/* roulang page: index */
:root {
    --color-primary: #0E7C72;
    --color-primary-dark: #0A5F57;
    --color-primary-light: #E4F0EE;
    --color-secondary: #C48B2C;
    --color-secondary-dark: #A06E1F;
    --color-secondary-light: #FCF6EC;
    --bg-body: #F6F5F1;
    --bg-card: #FFFFFF;
    --bg-deep: #0A4A44;
    --text-body: #1F2A37;
    --text-muted: #6B7280;
    --text-light: #9CA3AF;
    --border-color: #E5E3DD;
    --radius-card: 8px;
    --radius-btn: 6px;
    --radius-pill: 999px;
    --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-hover: 0 2px 6px rgba(0,0,0,0.08), 0 8px 20px rgba(0,0,0,0.07);
    --space-section: 76px;
    --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
    --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-cn);
    background: var(--bg-body);
    color: var(--text-body);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease; }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; display: block; border: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.4; color: var(--text-body); margin: 0 0 12px 0; }
p { margin: 0 0 14px 0; }
ul, ol { list-style: none; margin: 0; padding: 0; }

.grid-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }
section { padding: var(--space-section) 0; position: relative; }

/* ===== 双行导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    border-bottom: 1px solid var(--border-color);
}
.site-header .grid-container { padding: 0 24px; }
.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0 12px;
    border-bottom: 1px solid rgba(229,227,221,0.6);
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--color-primary);
    white-space: nowrap;
}
.brand-logo i {
    font-size: 24px;
    color: var(--color-primary);
}
.brand-logo:hover { color: var(--color-primary-dark); }
.header-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 22px;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-btn);
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    background: transparent;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.header-contact-btn:hover {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(14,124,114,0.25);
}
.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    min-height: 52px;
}
.header-nav::-webkit-scrollbar { display: none; }
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 14px 22px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-body);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    position: relative;
    transition: all 0.2s ease;
}
.nav-link:hover { color: var(--color-primary); background: rgba(246,245,241,0.7); }
.nav-link.active {
    color: var(--color-primary);
    font-weight: 600;
    border-bottom-color: var(--color-primary);
}

/* ===== Hero ===== */
.hero {
    padding: 76px 0 64px;
    background: var(--bg-body);
    background-image: radial-gradient(circle, rgba(14,124,114,0.07) 1px, transparent 1px);
    background-size: 26px 26px;
    border-bottom: 1px solid rgba(229,227,221,0.5);
}
.hero-inner {
    display: flex;
    align-items: center;
    gap: 56px;
    min-height: 360px;
}
.hero-content { flex: 1.1; }
.hero-visual { flex: 1; }
.hero-tag {
    display: inline-block;
    padding: 4px 16px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}
.hero-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text-body);
    letter-spacing: 0.5px;
}
.hero-title .accent { color: var(--color-primary); }
.hero-subtitle {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 520px;
    line-height: 1.7;
}
.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 32px;
    background: var(--color-primary);
    color: #ffffff !important;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    border: 1px solid var(--color-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px rgba(14,124,114,0.15);
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(14,124,114,0.25); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible, .btn-secondary:focus-visible { outline: 2px solid var(--color-secondary); outline-offset: 2px; }
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 32px;
    background: transparent;
    color: var(--color-primary) !important;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn-secondary:hover { background: rgba(14,124,114,0.06); border-color: var(--color-primary-dark); }
.hero-img-wrap {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    position: relative;
    background: #e9f0ee;
}
.hero-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(14,124,114,0.06);
    border-radius: 12px;
    pointer-events: none;
}
.hero-img-wrap img { width: 100%; height: 320px; object-fit: cover; }

/* ===== 数据指标 ===== */
.metrics {
    padding: 48px 0;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
}
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.metric-num {
    font-family: var(--font-num);
    font-size: 34px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}
.metric-label { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* ===== 最新资讯 ===== */
.news-section { background: var(--bg-body); }
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 16px;
}
.section-title {
    font-size: 30px;
    font-weight: 800;
    margin: 0;
    position: relative;
    padding-left: 20px;
    line-height: 1.3;
}
.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    border-radius: 2px;
    background: var(--color-primary);
}
.section-more {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}
.section-more:hover { color: var(--color-primary-dark); gap: 10px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
    background: var(--bg-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-card-img { width: 100%; height: 180px; object-fit: cover; display: block; }
.news-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.45;
    color: var(--text-body);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s ease;
}
.news-card:hover .news-card-title { color: var(--color-primary); }
.news-card-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
}
.news-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid rgba(229,227,221,0.6);
}
.badge-category {
    display: inline-block;
    padding: 3px 12px;
    background: var(--color-secondary-light);
    color: var(--color-secondary-dark);
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    border: 1px solid rgba(196,139,44,0.25);
}
.news-date {
    font-size: 13px;
    color: var(--text-light);
    font-variant-numeric: tabular-nums;
}
.empty-state {
    grid-column: 1 / -1;
    padding: 60px 24px;
    text-align: center;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-card);
    background: rgba(255,255,255,0.6);
    color: var(--text-muted);
    font-size: 15px;
}
.empty-state i { font-size: 32px; display: block; margin-bottom: 12px; color: var(--text-light); }

/* ===== 精选推荐 ===== */
.featured-section { background: #ffffff; }
.featured-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.featured-card {
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    background: var(--bg-card);
    transition: all 0.2s ease;
    display: flex;
}
.featured-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.featured-card-img-wrap { position: relative; overflow: hidden; width: 100%; }
.featured-card-img-wrap img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.3s ease; }
.featured-card:hover .featured-card-img-wrap img { transform: scale(1.02); }
.featured-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.featured-card-body { padding: 20px; }
.featured-card-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.featured-card-summary { font-size: 13px; color: var(--text-muted); line-height: 1.65; }

/* ===== 评价区 ===== */
.testimonial-section {
    background: rgba(14,124,114,0.05);
    border-top: 1px solid rgba(14,124,114,0.08);
    border-bottom: 1px solid rgba(14,124,114,0.08);
}
.testimonial-head { text-align: center; margin-bottom: 44px; }
.testimonial-head .section-title {
    padding-left: 0;
    display: inline-block;
}
.testimonial-head .section-title::before { display: none; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.testimonial-card {
    background: #fff;
    border-radius: var(--radius-card);
    padding: 28px;
    box-shadow: var(--shadow-card);
    transition: all 0.2s ease;
}
.testimonial-card:hover { box-shadow: var(--shadow-hover); }
.testimonial-stars { color: var(--color-secondary); font-size: 15px; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-text {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: normal;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    flex-shrink: 0;
}
.testimonial-name { font-size: 14px; font-weight: 600; color: var(--text-body); }
.testimonial-role { font-size: 12px; color: var(--text-light); }

/* ===== 保障条 ===== */
.guarantee-section { background: var(--bg-body); padding: 56px 0; }
.guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.guarantee-item { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 24px 16px; }
.guarantee-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 20px;
    margin-bottom: 16px;
}
.guarantee-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; color: var(--text-body); }
.guarantee-desc { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-section { background: #ffffff; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
    background: var(--bg-body);
    border-radius: var(--radius-card);
    margin-bottom: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-item:hover { border-color: rgba(14,124,114,0.25); }
.faq-item.open { box-shadow: var(--shadow-card); border-color: rgba(14,124,114,0.35); }
.faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-body);
    transition: background 0.2s ease;
}
.faq-question:hover { background: rgba(255,255,255,0.7); }
.faq-q {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1.5px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    flex-shrink: 0;
}
.faq-question-text { flex: 1; }
.faq-toggle {
    font-size: 14px;
    color: var(--text-light);
    transition: transform 0.25s ease;
    flex-shrink: 0;
}
.faq-item.open .faq-toggle { transform: rotate(180deg); color: var(--color-primary); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s ease;
    padding: 0 24px;
}
.faq-item.open .faq-answer {
    max-height: 400px;
    padding: 0 24px 22px 68px;
}
.faq-answer p { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 0; }

/* ===== CTA ===== */
.cta-section {
    padding: 64px 0;
    background: var(--bg-deep);
    background-image: radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 20px 20px;
    text-align: center;
}
.cta-inner { max-width: 760px; margin: 0 auto; padding: 24px; }
.cta-title { font-size: 30px; font-weight: 800; color: #ffffff; margin-bottom: 12px; }
.cta-subtitle { font-size: 16px; color: rgba(255,255,255,0.75); margin-bottom: 32px; }
.btn-amber {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--color-secondary);
    color: #ffffff !important;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 700;
    border: 1px solid var(--color-secondary);
    transition: all 0.2s ease;
    box-shadow: 0 3px 10px rgba(196,139,44,0.3);
}
.btn-amber:hover { background: var(--color-secondary-dark); border-color: var(--color-secondary-dark); transform: translateY(-1px); box-shadow: 0 5px 16px rgba(196,139,44,0.4); }

/* ===== 页脚 ===== */
.site-footer { background: #f0efe9; border-top: 1px solid var(--border-color); }
.footer-main {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1fr 0.9fr;
    gap: 40px;
    padding: 56px 0 44px;
}
.footer-brand-name {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.footer-brand-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; max-width: 300px; }
.footer-col-title { font-size: 15px; font-weight: 700; color: var(--text-body); margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--text-muted); transition: all 0.2s ease; }
.footer-links a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-muted);
}
.footer-contact-list i { color: var(--color-primary); margin-top: 4px; width: 16px; text-align: center; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 17px;
    transition: all 0.2s ease;
}
.footer-social a:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); transform: translateY(-2px); }
.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 18px 0;
    background: #efede8;
}
.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.footer-copy { font-size: 13px; color: var(--text-muted); }
.footer-beian { font-size: 13px; color: var(--text-light); }

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    :root { --space-section: 56px; }
    .hero-title { font-size: 32px; }
    .featured-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-main { grid-template-columns: 1fr 1fr; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-inner { gap: 32px; }
}

@media screen and (max-width: 768px) {
    .hero-inner { flex-direction: column; }
    .hero-visual { order: -1; max-width: 100%; }
    .hero-img-wrap img { height: 220px; }
    .btn-group .btn-primary, .btn-group .btn-secondary { flex: 1; justify-content: center; }
    .news-grid { grid-template-columns: 1fr; }
    .featured-grid { grid-template-columns: 1fr; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .footer-main { grid-template-columns: 1fr; gap: 28px; }
    .header-top { padding: 10px 0; }
    .brand-logo { font-size: 18px; }
    .header-contact-btn { padding: 6px 16px; font-size: 13px; }
    .nav-link { padding: 12px 16px; font-size: 14px; }
    .section-title { font-size: 24px; }
    .metric-num { font-size: 28px; }
    .guarantee-grid { grid-template-columns: 1fr; }
    .cta-title { font-size: 24px; }
    .footer-bottom-inner { flex-direction: column; text-align: center; }
    .faq-item.open .faq-answer { padding-left: 24px; }
    .hero { padding: 40px 0; }
}

@media screen and (max-width: 520px) {
    :root { --space-section: 40px; }
    .grid-container { padding: 0 16px; }
    .hero-title { font-size: 26px; }
    .btn-primary, .btn-secondary { width: 100%; }
    .metrics-grid { grid-template-columns: 1fr 1fr; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
    .section-more { align-self: flex-end; }
}

/* 焦点可访问性 */
a:focus-visible, button:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* roulang page: article */
:root {
  --color-primary: #0E7C72;
  --color-primary-dark: #0A5E57;
  --color-secondary: #D97706;
  --color-secondary-light: #FEF3E2;
  --bg-body: #F6F5F1;
  --bg-card: #FFFFFF;
  --bg-soft: #EDF5F3;
  --text-body: #1F2A37;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;
  --border-color: #E5E3DD;
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 2px 6px rgba(0,0,0,0.08), 0 8px 20px rgba(0,0,0,0.07);
  --space-section: 72px;
  --container-max: 1200px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

.grid-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-color);
  padding: 0;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid #F0EFEA;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-body);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: opacity .2s ease;
}
.brand-logo:hover { color: var(--color-primary); }
.brand-logo i {
  color: var(--color-primary);
  font-size: 24px;
}

.header-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-btn);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  transition: all .2s ease;
}
.header-contact-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.header-nav::-webkit-scrollbar { display: none; }

.nav-link {
  display: inline-block;
  padding: 12px 22px;
  font-size: 15px;
  color: var(--text-body);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease;
}
.nav-link:hover {
  color: var(--color-primary);
  border-bottom-color: rgba(14,124,114,.35);
}
.nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

/* ========== Breadcrumb ========== */
.breadcrumb-wrap {
  padding-top: 28px;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color .2s ease;
}
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .breadcrumb-sep {
  color: var(--text-light);
  font-size: 12px;
}
.breadcrumb .breadcrumb-current {
  color: var(--text-body);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========== Article Layout ========== */
.article-layout {
  padding: 28px 0 72px;
}
.article-container {
  max-width: 860px;
  margin: 0 auto;
}

.article-heading {
  margin-top: 22px;
}
.article-heading h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-body);
  letter-spacing: 0.2px;
  margin-bottom: 14px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.article-meta .meta-dot {
  color: var(--text-light);
  font-size: 12px;
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta .meta-item i {
  font-size: 12px;
  color: var(--text-light);
}

.article-cover {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 28px;
  box-shadow: var(--shadow-card);
}
.article-cover img {
  width: 100%;
  aspect-ratio: 16/8;
  object-fit: cover;
}

/* ========== Article Content ========== */
.article-content {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-body);
  word-wrap: break-word;
}
.article-content p {
  margin-bottom: 1.35em;
}
.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin-top: 1.6em;
  margin-bottom: 0.7em;
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  margin-top: 1.4em;
  margin-bottom: 0.6em;
}
.article-content ul,
.article-content ol {
  margin: 1em 0 1.2em;
  padding-left: 1.5em;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li {
  margin-bottom: 0.5em;
  padding-left: 4px;
}
.article-content blockquote {
  margin: 1.5em 0;
  padding: 14px 20px;
  background: var(--bg-soft);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  color: var(--text-body);
  font-style: normal;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content img {
  width: 100%;
  border-radius: var(--radius-card);
  margin: 1.5em 0;
}
.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--color-primary-dark);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 15px;
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  text-align: left;
}
.article-content table th {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--text-body);
}
.article-content code {
  background: #F0EFEA;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: "SFMono-Regular", Consolas, monospace;
}
.article-content pre {
  background: #1F2A37;
  color: #E5E7EB;
  padding: 18px 20px;
  border-radius: var(--radius-card);
  overflow-x: auto;
  margin: 1.5em 0;
}
.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.article-empty {
  text-align: center;
  padding: 80px 20px;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-card);
}
.article-empty .empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--color-primary);
  font-size: 24px;
}
.article-empty p {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all .2s ease;
  min-height: 44px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  box-shadow: var(--shadow-hover);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-hover);
}
.btn-secondary {
  background: var(--color-secondary);
  color: #fff;
}
.btn-secondary:hover {
  background: #B96407;
  color: #fff;
}

/* ========== Article Tags ========== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-muted);
  transition: all .2s ease;
}
.tag-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.tag-pill i {
  font-size: 11px;
  color: var(--color-secondary);
}

/* ========== Article Back ========== */
.article-back {
  margin-top: 30px;
  text-align: center;
}

/* ========== Related ========== */
.related-section {
  margin-top: 64px;
}
.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.related-head h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-body);
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
  line-height: 1.3;
}
.related-more {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
}
.related-more:hover { color: var(--color-primary-dark); }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.related-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.related-card:hover .card-img img {
  transform: scale(1.02);
}
.related-card .card-body {
  padding: 16px 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-body);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card h3 a {
  color: var(--text-body);
  transition: color .2s ease;
}
.related-card h3 a:hover { color: var(--color-primary); }
.related-card .card-summary {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.related-card .card-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-light);
}
.related-card .card-foot i {
  font-size: 11px;
}

/* ========== FAQ ========== */
.faq-section {
  margin-top: 64px;
  padding: 48px 0;
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
}
.faq-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}
.faq-title {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  color: var(--text-body);
  margin-bottom: 12px;
}
.faq-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.faq-accordion {
  border: none;
  background: transparent;
}
.faq-accordion .accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-accordion .accordion-item:hover {
  border-color: rgba(14,124,114,.4);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.faq-accordion .accordion-title {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-body);
  border: none;
  background: transparent;
  line-height: 1.5;
}
.faq-accordion .accordion-title:hover {
  background: transparent;
  color: var(--color-primary);
}
.faq-accordion .accordion-title::before {
  content: "Q";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  background: var(--bg-soft);
}
.faq-accordion .accordion-title::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 12px;
  color: var(--text-light);
  position: absolute;
  right: 18px;
  transition: transform .3s ease;
}
.faq-accordion .accordion-item.is-active > .accordion-title::after {
  transform: rotate(180deg);
}
.faq-accordion .accordion-title:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  border-radius: var(--radius-card);
}
.faq-accordion .accordion-content {
  border: none;
  background: transparent;
  padding: 0 20px 18px 58px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}
.faq-accordion .accordion-content::before {
  content: "A";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-secondary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
  margin-right: 4px;
}

/* ========== Footer ========== */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border-color);
  margin-top: 32px;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1fr;
  gap: 32px;
  padding: 52px 0 32px;
}
.footer-brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-body);
  margin-bottom: 14px;
}
.footer-brand-name i {
  color: var(--color-primary);
  font-size: 22px;
}
.footer-brand-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 320px;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-body);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col-title::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}
.footer-links li {
  margin-bottom: 9px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.footer-contact-list li i {
  width: 18px;
  color: var(--color-primary);
  font-size: 14px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--color-primary);
  font-size: 16px;
  transition: all .2s ease;
}
.footer-social a:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}
.footer-bottom {
  background: #EFEDE8;
  border-top: 1px solid var(--border-color);
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-beian {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== Responsive ========== */
@media screen and (max-width: 1024px) {
  :root { --space-section: 56px; }
  .footer-main {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer-main > div:first-child {
    grid-column: 1 / -1;
  }
}

@media screen and (max-width: 768px) {
  :root { --space-section: 44px; }
  .header-top {
    padding: 10px 0;
  }
  .brand-logo {
    font-size: 18px;
  }
  .brand-logo i {
    font-size: 20px;
  }
  .header-contact-btn span {
    display: none;
  }
  .header-contact-btn {
    padding: 8px 12px;
  }
  .nav-link {
    padding: 10px 16px;
    font-size: 14px;
  }
  .article-heading h1 {
    font-size: 24px;
  }
  .related-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 40px 0 24px;
  }
  .faq-accordion .accordion-content {
    padding-left: 20px;
  }
  .faq-accordion .accordion-title {
    font-size: 14px;
    padding: 14px 42px 14px 16px;
  }
  .faq-accordion .accordion-title::before {
    width: 22px;
    height: 22px;
    font-size: 11px;
  }
}

@media screen and (max-width: 520px) {
  .grid-container {
    padding: 0 16px;
  }
  :root { --space-section: 36px; }
  .breadcrumb-wrap {
    padding-top: 20px;
  }
  .breadcrumb .breadcrumb-current {
    max-width: 200px;
  }
  .article-heading h1 {
    font-size: 21px;
    line-height: 1.45;
  }
  .article-meta {
    font-size: 12px;
    gap: 4px;
  }
  .article-content {
    font-size: 15px;
    line-height: 1.8;
  }
  .article-content h2 {
    font-size: 19px;
  }
  .article-content h3 {
    font-size: 17px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .related-head h2 {
    font-size: 19px;
  }
  .related-card h3 {
    font-size: 15px;
  }
  .faq-section {
    padding: 32px 0;
  }
  .faq-title {
    font-size: 20px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 32px 0 16px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    gap: 6px;
    text-align: center;
    padding: 14px 0;
  }
  .btn {
    width: 100%;
    padding: 12px 20px;
  }
  .article-back .btn {
    width: auto;
    min-width: 160px;
  }
}

@media screen and (max-width: 380px) {
  .brand-logo {
    font-size: 16px;
  }
  .nav-link {
    padding: 10px 12px;
    font-size: 13px;
  }
  .article-heading h1 {
    font-size: 19px;
  }
  .article-meta .meta-item:nth-child(5) {
    display: none;
  }
}

/* ========== Accessibility ========== */
a:focus-visible,
button:focus-visible,
.accordion-title:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* roulang page: category1 */
:root {
  --color-primary: #0E7C72;
  --color-primary-dark: #0A5F57;
  --color-secondary: #C48B2C;
  --bg-body: #F6F5F1;
  --bg-card: #FFFFFF;
  --text-body: #1F2A37;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;
  --border-color: #E5E3DD;
  --radius-card: 8px;
  --radius-btn: 6px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 2px 6px rgba(0,0,0,0.08), 0 8px 20px rgba(0,0,0,0.07);
  --space-section: 72px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--color-primary-dark);
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
}
.grid-container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ============ Header ============ */
.site-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.5px;
}
.brand-logo i {
  font-size: 26px;
  color: var(--color-primary);
}
.header-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 10px 20px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}
.header-contact-btn:hover {
  background: var(--color-primary);
  color: #fff;
}
.header-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 0;
}
.header-nav::-webkit-scrollbar {
  display: none;
}
.nav-link {
  padding: 12px 18px;
  font-size: 15px;
  color: var(--text-body);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: all 0.2s ease;
  position: relative;
  top: 1px;
  border-radius: 6px 6px 0 0;
}
.nav-link:hover {
  color: var(--color-primary);
  background: rgba(14,124,114,0.05);
}
.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: var(--color-primary);
}

/* ============ Page Head ============ */
.page-head {
  background: var(--bg-body);
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--border-color);
  background-image: radial-gradient(rgba(14,124,114,0.04) 1px, transparent 1px);
  background-size: 22px 22px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-muted);
}
.breadcrumb a:hover {
  color: var(--color-primary);
}
.breadcrumb i {
  font-size: 10px;
  color: var(--text-light);
}
.breadcrumb .current {
  color: var(--text-body);
  font-weight: 500;
}
.page-head h1 {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-body);
  line-height: 1.3;
  margin-bottom: 14px;
}
.page-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 800px;
}

/* ============ Section 基础 ============ */
.section-block {
  padding: var(--space-section) 0;
}
.section-block.tight {
  padding: 48px 0;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 20px;
}
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-body);
  line-height: 1.3;
  padding-left: 16px;
  border-left: 4px solid var(--color-primary);
}
.section-tip {
  font-size: 14px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ============ Feature Grid ============ */
.feature-grid {
  margin: 0 -12px;
  display: flex;
  flex-wrap: wrap;
}
.feature-col {
  width: 25%;
  padding: 0 12px;
  margin-bottom: 24px;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.feature-card .card-img {
  position: relative;
  overflow: hidden;
  height: 180px;
  background: #ecece8;
}
.feature-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.feature-card:hover .card-img img {
  transform: scale(1.03);
}
.feature-card .card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 12px;
  border-radius: 999px;
  letter-spacing: 0.3px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.feature-card .card-body {
  padding: 20px 20px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-body);
  line-height: 1.4;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

/* ============ Article List ============ */
.article-list-block {
  background: var(--bg-card);
  padding: var(--space-section) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.article-list {
  max-width: 960px;
}
.article-list-item {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.2s ease;
}
.article-list-item:last-child {
  border-bottom: none;
}
.article-list-item:hover .list-title {
  color: var(--color-primary);
}
.list-thumb {
  width: 200px;
  height: 130px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  background: #ecece8;
}
.list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.article-list-item:hover .list-thumb img {
  transform: scale(1.02);
}
.list-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.list-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.badge {
  display: inline-block;
  background: rgba(196,139,44,0.12);
  color: var(--color-secondary);
  font-size: 12px;
  font-weight: 500;
  padding: 2px 12px;
  border-radius: 999px;
  border: 1px solid rgba(196,139,44,0.3);
}
.list-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-body);
  line-height: 1.4;
  margin-bottom: 6px;
  transition: color 0.2s ease;
  display: block;
}
.list-summary {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}
.list-time {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

/* ============ FAQ ============ */
.faq-block {
  padding: var(--space-section) 0;
}
.faq-accordion {
  list-style: none;
  background: transparent;
  border: none;
  max-width: 860px;
  margin: 0 auto;
}
.faq-accordion .accordion-item {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: box-shadow 0.2s ease;
  overflow: hidden;
}
.faq-accordion .accordion-item:hover {
  box-shadow: var(--shadow-hover);
}
.faq-accordion .accordion-item.is-active {
  box-shadow: var(--shadow-hover);
}
.faq-accordion .accordion-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-body);
  padding: 20px 24px;
  border-bottom: 1px solid transparent;
  background: transparent;
  outline: none;
}
.faq-accordion .accordion-title::before {
  content: "Q";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--color-primary);
  border-radius: 50%;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.faq-accordion .accordion-title::after {
  content: "+";
  margin-left: auto;
  font-size: 22px;
  color: var(--text-muted);
  font-weight: 400;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-accordion .accordion-item.is-active > .accordion-title::after {
  content: "−";
  transform: rotate(180deg);
}
.faq-accordion .accordion-item.is-active > .accordion-title {
  border-bottom-color: var(--border-color);
}
.faq-accordion .accordion-content {
  background: var(--bg-card);
  border: none;
  padding: 4px 24px 20px 64px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
}
.faq-accordion .accordion-content::before {
  content: "A";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--color-primary);
  border-radius: 50%;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  margin-right: 10px;
  vertical-align: middle;
}

/* ============ CTA ============ */
.cta-block {
  padding: 56px 0 80px;
}
.cta-inner {
  background: var(--color-primary-dark);
  border-radius: 12px;
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.cta-inner h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  letter-spacing: 1px;
}
.cta-inner p {
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto 28px;
  position: relative;
}
.cta-btn {
  display: inline-block;
  background: var(--color-secondary);
  color: #fff;
  border: none;
  padding: 14px 36px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease;
  position: relative;
  letter-spacing: 0.5px;
}
.cta-btn:hover {
  background: #b0792a;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-body);
  border-top: 1px solid var(--border-color);
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 56px 0 44px;
}
.footer-brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.footer-brand-name i {
  font-size: 24px;
}
.footer-brand-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 300px;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 16px;
  padding-left: 10px;
  border-left: 3px solid var(--color-primary);
}
.footer-links {
  list-style: none;
  padding: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--color-primary);
}
.footer-contact-list {
  list-style: none;
  padding: 0;
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.footer-contact-list i {
  color: var(--color-primary);
  width: 16px;
  text-align: center;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 16px;
  transition: all 0.2s ease;
}
.footer-social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.footer-bottom {
  background: #EFEDE8;
  border-top: 1px solid var(--border-color);
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  :root {
    --space-section: 56px;
  }
  .feature-col {
    width: 50%;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .header-nav {
    gap: 4px;
  }
  .nav-link {
    padding: 10px 14px;
    font-size: 14px;
  }
}
@media (max-width: 768px) {
  .header-top {
    flex-wrap: wrap;
    gap: 12px;
  }
  .page-head {
    padding: 36px 0 28px;
  }
  .page-head h1 {
    font-size: 28px;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 24px;
  }
  .section-title {
    font-size: 22px;
  }
  .article-list-item {
    flex-direction: column;
    gap: 14px;
    padding: 20px 0;
  }
  .list-thumb {
    width: 100%;
    height: 180px;
  }
  .cta-inner {
    padding: 40px 24px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 0 32px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    gap: 6px;
  }
}
@media (max-width: 640px) {
  :root {
    --space-section: 40px;
  }
  .feature-col {
    width: 100%;
  }
  .feature-card .card-img {
    height: 200px;
  }
  .nav-link {
    padding: 10px 12px;
    font-size: 13px;
  }
  .brand-logo {
    font-size: 17px;
  }
  .header-contact-btn {
    padding: 8px 14px;
    font-size: 13px;
  }
  .page-desc {
    font-size: 15px;
  }
  .faq-accordion .accordion-title {
    font-size: 15px;
    padding: 16px 18px;
  }
  .faq-accordion .accordion-content {
    padding: 2px 18px 16px 52px;
    font-size: 14px;
  }
  .cta-btn {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
  }
}

/* roulang page: category2 */
:root {
            --color-primary: #0E7C72;
            --color-primary-dark: #0A5F57;
            --color-secondary: #C48B2C;
            --color-secondary-light: #F3EAD9;
            --bg-body: #F6F5F1;
            --bg-card: #FFFFFF;
            --bg-deep: #0B3B37;
            --text-body: #1F2A37;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-color: #E5E3DD;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 2px 6px rgba(0, 0, 0, 0.08), 0 8px 20px rgba(0, 0, 0, 0.07);
            --space-section: 72px;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-cn);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .2s ease, border-color .2s ease;
        }

        a:hover {
            color: var(--color-primary-dark);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }

        .site-header .grid-container {
            display: flex;
            flex-direction: column;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 22px;
            color: var(--text-body);
            letter-spacing: .5px;
        }

        .brand-logo i {
            color: var(--color-primary);
            font-size: 24px;
        }

        .brand-logo span {
            white-space: nowrap;
        }

        .header-contact-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-btn);
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            background: transparent;
            transition: background .2s ease, color .2s ease, box-shadow .2s ease;
        }

        .header-contact-btn:hover {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-hover);
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            border-top: 1px solid var(--border-color);
            padding: 6px 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .header-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-btn);
            transition: color .2s ease, background .2s ease;
            white-space: nowrap;
        }

        .nav-link i {
            color: var(--text-light);
            margin-right: 6px;
            font-size: 14px;
            transition: color .2s ease;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: #F1F5F4;
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -1px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }

        .category-page-head {
            padding: 48px 0 36px;
            background: var(--bg-body);
            border-bottom: 1px solid var(--border-color);
        }

        .category-breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .category-breadcrumb i {
            font-size: 12px;
            color: var(--text-light);
        }

        .category-breadcrumb a {
            color: var(--color-primary);
            font-weight: 500;
        }

        .category-page-head h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text-body);
            position: relative;
            padding-left: 18px;
        }

        .category-page-head h1::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 4px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .category-description {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 860px;
            margin-bottom: 0;
        }

        .section-block {
            padding: var(--space-section) 0;
        }

        .section-block + .section-block {
            padding-top: 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0;
            color: var(--text-body);
            position: relative;
            padding-left: 18px;
        }

        .section-head h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 5px;
            bottom: 5px;
            width: 4px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            padding: 8px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            background: var(--bg-card);
            transition: all .2s ease;
        }

        .section-more:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
            color: var(--color-primary-dark);
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-list-item {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: box-shadow .2s ease, transform .2s ease;
            align-items: center;
        }

        .article-list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .article-list-thumb {
            flex: 0 0 180px;
            width: 180px;
            height: 120px;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: #EDEDE7;
        }

        .article-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

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

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

        .article-list-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 6px;
        }

        .badge-primary {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-primary);
            background: rgba(14, 124, 114, 0.08);
            border: 1px solid rgba(14, 124, 114, 0.25);
            border-radius: var(--radius-pill);
        }

        .badge-secondary {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-secondary);
            background: rgba(196, 139, 44, 0.08);
            border: 1px solid rgba(196, 139, 44, 0.25);
            border-radius: var(--radius-pill);
        }

        .article-list-meta span {
            font-size: 13px;
            color: var(--text-light);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-list-meta span i {
            font-size: 12px;
        }

        .article-list-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            margin: 0 0 6px;
        }

        .article-list-body h3 a {
            color: var(--text-body);
            transition: color .2s ease;
        }

        .article-list-body h3 a:hover {
            color: var(--color-primary);
        }

        .article-list-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .stats-strip {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 24px;
        }

        .stats-strip .grid-x {
            align-items: stretch;
        }

        .stat-item {
            text-align: center;
            padding: 16px 12px;
            border-right: 1px solid var(--border-color);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-number {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            font-family: var(--font-en);
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.5;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .2s ease, transform .2s ease;
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .topic-card-img {
            position: relative;
            height: 160px;
            overflow: hidden;
            background: #EDEDE7;
        }

        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .topic-card:hover .topic-card-img img {
            transform: scale(1.03);
        }

        .topic-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: .5px;
        }

        .topic-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .topic-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            margin: 0;
        }

        .topic-card-body h3 a {
            color: var(--text-body);
        }

        .topic-card-body h3 a:hover {
            color: var(--color-primary);
        }

        .topic-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .topic-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-top: 4px;
        }

        .topic-card-meta i {
            font-size: 12px;
            margin-right: 4px;
        }

        .faq-section {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            padding: 36px;
            box-shadow: var(--shadow-card);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 22px 0;
        }

        .faq-item:first-child {
            padding-top: 0;
        }

        .faq-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .faq-question {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            cursor: pointer;
            user-select: none;
        }

        .faq-q-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary);
            font-family: var(--font-en);
        }

        .faq-question h4 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin: 3px 0 0;
            color: var(--text-body);
            flex: 1;
        }

        .faq-answer {
            display: none;
            margin-top: 12px;
            padding-left: 42px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-muted);
        }

        .faq-answer.show {
            display: block;
            animation: fadeIn .25s ease;
        }

        .faq-a-icon {
            font-weight: 700;
            color: var(--color-secondary);
            font-family: var(--font-en);
            margin-right: 6px;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-4px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .faq-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            padding: 10px 20px;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-btn);
            transition: all .2s ease;
        }

        .faq-more-link:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .cta-block {
            background: var(--bg-deep);
            border-radius: var(--radius-card);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 18px 18px;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 10px;
            line-height: 1.3;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            margin: 0 0 28px;
            line-height: 1.6;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-secondary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        .cta-btn:hover {
            background: #D97706;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
            color: #fff;
        }

        .cta-btn:focus-visible {
            outline: 3px solid rgba(196, 139, 44, 0.4);
            outline-offset: 2px;
        }

        .site-footer {
            background: #EFEDE8;
            margin-top: 40px;
        }

        .site-footer .grid-container {
            padding-top: 40px;
            padding-bottom: 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.1fr 0.8fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border-color);
        }

        .footer-brand-name {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-body);
            margin-bottom: 12px;
        }

        .footer-brand-name i {
            color: var(--color-primary);
            font-size: 22px;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-body);
            margin: 0 0 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-contact-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-contact-list i {
            color: var(--color-primary);
            width: 16px;
            text-align: center;
            font-size: 14px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 4px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
            transition: all .2s ease;
        }

        .footer-social a:hover {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .footer-bottom {
            background: #E5E2DA;
        }

        .footer-bottom .grid-container {
            padding-top: 16px;
            padding-bottom: 16px;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-copy,
        .footer-beian {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        @media screen and (max-width: 1024px) {
            :root {
                --space-section: 56px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

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

        @media screen and (max-width: 640px) {
            :root {
                --space-section: 40px;
            }

            body {
                font-size: 15px;
            }

            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-top {
                padding: 12px 0 10px;
            }

            .brand-logo {
                font-size: 18px;
            }

            .brand-logo i {
                font-size: 20px;
            }

            .header-contact-btn {
                padding: 8px 14px;
                font-size: 13px;
            }

            .header-contact-btn span {
                display: none;
            }

            .nav-link {
                padding: 9px 12px;
                font-size: 14px;
            }

            .category-page-head {
                padding: 32px 0 28px;
            }

            .category-page-head h1 {
                font-size: 28px;
                padding-left: 14px;
            }

            .category-page-head h1::before {
                top: 5px;
                bottom: 5px;
            }

            .category-breadcrumb {
                font-size: 12px;
                margin-bottom: 14px;
            }

            .category-description {
                font-size: 14px;
                line-height: 1.75;
            }

            .section-head {
                margin-bottom: 24px;
            }

            .section-head h2 {
                font-size: 22px;
                padding-left: 14px;
            }

            .section-head h2::before {
                top: 4px;
                bottom: 4px;
            }

            .article-list-item {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }

            .article-list-thumb {
                width: 100%;
                height: 160px;
                flex-basis: auto;
            }

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

            .stats-strip {
                padding: 12px;
            }

            .stat-item {
                padding: 12px 4px;
            }

            .stat-number {
                font-size: 24px;
            }

            .faq-section {
                padding: 24px 20px;
            }

            .faq-answer {
                padding-left: 0;
                padding-top: 8px;
            }

            .cta-block {
                padding: 40px 20px;
            }

            .cta-content h2 {
                font-size: 24px;
            }

            .cta-content p {
                font-size: 14px;
            }

            .cta-btn {
                width: 100%;
                justify-content: center;
                padding: 14px 20px;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media screen and (max-width: 420px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }

            .stat-number {
                font-size: 20px;
            }

            .stat-label {
                font-size: 12px;
            }
        }

        @media screen and (max-width: 1024px) and (min-width: 641px) {
            .stat-number {
                font-size: 26px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
            }
        }

        .visually-hidden:not(:focus):not(:active) {
            position: absolute;
            width: 1px;
            height: 1px;
            margin: -1px;
            padding: 0;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category3 */
:root {
  --color-primary: #0E7C72;
  --color-primary-dark: #0A5C54;
  --color-primary-darker: #07433D;
  --color-primary-light: #E4F1EF;
  --color-secondary: #D97706;
  --color-secondary-light: #FBF1E1;
  --bg-body: #F6F5F1;
  --bg-card: #FFFFFF;
  --text-body: #1F2A37;
  --text-muted: #6B7280;
  --text-faint: #9CA3AF;
  --border-color: #E5E3DD;
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-tag: 999px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 2px 6px rgba(0,0,0,0.08), 0 8px 20px rgba(0,0,0,0.07);
  --space-section: 72px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg-body); color: var(--text-body); font-size: 15px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease; }
a:hover { color: var(--color-primary-dark); }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; }
.grid-container { max-width: 1200px; }
.site-header { position: sticky; top: 0; z-index: 100; background: #ffffff; border-bottom: 1px solid var(--border-color); box-shadow: 0 1px 3px rgba(0,0,0,0.03); }
.site-header .grid-container { max-width: 1280px; padding: 0 20px; }
.header-top { display: flex; align-items: center; justify-content: space-between; padding: 14px 0 8px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--text-body); letter-spacing: .3px; }
.brand-logo i { font-size: 24px; color: var(--color-primary); background: var(--color-primary-light); width: 38px; height: 38px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; }
.brand-logo span { color: var(--text-body); }
.header-contact-btn { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--color-primary); border: 1.5px solid var(--color-primary); border-radius: var(--radius-btn); padding: 8px 16px; background: transparent; transition: all .2s ease; }
.header-contact-btn:hover { background: var(--color-primary); color: #fff; }
.header-nav { display: flex; gap: 4px; padding: 6px 0 0; overflow-x: auto; white-space: nowrap; scrollbar-width: none; -ms-overflow-style: none; }
.header-nav::-webkit-scrollbar { display: none; }
.header-nav .nav-link { display: inline-flex; align-items: center; padding: 9px 16px; font-size: 14px; font-weight: 500; color: var(--text-muted); border-radius: 8px 8px 0 0; position: relative; transition: color .2s ease, background .2s ease; }
.header-nav .nav-link:hover { color: var(--text-body); background: #F3F4F2; }
.header-nav .nav-link.active { color: var(--color-primary); font-weight: 600; }
.header-nav .nav-link.active::after { content: ""; position: absolute; bottom: 0; left: 12px; right: 12px; height: 2px; background: var(--color-primary); border-radius: 2px 2px 0 0; }
main { overflow: hidden; }
.category-banner { background: var(--bg-body); padding: 56px 0 48px; border-bottom: 1px solid var(--border-color); background-image: radial-gradient(rgba(14,124,114,0.06) 1px, transparent 1px); background-size: 20px 20px; }
.breadcrumb { font-size: 13px; color: var(--text-faint); margin-bottom: 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: #ccc; }
.category-banner-main h1 { font-size: 34px; font-weight: 700; color: var(--text-body); line-height: 1.3; margin-bottom: 12px; letter-spacing: 1px; }
.category-banner-main .lead { max-width: 780px; font-size: 16px; color: var(--text-muted); line-height: 1.8; margin-bottom: 22px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; }
.badge-item { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 6px 14px; border-radius: var(--radius-tag); background: #fff; border: 1px solid var(--border-color); color: var(--text-muted); box-shadow: 0 1px 2px rgba(0,0,0,0.02); }
.badge-item i { font-size: 11px; color: var(--color-primary); }
.badge-item.hot { border-color: #F3D9B8; background: var(--color-secondary-light); color: #A1550E; }
.badge-item.hot i { color: var(--color-secondary); }
.badge-item.deep { border-color: #B9DDD9; background: var(--color-primary-light); color: var(--color-primary); }
.badge-item.deep i { color: var(--color-primary); }
.section-block { padding: var(--space-section) 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 28px; }
.section-head h2 { font-size: 24px; font-weight: 700; color: var(--text-body); padding-left: 14px; position: relative; line-height: 1.4; }
.section-head h2::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; background: var(--color-primary); border-radius: 2px; }
.section-more { font-size: 13px; font-weight: 500; color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; padding-bottom: 4px; border-bottom: 1px solid transparent; }
.section-more:hover { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.highlight-grid .grid-x { row-gap: 24px; }
.intro-card { background: var(--color-primary-light); border: 1px solid #CBE4E1; border-radius: var(--radius-card); padding: 28px; height: 100%; display: flex; flex-direction: column; justify-content: center; }
.intro-card .tag { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--color-primary); margin-bottom: 12px; }
.intro-card h3 { font-size: 19px; line-height: 1.5; font-weight: 700; color: var(--text-body); margin-bottom: 12px; }
.intro-card p { font-size: 14px; line-height: 1.75; color: var(--text-muted); }
.news-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); height: 100%; display: flex; flex-direction: column; transition: transform .2s ease, box-shadow .2s ease; }
.news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.news-card .thumb { position: relative; height: 160px; overflow: hidden; background: #EDECE8; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.news-card:hover .thumb img { transform: scale(1.02); }
.news-card .type-badge { position: absolute; top: 12px; left: 12px; z-index: 2; font-size: 11px; font-weight: 700; color: #fff; background: var(--color-secondary); padding: 4px 10px; border-radius: var(--radius-tag); letter-spacing: .3px; }
.news-card .type-badge.deep { background: var(--color-primary); }
.news-card .type-badge.watch { background: #4B6C8E; }
.news-card .type-badge.news { background: #B45309; }
.news-card .body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.news-card .meta { font-size: 12px; color: var(--text-faint); margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.news-card h3 { font-size: 17px; font-weight: 600; line-height: 1.5; color: var(--text-body); margin-bottom: 8px; }
.news-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card .footer-row { margin-top: auto; padding-top: 14px; font-size: 12px; color: var(--text-faint); display: flex; align-items: center; gap: 12px; }
.dark-panel-section { padding: var(--space-section) 0; }
.dark-panel { background: linear-gradient(135deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 60%, var(--color-primary) 100%); border-radius: 16px; padding: 56px 48px; color: #F0F4F2; position: relative; overflow: hidden; }
.dark-panel::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 28px 28px; pointer-events: none; }
.dark-panel .panel-inner { position: relative; z-index: 2; }
.panel-tag { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: #F8D9A8; background: rgba(217,119,6,0.18); border: 1px solid rgba(217,119,6,0.35); padding: 6px 14px; border-radius: var(--radius-tag); margin-bottom: 20px; letter-spacing: .5px; }
.dark-panel h2 { font-size: 30px; font-weight: 700; color: #FFF; margin-bottom: 12px; }
.dark-panel .sub-title { font-size: 16px; color: #C7D8D4; margin-bottom: 34px; max-width: 640px; line-height: 1.8; }
.info-flow { display: flex; flex-wrap: wrap; gap: 0; align-items: stretch; }
.info-flow .flow-item { flex: 1 1 0; min-width: 150px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 12px; padding: 24px 18px; margin-right: 12px; position: relative; transition: background .3s ease; }
.info-flow .flow-item:last-child { margin-right: 0; }
.info-flow .flow-item:hover { background: rgba(255,255,255,0.14); }
.info-flow .flow-item .step-num { font-size: 12px; font-weight: 700; color: #F8D9A8; letter-spacing: 1px; margin-bottom: 8px; }
.info-flow .flow-item h4 { font-size: 16px; color: #FFF; margin-bottom: 8px; font-weight: 600; }
.info-flow .flow-item p { font-size: 13px; color: #C7D8D4; line-height: 1.6; }
.flow-arrow { display: flex; align-items: center; color: #F8D9A8; font-size: 20px; margin: 0 2px; }
@media (max-width: 639px) {
  .info-flow { flex-direction: column; gap: 12px; }
  .info-flow .flow-item { margin-right: 0; }
  .flow-arrow { transform: rotate(90deg); margin: 0 auto; }
}
.featured-list-section { padding: var(--space-section) 0; background: #fff; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.featured-list { display: flex; flex-direction: column; gap: 0; }
.featured-row { display: flex; align-items: center; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--border-color); transition: background .2s ease; }
.featured-row:last-child { border-bottom: none; }
.featured-row:hover { background: #FAF9F6; }
.featured-row .thumb { width: 100px; height: 76px; border-radius: 8px; overflow: hidden; flex-shrink: 0; background: #EDECE8; }
.featured-row .thumb img { width: 100%; height: 100%; object-fit: cover; }
.featured-row .info { flex: 1; min-width: 0; }
.featured-row .badge-sm { display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: var(--radius-tag); margin-bottom: 6px; }
.badge-sm.green { color: var(--color-primary); background: var(--color-primary-light); }
.badge-sm.amber { color: #A1550E; background: var(--color-secondary-light); }
.badge-sm.blue { color: #365E7E; background: #E8F0F6; }
.featured-row h3 { font-size: 16px; font-weight: 600; color: var(--text-body); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 4px; }
.featured-row p { font-size: 13px; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.featured-row .date { font-size: 12px; color: var(--text-faint); flex-shrink: 0; padding-left: 10px; border-left: 1px solid var(--border-color); align-self: center; text-align: right; }
.perspective-section { padding: var(--space-section) 0; }
.perspective-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-card); padding: 30px 24px; box-shadow: var(--shadow-card); height: 100%; transition: transform .2s ease, box-shadow .2s ease; position: relative; overflow: hidden; }
.perspective-card::before { content: ""; position: absolute; top: 0; left: 0; width: 44px; height: 4px; background: var(--color-primary); border-radius: 0 0 4px 0; }
.perspective-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.perspective-card .num { font-size: 30px; font-weight: 800; color: var(--color-primary); opacity: .12; position: absolute; top: 14px; right: 18px; line-height: 1; font-variant-numeric: tabular-nums; }
.perspective-card h3 { font-size: 17px; font-weight: 700; color: var(--text-body); margin-bottom: 10px; }
.perspective-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.faq-section { padding: var(--space-section) 0; background: var(--bg-body); }
.grid-narrow { max-width: 860px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-card); box-shadow: var(--shadow-card); overflow: hidden; transition: box-shadow .2s ease; }
.faq-item:hover { box-shadow: var(--shadow-hover); }
.faq-item .faq-q { display: flex; align-items: center; gap: 14px; padding: 18px 22px; cursor: pointer; background: none; border: none; width: 100%; text-align: left; font-size: 15px; font-weight: 600; color: var(--text-body); }
.faq-item .faq-q .q-icon { width: 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--color-primary); color: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.faq-item .faq-q .arrow { margin-left: auto; font-size: 13px; color: var(--text-faint); transition: transform .25s ease; }
.faq-item.active .faq-q .arrow { transform: rotate(180deg); color: var(--color-primary); }
.faq-item .faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item .faq-a-inner { padding: 0 22px 20px 64px; font-size: 14px; color: var(--text-muted); line-height: 1.8; }
.faq-item .faq-a-inner .a-label { font-weight: 700; color: var(--color-primary); margin-right: 6px; }
.cta-section { padding: 0 0 var(--space-section); }
.cta-block { background: var(--color-primary-darker); border-radius: 16px; padding: 52px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-block::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,0.07) 1px, transparent 1px); background-size: 18px 18px; }
.cta-block h2 { font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 10px; position: relative; z-index: 2; }
.cta-block p { font-size: 15px; color: #B8D0CB; margin-bottom: 28px; position: relative; z-index: 2; }
.cta-btn { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: #1F2A37; background: var(--color-secondary); padding: 12px 28px; border-radius: var(--radius-btn); transition: all .2s ease; position: relative; z-index: 2; }
.cta-btn:hover { background: #E08B2E; color: #FFF; box-shadow: 0 4px 16px rgba(217,119,6,0.3); transform: translateY(-1px); }
.site-footer { background: #EDEBE6; border-top: 1px solid var(--border-color); margin-top: 0; }
.site-footer .grid-container { max-width: 1200px; padding: 0 20px; }
.footer-main { display: grid; grid-template-columns: 1.4fr 0.9fr 1fr 0.8fr; gap: 36px; padding: 48px 0 36px; }
.footer-brand-name { font-size: 18px; font-weight: 700; color: var(--text-body); display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.footer-brand-name i { color: var(--color-primary); font-size: 22px; }
.footer-brand-desc { font-size: 13px; line-height: 1.75; color: var(--text-muted); max-width: 300px; }
.footer-col-title { font-size: 15px; font-weight: 600; color: var(--text-body); margin-bottom: 14px; }
.footer-links li, .footer-contact-list li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--text-muted); }
.footer-links a:hover { color: var(--color-primary); }
.footer-contact-list li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); }
.footer-contact-list i { color: var(--color-primary); width: 16px; text-align: center; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 38px; height: 38px; border-radius: 8px; border: 1px solid var(--border-color); display: inline-flex; align-items: center; justify-content: center; color: var(--text-muted); background: #fff; transition: all .2s ease; }
.footer-social a:hover { color: var(--color-primary); border-color: var(--color-primary); }
.footer-bottom { background: #E4E2DC; border-top: 1px solid #DBD9D3; padding: 16px 0; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--text-faint); }
.footer-beian { font-size: 12px; color: var(--text-faint); }
@media (max-width: 1023px) {
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
  .category-banner { padding: 44px 0 36px; }
  .category-banner-main h1 { font-size: 30px; }
  .dark-panel { padding: 44px 36px; }
  .dark-panel h2 { font-size: 24px; }
  .featured-row .thumb { width: 80px; height: 64px; }
  .cta-block { padding: 44px 30px; }
}
@media (max-width: 639px) {
  :root { --space-section: 48px; }
  .header-top { padding: 12px 0 6px; }
  .brand-logo { font-size: 17px; }
  .brand-logo i { width: 34px; height: 34px; font-size: 21px; }
  .header-contact-btn { padding: 7px 12px; font-size: 12px; }
  .header-contact-btn span { display: none; }
  .header-nav .nav-link { padding: 8px 12px; font-size: 13px; }
  .category-banner { padding: 38px 0 32px; }
  .category-banner-main h1 { font-size: 25px; }
  .category-banner-main .lead { font-size: 15px; }
  .badge-item { font-size: 11px; padding: 5px 11px; }
  .section-head { margin-bottom: 20px; }
  .section-head h2 { font-size: 20px; }
  .section-more { font-size: 12px; }
  .highlight-grid .grid-x { row-gap: 16px; }
  .news-card .thumb { height: 140px; }
  .news-card .body { padding: 14px; }
  .dark-panel { padding: 32px 22px; border-radius: 12px; }
  .dark-panel h2 { font-size: 21px; }
  .dark-panel .sub-title { font-size: 14px; }
  .featured-row { flex-direction: column; align-items: flex-start; gap: 10px; padding: 16px 0; }
  .featured-row .thumb { width: 100%; height: 150px; }
  .featured-row .date { padding-left: 0; border-left: none; text-align: left; }
  .perspective-card { padding: 24px 18px; }
  .cta-block { padding: 36px 20px; border-radius: 12px; }
  .cta-block h2 { font-size: 21px; }
  .cta-btn { width: 100%; justify-content: center; }
  .footer-main { grid-template-columns: 1fr; gap: 24px; padding: 36px 0 28px; }
  .footer-bottom-inner { flex-direction: column; align-items: center; text-align: center; }
  .faq-item .faq-q { padding: 15px 16px; font-size: 14px; }
  .faq-item .faq-a-inner { padding: 0 16px 16px 48px; font-size: 13px; }
}

/* roulang page: category4 */
:root {
            --color-primary: #07857C;
            --color-primary-dark: #056D65;
            --color-primary-light: rgba(7, 133, 124, 0.08);
            --color-secondary: #C48B2C;
            --bg-body: #F6F5F1;
            --bg-card: #FFFFFF;
            --bg-well: #EFEDE8;
            --text-body: #1F2A37;
            --text-muted: #6B7280;
            --text-weak: #9CA3AF;
            --border-color: #E5E3DD;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-tag: 999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 2px 6px rgba(0, 0, 0, 0.08), 0 8px 20px rgba(0, 0, 0, 0.07);
            --space-section: 72px;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
        }

        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-cn);
            background: var(--bg-body);
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1, h2, h3, h4 {
            margin: 0;
            color: var(--text-body);
            font-weight: 700;
            line-height: 1.4;
        }
        :focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
            font-family: var(--font-cn);
        }
        .btn-primary {
            background: var(--color-primary);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #FFFFFF;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
        }

        /* ===== Header ===== */
        .site-header {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .brand-logo i {
            font-size: 22px;
            color: var(--color-primary);
        }
        .brand-logo:hover {
            color: var(--color-primary-dark);
        }
        .header-contact-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-btn);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s ease;
            background: #FFFFFF;
        }
        .header-contact-btn:hover {
            background: var(--color-primary);
            color: #FFFFFF;
        }
        .header-nav {
            display: flex;
            gap: 4px;
            padding: 4px 0;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .header-nav::-webkit-scrollbar {
            display: none;
        }
        .nav-link {
            display: inline-block;
            padding: 10px 16px;
            color: var(--text-body);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            border-radius: 6px 6px 0 0;
            white-space: nowrap;
            transition: background 0.2s ease, color 0.2s ease;
            position: relative;
        }
        .nav-link:hover {
            background: #F0EFEB;
            color: var(--color-primary);
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
            background: var(--color-primary-light);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }

        /* ===== Page Head ===== */
        .page-head {
            position: relative;
            background: var(--bg-body);
            border-bottom: 1px solid var(--border-color);
            padding: 38px 0 34px;
            overflow: hidden;
        }
        .page-head::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            background-image: url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
            opacity: 0.07;
            pointer-events: none;
        }
        .page-head .grid-container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-sep {
            margin: 0 8px;
            color: var(--border-color);
        }
        .breadcrumb .current {
            color: var(--text-body);
        }
        .page-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-tag);
            margin-bottom: 16px;
        }
        .page-head h1 {
            font-size: 34px;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--text-body);
        }
        .page-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 760px;
            margin: 0;
        }

        /* ===== Section Heading ===== */
        .section-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        .section-heading::before {
            content: "";
            width: 4px;
            height: 22px;
            background: var(--color-primary);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .section-heading h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-body);
            margin: 0;
        }
        .section-sub {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
            margin: 0 0 32px;
            max-width: 720px;
        }

        /* ===== Quick Cards ===== */
        .quick-section {
            padding: 34px 0 12px;
        }
        .quick-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 26px 24px;
            height: 100%;
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .quick-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(7, 133, 124, 0.25);
        }
        .quick-icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .quick-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 8px;
        }
        .quick-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== Narrow Container ===== */
        .narrow-container {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== FAQ Accordion ===== */
        .faq-section {
            padding: var(--space-section) 0;
        }
        .accordion {
            background: transparent;
            border: none;
            margin: 0 0 24px;
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color) !important;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .accordion-item.is-active {
            border-color: rgba(7, 133, 124, 0.4) !important;
            box-shadow: var(--shadow-hover);
        }
        .accordion-title {
            position: relative;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 20px 56px 20px 24px;
            border: none !important;
            background: transparent;
            color: var(--text-body);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.6;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .accordion-title:hover,
        .accordion-title:focus {
            background: rgba(7, 133, 124, 0.04);
            color: var(--text-body);
        }
        .accordion-title::before,
        .accordion-title::after {
            display: none !important;
        }
        .faq-q-badge {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
            font-family: var(--font-cn);
        }
        .faq-q-text {
            flex: 1;
        }
        .accordion-arrow {
            position: absolute;
            right: 22px;
            top: 27px;
            font-size: 13px;
            color: var(--text-weak);
            transition: transform 0.25s ease, color 0.25s ease;
        }
        .accordion-item.is-active .accordion-arrow {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .accordion-content {
            padding: 0 24px 22px;
            border: none !important;
            background: transparent;
        }
        .accordion-content p {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            margin: 0;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        .faq-a-badge {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-body);
            color: var(--color-secondary);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 3px;
            font-family: var(--font-cn);
        }

        /* ===== Tips Section ===== */
        .tips-section {
            background: #FFFFFF;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: var(--space-section) 0;
        }
        .tips-section .section-sub {
            margin-bottom: 24px;
        }
        .tip-item {
            display: flex;
            gap: 18px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .tip-item:last-child {
            border-bottom: none;
        }
        .tip-num {
            flex-shrink: 0;
            min-width: 52px;
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
            font-variant-numeric: tabular-nums;
            line-height: 1;
            padding-top: 4px;
        }
        .tip-body h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-body);
        }
        .tip-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.75;
        }
        .tips-figure {
            margin: 20px 0 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            background: var(--bg-card);
        }
        .tips-figure img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }
        .tips-figure figcaption {
            padding: 12px 16px;
            font-size: 13px;
            color: var(--text-muted);
            background: var(--bg-card);
        }

        /* ===== Contact Note ===== */
        .contact-note-section {
            padding: var(--space-section) 0;
        }
        .contact-note {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-left: 4px solid var(--color-secondary);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 32px;
            flex-wrap: wrap;
        }
        .contact-note-text {
            flex: 1;
            min-width: 260px;
        }
        .contact-note-text h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-body);
        }
        .contact-note-text p {
            margin: 0;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
        }
        .contact-note-icon {
            margin-left: auto;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(196, 139, 44, 0.1);
            color: var(--color-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            flex-shrink: 0;
        }

        /* ===== CTA Band ===== */
        .cta-band {
            position: relative;
            background: var(--color-primary-dark);
            padding: 60px 0;
            overflow: hidden;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: 0.14;
            mix-blend-mode: soft-light;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
            padding: 0 20px;
        }
        .cta-inner h2 {
            color: #FFFFFF;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            margin-bottom: 28px;
            line-height: 1.75;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta {
            background: var(--color-secondary);
            color: #FFFFFF;
            border-color: var(--color-secondary);
        }
        .btn-cta:hover {
            background: #B3791F;
            color: #FFFFFF;
        }
        .btn-cta-ghost {
            background: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #FFFFFF;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #EFEDE8;
            border-top: 1px solid var(--border-color);
        }
        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding: 48px 0 36px;
        }
        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }
        .footer-brand-name i {
            font-size: 19px;
        }
        .footer-brand-desc {
            font-size: 13px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 300px;
            margin: 0;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 14px;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 8px;
        }
        .footer-contact-list i {
            color: var(--color-primary);
            width: 16px;
            text-align: center;
            font-size: 13px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 15px;
            transition: all 0.2s ease;
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #FFFFFF;
            transform: translateY(-2px);
        }
        .footer-bottom {
            background: #E7E4DD;
            border-top: 1px solid var(--border-color);
            padding: 14px 0;
        }
        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            :root {
                --space-section: 56px;
            }
            .page-head h1 {
                font-size: 30px;
            }
            .tips-figure {
                margin-top: 24px;
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 639px) {
            :root {
                --space-section: 40px;
            }
            .header-top {
                padding: 12px 4px;
            }
            .brand-logo {
                font-size: 17px;
            }
            .brand-logo i {
                font-size: 18px;
            }
            .header-contact-btn {
                padding: 7px 12px;
                font-size: 12px;
            }
            .nav-link {
                padding: 9px 12px;
                font-size: 14px;
            }
            .page-head {
                padding: 28px 0 24px;
            }
            .page-head h1 {
                font-size: 26px;
            }
            .page-desc {
                font-size: 14px;
            }
            .section-heading h2 {
                font-size: 22px;
            }
            .quick-card {
                padding: 20px;
            }
            .accordion-title {
                padding: 16px 46px 16px 16px;
                font-size: 15px;
            }
            .accordion-arrow {
                right: 16px;
                top: 23px;
            }
            .faq-q-badge {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }
            .accordion-content {
                padding: 0 16px 18px;
            }
            .accordion-content p {
                gap: 8px;
                font-size: 14px;
            }
            .faq-a-badge {
                width: 24px;
                height: 24px;
                font-size: 12px;
                margin-top: 2px;
            }
            .tip-item {
                gap: 12px;
            }
            .tip-num {
                min-width: 40px;
                font-size: 24px;
            }
            .contact-note {
                padding: 22px 20px;
                gap: 16px;
            }
            .contact-note-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                width: 100%;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 36px 0 24px;
            }
            .footer-bottom-inner {
                justify-content: center;
                text-align: center;
            }
        }