/* roulang page: index */
:root{
            --blue:#2563eb;
            --blue-dark:#1746a2;
            --blue-soft:#eaf2ff;
            --cyan:#0f9f9a;
            --ink:#102a43;
            --text:#243b53;
            --muted:#66788a;
            --bg:#f6f9fd;
            --line:#dce7f3;
            --white:#fff;
            --radius:18px;
            --shadow:0 12px 32px rgba(30,64,175,.09);
            --shadow-hover:0 18px 38px rgba(30,64,175,.15);
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;color:var(--text);background:var(--bg);
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            line-height:1.75;font-size:16px
        }
        a{color:inherit;text-decoration:none;transition:.2s ease}
        button,input,select,textarea{font:inherit}
        img{max-width:100%;display:block}
        :focus-visible{outline:3px solid rgba(37,99,235,.3);outline-offset:3px}
        .site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .brand-row{min-height:74px;display:flex;align-items:center;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-size:21px;font-weight:800;white-space:nowrap}
        .brand-mark{width:28px;height:28px;border:7px solid var(--blue);border-radius:9px 9px 9px 3px;position:relative}
        .brand-mark:after{content:"";position:absolute;width:10px;height:4px;background:var(--cyan);right:-10px;bottom:-5px;border-radius:3px}
        .search-box{max-width:350px;flex:1;margin-left:auto;position:relative}
        .search-box input{height:42px;border:1px solid var(--line);border-radius:10px;padding:0 16px;background:#fbfdff;width:100%;color:var(--ink)}
        .search-box input::placeholder{color:#8a9aad}
        .nav-action,.primary-btn,.outline-btn{
            min-height:44px;border-radius:10px;padding:10px 18px;font-weight:700;
            display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent
        }
        .primary-btn,.nav-action{background:var(--blue);color:#fff}
        .primary-btn:hover,.nav-action:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px)}
        .outline-btn{border-color:#a9c4ec;background:#fff;color:var(--blue)}
        .outline-btn:hover{background:var(--blue-soft);color:var(--blue-dark)}
        .channel-row{border-top:1px solid #f0f4f9}
        .channel-nav{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none}
        .channel-nav::-webkit-scrollbar{display:none}
        .channel-nav a{min-height:48px;padding:11px 17px;display:flex;align-items:center;white-space:nowrap;color:var(--muted);font-weight:650;border-bottom:2px solid transparent}
        .channel-nav a:hover,.channel-nav a.active{color:var(--blue);background:var(--blue-soft);border-bottom-color:var(--blue)}
        .hero{position:relative;overflow:hidden;background:#edf5ff;padding:78px 0 82px;border-bottom:1px solid #d9e8fb}
        .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .hero:before{width:430px;height:430px;background:rgba(37,99,235,.08);right:-120px;top:-180px}
        .hero:after{width:230px;height:230px;background:rgba(15,159,154,.08);left:8%;bottom:-160px}
        .eyebrow,.section-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
        .hero h1{font-size:clamp(34px,5vw,62px);line-height:1.18;color:var(--ink);font-weight:850;letter-spacing:-.04em;margin:14px 0 22px;max-width:720px}
        .hero-copy{font-size:18px;color:#4d647b;max-width:680px;margin-bottom:28px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-panel{background:#fff;border:1px solid #d6e5f7;border-radius:22px;box-shadow:var(--shadow);padding:25px;position:relative;z-index:1}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:18px}
        .panel-title{font-weight:800;color:var(--ink)}
        .status{font-size:12px;background:#e7f8f4;color:#087b72;padding:5px 9px;border-radius:7px;font-weight:700}
        .index-line{display:flex;align-items:center;gap:13px;padding:13px 0;border-bottom:1px solid #edf2f7}
        .index-line:last-child{border-bottom:0}
        .index-no{width:30px;height:30px;background:var(--blue-soft);color:var(--blue);border-radius:8px;display:grid;place-items:center;font-weight:800;font-size:13px}
        .index-line strong{display:block;color:var(--ink);font-size:15px}
        .index-line small{color:var(--muted)}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
        .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--ink);font-weight:820;margin:8px 0 10px}
        .section-intro{color:var(--muted);max-width:670px;margin:0}
        .metrics{background:#fff;border-bottom:1px solid #e7eef7;padding:30px 0}
        .metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
        .metric{padding:12px 28px;border-right:1px solid var(--line)}
        .metric:first-child{padding-left:0}.metric:last-child{border:0}
        .metric-value{font-size:34px;font-weight:850;color:var(--blue);line-height:1.2}
        .metric-label{font-weight:800;color:var(--ink);margin-top:5px}
        .metric small{color:var(--muted)}
        .matrix-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:22px}
        .main-card,.small-card,.compare-card,.quote-card,.info-list,.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
        .main-card{padding:34px;min-height:330px;border-left:5px solid var(--blue);background:linear-gradient(105deg,#fafdff,#edf5ff)}
        .small-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
        .small-card{padding:25px;min-height:154px}
        .small-card:hover,.main-card:hover,.quote-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
        .card-index{color:var(--blue);font-size:13px;font-weight:800}
        .card-title{color:var(--ink);font-weight:800;font-size:20px;margin:9px 0 7px}
        .card-text{color:var(--muted);font-size:14px;margin:0}
        .text-link{color:var(--blue);font-weight:750;display:inline-flex;margin-top:18px;align-items:center;gap:5px}
        .text-link:hover{color:var(--blue-dark);gap:9px}
        .tag{display:inline-block;background:#f0f6ff;color:var(--blue);border:1px solid #d9e8ff;border-radius:7px;padding:4px 9px;font-size:12px;font-weight:750}
        .mini-section{margin-top:35px}
        .mini-title{font-size:19px;color:var(--ink);font-weight:800;margin-bottom:15px}
        .list-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
        .list-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:17px}
        .list-item strong{display:block;color:var(--ink);font-size:15px;margin:8px 0 5px}
        .list-item span{font-size:13px;color:var(--muted)}
        .comparison{background:#f0f6ff}
        .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .compare-card{padding:28px}
        .compare-card.result{border:2px solid #9fc3ff}
        .compare-title{display:flex;justify-content:space-between;align-items:center;color:var(--ink);font-size:19px;font-weight:800;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:15px}
        .compare-card ul{list-style:none;padding:0;margin:0}
        .compare-card li{padding:9px 0;color:var(--muted);border-bottom:1px dashed #e0e8f1}
        .compare-card li:last-child{border-bottom:0}
        .compare-card li:before{content:"";display:inline-block;width:7px;height:7px;background:#b8c5d4;border-radius:50%;margin:0 11px 2px 0}
        .result li:before{background:var(--cyan)}
        .extra-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:28px}
        .quote-card,.info-list{padding:24px}
        .quote-card p{margin:12px 0;color:var(--text)}
        .quote-name{font-size:13px;color:var(--muted);font-weight:700}
        .info-row{display:flex;gap:17px;padding:14px 0;border-bottom:1px solid var(--line)}
        .info-row:last-child{border:0}.info-date{color:var(--blue);font-size:13px;font-weight:800;min-width:76px}
        .info-row a{font-weight:700;color:var(--ink)}.info-row a:hover{color:var(--blue)}
        .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px}
        .faq-index{padding-top:10px;color:var(--muted)}
        .faq-index strong{display:block;color:var(--ink);font-size:18px;margin-bottom:10px}
        .accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:0 5px 16px rgba(30,64,175,.04)}
        .accordion-button{font-weight:750;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none!important}
        .accordion-button:not(.collapsed){color:var(--blue);background:var(--blue-soft)}
        .accordion-button:after{background-size:14px}
        .accordion-body{color:var(--muted);padding:0 20px 20px;font-size:15px}
        .form-section{background:#eaf3ff;padding:80px 0}
        .form-card{padding:38px}
        .form-title{color:var(--ink);font-size:28px;font-weight:820;margin-bottom:10px}
        .form-note{color:var(--muted)}
        .form-label{font-weight:750;color:var(--ink);font-size:14px;margin-bottom:7px}
        .form-control,.form-select{border:1px solid #cbdbea;min-height:46px;border-radius:9px;padding:10px 13px}
        .form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(37,99,235,.11)}
        textarea.form-control{min-height:112px}
        .required{color:#d04b4b}.privacy{font-size:13px;color:var(--muted)}
        .form-message{display:none;margin-top:15px;padding:11px 14px;border-radius:9px;font-size:14px}
        .form-message.success{display:block;color:#087b72;background:#e6f7f3}.form-message.error{display:block;color:#a23c45;background:#fff0f1}
        .floating-cta{position:fixed;right:22px;bottom:20px;z-index:15;background:var(--ink);color:#fff;border-radius:12px;padding:12px 17px;box-shadow:0 10px 26px rgba(16,42,67,.2);font-size:14px;font-weight:750}
        .floating-cta:hover{background:var(--blue);color:#fff;transform:translateY(-2px)}
        footer{background:#fff;border-top:1px solid var(--line);padding:45px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:35px}
        footer .brand{margin-bottom:12px}.footer-copy{color:var(--muted);font-size:14px;max-width:350px}
        .footer-title{color:var(--ink);font-weight:800;margin-bottom:13px}
        .footer-links{display:flex;flex-direction:column;gap:9px;color:var(--muted);font-size:14px}
        .footer-links a:hover{color:var(--blue)}
        .copyright{border-top:1px solid var(--line);margin-top:32px;padding-top:18px;color:#8091a5;font-size:13px;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:991px){
            .search-box{display:none}.hero{padding:62px 0}.matrix-grid,.faq-layout{grid-template-columns:1fr}.metric-row{grid-template-columns:repeat(2,1fr);gap:20px}.metric{border:0;padding:10px 0}.list-panel{grid-template-columns:1fr 1fr}
        }
        @media(max-width:767px){
            .brand-row{min-height:66px}.brand{font-size:18px}.nav-action{padding:9px 12px;font-size:14px}.hero h1{font-size:37px}.hero-copy{font-size:16px}.section{padding:60px 0}.section-head{display:block}.section-head .outline-btn{margin-top:18px}.small-grid,.compare-grid,.extra-grid,.footer-grid{grid-template-columns:1fr}.main-card{padding:25px}.list-panel{grid-template-columns:1fr}.form-card{padding:25px}.floating-cta{right:14px;bottom:14px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            .brand-mark{width:24px;height:24px;border-width:6px}.brand-row{gap:10px}.channel-nav a{padding-left:13px;padding-right:13px}.hero{padding:48px 0 55px}.hero-actions a{width:100%}.metric-value{font-size:28px}.metric{padding-right:8px}.metric small{font-size:12px}.section h2{font-size:29px}
        }

/* roulang page: category1 */
:root{
 --blue:#2563eb;
 --blue-dark:#1746a2;
 --blue-soft:#eaf2ff;
 --cyan:#0f9f9a;
 --ink:#102a43;
 --text:#243b53;
 --muted:#66788a;
 --bg:#f6f9fd;
 --line:#dce7f3;
 --white:#fff;
 --radius:18px;
 --shadow:0 12px 32px rgba(30,64,175,.09);
 --shadow-hover:0 18px 38px rgba(30,64,175,.15);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;color:var(--text);background:var(--bg);
 font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
 line-height:1.75;font-size:16px
}
a{color:inherit;text-decoration:none;transition:.2s ease}
button,input,select,textarea{font:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand-row{min-height:74px;display:flex;align-items:center;gap:28px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-size:21px;font-weight:800;white-space:nowrap}
.brand-mark{width:28px;height:28px;border:7px solid var(--blue);border-radius:9px 9px 9px 3px;position:relative;display:inline-block}
.brand-mark:after{content:"";position:absolute;width:10px;height:4px;background:var(--cyan);right:-10px;bottom:-5px;border-radius:3px}
.search-box{max-width:350px;flex:1;margin-left:auto;position:relative}
.search-box input{height:42px;border:1px solid var(--line);border-radius:10px;padding:0 16px;background:#fbfdff;width:100%;color:var(--ink);outline:0}
.search-box input:focus{border-color:#7da9ef;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.search-box input::placeholder{color:#8a9aad}
.nav-action,.primary-btn,.outline-btn{
 min-height:44px;border-radius:10px;padding:10px 18px;font-weight:700;
 display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent
}
.nav-action,.primary-btn{background:var(--blue);color:#fff}
.primary-btn:hover,.nav-action:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px)}
.outline-btn{border-color:#a9c4ec;background:#fff;color:var(--blue)}
.outline-btn:hover{background:var(--blue-soft);color:var(--blue-dark)}
.nav-action:focus,.primary-btn:focus,.outline-btn:focus,.channel-nav a:focus,.text-link:focus{outline:3px solid rgba(37,99,235,.28);outline-offset:3px}
.channel-row{border-top:1px solid #f0f4f9}
.channel-nav{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{min-height:48px;padding:11px 17px;display:flex;align-items:center;white-space:nowrap;color:var(--muted);font-weight:650;border-bottom:2px solid transparent}
.channel-nav a:hover,.channel-nav a.active{color:var(--blue);background:var(--blue-soft);border-bottom-color:var(--blue)}
.breadcrumb-wrap{padding:25px 0 0}
.breadcrumb{margin:0;font-size:14px;color:var(--muted)}
.breadcrumb a{color:var(--blue)}
.page-hero{padding:48px 0 58px;background:#edf5ff;border-bottom:1px solid #d9e8fb}
.page-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}
.eyebrow,.section-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em}
.page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.2;color:var(--ink);font-weight:850;letter-spacing:-.035em;margin:13px 0 18px}
.hero-copy{font-size:18px;color:#4d647b;max-width:680px;margin:0 0 24px}
.hero-panel{background:#fff;border:1px solid #d6e5f7;border-radius:22px;box-shadow:var(--shadow);padding:27px}
.panel-title{font-weight:800;color:var(--ink);font-size:19px;margin-bottom:17px}
.panel-line{display:flex;justify-content:space-between;gap:18px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.panel-line:last-child{border-bottom:0}
.panel-line span{color:var(--muted)}
.panel-line strong{color:var(--ink);text-align:right}
.section{padding:78px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
.section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--ink);font-weight:820;margin:7px 0 10px}
.section-intro{color:var(--muted);max-width:680px;margin:0}
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px;box-shadow:0 7px 20px rgba(30,64,175,.05);margin-bottom:25px}
.filter-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr auto;gap:12px;align-items:end}
.field-label{display:block;font-size:13px;font-weight:750;color:var(--ink);margin-bottom:6px}
.form-control,.form-select{border:1px solid var(--line);border-radius:9px;min-height:44px;color:var(--text);background:#fbfdff}
.form-control:focus,.form-select:focus{border-color:#7da9ef;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.index-layout{display:grid;grid-template-columns:250px 1fr;gap:26px;align-items:start}
.side-index,.list-panel,.notice-card,.faq-card,.cta-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.side-index{padding:22px;position:sticky;top:145px}
.side-index h3{color:var(--ink);font-size:17px;margin:0 0 14px}
.side-index a{display:flex;justify-content:space-between;align-items:center;padding:11px 12px;border-radius:9px;color:var(--muted);font-size:14px}
.side-index a:hover,.side-index a.active{background:var(--blue-soft);color:var(--blue);font-weight:700}
.side-index em{font-style:normal;font-size:12px;color:#91a3b8}
.list-panel{padding:9px 26px}
.index-item{display:grid;grid-template-columns:48px 1fr auto;gap:17px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
.index-item:last-child{border-bottom:0}
.item-number{width:34px;height:34px;border-radius:9px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px}
.item-title{color:var(--ink);font-size:18px;font-weight:800;margin:7px 0 3px}
.item-desc{color:var(--muted);font-size:14px;margin:0;max-width:650px}
.item-meta{color:#8495a8;font-size:13px;white-space:nowrap;text-align:right}
.tag{display:inline-block;background:#f0f6ff;color:var(--blue);border:1px solid #d9e8ff;border-radius:7px;padding:4px 9px;font-size:12px;font-weight:750}
.text-link{color:var(--blue);font-weight:750;display:inline-flex;margin-top:14px;align-items:center;gap:5px}
.text-link:hover{color:var(--blue-dark);gap:9px}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.notice-card{padding:28px;border-left:5px solid var(--cyan)}
.notice-card h3,.faq-card h3{font-size:20px;color:var(--ink);margin:0 0 10px;font-weight:800}
.notice-card p{color:var(--muted);margin:0}
.notice-list{list-style:none;margin:15px 0 0;padding:0}
.notice-list li{padding:9px 0;border-bottom:1px dashed #dce7f3;color:var(--text);font-size:14px}
.notice-list li:last-child{border-bottom:0}
.notice-list li:before{content:"";display:inline-block;width:7px;height:7px;background:var(--cyan);border-radius:50%;margin:0 10px 2px 0}
.faq-card{padding:25px}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.accordion-item:last-child{border-bottom:0}
.accordion-button{background:#fff!important;color:var(--ink)!important;box-shadow:none!important;font-weight:750;padding:17px 3px}
.accordion-button:after{background-size:14px}
.accordion-body{padding:0 3px 17px;color:var(--muted);font-size:14px}
.cta-section{padding:0 0 88px}
.cta-box{background:#eaf2ff;padding:38px 44px;display:flex;justify-content:space-between;align-items:center;gap:24px;border-color:#cfe0fa}
.cta-box h2{color:var(--ink);font-size:28px;margin:0 0 8px}
.cta-box p{color:var(--muted);margin:0;max-width:650px}
.cta-actions{display:flex;gap:11px;flex-wrap:wrap;flex-shrink:0}
footer{background:#fff;border-top:1px solid var(--line);padding:42px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:46px}
.footer-copy{color:var(--muted);font-size:14px;max-width:360px;margin:15px 0 0}
.footer-title{font-weight:800;color:var(--ink);margin-bottom:12px}
.footer-links{display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:14px}
.footer-links a:hover{color:var(--blue)}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:34px;padding-top:17px;color:#8495a8;font-size:12px}
@media(max-width:992px){
 .page-hero-grid{gap:28px}
 .filter-grid{grid-template-columns:1fr 1fr}
 .index-layout{grid-template-columns:210px 1fr}
}
@media(max-width:768px){
 .container{width:min(100% - 30px,620px)}
 .brand-row{gap:13px;min-height:68px;flex-wrap:wrap;padding:12px 0}
 .search-box{order:3;flex-basis:100%;max-width:none;margin:0}
 .nav-action{font-size:13px;padding:9px 12px}
 .channel-nav a{padding-left:13px;padding-right:13px}
 .page-hero{padding:38px 0 45px}
 .page-hero-grid{grid-template-columns:1fr}
 .page-hero h1{font-size:38px}
 .section{padding:58px 0}
 .section-head{display:block}
 .index-layout{grid-template-columns:1fr}
 .side-index{position:static}
 .side-index nav{display:grid;grid-template-columns:1fr 1fr;gap:4px}
 .item-meta{display:none}
 .split-grid{grid-template-columns:1fr}
 .cta-box{display:block;padding:30px 25px}
 .cta-actions{margin-top:22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-grid>div:first-child{grid-column:1/-1}
 .copyright{display:block}
 .copyright span{display:block;margin-top:6px}
}
@media(max-width:520px){
 .container{width:calc(100% - 28px)}
 .brand{font-size:18px}
 .brand-mark{width:25px;height:25px;border-width:6px}
 .page-hero h1{font-size:32px}
 .hero-copy{font-size:16px}
 .filter-grid{grid-template-columns:1fr}
 .index-item{grid-template-columns:38px 1fr;gap:12px;padding:18px 0}
 .item-title{font-size:16px}
 .list-panel{padding:8px 18px}
 .side-index nav{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
}

/* roulang page: category2 */
:root{
      --blue:#2563eb;
      --blue-dark:#1746a2;
      --blue-soft:#eaf2ff;
      --cyan:#0f9f9a;
      --ink:#102a43;
      --text:#243b53;
      --muted:#66788a;
      --bg:#f6f9fd;
      --line:#dce7f3;
      --white:#fff;
      --radius:18px;
      --shadow:0 12px 32px rgba(30,64,175,.09);
      --shadow-hover:0 18px 38px rgba(30,64,175,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--text);background:var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.75;font-size:16px
    }
    a{color:inherit;text-decoration:none;transition:.2s ease}
    button,input,select,textarea{font:inherit}
    img{max-width:100%;display:block}
    :focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:3px}
    .site-header{background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .brand-row{min-height:74px;display:flex;align-items:center;gap:28px}
    .brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-size:21px;font-weight:800;white-space:nowrap}
    .brand-mark{width:28px;height:28px;border:7px solid var(--blue);border-radius:9px 9px 9px 3px;position:relative;display:inline-block}
    .brand-mark:after{content:"";position:absolute;width:10px;height:4px;background:var(--cyan);right:-10px;bottom:-5px;border-radius:3px}
    .search-box{max-width:350px;flex:1;margin-left:auto;position:relative}
    .search-box input{height:42px;border:1px solid var(--line);border-radius:10px;padding:0 16px;background:#fbfdff;width:100%;color:var(--ink)}
    .search-box input::placeholder{color:#8a9aad}
    .nav-action,.primary-btn,.outline-btn{
      min-height:44px;border-radius:10px;padding:10px 18px;font-weight:700;
      display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent
    }
    .primary-btn,.nav-action{background:var(--blue);color:#fff}
    .primary-btn:hover,.nav-action:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px)}
    .outline-btn{border-color:#a9c4ec;background:#fff;color:var(--blue)}
    .outline-btn:hover{background:var(--blue-soft);color:var(--blue-dark)}
    .channel-row{border-top:1px solid #f0f4f9}
    .channel-nav{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none}
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-nav a{min-height:48px;padding:11px 17px;display:flex;align-items:center;white-space:nowrap;color:var(--muted);font-weight:650;border-bottom:2px solid transparent}
    .channel-nav a:hover,.channel-nav a.active{color:var(--blue);background:var(--blue-soft);border-bottom-color:var(--blue)}
    .page-hero{padding:70px 0 64px;background:#edf5ff;border-bottom:1px solid #d9e8fb}
    .eyebrow,.section-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em}
    .breadcrumb{margin:16px 0 24px;font-size:14px;color:var(--muted)}
    .breadcrumb a{color:var(--blue)}
    .page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.2;color:var(--ink);font-weight:850;letter-spacing:-.04em;margin:0 0 20px}
    .hero-copy{font-size:18px;color:#4d647b;max-width:720px;margin:0}
    .hero-note{height:100%;background:#fff;border:1px solid #d6e5f7;border-radius:22px;box-shadow:var(--shadow);padding:26px}
    .panel-title{font-weight:800;color:var(--ink);font-size:19px}
    .note-line{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--muted)}
    .note-line:last-child{border-bottom:0}
    .status-dot{width:9px;height:9px;background:var(--cyan);border-radius:50%;flex:none}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--ink);font-weight:820;margin:8px 0 10px}
    .section-intro{color:var(--muted);max-width:680px;margin:0}
    .filter-bar{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px;margin-bottom:28px}
    .filter-bar label{display:block;color:var(--ink);font-weight:700;font-size:14px;margin-bottom:7px}
    .form-control,.form-select{min-height:44px;border:1px solid var(--line);border-radius:10px;color:var(--text);background:#fbfdff}
    .form-control:focus,.form-select:focus{border-color:#8eb4ef;box-shadow:0 0 0 .22rem rgba(37,99,235,.12)}
    .index-layout{display:grid;grid-template-columns:245px 1fr;gap:26px;align-items:start}
    .side-index{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px;position:sticky;top:145px}
    .side-index h3{color:var(--ink);font-size:17px;margin:0 0 12px}
    .side-index a{display:block;padding:11px 12px;border-radius:9px;color:var(--muted);margin:3px 0}
    .side-index a:hover,.side-index a.active{background:var(--blue-soft);color:var(--blue);font-weight:700}
    .topic-list{display:flex;flex-direction:column;gap:14px}
    .topic-item{display:grid;grid-template-columns:62px 1fr auto;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px 24px;box-shadow:var(--shadow);transition:.2s ease}
    .topic-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#a9c8f3}
    .topic-number{font-size:25px;color:#9bb8e8;font-weight:850}
    .topic-item h3{font-size:19px;color:var(--ink);margin:9px 0 5px;font-weight:800}
    .topic-item p{font-size:14px;color:var(--muted);margin:0}
    .tag{display:inline-block;background:#f0f6ff;color:var(--blue);border:1px solid #d9e8ff;border-radius:7px;padding:4px 9px;font-size:12px;font-weight:750}
    .topic-meta{font-size:13px;color:var(--muted);text-align:right;white-space:nowrap}
    .text-link{color:var(--blue);font-weight:750;display:inline-flex;margin-top:12px;align-items:center;gap:5px}
    .text-link:hover{color:var(--blue-dark);gap:9px}
    .feature-strip{background:#fff;border:1px solid var(--line);border-left:5px solid var(--cyan);border-radius:18px;box-shadow:var(--shadow);padding:28px 30px}
    .feature-strip h3{color:var(--ink);font-size:23px;font-weight:800;margin:8px 0}
    .feature-strip p{color:var(--muted);margin:0;max-width:760px}
    .feature-points{display:flex;gap:12px;flex-wrap:wrap;margin-top:19px}
    .point{background:#f5f9ff;color:var(--text);border-radius:9px;padding:8px 12px;font-size:14px}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .compare-card.result{border:2px solid #9fc3ff;background:#fafdff}
    .compare-title{display:flex;justify-content:space-between;align-items:center;color:var(--ink);font-size:19px;font-weight:800;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:15px}
    .compare-card ul{list-style:none;padding:0;margin:0}
    .compare-card li{padding:9px 0;color:var(--muted);border-bottom:1px dashed #e0e8f1}
    .compare-card li:last-child{border-bottom:0}
    .compare-card li:before{content:"";display:inline-block;width:7px;height:7px;background:var(--cyan);border-radius:50%;margin:0 11px 2px 0}
    .accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:12px;background:#fff;box-shadow:0 5px 16px rgba(30,64,175,.05)}
    .accordion-button{color:var(--ink);font-weight:750;background:#fff;padding:19px 21px;box-shadow:none!important}
    .accordion-button:not(.collapsed){color:var(--blue-dark);background:var(--blue-soft)}
    .accordion-button:after{background-size:15px}
    .accordion-body{color:var(--muted);padding:0 21px 20px;background:#fff}
    .cta{padding:64px 0;background:#eaf2ff}
    .form-card{padding:32px}
    .cta h2{color:var(--ink);font-weight:820;margin:0 0 12px;font-size:32px}
    .cta p{color:var(--muted);margin:0 0 20px}
    .required{color:#d14b4b}
    .privacy-note{font-size:13px;color:var(--muted);margin-top:14px}
    footer{background:#f0f5fb;border-top:1px solid var(--line);padding:48px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
    .footer-copy{color:var(--muted);font-size:14px;max-width:360px;margin:18px 0 0}
    .footer-title{color:var(--ink);font-weight:800;margin-bottom:13px}
    .footer-links{display:flex;flex-direction:column;gap:9px;color:var(--muted);font-size:14px}
    .footer-links a:hover{color:var(--blue)}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:#7b8da1;font-size:13px}
    @media (max-width:991px){
      .brand-row{gap:16px}.search-box{max-width:270px}
      .index-layout{grid-template-columns:1fr}.side-index{position:static}
      .side-index div{display:flex;gap:6px;overflow:auto;scrollbar-width:none}.side-index div::-webkit-scrollbar{display:none}
      .side-index a{white-space:nowrap}
    }
    @media (max-width:767px){
      .brand-row{min-height:68px;flex-wrap:wrap;padding:10px 0}.search-box{order:3;flex-basis:100%;max-width:none;margin:0 0 5px}
      .site-header{position:relative}.page-hero{padding:48px 0}.section{padding:60px 0}
      .hero-note{margin-top:28px}.topic-item{grid-template-columns:42px 1fr;gap:12px;padding:18px}.topic-meta{grid-column:2;text-align:left}
      .compare-grid,.footer-grid{grid-template-columns:1fr}.copyright{flex-direction:column;gap:5px}
      .section-head{display:block}.section-head .outline-btn{margin-top:18px}
    }
    @media (max-width:520px){
      body{font-size:15px}.brand{font-size:18px}.nav-action{padding:9px 12px;font-size:14px}
      .page-hero h1{font-size:34px}.hero-copy{font-size:16px}
      .filter-bar{padding:15px}.form-card{padding:22px}.cta h2{font-size:27px}
    }