/* roulang page: index */
:root{
            --bg: #0f0b0d;
            --bg-2: #161015;
            --bg-3: #1d1318;
            --panel: #24171d;
            --panel-2: #311e26;
            --paper: #fbf4ee;
            --paper-2: #fffaf7;
            --text: #f4ebe5;
            --muted: #c9b7ad;
            --muted-2: #8f7780;
            --line: rgba(255,255,255,.09);
            --line-2: rgba(255,255,255,.14);
            --accent: #b44f63;
            --accent-2: #7f3650;
            --gold: #c8a25b;
            --gold-2: #f0d49a;
            --shadow: 0 20px 50px rgba(0,0,0,.35);
            --shadow-soft: 0 12px 32px rgba(0,0,0,.18);
            --radius-xl: 30px;
            --radius-lg: 24px;
            --radius-md: 18px;
            --radius-sm: 14px;
            --container: 1180px;
            --space: 24px;
        }

        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body{
            margin: 0;
            font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            color: var(--text);
            background:
                radial-gradient(1200px 700px at 80% -10%, rgba(180,79,99,.22), transparent 58%),
                radial-gradient(900px 500px at 10% 10%, rgba(200,162,91,.10), transparent 55%),
                linear-gradient(180deg, #140d11 0%, #0d090b 100%);
            min-height: 100vh;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body::before{
            content:"";
            position: fixed;
            inset: 0;
            pointer-events: none;
            background-image: linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
            background-size: 32px 32px;
            mask-image: linear-gradient(180deg, rgba(0,0,0,.16), transparent 65%);
            opacity: .3;
            z-index: 0;
        }
        a{
            color: inherit;
            text-decoration: none;
            transition: color .22s ease, transform .22s ease, opacity .22s ease, border-color .22s ease, background-color .22s ease, box-shadow .22s ease;
        }
        img{
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select{
            font: inherit;
        }
        ::selection{
            background: rgba(180,79,99,.26);
            color: #fff;
        }
        :focus-visible{
            outline: 3px solid rgba(240,212,154,.95);
            outline-offset: 3px;
        }

        .container{
            width: min(var(--container), calc(100% - 32px));
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .site-header{
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(14, 10, 12, .78);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .header-inner{
            min-height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
        }
        .brand{
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            letter-spacing: .2px;
            min-width: 0;
        }
        .brand-mark{
            width: 42px;
            height: 42px;
            border-radius: 15px;
            display: grid;
            place-items: center;
            color: #fff;
            font-weight: 900;
            background:
                linear-gradient(145deg, rgba(180,79,99,1), rgba(127,54,80,1)),
                linear-gradient(145deg, rgba(255,255,255,.2), rgba(255,255,255,0));
            box-shadow: inset 0 1px 0 rgba(255,255,255,.14), 0 12px 20px rgba(0,0,0,.25);
            flex: 0 0 auto;
        }
        .brand-text{
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 0;
        }
        .brand-text strong{
            font-size: 15px;
            line-height: 1.1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .brand-text span{
            font-size: 12px;
            color: var(--muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .site-nav{
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .site-nav a{
            position: relative;
            font-size: 14px;
            color: rgba(244,235,229,.82);
            padding: 10px 2px;
            white-space: nowrap;
        }
        .site-nav a::after{
            content:"";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 1.5px;
            background: linear-gradient(90deg, transparent, rgba(240,212,154,.95), transparent);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform .22s ease;
        }
        .site-nav a:hover,
        .site-nav a.active{
            color: #fff;
        }
        .site-nav a:hover::after,
        .site-nav a.active::after{
            transform: scaleX(1);
        }

        .header-actions{
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .menu-btn{
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(255,255,255,.10);
            border-radius: 14px;
            background: rgba(255,255,255,.04);
            color: var(--text);
            cursor: pointer;
            box-shadow: var(--shadow-soft);
            transition: transform .22s ease, background-color .22s ease, border-color .22s ease;
        }
        .menu-btn:hover{
            transform: translateY(-1px);
            background: rgba(255,255,255,.07);
            border-color: rgba(255,255,255,.18);
        }

        .hero{
            padding: 26px 0 18px;
        }
        .hero-shell{
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 24px;
            align-items: stretch;
        }
        .hero-copy{
            padding: 18px 0 12px;
        }
        .eyebrow{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            border-radius: 999px;
            color: #f9ead7;
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.11);
            font-size: 13px;
            letter-spacing: .2px;
        }
        .eyebrow i{
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 0 4px rgba(200,162,91,.18);
            display: inline-block;
        }
        .hero h1{
            margin: 16px 0 14px;
            font-size: clamp(36px, 5vw, 62px);
            line-height: 1.04;
            letter-spacing: -0.03em;
        }
        .hero p{
            margin: 0;
            max-width: 56ch;
            color: rgba(244,235,229,.82);
            font-size: 17px;
            line-height: 1.82;
        }
        .cta-row{
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 22px;
        }
        .btn{
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            min-height: 48px;
            padding: 0 18px;
            border-radius: 16px;
            border: 1px solid transparent;
            cursor: pointer;
            white-space: nowrap;
            font-weight: 700;
            letter-spacing: .2px;
            box-shadow: 0 10px 20px rgba(0,0,0,.16);
            transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease, border-color .22s ease, opacity .22s ease;
        }
        .btn:hover{
            transform: translateY(-2px);
            box-shadow: 0 16px 26px rgba(0,0,0,.20);
        }
        .btn:active{
            transform: translateY(0);
        }
        .btn-primary{
            color: #fff;
            background: linear-gradient(135deg, #c45b72 0%, #8d3954 55%, #6c2c44 100%);
            border-color: rgba(255,255,255,.10);
        }
        .btn-secondary{
            color: var(--text);
            background: rgba(255,255,255,.04);
            border-color: rgba(255,255,255,.12);
        }
        .btn-small{
            min-height: 42px;
            padding: 0 14px;
            border-radius: 14px;
            font-size: 14px;
        }

        .hero-meta{
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 22px;
        }
        .chip{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 36px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.10);
            color: rgba(244,235,229,.86);
            font-size: 13px;
        }
        .chip .dot{
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 0 4px rgba(200,162,91,.14);
        }

        .hero-visual{
            position: relative;
            min-height: 560px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid rgba(255,255,255,.10);
            box-shadow: var(--shadow);
            background:
                linear-gradient(180deg, rgba(20,12,15,.05) 0%, rgba(20,12,15,.22) 100%),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
        }
        .hero-visual::before{
            content:"";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(180deg, rgba(14,9,11,.12) 0%, rgba(14,9,11,.54) 100%),
                radial-gradient(700px 340px at 15% 12%, rgba(180,79,99,.22), transparent 60%),
                radial-gradient(520px 280px at 85% 16%, rgba(200,162,91,.18), transparent 60%);
        }
        .visual-content{
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 22px;
            gap: 16px;
        }
        .visual-top,
        .visual-bottom{
            position: relative;
            z-index: 1;
        }
        .visual-card{
            background: rgba(20,12,15,.56);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: 22px;
            padding: 16px;
            backdrop-filter: blur(12px);
            box-shadow: 0 18px 36px rgba(0,0,0,.18);
        }
        .visual-card .tag-row{
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }
        .tag{
            display: inline-flex;
            align-items: center;
            min-height: 30px;
            padding: 0 10px;
            border-radius: 999px;
            font-size: 12px;
            color: #fff;
            background: rgba(180,79,99,.22);
            border: 1px solid rgba(255,255,255,.10);
        }
        .tag.gold{
            background: rgba(200,162,91,.18);
            color: #fff2da;
        }
        .visual-card h2{
            margin: 0 0 8px;
            font-size: 22px;
            line-height: 1.22;
        }
        .visual-card p{
            margin: 0;
            color: rgba(244,235,229,.78);
            line-height: 1.74;
            font-size: 14px;
        }
        .preview-grid{
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 12px;
            align-items: end;
        }
        .preview-card{
            background: linear-gradient(180deg, #fffaf7 0%, #f6ede7 100%);
            color: #2b1a20;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: 0 18px 36px rgba(0,0,0,.24);
            border: 1px solid rgba(255,255,255,.38);
            transition: transform .24s ease, box-shadow .24s ease;
        }
        .preview-card:hover{
            transform: translateY(-3px);
            box-shadow: 0 22px 42px rgba(0,0,0,.28);
        }
        .preview-card img{
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .preview-card .preview-body{
            padding: 14px 14px 16px;
        }
        .preview-card h3{
            margin: 0 0 8px;
            font-size: 17px;
            line-height: 1.3;
        }
        .preview-card p{
            margin: 0;
            color: rgba(43,26,32,.78);
            font-size: 14px;
            line-height: 1.72;
        }

        .section{
            padding: 18px 0 56px;
        }
        .section-head{
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 18px;
        }
        .section-title-wrap{
            max-width: 720px;
        }
        .section-kicker{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #f3d8be;
            margin-bottom: 10px;
            letter-spacing: .16px;
        }
        .section-kicker::before{
            content:"";
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 0 4px rgba(200,162,91,.12);
        }
        .section-title{
            margin: 0;
            font-size: clamp(24px, 2.2vw, 32px);
            letter-spacing: -.02em;
            line-height: 1.16;
        }
        .section-subtitle{
            margin: 10px 0 0;
            color: rgba(244,235,229,.74);
            line-height: 1.8;
            font-size: 15px;
        }
        .section-action{
            flex: 0 0 auto;
            padding-bottom: 2px;
        }

        .surface-light{
            background: linear-gradient(180deg, #fdf7f2 0%, #fffaf7 100%);
            color: #2d1b21;
            border: 1px solid rgba(255,255,255,.36);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-soft);
            padding: 24px;
            overflow: hidden;
        }

        .feature-grid{
            display: grid;
            grid-template-columns: repeat(4, minmax(0,1fr));
            gap: 16px;
        }
        .feature-card{
            display: flex;
            flex-direction: column;
            min-height: 100%;
            border-radius: 24px;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(247,239,233,.96) 100%);
            border: 1px solid rgba(65,35,47,.10);
            box-shadow: 0 10px 22px rgba(25,14,18,.06);
            transition: transform .22s ease, box-shadow .22s ease;
        }
        .feature-card:hover{
            transform: translateY(-3px);
            box-shadow: 0 18px 30px rgba(25,14,18,.10);
        }
        .feature-card img{
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }
        .feature-body{
            padding: 16px;
            display: grid;
            gap: 10px;
        }
        .feature-body h3{
            margin: 0;
            font-size: 18px;
            line-height: 1.28;
            color: #2c1a20;
        }
        .feature-body p{
            margin: 0;
            color: rgba(44,26,32,.76);
            line-height: 1.72;
            font-size: 14px;
        }
        .mini-badge{
            display: inline-flex;
            align-items: center;
            gap: 6px;
            width: fit-content;
            min-height: 28px;
            padding: 0 10px;
            border-radius: 999px;
            background: rgba(180,79,99,.10);
            color: #8f3250;
            border: 1px solid rgba(180,79,99,.16);
            font-size: 12px;
            font-weight: 700;
        }

        .updates-panel{
            background: linear-gradient(180deg, rgba(255,250,247,.98) 0%, rgba(247,239,233,.98) 100%);
            color: #2d1b21;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255,255,255,.42);
            box-shadow: var(--shadow-soft);
            padding: 18px;
        }
        .updates-grid{
            display: grid;
            grid-template-columns: repeat(2, minmax(0,1fr));
            gap: 14px;
        }
        .update-item{
            display: grid;
            grid-template-columns: 118px 1fr;
            gap: 14px;
            padding: 14px;
            background: rgba(255,255,255,.72);
            border: 1px solid rgba(58,33,42,.10);
            border-radius: 22px;
            box-shadow: 0 10px 20px rgba(25,14,18,.05);
            transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
        }
        .update-item:hover{
            transform: translateY(-3px);
            box-shadow: 0 18px 28px rgba(25,14,18,.08);
            border-color: rgba(180,79,99,.18);
        }
        .update-thumb{
            overflow: hidden;
            border-radius: 18px;
            background: #e8ddd6;
            box-shadow: inset 0 1px 0 rgba(255,255,255,.6);
        }
        .update-thumb img{
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
        }
        .update-content{
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .meta-line{
            display: flex;
            flex-wrap: wrap;
            gap: 8px 10px;
            align-items: center;
            font-size: 12px;
            color: rgba(45,27,33,.64);
        }
        .meta-line .pill{
            display: inline-flex;
            align-items: center;
            min-height: 26px;
            padding: 0 9px;
            border-radius: 999px;
            background: rgba(180,79,99,.08);
            color: #943953;
            border: 1px solid rgba(180,79,99,.10);
            font-weight: 700;
        }
        .update-content h3{
            margin: 0;
            font-size: 18px;
            line-height: 1.35;
            color: #2a1820;
        }
        .update-content h3 a:hover{
            color: #8c3752;
        }
        .update-content p{
            margin: 0;
            color: rgba(45,27,33,.74);
            line-height: 1.75;
            font-size: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .update-foot{
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            padding-top: 2px;
        }
        .text-link{
            color: #8f3250;
            font-weight: 700;
            border-bottom: 1px solid transparent;
        }
        .text-link:hover{
            border-bottom-color: rgba(143,50,80,.45);
        }
        .empty-state{
            padding: 38px 18px;
            text-align: center;
            color: rgba(45,27,33,.68);
        }
        .empty-state strong{
            display: block;
            margin-bottom: 8px;
            color: #2a1820;
            font-size: 18px;
        }

        .showcase-grid{
            display: grid;
            grid-template-columns: 1.12fr .88fr;
            gap: 16px;
        }
        .showcase-card{
            position: relative;
            border-radius: 26px;
            overflow: hidden;
            min-height: 360px;
            border: 1px solid rgba(255,255,255,.12);
            box-shadow: var(--shadow);
            background: linear-gradient(180deg, rgba(22,16,20,.04) 0%, rgba(22,16,20,.24) 100%);
        }
        .showcase-card img{
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .showcase-card::after{
            content:"";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(180deg, rgba(11,8,10,.08) 0%, rgba(11,8,10,.76) 100%),
                radial-gradient(500px 240px at 18% 14%, rgba(180,79,99,.22), transparent 60%);
        }
        .showcase-body{
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            height: 100%;
            padding: 22px;
        }
        .showcase-body h3{
            margin: 8px 0 8px;
            font-size: 24px;
            line-height: 1.16;
        }
        .showcase-body p{
            margin: 0;
            color: rgba(244,235,229,.78);
            line-height: 1.76;
            max-width: 42ch;
        }
        .compact-stack{
            display: grid;
            gap: 16px;
        }
        .compact-card{
            background: linear-gradient(180deg, #fffaf7 0%, #f7eee7 100%);
            color: #2d1b21;
            border-radius: 26px;
            border: 1px solid rgba(255,255,255,.40);
            box-shadow: var(--shadow-soft);
            overflow: hidden;
            display: grid;
            grid-template-columns: 136px 1fr;
            min-height: 172px;
        }
        .compact-card img{
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .compact-body{
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .compact-body h3{
            margin: 0;
            font-size: 18px;
            line-height: 1.32;
            color: #2a1820;
        }
        .compact-body p{
            margin: 0;
            color: rgba(45,27,33,.76);
            line-height: 1.72;
            font-size: 14px;
        }
        .compact-body .mini-link{
            margin-top: auto;
            color: #8c3752;
            font-weight: 700;
        }

        .reading-panel{
            margin-top: 16px;
            display: grid;
            grid-template-columns: repeat(3, minmax(0,1fr));
            gap: 14px;
        }
        .reading-stat{
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.10);
            border-radius: 24px;
            padding: 18px;
            box-shadow: 0 12px 24px rgba(0,0,0,.10);
        }
        .reading-stat .num{
            font-size: 28px;
            font-weight: 900;
            letter-spacing: -.03em;
            color: #fff;
            line-height: 1;
        }
        .reading-stat .label{
            margin-top: 8px;
            color: rgba(244,235,229,.72);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-list{
            display: grid;
            gap: 12px;
        }
        details.faq-item{
            background: linear-gradient(180deg, rgba(255,250,247,.98) 0%, rgba(247,239,233,.98) 100%);
            color: #2d1b21;
            border: 1px solid rgba(255,255,255,.38);
            border-radius: 22px;
            box-shadow: var(--shadow-soft);
            overflow: hidden;
        }
        details.faq-item[open]{
            border-color: rgba(180,79,99,.20);
        }
        details.faq-item summary{
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 18px 18px 20px;
            font-weight: 800;
            line-height: 1.45;
        }
        details.faq-item summary::-webkit-details-marker{
            display: none;
        }
        details.faq-item summary .mark{
            flex: 0 0 auto;
            width: 30px;
            height: 30px;
            border-radius: 999px;
            display: grid;
            place-items: center;
            background: rgba(180,79,99,.10);
            color: #8f3250;
            border: 1px solid rgba(180,79,99,.14);
            transition: transform .22s ease, background-color .22s ease;
        }
        details.faq-item[open] summary .mark{
            transform: rotate(45deg);
            background: rgba(200,162,91,.16);
            color: #815c13;
        }
        .faq-content{
            padding: 0 20px 18px;
            color: rgba(45,27,33,.76);
            line-height: 1.82;
            font-size: 15px;
        }

        .cta-panel{
            background:
                radial-gradient(900px 420px at 20% 20%, rgba(180,79,99,.22), transparent 55%),
                linear-gradient(135deg, #1d1318 0%, #2b1822 50%, #191014 100%);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255,255,255,.11);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .cta-inner{
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 18px;
            align-items: center;
            padding: 28px;
        }
        .cta-inner h2{
            margin: 0 0 10px;
            font-size: clamp(24px, 2.4vw, 34px);
            line-height: 1.16;
        }
        .cta-inner p{
            margin: 0;
            max-width: 60ch;
            color: rgba(244,235,229,.78);
            line-height: 1.8;
        }
        .cta-actions{
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-end;
        }

        .site-footer{
            padding: 30px 0 36px;
            border-top: 1px solid rgba(255,255,255,.08);
            background: rgba(10,8,9,.45);
            margin-top: 18px;
        }
        .footer-grid{
            display: grid;
            grid-template-columns: 1.2fr .8fr .8fr;
            gap: 18px;
            align-items: start;
        }
        .footer-brand{
            display: grid;
            gap: 12px;
        }
        .footer-brand p{
            margin: 0;
            color: rgba(244,235,229,.72);
            line-height: 1.78;
            max-width: 44ch;
        }
        .footer-title{
            margin: 0 0 12px;
            font-size: 15px;
            color: #fff;
        }
        .footer-links{
            display: grid;
            gap: 10px;
        }
        .footer-links a{
            color: rgba(244,235,229,.78);
            width: fit-content;
        }
        .footer-links a:hover{
            color: #fff;
        }
        .footer-note{
            margin-top: 20px;
            padding-top: 18px;
            border-top: 1px solid rgba(255,255,255,.08);
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            color: rgba(244,235,229,.56);
            font-size: 13px;
            line-height: 1.8;
        }

        .surface-divider{
            height: 1px;
            width: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
            margin: 24px 0;
        }

        @media (max-width: 1024px){
            .hero-shell,
            .showcase-grid{
                grid-template-columns: 1fr;
            }
            .hero-visual{
                min-height: 480px;
            }
            .feature-grid{
                grid-template-columns: repeat(2, minmax(0,1fr));
            }
            .updates-grid{
                grid-template-columns: 1fr;
            }
            .reading-panel{
                grid-template-columns: 1fr;
            }
            .footer-grid{
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand{
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px){
            .header-inner{
                min-height: 70px;
            }
            .menu-btn{
                display: inline-flex;
            }
            .site-nav{
                position: absolute;
                top: calc(100% + 10px);
                left: 16px;
                right: 16px;
                display: grid;
                gap: 0;
                padding: 12px;
                background: rgba(18,12,15,.96);
                border: 1px solid rgba(255,255,255,.10);
                border-radius: 20px;
                box-shadow: var(--shadow);
                transform: translateY(-10px);
                opacity: 0;
                visibility: hidden;
                pointer-events: none;
                transition: opacity .22s ease, transform .22s ease, visibility .22s ease;
            }
            .site-nav.open{
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
            }
            .site-nav a{
                padding: 14px 10px;
                border-radius: 14px;
            }
            .site-nav a::after{
                display: none;
            }
            .site-nav a:hover,
            .site-nav a.active{
                background: rgba(255,255,255,.05);
            }
            .hero{
                padding-top: 18px;
            }
            .hero-shell{
                gap: 18px;
            }
            .hero-copy{
                padding-top: 8px;
            }
            .hero h1{
                font-size: clamp(32px, 8vw, 46px);
            }
            .hero p{
                font-size: 16px;
            }
            .cta-row .btn{
                width: 100%;
            }
            .hero-visual{
                min-height: 420px;
            }
            .preview-grid{
                grid-template-columns: 1fr;
            }
            .feature-grid{
                grid-template-columns: 1fr;
            }
            .compact-card{
                grid-template-columns: 1fr;
            }
            .compact-card img{
                aspect-ratio: 16/10;
            }
            .cta-inner{
                grid-template-columns: 1fr;
                padding: 22px;
            }
            .cta-actions{
                justify-content: stretch;
            }
            .cta-actions .btn{
                width: 100%;
            }
            .section-head{
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid{
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px){
            .container{
                width: min(var(--container), calc(100% - 22px));
            }
            .header-inner{
                gap: 12px;
            }
            .brand-text span{
                display: none;
            }
            .hero-visual{
                min-height: 360px;
                border-radius: 24px;
            }
            .visual-content{
                padding: 16px;
            }
            .visual-card h2{
                font-size: 18px;
            }
            .surface-light,
            .updates-panel{
                padding: 16px;
                border-radius: 24px;
            }
            .update-item{
                grid-template-columns: 1fr;
            }
            .update-thumb img{
                aspect-ratio: 16/10;
            }
            .section{
                padding-bottom: 42px;
            }
            .section-title{
                font-size: 22px;
            }
            .section-subtitle,
            .hero p,
            .feature-body p,
            .compact-body p,
            .faq-content,
            .cta-inner p{
                font-size: 14px;
                line-height: 1.78;
            }
            details.faq-item summary{
                padding: 16px;
                font-size: 15px;
            }
            .faq-content{
                padding: 0 16px 16px;
            }
            .footer-note{
                font-size: 12px;
            }
        }

/* roulang page: article */
:root{
            --bg: #0f0b0d;
            --bg-2: #161015;
            --bg-3: #1d1318;
            --panel: #24171d;
            --panel-2: #311e26;
            --paper: #fbf4ee;
            --paper-2: #fffaf7;
            --text: #f4ebe5;
            --muted: #c9b7ad;
            --muted-2: #8f7780;
            --line: rgba(255,255,255,.09);
            --line-2: rgba(255,255,255,.14);
            --accent: #b44f63;
            --accent-2: #7f3650;
            --gold: #c8a25b;
            --gold-2: #f0d49a;
            --shadow: 0 20px 50px rgba(0,0,0,.35);
            --shadow-soft: 0 12px 32px rgba(0,0,0,.18);
            --radius-xl: 30px;
            --radius-lg: 24px;
            --radius-md: 18px;
            --radius-sm: 14px;
            --container: 1180px;
            --space: 24px;
        }

        *{ box-sizing: border-box; }
        html{ scroll-behavior: smooth; }
        body{
            margin: 0;
            font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            color: var(--text);
            background:
                radial-gradient(1200px 700px at 80% -10%, rgba(180,79,99,.22), transparent 58%),
                radial-gradient(900px 500px at 10% 10%, rgba(200,162,91,.10), transparent 55%),
                linear-gradient(180deg, #140d11 0%, #0d090b 100%);
            min-height: 100vh;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body::before{
            content:"";
            position: fixed;
            inset: 0;
            pointer-events: none;
            background-image:
                linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
            background-size: 32px 32px;
            mask-image: linear-gradient(180deg, rgba(0,0,0,.16), transparent 65%);
            opacity: .3;
            z-index: 0;
        }
        a{
            color: inherit;
            text-decoration: none;
            transition: color .22s ease, transform .22s ease, opacity .22s ease, border-color .22s ease, background-color .22s ease, box-shadow .22s ease;
        }
        a:hover{ color: inherit; }
        img{
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select{
            font: inherit;
        }
        :focus{ outline: none; }
        :focus-visible{
            outline: 3px solid rgba(240,212,154,.85);
            outline-offset: 2px;
        }

        ::selection{
            background: rgba(180,79,99,.28);
            color: #fff;
        }
        ::-webkit-scrollbar{ width: 10px; height: 10px; }
        ::-webkit-scrollbar-thumb{
            background: linear-gradient(180deg, rgba(180,79,99,.55), rgba(127,54,80,.75));
            border-radius: 999px;
            border: 2px solid rgba(13,9,11,.8);
        }
        ::-webkit-scrollbar-track{ background: rgba(255,255,255,.03); }

        .container{
            width: min(var(--container), calc(100% - 32px));
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        .site-header{
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(14, 10, 12, .78);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .header-inner{
            min-height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
        }
        .brand{
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            letter-spacing: .2px;
            min-width: 0;
        }
        .brand-mark{
            width: 42px;
            height: 42px;
            border-radius: 15px;
            display: grid;
            place-items: center;
            color: #fff;
            font-weight: 900;
            background:
                linear-gradient(145deg, rgba(180,79,99,1), rgba(127,54,80,1)),
                linear-gradient(145deg, rgba(255,255,255,.2), rgba(255,255,255,0));
            box-shadow: inset 0 1px 0 rgba(255,255,255,.14), 0 12px 20px rgba(0,0,0,.25);
            flex: 0 0 auto;
        }
        .brand-text{
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 0;
        }
        .brand-text strong{
            font-size: 15px;
            line-height: 1.1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .brand-text span{
            font-size: 12px;
            color: var(--muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .site-nav{
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .site-nav a{
            position: relative;
            font-size: 14px;
            color: rgba(244,235,229,.82);
            padding: 10px 2px;
            white-space: nowrap;
        }
        .site-nav a::after{
            content:"";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 1.5px;
            background: linear-gradient(90deg, transparent, rgba(240,212,154,.95), transparent);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform .22s ease;
        }
        .site-nav a:hover,
        .site-nav a.active{
            color: #fff;
        }
        .site-nav a:hover::after,
        .site-nav a.active::after{
            transform: scaleX(1);
        }
        .header-actions{
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .menu-btn{
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(255,255,255,.10);
            border-radius: 14px;
            background: rgba(255,255,255,.04);
            color: var(--text);
            cursor: pointer;
            box-shadow: var(--shadow-soft);
            transition: transform .22s ease, background-color .22s ease, border-color .22s ease;
        }
        .menu-btn:hover{
            transform: translateY(-1px);
            background: rgba(255,255,255,.07);
            border-color: rgba(255,255,255,.18);
        }

        .page-progress{
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            width: 0;
            background: linear-gradient(90deg, var(--gold), var(--accent), var(--gold-2));
            z-index: 100;
            box-shadow: 0 0 18px rgba(200,162,91,.45);
        }

        .hero-banner{
            position: relative;
            padding: 28px 0 18px;
            z-index: 1;
        }
        .hero-banner::before{
            content:"";
            position: absolute;
            inset: 0 0 auto 0;
            height: 100%;
            background:
                linear-gradient(180deg, rgba(20,13,17,.08), rgba(13,9,11,.08)),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: .18;
            pointer-events: none;
            mask-image: linear-gradient(180deg, rgba(0,0,0,.95), rgba(0,0,0,.25) 72%, transparent 100%);
        }
        .hero-grid{
            display: grid;
            grid-template-columns: 1.08fr .92fr;
            gap: 24px;
            align-items: stretch;
        }
        .hero-copy{
            padding: 18px 0 12px;
            position: relative;
        }
        .eyebrow,
        .section-chip,
        .mini-label,
        .visual-tag{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: .2px;
            border: 1px solid rgba(200,162,91,.22);
            background: linear-gradient(180deg, rgba(200,162,91,.14), rgba(200,162,91,.06));
            color: #ffe7bc;
            box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
        }
        .hero-title{
            margin: 16px 0 14px;
            font-size: clamp(34px, 4.8vw, 64px);
            line-height: .98;
            letter-spacing: -.02em;
            font-weight: 900;
            text-wrap: balance;
        }
        .hero-summary{
            margin: 0;
            max-width: 56rem;
            font-size: 16px;
            line-height: 1.9;
            color: rgba(244,235,229,.84);
        }
        .hero-meta{
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 22px;
        }
        .meta-pill{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,.10);
            background: rgba(255,255,255,.05);
            color: rgba(244,235,229,.88);
            font-size: 13px;
            box-shadow: var(--shadow-soft);
        }
        .hero-actions{
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }
        .btn{
            border: 0;
            min-height: 48px;
            padding: 0 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: 16px;
            font-weight: 700;
            letter-spacing: .1px;
            cursor: pointer;
            transition: transform .22s ease, background-color .22s ease, box-shadow .22s ease, border-color .22s ease, color .22s ease, opacity .22s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn:hover{
            transform: translateY(-1px);
        }
        .btn:active{
            transform: translateY(1px);
        }
        .btn-primary{
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-2));
            box-shadow: 0 18px 34px rgba(180,79,99,.28);
        }
        .btn-primary:hover{
            color: #fff;
            box-shadow: 0 22px 44px rgba(180,79,99,.34);
        }
        .btn-secondary{
            color: var(--text);
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.12);
            box-shadow: var(--shadow-soft);
        }
        .btn-secondary:hover{
            color: #fff;
            background: rgba(255,255,255,.08);
            border-color: rgba(255,255,255,.18);
        }

        .hero-visual{
            min-height: 420px;
        }
        .visual-panel{
            position: relative;
            overflow: hidden;
            min-height: 100%;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255,255,255,.10);
            box-shadow: var(--shadow);
            background: linear-gradient(180deg, rgba(49,30,38,.92), rgba(20,13,17,.92));
        }
        .visual-panel::after{
            content:"";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13,9,11,.10), rgba(13,9,11,.52));
            pointer-events: none;
        }
        .visual-bg{
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: saturate(1.05) contrast(1.02);
            opacity: .52;
        }
        .visual-overlay{
            position: relative;
            z-index: 1;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 18px;
            padding: 22px;
        }
        .visual-card{
            display: grid;
            grid-template-columns: 132px 1fr;
            gap: 16px;
            align-items: center;
            padding: 16px;
            border-radius: 22px;
            border: 1px solid rgba(255,255,255,.12);
            background: rgba(13,9,11,.48);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-soft);
        }
        .visual-card img{
            width: 100%;
            aspect-ratio: 3 / 4;
            object-fit: cover;
            border-radius: 18px;
            box-shadow: 0 14px 28px rgba(0,0,0,.28);
        }
        .visual-card strong{
            display: block;
            font-size: 22px;
            line-height: 1.15;
            margin-top: 10px;
            color: #fff;
        }
        .visual-card p{
            margin: 10px 0 0;
            color: rgba(244,235,229,.78);
            line-height: 1.75;
            font-size: 14px;
        }
        .visual-notes{
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-start;
        }
        .visual-notes span{
            padding: 10px 14px;
            border-radius: 999px;
            background: rgba(255,255,255,.08);
            border: 1px solid rgba(255,255,255,.12);
            color: #fff;
            font-size: 13px;
            backdrop-filter: blur(8px);
        }

        .article-shell{
            padding: 12px 0 6px;
        }
        .article-grid{
            display: grid;
            grid-template-columns: minmax(0, 1.42fr) minmax(290px, .72fr);
            gap: 24px;
            align-items: start;
        }
        .article-card{
            background: linear-gradient(180deg, var(--paper-2), var(--paper));
            color: #2a1e24;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(48,30,38,.08);
            box-shadow: 0 18px 40px rgba(0,0,0,.14);
            overflow: hidden;
            padding: 30px;
        }
        .crumbs{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            color: #735763;
            font-size: 13px;
        }
        .crumbs a{
            color: var(--accent-2);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-heading{
            margin-top: 14px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(48,30,38,.12);
        }
        .article-heading h2{
            margin: 12px 0 14px;
            font-size: clamp(28px, 3.2vw, 42px);
            line-height: 1.1;
            letter-spacing: -.02em;
            color: #1c1217;
            font-weight: 900;
            text-wrap: balance;
        }
        .article-info{
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: #6e5966;
        }
        .article-info span{
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 11px;
            border-radius: 999px;
            background: rgba(180,79,99,.06);
            border: 1px solid rgba(180,79,99,.10);
        }
        .article-body{
            padding-top: 22px;
            font-size: 16px;
            line-height: 1.95;
            color: #36242d;
        }
        .article-body p{
            margin: 0 0 1em;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4{
            color: #1d1217;
            line-height: 1.28;
            margin: 1.7em 0 .75em;
            text-wrap: balance;
        }
        .article-body h2{
            font-size: 24px;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }
        .article-body h3{
            font-size: 20px;
        }
        .article-body h4{
            font-size: 18px;
        }
        .article-body ul,
        .article-body ol{
            padding-left: 1.3rem;
            margin: 0 0 1em;
        }
        .article-body li{
            margin: .45em 0;
        }
        .article-body blockquote{
            margin: 1.3em 0;
            padding: 18px 18px 18px 20px;
            border-radius: 18px;
            background: linear-gradient(180deg, rgba(180,79,99,.07), rgba(180,79,99,.03));
            border: 1px solid rgba(180,79,99,.16);
            color: #5b3e49;
            position: relative;
        }
        .article-body blockquote::before{
            content:"";
            position: absolute;
            left: 0;
            top: 14px;
            bottom: 14px;
            width: 4px;
            border-radius: 999px;
            background: linear-gradient(180deg, var(--accent), var(--gold));
        }
        .article-body img{
            max-width: 100%;
            height: auto;
            display: block;
            margin: 1.1em auto;
            border-radius: 18px;
            box-shadow: 0 14px 28px rgba(0,0,0,.10);
        }
        .article-body figure{
            margin: 1.2em 0;
        }
        .article-body figcaption{
            margin-top: 8px;
            font-size: 13px;
            color: #7c6471;
            text-align: center;
        }
        .article-body a{
            color: var(--accent-2);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body hr{
            border: 0;
            border-top: 1px solid rgba(48,30,38,.12);
            margin: 1.5em 0;
        }
        .article-body table{
            width: 100%;
            border-collapse: collapse;
            margin: 1.2em 0;
            overflow: hidden;
            border-radius: 16px;
            box-shadow: 0 0 0 1px rgba(48,30,38,.10);
        }
        .article-body th,
        .article-body td{
            border: 1px solid rgba(48,30,38,.10);
            padding: 11px 12px;
            text-align: left;
            vertical-align: top;
        }
        .article-body th{
            background: rgba(180,79,99,.08);
            color: #341f29;
        }
        .article-bottom{
            padding-top: 20px;
            margin-top: 20px;
            border-top: 1px solid rgba(48,30,38,.12);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
        }
        .tag-row{
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag{
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            border-radius: 999px;
            font-size: 13px;
            background: rgba(180,79,99,.08);
            border: 1px solid rgba(180,79,99,.14);
            color: #654150;
        }
        .article-actions{
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .article-side{
            position: sticky;
            top: 94px;
            display: grid;
            gap: 16px;
        }
        .side-card{
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: rgba(34,21,28,.92);
            border: 1px solid rgba(255,255,255,.09);
            box-shadow: var(--shadow-soft);
        }
        .cover-card{
            background: linear-gradient(180deg, rgba(49,30,38,.98), rgba(27,17,22,.98));
        }
        .cover-card img{
            width: 100%;
            aspect-ratio: 4 / 5;
            object-fit: cover;
        }
        .cover-copy{
            padding: 18px;
        }
        .cover-copy h3{
            margin: 10px 0 8px;
            font-size: 20px;
            line-height: 1.3;
            color: #fff;
        }
        .cover-copy p{
            margin: 0;
            color: rgba(244,235,229,.78);
            font-size: 14px;
            line-height: 1.8;
        }
        .quick-card,
        .stats-card{
            padding: 18px;
        }
        .quick-card h3,
        .stats-card h3{
            margin: 0 0 14px;
            font-size: 18px;
            color: #fff;
        }
        .quick-list{
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 10px;
        }
        .quick-list a{
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 15px;
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.08);
            color: rgba(244,235,229,.92);
        }
        .quick-list a::after{
            content: "→";
            color: rgba(240,212,154,.95);
            font-weight: 800;
        }
        .quick-list a:hover{
            background: rgba(255,255,255,.08);
            transform: translateY(-1px);
        }
        .stats-grid{
            display: grid;
            grid-template-columns: repeat(2, minmax(0,1fr));
            gap: 12px;
        }
        .stats-grid div{
            padding: 14px;
            border-radius: 16px;
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.08);
        }
        .stats-grid strong{
            display: block;
            color: #fff;
            font-size: 16px;
            margin-bottom: 4px;
        }
        .stats-grid span{
            display: block;
            color: rgba(244,235,229,.72);
            font-size: 13px;
            line-height: 1.6;
        }

        .section-head{
            margin-bottom: 18px;
        }
        .section-head h2{
            margin: 12px 0 10px;
            font-size: clamp(24px, 2.5vw, 34px);
            line-height: 1.15;
            color: #fff;
            font-weight: 900;
            text-wrap: balance;
        }
        .section-head p{
            margin: 0;
            max-width: 58rem;
            color: rgba(244,235,229,.76);
            line-height: 1.9;
        }

        .related-section{
            padding: 26px 0 8px;
        }
        .related-grid{
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 16px;
        }
        .related-card{
            display: grid;
            grid-template-columns: 110px 1fr;
            gap: 14px;
            padding: 14px;
            border-radius: 22px;
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.08);
            box-shadow: var(--shadow-soft);
            overflow: hidden;
            min-height: 150px;
        }
        .related-card:hover{
            transform: translateY(-2px);
            background: rgba(255,255,255,.07);
            border-color: rgba(255,255,255,.14);
        }
        .related-card img{
            width: 100%;
            height: 100%;
            min-height: 122px;
            object-fit: cover;
            border-radius: 18px;
        }
        .related-copy{
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }
        .related-copy span{
            display: inline-flex;
            align-items: center;
            width: fit-content;
            margin-bottom: 10px;
            padding: 6px 10px;
            border-radius: 999px;
            font-size: 12px;
            color: #ffe8bd;
            background: rgba(200,162,91,.12);
            border: 1px solid rgba(200,162,91,.18);
        }
        .related-copy h3{
            margin: 0 0 8px;
            font-size: 18px;
            line-height: 1.25;
            color: #fff;
            font-weight: 800;
        }
        .related-copy p{
            margin: 0;
            color: rgba(244,235,229,.74);
            font-size: 14px;
            line-height: 1.75;
        }

        .faq-section{
            padding: 26px 0 8px;
        }
        .faq-grid{
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 14px;
        }
        details.faq-item{
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.08);
            border-radius: 20px;
            box-shadow: var(--shadow-soft);
            overflow: hidden;
        }
        details.faq-item[open]{
            background: rgba(255,255,255,.07);
            border-color: rgba(255,255,255,.12);
        }
        .faq-question{
            list-style: none;
            cursor: pointer;
            padding: 18px 18px 16px;
            font-weight: 800;
            font-size: 16px;
            line-height: 1.4;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .faq-question::-webkit-details-marker{ display:none; }
        .faq-question::after{
            content:"+";
            color: rgba(240,212,154,.95);
            font-size: 20px;
            line-height: 1;
            flex: 0 0 auto;
        }
        details[open] .faq-question::after{
            content:"–";
        }
        .faq-answer{
            padding: 0 18px 18px;
            color: rgba(244,235,229,.78);
            line-height: 1.85;
            font-size: 14px;
        }

        .cta-section{
            padding: 26px 0 22px;
        }
        .cta-panel{
            border-radius: var(--radius-xl);
            background:
                radial-gradient(900px 360px at 20% 0%, rgba(180,79,99,.24), transparent 54%),
                linear-gradient(180deg, rgba(38,23,31,.98), rgba(17,11,14,.98));
            border: 1px solid rgba(255,255,255,.09);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .cta-inner{
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 28px;
        }
        .cta-inner h2{
            margin: 10px 0 10px;
            font-size: clamp(24px, 3vw, 36px);
            line-height: 1.15;
            color: #fff;
            font-weight: 900;
            text-wrap: balance;
        }
        .cta-inner p{
            margin: 0;
            max-width: 58rem;
            color: rgba(244,235,229,.8);
            line-height: 1.85;
        }
        .cta-actions{
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-end;
            min-width: 260px;
        }

        .empty-card{
            padding: 42px 26px;
            border-radius: var(--radius-xl);
            background: linear-gradient(180deg, var(--paper-2), var(--paper));
            color: #2a1e24;
            border: 1px solid rgba(48,30,38,.08);
            box-shadow: 0 18px 40px rgba(0,0,0,.14);
            text-align: center;
        }
        .empty-card h2{
            margin: 0 0 12px;
            font-size: 28px;
            font-weight: 900;
            color: #1b1216;
        }
        .empty-card p{
            margin: 0 0 20px;
            color: #6f5865;
            line-height: 1.85;
        }

        .site-footer{
            margin-top: 10px;
            background: rgba(9,6,8,.76);
            border-top: 1px solid rgba(255,255,255,.08);
            position: relative;
            z-index: 1;
        }
        .site-footer .container{
            padding-top: 24px;
            padding-bottom: 22px;
        }
        .footer-grid{
            display: grid;
            grid-template-columns: 1.25fr .75fr .8fr;
            gap: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .footer-brand p{
            margin: 16px 0 0;
            color: rgba(244,235,229,.76);
            line-height: 1.85;
            max-width: 38rem;
        }
        .footer-title{
            margin: 2px 0 14px;
            color: #fff;
            font-size: 16px;
            font-weight: 800;
        }
        .footer-links{
            display: grid;
            gap: 10px;
        }
        .footer-links a{
            color: rgba(244,235,229,.78);
            width: fit-content;
        }
        .footer-links a:hover{
            color: #fff;
            transform: translateX(2px);
        }
        .footer-note{
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding-top: 18px;
            font-size: 13px;
            color: rgba(244,235,229,.66);
            line-height: 1.7;
        }

        .back-to-top{
            position: fixed;
            right: 18px;
            bottom: 18px;
            width: 48px;
            height: 48px;
            border-radius: 16px;
            border: 1px solid rgba(255,255,255,.12);
            background: rgba(36,23,29,.84);
            color: #fff;
            box-shadow: var(--shadow-soft);
            z-index: 60;
            opacity: 0;
            pointer-events: none;
            transform: translateY(8px);
            transition: opacity .22s ease, transform .22s ease, background-color .22s ease, border-color .22s ease;
        }
        .back-to-top:hover{
            background: rgba(49,30,38,.96);
            border-color: rgba(255,255,255,.2);
            transform: translateY(6px);
        }
        .back-to-top.is-show{
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

        @media (max-width: 1200px){
            .hero-grid{ grid-template-columns: 1fr 0.98fr; }
            .related-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
            .faq-grid{ grid-template-columns: 1fr; }
        }

        @media (max-width: 1024px){
            .hero-grid,
            .article-grid,
            .cta-inner{
                grid-template-columns: 1fr;
            }
            .hero-visual{
                min-height: 360px;
            }
            .article-side{
                position: static;
            }
            .cta-inner{
                display: grid;
            }
            .cta-actions{
                justify-content: flex-start;
            }
            .footer-grid{
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid > :first-child{
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px){
            .header-inner{
                min-height: 68px;
            }
            .menu-btn{
                display: inline-flex;
            }
            .site-nav{
                position: absolute;
                left: 16px;
                right: 16px;
                top: calc(100% + 12px);
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 10px;
                border-radius: 20px;
                background: rgba(18,12,15,.98);
                border: 1px solid rgba(255,255,255,.09);
                box-shadow: var(--shadow);
            }
            .site-nav.is-open{
                display: flex;
            }
            .site-nav a{
                padding: 12px 14px;
                border-radius: 14px;
            }
            .site-nav a::after{ display: none; }
            .site-nav a:hover,
            .site-nav a.active{
                background: rgba(255,255,255,.06);
            }
            .hero-banner{ padding-top: 18px; }
            .hero-title{ font-size: clamp(30px, 9vw, 46px); }
            .visual-card{
                grid-template-columns: 106px 1fr;
            }
            .article-card{ padding: 22px; }
            .related-grid{
                grid-template-columns: 1fr;
            }
            .related-card{
                grid-template-columns: 98px 1fr;
            }
            .footer-grid{
                grid-template-columns: 1fr;
            }
            .footer-grid > :first-child{
                grid-column: auto;
            }
            .footer-note{
                flex-direction: column;
                align-items: flex-start;
            }
            .container{
                width: min(var(--container), calc(100% - 24px));
            }
        }

        @media (max-width: 520px){
            .hero-banner{
                padding-top: 12px;
            }
            .hero-summary,
            .section-head p,
            .cta-inner p,
            .footer-brand p,
            .article-body{
                font-size: 15px;
            }
            .hero-actions,
            .article-actions,
            .cta-actions{
                width: 100%;
            }
            .hero-actions .btn,
            .article-actions .btn,
            .cta-actions .btn{
                width: 100%;
            }
            .visual-overlay{
                padding: 16px;
            }
            .visual-card{
                grid-template-columns: 1fr;
            }
            .visual-card img{
                max-width: 168px;
            }
            .stats-grid{
                grid-template-columns: 1fr;
            }
            .article-card{
                padding: 18px;
            }
            .article-heading h2{
                font-size: 28px;
            }
            .cta-inner{
                padding: 20px;
            }
            .cta-panel,
            .article-card,
            .empty-card{
                border-radius: 22px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}