    flex-shrink: 0;
    width: 110px;
    display: block;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 3/2;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border);
}

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

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

.related-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-dark);
    text-decoration: none;
}

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

.related-info p {
    font-size: 12px;
    color: var(--c-text-muted);
    margin-top: 6px;
    line-height: 1.6;
}

.zc98f5diyfield { margin-bottom: 16px; }
.clear { clear: both; }

/* 侧栏 */
.sidebar-block {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.sidebar-title {
    font-size: 14px;
    font-weight: 700;
    padding: 14px 18px;
    background: var(--c-brand);
    color: var(--c-white);
    margin: 0;
}

.sidebar-list {
    list-style: none;
    padding: 6px 0;
    max-height: 520px;
    overflow-y: auto;
}

.sidebar-item { border-bottom: 1px solid var(--c-border); }
.sidebar-item:last-child { border-bottom: none; }

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    text-decoration: none;
    transition: background 0.2s;
}

.sidebar-link:hover { background: var(--c-bg); }

.sidebar-thumb {
    flex-shrink: 0;
    width: 72px;
    height: 54px;
    overflow: hidden;
    border-radius: 4px;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border);
}

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

.sidebar-text {
    flex: 1;
    min-width: 0;
    font-size: 12px;
    color: var(--c-text);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-link:hover .sidebar-text { color: var(--c-brand); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .banner-grid { grid-template-columns: 1fr; }
    .banner-panel { max-width: 400px; }
    .card-row { grid-template-columns: 1fr; }
    .split-layout { grid-template-columns: 1fr; gap: 28px; }
    .split-layout.reverse .split-text,
    .split-layout.reverse .split-visual { order: unset; }
    .contact-grid { grid-template-columns: 1fr; }
    .dual-grid { grid-template-columns: 1fr; }
    .knowledge-grid { grid-template-columns: 1fr; }
    .article-grid-home { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .sidebar { width: 240px; }
}

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

    .menu-toggle { display: flex; }

    .site-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-h));
        background: var(--c-white);
        padding: 12px 16px;
        border-top: 1px solid var(--c-border);
        transform: translateX(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s, opacity 0.3s;
        overflow-y: auto;
        z-index: 999;
    }

    .site-nav.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

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

    .site-nav li { border-bottom: 1px solid var(--c-border); }

    .site-nav a {
        padding: 14px 12px;
        border-radius: 0;
        white-space: normal;
    }

    .site-logo { max-width: calc(100vw - 60px); font-size: 16px; }

    .banner { padding: 36px 0 32px; }
    .banner h2 { font-size: 24px; }
    .banner-panel { max-width: 100%; }

    .trust-list { justify-content: center; }
    .trust-item { flex: 0 0 calc(50% - 6px); justify-content: center; }

    .block { padding: 40px 0; }
    .block-title { font-size: 22px; }

    .page-layout { flex-direction: column; }
    .sidebar { width: 100%; }

    .article-list-item { flex-direction: column; }
    .list-thumb { width: 100%; }

    .article-detail { padding: 20px 16px; }
    .article-title { font-size: 20px; }

    .article-nav-links { flex-direction: column; }
    .article-nav-next { text-align: left; }

    .related-item { flex-direction: column; }
    .related-thumb { width: 100%; }

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

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

    .pagebar-flex { flex-direction: column; align-items: center; }
    .pagebar-flex .page-left,
    .pagebar-flex .page-center,
    .pagebar-flex .page-right { text-align: center; width: 100%; }

    .page-wrapper { padding: 24px 0 36px; }
}

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

    .banner h2 { font-size: 20px; }
    .banner-tags span { font-size: 12px; padding: 5px 10px; }
    .panel-item strong { font-size: 22px; }

    .trust-item { flex: 0 0 100%; }

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

    .list-header { padding: 16px; }
    .listbox { padding: 4px 16px; }

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