/* roulang page: index */
:root{
      --ink:#17151d;--ink-soft:#24212d;--paper:#f4f1ed;--paper-2:#ebe7e2;
      --text:#292631;--muted:#716b78;--line:rgba(41,38,49,.13);
      --violet:#7149d8;--pink:#d94d8b;--orange:#e88950;--cyan:#72c8c6;
      --grad:linear-gradient(120deg,#7149d8 0%,#d94d8b 58%,#e88950 100%);
      --radius-lg:30px;--radius-md:18px;--shadow:0 22px 60px rgba(32,24,43,.13);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}
    a{color:inherit;text-decoration:none;transition:all .22s ease}
    a:hover{text-decoration:underline;text-underline-offset:4px}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .wrap{max-width:1240px;margin:0 auto;padding:0 28px}
    .site-header{position:absolute;top:0;left:0;right:0;z-index:5}
    .nav{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;letter-spacing:-.03em}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);position:relative;box-shadow:0 8px 20px rgba(217,77,139,.3)}
    .brand-mark:after{content:"";position:absolute;width:11px;height:11px;border:2px solid #fff;border-radius:50%;right:7px;top:7px}
    .brand-text{max-width:210px;line-height:1.25;font-size:15px}
    .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav-links a{color:rgba(255,255,255,.72);padding:9px 13px;border-radius:10px;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.11);text-decoration:none}
    .nav-cta{background:#fff!important;color:var(--ink)!important;font-weight:700!important;padding:10px 17px!important}
    .menu-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:10px;padding:8px 12px}
    .hero{background:var(--ink);color:#fff;min-height:690px;padding:145px 0 78px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(113,73,216,.25),transparent 47%,rgba(217,77,139,.17));pointer-events:none}
    .hero:after{content:"";position:absolute;width:620px;height:620px;border:1px solid rgba(255,255,255,.08);border-radius:50%;right:-130px;top:70px;box-shadow:0 0 0 36px rgba(255,255,255,.025),0 0 0 72px rgba(255,255,255,.018)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);font-weight:800}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,5.4vw,72px);line-height:1.12;letter-spacing:-.065em;margin:18px 0 24px;max-width:690px}
    .hero-copy{font-size:18px;color:rgba(255,255,255,.72);max-width:600px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0 28px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;font-weight:750;border:1px solid transparent;transition:all .22s ease}
    .button:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 25px rgba(0,0,0,.18)}
    .button:active{transform:scale(.98)}
    .button.primary{background:var(--grad);color:#fff}
    .button.secondary{border-color:rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.05)}
    .hero-note{font-size:13px;color:rgba(255,255,255,.48)}
    .visual-panel{min-height:390px;border:1px solid rgba(255,255,255,.14);border-radius:32px;background:rgba(255,255,255,.065);padding:28px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .visual-panel:before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:var(--grad);filter:blur(55px);opacity:.38;right:-50px;top:-55px}
    .panel-top{display:flex;justify-content:space-between;align-items:center;position:relative}
    .panel-code{font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.16em}
    .status{font-size:12px;border:1px solid rgba(114,200,198,.5);color:var(--cyan);border-radius:99px;padding:4px 10px}
    .axis{height:145px;border-left:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2);margin:43px 18px 28px;position:relative;background:repeating-linear-gradient(0deg,transparent 0 35px,rgba(255,255,255,.06) 36px 37px),repeating-linear-gradient(90deg,transparent 0 74px,rgba(255,255,255,.05) 75px 76px)}
    .axis:after{content:"";position:absolute;left:8%;right:8%;top:54%;height:3px;background:var(--grad);transform:rotate(-12deg);box-shadow:0 0 18px rgba(217,77,139,.8)}
    .panel-tags{display:flex;gap:8px;flex-wrap:wrap;position:relative}
    .tag{display:inline-flex;border-radius:99px;padding:6px 11px;background:rgba(255,255,255,.09);color:rgba(255,255,255,.77);font-size:12px}
    .metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:26px;position:relative}
    .metric{border-top:1px solid rgba(255,255,255,.2);padding-top:12px}
    .metric strong{display:block;font-size:24px;color:#fff}.metric span{font-size:12px;color:rgba(255,255,255,.52)}
    .section{padding:105px 0}.section-head{max-width:720px;margin-bottom:42px}
    h2{font-size:clamp(30px,4vw,47px);line-height:1.2;letter-spacing:-.05em;margin:12px 0 16px}
    .section-intro{color:var(--muted);font-size:17px;max-width:690px}
    .pain-grid{display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:16px;align-items:stretch}
    .pain-item{padding:28px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;min-height:185px;position:relative}
    .pain-item:first-child{background:var(--ink);color:#fff;transform:translateY(24px)}
    .num{font-size:13px;color:var(--pink);font-weight:800;letter-spacing:.1em}.pain-item h3{font-size:21px;margin:17px 0 8px}.pain-item p{font-size:14px;color:var(--muted);margin:0}.pain-item:first-child p{color:rgba(255,255,255,.62)}
    .split-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:20px}
    .method-card{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:38px;min-height:330px;position:relative;overflow:hidden}
    .method-card:after{content:"";position:absolute;right:-90px;bottom:-120px;width:280px;height:280px;border-radius:50%;border:1px solid rgba(255,255,255,.2);box-shadow:0 0 0 35px rgba(255,255,255,.04),0 0 0 70px rgba(255,255,255,.025)}
    .method-card h3{font-size:28px;max-width:330px;position:relative;z-index:1}.method-card p{color:rgba(255,255,255,.63);font-size:15px;max-width:350px;position:relative;z-index:1}
    .method-label{display:inline-block;background:var(--grad);border-radius:99px;padding:5px 11px;font-size:12px}
    .compare-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:25px}
    .compare-row{display:grid;grid-template-columns:130px 1fr 1fr;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px}.compare-row:last-child{border-bottom:0}
    .compare-row strong{color:var(--violet)}.compare-row span{color:var(--muted)}
    .value-band{background:var(--ink);color:#fff;padding:82px 0}.value-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
    .value-band .section-kicker{color:var(--orange)}.value-band h2{max-width:500px}.value-band p{color:rgba(255,255,255,.62);max-width:570px}
    .value-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.value-stat{border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:24px;background:rgba(255,255,255,.05)}.value-stat b{font-size:36px;display:block;color:var(--cyan)}.value-stat span{font-size:13px;color:rgba(255,255,255,.6)}
    .needs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.need{padding:26px;background:var(--paper-2);border-radius:20px;border-left:4px solid var(--pink)}.need h3{font-size:19px}.need p{font-size:14px;color:var(--muted);margin:0}
    .content-zone{background:#fff}.content-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.article-links,.feature-note{border:1px solid var(--line);border-radius:24px;padding:28px}.article-links a{display:flex;justify-content:space-between;gap:15px;padding:17px 0;border-bottom:1px solid var(--line);font-weight:700}.article-links a:last-child{border:0}.article-links small{display:block;color:var(--muted);font-weight:400;font-size:13px}.feature-note{background:var(--grad);color:#fff}.feature-note p{color:rgba(255,255,255,.8);font-size:15px}.feature-note .button{background:#fff;color:var(--ink);margin-top:20px}
    .faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;text-align:left;background:none;border:0;padding:22px 4px;font-weight:750;display:flex;justify-content:space-between;cursor:pointer;color:var(--text)}.faq-q span{font-size:22px;color:var(--pink);transition:transform .2s}.faq-a{display:none;padding:0 34px 22px 4px;color:var(--muted);font-size:15px}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:30px 0 105px}.cta-box{border-radius:var(--radius-lg);background:var(--ink);color:#fff;padding:52px 58px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}.cta-box:after{content:"";position:absolute;width:330px;height:330px;border-radius:50%;border:1px solid rgba(255,255,255,.13);right:100px;top:-210px}.cta-box h2{max-width:600px;margin-bottom:8px}.cta-box p{color:rgba(255,255,255,.62);max-width:600px;margin:0}.cta-box .button{position:relative;z-index:1;white-space:nowrap}
    footer{background:#111016;color:#fff;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:45px}.footer-brand{font-size:19px;font-weight:800}.footer-copy{color:rgba(255,255,255,.48);font-size:13px;max-width:300px;margin-top:15px}.footer-title{font-size:13px;color:var(--cyan);margin-bottom:15px}.footer-links a{display:block;color:rgba(255,255,255,.62);font-size:14px;margin:8px 0}.footer-links a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:rgba(255,255,255,.38);font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:992px){.hero-grid,.value-grid{gap:35px}.pain-grid{grid-template-columns:1fr 1fr}.pain-item:first-child{grid-column:span 2;transform:none}.split-panel,.content-grid{grid-template-columns:1fr}.faq-wrap{gap:30px}.nav-links{display:none}.menu-toggle{display:block}}
    @media(max-width:768px){.wrap{padding:0 20px}.hero{padding-top:120px;min-height:auto}.hero-grid{grid-template-columns:1fr}.visual-panel{min-height:330px}.section{padding:72px 0}.needs{grid-template-columns:1fr}.value-grid{grid-template-columns:1fr}.cta-box{padding:35px 26px;display:block}.cta-box .button{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
    @media(max-width:576px){h1{font-size:40px}.hero-copy{font-size:16px}.pain-grid{grid-template-columns:1fr}.pain-item:first-child{grid-column:auto}.metrics,.value-stats{grid-template-columns:1fr 1fr}.compare-row{grid-template-columns:1fr;gap:5px}.footer-grid{grid-template-columns:1fr}.brand-text{font-size:13px}.nav{min-height:68px}}

/* roulang page: category2 */
:root{
      --ink:#17151d;--ink-soft:#24212d;--paper:#f4f1ed;--paper-2:#ebe7e2;
      --text:#292631;--muted:#716b78;--line:rgba(41,38,49,.13);
      --violet:#7149d8;--pink:#d94d8b;--orange:#e88950;--cyan:#72c8c6;
      --grad:linear-gradient(120deg,#7149d8 0%,#d94d8b 58%,#e88950 100%);
      --radius-lg:30px;--radius-md:18px;--shadow:0 22px 60px rgba(32,24,43,.13);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}
    a{color:inherit;text-decoration:none;transition:all .22s ease}
    a:hover{text-decoration:underline;text-underline-offset:4px}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    .wrap{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:absolute;top:0;left:0;right:0;z-index:5}
    .nav{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;letter-spacing:-.03em}
    .brand:hover{text-decoration:none}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);position:relative;box-shadow:0 8px 20px rgba(217,77,139,.3)}
    .brand-mark:after{content:"";position:absolute;width:11px;height:11px;border:2px solid #fff;border-radius:50%;right:7px;top:7px}
    .brand-text{max-width:210px;line-height:1.25;font-size:15px}
    .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav-links a{color:rgba(255,255,255,.72);padding:9px 13px;border-radius:10px;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.11);text-decoration:none}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;font-weight:750;border:1px solid transparent;transition:all .22s ease;cursor:pointer}
    .button:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 25px rgba(0,0,0,.18)}
    .button:active{transform:scale(.98)}
    .button:focus,.nav a:focus,.menu-toggle:focus,.faq-q:focus{outline:3px solid rgba(114,200,198,.7);outline-offset:3px}
    .nav-cta{background:#fff;color:var(--ink);padding:10px 17px;min-height:42px}
    .menu-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:10px;padding:8px 12px}
    .hero{background:var(--ink);color:#fff;padding:135px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(113,73,216,.25),transparent 47%,rgba(217,77,139,.17));pointer-events:none}
    .hero:after{content:"";position:absolute;width:600px;height:600px;border:1px solid rgba(255,255,255,.08);border-radius:50%;right:-170px;top:35px;box-shadow:0 0 0 36px rgba(255,255,255,.025),0 0 0 72px rgba(255,255,255,.018)}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;color:var(--cyan);font-weight:800}
    h1{font-size:clamp(40px,6vw,68px);line-height:1.1;letter-spacing:-.055em;margin:16px 0 22px;max-width:780px}
    h2{font-size:clamp(30px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 16px}
    h3{line-height:1.35}
    .hero-copy{font-size:18px;color:rgba(255,255,255,.72);max-width:720px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 22px}
    .primary{background:var(--grad);color:#fff}
    .secondary{border-color:rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.05)}
    .hero-note{font-size:13px;color:rgba(255,255,255,.48)}
    .section{padding:100px 0}
    .section-head{max-width:740px;margin-bottom:40px}
    .section-intro{color:var(--muted);font-size:17px;max-width:700px}
    .route{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .route:before{content:"";position:absolute;left:7%;right:7%;top:29px;border-top:1px dashed rgba(113,73,216,.45)}
    .route-item{position:relative;padding:0 20px 10px 0}
    .route-no{width:58px;height:58px;border-radius:18px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;position:relative;z-index:1;box-shadow:0 8px 20px rgba(23,21,29,.15)}
    .route-item:nth-child(2) .route-no{background:var(--violet)}
    .route-item:nth-child(3) .route-no{background:var(--pink)}
    .route-item:nth-child(4) .route-no{background:var(--orange)}
    .route-item h3{font-size:21px;margin:20px 0 8px}
    .route-item p{font-size:14px;color:var(--muted);margin:0}
    .compare-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .compare-board,.note-card,.related-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px}
    .compare-board h3{margin-top:0;font-size:24px}
    .compare-row{display:grid;grid-template-columns:130px 1fr 1fr;gap:15px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px}
    .compare-row:last-child{border-bottom:0}
    .compare-row strong{color:var(--violet)}
    .compare-row span{color:var(--muted)}
    .note-card{background:var(--grad);color:#fff;position:relative;overflow:hidden}
    .note-card:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(255,255,255,.25);border-radius:50%;right:-100px;bottom:-100px;box-shadow:0 0 0 28px rgba(255,255,255,.06)}
    .note-card h3,.note-card p,.note-card ul{position:relative;z-index:1}
    .note-card h3{font-size:28px;margin-top:0}
    .note-card p,.note-card li{color:rgba(255,255,255,.82);font-size:15px}
    .note-card ul{padding-left:20px}
    .badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
    .badge{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:99px;background:rgba(255,255,255,.13);font-size:12px;color:#fff}
    .badge b{font-size:18px;color:var(--cyan)}
    .related-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:60px;align-items:start}
    .related-list{padding:12px 28px}
    .related-list a{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:21px 0;border-bottom:1px solid var(--line);font-weight:750}
    .related-list a:last-child{border-bottom:0}
    .related-list small{display:block;color:var(--muted);font-weight:400;font-size:13px;margin-top:4px}
    .arrow{color:var(--pink);font-size:22px;flex:none}
    .faq-wrap{display:grid;grid-template-columns:.65fr 1.35fr;gap:70px}
    .faq{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;text-align:left;background:none;border:0;padding:21px 4px;font-weight:750;display:flex;justify-content:space-between;cursor:pointer;color:var(--text)}
    .faq-q span{font-size:22px;color:var(--pink);transition:transform .2s}
    .faq-a{display:none;padding:0 34px 22px 4px;color:var(--muted);font-size:15px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:10px 0 105px}
    .cta-box{border-radius:var(--radius-lg);background:var(--ink);color:#fff;padding:48px 56px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
    .cta-box:after{content:"";position:absolute;width:330px;height:330px;border-radius:50%;border:1px solid rgba(255,255,255,.13);right:90px;top:-20px;box-shadow:0 0 0 32px rgba(255,255,255,.04)}
    .cta-box h2,.cta-box p,.cta-box .hero-actions{position:relative;z-index:1}
    .cta-box p{color:rgba(255,255,255,.65);max-width:600px;margin:0}
    footer{background:var(--ink);color:#fff;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px}
    .footer-brand{font-size:20px;font-weight:800}
    .footer-copy{color:rgba(255,255,255,.55);font-size:14px;max-width:360px}
    .footer-title{font-weight:750;margin-bottom:14px}
    .footer-links{display:grid;gap:8px;color:rgba(255,255,255,.6);font-size:14px}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:rgba(255,255,255,.42);font-size:12px}
    @media(max-width:992px){.nav-links{gap:0}.nav-links a{padding:8px}.route{grid-template-columns:repeat(2,1fr);gap:35px}.route:before{display:none}.related-layout,.faq-wrap{gap:30px}}
    @media(max-width:768px){.wrap{width:min(100% - 32px,620px)}.nav-links,.nav-cta{display:none}.menu-toggle{display:block}.nav.open .nav-links{display:grid;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:var(--ink-soft);border:1px solid rgba(255,255,255,.15);border-radius:16px}.nav.open .nav-links a{padding:12px}.hero{padding:120px 0 62px}h1{font-size:43px}.section{padding:72px 0}.compare-layout,.related-layout,.faq-wrap{grid-template-columns:1fr}.cta-box{padding:35px 28px;display:block}.cta-box .hero-actions{margin-bottom:0}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
    @media(max-width:520px){.route{grid-template-columns:1fr}.compare-board,.note-card,.related-list{padding:23px}.compare-row{grid-template-columns:1fr;gap:4px}.footer-grid{grid-template-columns:1fr}.hero-actions .button{width:100%}}

/* roulang page: category1 */
:root{
  --ink:#17151d;--ink-soft:#24212d;--paper:#f4f1ed;--paper-2:#ebe7e2;
  --text:#292631;--muted:#716b78;--line:rgba(41,38,49,.13);
  --violet:#7149d8;--pink:#d94d8b;--orange:#e88950;--cyan:#72c8c6;
  --grad:linear-gradient(120deg,#7149d8 0%,#d94d8b 58%,#e88950 100%);
  --radius-lg:30px;--radius-md:18px;--shadow:0 22px 60px rgba(32,24,43,.13);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease}
a:hover{text-decoration:underline;text-underline-offset:4px}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(114,200,198,.8);outline-offset:3px}
.wrap{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{background:var(--ink);position:relative;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:22px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;letter-spacing:-.03em;flex:0 0 auto}
.brand:hover{text-decoration:none;color:#fff}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);position:relative;box-shadow:0 8px 20px rgba(217,77,139,.3)}
.brand-mark:after{content:"";position:absolute;width:11px;height:11px;border:2px solid #fff;border-radius:50%;right:7px;top:7px}
.brand-text{max-width:210px;line-height:1.25;font-size:15px}
.nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav-links a{color:rgba(255,255,255,.72);padding:9px 13px;border-radius:10px;font-size:14px;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.11);text-decoration:none}
.nav-links a.active{box-shadow:inset 0 -2px 0 var(--cyan)}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;font-weight:750;border:1px solid transparent;letter-spacing:.01em;transition:all .22s ease}
.button:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 25px rgba(0,0,0,.18)}
.button:active{transform:scale(.98)}
.button[disabled]{cursor:not-allowed;opacity:.45;transform:none;box-shadow:none}
.nav-cta{background:#fff!important;color:var(--ink)!important;font-weight:700!important;padding:10px 17px!important;min-height:42px}
.menu-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:10px;padding:8px 12px;min-height:42px}
.page-hero{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:76px 0 78px}
.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(113,73,216,.22),transparent 48%,rgba(217,77,139,.14));pointer-events:none}
.page-hero:after{content:"";width:370px;height:370px;border:1px solid rgba(255,255,255,.12);border-radius:50%;position:absolute;right:8%;top:-145px;box-shadow:0 0 0 38px rgba(255,255,255,.025),0 0 0 76px rgba(255,255,255,.018)}
.breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:9px;color:rgba(255,255,255,.56);font-size:13px;margin-bottom:22px}
.breadcrumb a:hover{color:#fff}
.hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);gap:48px;align-items:end}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);font-weight:800}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5vw,62px);line-height:1.13;letter-spacing:-.055em;margin:12px 0 20px;max-width:800px}
.hero-copy{font-size:17px;color:rgba(255,255,255,.72);max-width:730px;line-height:1.9;margin-bottom:0}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:25px}
.tag{display:inline-flex;align-items:center;border-radius:99px;padding:6px 11px;background:rgba(255,255,255,.09);color:rgba(255,255,255,.8);font-size:12px;line-height:1.3}
.hero-index{border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-md);padding:22px;background:rgba(255,255,255,.05);backdrop-filter:blur(4px)}
.hero-index small{display:block;color:var(--cyan);letter-spacing:.12em;font-weight:800}
.hero-index strong{display:block;font-size:42px;line-height:1;margin:10px 0 12px;letter-spacing:-.06em}
.hero-index p{margin:0;color:rgba(255,255,255,.62);font-size:14px;line-height:1.7}
.section{padding:96px 0}
.section.alt{background:var(--paper-2)}
.section-head{max-width:760px;margin-bottom:42px}
.section-head h2{font-size:clamp(29px,3.5vw,43px);line-height:1.2;letter-spacing:-.045em;margin:10px 0 14px}
.section-intro{color:var(--muted);font-size:16px;max-width:700px;margin-bottom:0}
.index-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:26px;align-items:stretch}
.index-side{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:34px;position:relative;overflow:hidden}
.index-side:after{content:"";position:absolute;right:-85px;bottom:-105px;width:270px;height:270px;border:1px solid rgba(255,255,255,.2);border-radius:50%;box-shadow:0 0 0 32px rgba(255,255,255,.04)}
.index-side h2{position:relative;z-index:1;font-size:31px;line-height:1.25;letter-spacing:-.04em;margin:15px 0}
.index-side p{position:relative;z-index:1;color:rgba(255,255,255,.64);font-size:15px}
.mini-rule{position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.16);margin-top:26px;padding-top:19px;font-size:13px;color:rgba(255,255,255,.7)}
.index-list{display:grid;gap:13px}
.index-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:22px 23px;display:grid;grid-template-columns:54px 1fr auto;gap:16px;align-items:center;box-shadow:0 8px 20px rgba(32,24,43,.035)}
.index-item:hover{border-color:rgba(113,73,216,.42);transform:translateX(4px);box-shadow:var(--shadow);text-decoration:none}
.index-num{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(135deg,rgba(113,73,216,.14),rgba(217,77,139,.12));color:var(--violet);font-weight:800;font-size:13px}
.index-item h3{font-size:18px;margin:0 0 2px;line-height:1.45}
.index-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.arrow{font-size:23px;color:var(--pink);line-height:1}
.compare-shell{display:grid;grid-template-columns:1.15fr .85fr;gap:25px;align-items:stretch}
.compare-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px}
.compare-panel h3{font-size:25px;line-height:1.35;margin:0 0 9px;letter-spacing:-.035em}
.compare-panel>p{font-size:15px;color:var(--muted);margin-bottom:18px}
.compare-row{display:grid;grid-template-columns:132px 1fr 1fr;gap:15px;padding:17px 0;border-top:1px solid var(--line);font-size:14px;align-items:start}
.compare-row strong{color:var(--violet)}
.compare-row span{color:var(--muted);line-height:1.7}
.notice-card{background:var(--grad);color:#fff;border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between}
.notice-card h3{font-size:28px;line-height:1.28;letter-spacing:-.045em;margin:13px 0}
.notice-card p{font-size:15px;color:rgba(255,255,255,.84)}
.notice-points{padding:0;margin:22px 0;list-style:none}
.notice-points li{padding:10px 0;border-top:1px solid rgba(255,255,255,.23);font-size:14px}
.notice-points li:before{content:"✓";font-weight:800;margin-right:9px}
.notice-card .button{background:#fff;color:var(--ink);align-self:flex-start}
.filter-zone{background:var(--ink);border-radius:var(--radius-lg);padding:38px;color:#fff;overflow:hidden;position:relative}
.filter-zone:before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(113,73,216,.28),transparent 60%)}
.filter-grid{position:relative;z-index:1;display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
.filter-zone h2{font-size:35px;line-height:1.23;letter-spacing:-.045em;margin:12px 0}
.filter-zone p{color:rgba(255,255,255,.65);font-size:15px;margin-bottom:0}
.filter-board{display:grid;gap:11px}
.filter-line{display:grid;grid-template-columns:115px 1fr;gap:13px;align-items:center;padding:13px 15px;border-radius:14px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.055)}
.filter-line strong{font-size:13px;color:var(--cyan)}
.filter-options{display:flex;gap:7px;flex-wrap:wrap}
.filter-options span{font-size:12px;color:rgba(255,255,255,.84);padding:4px 9px;background:rgba(255,255,255,.1);border-radius:999px}
.filter-options span.selected{background:#fff;color:var(--ink);font-weight:750}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step-card{position:relative;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;padding:28px;min-height:215px}
.step-card:nth-child(2){transform:translateY(23px);background:#fbf9ff}
.step-card:nth-child(3){background:#fff8f4}
.step-no{font-size:13px;letter-spacing:.12em;color:var(--pink);font-weight:800}
.step-card h3{font-size:21px;line-height:1.35;margin:17px 0 9px}
.step-card p{font-size:14px;color:var(--muted);margin-bottom:0}
.scope-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.scope-card{padding:30px;border-radius:var(--radius-lg);border:1px solid var(--line);background:#fff}
.scope-card.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.scope-card h3{font-size:24px;line-height:1.35;margin:12px 0}
.scope-card p{font-size:15px;color:var(--muted);margin-bottom:16px}
.scope-card.dark p{color:rgba(255,255,255,.64)}
.scope-list{list-style:none;padding:0;margin:0}
.scope-list li{padding:10px 0;border-top:1px solid var(--line);font-size:14px}
.scope-card.dark .scope-list li{border-color:rgba(255,255,255,.15)}
.scope-list li:before{content:"·";color:var(--pink);font-size:23px;vertical-align:-1px;margin-right:8px}
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:66px}
.faq-aside{padding-top:7px}
.faq-aside h2{font-size:40px;line-height:1.2;letter-spacing:-.05em;margin:10px 0 15px}
.faq-aside p{color:var(--muted);font-size:15px}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:21px 3px;font-weight:750;display:flex;justify-content:space-between;align-items:center;gap:18px;color:var(--text);font-size:16px;line-height:1.55}
.faq-q span{font-size:23px;color:var(--pink);font-weight:400;transition:transform .2s}
.faq-a{display:none;padding:0 38px 22px 3px;color:var(--muted);font-size:15px;line-height:1.85}
.faq-item.is-active .faq-a{display:block}
.faq-item.is-active .faq-q span{transform:rotate(45deg)}
.cta{padding:28px 0 100px}
.cta-box{border-radius:var(--radius-lg);background:var(--ink);color:#fff;padding:48px 54px;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:30px;position:relative;overflow:hidden}
.cta-box:after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;border:1px solid rgba(255,255,255,.15);right:90px;top:-110px;box-shadow:0 0 0 34px rgba(255,255,255,.035),0 0 0 68px rgba(255,255,255,.02)}
.cta-box h2{position:relative;z-index:1;font-size:36px;line-height:1.22;letter-spacing:-.045em;margin:10px 0}
.cta-box p{position:relative;z-index:1;color:rgba(255,255,255,.65);font-size:15px;margin:0}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
.button.primary{background:var(--grad);color:#fff}
.button.secondary{border-color:rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.05)}
footer{background:#100f15;color:#fff;padding:58px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:48px;padding-bottom:45px}
.footer-brand{font-size:19px;font-weight:800;letter-spacing:-.035em;margin-bottom:12px}
.footer-copy{max-width:380px;font-size:14px;color:rgba(255,255,255,.55);margin:0}
.footer-title{font-size:13px;color:var(--cyan);letter-spacing:.1em;font-weight:800;margin-bottom:12px}
.footer-links{display:grid;gap:8px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);width:max-content;max-width:100%}
.footer-links a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:rgba(255,255,255,.45);font-size:12px;display:flex;justify-content:space-between;gap:16px}
@media (max-width:1024px){
  .wrap{width:min(100% - 40px,1180px)}
  .nav-links a{padding:8px 9px}
  .hero-layout,.filter-grid{gap:30px}
  .faq-wrap{gap:40px}
  .compare-row{grid-template-columns:110px 1fr 1fr}
}
@media (max-width:768px){
  .wrap{width:min(100% - 32px,1180px)}
  .nav{min-height:68px;gap:12px;position:relative}
  .brand-text{font-size:13px;max-width:170px}
  .nav-cta{display:none}
  .menu-toggle{display:block;margin-left:auto}
  .nav-links{display:none;position:absolute;top:61px;left:0;right:0;margin:0;padding:10px;background:var(--ink-soft);border:1px solid rgba(255,255,255,.12);border-radius:14px;box-shadow:var(--shadow)}
  .nav-links.open{display:grid}
  .nav-links a{padding:11px 12px}
  .page-hero{padding:55px 0 58px}
  .hero-layout,.index-layout,.compare-shell,.filter-grid,.scope-grid,.faq-wrap,.cta-box{grid-template-columns:1fr}
  .hero-index{max-width:360px}
  .section{padding:70px 0}
  .steps-grid{grid-template-columns:1fr}
  .step-card:nth-child(2){transform:none}
  .faq-aside{padding-top:0}
  .cta-box{padding:38px 31px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-grid>div:first-child{grid-column:1/-1}
}
@media (max-width:576px){
  body{font-size:15px}
  .wrap{width:min(100% - 28px,1180px)}
  h1{font-size:37px}
  .page-hero{padding-top:44px}
  .section{padding:56px 0}
  .section-head{margin-bottom:29px}
  .section-head h2,.faq-aside h2,.cta-box h2{font-size:30px}
  .index-side,.compare-panel,.notice-card,.filter-zone,.scope-card{padding:24px}
  .index-item{grid-template-columns:42px 1fr;gap:13px;padding:18px}
  .index-item .arrow{display:none}
  .compare-row{grid-template-columns:1fr;gap:5px;padding:15px 0}
  .compare-row strong{margin-bottom:2px}
  .filter-line{grid-template-columns:1fr;gap:6px}
  .cta-box{padding:31px 24px}
  .button{width:100%;min-height:48px}
  .cta-actions{display:grid}
  .footer-grid{grid-template-columns:1fr;gap:27px}
  .footer-grid>div:first-child{grid-column:auto}
  .copyright{display:grid;gap:5px}
}