/* roulang page: index */
:root{
            --bg:#f4f8fc;
            --surface:#ffffff;
            --surface-soft:#edf5fb;
            --ink:#18324b;
            --muted:#6b8093;
            --line:#dbe7f0;
            --primary:#1769d2;
            --primary-dark:#0f4fa5;
            --secondary:#39a6b8;
            --accent:#ef9b56;
            --success:#2b9c83;
            --radius-lg:28px;
            --radius-md:18px;
            --radius-sm:12px;
            --shadow:0 18px 50px rgba(38,79,116,.10);
            --shadow-sm:0 8px 24px rgba(38,79,116,.08);
            --container:1180px;
            --section:104px;
            --nav-height:72px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--bg);
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.75;
            padding-bottom:110px;
        }
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--primary)}
        img,svg{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(23,105,210,.30);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
        .section{padding:var(--section) 0}
        .eyebrow{
            color:var(--primary);
            font-size:12px;
            font-weight:800;
            letter-spacing:.16em;
            text-transform:uppercase;
            margin-bottom:14px;
        }
        .section-head{max-width:690px;margin-bottom:42px}
        .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:0 0 16px;font-weight:800;letter-spacing:-.03em}
        .section-head p{color:var(--muted);margin:0;font-size:17px}
        .dock-wrap{position:relative;z-index:20;padding-top:24px}
        .dock{
            min-height:var(--nav-height);
            display:flex;
            align-items:center;
            gap:18px;
            padding:10px 12px 10px 22px;
            background:rgba(255,255,255,.94);
            border:1px solid rgba(208,224,235,.95);
            border-radius:25px;
            box-shadow:var(--shadow-sm);
            backdrop-filter:blur(14px);
        }
        .brand{
            display:flex;align-items:center;gap:10px;white-space:nowrap;
            font-weight:800;font-size:15px;line-height:1.25;
        }
        .brand-mark{
            width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
            color:#fff;background:var(--primary);font-size:17px;font-weight:900;
            box-shadow:0 7px 16px rgba(23,105,210,.24)
        }
        .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
        .nav-links a,.nav-search{
            min-height:42px;display:inline-flex;align-items:center;justify-content:center;
            padding:8px 14px;border-radius:12px;color:var(--muted);font-size:14px;font-weight:700;
        }
        .nav-links a:hover,.nav-links a.active{color:var(--primary);background:#eaf3ff}
        .nav-search{border:1px solid var(--line);background:#f8fbfe;color:var(--ink);gap:7px}
        .nav-search:hover{border-color:#a9c7e6;color:var(--primary)}
        .menu-toggle{display:none;border:0;background:#edf5fb;color:var(--primary);border-radius:11px;width:42px;height:42px}
        .hero{padding:76px 0 70px;overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:62px;align-items:center}
        .hero-copy{position:relative;z-index:2}
        .hero h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:-.055em;margin:0 0 22px;font-weight:900}
        .hero h1 span{color:var(--primary)}
        .hero-lead{max-width:620px;color:var(--muted);font-size:18px;line-height:1.9;margin-bottom:28px}
        .actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:25px}
        .btn-main,.btn-ghost{
            min-height:50px;padding:11px 21px;border-radius:13px;font-weight:800;
            display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent
        }
        .btn-main{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(23,105,210,.22)}
        .btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
        .btn-main:active,.btn-ghost:active{transform:translateY(1px)}
        .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
        .btn-ghost:hover{border-color:#9fc0df;color:var(--primary);background:#f5faff}
        .hero-meta{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .hero-meta strong{display:block;color:var(--ink);font-size:20px;line-height:1.2}
        .hero-stage{position:relative;min-height:440px}
        .stage-card{
            position:absolute;inset:10px 0 10px 34px;background:#fff;border:1px solid var(--line);
            border-radius:32px;box-shadow:var(--shadow);transform:rotate(2.2deg);overflow:hidden
        }
        .stage-card:before{content:"";display:block;height:120px;background:linear-gradient(135deg,#dceeff,#b8d9f0 50%,#edf7fb)}
        .stage-inner{padding:24px}
        .stage-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
        .stage-title{font-weight:800;font-size:20px}
        .status{font-size:12px;color:var(--success);background:#e6f7f1;border-radius:99px;padding:5px 10px;font-weight:800}
        .preview-row{display:grid;grid-template-columns:1.2fr .8fr;gap:13px}
        .preview-panel{height:118px;border-radius:16px;background:var(--surface-soft);padding:16px}
        .preview-panel.large{background:#e5f1ff}
        .fake-line{height:9px;border-radius:8px;background:#b8cee2;margin:9px 0;width:70%}
        .fake-line.short{width:42%}
        .fake-line.blue{background:#78aee4;width:82%}
        .stage-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:18px}
        .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:99px;color:#3270a4;background:#eef7ff;border:1px solid #d8eaf9;font-size:12px;font-weight:700}
        .tag.warm{color:#aa6935;background:#fff4e8;border-color:#f8dfc2}
        .stage-note{
            position:absolute;left:0;bottom:2px;background:var(--ink);color:#fff;padding:18px 20px;
            border-radius:17px;box-shadow:var(--shadow-sm);max-width:235px;font-size:13px;line-height:1.6
        }
        .stage-note b{display:block;color:#b9dcff;margin-bottom:4px}
        .triple{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:16px}
        .benefit{padding:27px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}
        .benefit:first-child{background:#eaf4ff;border-color:#cfe4f9}
        .num{font-size:13px;color:var(--primary);font-weight:900;letter-spacing:.12em}
        .benefit h3{font-size:21px;margin:19px 0 8px}
        .benefit p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
        .scene{background:#eaf3f9}
        .scene-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center}
        .scene-copy p{color:var(--muted);font-size:16px}
        .step-list{margin-top:28px;display:grid;gap:15px}
        .step{display:flex;gap:14px;align-items:flex-start}
        .step-index{flex:none;width:32px;height:32px;border-radius:10px;background:#fff;color:var(--primary);display:grid;place-items:center;font-weight:900}
        .step b{display:block;font-size:15px}.step span{color:var(--muted);font-size:13px}
        .browser{
            background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px;box-shadow:var(--shadow)
        }
        .browser-bar{height:34px;background:#f2f7fb;border-radius:10px;display:flex;align-items:center;gap:6px;padding:0 12px;margin-bottom:14px}
        .dot{width:7px;height:7px;border-radius:50%;background:#b8cad8}
        .browser-address{height:9px;background:#d9e7f1;border-radius:5px;flex:1;margin-left:10px}
        .browser-body{display:grid;grid-template-columns:145px 1fr;gap:15px;min-height:245px}
        .side-filter{background:#f6faff;border-radius:14px;padding:15px}
        .side-filter strong{font-size:13px}.filter-line{height:28px;border-bottom:1px solid #e1ebf3;margin-top:8px;color:#7892a7;font-size:12px;padding-top:4px}
        .content-preview{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
        .content-tile{border:1px solid #e2edf4;border-radius:14px;padding:12px;background:#fff}
        .tile-cover{height:74px;border-radius:10px;background:linear-gradient(135deg,#dcecff,#eff7fa);margin-bottom:10px}
        .tile-cover.alt{background:linear-gradient(135deg,#fce8d8,#eff6fa)}
        .tile-title{height:10px;width:80%;border-radius:5px;background:#aac4da}.tile-sub{height:8px;width:53%;border-radius:5px;background:#d5e3ed;margin-top:8px}
        .entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .entry{padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px;min-height:145px;transition:.25s}
        .entry:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#a9c9e6}
        .entry-icon{color:var(--primary);font-size:25px;font-weight:900}.entry h3{font-size:17px;margin:14px 0 5px}.entry p{margin:0;color:var(--muted);font-size:13px}
        .updates-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
        .update-list,.recommend{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:10px 24px}
        .update-item{display:flex;align-items:center;gap:16px;padding:20px 0;border-bottom:1px solid #e7eff5}
        .update-item:last-child{border-bottom:0}.update-time{font-size:12px;color:var(--muted);min-width:78px}.update-item b{font-size:15px}.update-item span{display:block;color:var(--muted);font-size:13px}
        .recommend{padding:26px}.recommend h3{font-size:20px;margin:0 0 18px}.recommend-row{padding:15px 0;border-top:1px solid #e7eff5}.recommend-row b{display:block;font-size:14px}.recommend-row span{font-size:12px;color:var(--muted)}
        .trust{background:#fff}
        .trust-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:center}
        .quote{padding:30px;border:1px solid var(--line);border-radius:24px;background:#f8fbfe;position:relative}
        .quote:before{content:"“";position:absolute;right:24px;top:4px;color:#d5e7f7;font-size:72px;font-family:Georgia}
        .quote p{font-size:18px;line-height:1.8;margin:0 0 18px}.quote small{color:var(--muted)}
        .signal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.signal{padding:22px;border:1px solid var(--line);border-radius:16px}.signal strong{display:block;font-size:24px;color:var(--primary)}.signal span{color:var(--muted);font-size:13px}
        .faq-wrap{max-width:850px;margin:0 auto}.faq-item{border:1px solid var(--line);background:#fff;border-radius:15px;margin-bottom:12px;overflow:hidden}.faq-item button{width:100%;padding:20px 23px;text-align:left;border:0;background:#fff;color:var(--ink);font-weight:800;display:flex;justify-content:space-between;align-items:center}.faq-item button[aria-expanded=true]{color:var(--primary);background:#f7fbff}.faq-answer{padding:0 23px 20px;color:var(--muted);font-size:14px}
        .cta{padding:42px 0}.cta-box{background:var(--primary);color:#fff;border-radius:28px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px;box-shadow:0 18px 40px rgba(23,105,210,.22)}.cta-box h2{font-size:32px;margin:0 0 8px}.cta-box p{margin:0;color:#dbeaff}.cta-box .btn-main{background:#fff;color:var(--primary);box-shadow:none}.cta-box .btn-main:hover{background:#eaf4ff}
        .footer{border-top:1px solid var(--line);padding:52px 0 28px;background:#f8fbfd}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}.footer h3{font-size:15px;margin:0 0 15px}.footer p,.footer a{font-size:13px;color:var(--muted)}.footer a{display:block;margin:8px 0}.footer a:hover{color:var(--primary)}.footer-brand{font-size:18px;font-weight:900;color:var(--ink)!important}.footer-note{padding-top:28px;margin-top:25px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
        .fixed-bar{position:fixed;z-index:30;left:50%;bottom:20px;transform:translateX(-50%);width:min(650px,calc(100% - 40px));background:#fff;border:1px solid var(--line);box-shadow:0 15px 40px rgba(30,70,105,.18);border-radius:18px;padding:11px 13px;display:flex;align-items:center;gap:16px}.fixed-bar p{margin:0;font-size:13px;color:var(--muted);flex:1}.fixed-bar p strong{color:var(--ink);display:block}.fixed-bar .btn-main{min-height:42px;padding:8px 17px;font-size:13px}
        .search-panel{display:flex;gap:9px;max-width:600px;margin-top:10px}.search-panel input{height:48px;flex:1;border:1px solid var(--line);border-radius:13px;background:#fff;padding:0 16px;color:var(--ink)}.search-panel input:focus{border-color:#79aee1;box-shadow:0 0 0 4px rgba(23,105,210,.10);outline:0}.search-message{font-size:13px;color:var(--muted);margin-top:8px;min-height:20px}
        @media(max-width:1024px){.hero-grid{gap:35px}.entry-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:768px){:root{--section:72px}.container{width:min(var(--container),calc(100% - 28px))}.dock{padding-left:14px;border-radius:19px}.brand{font-size:13px}.brand-mark{width:32px;height:32px}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;padding:10px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{justify-content:flex-start}.nav-search{margin-left:auto}.menu-toggle{display:block}.hero{padding-top:55px}.hero-grid,.scene-grid,.trust-grid,.updates-grid{grid-template-columns:1fr}.hero-stage{min-height:380px}.stage-card{inset:5px 0 10px 18px}.stage-note{left:0}.cta-box{padding:32px 25px;display:block}.cta-box .btn-main{margin-top:22px}.fixed-bar{bottom:0;width:100%;border-radius:16px 16px 0 0;padding:10px 14px}.fixed-bar p{font-size:12px}.fixed-bar .btn-main{white-space:nowrap}}
        @media(max-width:520px){body{font-size:15px}.hero h1{font-size:39px}.hero-lead{font-size:16px}.hero-stage{min-height:310px}.stage-card{transform:none}.stage-card:before{height:75px}.stage-inner{padding:17px}.preview-panel{height:85px;padding:10px}.browser-body{grid-template-columns:95px 1fr;min-height:210px}.content-preview{gap:7px}.entry-grid,.signal-grid,.footer-grid{grid-template-columns:1fr}.triple{grid-template-columns:1fr}.benefit{padding:22px}.search-panel{display:block}.search-panel .btn-main{width:100%;margin-top:9px}.update-item{display:block}.update-time{display:block;margin-bottom:5px}.cta-box h2{font-size:27px}}

/* roulang page: category2 */
:root{
 --bg:#f4f8fc;--surface:#fff;--surface-soft:#edf5fb;--ink:#18324b;--muted:#6b8093;
 --line:#dbe7f0;--primary:#1769d2;--primary-dark:#0f4fa5;--secondary:#39a6b8;
 --accent:#ef9b56;--success:#2b9c83;--radius-lg:28px;--radius-md:18px;--radius-sm:12px;
 --shadow:0 18px 50px rgba(38,79,116,.10);--shadow-sm:0 8px 24px rgba(38,79,116,.08);
 --container:1180px;--section:82px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;padding-bottom:108px}
a{color:inherit;text-decoration:none;transition:.25s ease}
a:hover{color:var(--primary)}
img,svg{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:auto}
.dock-wrap{padding:22px 0 0;position:relative;z-index:10}
.dock{min-height:72px;padding:12px 16px 12px 20px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:15px;line-height:1.25}
.brand-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;color:#fff;background:var(--primary);font-size:17px;font-weight:900;box-shadow:0 7px 16px rgba(23,105,210,.24)}
.nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-links a,.nav-search{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:12px;color:var(--muted);font-size:14px;font-weight:700}
.nav-links a:hover,.nav-links a.active{color:var(--primary);background:#eaf3ff}
.nav-search{border:1px solid var(--line);background:#f8fbfe;color:var(--ink);gap:7px}
.nav-search:hover{border-color:#a9c7e6;color:var(--primary)}
.menu-toggle{display:none;border:0;background:#edf5fb;color:var(--primary);border-radius:11px;width:42px;height:42px}
.page-hero{padding:72px 0 58px;background:linear-gradient(120deg,#f4f8fc 20%,#eaf5ff 100%);border-bottom:1px solid #e1edf5}
.breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
.breadcrumbs a{color:var(--primary)}
.hero-layout{display:grid;grid-template-columns:1fr 390px;gap:64px;align-items:end}
.eyebrow{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.13em;margin-bottom:14px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(36px,5vw,62px);line-height:1.16;letter-spacing:-.05em;font-weight:900;margin-bottom:20px}
.hero-copy{max-width:700px}
.hero-copy p{font-size:18px;color:var(--muted);line-height:1.9;margin-bottom:28px}
.btn-main,.btn-ghost{min-height:50px;padding:11px 21px;border-radius:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent}
.btn-main{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(23,105,210,.22)}
.btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#9fc0df;color:var(--primary);background:#f5faff}
.btn-main:focus,.btn-ghost:focus,.nav-links a:focus,.nav-search:focus,.menu-toggle:focus,input:focus{outline:3px solid rgba(23,105,210,.22);outline-offset:2px}
.hero-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:24px}
.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.panel-top strong{font-size:18px}
.status{color:var(--success);font-size:12px;font-weight:800}
.search-box{display:flex;gap:8px;background:#f6faff;border:1px solid var(--line);padding:7px;border-radius:14px}
.search-box input{min-width:0;flex:1;border:0;background:transparent;padding:7px 9px;color:var(--ink)}
.search-box button{border:0;background:var(--primary);color:#fff;border-radius:10px;padding:8px 13px;font-weight:700}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.tag,.label{display:inline-flex;align-items:center;padding:5px 10px;border-radius:99px;color:#3270a4;background:#eef7ff;border:1px solid #d8eaf9;font-size:12px;font-weight:700}
.tag.warm{color:#aa6935;background:#fff4e8;border-color:#f8dfc2}
.section{padding:var(--section) 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(28px,4vw,42px);line-height:1.22;letter-spacing:-.035em;font-weight:850;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:17px;margin-bottom:0}
.filter-strip{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);padding:14px;border-radius:16px;box-shadow:var(--shadow-sm);margin-bottom:28px}
.filter-strip span{font-size:13px;color:var(--muted);font-weight:700;margin-right:4px}
.filter-strip a{padding:7px 12px;border-radius:10px;color:var(--muted);font-size:13px;font-weight:700}
.filter-strip a:hover,.filter-strip a.selected{color:var(--primary);background:#eaf3ff}
.feature-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}
.feature-card,.info-card,.faq-list,.cta-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}
.feature-card{min-height:310px;padding:30px;position:relative;overflow:hidden;background:linear-gradient(135deg,#fff 48%,#edf7ff)}
.feature-card:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:#dceeff;right:-54px;bottom:-78px}
.feature-card h3{font-size:28px;max-width:450px;margin:12px 0 12px;position:relative;z-index:1}
.feature-card p{max-width:520px;color:var(--muted);position:relative;z-index:1}
.feature-card .btn-main{position:relative;z-index:1}
.info-stack{display:grid;gap:20px}
.info-card{padding:24px}
.info-card h3{font-size:19px;margin:7px 0}
.info-card p{font-size:14px;color:var(--muted);margin-bottom:0}
.number{color:var(--primary);font-weight:900;font-size:13px;letter-spacing:.1em}
.content-band{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.content-item{padding:20px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.25s}
.content-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#b6d2eb}
.content-item h3{font-size:16px;margin:12px 0 5px}
.content-item p{font-size:13px;color:var(--muted);margin:0}
.meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}
.index-area{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
.index-note{padding:28px;background:var(--ink);border-radius:var(--radius-md);color:#fff;box-shadow:var(--shadow)}
.index-note h2{font-size:30px;line-height:1.3;margin-bottom:14px}
.index-note p{color:#bdd0df;margin-bottom:22px}
.index-note .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.16);color:#d8edff}
.index-list{display:grid;gap:12px}
.index-row{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px 19px}
.index-row:hover{border-color:#9fc3e3;transform:translateX(3px)}
.index-row .count{color:var(--primary);font-weight:900;font-size:14px}
.index-row strong{font-size:15px;flex:1}
.index-row small{color:var(--muted)}
.faq-list{overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"＋";color:var(--primary);font-size:20px;line-height:1}
.faq-item[open] summary{color:var(--primary);background:#f7fbff}
.faq-item[open] summary:after{content:"－"}
.faq-answer{padding:0 24px 21px;color:var(--muted);font-size:14px}
.cta-box{padding:34px 38px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:#eaf5ff}
.cta-box h2{font-size:30px;margin-bottom:8px}
.cta-box p{color:var(--muted);margin:0}
.footer{background:#fff;border-top:1px solid var(--line);padding:52px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand{font-size:18px;font-weight:900;color:var(--ink)}
.footer-grid p{color:var(--muted);font-size:14px;max-width:280px;margin-top:13px}
.footer h3{font-size:14px;margin:0 0 13px}
.footer-grid>div>a:not(.footer-brand){display:block;color:var(--muted);font-size:14px;margin:6px 0}
.footer-grid>div>a:hover{color:var(--primary)}
.footer-note{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;color:var(--muted);font-size:12px}
.fixed-cta{position:fixed;z-index:20;left:50%;bottom:22px;transform:translateX(-50%);display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px 12px 10px 20px;box-shadow:0 15px 35px rgba(38,79,116,.18);font-size:14px}
.fixed-cta strong{font-size:14px}
.fixed-cta .btn-main{min-height:42px;padding:8px 16px}
@media(max-width:900px){.hero-layout,.feature-layout,.index-area{grid-template-columns:1fr}.hero-panel{max-width:520px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){
 body{padding-bottom:78px}.container{width:min(var(--container),calc(100% - 28px))}
 .dock{padding:11px 12px}.brand{font-size:13px}.brand-mark{width:34px;height:34px}
 .nav-links{display:none;position:absolute;left:14px;right:14px;top:82px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}.nav-links a{justify-content:flex-start}.nav-search span{display:none}.nav-search{padding:8px 12px}.menu-toggle{display:block}
 .page-hero{padding:48px 0 38px}.hero-layout{gap:28px}h1{font-size:38px}.hero-copy p{font-size:16px}
 .section{padding:58px 0}.content-band{grid-template-columns:1fr}.cta-box{display:block;padding:28px 24px}.cta-box .btn-main{margin-top:20px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.fixed-cta{left:0;right:0;bottom:0;transform:none;border-radius:0;padding:10px 14px;justify-content:space-between}
}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}.hero-panel{padding:18px}.filter-strip{align-items:flex-start}.filter-strip span{width:100%}.index-row small{display:none}}

/* roulang page: category1 */
:root{
 --bg:#f4f8fc;--surface:#fff;--surface-soft:#edf5fb;--ink:#18324b;--muted:#6b8093;
 --line:#dbe7f0;--primary:#1769d2;--primary-dark:#0f4fa5;--secondary:#39a6b8;
 --accent:#ef9b56;--success:#2b9c83;--radius-lg:28px;--radius-md:18px;--radius-sm:12px;
 --shadow:0 18px 50px rgba(38,79,116,.10);--shadow-sm:0 8px 24px rgba(38,79,116,.08);
 --container:1180px;--section:82px;--nav-height:72px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;padding-bottom:110px}
a{color:inherit;text-decoration:none;transition:.25s ease}
a:hover{color:var(--primary)}
img,svg{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
.section{padding:var(--section) 0}
.eyebrow{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.15em;margin-bottom:12px}
.section-head{max-width:720px;margin-bottom:35px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:0 0 14px;font-weight:800;letter-spacing:-.03em}
.section-head p{color:var(--muted);margin:0;font-size:17px}
.dock-wrap{padding:22px 0 0;position:relative;z-index:20}
.dock{min-height:var(--nav-height);display:flex;align-items:center;gap:22px;padding:10px 14px 10px 20px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-sm);backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:15px;line-height:1.25}
.brand-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;color:#fff;background:var(--primary);font-size:17px;font-weight:900;box-shadow:0 7px 16px rgba(23,105,210,.24)}
.nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-links a,.nav-search{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:12px;color:var(--muted);font-size:14px;font-weight:700}
.nav-links a:hover,.nav-links a.active{color:var(--primary);background:#eaf3ff}
.nav-search{border:1px solid var(--line);background:#f8fbfe;color:var(--ink);gap:7px}
.nav-search:hover{border-color:#a9c7e6;color:var(--primary)}
.menu-toggle{display:none;border:0;background:#edf5fb;color:var(--primary);border-radius:11px;width:42px;height:42px}
.page-hero{padding:70px 0 48px}
.breadcrumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:23px}
.breadcrumbs a{color:var(--primary)}
.page-hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:end}
.page-hero h1{font-size:clamp(36px,5vw,62px);line-height:1.14;letter-spacing:-.05em;margin:0 0 20px;font-weight:900}
.page-hero h1 span{color:var(--primary)}
.hero-lead{max-width:700px;color:var(--muted);font-size:18px;line-height:1.9;margin:0}
.index-panel{background:var(--ink);color:#fff;border-radius:24px;padding:25px;box-shadow:var(--shadow)}
.index-panel small{color:#afd3f4;display:block;margin-bottom:8px}
.index-panel strong{display:block;font-size:28px;line-height:1.25;margin-bottom:16px}
.index-lines{display:grid;gap:10px}
.index-lines div{display:flex;justify-content:space-between;gap:15px;padding-top:10px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:#d6e6f3}
.index-lines b{color:#fff}
.filter-section{padding:25px 0 35px}
.filter-bar{display:flex;align-items:center;gap:13px;flex-wrap:wrap;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}
.filter-label{font-size:13px;font-weight:800;color:var(--ink);padding:0 7px}
.filter-btn{border:1px solid var(--line);background:#f8fbfe;color:var(--muted);padding:9px 15px;border-radius:11px;font-size:13px;font-weight:700;transition:.25s}
.filter-btn:hover,.filter-btn.active{background:#eaf3ff;color:var(--primary);border-color:#b6d2ee}
.filter-btn:focus,.btn-main:focus,.btn-ghost:focus,.nav-search:focus,.nav-links a:focus,input:focus{outline:3px solid rgba(23,105,210,.22);outline-offset:2px}
.filter-sort{margin-left:auto;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.filter-sort select{border:1px solid var(--line);border-radius:10px;padding:8px 28px 8px 10px;color:var(--ink);background:#fff}
.content-layout{display:grid;grid-template-columns:235px 1fr;gap:30px;align-items:start}
.filter-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-sm);position:sticky;top:22px}
.filter-side h3{font-size:17px;margin:0 0 17px}
.side-group{padding:17px 0;border-top:1px solid var(--line)}
.side-group:first-of-type{border-top:0;padding-top:0}
.side-group h4{font-size:13px;margin:0 0 10px;color:var(--muted)}
.check-row{display:flex;align-items:center;gap:9px;font-size:14px;padding:5px 0;color:var(--ink)}
.check-row input{accent-color:var(--primary);width:16px;height:16px}
.side-reset{width:100%;border:1px solid var(--line);background:#f8fbfe;color:var(--primary);border-radius:10px;padding:9px;font-size:13px;font-weight:700}
.side-reset:hover{background:#eaf3ff}
.result-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:18px}
.result-head h2{font-size:25px;margin:0;line-height:1.3}
.result-head p{color:var(--muted);font-size:13px;margin:5px 0 0}
.result-note{color:var(--muted);font-size:13px}
.featured{display:grid;grid-template-columns:1.15fr .85fr;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:20px}
.featured-visual{min-height:250px;position:relative;background:linear-gradient(135deg,#c9e5fb,#edf7fb 52%,#b9d9e8)}
.featured-visual:after{content:"";position:absolute;inset:35px 38px;background:linear-gradient(145deg,rgba(23,105,210,.12),rgba(255,255,255,.65));border:1px solid rgba(255,255,255,.75);border-radius:20px;transform:rotate(-4deg)}
.visual-label{position:absolute;z-index:2;left:24px;top:22px;background:#fff;color:var(--primary);padding:5px 10px;border-radius:8px;font-size:12px;font-weight:800}
.featured-copy{padding:28px}
.tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:99px;color:#3270a4;background:#eef7ff;border:1px solid #d8eaf9;font-size:12px;font-weight:700}
.tag.warm{color:#aa6935;background:#fff4e8;border-color:#f8dfc2}
.featured-copy h3{font-size:24px;line-height:1.35;margin:15px 0 10px}
.featured-copy p{color:var(--muted);font-size:14px;margin:0 0 18px}
.btn-main,.btn-ghost{min-height:48px;padding:10px 19px;border-radius:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent}
.btn-main{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(23,105,210,.22)}
.btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
.btn-main:active,.btn-ghost:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#9fc0df;color:var(--primary);background:#f5faff}
.content-list{display:grid;gap:14px}
.content-card{display:grid;grid-template-columns:150px 1fr auto;gap:20px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:13px;box-shadow:var(--shadow-sm);transition:.25s}
.content-card:hover{transform:translateY(-3px);border-color:#b7d2ed;box-shadow:var(--shadow)}
.card-visual{height:108px;border-radius:13px;background:linear-gradient(135deg,#d8edf9,#a9cee6);position:relative;overflow:hidden}
.card-visual:before{content:"";position:absolute;width:70%;height:70%;right:-8%;bottom:-22%;border-radius:50%;background:rgba(255,255,255,.45)}
.card-visual i{position:absolute;left:12px;top:12px;font-style:normal;color:#fff;background:rgba(24,50,75,.72);padding:3px 7px;border-radius:7px;font-size:11px}
.card-copy h3{font-size:18px;margin:8px 0 5px;line-height:1.35}
.card-copy p{color:var(--muted);font-size:13px;margin:0}
.card-meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px}
.card-action{color:var(--primary);font-weight:800;font-size:13px;white-space:nowrap;padding:10px}
.card-action:hover{color:var(--primary-dark)}
.pagination-wrap{display:flex;justify-content:space-between;align-items:center;margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}
.page-info{color:var(--muted);font-size:13px}
.page-buttons{display:flex;gap:7px}
.page-buttons button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:9px;padding:7px 12px}
.page-buttons button.active,.page-buttons button:hover{background:#eaf3ff;color:var(--primary);border-color:#b6d2ee}
.empty-note{display:none;background:#fff;border:1px dashed #b9cddd;border-radius:17px;padding:25px;text-align:center;color:var(--muted)}
.search-section{padding:65px 0;background:var(--surface-soft)}
.search-box{display:flex;max-width:760px;padding:7px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm)}
.search-box input{flex:1;border:0;min-width:0;padding:11px 14px;color:var(--ink);background:transparent}
.search-box input:focus{outline:0}
.search-box button{border:0;border-radius:11px;padding:10px 21px;background:var(--primary);color:#fff;font-weight:800}
.search-box button:hover{background:var(--primary-dark)}
.quick-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:15px;color:var(--muted);font-size:13px}
.quick-tags a{padding:5px 10px;border-radius:99px;background:#fff;border:1px solid var(--line)}
.quick-tags a:hover{color:var(--primary);border-color:#a9c7e6}
.faq-section{padding:75px 0}
.faq-list{max-width:850px;display:grid;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:#fff;color:var(--ink);padding:18px 21px;font-weight:800}
.faq-question span:last-child{color:var(--primary);font-size:22px;line-height:1}
.faq-answer{display:none;color:var(--muted);padding:0 21px 19px;font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question{color:var(--primary)}
.cta{padding:22px 0 88px}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:25px;background:#e8f3ff;border:1px solid #c9e0f4;border-radius:25px;padding:31px 36px}
.cta-box h2{font-size:27px;margin:0 0 7px}
.cta-box p{margin:0;color:var(--muted);font-size:14px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.footer{background:#edf4f9;border-top:1px solid var(--line);padding:55px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand{font-size:18px;font-weight:900;color:var(--ink)}
.footer-grid p{color:var(--muted);font-size:13px;max-width:260px;margin:13px 0 0}
.footer-grid h3{font-size:14px;margin:0 0 13px}
.footer-grid>div:not(:first-child) a{display:block;color:var(--muted);font-size:13px;margin:7px 0}
.footer-grid>div:not(:first-child) a:hover{color:var(--primary)}
.footer-note{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;color:var(--muted);font-size:12px}
.bottom-cta{position:fixed;z-index:30;left:50%;bottom:19px;transform:translateX(-50%);width:min(620px,calc(100% - 40px));display:flex;align-items:center;justify-content:space-between;gap:18px;padding:10px 11px 10px 20px;background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:0 14px 40px rgba(25,60,91,.18)}
.bottom-cta p{margin:0;font-size:13px;font-weight:700}
.bottom-cta p span{display:block;color:var(--muted);font-size:11px;font-weight:400}
.bottom-cta a{white-space:nowrap}
@media(max-width:1024px){
 .page-hero-grid{gap:28px}.content-layout{grid-template-columns:205px 1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
}
@media(max-width:768px){
 :root{--section:62px}
 .container{width:min(var(--container),calc(100% - 28px))}
 .dock-wrap{padding-top:12px}.dock{padding:9px 11px 9px 14px;border-radius:17px;gap:10px}
 .brand{font-size:13px}.brand-mark{width:32px;height:32px;font-size:15px}
 .nav-links{display:none;position:absolute;left:14px;right:14px;top:70px;padding:9px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.show{display:flex}.nav-links a{justify-content:flex-start}.nav-search span{display:none}.nav-search{padding:8px 12px}.menu-toggle{display:block}
 .page-hero{padding:48px 0 35px}.page-hero-grid{grid-template-columns:1fr}.index-panel{max-width:480px}
 .filter-sort{margin-left:0}.content-layout{grid-template-columns:1fr}.filter-side{position:static}
 .featured{grid-template-columns:1fr}.featured-visual{min-height:190px}
 .content-card{grid-template-columns:105px 1fr;gap:13px}.card-visual{height:88px}.card-action{grid-column:2;padding:0;text-align:left}
 .pagination-wrap{align-items:flex-start;gap:12px;flex-direction:column}
 .cta-box{align-items:flex-start;flex-direction:column;padding:27px 23px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:520px){
 body{font-size:15px;padding-bottom:90px}.page-hero h1{font-size:37px}.hero-lead{font-size:16px}
 .filter-bar{align-items:stretch}.filter-label{width:100%}.filter-sort{width:100%}.filter-sort select{flex:1}
 .content-card{grid-template-columns:1fr}.card-visual{height:135px}.card-action{grid-column:auto}
 .footer-grid{grid-template-columns:1fr}.footer{padding-top:42px}
 .bottom-cta{bottom:0;width:100%;border-radius:0;padding:10px 14px calc(10px + env(safe-area-inset-bottom));border-left:0;border-right:0}
 .bottom-cta p{font-size:12px}.bottom-cta p span{display:none}.bottom-cta a{min-height:43px;padding:8px 13px}
}