/* roulang page: index */
:root {
            --color-primary: #0D7A70;
            --color-primary-deep: #083E38;
            --color-accent: #E2622B;
            --color-bg: #F4F8F6;
            --color-surface: #FFFFFF;
            --color-text: #17312E;
            --color-muted: #5C706D;
            --color-line: #DBE6E2;
            --radius-card: 14px;
            --radius-btn: 8px;
            --shadow-default: 0 1px 2px rgba(23,49,46,.06);
            --shadow-hover: 0 8px 24px rgba(23,49,46,.08);
            --space-section-desktop: 96px;
            --space-section-mobile: 60px;
            --content-max: 1200px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-main);
            background: var(--color-bg);
            color: var(--color-text);
            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-deep); }
        ul, ol { list-style: none; }
        .container { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; }
        .section-pad { padding: var(--space-section-desktop) 0; }
        .text-center { text-align: center; }
        .muted { color: var(--color-muted); }

        h1, h2, h3, h4 { font-family: var(--font-main); line-height: 1.3; color: var(--color-text); }
        h1 { font-size: clamp(34px, 4vw, 44px); font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; }
        h2 { font-size: clamp(26px, 2.6vw, 32px); font-weight: 700; letter-spacing: -0.01em; }
        h3 { font-size: 21px; font-weight: 600; }
        .section-head { margin-bottom: 44px; max-width: 760px; }
        .section-head .section-tag { display: inline-block; background: rgba(13,122,112,.08); color: var(--color-primary); font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 30px; margin-bottom: 16px; letter-spacing: .06em; }
        .section-head h2 { margin-bottom: 14px; }
        .section-head p { color: var(--color-muted); font-size: 17px; }

        /* Buttons */
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 28px; border: none; border-radius: var(--radius-btn); font-size: 15px; font-weight: 600; font-family: var(--font-main); cursor: pointer; transition: background .2s ease, transform .2s ease, box-shadow .2s ease; }
        .btn:focus-visible { outline: 3px solid rgba(13,122,112,.4); outline-offset: 2px; }
        .btn-primary { background: var(--color-accent); color: #fff; }
        .btn-primary:hover { background: #c7521f; color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(226,98,43,.22); }
        .btn-secondary { background: var(--color-primary); color: #fff; }
        .btn-secondary:hover { background: var(--color-primary-deep); color: #fff; transform: translateY(-2px); }
        .btn-ghost { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); }
        .btn-ghost:hover { background: rgba(13,122,112,.06); border-color: var(--color-primary-deep); transform: translateY(-2px); }
        .btn-light { background: #fff; color: var(--color-primary-deep); }
        .btn-light:hover { background: #e8f2ef; color: var(--color-primary-deep); transform: translateY(-2px); }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-line);
        }
        .site-header .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .brand-logo { display: flex; align-items: center; gap: 10px; }
        .brand-logo .logo-mark { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--color-primary-deep); color: #fff; font-size: 15px; font-weight: 800; border-radius: 10px; letter-spacing: .03em; }
        .brand-logo .logo-text { display: flex; flex-direction: column; line-height: 1.1; }
        .brand-logo .logo-text .logo-top { font-size: 13px; font-weight: 700; color: var(--color-muted); letter-spacing: .1em; }
        .brand-logo .logo-text .logo-bottom { font-size: 19px; font-weight: 800; color: var(--color-text); letter-spacing: .02em; }
        .brand-logo:hover .logo-text .logo-bottom { color: var(--color-primary); }
        .main-nav { display: flex; align-items: center; gap: 34px; }
        .main-nav .nav-item { font-size: 16px; font-weight: 500; color: var(--color-text); position: relative; padding: 24px 0; }
        .main-nav .nav-item:hover, .main-nav .nav-item.active { color: var(--color-primary); }
        .main-nav .nav-item.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 12px; height: 3px; background: var(--color-accent); border-radius: 3px; }
        .header-cta { display: flex; align-items: center; gap: 12px; }
        .header-cta .status-chip { font-size: 13px; padding: 6px 14px; background: rgba(13,122,112,.08); color: var(--color-primary); border-radius: 30px; font-weight: 600; white-space: nowrap; }
        .header-cta .status-chip i { margin-right: 4px; }
        .header-cta .btn { min-height: 40px; padding: 0 20px; font-size: 14px; }
        .menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--color-text); cursor: pointer; width: 44px; height: 44px; align-items: center; justify-content: center; }
        .mobile-nav { display: none; background: #fff; border-bottom: 1px solid var(--color-line); padding: 16px 0; }
        .mobile-nav .nav-item { display: block; text-align: center; padding: 12px 0; border-bottom: 1px solid rgba(219,230,226,.6); }
        .mobile-nav .nav-item:last-child { border-bottom: none; }
        .mobile-nav .mobile-cta { text-align: center; margin-top: 12px; }

        /* Hero Section */
        .hero-section { position: relative; min-height: 90vh; display: flex; align-items: center; overflow: hidden; background: linear-gradient(135deg, #eef5f2 0%, #f7faf9 60%, #edf3f1 100%); }
        .hero-section::before { content: ""; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('/assets/images/backpic/back-1.webp') no-repeat center right / cover; opacity: .16; z-index: 1; }
        .hero-section .hero-content { position: relative; z-index: 2; width: 100%; padding: 80px 0; }
        .hero-section .hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
        .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.8); border: 1px solid var(--color-line); padding: 6px 14px; border-radius: 30px; font-size: 13px; color: var(--color-primary-deep); font-weight: 600; box-shadow: var(--shadow-default); margin-bottom: 24px; }
        .hero-badge i { color: var(--color-accent); }
        .hero-title { margin-bottom: 22px; }
        .hero-title .highlight { color: var(--color-primary); position: relative; }
        .hero-subtitle { font-size: 20px; color: var(--color-muted); margin-bottom: 26px; line-height: 1.7; max-width: 520px; }
        .hero-desc { font-size: 16px; color: var(--color-text); opacity: .85; margin-bottom: 36px; line-height: 1.8; max-width: 540px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
        .hero-note { margin-top: 24px; font-size: 14px; color: var(--color-muted); display: flex; align-items: center; gap: 8px; }
        .hero-note i { color: var(--color-primary); }
        .hero-visual { position: relative; }
        .hero-visual .visual-card { background: var(--color-surface); border-radius: var(--radius-card); box-shadow: var(--shadow-hover); overflow: hidden; border: 1px solid rgba(219,230,226,.5); }
        .hero-visual .visual-card img { width: 100%; height: auto; object-fit: cover; aspect-ratio: 4/3; }
        .hero-visual .visual-card .visual-caption { padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; }
        .visual-caption .caption-label { font-size: 14px; font-weight: 600; color: var(--color-text); }
        .visual-caption .caption-sub { font-size: 13px; color: var(--color-muted); }
        .visual-float { position: absolute; bottom: -22px; left: -18px; background: var(--color-primary-deep); color: #fff; padding: 14px 22px; border-radius: 12px; display: flex; align-items: center; gap: 12px; box-shadow: 0 10px 28px rgba(8,62,56,.28); }
        .visual-float i { font-size: 22px; color: #7fd1c4; }
        .visual-float .float-num { font-size: 24px; font-weight: 800; line-height: 1; }
        .visual-float .float-txt { font-size: 13px; opacity: .85; }

        /* Quick Feature Cards */
        .feature-strip { padding: 40px 0; margin-top: -20px; position: relative; z-index: 5; }
        .feature-strip .grid-x { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .feature-card { background: var(--color-surface); border-radius: var(--radius-card); padding: 28px; box-shadow: var(--shadow-default); transition: transform .25s ease, box-shadow .25s ease; }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .feature-card .feature-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(13,122,112,.1); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-size: 20px; margin-bottom: 18px; }
        .feature-card:nth-child(2) .feature-icon { background: rgba(226,98,43,.1); color: var(--color-accent); }
        .feature-card:nth-child(3) .feature-icon { background: rgba(8,62,56,.1); color: var(--color-primary-deep); }
        .feature-card h3 { margin-bottom: 10px; font-size: 18px; }
        .feature-card p { font-size: 14px; color: var(--color-muted); line-height: 1.7; }

        /* Gameplay Showcase */
        .showcase-section { background: var(--color-primary-deep); color: #fff; overflow: hidden; }
        .showcase-section .showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
        .showcase-section h2 { color: #fff; margin-bottom: 18px; }
        .showcase-section .section-desc { color: rgba(255,255,255,.75); font-size: 16px; line-height: 1.85; margin-bottom: 30px; }
        .showcase-points { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }
        .showcase-point { display: flex; align-items: flex-start; gap: 14px; }
        .showcase-point i { color: #59d4c2; font-size: 16px; line-height: 1.8; }
        .showcase-point span { font-size: 15px; color: rgba(255,255,255,.85); }
        .showcase-media { position: relative; border-radius: var(--radius-card); overflow: hidden; box-shadow: 0 20px 48px rgba(0,0,0,.25); }
        .showcase-media img { width: 100%; object-fit: cover; aspect-ratio: 16/9; }
        .showcase-media .play-overlay { position: absolute; inset: 0; background: rgba(8,62,56,.35); display: flex; align-items: center; justify-content: center; }
        .showcase-media .play-overlay .play-btn { width: 70px; height: 70px; background: rgba(255,255,255,.92); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--color-primary-deep); font-size: 26px; cursor: pointer; transition: transform .2s ease; }
        .showcase-media .play-overlay .play-btn:hover { transform: scale(1.12); }

        /* Trust Stats */
        .trust-section { background: var(--color-surface); }
        .trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-bottom: 48px; }
        .trust-item { text-align: center; padding: 20px 16px; border-right: 1px solid var(--color-line); }
        .trust-item:last-child { border-right: none; }
        .trust-item .trust-num { font-size: 44px; font-weight: 800; color: var(--color-primary); line-height: 1.2; }
        .trust-item .trust-num span { font-size: 18px; font-weight: 600; margin-left: 4px; }
        .trust-item .trust-label { font-size: 14px; color: var(--color-muted); margin-top: 8px; letter-spacing: .04em; }
        .trust-note { display: flex; justify-content: center; align-items: center; gap: 12px; }
        .trust-note .chip-icon { width: 44px; height: 44px; border-radius: 50%; background: rgba(226,98,43,.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
        .trust-note p { max-width: 680px; font-size: 15px; color: var(--color-muted); line-height: 1.65; text-align: left; }

        /* News & Info */
        .news-section { background: var(--color-bg); }
        .news-list { display: flex; flex-direction: column; gap: 14px; }
        .news-item { background: var(--color-surface); border-radius: 12px; padding: 24px 28px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 24px; border-left: 3px solid transparent; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; box-shadow: var(--shadow-default); border-left: 3px solid var(--color-primary); }
        .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-hover); }
        .news-item .news-title { font-size: 17px; font-weight: 600; color: var(--color-text); margin-bottom: 4px; line-height: 1.5; }
        .news-item:hover .news-title { color: var(--color-primary); }
        .news-item .news-excerpt { font-size: 14px; color: var(--color-muted); line-height: 1.6; margin-bottom: 8px; }
        .news-item .news-meta { display: flex; gap: 14px; font-size: 13px; color: var(--color-muted); align-items: center; }
        .news-item .news-meta .news-cat { background: rgba(13,122,112,.08); color: var(--color-primary); padding: 2px 10px; border-radius: 20px; font-weight: 600; }
        .news-item .news-meta .news-cat.cat2 { background: rgba(226,98,43,.1); color: var(--color-accent); }
        .news-item .news-arrow { width: 44px; height: 44px; border-radius: 50%; background: rgba(13,122,112,.08); display: flex; align-items: center; justify-content: center; color: var(--color-primary); transition: background .2s ease, color .2s ease; font-size: 18px; }
        .news-item:hover .news-arrow { background: var(--color-primary); color: #fff; }
        .news-empty { background: var(--color-surface); border-radius: var(--radius-card); padding: 40px; text-align: center; color: var(--color-muted); font-size: 15px; }
        .news-more { text-align: center; margin-top: 32px; }

        /* Versions / Selection */
        .version-section { background: var(--color-surface); }
        .version-compare { display: grid; grid-template-columns: .9fr 1.1fr .9fr; gap: 0; background: var(--color-bg); border-radius: 18px; overflow: hidden; border: 1px solid var(--color-line); }
        .version-col { padding: 40px 36px; }
        .version-col.mid { background: var(--color-surface); box-shadow: var(--shadow-hover); position: relative; }
        .version-col.mid::before { content: "推荐选择"; position: absolute; top: 14px; right: -30px; background: var(--color-accent); color: #fff; font-size: 12px; padding: 4px 36px; transform: rotate(45deg); letter-spacing: .04em; }
        .version-col .version-name { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
        .version-col .version-desc { font-size: 14px; color: var(--color-muted); margin-bottom: 18px; }
        .version-col .feature-list { display: flex; flex-direction: column; gap: 12px; margin: 20px 0; }
        .version-col .feature-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
        .version-col .feature-list li i.ok { color: var(--color-primary); margin-top: 3px; }
        .version-col .feature-list li i.miss { color: #b5c4c0; margin-top: 3px; }
        .version-cta { margin-top: 28px; }
        .compare-remark { font-size: 13px; color: var(--color-muted); margin-top: 12px; text-align: center; }

        /* FAQ Section */
        .faq-section { background: var(--color-bg); }
        .faq-panel { max-width: 860px; margin: 0 auto; }
        .faq-item { background: var(--color-surface); border-radius: 12px; margin-bottom: 12px; border: 1px solid var(--color-line); overflow: hidden; transition: border-color .2s ease, box-shadow .2s ease; }
        .faq-item.is-active { border-color: rgba(13,122,112,.4); box-shadow: var(--shadow-default); }
        .faq-item .faq-title { width: 100%; background: none; border: none; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-main); font-size: 17px; color: var(--color-text); font-weight: 600; cursor: pointer; transition: background .2s ease; text-align: left; gap: 14px; }
        .faq-item .faq-title:hover { background: rgba(13,122,112,.02); }
        .faq-item .faq-icon { display: flex; align-items: center; justify-content: center; width: 26px; height: 26px; position: relative; flex-shrink: 0; }
        .faq-item .faq-icon::before, .faq-item .faq-icon::after { content: ""; position: absolute; background: var(--color-primary); border-radius: 2px; transition: transform .3s ease; }
        .faq-item .faq-icon::before { width: 14px; height: 2px; }
        .faq-item .faq-icon::after { width: 2px; height: 14px; }
        .faq-item.is-active .faq-icon::after { transform: rotate(90deg); opacity: 0; }
        .faq-item .faq-content { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
        .faq-item .faq-content p { padding: 0 24px 22px; font-size: 15px; color: var(--color-muted); line-height: 1.8; }

        /* CTA */
        .cta-block { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 100%); }
        .cta-block .cta-inner { padding: 72px 0; text-align: center; color: #fff; }
        .cta-block h2 { color: #fff; font-size: 32px; margin-bottom: 16px; }
        .cta-block p { color: rgba(255,255,255,.8); font-size: 17px; max-width: 600px; margin: 0 auto 32px; }
        .cta-block .btn-light { min-width: 180px; }
        .cta-block .btn-outline-light { background: transparent; border: 2px solid rgba(255,255,255,.7); color: #fff; }
        .cta-block .btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; }
        .cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
        .cta-caption { margin-top: 18px; font-size: 13px; color: rgba(255,255,255,.55); }

        /* Footer */
        .site-footer { background: var(--color-primary-deep); color: rgba(255,255,255,.7); padding: 56px 0 0; }
        .footer-top { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); }
        .footer-brand .footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
        .footer-brand .footer-logo .logo-mark { width: 36px; height: 36px; background: rgba(255,255,255,.15); color: #fff; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; }
        .footer-brand .footer-logo .footer-name { font-size: 20px; color: #fff; font-weight: 700; }
        .footer-brand p { font-size: 15px; line-height: 1.75; max-width: 320px; }
        .footer-col h3 { color: #fff; font-size: 17px; margin-bottom: 18px; font-weight: 600; }
        .footer-col .footer-link { display: block; padding: 5px 0; font-size: 15px; color: rgba(255,255,255,.6); transition: color .2s ease, padding-left .2s ease; }
        .footer-col .footer-link:hover { color: #fff; padding-left: 6px; }
        .footer-col .footer-contact { font-size: 15px; color: rgba(255,255,255,.6); display: block; padding: 5px 0; }
        .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; flex-wrap: wrap; gap: 12px; font-size: 14px; color: rgba(255,255,255,.5); }

        /* Floating CTA */
        .float-cta { position: fixed; bottom: 32px; right: 32px; z-index: 200; display: none; }
        .float-cta.show { display: block; animation: ctaFadeIn .3s ease; }
        .float-cta .float-cta-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--color-accent); color: #fff; padding: 14px 28px; border-radius: 50px; font-size: 15px; font-weight: 600; box-shadow: 0 8px 24px rgba(226,98,43,.3); transition: background .2s ease, transform .2s ease; }
        .float-cta .float-cta-btn:hover { background: #c7521f; color: #fff; transform: translateY(-2px); }
        .mobile-bottom-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: #fff; border-top: 1px solid var(--color-line); padding: 10px 16px; z-index: 300; box-shadow: 0 -4px 16px rgba(0,0,0,.06); }
        .mobile-bottom-cta .mcta-btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; height: 44px; background: var(--color-accent); color: #fff; border-radius: 8px; font-weight: 600; text-align: center; }

        @keyframes ctaFadeIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

        @media (max-width: 1024px) {
            .hero-section .hero-grid { grid-template-columns: 1fr; gap: 56px; }
            .hero-visual { max-width: 600px; margin: 0 auto; }
            .showcase-section .showcase-grid { grid-template-columns: 1fr; gap: 40px; }
            .version-compare { grid-template-columns: 1fr; }
            .version-col.mid { order: 1; border-top: 3px solid var(--color-accent); border-bottom: 3px solid var(--color-accent); }
            .version-col:not(.mid) { order: 2; }
            .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
            .header-cta .status-chip { display: none; }
        }
        @media (max-width: 768px) {
            .section-pad { padding: var(--space-section-mobile) 0; }
            .main-nav { display: none; }
            .menu-toggle { display: flex; }
            .mobile-nav.open { display: block; }
            .desktop-visible { display: none !important; }
            .feature-strip .grid-x { grid-template-columns: 1fr; }
            .trust-grid { grid-template-columns: 1fr; gap: 20px; }
            .trust-item { border-right: none; border-bottom: 1px solid var(--color-line); padding: 20px 0; }
            .trust-item:last-child { border-bottom: none; }
            .footer-top { grid-template-columns: 1fr; gap: 28px; }
            .mobile-bottom-cta { display: block; }
            .float-cta { display: none !important; }
            body { padding-bottom: 70px; }
            .header-cta .btn { display: none; }
            .header-inner { padding-top: 0; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 18px; }
            .hero-section .hero-grid { gap: 32px; }
            h1 { font-size: 30px; }
            .hero-actions .btn { width: 100%; }
            .news-item { grid-template-columns: 1fr; gap: 8px; padding: 18px 16px; }
            .news-item .news-arrow { display: none; }
            .version-col { padding: 26px 20px; }
            .version-col.mid::before { right: -32px; }
            .cta-actions .btn { width: 100%; text-align: center; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
            .home-section-title { font-size: 24px; }
        }

        /* utility */
        .grid-x { display: flex; flex-wrap: wrap; }
        .grid-container { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; }
        .cell-auto { flex: 0 0 auto; }
        .border-bottom { border-bottom: 1px solid var(--color-line); }
        .section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
        .d-flex { display: flex; }
        .justify-between { justify-content: space-between; }
        .align-center { align-items: center; }
        .gap-12 { gap: 12px; }
        .gap-16 { gap: 16px; }

/* roulang page: article */
:root {
            --color-primary: #0D7A70;
            --color-primary-deep: #083E38;
            --color-accent: #E2622B;
            --color-bg: #F4F8F6;
            --color-surface: #FFFFFF;
            --color-text: #17312E;
            --color-muted: #5C706D;
            --color-line: #DBE6E2;
            --radius-lg: 14px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 2px rgba(23, 49, 46, .06);
            --shadow-hover: 0 8px 24px rgba(23, 49, 46, .08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --spacer: 20px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, background .25s ease, box-shadow .25s ease;
        }

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

        h1, h2, h3, h4, p {
            margin: 0;
        }

        ul {
            margin: 0;
            padding: 0;
        }

        button, input, textarea {
            font-family: var(--font-sans);
            font-size: 1rem;
        }

        button {
            border: 0;
            background: none;
            cursor: pointer;
        }

        :focus-visible {
            outline: 3px solid rgba(13, 122, 112, .35);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
        }

        .btn-primary:hover {
            background: #c9521f;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(226, 98, 43, .24);
        }

        .btn-secondary {
            background: var(--color-surface);
            color: var(--color-text);
            border: 1px solid var(--color-line);
        }

        .btn-secondary:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .55);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .2);
            color: #fff;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            box-shadow: 0 1px 0 rgba(219, 230, 226, .4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 28px;
            min-height: 72px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-mark {
            display: inline-grid;
            place-items: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--color-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .8px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: .2px;
            line-height: 1.2;
        }

        .brand-sub {
            display: block;
            font-size: 12px;
            font-weight: 400;
            color: var(--color-muted);
            letter-spacing: .2px;
            margin-top: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            margin-left: auto;
        }

        .nav-item {
            display: inline-flex;
            align-items: center;
            height: 44px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
        }

        .nav-item:hover {
            color: var(--color-primary);
            background: rgba(13, 122, 112, .07);
        }

        .nav-item.active {
            background: rgba(13, 122, 112, .1);
            color: var(--color-primary);
            font-weight: 700;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 4px;
        }

        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 30px;
            padding: 0 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary-deep);
            background: rgba(13, 122, 112, .08);
            white-space: nowrap;
        }

        .status-pill i {
            font-size: 10px;
            color: var(--color-accent);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 18px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--color-primary-deep);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(13, 122, 112, .08);
            color: var(--color-primary);
            font-size: 18px;
        }

        .article-hero {
            position: relative;
            background-color: var(--color-primary-deep);
            background-image: linear-gradient(100deg, rgba(8, 62, 56, .93) 0%, rgba(13, 122, 112, .78) 60%, rgba(13, 122, 112, .52) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 56px 0 58px;
        }

        .article-hero .cell {
            max-width: 920px;
        }

        .hero-category {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            color: #fff;
            margin-bottom: 20px;
        }

        .breadcrumb {
            font-size: 13px;
            margin-bottom: 18px;
            color: rgba(255, 255, 255, .82);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .9);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .article-hero h1 {
            font-size: clamp(30px, 3.4vw, 42px);
            line-height: 1.22;
            font-weight: 800;
            color: #fff;
            letter-spacing: -.5px;
            max-width: 860px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            margin-top: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .tag {
            background: rgba(255, 255, 255, .16);
            border-radius: 999px;
            padding: 4px 12px;
        }

        .article-main {
            padding: 56px 0 0;
        }

        .article-content-col {
            flex: 0 0 auto;
        }

        .article-detail {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 40px 48px 48px;
            margin-bottom: 40px;
        }

        .article-content {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text);
            max-width: 780px;
        }

        .article-content p {
            margin-bottom: 30px;
        }

        .article-content h2 {
            font-size: 26px;
            color: var(--color-text);
            margin: 36px 0 18px;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 20px;
            color: var(--color-text);
            margin: 28px 0 14px;
            padding-left: 14px;
            border-left: 4px solid var(--color-accent);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 28px 0;
        }

        .article-content ul {
            margin: 0 0 28px 22px;
        }

        .article-content ol {
            margin: 0 0 28px 22px;
        }

        .article-content li {
            margin-bottom: 10px;
        }

        .article-content blockquote {
            margin: 28px 0;
            padding: 20px 24px;
            background: rgba(13, 122, 112, .06);
            border-left: 4px solid var(--color-primary);
            border-radius: 0 12px 12px 0;
            color: var(--color-primary-deep);
            font-size: 16px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--color-line);
            padding: 12px 15px;
            text-align: left;
        }

        .article-content code {
            background: rgba(13, 122, 112, .08);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 15px;
        }

        .article-pager {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid var(--color-line);
            padding-top: 24px;
            margin-top: 34px;
            font-size: 14px;
        }

        .pager-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted);
        }

        .pager-item a {
            color: var(--color-primary);
            font-weight: 500;
        }

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

        .article-back {
            display: flex;
            justify-content: center;
            margin-top: 12px;
        }

        .related-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            padding: 48px 0 72px;
        }

        .related-section .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 28px;
        }

        .related-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
        }

        .related-section .more-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .related-stack {
            display: grid;
            gap: 18px;
        }

        .related-card {
            display: flex;
            align-items: stretch;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .related-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-hover);
        }

        .related-media {
            position: relative;
            width: 250px;
            min-height: 150px;
            flex-shrink: 0;
            overflow: hidden;
            background: var(--color-bg);
        }

        .related-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .related-card:hover .related-media img {
            transform: scale(1.04);
        }

        .related-entry {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 20px 24px;
        }

        .related-entry h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--color-text);
        }

        .related-entry h3 a:hover {
            color: var(--color-primary);
        }

        .related-entry p {
            color: var(--color-muted);
            font-size: 14px;
            line-height: 1.7;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .related-entry .rel-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: var(--color-muted);
            margin-top: auto;
        }

        .rel-tag {
            background: rgba(13, 122, 112, .08);
            color: var(--color-primary);
            border-radius: 999px;
            padding: 2px 10px;
            font-weight: 600;
        }

        .no-data-section {
            padding: 96px 0 120px;
            text-align: center;
        }

        .no-data-section .empty-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 64px 40px;
            max-width: 680px;
            margin: 0 auto;
        }

        .empty-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 24px;
            display: grid;
            place-items: center;
            background: rgba(13, 122, 112, .08);
            border-radius: 24px;
            color: var(--color-primary);
            font-size: 30px;
        }

        .no-data-section h1 {
            font-size: 34px;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .no-data-section p {
            color: var(--color-muted);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .cta-section {
            background: var(--color-primary-deep);
            color: #fff;
            padding: 64px 0;
        }

        .cta-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 0 10px;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            color: #fff;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .8);
            font-size: 16px;
            max-width: 640px;
            margin-top: 14px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 14px;
            margin-top: 28px;
        }

        .mini-faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 40px;
            max-width: 900px;
            text-align: left;
        }

        .mini-faq-item {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .mini-faq-item h3 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 8px;
        }

        .mini-faq-item p {
            color: rgba(255, 255, 255, .74);
            font-size: 14px;
            margin-bottom: 0;
        }

        .site-footer {
            background: #f9fbfa;
            border-top: 1px solid var(--color-line);
            color: var(--color-muted);
            font-size: 14px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding: 54px 0 44px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo .logo-mark {
            width: 40px;
            height: 40px;
            font-size: 11px;
        }

        .footer-name {
            font-size: 19px;
            font-weight: 800;
            color: var(--color-text);
        }

        .footer-top p {
            line-height: 1.8;
            font-size: 14px;
            max-width: 340px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .footer-link {
            font-size: 14px;
            color: var(--color-muted);
        }

        .footer-link:hover {
            color: var(--color-primary);
        }

        .footer-contact {
            display: flex;
            align-items: center;
            gap: 3px;
            font-size: 13px;
            line-height: 1.5;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid var(--color-line);
            padding: 20px 0;
            font-size: 13px;
        }

        .mobile-menu-overlay {
            display: none;
        }

        @media (max-width: 1023px) {
            .header-inner {
                gap: 16px;
            }

            .main-nav {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                display: none;
                margin: 0;
                background: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 12px 20px 18px;
                border-bottom: 1px solid var(--color-line);
                box-shadow: 0 16px 30px rgba(23, 49, 46, .1);
            }

            .main-nav.is-open {
                display: flex;
            }

            .nav-item {
                display: flex;
                align-items: center;
                height: auto;
                min-height: 46px;
                border-radius: 10px;
                font-size: 16px;
                padding: 0 14px;
            }

            .header-actions {
                margin-left: auto;
            }

            .status-pill,
            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .article-hero {
                padding: 46px 0 52px;
            }

            .related-section {
                padding: 40px 0 56px;
            }

            .related-media {
                width: 200px;
            }

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

            .footer-top p {
                max-width: 100%;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .brand-text {
                font-size: 17px;
            }

            .logo-mark {
                width: 38px;
                height: 38px;
                border-radius: 10px;
                font-size: 11px;
            }

            .header-inner {
                min-height: 64px;
            }

            .main-nav {
                top: 64px;
            }

            .article-detail {
                padding: 24px 20px;
                border-radius: var(--radius-md);
            }

            .article-content {
                font-size: 16px;
            }

            .article-content h2 {
                font-size: 22px;
                margin-top: 28px;
            }

            .article-meta {
                gap: 10px;
            }

            .article-pager {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-section .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .related-media {
                width: 100%;
                min-height: 170px;
            }

            .related-media img {
                width: 100%;
            }

            .related-entry {
                padding: 18px;
            }

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

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

            .mini-faq-grid {
                grid-template-columns: 1fr;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 0 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: left;
                line-height: 1.7;
            }

            .nav-toggle {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }

            .no-data-section {
                padding: 64px 0 88px;
            }
        }

        @media (max-width: 520px) {
            .brand-sub {
                display: none;
            }

            .header-inner {
                gap: 12px;
            }

            .nav-toggle {
                margin-left: auto;
            }

            .article-hero h1 {
                font-size: 27px;
            }

            .btn {
                padding: 0 20px;
            }

            .hero-category {
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0D7A70;
            --color-primary-deep: #083E38;
            --color-accent: #E2622B;
            --color-bg: #F4F8F6;
            --color-surface: #FFFFFF;
            --color-text: #17312E;
            --color-muted: #5C706D;
            --color-line: #DBE6E2;
            --radius-lg: 14px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --shadow-default: 0 1px 2px rgba(23,49,46,.06);
            --shadow-hover: 0 8px 24px rgba(23,49,46,.08);
            --section-space: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 96px;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }

        h1, h2, h3, h4 {
            font-family: var(--font-sans);
            line-height: 1.3;
            margin: 0 0 14px;
            color: var(--color-text);
        }

        h1 { font-size: 42px; font-weight: 800; line-height: 1.2; }
        h2 { font-size: 30px; font-weight: 700; }
        h3 { font-size: 22px; font-weight: 600; }

        p {
            margin: 0 0 18px;
        }

        ul, ol {
            margin: 0 0 20px;
            padding-left: 20px;
        }

        .grid-container {
            max-width: 1240px;
        }

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

        .section-white {
            background: var(--color-surface);
        }

        .section-tint {
            background: var(--color-bg);
        }

        .section-deep {
            background: var(--color-primary-deep);
            color: #FFFFFF;
        }

        .section-deep h2,
        .section-deep h3 {
            color: #FFFFFF;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            color: var(--color-primary);
            background: rgba(13,122,112,.1);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
        }

        .section-deep .section-label {
            color: #C6F2E8;
            background: rgba(255,255,255,.1);
        }

        .section-title {
            margin-bottom: 32px;
        }

        .section-intro {
            color: var(--color-muted);
            max-width: 720px;
            font-size: 17px;
            margin-bottom: 36px;
        }

        .section-deep .section-intro {
            color: rgba(255,255,255,.82);
        }

        .text-muted {
            color: var(--color-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            gap: 8px;
            transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
        }

        .btn:hover,
        .btn:focus-visible {
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(13,122,112,.25);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: #0A665E;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #FFFFFF;
        }

        .btn-accent:hover {
            background: #CB5523;
        }

        .btn-outline {
            border-color: var(--color-line);
            background: transparent;
            color: var(--color-text);
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-light {
            background: #FFFFFF;
            color: var(--color-primary-deep);
        }

        .btn-light:hover {
            background: #F2F8F6;
        }

        .btn-sm {
            min-height: 40px;
            padding: 8px 18px;
            font-size: 14px;
        }

        .card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-default);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: saturate(1.2);
            border-bottom: 1px solid var(--color-line);
        }

        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--color-primary-deep);
            color: #FFFFFF;
            font-weight: 800;
            letter-spacing: .02em;
            font-size: 15px;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }

        .brand-text strong {
            font-size: 19px;
            color: var(--color-text);
            letter-spacing: .01em;
        }

        .brand-text small {
            font-size: 12px;
            color: var(--color-muted);
            margin-top: 4px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-item {
            display: inline-flex;
            padding: 10px 12px;
            color: var(--color-text);
            font-weight: 500;
            font-size: 15px;
            border-radius: 8px;
            line-height: 1.2;
        }

        .nav-item:hover {
            color: var(--color-primary);
            background: rgba(13,122,112,.07);
        }

        .nav-item.active {
            color: var(--color-primary);
            background: rgba(13,122,112,.1);
            font-weight: 700;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: 999px;
            background: #FFF1EB;
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 700;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 0;
            background: transparent;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle:hover {
            background: rgba(13,122,112,.08);
        }

        .nav-toggle span,
        .nav-toggle span::before,
        .nav-toggle span::after {
            content: "";
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform .2s ease;
        }

        .nav-toggle span {
            position: relative;
        }

        .nav-toggle span::before,
        .nav-toggle span::after {
            position: absolute;
            left: 0;
        }

        .nav-toggle span::before {
            top: -6px;
        }

        .nav-toggle span::after {
            top: 6px;
        }

        .nav-toggle.active span {
            background: transparent;
        }

        .nav-toggle.active span::before {
            transform: translateY(6px) rotate(45deg);
        }

        .nav-toggle.active span::after {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: #FFFFFF;
            border-bottom: 1px solid var(--color-line);
            padding: 12px 20px 22px;
            box-shadow: 0 12px 30px rgba(23,49,46,.1);
        }

        .mobile-drawer.is-open {
            display: block;
        }

        .mobile-drawer .nav-item {
            display: block;
            padding: 13px 16px;
            border-radius: 8px;
        }

        .mobile-drawer .mobile-cta {
            margin-top: 14px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Page hero */
        .category-hero {
            position: relative;
            padding: 88px 0 92px;
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(110deg, rgba(8,62,56,.96) 0%, rgba(13,122,112,.82) 60%, rgba(13,122,112,.5) 100%);
        }

        .category-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-crumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin-bottom: 26px;
            color: rgba(255,255,255,.78);
            font-size: 14px;
        }

        .hero-crumb a {
            color: rgba(255,255,255,.95);
        }

        .hero-crumb a:hover {
            text-decoration: underline;
        }

        .hero-crumb i {
            font-size: 12px;
            color: rgba(255,255,255,.6);
        }

        .category-hero h1 {
            color: #FFFFFF;
            margin-bottom: 18px;
            font-size: 46px;
        }

        .hero-lead {
            font-size: 18px;
            line-height: 1.7;
            max-width: 650px;
            margin-bottom: 28px;
            color: rgba(255,255,255,.9);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #FCE3D6;
            background: rgba(255,255,255,.12);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            margin-bottom: 22px;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            background: #F4B18B;
            border-radius: 50%;
        }

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

        .hero-panel {
            background: rgba(255,255,255,.1);
            border: 1px solid rgba(255,255,255,.2);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin-top: 20px;
        }

        .hero-panel h3 {
            color: #FFFFFF;
            font-size: 19px;
        }

        .hero-panel p {
            color: rgba(255,255,255,.82);
            font-size: 15px;
        }

        .chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 0;
            margin: 0;
            list-style: none;
        }

        .chip {
            background: rgba(255,255,255,.15);
            border: 1px solid rgba(255,255,255,.2);
            color: #FFFFFF;
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
        }

        /* Overview */
        .overview-wrap {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-default);
            padding: 34px;
        }

        .overview-block + .overview-block {
            border-top: 1px solid var(--color-line);
            padding-top: 28px;
            margin-top: 28px;
        }

        .overview-number {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }

        .overview-item h3 {
            margin-top: 8px;
            margin-bottom: 10px;
        }

        /* Featured card */
        .feat-grid {
            margin-top: 44px;
        }

        .featured-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            color: #FFFFFF;
            box-shadow: var(--shadow-default);
        }

        .featured-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,62,56,0) 10%, rgba(8,62,56,.92) 100%);
        }

        .featured-content {
            position: relative;
            z-index: 2;
            padding: 34px;
            max-width: 720px;
        }

        .featured-tag {
            display: inline-block;
            color: var(--color-accent);
            background: #FFFFFF;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .featured-card h3 {
            color: #FFFFFF;
            font-size: 26px;
            margin-bottom: 10px;
        }

        .featured-card p {
            color: rgba(255,255,255,.92);
            margin-bottom: 0;
            font-size: 15px;
        }

        /* Guide rows */
        .guide-card {
            display: flex;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            min-height: 100%;
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .guide-card .guide-media {
            flex: 0 0 42%;
            overflow: hidden;
        }

        .guide-card .guide-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .guide-card .guide-body {
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .guide-body .guide-label {
            color: var(--color-accent);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: .04em;
            margin-bottom: 8px;
        }

        .guide-body h3 {
            font-size: 21px;
            margin-bottom: 10px;
        }

        .guide-body p {
            color: var(--color-muted);
            font-size: 15px;
            margin-bottom: 0;
        }

        /* Process */
        .steps-wrap {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 36px;
        }

        .step-row {
            display: flex;
            align-items: flex-start;
            gap: 22px;
            background: rgba(255,255,255,.08);
            border: 1px solid rgba(255,255,255,.18);
            border-radius: var(--radius-lg);
            padding: 22px 26px;
            transition: transform .2s ease, background .2s ease;
        }

        .step-row:hover {
            transform: translateX(4px);
            background: rgba(255,255,255,.13);
        }

        .step-row .step-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--color-accent);
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
        }

        .step-row h4 {
            font-size: 19px;
            margin-bottom: 4px;
            color: #FFFFFF;
        }

        .step-row p {
            margin: 0;
            color: rgba(255,255,255,.78);
            font-size: 15px;
        }

        /* Scenario */
        .scenario-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-default);
            overflow: hidden;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
        }

        .scenario-card .scenario-content {
            flex: 1 1 55%;
            padding: 38px;
        }

        .scenario-card .scenario-media {
            flex: 1 1 45%;
            min-width: 280px;
        }

        .scenario-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .scenario-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: 10px;
            font-weight: 500;
            font-size: 15px;
        }

        .scenario-list i {
            color: var(--color-primary);
        }

        /* Resource links */
        .res-grid {
            margin-top: 34px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .res-link {
            display: block;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            padding: 22px 24px;
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
        }

        .res-link:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        .res-link i {
            color: var(--color-primary);
            margin-bottom: 10px;
            font-size: 22px;
        }

        .res-link strong {
            display: block;
            font-size: 16px;
            margin-bottom: 6px;
        }

        .res-link span {
            color: var(--color-muted);
            font-size: 14px;
            line-height: 1.6;
            display: block;
        }

        /* FAQ */
        .faq-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
        }

        .faq-intro {
            flex: 0 0 360px;
        }

        .faq-list {
            flex: 1 1 640px;
        }

        .accordion {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .accordion-item {
            margin-bottom: 12px;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-default);
            overflow: hidden;
        }

        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            background: transparent;
            border: 0;
            text-align: left;
            padding: 20px 26px;
            color: var(--color-text);
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            gap: 16px;
            position: relative;
            transition: background .2s ease, color .2s ease;
        }

        .accordion-title:hover,
        .accordion-item.is-active > .accordion-title {
            background: rgba(13,122,112,.08);
            color: var(--color-primary);
        }

        .accordion-title:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: -2px;
        }

        .accordion-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            position: relative;
            background: var(--color-primary);
            transition: background .2s ease, transform .2s ease;
        }

        .accordion-icon::before,
        .accordion-icon::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            background: #FFFFFF;
            border-radius: 2px;
            transform: translate(-50%, -50%);
        }

        .accordion-icon::before {
            width: 11px;
            height: 2px;
        }

        .accordion-icon::after {
            width: 2px;
            height: 11px;
            transition: transform .2s ease;
        }

        .accordion-item.is-active .accordion-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
        }

        .accordion-content {
            padding: 0 26px 22px;
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .accordion-content p {
            margin-bottom: 0;
        }

        /* CTA */
        .cta-card {
            background: linear-gradient(120deg, #083E38 0%, #0D7A70 100%);
            border-radius: var(--radius-lg);
            padding: 58px 40px;
            overflow: hidden;
            position: relative;
            color: #FFFFFF;
            text-align: center;
        }

        .cta-card h2 {
            color: #FFFFFF;
            font-size: 32px;
            margin-bottom: 16px;
        }

        .cta-card p {
            color: rgba(255,255,255,.8);
            max-width: 640px;
            margin: 0 auto 28px;
            font-size: 16px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: rgba(255,255,255,.86);
            padding-top: 64px;
        }

        .footer-brand p {
            color: rgba(255,255,255,.68);
            font-size: 14px;
            max-width: 380px;
            margin-top: 16px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 44px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            color: #FFFFFF;
            font-weight: 700;
        }

        .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: #FFFFFF;
            color: var(--color-primary-deep);
            border-radius: 10px;
            font-size: 13px;
            font-weight: 800;
        }

        .footer-col h3 {
            font-size: 15px;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-link,
        .footer-contact {
            display: block;
            padding: 4px 0;
            color: rgba(255,255,255,.68);
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-link:hover {
            color: #FFFFFF;
        }

        .footer-contact {
            margin-bottom: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.16);
            padding: 20px 0 22px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px 20px;
            color: rgba(255,255,255,.5);
            font-size: 13px;
        }

        /* Floating CTA */
        .float-cta {
            position: fixed;
            right: 28px;
            bottom: 28px;
            z-index: 70;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #FFFFFF;
            padding: 0 20px;
            height: 46px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 6px 18px rgba(226,98,43,.28);
            opacity: 0;
            visibility: hidden;
            transform: translateY(16px);
            transition: opacity .25s ease, transform .25s ease, background .2s ease, visibility .25s;
        }

        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .float-cta:hover {
            background: #CB5523;
        }

        .float-cta:focus-visible {
            outline: 3px solid rgba(226,98,43,.3);
            outline-offset: 2px;
        }

        @media screen and (max-width: 1024px) {
            .main-nav,
            .header-actions .header-badge {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .section {
                padding: 66px 0;
            }

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

            .footer-top {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --section-space: 56px;
            }

            h1 { font-size: 34px; }
            h2 { font-size: 26px; }
            h3 { font-size: 20px; }

            .category-hero {
                padding: 64px 0 72px;
            }

            .category-hero h1 {
                font-size: 38px;
            }

            .guide-card {
                flex-direction: column;
            }

            .guide-card .guide-media {
                flex: none;
                min-height: 220px;
            }

            .featured-card {
                min-height: 320px;
            }

            .featured-content {
                padding: 24px;
            }

            .scenario-card {
                flex-direction: column-reverse;
            }

            .scenario-media img {
                height: 220px;
            }

            .scenario-list {
                grid-template-columns: 1fr;
            }

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

            .accordion-title {
                padding: 18px 18px;
                font-size: 15px;
            }

            .accordion-content {
                padding: 0 18px 18px;
                font-size: 14px;
            }

            .float-cta {
                right: auto;
                left: 16px;
                right: 16px;
                bottom: 14px;
                display: flex;
                justify-content: center;
                padding: 0 18px;
            }
        }

        @media screen and (max-width: 560px) {
            .header-actions .header-cta {
                display: none;
            }

            .brand-text strong {
                font-size: 17px;
            }

            .brand-mark {
                width: 38px;
                height: 38px;
                border-radius: 10px;
            }

            .hero-actions .btn {
                width: 100%;
            }

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

            .footer-bottom {
                flex-direction: column;
                font-size: 12px;
            }

            .cta-card {
                padding: 40px 22px;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .float-cta {
                height: 48px;
            }
        }

/* roulang page: category2 */
:root{
    --color-primary:#0D7A70;
    --color-primary-deep:#083E38;
    --color-primary-dark:#06312D;
    --color-accent:#E2622B;
    --color-accent-hover:#C7511F;
    --color-bg:#F4F8F6;
    --color-surface:#FFFFFF;
    --color-surface-soft:#EDF4F1;
    --color-text:#17312E;
    --color-muted:#5C706D;
    --color-line:#DBE6E2;
    --radius-lg:16px;
    --radius-md:12px;
    --radius-sm:8px;
    --shadow-sm:0 1px 2px rgba(23,49,46,.06);
    --shadow-lg:0 8px 24px rgba(23,49,46,.08);
    --space-section-desktop:96px;
    --space-section-mobile:60px;
    --font-base:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{
    box-sizing:border-box;
}
html,body{
    margin:0;
    padding:0;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
}
html{
    scroll-behavior:smooth;
}
body{
    font-family:var(--font-base);
    background:var(--color-bg);
    color:var(--color-text);
    font-size:16px;
    line-height:1.75;
    overflow-x:hidden;
}
img{
    max-width:100%;
    height:auto;
    display:block;
}
a{
    color:inherit;
    text-decoration:none;
}
ul,ol{
    margin:0;
    padding:0;
}
li{
    list-style:none;
}
button,input,textarea,select{
    font-family:inherit;
    font-size:inherit;
    color:inherit;
}
.grid-container{
    max-width:1200px;
    padding-right:24px;
    padding-left:24px;
}
@media screen and (min-width: 64em){
    .grid-container{
        max-width:1200px;
        padding-right:24px;
        padding-left:24px;
    }
}
.grid-margin-x>.cell{
    margin-bottom:0;
}
.fa, .fas, .far{
    font-style:normal;
}

/* ========== 导航 Header ========== */
.site-header{
    position:sticky;
    top:0;
    z-index:50;
    height:72px;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--color-line);
    box-shadow:0 2px 10px rgba(23,49,46,.03);
}
.site-header .grid-container{
    height:72px;
    display:flex;
    align-items:center;
    gap:24px;
}
.brand-logo{
    display:flex;
    align-items:center;
    flex:0 0 auto;
    gap:10px;
    margin-right:auto;
}
.brand-mark{
    display:flex;
    align-items:center;
    gap:9px;
    flex-shrink:0;
}
.logo-badge{
    background:var(--color-primary);
    color:#fff;
    font-weight:800;
    font-size:15px;
    letter-spacing:.3px;
    width:40px;
    height:40px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:10px;
    box-shadow:0 4px 12px rgba(13,122,112,.2);
}
.logo-title{
    display:flex;
    flex-direction:column;
    line-height:1.08;
}
.logo-title strong{
    font-size:19px;
    font-weight:800;
    letter-spacing:.5px;
    color:var(--color-text);
}
.logo-title small{
    font-size:11px;
    color:var(--color-muted);
    margin-top:3px;
    letter-spacing:1px;
    font-weight:500;
}
.main-nav{
    display:flex;
    align-items:center;
    gap:6px;
    flex-wrap:nowrap;
}
.main-nav .nav-item{
    display:inline-flex;
    align-items:center;
    position:relative;
    padding:8px 13px;
    border-radius:8px;
    font-size:14px;
    font-weight:600;
    color:var(--color-muted);
    transition:color .2s;
}
.main-nav .nav-item::after{
    content:"";
    position:absolute;
    left:14px;
    right:14px;
    bottom:3px;
    height:2px;
    background:var(--color-accent);
    border-radius:2px;
    opacity:0;
    transform:scaleX(.3);
    transition:all .25s;
}
.main-nav .nav-item:hover{
    color:var(--color-primary-deep);
}
.main-nav .nav-item.active{
    color:var(--color-primary);
}
.main-nav .nav-item.active::after{
    opacity:1;
    transform:scaleX(1);
}
.header-tools{
    display:flex;
    align-items:center;
    gap:12px;
    margin-left:auto;
}
.header-status{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:30px;
    padding:0 12px;
    border-radius:999px;
    background:rgba(13,122,112,.08);
    color:var(--color-primary-deep);
    font-size:12px;
    font-weight:600;
}
.pulse-dot{
    width:6px;
    height:6px;
    background:var(--color-primary);
    border-radius:50%;
    box-shadow:0 0 0 0 rgba(13,122,112,.4);
    animation:pulse 2s infinite;
}
@keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(13,122,112,.35);}
    70%{box-shadow:0 0 0 6px rgba(13,122,112,0);}
    100%{box-shadow:0 0 0 0 rgba(13,122,112,0);}
}
.header-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:42px;
    padding:0 20px;
    background:var(--color-accent);
    color:#fff;
    border-radius:999px;
    font-size:14px;
    font-weight:700;
    transition:background .2s, transform .2s, box-shadow .2s;
    white-space:nowrap;
}
.header-cta:hover{
    background:var(--color-accent-hover);
    box-shadow:0 8px 20px rgba(226,98,43,.18);
    transform:translateY(-1px);
    color:#fff;
}
.menu-toggle{
    display:none;
    width:42px;
    height:42px;
    border:1px solid var(--color-line);
    border-radius:10px;
    background:var(--color-surface);
    color:var(--color-primary-deep);
    font-size:18px;
    cursor:pointer;
    align-items:center;
    justify-content:center;
}
.mobile-drawer{
    display:none;
    position:fixed;
    top:72px;
    left:0;
    right:0;
    z-index:49;
    padding:18px 24px 28px;
    background:#fff;
    border-bottom:1px solid var(--color-line);
    box-shadow:0 16px 36px rgba(23,49,46,.08);
    flex-direction:column;
    gap:4px;
}
.mobile-drawer.open{
    display:flex;
}
.mobile-drawer a{
    display:flex;
    align-items:center;
    min-height:46px;
    padding:8px 14px;
    border-radius:10px;
    color:var(--color-text);
    font-weight:600;
    font-size:15px;
}
.mobile-drawer a:hover,
.mobile-drawer a.active{
    background:rgba(13,122,112,.08);
    color:var(--color-primary);
}

/* ========== 通用按钮 ========== */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:46px;
    padding:0 24px;
    border-radius:8px;
    border:0;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    text-align:center;
    transition:all .2s;
}
.btn:focus-visible{
    outline:3px solid rgba(13,122,112,.25);
    outline-offset:2px;
}
.btn-primary{
    background:var(--color-accent);
    color:#fff;
}
.btn-primary:hover{
    background:var(--color-accent-hover);
    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(226,98,43,.22);
    color:#fff;
}
.btn-dark{
    background:var(--color-primary-deep);
    color:#fff;
}
.btn-dark:hover{
    background:var(--color-primary-dark);
    color:#fff;
}
.btn-outline-light{
    background:transparent;
    border:1px solid rgba(255,255,255,.75);
    color:#fff;
}
.btn-outline-light:hover{
    background:rgba(255,255,255,.12);
    color:#fff;
}
.btn-block{
    width:100%;
}

/* ========== 分类页 Hero ========== */
.category-hero{
    position:relative;
    color:#fff;
    background-color:var(--color-primary-deep);
    background-image:linear-gradient(100deg, rgba(6,49,45,.95) 0%, rgba(13,122,112,.86) 58%, rgba(13,122,112,.6) 100%), url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    padding:72px 0 78px;
}
.category-hero::after{
    content:"";
    position:absolute;
    right:-120px;
    bottom:-160px;
    width:440px;
    height:440px;
    background:radial-gradient(circle, rgba(13,122,112,.45) 0%, rgba(255,255,255,0) 68%);
    pointer-events:none;
}
.hero-breadcrumb{
    display:flex;
    align-items:center;
    gap:10px;
    color:rgba(255,255,255,.7);
    font-size:14px;
    margin-bottom:18px;
}
.hero-breadcrumb a{
    color:rgba(255,255,255,.9);
    transition:color .2s;
}
.hero-breadcrumb a:hover{
    color:#fff;
}
.category-hero .hero-title{
    font-size:44px;
    line-height:1.2;
    font-weight:800;
    letter-spacing:1px;
    margin:0 0 14px;
}
.category-hero .hero-lead{
    max-width:640px;
    font-size:17px;
    line-height:1.8;
    color:rgba(255,255,255,.86);
    margin:0 0 28px;
}
.hero-mini-stat{
    display:flex;
    flex-wrap:wrap;
    gap:28px;
    margin-top:26px;
}
.stat-mini{
    border-left:2px solid rgba(255,255,255,.35);
    padding-left:16px;
}
.stat-mini span{
    display:block;
    font-size:13px;
    color:rgba(255,255,255,.7);
    margin-bottom:4px;
}
.stat-mini strong{
    font-size:20px;
    font-weight:700;
}

/* ========== 通用 Section ========== */
.page-section{
    padding:var(--space-section-desktop) 0;
}
.section-head{
    max-width:760px;
    margin-bottom:42px;
}
.section-head.center{
    margin-left:auto;
    margin-right:auto;
    text-align:center;
}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    letter-spacing:1.5px;
    color:var(--color-primary);
    text-transform:uppercase;
    margin-bottom:12px;
}
.eyebrow::before{
    content:"";
    width:20px;
    height:2px;
    background:var(--color-accent);
    display:inline-block;
}
.section-head.center .eyebrow::after{
    content:"";
    width:20px;
    height:2px;
    background:var(--color-accent);
    display:inline-block;
}
.section-head h2{
    font-size:31px;
    line-height:1.25;
    font-weight:800;
    letter-spacing:.5px;
    margin:0 0 14px;
    color:var(--color-text);
}
.section-head h3{
    font-size:20px;
    line-height:1.5;
    color:var(--color-muted);
    font-weight:400;
    margin:0;
}
.section-head p{
    margin:14px 0 0;
    color:var(--color-muted);
    font-size:15px;
}

/* ========== 栏目范围卡 ========== */
.overview-grid{
    margin-bottom:56px;
}
.overview-panel{
    background:var(--color-surface);
    border:1px solid var(--color-line);
    border-radius:var(--radius-md);
    padding:28px 24px;
    height:100%;
    box-shadow:var(--shadow-sm);
    transition:box-shadow .25s;
}
.overview-panel:hover{
    box-shadow:var(--shadow-lg);
}
.overview-panel .panel-icon{
    width:46px;
    height:46px;
    border-radius:12px;
    background:rgba(13,122,112,.1);
    color:var(--color-primary);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:19px;
    margin-bottom:16px;
}
.overview-panel h3{
    font-size:18px;
    font-weight:700;
    margin:0 0 8px;
}
.overview-panel p{
    color:var(--color-muted);
    font-size:14px;
    margin:0;
    line-height:1.7;
}
.tag-cloud{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:18px;
}
.tag-cloud span{
    background:rgba(13,122,112,.08);
    border:1px solid rgba(13,122,112,.12);
    color:var(--color-primary-deep);
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:40px;
    padding:0 18px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
}
.tag-cloud i{
    color:var(--color-accent);
}

/* ========== 内容卡 ========== */
.category-feature{
    margin-bottom:42px;
}
.card-feature{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    min-height:380px;
    display:flex;
    align-items:flex-end;
    border:0;
    background:var(--color-primary-deep);
    box-shadow:var(--shadow-sm);
    transition:box-shadow .3s, transform .3s;
}
.card-feature img{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    opacity:.45;
}
.card-feature::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(160deg, rgba(6,49,45,.35) 0%, rgba(6,49,45,.85) 72%, rgba(8,62,56,.96) 100%);
}
.card-feature-body{
    position:relative;
    z-index:2;
    color:#fff;
    padding:48px 36px 38px;
    max-width:780px;
}
.card-feature-body .tag{
    display:inline-flex;
    align-items:center;
    gap:7px;
    background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.24);
    padding:6px 14px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.4px;
    margin-bottom:16px;
}
.card-feature-body h2{
    font-size:27px;
    line-height:1.35;
    margin:0 0 12px;
    font-weight:700;
    color:#fff;
}
.card-feature-body p{
    font-size:15px;
    line-height:1.8;
    color:rgba(255,255,255,.86);
    margin:0 0 20px;
    max-width:620px;
}
.link-arrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-weight:700;
    font-size:14px;
    color:#fff;
    border-bottom:1px solid rgba(255,255,255,.5);
    padding-bottom:4px;
}
.link-arrow i{
    transition:transform .2s;
}
.link-arrow:hover i{
    transform:translateX(5px);
}
.wide-card{
    background:var(--color-surface);
    border:1px solid var(--color-line);
    border-radius:var(--radius-lg);
    overflow:hidden;
    margin-bottom:36px;
    box-shadow:var(--shadow-sm);
    transition:box-shadow .25s, transform .25s;
}
.wide-card:hover{
    box-shadow:var(--shadow-lg);
    transform:translateY(-3px);
}
.wide-media{
    position:relative;
    min-height:260px;
    background:var(--color-surface-soft);
    overflow:hidden;
}
.wide-media img{
    width:100%;
    height:100%;
    object-fit:cover;
    position:absolute;
    inset:0;
}
.wide-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:rgba(13,122,112,.08);
    mix-blend-mode:multiply;
}
.wide-content{
    padding:44px 34px;
    display:flex;
    flex-direction:column;
    justify-content:center;
}
.wide-content .card-no{
    font-size:13px;
    letter-spacing:1.5px;
    color:var(--color-accent);
    font-weight:700;
    margin-bottom:10px;
}
.wide-content h3{
    font-size:22px;
    margin:0 0 12px;
    color:var(--color-text);
    font-weight:700;
    line-height:1.45;
}
.wide-content p{
    color:var(--color-muted);
    font-size:15px;
    margin:0 0 18px;
}
.link-plain{
    display:inline-flex;
    align-items:center;
    gap:7px;
    color:var(--color-primary);
    font-weight:700;
    font-size:14px;
}
.link-plain:hover{
    color:var(--color-accent);
}
.link-plain i{
    transition:transform .2s;
}
.link-plain:hover i{
    transform:translateX(4px);
}

/* ========== 深色流程区 ========== */
.deepline-section{
    background:var(--color-primary-deep);
    color:#fff;
    padding:var(--space-section-desktop) 0;
    position:relative;
    overflow:hidden;
}
.deepline-section::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    right:0;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
    background-size:100% 48px;
    height:100%;
}
.deepline-section .section-head h2{
    color:#fff;
}
.deepline-section .section-head h3,
.deepline-section .section-head p{
    color:rgba(255,255,255,.74);
}
.steps-wrap{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
    margin-top:40px;
    position:relative;
    z-index:2;
}
.step-item{
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.12);
    border-radius:16px;
    padding:26px 22px;
    min-height:190px;
    transition:background .2s, transform .2s;
}
.step-item:hover{
    background:rgba(255,255,255,.13);
    transform:translateY(-4px);
}
.step-num{
    font-size:36px;
    font-weight:800;
    line-height:1;
    color:rgba(255,255,255,.25);
    font-style:normal;
    display:block;
    margin-bottom:14px;
}
.step-item h3{
    font-size:17px;
    font-weight:700;
    color:#fff;
    margin:0 0 8px;
}
.step-item p{
    font-size:13px;
    color:rgba(255,255,255,.7);
    margin:0;
    line-height:1.7;
}

/* ========== 版本参考列表 ========== */
.reference-list{
    display:flex;
    flex-direction:column;
    gap:14px;
}
.reference-row{
    display:flex;
    align-items:flex-start;
    background:var(--color-surface);
    border:1px solid var(--color-line);
    border-radius:14px;
    padding:22px 24px;
    gap:18px;
    transition:box-shadow .2s, margin-left .2s;
}
.reference-row:hover{
    box-shadow:var(--shadow-lg);
    margin-left:4px;
}
.ref-index{
    flex:0 0 46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:rgba(13,122,112,.1);
    color:var(--color-primary);
    font-weight:800;
    border-radius:12px;
    font-size:15px;
}
.ref-main{
    flex:1;
}
.ref-main h3{
    font-size:17px;
    margin:0 0 6px;
    font-weight:700;
}
.ref-main p{
    color:var(--color-muted);
    margin:0;
    font-size:14px;
}
.ref-links{
    background:#fff;
    border:1px solid var(--color-line);
    border-radius:16px;
    padding:30px;
    height:100%;
}
.ref-links .title{
    font-size:15px;
    font-weight:700;
    display:flex;
    align-items:center;
    gap:8px;
    color:var(--color-primary-deep);
    margin-bottom:18px;
}
.ref-links a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:12px 4px;
    border-bottom:1px solid var(--color-line);
    color:var(--color-text);
    font-size:14px;
    font-weight:500;
    transition:color .2s;
}
.ref-links a:hover{
    color:var(--color-primary);
}
.ref-links a i{
    color:var(--color-accent);
}
.ref-links a:last-child{
    border-bottom:0;
}

/* ========== FAQ ========== */
.faq-section{
    background:#fff;
}
.faq-intro{
    padding-right:30px;
}
.faq-intro p{
    color:var(--color-muted);
    margin:0 0 24px;
}
.accordion{
    background:transparent;
    border:0;
    box-shadow:none;
    list-style:none;
    margin:0;
}
.accordion-item{
    background:var(--color-bg);
    border:1px solid var(--color-line) !important;
    border-radius:14px;
    overflow:hidden;
    margin-bottom:14px;
    box-shadow:none !important;
}
.accordion-title{
    background:transparent !important;
    border:0 !important;
    border-bottom:0;
    color:var(--color-text) !important;
    font-size:16px !important;
    font-weight:700;
    line-height:1.5;
    padding:20px 52px 20px 24px !important;
    position:relative;
    min-height:auto;
    border-bottom:0!important;
    transition:color .2s;
}
.accordion-title:hover,
.accordion-title:focus{
    background:transparent !important;
    color:var(--color-primary) !important;
}
.accordion-title::after{
    content:"+";
    position:absolute;
    right:20px;
    top:50%;
    transform:translateY(-50%);
    width:32px;
    height:32px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:rgba(13,122,112,.1);
    border-radius:8px;
    font-size:22px;
    font-weight:400;
    color:var(--color-primary);
    transition:all .25s;
}
.accordion-item.is-active > .accordion-title::after{
    content:"+";
    transform:translateY(-50%) rotate(45deg);
    background:var(--color-primary);
    color:#fff;
}
.accordion-content{
    background:transparent !important;
    color:var(--color-muted) !important;
    padding:0 24px 22px !important;
    border-top:0 !important;
}
.accordion-content p{
    margin:0;
    font-size:14px;
    line-height:1.8;
    color:var(--color-muted);
}

/* ========== CTA ========== */
.footer-cta{
    background:var(--color-bg);
    border-top:1px solid var(--color-line);
}
.cta-panel{
    position:relative;
    background:linear-gradient(115deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
    border-radius:22px;
    overflow:hidden;
    color:#fff;
    padding:54px 46px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
}
.cta-panel::after{
    content:"";
    position:absolute;
    right:-100px;
    bottom:-150px;
    width:320px;
    height:320px;
    background:rgba(255,255,255,.1);
    border-radius:50%;
}
.cta-copy{
    position:relative;
    z-index:2;
}
.cta-copy h2{
    font-size:27px;
    margin:0 0 8px;
    color:#fff;
}
.cta-copy p{
    color:rgba(255,255,255,.82);
    margin:0;
    font-size:15px;
}
.cta-panel .btn{
    flex:0 0 auto;
    position:relative;
    z-index:2;
}

/* ========== Footer ========== */
.site-footer{
    background:#fff;
    border-top:1px solid var(--color-line);
}
.footer-top{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:40px;
    padding:64px 0 44px;
}
.footer-brand .footer-logo{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
}
.logo-mark{
    width:38px;
    height:38px;
    background:var(--color-primary);
    color:#fff;
    font-size:14px;
    font-weight:800;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:10px;
}
.footer-name{
    font-size:19px;
    font-weight:800;
    color:var(--color-text);
}
.footer-brand p{
    color:var(--color-muted);
    font-size:14px;
    line-height:1.8;
    max-width:340px;
    margin:0;
}
.footer-col h3{
    font-size:14px;
    font-weight:800;
    letter-spacing:.4px;
    margin:0 0 16px;
    color:var(--color-text);
}
.footer-col .footer-link{
    display:block;
    color:var(--color-muted);
    font-size:14px;
    line-height:1.8;
    margin-bottom:7px;
    transition:color .2s;
}
.footer-col .footer-link:hover{
    color:var(--color-primary);
}
.footer-contact{
    display:flex;
    align-items:center;
    align-items:flex-start;
    gap:8px;
    color:var(--color-muted);
    font-size:14px;
    line-height:1.7;
    margin-bottom:10px;
}
.footer-contact i{
    color:var(--color-accent);
    margin-top:3px;
}
.footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:12px 28px;
    padding:20px 0 28px;
    border-top:1px solid var(--color-line);
    color:var(--color-muted);
    font-size:12.5px;
    line-height:1.8;
}
.footer-bottom span{
    margin-right:10px;
}

/* ========== 响应式 ========== */
@media screen and (max-width: 1023px){
    .main-nav, .header-status{
        display:none;
    }
    .menu-toggle{
        display:inline-flex;
    }
    .header-cta{
        height:40px;
        padding:0 16px;
        font-size:13px;
    }
    .footer-top{
        grid-template-columns:1fr 1fr;
    }
    .steps-wrap{
        grid-template-columns:repeat(2,1fr);
    }
}
@media screen and (max-width: 767px){
    .category-hero{
        padding:52px 0 56px;
    }
    .category-hero .hero-title{
        font-size:34px;
    }
    .category-hero .hero-lead{
        font-size:15px;
    }
    .page-section{
        padding:var(--space-section-mobile) 0;
    }
    .section-head{
        margin-bottom:30px;
    }
    .section-head h2{
        font-size:26px;
    }
    .section-head h3{
        font-size:16px;
    }
    .card-feature{
        min-height:300px;
    }
    .card-feature-body{
        padding:32px 24px 28px;
    }
    .card-feature-body h2{
        font-size:21px;
    }
    .card-feature-body p{
        font-size:14px;
    }
    .wide-media{
        min-height:190px;
    }
    .wide-content{
        padding:28px 24px;
    }
    .wide-content h3{
        font-size:19px;
    }
    .steps-wrap{
        grid-template-columns:1fr;
        gap:16px;
    }
    .deepline-section{
        padding:var(--space-section-mobile) 0;
    }
    .cta-panel{
        flex-direction:column;
        text-align:center;
        padding:42px 26px;
        gap:22px;
    }
    .cta-copy h2{
        font-size:23px;
    }
    .footer-top{
        grid-template-columns:1fr;
        gap:32px;
        padding:48px 0 30px;
    }
    .reference-row{
        flex-direction:column;
        gap:12px;
    }
    .ref-links{
        margin-top:18px;
        padding:26px 20px;
    }
    .footer-brand p{
        max-width:100%;
    }
    .grid-container{
        padding-right:20px;
        padding-left:20px;
    }
    .header-tools .header-cta{
        display:none;
    }
}
@media screen and (max-width: 480px){
    .footer-bottom{
        flex-direction:column;
        gap:4px;
    }
    .header-cta{
        display:none;
    }
    .adaptive-mobile-cta{
        display:inline-flex;
    }
}
@media screen and (min-width:641px){
    .mobile-cta-bottom{
        display:none;
    }
}
.mobile-cta-bottom{
    display:none;
}
@media screen and (max-width:640px){
    .mobile-cta-bottom{
        display:inline-flex;
        width:auto;
        height:40px;
        padding:0 17px;
        margin-left:auto;
    }
}