/* roulang page: index */
:root{
      --brand:#2563a8;
      --brand-dark:#194d85;
      --brand-soft:#eaf3fb;
      --brand-pale:#f3f8fc;
      --ink:#15253a;
      --muted:#5f7185;
      --line:rgba(37,99,168,.13);
      --white:#fff;
      --page:#f7fafd;
      --coral:#d97761;
      --success:#177966;
      --shadow:0 14px 34px rgba(30,68,110,.09);
      --shadow-lg:0 22px 48px rgba(24,65,108,.15);
      --radius:20px;
      --radius-sm:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--page);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    ::selection{background:#cde1f4;color:var(--ink)}
    :focus-visible{outline:3px solid rgba(37,99,168,.4);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#e9f2fa;border-bottom:1px solid var(--line);font-size:12px;color:#466176}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar-links{display:flex;gap:20px;white-space:nowrap}
    .topbar-links a:hover{color:var(--brand);text-decoration:underline}
    .status-dot{width:7px;height:7px;border-radius:50%;display:inline-block;background:#32a68d;margin-right:7px;box-shadow:0 0 0 4px rgba(50,166,141,.13)}
    .site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(37,99,168,.09);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:11px;min-width:max-content}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);position:relative;box-shadow:0 8px 18px rgba(37,99,168,.22)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;left:9px;right:9px;height:3px;border-radius:9px;background:white}
    .brand-mark:before{top:11px;box-shadow:0 7px 0 rgba(255,255,255,.72)}
    .brand-mark:after{width:7px;right:auto;bottom:8px;background:#a9d3f3}
    .brand-text{font-size:17px;font-weight:800;letter-spacing:-.4px;line-height:1.2}
    .brand-text small{display:block;font-size:10px;letter-spacing:1.2px;color:var(--muted);font-weight:600;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
    .desktop-nav a{font-size:14px;font-weight:700;color:#456076;padding:9px 12px;border-radius:10px;transition:.2s}
    .desktop-nav a:hover,.desktop-nav a.active{background:var(--brand-soft);color:var(--brand)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mini-badge,.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:700;line-height:1;padding:7px 10px}
    .mini-badge{background:#eff8f5;color:var(--success);white-space:nowrap}
    .mini-badge i{width:6px;height:6px;border-radius:99px;background:var(--success)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 17px;border:1px solid transparent;border-radius:13px;font-size:14px;font-weight:800;line-height:1.2;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{background:var(--brand);color:white;box-shadow:0 9px 18px rgba(37,99,168,.20)}
    .btn-primary:hover{background:var(--brand-dark);box-shadow:0 12px 24px rgba(37,99,168,.28)}
    .btn-secondary{background:white;color:var(--brand);border-color:rgba(37,99,168,.25)}
    .btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand)}
    .btn-text{color:var(--brand);padding:5px 0;border-radius:0}
    .btn-text:hover{color:var(--brand-dark);text-decoration:underline;transform:translateX(3px)}
    .menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--brand)}
    .hero{position:relative;overflow:hidden;padding:34px 0 0;background:linear-gradient(180deg,#f0f7fc 0%,#f7fafd 100%)}
    .hero:before{content:"";position:absolute;width:520px;height:520px;right:-170px;top:-260px;border:1px solid rgba(37,99,168,.12);border-radius:50%;box-shadow:0 0 0 35px rgba(37,99,168,.025),0 0 0 70px rgba(37,99,168,.02)}
    .flashbar{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 15px;border:1px solid rgba(37,99,168,.16);border-radius:14px;background:white;box-shadow:0 9px 22px rgba(30,68,110,.06)}
    .flashbar strong{font-size:14px;color:var(--ink)}
    .flashbar p{margin:0;font-size:13px;color:var(--muted)}
    .timer{display:flex;align-items:center;gap:5px;color:var(--brand);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:800;font-size:14px;white-space:nowrap}
    .timer span{padding:3px 5px;background:var(--brand-soft);border-radius:6px}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:70px 0 66px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.4px}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--brand)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,4.3vw,56px);line-height:1.18;letter-spacing:-1.8px;margin:15px 0 20px;font-weight:850}
    h2{font-size:clamp(28px,3vw,36px);line-height:1.28;letter-spacing:-1px;margin-bottom:14px;font-weight:800}
    h3{font-size:20px;line-height:1.4;margin-bottom:9px;font-weight:800}
    .lead{max-width:620px;color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:25px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
    .hero-proof{display:flex;flex-wrap:wrap;gap:12px;color:#536b80;font-size:13px}
    .hero-proof span{display:flex;align-items:center;gap:6px}
    .hero-proof b{color:var(--brand)}
    .index-board{background:white;border:1px solid rgba(37,99,168,.15);border-radius:25px;padding:20px;box-shadow:var(--shadow-lg);transform:rotate(1deg);position:relative}
    .index-board:after{content:"";position:absolute;width:88%;height:87%;left:7%;bottom:-17px;border-radius:22px;background:rgba(141,191,224,.25);z-index:-1;transform:rotate(-3deg)}
    .board-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:15px;border-bottom:1px solid var(--line)}
    .board-title{font-size:14px;font-weight:800}
    .board-id{font:700 12px ui-monospace,monospace;color:var(--brand);background:var(--brand-soft);padding:5px 8px;border-radius:8px}
    .track{margin:20px 0 17px}
    .track-label{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:7px}
    .track-line{height:8px;border-radius:20px;background:#e6eef5;overflow:hidden}
    .track-line i{display:block;width:72%;height:100%;border-radius:inherit;background:var(--brand)}
    .board-cards{display:grid;grid-template-columns:1.1fr .9fr;gap:12px}
    .mini-panel{padding:14px;border:1px solid var(--line);border-radius:15px;background:#fbfdff}
    .mini-panel.blue{background:var(--brand);color:#fff;border-color:var(--brand)}
    .mini-panel .num{font-size:26px;font-weight:850;line-height:1.1}
    .mini-panel .label{font-size:12px;color:var(--muted);margin-top:5px}
    .mini-panel.blue .label{color:rgba(255,255,255,.78)}
    .subtitle-lines{display:grid;gap:7px;margin-top:13px}
    .subtitle-lines i{height:6px;background:#dce9f3;border-radius:8px;display:block}
    .subtitle-lines i:nth-child(2){width:78%}.subtitle-lines i:nth-child(3){width:51%}
    .data-strip{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);background:white;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
    .data-strip div{padding:19px 22px;border-right:1px solid var(--line)}
    .data-strip div:last-child{border-right:0}
    .data-strip b{display:block;font-size:15px;color:var(--ink)}
    .data-strip span{font-size:12px;color:var(--muted)}
    section{padding:100px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-head p{max-width:590px;margin:0;color:var(--muted);font-size:15px}
    .section-kicker{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:1.1px;text-transform:uppercase;margin-bottom:8px}
    .path-section{padding-bottom:95px}
    .path-layout{display:grid;grid-template-columns:300px 1fr;gap:28px}
    .path-nav{padding:9px;background:#edf5fb;border-radius:18px;height:max-content}
    .path-nav a{display:flex;align-items:center;gap:11px;padding:13px;border-radius:13px;font-size:14px;font-weight:700;color:#5b7085;transition:.2s}
    .path-nav a span{display:grid;place-items:center;width:26px;height:26px;background:white;border-radius:8px;color:var(--brand);font:800 12px ui-monospace,monospace}
    .path-nav a:hover,.path-nav a.active{background:white;color:var(--brand);box-shadow:0 5px 14px rgba(30,68,110,.08)}
    .feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .feature-card{min-height:220px;padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:white;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:.25s}
    .feature-card:hover,.info-card:hover,.testimonial:hover,.quick-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,168,.3)}
    .feature-card:before{content:attr(data-number);position:absolute;right:20px;top:10px;font-size:70px;font-weight:850;color:#f0f6fb;line-height:1}
    .feature-card p{position:relative;color:var(--muted);font-size:14px;max-width:390px;margin-bottom:18px}
    .feature-card.wide{grid-row:span 2;background:#fff}
    .feature-card .badge{background:var(--brand-soft);color:var(--brand);margin-bottom:21px}
    .feature-card .tag-row{position:absolute;bottom:24px;left:27px;display:flex;gap:7px;flex-wrap:wrap}
    .tag{display:inline-block;border-radius:7px;padding:4px 7px;background:#f1f5f8;color:#63768a;font-size:11px;font-weight:700}
    .notice-line{grid-column:1/-1;background:#eaf3fb;border-left:4px solid var(--brand);border-radius:12px;padding:14px 17px;color:#48667e;font-size:14px}
    .latest{background:white;border-top:1px solid rgba(37,99,168,.08);border-bottom:1px solid rgba(37,99,168,.08)}
    .latest-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:26px}
    .focus-card{padding:31px;min-height:390px;border-radius:22px;background:#eaf3fb;border:1px solid var(--line);position:relative;overflow:hidden}
    .focus-card:after{content:"字幕 / INDEX";position:absolute;right:-22px;bottom:12px;color:rgba(37,99,168,.09);font-size:51px;font-weight:850;letter-spacing:-3px}
    .focus-card p{position:relative;max-width:530px;color:var(--muted);font-size:15px}
    .focus-meta{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0}
    .focus-visual{position:absolute;right:29px;bottom:30px;width:230px;padding:14px;background:white;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);transform:rotate(-4deg)}
    .focus-visual div{height:9px;border-radius:8px;background:#e4eef6;margin:8px 0}
    .focus-visual div:nth-child(2){width:79%;background:#7eb0d8}.focus-visual div:nth-child(3){width:58%}
    .update-list{display:grid;gap:11px}
    .update-item{display:flex;gap:13px;align-items:flex-start;padding:15px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.2s}
    .update-item:hover{box-shadow:var(--shadow);border-color:rgba(37,99,168,.3)}
    .datebox{min-width:46px;text-align:center;border-radius:10px;padding:6px;background:var(--brand-soft);color:var(--brand);font:800 11px/1.35 ui-monospace,monospace}
    .update-item strong{display:block;font-size:14px;line-height:1.45}.update-item p{margin:3px 0 0;font-size:12px;line-height:1.6;color:var(--muted)}
    .quick{padding:88px 0;background:var(--page)}
    .quick-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center}
    .quick-copy p{color:var(--muted);max-width:430px}
    .quick-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .quick-card{padding:21px;background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:0 8px 20px rgba(30,68,110,.05);transition:.2s}
    .quick-icon{width:35px;height:35px;border-radius:11px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand);font-weight:850;margin-bottom:13px}
    .quick-card h3{font-size:16px;margin-bottom:5px}.quick-card p{margin:0;font-size:13px;color:var(--muted);line-height:1.65}
    .rail-wrap{margin-top:35px;border:1px solid var(--line);border-radius:18px;padding:19px 23px;background:#fbfdff}
    .rail-label{font-size:13px;font-weight:800;color:var(--brand);margin-bottom:18px}
    .update-rail{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
    .update-rail:before{content:"";position:absolute;top:8px;left:5%;right:5%;height:2px;background:#d7e7f3}
    .rail-point{position:relative;padding-top:25px;font-size:12px;color:var(--muted)}
    .rail-point:before{content:"";position:absolute;top:1px;left:0;width:15px;height:15px;border:3px solid var(--brand-soft);background:#fff;border-radius:50%}
    .rail-point.current:before{background:var(--brand);border-color:var(--brand)}
    .rail-point b{display:block;color:var(--ink);font-size:13px;margin-bottom:2px}
    .safety{background:#edf5fb}
    .safe-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:17px}
    .safe-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
    .safe-card .safe-no{font:800 12px ui-monospace,monospace;color:var(--brand)}
    .safe-card p{margin:0;color:var(--muted);font-size:14px}
    .testimonials{padding:94px 0;background:#f0f6fb;overflow:hidden}
    .testimonial-row{display:flex;gap:17px;overflow-x:auto;padding:8px 4px 18px;scroll-snap-type:x mandatory}
    .testimonial-row::-webkit-scrollbar{height:7px}.testimonial-row::-webkit-scrollbar-thumb{background:#b9d3e6;border-radius:9px}
    .testimonial{min-width:calc(50% - 9px);padding:27px;background:#fff;border:1px solid var(--line);border-radius:19px;box-shadow:var(--shadow);transition:.2s;scroll-snap-align:start}
    .testimonial:first-child{min-width:54%}
    .person{display:flex;align-items:center;gap:10px;margin-bottom:18px}
    .avatar{width:39px;height:39px;border-radius:50%;display:grid;place-items:center;background:var(--brand);color:white;font-size:13px;font-weight:800}
    .person b{display:block;font-size:14px}.person span{font-size:12px;color:var(--muted)}
    .quote{font-size:16px;line-height:1.8;color:#2d465e;margin:0 0 16px}
    .stars{color:#d89044;font-size:14px;letter-spacing:2px}
    .cta-section{padding:96px 0 44px}
    .cta-box{position:relative;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr;gap:35px;align-items:center;padding:53px 57px;border-radius:25px;background:#e7f2fa;border:1px solid rgba(37,99,168,.14)}
    .cta-box:before{content:"";position:absolute;right:-80px;top:-110px;width:360px;height:360px;border:28px solid rgba(37,99,168,.08);border-radius:50%}
    .cta-box p{max-width:560px;color:var(--muted)}
    .cta-art{position:relative;min-height:165px}
    .folder{position:absolute;right:30px;top:20px;width:250px;height:144px;border-radius:17px;background:#fff;border:1px solid rgba(37,99,168,.17);box-shadow:var(--shadow);padding:21px}
    .folder:before{content:"";position:absolute;top:-12px;left:18px;width:85px;height:14px;background:#fff;border:1px solid rgba(37,99,168,.17);border-bottom:0;border-radius:8px 8px 0 0}
    .folder b{font-size:13px;color:var(--brand)}
    .folder i{display:block;margin-top:13px;height:8px;border-radius:6px;background:#dceaf4}.folder i:nth-of-type(2){width:73%}.folder i:nth-of-type(3){width:46%;background:#8ab9dc}
    .faq{padding:55px 0 98px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 17px}
    details{background:#fff;border:1px solid var(--line);border-radius:14px;transition:.2s}
    details[open]{background:#f3f8fc;border-color:rgba(37,99,168,.28)}
    summary{list-style:none;position:relative;padding:17px 48px 17px 18px;font-size:14px;font-weight:800;cursor:pointer}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:18px;top:14px;color:var(--brand);font-size:23px;font-weight:400;transition:.2s}
    details[open] summary:after{transform:rotate(45deg)}
    .answer{padding:0 18px 18px;color:var(--muted);font-size:14px;line-height:1.8}
    footer{background:#e9f1f7;border-top:1px solid var(--line)}
    .footer-main{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:45px;padding:52px 0 35px}
    .footer-main p{color:var(--muted);font-size:13px;max-width:420px;margin:15px 0 0}
    .footer-title{font-size:13px;font-weight:850;margin:5px 0 13px;color:#38556e}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:var(--muted);transition:.2s}
    .footer-links a:hover{color:var(--brand);padding-left:3px}
    .footer-bottom{padding:17px 0;border-top:1px solid rgba(37,99,168,.12);font-size:12px;color:#718397;display:flex;justify-content:space-between;gap:15px}
    .backtop{position:fixed;right:20px;bottom:22px;z-index:20;width:42px;height:42px;border:1px solid var(--line);border-radius:13px;background:#fff;color:var(--brand);box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.2s}
    .backtop.show{opacity:1;pointer-events:auto}.backtop:hover{background:var(--brand);color:#fff;transform:translateY(-3px)}
    @media(max-width:1024px){.desktop-nav{gap:0}.desktop-nav a{padding:8px}.hero-grid{gap:30px}.path-layout{grid-template-columns:250px 1fr}.footer-main{gap:28px}}
    @media(max-width:768px){
      .topbar-links{display:none}.topbar-inner{justify-content:center}.nav-wrap{height:67px}.desktop-nav,.nav-actions .mini-badge,.nav-actions .btn{display:none}.menu-btn{display:block}.nav-actions{margin-left:auto}
      .mobile-menu{display:none;position:absolute;top:67px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:13px 20px 18px;box-shadow:var(--shadow)}.mobile-menu.open{display:grid;gap:5px}.mobile-menu a{padding:12px;border-radius:10px;font-weight:700;color:#4c667b}.mobile-menu a:hover{background:var(--brand-soft);color:var(--brand)}
      .hero-grid,.latest-grid,.quick-grid,.cta-box{grid-template-columns:1fr}.hero-grid{padding:48px 0}.index-board{max-width:540px;margin:auto}.data-strip{grid-template-columns:1fr 1fr}.data-strip div:nth-child(2){border-right:0}.data-strip div:nth-child(-n+2){border-bottom:1px solid var(--line)}
      section{padding:68px 0}.section-head{display:block}.section-head p{margin-top:10px}.path-layout{grid-template-columns:1fr}.path-nav{display:flex;overflow-x:auto;gap:5px}.path-nav a{white-space:nowrap}.feature-grid{grid-template-columns:1fr}.feature-card.wide{grid-row:auto}.safe-grid{grid-template-columns:1fr}.testimonial,.testimonial:first-child{min-width:82%}.cta-box{padding:36px 28px}.cta-art{display:none}.faq-grid{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      .container{width:min(100% - 28px,1180px)}.brand-text{font-size:15px}.flashbar{align-items:flex-start;flex-direction:column}.timer{font-size:13px}h1{font-size:34px;letter-spacing:-1.2px}.lead{font-size:15px}.hero-actions .btn{width:100%}.data-strip div{padding:14px}.data-strip b{font-size:13px}.board-cards{grid-template-columns:1fr}.quick-list{grid-template-columns:1fr}.focus-card{padding:24px;min-height:350px}.focus-visual{right:18px;bottom:22px;width:190px}.update-rail{grid-template-columns:1fr 1fr;gap:18px}.update-rail:before{display:none}.footer-main{grid-template-columns:1fr;gap:20px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:4px}.testimonial,.testimonial:first-child{min-width:92%}
    }

/* roulang page: category2 */
:root{--brand:#2563a8;--brand-dark:#194d85;--brand-soft:#eaf3fb;--brand-pale:#f3f8fc;--ink:#15253a;--muted:#5f7185;--line:rgba(37,99,168,.13);--white:#fff;--page:#f7fafd;--coral:#d97761;--success:#177966;--shadow:0 14px 34px rgba(30,68,110,.09);--shadow-lg:0 22px 48px rgba(24,65,108,.15);--radius:20px;--radius-sm:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--page);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}button,a,input,select,textarea{outline:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(37,99,168,.32);outline-offset:3px}.container{width:min(1180px,calc(100% - 40px));margin:auto}
.topbar{background:#e9f2fa;border-bottom:1px solid var(--line);font-size:12px;color:#466176}.topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar-links{display:flex;gap:20px;white-space:nowrap}.topbar-links a:hover{color:var(--brand);text-decoration:underline}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(37,99,168,.09);backdrop-filter:blur(10px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:11px;min-width:max-content}.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);position:relative;box-shadow:0 8px 18px rgba(37,99,168,.22)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;left:9px;right:9px;height:3px;border-radius:9px;background:#fff}.brand-mark:before{top:11px;box-shadow:0 7px 0 rgba(255,255,255,.72)}.brand-mark:after{width:7px;right:auto;bottom:8px;background:#a9d3f3}.brand-text{font-size:17px;font-weight:800;letter-spacing:-.4px;line-height:1.2}.brand-text small{display:block;font-size:10px;letter-spacing:1.2px;color:var(--muted);font-weight:600;margin-top:3px}.desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.desktop-nav a{font-size:14px;font-weight:700;color:#456076;padding:9px 12px;border-radius:10px;transition:.2s}.desktop-nav a:hover,.desktop-nav a.active{background:var(--brand-soft);color:var(--brand)}.nav-actions{display:flex;align-items:center;gap:10px}.mini-badge,.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:700;line-height:1;padding:7px 10px}.mini-badge{background:#eff8f5;color:var(--success);white-space:nowrap}.mini-badge i{width:6px;height:6px;border-radius:99px;background:var(--success)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 17px;border:1px solid transparent;border-radius:13px;font-size:14px;font-weight:800;line-height:1.2;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 9px 18px rgba(37,99,168,.20)}.btn-primary:hover{background:var(--brand-dark);box-shadow:0 12px 24px rgba(37,99,168,.28)}.btn-secondary{background:#fff;color:var(--brand);border-color:rgba(37,99,168,.25)}.btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand)}.btn-text{color:var(--brand);padding:5px 0}.btn-text:hover{color:var(--brand-dark);text-decoration:underline;transform:translateX(3px)}.menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--brand)}.mobile-menu{display:none}
.hero{padding:46px 0 58px;background:linear-gradient(180deg,#edf6fc 0%,#f7fafd 100%);position:relative;overflow:hidden}.hero:after{content:"02";position:absolute;right:8%;top:-35px;font:800 180px/1 Arial;color:rgba(37,99,168,.045)}.crumb{position:relative;z-index:1;font-size:13px;color:var(--muted);margin-bottom:23px}.crumb a{color:var(--brand)}.crumb a:hover{text-decoration:underline}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:end}.badge-blue{background:#dceefa;color:var(--brand)}.badge-coral{background:#fff0ec;color:#b85d4c}.hero h1{font-size:48px;letter-spacing:-1.7px;line-height:1.22;margin:14px 0 15px;font-weight:850}.hero p{margin:0;max-width:700px;color:var(--muted)}.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;font-size:13px;color:#506a80}.hero-meta span{display:flex;align-items:center;gap:6px}.hero-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow)}.panel-head{display:flex;justify-content:space-between;font-size:13px;font-weight:800}.status-line{height:9px;border-radius:99px;background:#dcebf6;margin:20px 0 14px;overflow:hidden}.status-line i{display:block;width:78%;height:100%;border-radius:inherit;background:var(--brand)}.panel-list{display:grid;gap:10px}.panel-list div{display:flex;justify-content:space-between;padding-top:9px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.panel-list b{color:var(--ink)}
section{padding:88px 0}.section-kicker{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:1.1px;margin-bottom:8px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:32px}.section-head h2{margin:0;font-size:33px;letter-spacing:-.8px;line-height:1.3}.section-head p{max-width:575px;color:var(--muted);margin:0;font-size:15px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px;box-shadow:var(--shadow);transition:.2s}.stat:hover{transform:translateY(-4px);border-color:rgba(37,99,168,.33)}.stat small{display:block;color:var(--muted);font-size:12px}.stat strong{display:block;font-size:18px;margin:5px 0;color:var(--ink)}.stat em{font-style:normal;font-size:12px;color:var(--success)}
.update-layout{display:grid;grid-template-columns:5fr 7fr;gap:42px;align-items:start}.timeline{padding:7px 0 7px 18px;border-left:2px solid #c8dfef}.time-item{position:relative;padding:0 0 31px 26px}.time-item:before{content:"";position:absolute;width:14px;height:14px;border-radius:50%;left:-26px;top:7px;background:#fff;border:3px solid #8bb9dc}.time-item.current:before{background:var(--brand);border-color:var(--brand);box-shadow:0 0 0 6px rgba(37,99,168,.12)}.time-item:last-child{padding-bottom:0}.time-date{font:700 12px ui-monospace,SFMono-Regular,monospace;color:var(--brand)}.time-item h3{font-size:18px;margin:5px 0}.time-item p{font-size:14px;color:var(--muted);margin:0}.notes{display:grid;gap:14px}.note-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.22s}.note-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.note-top{display:flex;justify-content:space-between;align-items:center;gap:15px}.note-card h3{font-size:20px;margin:12px 0 8px}.note-card p{margin:0;color:var(--muted);font-size:14px}.note-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:17px}.tags{display:flex;gap:7px;flex-wrap:wrap}.tag{font-size:12px;color:#48677e;background:var(--brand-pale);padding:4px 9px;border-radius:999px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.quick{display:block;background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px;box-shadow:var(--shadow);transition:.2s}.quick:hover{transform:translateY(-4px);border-color:rgba(37,99,168,.35);box-shadow:var(--shadow-lg)}.quick-icon{display:grid;place-items:center;width:37px;height:37px;border-radius:12px;background:var(--brand-soft);color:var(--brand);font-weight:900}.quick h3{font-size:16px;margin:13px 0 5px}.quick p{font-size:13px;color:var(--muted);margin:0;line-height:1.65}.quick span{display:block;color:var(--brand);margin-top:13px;font-weight:800}
.related-grid{display:grid;grid-template-columns:1.2fr repeat(3,.6fr);gap:14px}.related-main,.related-mini{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden;transition:.2s}.related-main:hover,.related-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.related-art{height:168px;background:linear-gradient(135deg,#dceefa,#f5faff);position:relative;overflow:hidden}.related-art:before{content:"字幕 / 索引";position:absolute;left:22px;bottom:23px;color:var(--brand);font-weight:850;font-size:26px}.related-art:after{content:"";position:absolute;right:22px;top:24px;width:82px;height:55px;border:2px solid rgba(37,99,168,.3);border-radius:9px;box-shadow:0 11px 0 -7px rgba(37,99,168,.25),0 22px 0 -7px rgba(37,99,168,.2)}.related-copy{padding:20px}.related-copy h3{margin:7px 0;font-size:19px}.related-copy p{font-size:13px;color:var(--muted);margin:0}.related-mini{padding:18px;display:flex;flex-direction:column;justify-content:space-between;min-height:230px}.related-mini .num{font:800 25px ui-monospace,monospace;color:#c0d8ea}.related-mini h3{font-size:16px;line-height:1.45;margin:18px 0 8px}.related-mini p{font-size:12px;color:var(--muted);line-height:1.7;margin:0}
.feedback-area{background:#eaf3fb}.feedback-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}.form-card,.assist{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}.form-card h2,.assist h2{font-size:28px;line-height:1.35;margin:0 0 8px}.form-card>p,.assist>p{margin:0 0 21px;color:var(--muted);font-size:14px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:6px;margin-bottom:14px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:800}.required{color:#c75c4b}.field input,.field select,.field textarea{width:100%;border:1px solid #c9dbe9;background:#fbfdff;color:var(--ink);border-radius:11px;padding:11px 12px;transition:.2s}.field textarea{height:104px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(37,99,168,.10)}.form-note{font-size:12px;color:var(--muted);margin:13px 0 0}.assist-list{display:grid;gap:12px;margin:19px 0 24px}.assist-list div{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}.assist-list b{display:block;color:var(--brand);font-size:12px}.faq-list{display:grid;gap:10px}details{background:#f7fbfe;border:1px solid var(--line);border-radius:13px;overflow:hidden}summary{list-style:none;cursor:pointer;padding:14px 16px;font-weight:800;font-size:14px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:15px;color:var(--brand);font-size:20px;font-weight:400;top:9px}details[open] summary:after{content:"−"}details p{margin:0;padding:0 16px 15px;color:var(--muted);font-size:13px;line-height:1.75}
footer{background:#eef4f8;border-top:1px solid var(--line);padding:58px 0 20px}.footer-main{display:grid;grid-template-columns:1.5fr .75fr .75fr;gap:40px}.footer-main p{max-width:390px;color:var(--muted);font-size:13px;margin:16px 0 0}.footer-title{font-size:13px;font-weight:850;margin-bottom:13px}.footer-links{display:grid;gap:8px;font-size:13px;color:var(--muted)}.footer-links a:hover{color:var(--brand);text-decoration:underline}.footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;color:#718396;font-size:12px}
.back-top{position:fixed;right:22px;bottom:22px;z-index:20;width:42px;height:42px;border:1px solid var(--line);border-radius:13px;background:#fff;color:var(--brand);box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s}.back-top.show{opacity:1;visibility:visible}.back-top:hover{background:var(--brand);color:#fff;transform:translateY(-3px)}
@media(max-width:1024px){.stats{grid-template-columns:repeat(2,1fr)}.update-layout{gap:25px}.quick-grid{grid-template-columns:repeat(2,1fr)}.related-grid{grid-template-columns:1fr 1fr}.related-main{grid-column:span 2}.footer-main{gap:25px}}
@media(max-width:768px){.container{width:min(100% - 32px,1180px)}.topbar-links{display:none}.topbar-inner{justify-content:center}.desktop-nav,.nav-actions .mini-badge,.nav-actions .btn{display:none}.menu-btn{display:block}.mobile-menu{padding:0 16px 16px;background:#fff;border-top:1px solid var(--line)}.mobile-menu.open{display:grid}.mobile-menu a{padding:11px 13px;border-radius:10px;font-size:14px;font-weight:700}.mobile-menu a:hover{background:var(--brand-soft);color:var(--brand)}.hero{padding:32px 0 42px}.hero-grid,.feedback-grid{grid-template-columns:1fr}.hero h1{font-size:35px}.hero-panel{margin-top:4px}.section-head{display:block}.section-head h2{font-size:28px}.section-head p{margin-top:11px}.update-layout{grid-template-columns:1fr}.timeline{margin-left:8px}.footer-main{grid-template-columns:1fr 1fr}.footer-main>div:first-child{grid-column:1/-1}}
@media(max-width:520px){.nav-wrap{height:67px}.brand-text{font-size:14px}.brand-mark{width:31px;height:31px}.hero h1{font-size:31px}.stats,.quick-grid,.related-grid,.field-grid{grid-template-columns:1fr}.related-main{grid-column:auto}.section-head h2{font-size:26px}section{padding:62px 0}.note-top,.note-bottom{align-items:flex-start;flex-direction:column}.footer-main{grid-template-columns:1fr}.footer-main>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}.back-top{right:14px;bottom:14px}}

/* roulang page: category1 */
:root{
      --brand:#2563a8;--brand-dark:#194d85;--brand-soft:#eaf3fb;
      --brand-pale:#f3f8fc;--ink:#15253a;--muted:#5f7185;
      --line:rgba(37,99,168,.13);--white:#fff;--page:#f7fafd;
      --coral:#d97761;--success:#177966;--shadow:0 14px 34px rgba(30,68,110,.09);
      --shadow-lg:0 22px 48px rgba(24,65,108,.15);--radius:20px;--radius-sm:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--page);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img,svg{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#e9f2fa;border-bottom:1px solid var(--line);font-size:12px;color:#466176}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar-links{display:flex;gap:20px;white-space:nowrap}
    .topbar a:hover{color:var(--brand);text-decoration:underline}
    .site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.95);border-bottom:1px solid rgba(37,99,168,.09);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:11px;min-width:max-content}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);position:relative;box-shadow:0 8px 18px rgba(37,99,168,.22)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;left:9px;right:9px;height:3px;border-radius:9px;background:#fff}
    .brand-mark:before{top:11px;box-shadow:0 7px 0 rgba(255,255,255,.72)}
    .brand-mark:after{width:7px;right:auto;bottom:8px;background:#a9d3f3}
    .brand-text{font-size:17px;font-weight:800;letter-spacing:-.4px;line-height:1.2}
    .brand-text small{display:block;font-size:10px;letter-spacing:1.2px;color:var(--muted);font-weight:600;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
    .desktop-nav a{font-size:14px;font-weight:700;color:#456076;padding:9px 12px;border-radius:10px;transition:.2s}
    .desktop-nav a:hover,.desktop-nav a.active{background:var(--brand-soft);color:var(--brand)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mini-badge,.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:700;line-height:1;padding:7px 10px}
    .mini-badge{background:#eff8f5;color:var(--success);white-space:nowrap}
    .mini-badge i{width:6px;height:6px;border-radius:99px;background:var(--success)}
    .badge-blue{background:var(--brand-soft);color:var(--brand)}
    .badge-coral{background:#fff0ec;color:#a75543}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 17px;border:1px solid transparent;border-radius:13px;font-size:14px;font-weight:800;line-height:1.2;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.desktop-nav a:focus-visible,.mobile-menu a:focus-visible,summary:focus-visible{outline:3px solid rgba(37,99,168,.3);outline-offset:3px}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 9px 18px rgba(37,99,168,.2)}
    .btn-primary:hover{background:var(--brand-dark);box-shadow:0 12px 24px rgba(37,99,168,.28)}
    .btn-secondary{background:#fff;color:var(--brand);border-color:rgba(37,99,168,.25)}
    .btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand)}
    .btn-text{color:var(--brand);padding:5px 0;border-radius:0}
    .btn-text:hover{color:var(--brand-dark);text-decoration:underline;transform:translateX(3px)}
    .menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--brand)}
    .mobile-menu{display:none;padding:10px 20px 18px;border-top:1px solid var(--line);background:#fff}
    .mobile-menu a{display:block;padding:10px 0;color:#456076;font-weight:700}
    .hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#f0f7fc,#f7fafd);padding:58px 0 68px}
    .hero:after{content:"";position:absolute;right:-120px;top:-180px;width:480px;height:480px;border:1px solid rgba(37,99,168,.12);border-radius:50%;box-shadow:0 0 0 32px rgba(37,99,168,.025),0 0 0 68px rgba(37,99,168,.018)}
    .hero-content{position:relative;z-index:1}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--brand)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.4px}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--brand)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,52px);line-height:1.2;letter-spacing:-1.5px;margin:14px 0 18px;font-weight:800;max-width:760px}
    h2{font-size:34px;line-height:1.3;letter-spacing:-.8px;margin-bottom:12px}
    h3{font-size:20px;line-height:1.4;margin-bottom:9px}
    .hero-copy{max-width:730px;color:var(--muted);font-size:16px;margin-bottom:25px}
    .hero-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .filter-wrap{margin-top:-26px;position:relative;z-index:5}
    .filter-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
    .filter-btn{border:0;background:transparent;color:var(--muted);padding:9px 14px;border-radius:10px;font-size:13px;font-weight:700;transition:.2s}
    .filter-btn:hover,.filter-btn.active{background:var(--brand-soft);color:var(--brand)}
    .filter-btn:focus-visible{outline:3px solid rgba(37,99,168,.25);outline-offset:2px}
    section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:1.1px;margin-bottom:8px}
    .section-head p{max-width:600px;margin:0;color:var(--muted);font-size:15px}
    .browse-layout{display:grid;grid-template-columns:245px 1fr;gap:30px;align-items:start}
    .side-panel{position:sticky;top:104px;padding:18px;background:#edf5fb;border-radius:18px}
    .side-title{font-size:13px;font-weight:800;color:var(--ink);padding:0 10px 10px}
    .side-link{display:flex;justify-content:space-between;align-items:center;padding:10px;border-radius:11px;color:#587086;font-size:14px;font-weight:700;transition:.2s}
    .side-link:hover,.side-link.active{background:#fff;color:var(--brand);box-shadow:0 5px 14px rgba(30,68,110,.07)}
    .side-note{margin-top:15px;padding:15px;background:#fff;border:1px solid var(--line);border-radius:14px;color:var(--muted);font-size:12px;line-height:1.7}
    .topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s}
    .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,168,.3)}
    .topic-card.feature{grid-column:1/-1;display:grid;grid-template-columns:1.15fr .85fr}
    .cover{min-height:190px;background:#eaf3fb;position:relative;overflow:hidden;padding:20px}
    .feature .cover{min-height:230px}
    .cover:before{content:"";position:absolute;inset:18px;border:1px solid rgba(37,99,168,.18);border-radius:14px;background:repeating-linear-gradient(0deg,transparent 0 25px,rgba(37,99,168,.08) 26px 27px)}
    .cover:after{content:"字幕索引  /  01";position:absolute;left:30px;bottom:27px;color:var(--brand);font:700 12px ui-monospace,monospace;letter-spacing:1px}
    .cover-stack{position:relative;z-index:1;background:#fff;border-left:4px solid var(--brand);padding:14px 15px;width:72%;box-shadow:0 12px 22px rgba(30,68,110,.1);border-radius:10px}
    .cover-stack b{display:block;font-size:17px;line-height:1.4}
    .cover-stack span{display:block;color:var(--muted);font-size:11px;margin-top:5px}
    .card-body{padding:22px}
    .card-body h3{margin:13px 0 8px}
    .card-body p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:15px}
    .card-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;color:var(--muted);font-size:12px}
    .card-link{color:var(--brand);font-weight:800}
    .card-link:hover{text-decoration:underline}
    .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:13px}
    .tag{padding:4px 8px;border-radius:7px;background:#f1f6fa;color:#587086;font-size:11px}
    .path-section{background:#fff}
    .path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
    .path-step{position:relative;padding:27px 28px;border-right:1px solid var(--line)}
    .path-step:last-child{border-right:0}
    .step-no{color:var(--brand);font:800 24px ui-monospace,monospace}
    .path-step p{color:var(--muted);font-size:14px;margin:0}
    .recommend{padding-top:70px}
    .recommend-row{display:flex;gap:16px;overflow:auto;padding:4px 2px 14px}
    .recommend-card{min-width:260px;flex:1;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);transition:.2s}
    .recommend-card:hover{transform:translateY(-4px);border-color:rgba(37,99,168,.3)}
    .recommend-card p{font-size:13px;color:var(--muted);margin:5px 0 12px}
    .compact-cta{background:var(--brand-soft);border:1px solid rgba(37,99,168,.12);border-radius:24px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .compact-cta p{color:var(--muted);margin:0;max-width:650px;font-size:15px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;white-space:nowrap}
    .faq-section{padding-top:78px}
    .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 20px}
    details{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
    summary{list-style:none;cursor:pointer;padding:17px 20px;font-weight:800;font-size:14px;display:flex;justify-content:space-between;gap:15px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--brand);font-size:20px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{margin:0;padding:0 20px 18px;background:#f1f7fb;color:var(--muted);font-size:13px}
    footer{background:#edf3f8;color:#40566c;margin-top:24px}
    .footer-main{display:grid;grid-template-columns:1.6fr .8fr .8fr;gap:55px;padding:58px 0 42px}
    .footer-main p{max-width:360px;color:var(--muted);font-size:13px;margin:18px 0 0}
    .footer-title{font-size:13px;font-weight:800;color:var(--ink);margin-bottom:12px}
    .footer-links{display:grid;gap:7px;font-size:13px}
    .footer-links a:hover{color:var(--brand);text-decoration:underline}
    .footer-bottom{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;padding:18px 0 22px;color:#718397;font-size:11px}
    @media(max-width:1024px){.nav-actions .btn{display:none}.browse-layout{grid-template-columns:210px 1fr}}
    @media(max-width:768px){
      .container{width:min(100% - 30px,620px)}.desktop-nav{display:none}.menu-btn{display:block}
      .mobile-menu.open{display:block}.hero{padding-top:38px}.hero-grid{grid-template-columns:1fr}
      .browse-layout{grid-template-columns:1fr}.side-panel{position:static}.topic-card.feature{display:block}
      .path-grid{grid-template-columns:1fr}.path-step{border-right:0;border-bottom:1px solid var(--line)}.path-step:last-child{border-bottom:0}
      .compact-cta{display:block;padding:30px 24px}.cta-actions{margin-top:20px}
      .faq-grid,.footer-main{grid-template-columns:1fr}.footer-main{gap:28px;padding-top:42px}
    }
    @media(max-width:640px){
      .topbar-links{display:none}.topbar-inner{justify-content:flex-start}.nav-wrap{height:68px}
      .brand-text{font-size:15px}.hero{padding-bottom:58px}h1{font-size:36px}
      section{padding:65px 0}.topic-grid{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:10px}
      .feature .cover{min-height:190px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }