/* roulang page: index */
:root {
    --primary: #4B7CA6;
    --primary-dark: #3D688A;
    --accent: #C0A062;
    --accent-light: #F5E9D0;
    --accent-text: #A07B3F;
    --dark: #233A4E;
    --text: #2F3B47;
    --text-secondary: #66788A;
    --text-light: #9AAEBC;
    --bg: #F5F7FA;
    --card-bg: #FFFFFF;
    --section-alt: #EDF1F6;
    --border: #DDE4EB;
    --divider: #E8EDF2;
    --shadow: 0 2px 12px rgba(35,58,78,0.06);
    --shadow-hover: 0 10px 30px rgba(35,58,78,0.10);
    --radius: 14px;
    --radius-sm: 8px;
    --radius-pill: 999px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }
.section-alt { background: var(--section-alt); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-title { font-size: 30px; font-weight: 700; color: var(--dark); line-height: 1.3; margin-bottom: 16px; letter-spacing: 1px; }
.section-line { width: 40px; height: 4px; background: var(--accent); border-radius: 2px; margin: 0 auto; }
.section-sub { color: var(--text-secondary); max-width: 640px; margin: 16px auto 0; font-size: 16px; line-height: 1.7; }
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    background: var(--primary); color: #fff; border: 1px solid var(--primary);
    padding: 12px 28px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600;
    cursor: pointer; transition: all .25s ease; text-decoration: none;
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(75,124,166,0.25); }
.btn-secondary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    background: transparent; color: var(--primary); border: 1px solid var(--primary);
    padding: 12px 28px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600;
    cursor: pointer; transition: all .25s ease; text-decoration: none;
}
.btn-secondary:hover { background: var(--section-alt); color: var(--primary-dark); }
.badge {
    display: inline-block; background: var(--accent-light); color: var(--accent-text);
    padding: 4px 12px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600;
    line-height: 1.4;
}
/* ===== Navigation ===== */
.site-nav {
    position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
    width: calc(100% - 32px); max-width: 1100px; z-index: 1000;
    background: rgba(255,255,255,0.92);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    border-radius: var(--radius-pill);
    box-shadow: 0 4px 20px rgba(35,58,78,0.08);
    border: 1px solid rgba(255,255,255,0.6);
    transition: top .3s ease;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; }
.nav-logo { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; color: var(--dark); text-decoration: none; }
.nav-logo .dot { width: 5px; height: 5px; background: var(--accent); border-radius: 50%; }
.nav-logo .mil { font-family: "Inter", "Helvetica Neue", sans-serif; font-weight: 600; font-size: 15px; color: var(--text-light); letter-spacing: 1px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link { font-size: 14px; font-weight: 500; color: var(--text); text-decoration: none; transition: color .25s ease; position: relative; }
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link::after {
    content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
    background: var(--accent); transition: width .25s ease;
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-btn { margin-left: 8px; }
.nav-btn a {
    display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff;
    padding: 9px 22px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 600;
    text-decoration: none; transition: all .25s ease;
}
.nav-btn a:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(75,124,166,0.3); }
.mobile-toggle { display: none; width: 44px; height: 44px; border-radius: 50%; background: var(--primary); color: #fff; border: none; cursor: pointer; align-items: center; justify-content: center; }
.mobile-menu {
    display: none; position: fixed; inset: 0; z-index: 999;
    background: rgba(245,247,250,0.96); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
    flex-direction: column; justify-content: center; align-items: center; gap: 0;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
    font-size: 19px; font-weight: 600; color: var(--dark); padding: 16px 24px;
    text-decoration: none; text-align: center; width: 100%; transition: background .25s ease;
}
.mobile-menu a:hover { background: rgba(75,124,166,0.08); color: var(--primary); }
.mobile-menu .mobile-close {
    position: absolute; top: 20px; right: 20px; width: 46px; height: 46px;
    border-radius: 50%; background: var(--secondary); color: var(--dark); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 18px;
}
.mobile-menu .mobile-cta { margin-top: 20px; }
/* ===== Hero ===== */
.hero {
    min-height: 90vh; display: flex; align-items: center;
    background: linear-gradient(135deg, #F5F7FA 0%, #FFFFFF 100%);
    position: relative; padding: 120px 0 80px; overflow: hidden;
}
.hero::before {
    content: ""; position: absolute; inset: 0; z-index: 0;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover; background-position: center; opacity: 0.12;
}
.hero .container { position: relative; z-index: 1; }
.hero-content { text-align: center; max-width: 860px; margin: 0 auto; }
.hero-title { font-size: 36px; font-weight: 800; color: var(--dark); line-height: 1.25; letter-spacing: 2px; margin-bottom: 20px; }
.hero-title .dot-sep { color: var(--accent); margin: 0 10px; }
.hero-subtitle { font-size: 18px; color: var(--text-secondary); line-height: 1.7; max-width: 620px; margin: 0 auto 36px; }
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.hero-trust { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; }
.hero-trust span { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
.hero-trust span::before { content: ""; width: 4px; height: 4px; background: var(--accent); border-radius: 50%; }
.hero-quick { display: flex; justify-content: center; gap: 20px; margin-top: 42px; flex-wrap: wrap; }
.hero-quick-card {
    background: #fff; border-radius: var(--radius); padding: 20px 26px;
    box-shadow: var(--shadow); border: 1px solid var(--border); min-width: 200px;
    text-align: center; transition: all .3s ease; cursor: pointer; text-decoration: none;
}
.hero-quick-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: var(--accent); }
.hero-quick-card .icon { font-size: 26px; color: var(--primary); margin-bottom: 8px; }
.hero-quick-card .txt { font-size: 15px; font-weight: 600; color: var(--dark); }
/* ===== Feature ===== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.feature-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px 28px; box-shadow: var(--shadow); transition: all .3s ease;
}
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card:hover .feature-icon { background: var(--accent-light); color: var(--accent-text); }
.feature-icon {
    width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: rgba(75,124,166,0.08); color: var(--primary); font-size: 20px; margin-bottom: 20px;
    transition: all .3s ease;
}
.feature-title { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }
.feature-link { font-size: 14px; color: var(--primary); font-weight: 500; text-decoration: none; position: relative; }
.feature-link:hover { color: var(--accent-text); }
/* ===== Showcase ===== */
.showcase-block { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 72px; }
.showcase-block:last-child { margin-bottom: 0; }
.showcase-media { border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
.showcase-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .4s ease; }
.showcase-media:hover img { transform: scale(1.02); }
.showcase-badge { margin-bottom: 16px; }
.showcase-heading { font-size: 24px; font-weight: 700; color: var(--dark); margin-bottom: 14px; line-height: 1.35; }
.showcase-desc { font-size: 16px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 20px; }
.showcase-points { display: flex; flex-direction: column; gap: 12px; }
.showcase-point { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--text); }
.showcase-point i { color: var(--primary); margin-top: 4px; font-size: 14px; }
/* ===== Evidence ===== */
.evidence-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 56px; }
.evidence-stat { text-align: center; padding: 24px 16px; }
.evidence-number { font-size: 40px; font-weight: 800; color: var(--primary); font-family: "Inter", "Helvetica Neue", sans-serif; }
.evidence-label { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }
.evidence-panels { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: stretch; }
.evidence-left { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.evidence-left h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 20px; }
.evidence-list { display: flex; flex-direction: column; gap: 16px; }
.evidence-item { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text); }
.evidence-item i { color: var(--accent); font-size: 18px; width: 24px; text-align: center; }
.evidence-right { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); display: flex; flex-direction: column; justify-content: center; }
.evidence-right .quote { font-size: 15px; line-height: 1.8; color: var(--text-secondary); font-style: italic; margin-bottom: 16px; }
.evidence-right .source { font-size: 14px; font-weight: 600; color: var(--dark); display: flex; align-items: center; gap: 8px; }
.evidence-right .source i { color: var(--accent); }
/* ===== Pricing ===== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; align-items: stretch; }
.pricing-card {
    background: #FBFCFD; border: 1px solid var(--border); border-radius: var(--radius);
    padding: 36px 30px; box-shadow: var(--shadow); transition: all .3s ease;
    display: flex; flex-direction: column; position: relative;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.pricing-card.featured { border: 1px solid var(--primary); background: #fff; }
.pricing-card.featured::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px;
    background: var(--accent); border-radius: var(--radius) var(--radius) 0 0;
}
.pricing-plan { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.pricing-flag { margin-bottom: 10px; }
.pricing-price { font-size: 32px; font-weight: 800; color: var(--primary); font-family: "Inter", sans-serif; display: flex; align-items: baseline; gap: 4px; }
.pricing-price .unit { font-size: 14px; font-weight: 400; color: var(--text-secondary); }
.pricing-period { font-size: 14px; color: var(--text-light); margin-bottom: 24px; }
.pricing-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; flex: 1; }
.pricing-feature { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text); }
.pricing-feature i { color: var(--primary); margin-top: 4px; font-size: 13px; }
.pricing-cta { margin-top: auto; }
.pricing-cta .btn-primary, .pricing-cta .btn-secondary { width: 100%; }
/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.accordion { background: transparent; border: none; }
.accordion-item { background: transparent; border-bottom: 1px solid var(--border); }
.accordion-item:first-child { border-top: 1px solid var(--border); }
.accordion-title {
    font-size: 16px; font-weight: 600; color: var(--text); padding: 22px 24px 22px 0;
    position: relative; display: block; text-decoration: none;
}
.accordion-title:hover, .accordion-title:focus { color: var(--primary); background: transparent; }
.accordion-title::after {
    content: "\f054"; font-family: "Font Awesome 6 Free"; font-weight: 900;
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    color: var(--text-light); transition: all .25s ease; font-size: 12px;
}
.accordion-item.is-active .accordion-title::after { transform: translateY(-50%) rotate(90deg); color: var(--accent); }
.accordion-content {
    padding: 0 24px 22px 0; font-size: 15px; line-height: 1.7; color: var(--text-secondary);
    background: transparent; border: none;
}
.faq-footer { text-align: center; padding: 32px 0 0; font-size: 15px; color: var(--text-secondary); }
.faq-footer a { color: var(--primary); font-weight: 600; margin-left: 6px; text-decoration: underline; }
/* ===== News ===== */
.news-list { max-width: 900px; margin: 0 auto; }
.news-item {
    display: flex; align-items: center; gap: 24px; padding: 20px 0;
    border-bottom: 1px solid var(--border); transition: all .3s ease;
}
.news-item:hover { padding-left: 10px; }
.news-item:hover .news-date { background: var(--primary); }
.news-item:hover .news-date span { color: #fff; }
.news-date {
    flex-shrink: 0; width: 72px; height: 72px; border-radius: var(--radius-sm);
    background: rgba(75,124,166,0.08); display: flex; flex-direction: column;
    align-items: center; justify-content: center; transition: all .3s ease;
}
.news-day { font-size: 22px; font-weight: 800; color: var(--accent); font-family: "Inter", sans-serif; line-height: 1; }
.news-month { font-size: 12px; color: var(--text-secondary); margin-top: 4px; line-height: 1; }
.news-body { flex: 1; min-width: 0; }
.news-title { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 6px; line-height: 1.4; }
.news-title a { color: inherit; text-decoration: none; transition: color .25s ease; }
.news-title a:hover { color: var(--primary); }
.news-excerpt { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-meta { display: flex; align-items: center; gap: 12px; }
.news-more { font-size: 14px; font-weight: 600; color: var(--primary); text-decoration: none; }
.news-more:hover { color: var(--accent-text); }
.news-empty {
    border: 2px dashed var(--border); border-radius: var(--radius);
    padding: 60px 24px; text-align: center; color: var(--text-light); font-size: 15px;
}
/* ===== Footer ===== */
.site-footer { background: var(--dark); color: #CBD6E0; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.4fr; gap: 48px; padding-bottom: 48px; }
.footer-brand-name { font-size: 22px; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand-name .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.footer-brand-desc { font-size: 14px; line-height: 1.7; color: #9AAEBC; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.08);
    display: flex; align-items: center; justify-content: center; color: #CBD6E0;
    font-size: 16px; transition: all .3s ease;
}
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); }
.footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 20px; letter-spacing: 1px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: #9AAEBC; font-size: 14px; text-decoration: none; transition: color .25s ease; }
.footer-col a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: #9AAEBC; margin-bottom: 10px; line-height: 1.6; }
.footer-contact i { color: var(--accent); margin-top: 4px; }
.footer-subscribe-form { display: flex; gap: 8px; margin-top: 8px; }
.footer-subscribe-form input[type="email"] {
    flex: 1; background: #fff; border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius-sm);
    padding: 10px 14px; font-size: 14px; color: var(--text); outline: none;
    transition: border-color .25s ease;
}
.footer-subscribe-form input[type="email"]:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(192,160,98,0.2); }
.footer-subscribe-form button {
    background: var(--accent); color: #fff; border: none; border-radius: var(--radius-sm);
    padding: 10px 18px; font-size: 14px; font-weight: 600; cursor: pointer;
    transition: background .25s ease;
}
.footer-subscribe-form button:hover { background: #A07B3F; }
.footer-copyright { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-copyright p { font-size: 12px; color: #7A8A9A; }
.footer-copyright .icp { font-size: 12px; color: #7A8A9A; }
/* ===== Float CTA ===== */
.float-cta {
    position: fixed; right: 28px; bottom: 28px; z-index: 900;
    width: 56px; height: 56px; border-radius: 50%; background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 20px rgba(75,124,166,0.3);
    cursor: pointer; text-decoration: none; opacity: 0; visibility: hidden;
    transition: all .3s ease; font-size: 20px; overflow: hidden; white-space: nowrap;
}
.float-cta.visible { opacity: 1; visibility: visible; }
.float-cta:hover { border-radius: 28px; width: auto; padding: 0 22px; gap: 8px; font-size: 15px; }
.float-cta:hover .cta-text { display: inline; }
.float-cta .cta-text { display: none; font-weight: 600; }
/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { gap: 20px; }
    .pricing-card { padding: 28px 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 840px) {
    .nav-links { display: none; }
    .nav-btn { display: none; }
    .mobile-toggle { display: flex; }
}
@media (max-width: 640px) {
    .section { padding: 60px 0; }
    .section-title { font-size: 24px; }
    .hero-title { font-size: 28px; }
    .hero-subtitle { font-size: 16px; }
    .showcase-block { grid-template-columns: 1fr; gap: 24px; }
    .showcase-block:nth-child(2) .showcase-media { order: -1; }
    .evidence-stats { grid-template-columns: repeat(2, 1fr); }
    .evidence-panels { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .news-item { flex-direction: row; gap: 16px; }
    .news-date { width: 56px; height: 56px; }
    .news-day { font-size: 18px; }
    .hero { padding: 100px 0 60px; }
    .hero-quick { flex-direction: column; align-items: center; }
    .hero-quick-card { width: 100%; max-width: 280px; }
    .float-cta { right: 16px; bottom: 16px; width: 52px; height: 52px; }
}

/* roulang page: article */
:root {
            --primary: #4B7CA6;
            --primary-dark: #3D688A;
            --primary-light: rgba(75, 124, 166, 0.10);
            --accent: #C0A062;
            --accent-light: #F5E9D0;
            --accent-dark: #A07B3F;
            --dark: #233A4E;
            --text: #2F3B47;
            --text-secondary: #66788A;
            --text-light: #9AAEBC;
            --bg: #F5F7FA;
            --bg-alt: #EDF1F6;
            --card-bg: #FFFFFF;
            --border: #DDE4EB;
            --border-light: #E8EDF2;
            --shadow-card: 0 2px 12px rgba(35, 58, 78, 0.06);
            --shadow-hover: 0 10px 30px rgba(35, 58, 78, 0.10);
            --shadow-nav: 0 4px 20px rgba(35, 58, 78, 0.08);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --container: 1200px;
            --font-cn: "PingFang SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
            --font-en: "Inter", "Helvetica Neue", sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-card); }
        ul, ol { list-style-position: inside; }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .row { max-width: var(--container); margin: 0 auto; }
        @media screen and (max-width: 1024px) {
            .container { padding: 0 20px; }
        }
        @media screen and (max-width: 640px) {
            .container { padding: 0 16px; }
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-nav);
            z-index: 1000;
            border: 1px solid rgba(221, 228, 235, 0.6);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 18px 10px 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 20px;
            color: var(--dark);
            gap: 8px;
        }
        .nav-logo .dot {
            width: 5px;
            height: 5px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .nav-logo .mil {
            font-family: var(--font-en);
            font-weight: 500;
            font-size: 14px;
            color: var(--text-secondary);
            letter-spacing: 1px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            font-size: 15px;
            color: var(--text-secondary);
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            transition: color 0.3s ease;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width 0.3s ease;
        }
        .nav-link:hover { color: var(--dark); }
        .nav-link:hover::after { width: 100%; }
        .nav-link.active { color: var(--dark); font-weight: 600; }
        .nav-link.active::after { width: 100%; }
        .nav-btn a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-pill);
            transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        }
        .nav-btn a:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(75, 124, 166, 0.3);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 22px;
            color: var(--dark);
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            transition: background 0.3s ease;
        }
        .mobile-toggle:hover { background: var(--bg-alt); }

        /* ===== 移动端菜单 ===== */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(245, 247, 250, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.35s ease, visibility 0.35s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-menu-link {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark);
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            transition: background 0.3s ease, color 0.3s ease;
        }
        .mobile-menu-link:hover { background: var(--primary-light); color: var(--primary); }
        .mobile-menu-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: var(--radius-pill);
            margin-top: 12px;
            transition: background 0.3s ease, transform 0.3s ease;
        }
        .mobile-menu-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            padding: 104px 0 16px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-light);
            gap: 6px;
        }
        .breadcrumb a { color: var(--text-secondary); transition: color 0.3s ease; }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--border); }
        .breadcrumb .current { color: var(--text-secondary); max-width: 260px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

        /* ===== 文章头部 ===== */
        .article-header {
            background: var(--card-bg);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border-light);
        }
        .article-header .container {
            max-width: 920px;
            text-align: center;
        }
        .article-header h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .article-header-line {
            width: 40px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 0 auto 22px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .meta-item i { color: var(--accent); }
        .meta-category-badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        /* ===== 正文区 ===== */
        .article-main {
            background: var(--bg);
            padding: 56px 0 40px;
        }
        .article-container {
            max-width: 860px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            padding: 48px 56px;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
        }
        .article-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--dark);
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }
        .article-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark);
            margin: 28px 0 12px;
        }
        .article-content p {
            margin-bottom: 24px;
            line-height: 1.85;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            font-style: normal;
            color: var(--text-secondary);
        }
        .article-content img {
            border-radius: 12px;
            margin: 24px auto;
            box-shadow: var(--shadow-card);
        }
        .article-content ul, .article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 10px;
            line-height: 1.75;
        }
        .article-content li::marker { color: var(--accent); }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover { color: var(--primary-dark); }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 16px;
            text-align: left;
        }
        .article-content table th {
            background: var(--bg);
            color: var(--dark);
            font-weight: 600;
        }

        /* 内容未找到 */
        .article-not-found {
            text-align: center;
            padding: 80px 40px;
        }
        .article-not-found .icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 24px;
        }
        .article-not-found h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(75, 124, 166, 0.3);
            color: #fff;
        }

        /* ===== 文章底部导航 ===== */
        .article-nav-wrap {
            background: var(--bg);
            padding: 0 0 56px;
        }
        .article-nav-box {
            max-width: 860px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .back-list-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            transition: all 0.3s ease;
        }
        .back-list-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateX(-3px);
        }
        .prev-next {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .prev-next a {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .prev-next a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            background: var(--card-bg);
            padding: 72px 0;
            border-top: 1px solid var(--border-light);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 14px;
        }
        .section-title .line {
            width: 40px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 0 auto;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 12px;
        }
        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .related-card-body .meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
        }
        .related-card-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.5;
            transition: color 0.3s ease;
        }
        .related-card:hover h4 { color: var(--primary); }
        .related-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            align-self: flex-start;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-light);
            padding: 56px 0;
            border-top: 1px solid var(--border-light);
        }
        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 48px;
        }
        .cta-box h3 {
            font-size: 24px;
            color: var(--dark);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-box p {
            font-size: 15px;
            color: var(--text-secondary);
        }
        .cta-btn {
            background: var(--primary);
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(75, 124, 166, 0.35);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            padding: 56px 0 0;
            color: #9AAEBC;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand-name {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-brand-name .dot {
            width: 5px;
            height: 5px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 20px;
            color: #9AAEBC;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #c8d4de;
            font-size: 14px;
            transition: all 0.3s ease;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--dark);
            transform: translateY(-3px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            color: #9AAEBC;
            font-size: 14px;
            transition: color 0.3s ease, padding-left 0.3s ease;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
            color: #9AAEBC;
        }
        .footer-contact li i {
            color: var(--accent);
            margin-top: 4px;
            flex-shrink: 0;
        }
        .footer-contact li + li { margin-top: 12px; }
        .footer-subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }
        .footer-subscribe-form input {
            flex: 1;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.3s ease;
            font-family: var(--font-cn);
        }
        .footer-subscribe-form input::placeholder { color: #7a8a99; }
        .footer-subscribe-form input:focus {
            border-color: var(--accent);
        }
        .footer-subscribe-form button {
            background: var(--accent);
            border: none;
            border-radius: var(--radius-btn);
            color: var(--dark);
            width: 44px;
            height: 44px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        .footer-subscribe-form button:hover {
            background: #d4b878;
            transform: translateY(-2px);
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #7a8a99;
        }
        .footer-copyright p { margin: 0; }
        .icp { color: #7a8a99; font-size: 13px; }

        /* ===== 返回顶部 ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(75, 124, 166, 0.35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.35s ease;
            z-index: 950;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .nav-links { gap: 16px; }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 768px) {
            .nav-links, .nav-btn { display: none; }
            .mobile-toggle { display: flex; }
            .site-nav {
                max-width: calc(100% - 32px);
                top: 12px;
            }
            .nav-inner { padding: 10px 14px 10px 20px; }
            .breadcrumb-wrap { padding-top: 88px; }
            .article-header h1 { font-size: 28px; }
            .article-container { padding: 32px 24px; }
            .article-nav-box { flex-direction: column; align-items: flex-start; }
            .prev-next { width: 100%; justify-content: space-between; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-box { padding: 32px 24px; flex-direction: column; text-align: center; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 44px;
                height: 44px;
            }
        }
        @media screen and (max-width: 640px) {
            .article-meta { flex-direction: column; gap: 10px; }
            .article-header { padding: 36px 0 28px; }
            .article-main { padding: 32px 0 24px; }
            .article-container { border-radius: 10px; padding: 24px 18px; }
            .article-content { font-size: 15px; }
            .article-content h2 { font-size: 20px; }
            .related-section { padding: 48px 0; }
            .cta-section { padding: 40px 0; }
        }

/* roulang page: category1 */
:root {
    --primary: #4B7CA6;
    --primary-dark: #3D688A;
    --accent: #C0A062;
    --dark: #233A4E;
    --text: #2F3B47;
    --text-secondary: #66788A;
    --text-light: #9AAEBC;
    --bg: #F5F7FA;
    --bg-alt: #EDF1F6;
    --card-bg: #FFFFFF;
    --border: #DDE4EB;
    --border-light: #E8EDF2;
    --shadow-sm: 0 2px 12px rgba(35,58,78,0.06);
    --shadow-md: 0 10px 30px rgba(35,58,78,0.10);
    --radius-lg: 14px;
    --radius-md: 8px;
    --radius-full: 999px;
    --transition: 0.3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: "PingFang SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; border: none; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== 导航 ========== */
.site-nav {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: 100%;
    max-width: 1100px;
    padding: 0 16px;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255,255,255,0.6);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 20px rgba(35,58,78,0.08);
    padding: 10px 18px;
    transition: box-shadow .3s ease;
}
.nav-inner:hover { box-shadow: 0 8px 30px rgba(35,58,78,0.12); }
.nav-logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: 1px;
    white-space: nowrap;
}
.nav-logo .dot {
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
    margin: 0 8px;
    display: inline-block;
}
.nav-logo .mil {
    font-family: "Inter", "Helvetica Neue", sans-serif;
    font-weight: 500;
    font-size: 15px;
    color: var(--text-light);
    letter-spacing: 2px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 4px;
    position: relative;
    transition: color .25s ease;
}
.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: width .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--primary); }
.nav-link.active::after { width: 100%; }
.nav-btn a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 9px 22px;
    border-radius: var(--radius-full);
    transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
    box-shadow: 0 2px 10px rgba(75,124,166,0.3);
}
.nav-btn a:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(75,124,166,0.35);
    color: #fff;
}
.mobile-toggle {
    display: none;
    background: none;
    font-size: 22px;
    color: var(--dark);
    padding: 6px;
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(245,247,250,0.97);
    z-index: 999;
    padding: 100px 40px 40px;
    flex-direction: column;
    gap: 24px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.mobile-menu.open { display: flex; }
.mobile-menu .mobile-nav-link {
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.mobile-menu .mobile-nav-link.active { color: var(--primary); }
.mobile-menu .mobile-cta {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    text-align: center;
    margin-top: 16px;
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-btn { display: none; }
    .mobile-toggle { display: block; }
    .site-nav { top: 10px; padding: 0 12px; }
    .nav-inner { padding: 8px 14px; }
    .nav-logo { font-size: 18px; }
}

/* ========== Hero ========== */
.page-hero {
    position: relative;
    background: linear-gradient(180deg, #F0F4F8 0%, #FFFFFF 100%);
    padding: 160px 0 80px;
    overflow: hidden;
}
.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.png') no-repeat center/cover;
    opacity: 0.18;
    z-index: 0;
}
.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(245,247,250,0.85) 0%, rgba(255,255,255,0.4) 100%);
    z-index: 1;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .hero-badge-row {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.page-hero .hero-badge {
    background: #F5E9D0;
    color: #A07B3F;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.page-hero .hero-badge i { font-size: 12px; }
.page-hero h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--dark);
    text-align: center;
    letter-spacing: 1px;
    line-height: 1.25;
    margin-bottom: 16px;
}
.page-hero .hero-sub {
    text-align: center;
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.7;
}
.page-hero .hero-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin: 0 auto 20px;
}
.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: var(--radius-md);
    border: 2px solid var(--primary);
    transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(75,124,166,0.3);
    color: #fff;
}
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: var(--radius-md);
    border: 2px solid var(--primary);
    transition: background .25s ease, transform .25s ease;
}
.btn-secondary:hover {
    background: var(--bg-alt);
    transform: translateY(-2px);
    color: var(--primary-dark);
}

/* ========== 品牌介绍 ========== */
.brand-intro {
    padding: 100px 0;
    background: var(--bg);
}
.brand-intro .container { display: flex; gap: 48px; align-items: flex-start; }
.brand-intro-text { flex: 0 0 66.666%; }
.brand-intro-text h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.brand-intro-text .section-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin-bottom: 28px;
}
.brand-intro-text p {
    font-size: 16px;
    color: var(--text);
    line-height: 1.85;
    margin-bottom: 20px;
}
.brand-intro-card {
    flex: 0 0 33.333%;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 32px;
    position: sticky;
    top: 100px;
}
.brand-intro-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.brand-intro-card h3 i { color: var(--accent); font-size: 18px; }
.brand-intro-card .info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}
.brand-intro-card .info-item:last-child { border-bottom: none; }
.brand-intro-card .info-item i {
    color: var(--accent);
    font-size: 15px;
    margin-top: 4px;
    width: 20px;
    text-align: center;
}
.brand-intro-card .info-item .label {
    font-size: 13px;
    color: var(--text-light);
    display: block;
    margin-bottom: 2px;
}
.brand-intro-card .info-item .value {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
}
@media (max-width: 1024px) {
    .brand-intro .container { flex-direction: column; }
    .brand-intro-text, .brand-intro-card { flex: 1 1 100%; }
    .brand-intro-card { position: static; }
}

/* ========== 图集区 ========== */
.brand-gallery {
    padding: 100px 0;
    background: var(--bg-alt);
}
.brand-gallery .section-head {
    text-align: center;
    margin-bottom: 48px;
}
.brand-gallery .section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
}
.brand-gallery .section-head .section-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin: 12px auto 0;
}
.gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
    background: #fff;
}
.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.gallery-item img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}
.gallery-item .gallery-caption {
    padding: 16px 24px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
}
@media (max-width: 640px) {
    .gallery-grid { grid-template-columns: 1fr; }
}

/* ========== 核心价值 ========== */
.brand-values {
    padding: 100px 0;
    background: var(--bg);
}
.brand-values .section-head {
    text-align: center;
    margin-bottom: 48px;
}
.brand-values .section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
}
.brand-values .section-head .section-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin: 12px auto 0;
}
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.value-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
}
.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.value-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(75,124,166,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    transition: background .3s ease;
}
.value-icon i { color: var(--primary); font-size: 20px; }
.value-card:hover .value-icon { background: #F5E9D0; }
.value-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}
.value-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}
@media (max-width: 1024px) {
    .values-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .values-grid { grid-template-columns: 1fr; }
}

/* ========== 适用场景 ========== */
.brand-scenes {
    padding: 100px 0;
    background: var(--bg-alt);
}
.brand-scenes .section-head {
    text-align: center;
    margin-bottom: 48px;
}
.brand-scenes .section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
}
.brand-scenes .section-head .section-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin: 12px auto 0;
}
.scenes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.scene-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
}
.scene-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.scene-card .scene-num {
    font-family: "Inter", sans-serif;
    font-size: 32px;
    font-weight: 800;
    color: rgba(75,124,166,0.15);
    line-height: 1;
    margin-bottom: 12px;
}
.scene-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.scene-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}
@media (max-width: 1024px) {
    .scenes-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .scenes-grid { grid-template-columns: 1fr; }
}

/* ========== 服务流程 ========== */
.brand-process {
    padding: 100px 0;
    background: var(--bg);
}
.brand-process .section-head {
    text-align: center;
    margin-bottom: 48px;
}
.brand-process .section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
}
.brand-process .section-head .section-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin: 12px auto 0;
}
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}
.process-steps::before {
    content: "";
    position: absolute;
    top: 32px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: var(--border);
    z-index: 0;
}
.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
    background: var(--bg);
    padding: 0 8px;
}
.process-step .step-circle {
    width: 64px;
    height: 64px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Inter", sans-serif;
    font-size: 22px;
    font-weight: 700;
    margin: 0 auto 16px;
    box-shadow: 0 4px 16px rgba(75,124,166,0.3);
    border: 3px solid #fff;
}
.process-step:nth-child(2) .step-circle { background: var(--accent); box-shadow: 0 4px 16px rgba(192,160,98,0.3); }
.process-step:nth-child(3) .step-circle { background: var(--primary-dark); }
.process-step h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.process-step p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}
@media (max-width: 1024px) {
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .process-steps::before { display: none; }
}
@media (max-width: 640px) {
    .process-steps { grid-template-columns: 1fr; }
}

/* ========== FAQ ========== */
.faq-section {
    padding: 100px 0;
    background: var(--bg-alt);
}
.faq-section .section-head {
    text-align: center;
    margin-bottom: 48px;
}
.faq-section .section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
}
.faq-section .section-head .section-line {
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    margin: 12px auto 0;
}
.faq-accordion {
    max-width: 820px;
    margin: 0 auto;
}
.faq-accordion .accordion-item {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
}
.faq-accordion .accordion-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    padding: 22px 40px 22px 0;
    position: relative;
    transition: color .25s ease;
}
.faq-accordion .accordion-title:hover { color: var(--primary); }
.faq-accordion .accordion-title::after {
    content: "\f054";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 14px;
    color: var(--text-light);
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    transition: transform .3s ease, color .3s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::after {
    transform: translateY(-50%) rotate(90deg);
    color: var(--accent);
}
.faq-accordion .accordion-content {
    padding: 0 40px 22px 0;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
    background: transparent;
}
.faq-note {
    text-align: center;
    margin-top: 32px;
    font-size: 15px;
    color: var(--text-secondary);
}
.faq-note a {
    color: var(--primary);
    font-weight: 600;
    border-bottom: 1px solid var(--primary);
    padding-bottom: 1px;
}

/* ========== CTA ========== */
.cta-section {
    padding: 80px 0;
    background: #E8EFF6;
}
.cta-box {
    background: var(--primary);
    border-radius: var(--radius-lg);
    padding: 48px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    box-shadow: 0 10px 40px rgba(75,124,166,0.25);
}
.cta-box h2 {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
}
.cta-box p {
    font-size: 15px;
    color: rgba(255,255,255,0.85);
}
.cta-box .btn-cta {
    background: #fff;
    color: var(--primary);
    font-size: 15px;
    font-weight: 700;
    padding: 14px 34px;
    border-radius: var(--radius-md);
    transition: transform .25s ease, box-shadow .25s ease;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.cta-box .btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.18);
    color: var(--primary-dark);
}
@media (max-width: 640px) {
    .cta-box { padding: 32px 24px; text-align: center; justify-content: center; }
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--dark);
    color: #9AAEBC;
    padding: 60px 0 0;
    font-size: 14px;
}
.site-footer .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-brand-name {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}
.footer-brand-name .dot {
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
    margin: 0 8px;
    display: inline-block;
}
.footer-brand-desc {
    font-size: 14px;
    color: #9AAEBC;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 280px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9AAEBC;
    transition: background .25s ease, color .25s ease;
}
.footer-social a:hover {
    background: var(--accent);
    color: #fff;
}
.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul li a {
    color: #9AAEBC;
    font-size: 14px;
    transition: color .25s ease;
}
.footer-col ul li a:hover { color: #fff; }
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    color: #9AAEBC;
    font-size: 14px;
    line-height: 1.7;
}
.footer-contact i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 13px;
    width: 16px;
}
.footer-subscribe-form {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}
.footer-subscribe-form input {
    flex: 1;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-size: 14px;
    outline: none;
    transition: border-color .25s ease;
}
.footer-subscribe-form input::placeholder { color: rgba(255,255,255,0.4); }
.footer-subscribe-form input:focus {
    border-color: var(--accent);
    border-width: 2px;
    padding: 9px 13px;
}
.footer-subscribe-form button {
    background: var(--accent);
    color: var(--dark);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: background .25s ease;
    flex-shrink: 0;
}
.footer-subscribe-form button:hover { background: #D4B077; }
.footer-copyright {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: rgba(255,255,255,0.5);
}
.footer-copyright .icp { font-size: 12px; }
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .footer-grid { grid-template-columns: 1fr; }
    .footer-copyright { flex-direction: column; text-align: center; }
}

/* ========== 响应式辅助 ========== */
@media (max-width: 1024px) {
    .page-hero h1 { font-size: 34px; }
    .brand-intro-text, .brand-intro-card { flex: 1 1 100%; }
    .brand-intro-card { position: static; }
}
@media (max-width: 640px) {
    .page-hero { padding: 120px 0 56px; }
    .page-hero h1 { font-size: 28px; line-height: 1.3; }
    .page-hero .hero-sub { font-size: 15px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
    .brand-intro, .brand-gallery, .brand-values, .brand-scenes, .brand-process, .faq-section, .cta-section { padding: 60px 0; }
    .brand-intro-text h2, .brand-gallery .section-head h2, .brand-values .section-head h2, .brand-scenes .section-head h2, .brand-process .section-head h2, .faq-section .section-head h2 { font-size: 24px; }
    .cta-box { padding: 28px 20px; }
    .cta-box h2 { font-size: 22px; }
}

/* roulang page: category2 */
:root{
    --primary:#4B7CA6;
    --primary-dark:#3D688A;
    --accent:#C0A062;
    --accent-dark:#A07B3F;
    --accent-bg:#F5E9D0;
    --deep:#233A4E;
    --body-text:#2F3B47;
    --secondary-text:#66788A;
    --light-gray:#9AAEBC;
    --bg:#F5F7FA;
    --card-bg:#FFFFFF;
    --alt-bg:#EDF1F6;
    --border:#DDE4EB;
    --divider:#E8EDF2;
    --shadow-sm:0 2px 12px rgba(35,58,78,0.06);
    --shadow-md:0 10px 30px rgba(35,58,78,0.10);
    --shadow-nav:0 4px 20px rgba(35,58,78,0.08);
    --radius-card:14px;
    --radius-btn:8px;
    --radius-pill:999px;
    --font-main:"PingFang SC","Source Han Sans CN","Microsoft YaHei",sans-serif;
    --font-en:"Inter","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-main);
    font-size:16px;
    line-height:1.75;
    color:var(--body-text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--accent-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.gold-line{width:40px;height:4px;background:var(--accent);border-radius:2px;margin:14px 0}

/* ===== Buttons ===== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border:none;border-radius:var(--radius-btn);
    padding:12px 28px;font-size:15px;font-weight:600;cursor:pointer;
    transition:all .25s ease;line-height:1.4;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(75,124,166,0.25)}
.btn-secondary{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-secondary:hover{background:var(--alt-bg);color:var(--primary-dark);transform:translateY(-2px)}
.btn-gold{background:var(--accent);color:#fff}
.btn-gold:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(192,160,98,0.3)}

/* ===== Badges ===== */
.badge{
    display:inline-block;background:var(--accent-bg);color:var(--accent-dark);
    border-radius:var(--radius-pill);padding:4px 12px;font-size:12px;font-weight:600;
    letter-spacing:.5px;
}

/* ===== Section common ===== */
.section{padding:100px 0}
.section-alt{background:var(--alt-bg)}
.section-title{
    font-size:30px;line-height:1.3;color:var(--deep);font-weight:700;
    margin-bottom:8px;
}
.section-sub{
    font-size:15px;color:var(--secondary-text);margin-bottom:20px;max-width:640px;
}
.section-head{margin-bottom:48px}

/* ===== Nav ===== */
.site-nav{
    position:fixed;top:16px;left:50%;transform:translateX(-50%);
    z-index:1000;width:calc(100% - 32px);max-width:1100px;
    background:rgba(255,255,255,0.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-radius:var(--radius-pill);
    border:1px solid var(--divider);
    box-shadow:var(--shadow-nav);
    padding:10px 28px;
}
.nav-inner{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.nav-logo{
    display:flex;align-items:center;gap:8px;
    font-size:20px;font-weight:700;color:var(--deep);font-family:var(--font-main);
    white-space:nowrap;
}
.nav-logo .dot{
    width:6px;height:6px;background:var(--accent);border-radius:50%;display:inline-block;
}
.nav-logo .mil{
    font-family:var(--font-en);font-weight:500;font-size:15px;color:var(--secondary-text);
    letter-spacing:1px;
}
.nav-links{
    display:flex;align-items:center;gap:8px;
}
.nav-link{
    font-size:14px;color:var(--body-text);font-weight:500;
    padding:8px 12px;border-radius:var(--radius-pill);
    transition:all .25s ease;white-space:nowrap;
}
.nav-link:hover{
    color:var(--primary);background:var(--alt-bg);
}
.nav-link.active{
    color:var(--primary-dark);background:var(--accent-bg);
    font-weight:600;
}
.nav-btn a{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--primary);color:#fff;
    border-radius:var(--radius-pill);
    padding:10px 22px;font-size:14px;font-weight:600;
    transition:all .25s ease;
}
.nav-btn a:hover{
    background:var(--primary-dark);color:#fff;transform:translateY(-1px);
    box-shadow:0 6px 16px rgba(75,124,166,0.3);
}
.mobile-toggle{
    display:none;background:none;border:none;font-size:20px;color:var(--deep);
    width:42px;height:42px;border-radius:50%;
    align-items:center;justify-content:center;
    transition:background .25s ease;
}
.mobile-toggle:hover{background:var(--alt-bg)}

/* ===== Page Hero ===== */
.page-hero{
    position:relative;
    padding:200px 0 100px;
    background:
        linear-gradient(rgba(245,247,250,0.88),rgba(255,255,255,0.94)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    text-align:center;
    border-bottom:1px solid var(--divider);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
    font-size:34px;line-height:1.25;color:var(--deep);
    font-weight:700;margin-bottom:12px;
    letter-spacing:1px;
}
.page-hero .gold-line{
    margin:16px auto 18px;
    width:48px;height:4px;background:var(--accent);border-radius:2px;
}
.page-hero-desc{
    font-size:17px;color:var(--secondary-text);
    max-width:660px;margin:0 auto 20px;
    line-height:1.7;
}
.breadcrumb{
    font-size:13px;color:var(--light-gray);margin-top:16px;
    display:flex;align-items:center;justify-content:center;gap:6px;
    flex-wrap:wrap;
}
.breadcrumb a{color:var(--light-gray);transition:color .25s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--secondary-text)}

/* ===== Intro ===== */
.intro-section{padding:100px 0;background:var(--bg)}
.intro-wrap{
    display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:center;
}
.intro-copy p{
    font-size:16px;line-height:1.85;color:var(--body-text);
    margin-bottom:18px;
}
.intro-copy p:last-child{margin-bottom:0}
.intro-media{
    border-radius:var(--radius-card);overflow:hidden;
    box-shadow:var(--shadow-sm);transition:box-shadow .3s ease;
}
.intro-media:hover{box-shadow:var(--shadow-md)}
.intro-media img{
    width:100%;height:100%;object-fit:cover;
    aspect-ratio:4/3;border-radius:var(--radius-card);
}

/* ===== News Cards 2x2 ===== */
.news-section{padding:100px 0;background:var(--alt-bg)}
.news-grid{
    display:grid;grid-template-columns:1fr 1fr;gap:32px;
}
.news-card{
    background:var(--card-bg);border-radius:var(--radius-card);
    overflow:hidden;border:1px solid var(--border);
    box-shadow:var(--shadow-sm);
    transition:all .3s ease;
    display:flex;flex-direction:column;
}
.news-card:hover{
    transform:translateY(-4px);box-shadow:var(--shadow-md);
    border-color:var(--primary);
}
.news-card-cover{
    position:relative;overflow:hidden;aspect-ratio:16/10;
}
.news-card-cover img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .4s ease;
}
.news-card:hover .news-card-cover img{transform:scale(1.05)}
.news-card-cover .badge{
    position:absolute;top:16px;left:16px;
    background:rgba(255,255,255,0.92);
    box-shadow:0 2px 8px rgba(35,58,78,0.1);
}
.news-card-body{
    padding:24px 28px 28px;display:flex;flex-direction:column;flex:1;
}
.news-card-meta{
    display:flex;align-items:center;gap:10px;
    font-size:13px;color:var(--light-gray);margin-bottom:10px;
}
.news-card-meta i{color:var(--accent);font-size:12px}
.news-card-title{
    font-size:18px;font-weight:700;color:var(--deep);
    line-height:1.4;margin-bottom:10px;
    transition:color .25s ease;
}
.news-card:hover .news-card-title{color:var(--primary)}
.news-card-desc{
    font-size:14px;color:var(--secondary-text);line-height:1.7;
    flex:1;margin-bottom:16px;
}
.news-card-link{
    font-size:14px;font-weight:600;color:var(--primary);
    display:inline-flex;align-items:center;gap:6px;
    margin-top:auto;transition:gap .25s ease;
}
.news-card-link:hover{gap:10px;color:var(--accent-dark)}

/* ===== Features ===== */
.feature-section{padding:100px 0;background:var(--bg)}
.feature-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.feature-card{
    background:var(--card-bg);border-radius:var(--radius-card);
    border:1px solid var(--border);box-shadow:var(--shadow-sm);
    padding:32px 28px;transition:all .3s ease;
}
.feature-card:hover{
    transform:translateY(-4px);box-shadow:var(--shadow-md);
    border-color:var(--accent);
}
.feature-icon{
    width:48px;height:48px;border-radius:12px;
    background:rgba(75,124,166,0.1);
    display:flex;align-items:center;justify-content:center;
    margin-bottom:20px;transition:background .3s ease;
}
.feature-icon i{font-size:20px;color:var(--primary)}
.feature-card:hover .feature-icon{background:var(--accent-bg)}
.feature-card:hover .feature-icon i{color:var(--accent-dark)}
.feature-card h3{
    font-size:18px;font-weight:700;color:var(--deep);
    margin-bottom:10px;
}
.feature-card p{
    font-size:14px;color:var(--secondary-text);line-height:1.7;
}
.feature-more{
    display:inline-block;margin-top:14px;font-size:13px;font-weight:600;
    color:var(--primary);transition:color .25s;
}
.feature-more:hover{color:var(--accent-dark)}

/* ===== Scenarios ===== */
.scenario-section{padding:100px 0;background:var(--alt-bg)}
.scenario-grid{
    display:grid;grid-template-columns:repeat(2,1fr);gap:40px;
}
.scenario-block{
    display:flex;flex-direction:column;
    background:var(--card-bg);border-radius:var(--radius-card);
    border:1px solid var(--border);box-shadow:var(--shadow-sm);
    overflow:hidden;transition:all .3s ease;
}
.scenario-block:hover{
    transform:translateY(-4px);box-shadow:var(--shadow-md);
}
.scenario-img{
    aspect-ratio:16/9;overflow:hidden;
}
.scenario-img img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .4s ease;
}
.scenario-block:hover .scenario-img img{transform:scale(1.04)}
.scenario-body{padding:28px 32px 32px}
.scenario-body h3{
    font-size:20px;font-weight:700;color:var(--deep);
    margin-bottom:12px;
}
.scenario-body p{
    font-size:15px;color:var(--secondary-text);line-height:1.75;
}

/* ===== Process ===== */
.process-section{padding:100px 0;background:var(--bg)}
.process-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
    counter-reset:process;
}
.process-step{
    position:relative;text-align:center;
    padding:36px 24px 32px;
    background:var(--card-bg);border-radius:var(--radius-card);
    border:1px solid var(--border);box-shadow:var(--shadow-sm);
    transition:all .3s ease;
}
.process-step:hover{
    transform:translateY(-4px);box-shadow:var(--shadow-md);
    border-color:var(--accent);
}
.process-num{
    width:44px;height:44px;border-radius:50%;
    background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:700;font-family:var(--font-en);
    margin:0 auto 18px;
}
.process-step h3{
    font-size:17px;font-weight:700;color:var(--deep);
    margin-bottom:10px;
}
.process-step p{
    font-size:14px;color:var(--secondary-text);line-height:1.7;
}

/* ===== FAQ ===== */
.faq-section{padding:100px 0;background:var(--alt-bg)}
.faq-wrap{max-width:820px;margin:0 auto}
.accordion{
    background:transparent;border:none;margin:0;
}
.accordion-item{
    background:var(--card-bg);
    border-radius:var(--radius-card);
    border:1px solid var(--border);
    margin-bottom:16px;
    overflow:hidden;
    transition:box-shadow .3s ease;
}
.accordion-item.is-active{
    border-color:var(--accent);
    box-shadow:var(--shadow-sm);
}
.accordion-title{
    font-size:16px;font-weight:600;color:var(--deep);
    padding:20px 24px;
    display:flex;align-items:center;justify-content:space-between;
    border:none;background:transparent;
    line-height:1.5;
}
.accordion-title:hover{
    background:var(--alt-bg);color:var(--primary);
}
.accordion-title::after{
    content:'\f107';
    font-family:'Font Awesome 6 Free';
    font-weight:900;
    color:var(--light-gray);
    font-size:16px;
    transition:transform .3s ease,color .3s ease;
    margin-left:12px;
}
.accordion-item.is-active .accordion-title::after{
    transform:rotate(180deg);
    color:var(--accent);
}
.accordion-content{
    padding:0 24px 20px;
    font-size:15px;line-height:1.7;color:var(--secondary-text);
}
.accordion-content p{margin-bottom:8px}
.faq-more{
    text-align:center;margin-top:36px;
    font-size:15px;color:var(--secondary-text);
}
.faq-more a{
    font-weight:600;color:var(--primary);
    border-bottom:1px dashed var(--primary);
    transition:color .25s;
}
.faq-more a:hover{color:var(--accent-dark);border-color:var(--accent-dark)}

/* ===== CTA ===== */
.cta-section{
    padding:80px 0;
    background:
        linear-gradient(rgba(237,241,246,0.92),rgba(237,241,246,0.92)),
        url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.cta-box{
    background:var(--card-bg);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-md);
    padding:48px 56px;
    display:flex;align-items:center;justify-content:space-between;
    gap:40px;flex-wrap:wrap;
    border:1px solid var(--border);
}
.cta-box h2{
    font-size:24px;font-weight:700;color:var(--deep);
    margin-bottom:8px;
}
.cta-box p{
    font-size:15px;color:var(--secondary-text);
}
.cta-box .btn{
    flex-shrink:0;
    padding:14px 34px;
}

/* ===== Footer ===== */
.site-footer{
    background:var(--deep);
    padding:60px 0 0;
    color:rgba(255,255,255,0.75);
}
.footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:40px;padding-bottom:40px;
}
.footer-brand-name{
    font-size:20px;font-weight:700;color:#fff;
    display:flex;align-items:center;gap:8px;
    margin-bottom:14px;
}
.footer-brand-name .dot{
    width:6px;height:6px;background:var(--accent);
    border-radius:50%;display:inline-block;
}
.footer-brand-desc{
    font-size:14px;line-height:1.7;
    color:var(--light-gray);
    margin-bottom:20px;max-width:280px;
}
.footer-social{
    display:flex;gap:12px;
}
.footer-social a{
    width:36px;height:36px;border-radius:50%;
    background:rgba(255,255,255,0.1);
    display:flex;align-items:center;justify-content:center;
    color:var(--light-gray);font-size:14px;
    transition:all .25s ease;
}
.footer-social a:hover{
    background:var(--accent);color:#fff;
    transform:translateY(-2px);
}
.footer-title{
    font-size:15px;font-weight:700;color:#fff;
    margin-bottom:18px;letter-spacing:.5px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
    font-size:14px;color:var(--light-gray);
    transition:color .25s ease;
}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{
    font-size:14px;color:var(--light-gray);
    display:flex;align-items:flex-start;gap:10px;
    margin-bottom:12px;
}
.footer-contact li i{
    color:var(--accent);font-size:14px;
    margin-top:5px;
}
.footer-subscribe-form{
    display:flex;gap:10px;
}
.footer-subscribe-form input{
    flex:1;min-width:0;
    padding:12px 16px;
    border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,0.2);
    background:rgba(255,255,255,0.08);
    color:#fff;font-size:14px;
    outline:none;transition:all .25s ease;
}
.footer-subscribe-form input::placeholder{color:var(--light-gray)}
.footer-subscribe-form input:focus{
    border-color:var(--accent);
    box-shadow:0 0 0 2px rgba(192,160,98,0.2);
    background:rgba(255,255,255,0.12);
}
.footer-subscribe-form button{
    width:46px;height:46px;flex-shrink:0;
    border-radius:var(--radius-btn);
    background:var(--accent);border:none;
    color:#fff;font-size:16px;
    transition:all .25s ease;
    display:flex;align-items:center;justify-content:center;
}
.footer-subscribe-form button:hover{
    background:var(--accent-dark);
    transform:translateY(-2px);
}
.footer-copyright{
    border-top:1px solid rgba(255,255,255,0.1);
    padding:20px 0;
    display:flex;align-items:center;justify-content:space-between;
    flex-wrap:wrap;gap:8px;
}
.footer-copyright p{
    font-size:13px;color:var(--light-gray);
}
.footer-copyright .icp{
    font-size:12px;color:var(--light-gray);
}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
    .feature-grid{
        grid-template-columns:repeat(2,1fr);
        gap:20px;
    }
    .process-grid{
        grid-template-columns:repeat(2,1fr);
        gap:20px;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
        gap:32px;
    }
    .news-grid{
        gap:24px;
    }
}

@media screen and (max-width:768px){
    .site-nav{
        top:12px;
        width:calc(100% - 24px);
        padding:8px 20px;
    }
    .nav-links{
        display:none;
        position:fixed;
        top:0;left:0;right:0;
        background:rgba(245,247,250,0.98);
        backdrop-filter:blur(20px);
        flex-direction:column;
        align-items:center;
        justify-content:center;
        gap:12px;
        padding:80px 24px 40px;
        border-radius:0;
        box-shadow:var(--shadow-md);
        z-index:999;
    }
    .nav-links.open{
        display:flex;
    }
    .nav-links .nav-link{
        font-size:18px;
        padding:12px 24px;
    }
    .nav-btn{
        display:none;
    }
    .mobile-toggle{
        display:flex;
    }
    .section{padding:60px 0}
    .page-hero{padding:160px 0 60px}
    .page-hero h1{font-size:28px}
    .intro-wrap{
        grid-template-columns:1fr;
        gap:32px;
    }
    .news-grid{
        grid-template-columns:1fr;
    }
    .feature-grid{
        grid-template-columns:1fr;
    }
    .scenario-grid{
        grid-template-columns:1fr;
        gap:24px;
    }
    .process-grid{
        grid-template-columns:1fr;
    }
    .cta-box{
        padding:32px 24px;
        flex-direction:column;
        text-align:center;
        gap:20px;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
    }
    .footer-copyright{
        flex-direction:column;
        text-align:center;
    }
    .footer-subscribe-form{
        flex-direction:column;
    }
    .footer-subscribe-form button{
        width:100%;
    }
}

@media screen and (max-width:520px){
    .container{padding:0 16px}
    .nav-logo{font-size:18px}
    .nav-logo .mil{font-size:13px}
    .news-card-body{padding:20px 20px 24px}
    .news-card-title{font-size:16px}
    .cta-box h2{font-size:20px}
    .btn{width:100%}
}