/* roulang page: index */
:root{
  --ink:#241c2e;
  --muted:#736c7c;
  --purple:#542b70;
  --purple-deep:#32183f;
  --purple-soft:#eee7f5;
  --mint:#b9f1d1;
  --mint-deep:#247552;
  --lime:#d8f58c;
  --orange:#e48a4b;
  --cream:#fbfaf7;
  --paper:#ffffff;
  --line:#e8e2e9;
  --dark:#1e1427;
  --radius:18px;
  --shadow:0 18px 45px rgba(54,29,69,.10);
  --shadow-sm:0 8px 24px rgba(54,29,69,.07);
  --ease:all .25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,250,247,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,226,233,.9)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:245px}
.logo-mark{width:38px;height:38px;background:var(--purple);border-radius:12px;position:relative;box-shadow:inset 0 -5px 0 rgba(0,0,0,.15)}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:4px}
.logo-mark:before{width:20px;height:15px;left:9px;top:8px}
.logo-mark:after{width:4px;height:4px;background:var(--lime);border:0;left:12px;bottom:7px;box-shadow:8px 0 0 var(--lime),16px 0 0 var(--lime)}
.brand strong{font-size:16px;line-height:1.25;display:block}
.brand small{font-size:11px;color:var(--muted);display:block;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}
.nav-links a{font-size:14px;padding:9px 12px;border-radius:10px;color:#51495a;transition:var(--ease);white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple)}
.nav-actions{display:flex;align-items:center;gap:9px}
.nav-download{font-size:13px;color:var(--purple);font-weight:700;padding:10px 4px}
.menu-toggle{display:none;border:0;background:transparent;color:var(--purple);font-size:25px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:focus,.nav-links a:focus{outline:3px solid rgba(84,43,112,.22);outline-offset:3px}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 8px 18px rgba(84,43,112,.2)}
.btn-primary:hover{background:#43215d;box-shadow:0 12px 25px rgba(84,43,112,.26)}
.btn-secondary{background:#fff;color:var(--purple);border-color:#d8cde0}
.btn-secondary:hover{border-color:var(--purple);background:var(--purple-soft)}
.btn-light{background:var(--mint);color:#183f2c}
.btn-light:hover{background:#a3e7c1}
main{overflow:hidden}
.section{padding:90px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
.eyebrow{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
.section h2{font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.04em}
.section-lead{max-width:610px;color:var(--muted);font-size:15px}
.hero{padding:78px 0 64px;background:linear-gradient(135deg,#f5f0f8 0%,#fbfaf7 58%,#eef8f2 100%);position:relative}
.hero:before{content:"";position:absolute;right:-80px;top:-150px;width:430px;height:430px;border:1px solid rgba(84,43,112,.13);border-radius:48%;transform:rotate(26deg)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:64px;position:relative}
.hero-copy{position:relative;z-index:1}
.hero-brand{color:var(--purple);font-size:15px;font-weight:800;margin-bottom:15px}
.hero h1{font-size:clamp(38px,5.3vw,68px);line-height:1.12;letter-spacing:-.06em;max-width:690px}
.hero h1 em{font-style:normal;color:var(--purple)}
.hero-copy>p{color:var(--muted);font-size:17px;max-width:620px;margin:23px 0 28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:25px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border-radius:99px;background:#fff;border:1px solid var(--line);font-size:12px;color:#5d5366}
.tag i{width:7px;height:7px;border-radius:50%;background:var(--mint-deep);display:inline-block}
.simulator-stage{min-height:420px;position:relative;display:flex;align-items:center;justify-content:center}
.sim-window{width:min(440px,100%);background:#fff;border:1px solid #d9d0df;border-radius:22px;box-shadow:var(--shadow);overflow:hidden;transform:rotate(2deg)}
.window-bar{height:45px;background:#f0ebf2;display:flex;align-items:center;padding:0 16px;gap:7px}
.window-bar span{width:9px;height:9px;border-radius:50%;background:#d2b6d9}
.window-bar span:nth-child(2){background:#e3c182}.window-bar span:nth-child(3){background:#a8d9b7}
.window-title{margin-left:auto;font-size:11px;color:#817486}
.screen{padding:20px;background:#faf8fb;display:grid;grid-template-columns:1.35fr .65fr;gap:14px}
.game-panel{height:236px;border-radius:15px;background:linear-gradient(145deg,#4b2664,#9d5a9d 65%,#e7a66f);position:relative;overflow:hidden;padding:18px;color:#fff}
.game-panel:after{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(255,255,255,.27);border-radius:50%;right:-55px;top:18px;box-shadow:0 0 0 22px rgba(255,255,255,.06),0 0 0 44px rgba(255,255,255,.04)}
.panel-label{font-size:11px;opacity:.8}.panel-name{font-size:25px;font-weight:800;margin-top:8px;position:relative;z-index:1}
.panel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:38px;position:relative;z-index:1}
.panel-grid b{height:38px;border-radius:9px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:15px}
.control-panel{display:flex;flex-direction:column;gap:10px}
.control-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px}
.control-box small{color:var(--muted);font-size:10px;display:block}.control-box strong{font-size:14px;color:var(--purple)}
.control-button{height:49px;border-radius:12px;background:var(--mint);color:#22563d;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.hero-note{position:absolute;right:5px;bottom:7px;background:var(--lime);padding:9px 13px;border-radius:12px;font-size:12px;font-weight:800;transform:rotate(-5deg);box-shadow:var(--shadow-sm)}
.quickbar{padding:16px 0;background:#fff;border-bottom:1px solid var(--line)}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.quick-item{display:flex;align-items:center;gap:12px;padding:15px 17px;border-radius:14px;transition:var(--ease)}
.quick-item:hover{background:var(--purple-soft);transform:translateY(-2px)}
.quick-icon{width:34px;height:34px;border-radius:10px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-weight:800}
.quick-item strong{font-size:14px;display:block}.quick-item small{display:block;color:var(--muted);font-size:11px}
.process{background:#fff}
.process-line{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.process-line:before{content:"";position:absolute;left:12%;right:12%;top:27px;border-top:1px dashed #cbbbd2}
.process-step{position:relative;padding:0 28px;text-align:center}
.step-number{width:55px;height:55px;border-radius:50%;margin:0 auto 20px;background:var(--purple);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;border:7px solid #f2ecf5;position:relative}
.process-step:nth-child(2) .step-number{background:var(--mint-deep)}.process-step:nth-child(3) .step-number{background:var(--orange)}
.process-step h3{font-size:18px;margin-bottom:8px}.process-step p{font-size:14px;color:var(--muted)}
.interface{background:#f1edf4}
.interface-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.interface-art{background:var(--dark);border-radius:24px;padding:18px;box-shadow:var(--shadow);min-height:330px;position:relative}
.art-top{height:30px;display:flex;gap:6px;align-items:center}.art-top i{width:8px;height:8px;border-radius:50%;background:#84618f}.art-top b{font-size:11px;color:#c9b8cf;margin-left:auto}
.art-main{display:grid;grid-template-columns:1fr 150px;gap:14px;margin-top:12px}
.art-large{height:245px;border-radius:16px;background:linear-gradient(145deg,#6f3a7d,#312049);position:relative;overflow:hidden}
.art-large:before{content:"";position:absolute;inset:26px;border:1px solid rgba(216,245,140,.55);border-radius:50%;transform:scaleY(.55)}
.art-large:after{content:"PG";position:absolute;inset:0;display:grid;place-items:center;color:#d8f58c;font-size:64px;font-weight:900;opacity:.85}
.art-side{display:grid;gap:10px}.art-chip{border:1px solid #66516e;border-radius:12px;padding:12px;color:#d7cadd;font-size:11px}.art-chip strong{display:block;color:#fff;font-size:15px;margin-top:3px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feature-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:var(--ease)}
.feature-card:hover{border-color:#bea7c8;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.feature-card:nth-child(2),.feature-card:nth-child(5){background:#f5fbf7}
.feature-no{color:var(--orange);font-size:12px;font-weight:800}.feature-card h3{font-size:18px;margin:12px 0 7px}.feature-card p{color:var(--muted);font-size:13px}
.topic-section{background:#fff}
.topic-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.topic-card{min-height:154px;padding:19px;border-radius:16px;background:#faf8fb;border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;transition:var(--ease)}
.topic-card:hover{background:var(--purple);color:#fff;border-color:var(--purple);transform:translateY(-3px)}
.topic-card b{font-size:13px;color:var(--purple)}.topic-card:hover b{color:var(--lime)}
.topic-card span{font-size:13px;line-height:1.5}.topic-card small{color:var(--muted)}.topic-card:hover small{color:#e6dced}
.download{background:#e9f6ed}
.download-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:55px;align-items:center}
.app-device{width:190px;height:340px;background:var(--dark);border:7px solid #43324b;border-radius:31px;margin:auto;padding:10px;box-shadow:var(--shadow);position:relative}
.app-device:before{content:"";display:block;width:62px;height:5px;background:#68536e;border-radius:9px;margin:0 auto 12px}
.app-screen{height:290px;border-radius:19px;background:linear-gradient(160deg,#6a367d,#f0a46a);padding:15px;color:#fff}.app-screen strong{font-size:23px;display:block;margin-top:12px}.app-screen .app-orbit{height:105px;width:105px;border:1px solid rgba(255,255,255,.6);border-radius:50%;margin:32px auto 20px;display:grid;place-items:center;color:var(--lime);font-weight:800}
.download-copy h2{font-size:38px;line-height:1.2;margin-bottom:14px}.download-copy p{color:var(--muted);font-size:15px;max-width:590px}
.download-info{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:25px 0}.info-row{background:#fff;padding:14px 16px;border-radius:12px;border:1px solid #d8e9dc}.info-row small{color:var(--muted);display:block;font-size:11px}.info-row strong{font-size:14px}
.qr{display:inline-flex;align-items:center;gap:12px;color:var(--mint-deep);font-size:13px;font-weight:700}.qr-box{width:54px;height:54px;border:5px dotted var(--mint-deep);border-radius:7px;background:#fff}
.compat{background:#fbfaf7}
.compat-table{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.compat-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;padding:16px 20px;border-bottom:1px solid var(--line);font-size:13px;gap:15px}
.compat-row:last-child{border-bottom:0}.compat-row:first-child{background:var(--purple);color:#fff;font-weight:800}.compat-row:not(:first-child) strong{color:var(--purple)}.compat-row span{color:var(--muted)}.compat-row:first-child span{color:#fff}
.timeline{background:#f3f0f6}.timeline-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.timeline-item{display:grid;grid-template-columns:85px 1fr;gap:18px;padding:20px;background:#fff;border-radius:16px;border:1px solid var(--line)}.timeline-date{color:var(--orange);font-weight:800;font-size:13px}.timeline-item h3{font-size:16px}.timeline-item p{font-size:13px;color:var(--muted);margin-top:5px}
.instruction-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.instruction-card{border-radius:18px;padding:28px;background:var(--purple);color:#fff;min-height:220px}.instruction-card:nth-child(2){background:#f4eee2;color:var(--ink)}.instruction-card h3{font-size:23px;margin:15px 0 9px}.instruction-card p{font-size:14px;opacity:.8}.text-link{display:inline-flex;margin-top:20px;color:var(--lime);font-weight:800;font-size:13px}.instruction-card:nth-child(2) .text-link{color:var(--purple)}
.news-section{background:#fff}.news-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:30px}.news-feature{padding:30px;border-radius:20px;background:var(--dark);color:#fff;min-height:285px;display:flex;flex-direction:column;justify-content:end}.news-feature .tag{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff;width:max-content}.news-feature h3{font-size:25px;line-height:1.35;margin:18px 0 8px}.news-feature p{font-size:13px;color:#cbbfd0}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:86px 1fr auto;gap:17px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line)}.news-date{font-size:12px;color:var(--orange);font-weight:800}.news-item h3{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-item p{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-meta{font-size:11px;color:var(--purple);background:var(--purple-soft);padding:4px 8px;border-radius:99px}.empty-state{padding:36px;text-align:center;color:var(--muted);border:1px dashed #cdbed3;border-radius:15px}
.index-strip{padding:70px 0}.index-strip h2{font-size:25px;margin-bottom:19px}.index-tags{display:flex;gap:10px;flex-wrap:wrap}.index-tags a{padding:10px 16px;background:#fff;border:1px solid var(--line);border-radius:99px;color:var(--purple);font-size:13px;transition:var(--ease)}.index-tags a:hover{background:var(--purple);color:#fff}
.faq{background:#f2edf5}.faq-list{max-width:860px;margin:auto}.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:10px;overflow:hidden}.faq-item summary{list-style:none;padding:18px 22px;font-weight:800;cursor:pointer;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:22px;color:var(--purple);font-size:22px;font-weight:400;top:13px}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 22px 19px;color:var(--muted);font-size:14px}
.notice{padding:18px 22px;background:#fff8ed;border:1px solid #f0ddbd;border-radius:14px;display:flex;gap:13px;align-items:flex-start;color:#705534;font-size:13px}.notice b{color:var(--orange);font-size:19px;line-height:1}
.final-cta{padding:70px 0;background:var(--purple-deep);color:#fff}.cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:clamp(27px,4vw,42px);line-height:1.2}.cta-box p{color:#d9cde0;margin-top:8px;font-size:14px}.cta-actions{display:flex;gap:10px;flex-shrink:0}.cta-actions .btn-secondary{background:transparent;color:#fff;border-color:#8e709c}.site-footer{background:#1a1121;color:#e9dfeb;padding:54px 0 24px}.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:36px;padding-bottom:42px}.footer-brand p{font-size:13px;color:#aa9bac;max-width:290px;margin-top:16px}.footer-title{font-size:13px;color:#fff;font-weight:800;margin-bottom:14px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#aa9bac;transition:var(--ease)}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #392b40;padding-top:20px;color:#8e7e92;font-size:12px;display:flex;justify-content:space-between;gap:15px}.footer-bottom a{color:#bca9c3}
@media(max-width:1024px){.nav-links a{padding:8px 7px;font-size:13px}.brand{min-width:215px}.hero-grid{gap:35px}.topic-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.container{width:min(100% - 28px,620px)}.navbar{height:68px}.brand{min-width:0;flex:1}.brand strong{font-size:14px}.brand small,.nav-actions{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);border-bottom:1px solid var(--line);padding:12px 14px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 14px}.hero{padding:55px 0 48px}.hero-grid,.interface-grid,.download-grid,.news-layout{grid-template-columns:1fr}.hero h1{font-size:41px}.simulator-stage{min-height:350px;margin-top:10px}.section{padding:62px 0}.section-head{display:block;margin-bottom:24px}.section-lead{margin-top:12px}.quick-grid{grid-template-columns:repeat(2,1fr)}.process-line{grid-template-columns:1fr;gap:28px}.process-line:before{left:50%;top:27px;bottom:27px;right:auto;height:auto;border-top:0;border-left:1px dashed #cbbbd2}.process-step{display:grid;grid-template-columns:60px 1fr;text-align:left;gap:16px;padding:0}.step-number{margin:0;grid-row:span 2}.process-step p{font-size:13px}.feature-grid{grid-template-columns:repeat(2,1fr)}.topic-grid{grid-template-columns:repeat(2,1fr)}.download-grid{gap:30px}.download-copy h2{font-size:31px}.instruction-grid,.timeline-grid{grid-template-columns:1fr}.compat-table{overflow-x:auto}.compat-row{min-width:610px}.cta-box{display:block}.cta-actions{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){.hero h1{font-size:35px}.hero-copy>p{font-size:15px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn{width:100%}.sim-window{transform:none}.screen{grid-template-columns:1fr}.control-panel{display:grid;grid-template-columns:1fr 1fr}.control-button{grid-column:1/-1}.feature-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr 1fr;gap:9px}.topic-card{min-height:140px;padding:15px}.download-info{grid-template-columns:1fr}.news-item{grid-template-columns:65px 1fr}.news-meta{display:none}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}.cta-actions{display:grid;grid-template-columns:1fr}.app-device{width:170px;height:310px}.app-screen{height:260px}}

/* roulang page: article */
:root{
  --ink:#241c2e;
  --muted:#736c7c;
  --purple:#542b70;
  --purple-deep:#32183f;
  --purple-soft:#eee7f5;
  --mint:#b9f1d1;
  --mint-deep:#247552;
  --lime:#d8f58c;
  --orange:#e48a4b;
  --cream:#fbfaf7;
  --paper:#ffffff;
  --line:#e8e2e9;
  --dark:#1e1427;
  --radius:18px;
  --shadow:0 18px 45px rgba(54,29,69,.10);
  --shadow-sm:0 8px 24px rgba(54,29,69,.07);
  --ease:all .25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,250,247,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,226,233,.9)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:245px}
.logo-mark{width:38px;height:38px;background:var(--purple);border-radius:12px;position:relative;box-shadow:inset 0 -5px 0 rgba(0,0,0,.15);flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:4px}
.logo-mark:before{width:20px;height:15px;left:9px;top:8px}
.logo-mark:after{width:4px;height:4px;background:var(--lime);border:0;left:12px;bottom:7px;box-shadow:8px 0 0 var(--lime),16px 0 0 var(--lime)}
.brand strong{font-size:16px;line-height:1.25;display:block}
.brand small{font-size:11px;color:var(--muted);display:block;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}
.nav-links a{font-size:14px;padding:9px 12px;border-radius:10px;color:#51495a;transition:var(--ease);white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple)}
.nav-actions{display:flex;align-items:center;gap:9px}
.nav-download{font-size:13px;color:var(--purple);font-weight:700;padding:10px 4px;white-space:nowrap}
.menu-toggle{display:none;border:0;background:transparent;color:var(--purple);font-size:25px;padding:5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus,.nav-links a:focus,.footer-links a:focus{outline:3px solid rgba(84,43,112,.22);outline-offset:3px}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 8px 18px rgba(84,43,112,.20)}
.btn-primary:hover{background:#43215d;box-shadow:0 12px 25px rgba(84,43,112,.26)}
.btn-secondary{background:#fff;color:var(--purple);border-color:#d8cde0}
.btn-secondary:hover{border-color:var(--purple);background:var(--purple-soft)}
.btn-light{background:var(--mint);color:#183f2c}
.btn-light:hover{background:#a3e7c1}
main{overflow:hidden}
.article-hero{padding:46px 0 40px;background:linear-gradient(135deg,#f2ecf6 0%,#fbfaf7 62%,#edf8f1 100%);border-bottom:1px solid var(--line);position:relative}
.article-hero:after{content:"";position:absolute;width:310px;height:310px;border:1px solid rgba(84,43,112,.12);border-radius:42% 58% 56% 44%;right:-65px;top:-155px;transform:rotate(24deg)}
.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--muted);font-size:13px;position:relative;z-index:1}
.breadcrumb a{transition:var(--ease)}
.breadcrumb a:hover{color:var(--purple)}
.breadcrumb span{color:#aaa0ad}
.article-heading{position:relative;z-index:1;max-width:900px;padding-top:23px}
.article-category{display:inline-flex;align-items:center;gap:8px;padding:6px 11px;border:1px solid #dacce4;background:#fff;border-radius:999px;color:var(--purple);font-size:12px;font-weight:800}
.article-category:before{content:"";width:7px;height:7px;background:var(--mint-deep);border-radius:50%}
.article-heading h1{font-size:clamp(32px,5vw,56px);line-height:1.18;letter-spacing:-.045em;margin:16px 0 16px}
.article-summary{max-width:820px;color:#655c6d;font-size:16px;margin:0}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-top:20px}
.article-meta b{font-weight:700;color:#5e5366}
.article-layout{display:grid;grid-template-columns:220px minmax(0,820px);justify-content:center;gap:42px;padding:64px 0 84px}
.article-aside{position:relative}
.reading-panel{position:sticky;top:105px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm)}
.reading-panel h2{font-size:15px;margin:0 0 12px}
.reading-panel p{font-size:13px;line-height:1.65;color:var(--muted);margin:0 0 16px}
.reading-links{display:grid;gap:4px}
.reading-links a{padding:8px 9px;border-radius:9px;color:#5e5366;font-size:13px;transition:var(--ease)}
.reading-links a:hover{background:var(--purple-soft);color:var(--purple)}
.reading-mark{display:flex;align-items:center;gap:8px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--mint-deep);font-weight:800}
.reading-mark i{width:8px;height:8px;border-radius:50%;background:var(--mint-deep)}
.article-content{min-width:0;background:var(--paper);border:1px solid var(--line);padding:clamp(24px,5vw,58px);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.article-content>*:first-child{margin-top:0}
.article-content h2{font-size:clamp(23px,3vw,30px);letter-spacing:-.03em;line-height:1.35;margin:2.2em 0 .7em;padding-bottom:12px;border-bottom:1px solid var(--line)}
.article-content h3{font-size:clamp(18px,2.3vw,23px);line-height:1.45;margin:1.8em 0 .65em}
.article-content p{color:#433b4b;font-size:16px;margin:0 0 1.2em}
.article-content ul,.article-content ol{padding-left:1.45em;margin:0 0 1.35em;color:#433b4b}
.article-content li{padding-left:.25em;margin:.45em 0}
.article-content blockquote{margin:1.8em 0;padding:18px 20px;border-left:4px solid var(--mint-deep);border-radius:0 13px 13px 0;background:#f2faf5;color:#315644}
.article-content img{margin:1.7em auto;border-radius:14px;border:1px solid var(--line)}
.article-content table{width:100%;margin:1.7em 0;border-collapse:collapse;display:block;overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.article-content th,.article-content td{padding:12px 14px;min-width:120px;border-bottom:1px solid var(--line);text-align:left;white-space:normal}
.article-content th{background:#f7f3f9;color:var(--purple)}
.article-content code{padding:2px 6px;border-radius:5px;background:#f2edf5;color:var(--purple);font-size:.9em}
.article-content pre{overflow:auto;padding:16px;border-radius:12px;background:var(--dark);color:#f4eefa}
.article-empty{text-align:center;padding:42px 16px}
.article-empty h2{font-size:28px;margin:0 0 10px;border:0;padding:0}
.article-empty p{color:var(--muted);margin-bottom:22px}
.article-bottom{background:#f0ebf4;border-top:1px solid #e3d9e9;border-bottom:1px solid #e3d9e9}
.article-bottom-inner{padding:58px 0;display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px}
.article-bottom h2{font-size:30px;letter-spacing:-.04em;margin:0 0 9px}
.article-bottom p{margin:0;color:var(--muted);font-size:15px;max-width:590px}
.article-bottom-actions{display:flex;gap:11px;flex-wrap:wrap;justify-content:flex-end}
.related-section{padding:76px 0}
.section-kicker{font-size:12px;letter-spacing:.13em;font-weight:800;color:var(--orange);margin-bottom:10px}
.section-title{font-size:clamp(28px,4vw,40px);line-height:1.22;letter-spacing:-.04em;margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.related-card{background:#fff;border:1px solid var(--line);padding:23px;border-radius:16px;transition:var(--ease);min-height:195px;display:flex;flex-direction:column}
.related-card:hover{border-color:#c5b0d0;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.related-card .tag{align-self:flex-start;padding:4px 9px;font-size:11px;background:#faf8fb}
.related-card h3{font-size:18px;line-height:1.45;margin:14px 0 9px}
.related-card p{font-size:13px;color:var(--muted);margin:0 0 15px}
.text-link{margin-top:auto;color:var(--purple);font-size:13px;font-weight:800;display:inline-flex;align-items:center;gap:6px}
.text-link:after{content:"→";transition:var(--ease)}
.text-link:hover:after{transform:translateX(4px)}
.notice-strip{padding:0 0 76px}
.notice-box{display:flex;gap:15px;align-items:flex-start;padding:20px 23px;background:#f0f9f4;border:1px solid #cfeadc;border-radius:16px}
.notice-icon{width:32px;height:32px;flex:none;border-radius:10px;background:var(--mint);color:#20563c;display:grid;place-items:center;font-weight:900}
.notice-box h2{font-size:15px;margin:0 0 4px}
.notice-box p{font-size:13px;color:#4d6858;margin:0}
.site-footer{background:var(--dark);color:#eee7f1;padding:62px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.55fr repeat(3,1fr);gap:36px}
.site-footer .brand{min-width:0;color:#fff}
.site-footer .brand small{color:#bfb2c7}
.site-footer .logo-mark{background:#734993}
.footer-brand p{color:#bfb2c7;font-size:13px;max-width:320px;margin:18px 0 0}
.footer-title{font-size:14px;font-weight:800;margin:5px 0 15px;color:#fff}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#c6baca;font-size:13px;transition:var(--ease)}
.footer-links a:hover{color:var(--mint);transform:translateX(3px)}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#afa0b8;font-size:12px}
.footer-bottom a{color:var(--mint)}
@media(max-width:1024px){
  .navbar{gap:15px}
  .brand{min-width:220px}
  .nav-links a{padding:8px 8px;font-size:13px}
  .article-layout{grid-template-columns:180px minmax(0,760px);gap:24px}
  .footer-grid{grid-template-columns:1.4fr repeat(3,1fr);gap:20px}
}
@media(max-width:768px){
  .container{width:min(100% - 30px,1180px)}
  .navbar{height:70px;gap:10px;position:relative}
  .brand{min-width:0;flex:1}
  .brand strong{font-size:14px}
  .brand small{font-size:10px}
  .menu-toggle{display:block}
  .nav-actions{display:none}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;padding:12px;background:rgba(255,255,255,.98);border:1px solid var(--line);border-radius:0 0 15px 15px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;font-size:14px}
  .article-hero{padding:32px 0 30px}
  .article-heading h1{font-size:34px}
  .article-summary{font-size:15px}
  .article-layout{display:block;padding:34px 0 58px}
  .article-aside{margin-bottom:18px}
  .reading-panel{position:static;padding:15px}
  .reading-panel p,.reading-mark{display:none}
  .reading-links{display:flex;overflow:auto;white-space:nowrap;padding-bottom:2px}
  .reading-links a{background:#faf8fb}
  .article-content{padding:27px 22px}
  .article-bottom-inner{padding:42px 0;grid-template-columns:1fr}
  .article-bottom-actions{justify-content:flex-start}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
  .container{width:min(100% - 24px,1180px)}
  .logo-mark{width:34px;height:34px;border-radius:10px}
  .logo-mark:before{left:7px;top:7px}
  .logo-mark:after{left:10px;bottom:6px}
  .article-heading h1{font-size:30px}
  .article-meta{gap:8px 14px}
  .article-content{padding:23px 17px;border-radius:14px}
  .article-content p{font-size:15px}
  .article-content h2{font-size:23px}
  .article-bottom h2{font-size:27px}
  .article-bottom-actions .btn{width:100%}
  .notice-box{padding:17px}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .footer-bottom{margin-top:32px}
}

/* roulang page: category1 */
:root{
  --ink:#241c2e;
  --muted:#736c7c;
  --purple:#542b70;
  --purple-deep:#32183f;
  --purple-soft:#eee7f5;
  --mint:#b9f1d1;
  --mint-deep:#247552;
  --lime:#d8f58c;
  --orange:#e48a4b;
  --cream:#fbfaf7;
  --paper:#ffffff;
  --line:#e8e2e9;
  --dark:#1e1427;
  --radius:18px;
  --shadow:0 18px 45px rgba(54,29,69,.10);
  --shadow-sm:0 8px 24px rgba(54,29,69,.07);
  --ease:all .25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,250,247,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,226,233,.9)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:245px}
.logo-mark{width:38px;height:38px;background:var(--purple);border-radius:12px;position:relative;box-shadow:inset 0 -5px 0 rgba(0,0,0,.15);flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:4px}
.logo-mark:before{width:20px;height:15px;left:9px;top:8px}
.logo-mark:after{width:4px;height:4px;background:var(--lime);border:0;left:12px;bottom:7px;box-shadow:8px 0 0 var(--lime),16px 0 0 var(--lime)}
.brand strong{font-size:16px;line-height:1.25;display:block}
.brand small{font-size:11px;color:var(--muted);display:block;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}
.nav-links a{font-size:14px;padding:9px 12px;border-radius:10px;color:#51495a;transition:var(--ease);white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple)}
.nav-actions{display:flex;align-items:center;gap:9px}
.nav-download{font-size:13px;color:var(--purple);font-weight:700;padding:10px 4px;white-space:nowrap}
.menu-toggle{display:none;border:0;background:transparent;color:var(--purple);font-size:25px;padding:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus,.nav-links a:focus,.footer-links a:focus,.topic-link:focus{outline:3px solid rgba(84,43,112,.22);outline-offset:3px}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 8px 18px rgba(84,43,112,.2)}
.btn-primary:hover{background:#43215d;box-shadow:0 12px 25px rgba(84,43,112,.26)}
.btn-secondary{background:#fff;color:var(--purple);border-color:#d8cde0}
.btn-secondary:hover{border-color:var(--purple);background:var(--purple-soft)}
.btn-light{background:var(--mint);color:#183f2c}
.btn-light:hover{background:#a3e7c1}
main{overflow:hidden}
.section{padding:78px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:30px}
.eyebrow{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:9px}
.section h2{margin:0;font-size:clamp(27px,3.8vw,42px);line-height:1.2;letter-spacing:-.04em}
.section-lead{max-width:590px;margin:0;color:var(--muted);font-size:15px}
.breadcrumb-band{padding:24px 0 13px}
.breadcrumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px}
.breadcrumbs a{transition:var(--ease)}
.breadcrumbs a:hover{color:var(--purple)}
.breadcrumbs b{font-weight:500;color:#b0a7b4}
.category-intro{padding:28px 0 56px;position:relative}
.category-intro:before{content:"";position:absolute;width:620px;height:620px;border:1px solid rgba(84,43,112,.11);border-radius:44%;right:-290px;top:-355px;transform:rotate(-20deg)}
.intro-shell{position:relative;overflow:hidden;background:linear-gradient(118deg,#f0eaf5 0%,#faf9f7 59%,#ecf8f0 100%);border:1px solid #e5dce8;border-radius:26px;padding:49px 54px;min-height:292px}
.intro-shell:after{content:"";position:absolute;right:58px;bottom:-42px;width:174px;height:174px;border-radius:30px;background:var(--purple);transform:rotate(18deg);opacity:.94}
.intro-copy{max-width:765px;position:relative;z-index:1}
.category-kicker{display:inline-flex;align-items:center;gap:7px;background:#fff;color:var(--purple);border:1px solid #dcd0e4;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:800}
.category-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint-deep)}
h1{font-size:clamp(35px,5vw,58px);line-height:1.15;letter-spacing:-.055em;margin:16px 0 17px}
.intro-copy p{color:#62596a;font-size:16px;max-width:700px;margin:0}
.intro-points{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:9px;margin-top:23px}
.pill{padding:6px 11px;border:1px solid rgba(84,43,112,.16);background:rgba(255,255,255,.72);border-radius:999px;font-size:12px;font-weight:700;color:#5e4a68}
.experience-section{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.experience-layout{display:grid;grid-template-columns:.86fr 1.14fr;gap:34px;align-items:stretch}
.experience-map{padding:31px;background:var(--purple-deep);border-radius:var(--radius);color:#fff;min-height:100%}
.experience-map h3{font-size:23px;line-height:1.3;margin:11px 0}
.experience-map>p{color:#d8cede;font-size:14px;margin:0 0 27px}
.map-list{padding:0;margin:0;list-style:none;display:grid;gap:13px}
.map-list li{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid rgba(255,255,255,.16);border-radius:13px;background:rgba(255,255,255,.07)}
.map-list b{width:29px;height:29px;display:grid;place-items:center;flex:none;border-radius:9px;background:var(--lime);color:#342140;font-size:12px}
.map-list span{font-size:13px;color:#f6f0f8}
.map-list small{display:block;color:#bfb0c8;font-size:11px;margin-top:1px}
.experience-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.experience-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;transition:var(--ease);position:relative;overflow:hidden}
.experience-card:hover{transform:translateY(-4px);border-color:#bea7c8;box-shadow:var(--shadow-sm)}
.experience-card:nth-child(2){background:#f2f9f4}
.experience-card:nth-child(3){background:#faf5ef}
.experience-card:nth-child(4){background:#f5f1f8}
.card-icon{width:42px;height:42px;border-radius:13px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-weight:900;font-size:17px}
.experience-card:nth-child(2) .card-icon{background:var(--mint);color:var(--mint-deep)}
.experience-card:nth-child(3) .card-icon{background:#f8dec8;color:#a85d2a}
.experience-card h3{font-size:18px;margin:16px 0 6px}
.experience-card p{font-size:13px;color:var(--muted);margin:0}
.topic-strip{padding:23px 0;background:#f4f0f6;border-bottom:1px solid #e7e0ea}
.topic-strip-inner{display:flex;align-items:center;gap:18px}
.topic-strip strong{font-size:14px;white-space:nowrap}
.topic-links{display:flex;gap:9px;flex-wrap:wrap}
.topic-link{font-size:13px;background:#fff;border:1px solid #ded4e3;padding:8px 13px;border-radius:999px;color:#5a4664;transition:var(--ease)}
.topic-link:hover{border-color:var(--purple);color:var(--purple);transform:translateY(-1px)}
.interface-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}
.sim-window{background:#281a32;border-radius:24px;padding:13px;box-shadow:var(--shadow);position:relative}
.sim-window:after{content:"";position:absolute;width:135px;height:135px;border-radius:50%;border:1px solid rgba(216,245,140,.45);right:-38px;top:-36px}
.sim-top{height:31px;display:flex;align-items:center;gap:6px;padding:0 7px;color:#d4c5dc;font-size:11px}
.dot{width:8px;height:8px;border-radius:50%;background:#d77a69}
.dot:nth-child(2){background:#f0c66e}.dot:nth-child(3){background:var(--mint)}
.sim-label{margin-left:auto;padding:3px 8px;background:rgba(255,255,255,.1);border-radius:999px;color:var(--mint)}
.sim-body{min-height:324px;border-radius:16px;padding:24px;background:linear-gradient(145deg,#61377c 0%,#351e47 50%,#1f3940 100%);position:relative;overflow:hidden}
.sim-body:before{content:"";position:absolute;inset:27px;border:1px solid rgba(255,255,255,.12);border-radius:13px}
.preview-title{position:relative;font-weight:800;font-size:19px;color:#fff}
.preview-sub{position:relative;margin-top:4px;font-size:12px;color:#d4c8da}
.preview-panel{position:absolute;left:24px;right:24px;bottom:23px;display:grid;grid-template-columns:1.2fr .8fr;gap:12px}
.preview-screen,.preview-controls{border-radius:13px;background:rgba(16,10,24,.42);border:1px solid rgba(255,255,255,.16);padding:15px}
.preview-screen{min-height:126px;display:flex;align-items:flex-end;gap:8px}
.preview-screen span{width:21%;border-radius:6px 6px 2px 2px;background:var(--mint);opacity:.92}
.preview-screen span:nth-child(1){height:40%}.preview-screen span:nth-child(2){height:67%;background:var(--lime)}.preview-screen span:nth-child(3){height:53%}.preview-screen span:nth-child(4){height:82%;background:#dcc5ed}
.preview-controls{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.preview-controls i{border-radius:8px;background:rgba(255,255,255,.13);min-height:39px}
.interface-copy h2{margin-bottom:17px}
.interface-copy>p{color:var(--muted);font-size:15px;margin:0 0 22px}
.detail-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.detail-list li{display:flex;gap:12px;align-items:flex-start}
.detail-list b{width:28px;height:28px;display:grid;place-items:center;flex:none;border-radius:9px;background:var(--mint);color:#21563c;font-size:13px}
.detail-list strong{display:block;font-size:14px;margin-bottom:1px}
.detail-list span{display:block;font-size:13px;color:var(--muted)}
.flow-section{background:#f4f0f6}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:32px}
.flow-step{position:relative;padding:0 24px 4px 0}
.flow-step:not(:last-child):after{content:"";position:absolute;top:22px;left:49px;right:-3px;border-top:1px dashed #bbaac5}
.step-no{position:relative;z-index:1;width:45px;height:45px;display:grid;place-items:center;background:#fff;border:1px solid #d5c7dc;border-radius:14px;color:var(--purple);font-size:14px;font-weight:900}
.flow-step h3{font-size:16px;margin:15px 0 6px}
.flow-step p{font-size:13px;color:var(--muted);margin:0;max-width:212px}
.compatibility-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:28px;align-items:start}
.notice-card{padding:31px;border-radius:var(--radius);background:#eaf8ef;border:1px solid #ccebd8}
.notice-icon{width:43px;height:43px;border-radius:13px;background:#fff;color:var(--mint-deep);display:grid;place-items:center;font-size:19px;font-weight:900}
.notice-card h3{font-size:22px;margin:18px 0 8px}
.notice-card p{font-size:14px;color:#4f6658;margin:0}
.device-table{overflow:hidden;border:1px solid var(--line);background:#fff;border-radius:var(--radius)}
.device-row{display:grid;grid-template-columns:1.05fr .9fr 1.25fr;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);align-items:center;font-size:13px}
.device-row:last-child{border-bottom:0}
.device-row.head{background:#f8f5f9;color:#786b80;font-size:12px;font-weight:800}
.device-name{font-size:14px;font-weight:800}
.device-tag{display:inline-flex;width:max-content;padding:4px 9px;border-radius:999px;background:var(--purple-soft);color:var(--purple);font-size:11px;font-weight:700}
.device-info{color:var(--muted)}
.faq-section{background:#fff}
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:105px}
.faq-side p{font-size:15px;color:var(--muted);margin:16px 0 0}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:21px 4px;background:transparent;border:0;color:var(--ink);text-align:left;font-weight:800;font-size:15px}
.faq-question span:last-child{width:27px;height:27px;border-radius:8px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;transition:var(--ease);font-size:19px;line-height:1}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg);background:var(--purple);color:#fff}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-answer>div{overflow:hidden}
.faq-answer p{margin:0;padding:0 4px 20px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{grid-template-rows:1fr}
.cta-section{padding:76px 0}
.cta-band{position:relative;overflow:hidden;background:var(--dark);border-radius:25px;padding:44px 52px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-band:before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;border:1px solid rgba(216,245,140,.24);right:-85px;top:-165px}
.cta-band:after{content:"";position:absolute;width:160px;height:160px;background:var(--purple);right:120px;bottom:-118px;transform:rotate(26deg);border-radius:24px}
.cta-band>div{position:relative;z-index:1}
.cta-band h2{font-size:clamp(26px,3vw,36px);letter-spacing:-.04em;line-height:1.25;margin:0 0 9px}
.cta-band p{margin:0;color:#c9bdcf;font-size:14px}
.cta-actions{display:flex;gap:11px;flex-wrap:wrap;flex:none}
.site-footer{background:var(--dark);color:#eee7f0;padding:61px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:35px;padding-bottom:46px}
.site-footer .brand{color:#fff;min-width:0}
.site-footer .brand small{color:#bdb1c4}
.footer-brand p{font-size:13px;line-height:1.8;color:#bdb1c4;max-width:300px;margin:17px 0 0}
.footer-title{font-size:13px;font-weight:800;color:#fff;margin:7px 0 14px}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13px;color:#bdb1c4;transition:var(--ease);width:max-content}
.footer-links a:hover{color:var(--mint);transform:translateX(2px)}
.footer-bottom{padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#a99cad;font-size:12px}
.footer-bottom a{color:var(--mint)}
@media (max-width:1024px){
  .navbar{gap:14px}
  .brand{min-width:218px}
  .nav-links a{padding:8px 8px;font-size:13px}
  .nav-download{display:none}
  .intro-shell{padding:41px}
  .interface-layout{gap:37px}
  .faq-layout{gap:35px}
}
@media (max-width:768px){
  .container{width:min(100% - 30px,1180px)}
  .navbar{height:70px;justify-content:space-between;gap:10px;position:relative}
  .brand{min-width:0}
  .brand strong{font-size:14px}
  .brand small{font-size:10px}
  .nav-actions .btn{display:none}
  .menu-toggle{display:block}
  .nav-links{display:none;position:absolute;top:70px;left:-15px;right:-15px;background:var(--cream);padding:13px 15px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 13px;font-size:14px}
  .section{padding:60px 0}
  .section-head{display:block;margin-bottom:24px}
  .section-lead{margin-top:13px}
  .breadcrumb-band{padding-top:18px}
  .category-intro{padding-bottom:39px}
  .intro-shell{padding:34px 25px;min-height:auto}
  .intro-shell:after{right:-45px;bottom:-63px;width:130px;height:130px}
  h1{font-size:39px}
  .experience-layout,.interface-layout,.compatibility-grid,.faq-layout{grid-template-columns:1fr}
  .experience-map{min-height:auto}
  .interface-layout{gap:31px}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:26px 12px}
  .flow-step{padding-right:16px}
  .flow-step:not(:last-child):after{display:none}
  .faq-side{position:static}
  .topic-strip-inner{align-items:flex-start;flex-direction:column;gap:11px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:29px}
}
@media (max-width:520px){
  .logo-mark{width:35px;height:35px}
  .brand small{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .section{padding:49px 0}
  .intro-shell{padding:29px 21px}
  h1{font-size:33px}
  .intro-copy p{font-size:14px}
  .experience-cards{grid-template-columns:1fr}
  .experience-card{padding:21px}
  .sim-body{min-height:278px;padding:19px}
  .preview-panel{left:18px;right:18px;bottom:18px;grid-template-columns:1fr}
  .preview-screen{display:none}
  .preview-controls{min-height:93px}
  .flow-grid{grid-template-columns:1fr;gap:24px}
  .flow-step{padding-right:0}
  .device-row{grid-template-columns:1fr;gap:4px;padding:15px 17px}
  .device-row.head{display:none}
  .device-row:not(.head){padding-top:17px}
  .device-row:not(.head) .device-name:before{content:"设备："}
  .device-row:not(.head) .device-tag:before{content:"适配："}
  .device-info:before{content:"说明：";font-weight:700;color:#64586a}
  .faq-question{font-size:14px;padding:18px 2px}
  .cta-band{padding:34px 25px;display:block}
  .cta-actions{margin-top:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:27px}
  .footer-bottom{display:block}
  .footer-bottom span{display:block;margin:5px 0}
}

/* roulang page: category2 */
:root{
      --ink:#241c2e;
      --muted:#736c7c;
      --purple:#542b70;
      --purple-deep:#32183f;
      --purple-soft:#eee7f5;
      --mint:#b9f1d1;
      --mint-deep:#247552;
      --lime:#d8f58c;
      --orange:#e48a4b;
      --cream:#fbfaf7;
      --paper:#ffffff;
      --line:#e8e2e9;
      --dark:#1e1427;
      --radius:18px;
      --shadow:0 18px 45px rgba(54,29,69,.10);
      --shadow-sm:0 8px 24px rgba(54,29,69,.07);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(251,250,247,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,226,233,.9)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:38px;height:38px;background:var(--purple);border-radius:12px;position:relative;box-shadow:inset 0 -5px 0 rgba(0,0,0,.15);flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:4px}
    .logo-mark:before{width:20px;height:15px;left:9px;top:8px}
    .logo-mark:after{width:4px;height:4px;background:var(--lime);border:0;left:12px;bottom:7px;box-shadow:8px 0 0 var(--lime),16px 0 0 var(--lime)}
    .brand strong{font-size:16px;line-height:1.25;display:block}
    .brand small{font-size:11px;color:var(--muted);display:block;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{font-size:14px;padding:9px 12px;border-radius:10px;color:#51495a;transition:var(--ease);white-space:nowrap}
    .nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple)}
    .nav-actions{display:flex;align-items:center;gap:9px}
    .nav-download{font-size:13px;color:var(--purple);font-weight:700;padding:10px 4px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--purple);font-size:25px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus,.nav-links a:focus,.footer-links a:focus{outline:3px solid rgba(84,43,112,.22);outline-offset:3px}
    .btn-primary{background:var(--purple);color:#fff;box-shadow:0 8px 18px rgba(84,43,112,.2)}
    .btn-primary:hover{background:#43215d;box-shadow:0 12px 25px rgba(84,43,112,.26)}
    .btn-secondary{background:#fff;color:var(--purple);border-color:#d8cde0}
    .btn-secondary:hover{border-color:var(--purple);background:var(--purple-soft)}
    .btn-light{background:var(--mint);color:#183f2c}
    .btn-light:hover{background:#a3e7c1}
    main{overflow:hidden}
    .page-hero{padding:62px 0 56px;background:linear-gradient(135deg,#f5f0f8 0%,#fbfaf7 62%,#eef8f2 100%);position:relative}
    .page-hero:after{content:"";position:absolute;width:250px;height:250px;right:8%;top:-115px;border:1px solid rgba(84,43,112,.15);border-radius:42%;transform:rotate(28deg)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:27px;position:relative;z-index:1}
    .breadcrumb a{color:var(--purple);font-weight:700}
    .breadcrumb span{color:#b0a7b5}
    .hero-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative;z-index:1}
    .eyebrow{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:11px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(35px,5vw,60px);line-height:1.15;letter-spacing:-.055em;margin-bottom:20px}
    h1 em{font-style:normal;color:var(--purple)}
    .hero-text{font-size:17px;color:var(--muted);max-width:650px;margin-bottom:27px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .tag-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
    .tag{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border-radius:99px;background:#fff;border:1px solid var(--line);font-size:12px;color:#5d5366}
    .tag i{width:7px;height:7px;border-radius:50%;background:var(--mint-deep);display:inline-block}
    .download-art{background:var(--purple-deep);border-radius:24px;padding:18px;min-height:285px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .art-top{display:flex;justify-content:space-between;color:#d7cadd;font-size:12px;padding-bottom:15px;border-bottom:1px solid rgba(255,255,255,.13)}
    .app-screen{display:grid;grid-template-columns:100px 1fr;gap:13px;margin-top:17px}
    .phone-side{border-radius:14px;background:#463054;padding:14px 10px;min-height:190px}
    .phone-side b{display:block;height:9px;border-radius:8px;background:var(--mint);margin-bottom:15px;width:55px}
    .phone-side span{display:block;height:7px;background:rgba(255,255,255,.25);border-radius:8px;margin:13px 0}
    .screen-main{border:1px solid rgba(255,255,255,.18);border-radius:15px;padding:16px;background:linear-gradient(145deg,#67427a,#382041)}
    .screen-main h3{color:#fff;font-size:19px;margin:4px 0 20px}
    .screen-lines{display:grid;gap:9px}
    .screen-lines span{height:12px;border-radius:8px;background:rgba(255,255,255,.2)}
    .screen-lines span:nth-child(2){width:78%;background:var(--mint)}
    .screen-lines span:nth-child(3){width:60%;background:var(--lime)}
    .status-pill{display:inline-block;margin-top:23px;background:var(--lime);color:#293c28;border-radius:99px;padding:4px 9px;font-size:11px;font-weight:800}
    .section{padding:78px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,4vw,40px);line-height:1.2;letter-spacing:-.04em;margin-bottom:0}
    .section-lead{max-width:600px;color:var(--muted);font-size:15px}
    .intro-strip{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px 28px;display:grid;grid-template-columns:160px 1fr;gap:25px;align-items:center;box-shadow:var(--shadow-sm)}
    .intro-strip strong{font-size:20px;color:var(--purple)}
    .intro-strip p{color:var(--muted);font-size:14px;margin-bottom:0}
    .download-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:38px;box-shadow:var(--shadow-sm)}
    .download-panel h2{margin-bottom:15px}
    .download-panel p{color:var(--muted);font-size:15px}
    .qr-box{width:150px;height:150px;border-radius:15px;background:repeating-linear-gradient(45deg,#32183f 0 5px,#fff 5px 10px);border:10px solid #fff;box-shadow:0 0 0 1px var(--line);margin-top:22px}
    .qr-note{font-size:12px;color:var(--muted);margin-top:10px}
    .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:21px 0}
    .meta-chip{padding:8px 12px;border-radius:10px;background:var(--purple-soft);color:var(--purple);font-size:12px;font-weight:700}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
    .steps:before{content:"";position:absolute;left:12%;right:12%;top:24px;border-top:1px dashed #cdbed5}
    .step{position:relative;padding:0 25px;text-align:center}
    .step-number{width:49px;height:49px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;background:var(--purple);color:#fff;border-radius:15px;font-weight:800;position:relative;z-index:1;box-shadow:0 0 0 8px var(--cream)}
    .step:nth-child(2) .step-number{background:var(--mint-deep)}
    .step:nth-child(3) .step-number{background:var(--orange)}
    .step h3{font-size:18px;margin-bottom:7px}
    .step p{font-size:13px;color:var(--muted);margin-bottom:0}
    .prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .prep-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:var(--ease)}
    .prep-card:hover{border-color:#bea7c8;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
    .prep-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--purple-soft);color:var(--purple);font-weight:800;margin-bottom:17px}
    .prep-card:nth-child(2){background:#f4fbf7}.prep-card:nth-child(2) .prep-icon{background:var(--mint)}
    .prep-card:nth-child(3){background:#fff8f1}.prep-card:nth-child(3) .prep-icon{background:#ffe0c4}
    .prep-card h3{font-size:18px;margin-bottom:8px}
    .prep-card p{font-size:13px;color:var(--muted);margin-bottom:0}
    .notice{padding:17px 20px;background:#f5f0f8;border-left:4px solid var(--purple);border-radius:12px;color:#5d5366;font-size:14px}
    .version-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
    .version-card{background:var(--dark);color:#fff;border-radius:var(--radius);padding:28px}
    .version-card .version-label{display:inline-block;color:#243d2c;background:var(--lime);border-radius:99px;padding:4px 10px;font-size:11px;font-weight:800;margin-bottom:18px}
    .version-card h3{font-size:25px;margin-bottom:12px}
    .version-card p{color:#cbbfd0;font-size:14px;margin-bottom:20px}
    .version-list{display:grid;gap:12px}
    .version-list div{padding:14px 0;border-top:1px solid rgba(255,255,255,.13);display:flex;justify-content:space-between;gap:15px;font-size:13px}
    .version-list span{color:#cbbfd0}
    .timeline{border-left:2px solid #d8cde0;padding-left:25px;display:grid;gap:22px}
    .timeline-item{position:relative}
    .timeline-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--orange);left:-31px;top:8px}
    .timeline-item strong{font-size:16px;display:block;margin-bottom:5px}
    .timeline-item p{font-size:13px;color:var(--muted);margin-bottom:0}
    .compatibility{background:#f1f8f4}
    .compat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .device-card{background:#fff;border:1px solid #dcebe1;border-radius:16px;padding:22px}
    .device-card h3{font-size:18px;margin-bottom:12px}
    .device-card ul{padding:0;margin:0;list-style:none;color:var(--muted);font-size:13px}
    .device-card li{padding:8px 0;border-top:1px solid #edf2ee}
    .device-card li:before{content:"✓";color:var(--mint-deep);font-weight:800;margin-right:8px}
    .faq-list{max-width:880px;margin:auto;border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    summary{cursor:pointer;list-style:none;font-weight:700;font-size:16px;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";font-size:22px;color:var(--purple);line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;max-width:780px;margin:12px 35px 0 0}
    .cta-band{padding:42px;border-radius:24px;background:var(--purple-deep);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-band h2{font-size:30px;margin-bottom:8px}
    .cta-band p{color:#d7cadd;margin-bottom:0;font-size:14px}
    .site-footer{background:var(--dark);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .brand{min-width:0;margin-bottom:17px}
    .footer-brand .brand strong{color:#fff}
    .footer-brand p{font-size:13px;color:#cbbfd0;max-width:290px}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:14px;color:#fff}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#cbbfd0;transition:var(--ease)}
    .footer-links a:hover{color:var(--mint)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:19px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#a99bae;font-size:12px}
    .footer-bottom a{color:#d7cadd}
    @media (max-width:1024px){
      .navbar{gap:16px}.brand{min-width:215px}.nav-links a{padding:8px 7px}
      .hero-layout,.download-panel{gap:30px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 30px,620px)}
      .navbar{height:70px}.menu-toggle{display:block;margin-left:auto}
      .nav-links{display:none;position:absolute;left:15px;right:15px;top:70px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-actions{display:none}
      .brand{min-width:0}.brand small{display:none}
      .page-hero{padding:40px 0}.hero-layout,.download-panel,.version-layout{grid-template-columns:1fr}
      .download-art{max-width:540px;margin:auto;width:100%}
      .section{padding:58px 0}.section-head{display:block}.section-lead{margin-top:14px}
      .intro-strip{grid-template-columns:1fr;gap:8px}
      .steps{grid-template-columns:1fr;gap:28px}.steps:before{left:50%;top:48px;bottom:48px;border-top:0;border-left:1px dashed #cdbed5}
      .prep-grid,.compat-grid{grid-template-columns:1fr}
      .cta-band{display:block;padding:30px 24px}.cta-band .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media (max-width:520px){
      h1{font-size:35px}.hero-text{font-size:15px}
      .hero-actions .btn{width:100%}.download-panel{padding:24px 19px}
      .app-screen{grid-template-columns:75px 1fr}.phone-side{padding:12px 8px}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
    }

/* roulang page: category3 */
:root{
      --ink:#241c2e;
      --muted:#736c7c;
      --purple:#542b70;
      --purple-deep:#32183f;
      --purple-soft:#eee7f5;
      --mint:#b9f1d1;
      --mint-deep:#247552;
      --lime:#d8f58c;
      --orange:#e48a4b;
      --cream:#fbfaf7;
      --paper:#ffffff;
      --line:#e8e2e9;
      --dark:#1e1427;
      --radius:18px;
      --shadow:0 18px 45px rgba(54,29,69,.10);
      --shadow-sm:0 8px 24px rgba(54,29,69,.07);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--cream);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      background:rgba(251,250,247,.95);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(232,226,233,.9);
    }
    .navbar{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:28px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:11px;
      min-width:245px;
    }
    .logo-mark{
      width:38px;
      height:38px;
      flex:0 0 38px;
      background:var(--purple);
      border-radius:12px;
      position:relative;
      box-shadow:inset 0 -5px 0 rgba(0,0,0,.15);
    }
    .logo-mark:before,.logo-mark:after{
      content:"";
      position:absolute;
      border:2px solid var(--mint);
      border-radius:4px;
    }
    .logo-mark:before{width:20px;height:15px;left:9px;top:8px}
    .logo-mark:after{
      width:4px;
      height:4px;
      background:var(--lime);
      border:0;
      left:12px;
      bottom:7px;
      box-shadow:8px 0 0 var(--lime),16px 0 0 var(--lime);
    }
    .brand strong{font-size:16px;line-height:1.25;display:block}
    .brand small{font-size:11px;color:var(--muted);display:block;margin-top:2px}
    .nav-links{
      display:flex;
      align-items:center;
      gap:5px;
      flex:1;
    }
    .nav-links a{
      font-size:14px;
      padding:9px 12px;
      border-radius:10px;
      color:#51495a;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover,.nav-links a.active{
      background:var(--purple-soft);
      color:var(--purple);
    }
    .nav-actions{display:flex;align-items:center;gap:9px}
    .nav-download{
      font-size:13px;
      color:var(--purple);
      font-weight:700;
      padding:10px 4px;
      white-space:nowrap;
    }
    .menu-toggle{
      display:none;
      border:0;
      background:transparent;
      color:var(--purple);
      font-size:25px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 20px;
      border-radius:12px;
      font-weight:700;
      font-size:14px;
      border:1px solid transparent;
      transition:var(--ease);
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:focus,.nav-links a:focus,.faq-question:focus{
      outline:3px solid rgba(84,43,112,.22);
      outline-offset:3px;
    }
    .btn-primary{
      background:var(--purple);
      color:#fff;
      box-shadow:0 8px 18px rgba(84,43,112,.2);
    }
    .btn-primary:hover{
      background:#43215d;
      color:#fff;
      box-shadow:0 12px 25px rgba(84,43,112,.26);
    }
    .btn-secondary{
      background:#fff;
      color:var(--purple);
      border-color:#d8cde0;
    }
    .btn-secondary:hover{border-color:var(--purple);background:var(--purple-soft)}
    .btn-light{background:var(--mint);color:#183f2c}
    .btn-light:hover{background:#a3e7c1;color:#183f2c}
    main{overflow:hidden}
    .page-hero{
      padding:62px 0 54px;
      background:linear-gradient(135deg,#f1eaf5 0%,#fbfaf7 58%,#eef8f2 100%);
      position:relative;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      right:8%;
      top:35px;
      width:210px;
      height:210px;
      border:1px solid rgba(84,43,112,.16);
      border-radius:42% 58% 55% 45%;
      transform:rotate(22deg);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      margin-bottom:28px;
      position:relative;
      z-index:1;
    }
    .breadcrumb a{color:var(--purple)}
    .breadcrumb span{color:#b5abb9}
    .page-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:60px;
      align-items:end;
      position:relative;
      z-index:1;
    }
    .eyebrow{
      color:var(--orange);
      font-size:12px;
      font-weight:800;
      letter-spacing:.12em;
      margin-bottom:10px;
    }
    .page-hero h1{
      margin:0;
      max-width:760px;
      font-size:clamp(34px,5vw,60px);
      line-height:1.18;
      letter-spacing:-.055em;
    }
    .page-hero h1 em{font-style:normal;color:var(--purple)}
    .page-hero p{
      max-width:720px;
      color:var(--muted);
      font-size:16px;
      margin:20px 0 0;
    }
    .signal-card{
      background:var(--purple-deep);
      color:#fff;
      border-radius:22px;
      padding:24px;
      box-shadow:var(--shadow);
      transform:rotate(2deg);
    }
    .signal-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      color:#d9c8e3;
      font-size:12px;
      border-bottom:1px solid rgba(255,255,255,.16);
      padding-bottom:14px;
    }
    .signal-dot{
      width:8px;
      height:8px;
      display:inline-block;
      background:var(--mint);
      border-radius:50%;
      margin-right:6px;
    }
    .signal-card h2{font-size:24px;line-height:1.3;margin:25px 0 18px}
    .signal-list{display:grid;gap:10px}
    .signal-list div{
      display:flex;
      justify-content:space-between;
      gap:16px;
      font-size:13px;
      color:#e8dfee;
    }
    .signal-list b{color:var(--lime);font-weight:700}
    .section{padding:82px 0}
    .section-soft{background:#f4f0f6}
    .section-white{background:#fff}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:25px;
      margin-bottom:30px;
    }
    .section h2{
      margin:0;
      font-size:clamp(27px,4vw,41px);
      line-height:1.2;
      letter-spacing:-.04em;
    }
    .section-lead{
      max-width:600px;
      color:var(--muted);
      font-size:15px;
      margin:0;
    }
    .info-strip{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:20px;
      padding:24px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
    }
    .info-strip p{margin:0;color:var(--muted);font-size:14px}
    .info-points{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:99px;
      background:#fff;
      border:1px solid var(--line);
      font-size:12px;
      color:#5d5366;
    }
    .tag i{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--mint-deep);
      display:inline-block;
    }
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 285px;
      gap:30px;
      align-items:start;
    }
    .topic-list{display:grid;gap:14px}
    .topic-card{
      display:grid;
      grid-template-columns:76px minmax(0,1fr) auto;
      align-items:center;
      gap:20px;
      padding:22px 24px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      transition:var(--ease);
    }
    .topic-card:hover{
      border-color:#bea7c8;
      box-shadow:var(--shadow-sm);
      transform:translateY(-2px);
    }
    .topic-index{
      width:52px;
      height:52px;
      display:grid;
      place-items:center;
      color:var(--purple);
      background:var(--purple-soft);
      border-radius:15px;
      font-weight:800;
      font-size:17px;
    }
    .topic-card h3{font-size:19px;margin:0 0 5px}
    .topic-card p{font-size:13px;color:var(--muted);margin:0}
    .topic-card time{font-size:12px;color:var(--orange);white-space:nowrap}
    .topic-card .arrow{
      color:var(--purple);
      font-size:20px;
      transition:var(--ease);
    }
    .topic-card:hover .arrow{transform:translateX(4px)}
    .side-panel{
      background:var(--dark);
      color:#fff;
      border-radius:var(--radius);
      padding:25px;
      position:sticky;
      top:105px;
    }
    .side-panel .eyebrow{color:var(--lime)}
    .side-panel h3{font-size:22px;line-height:1.35;margin:0 0 15px}
    .side-panel p{color:#cfc1d5;font-size:13px;margin:0 0 20px}
    .side-links{display:grid;gap:8px}
    .side-links a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:11px 0;
      border-bottom:1px solid rgba(255,255,255,.13);
      color:#eee5f1;
      font-size:13px;
    }
    .side-links a:hover{color:var(--mint)}
    .timeline{
      display:grid;
      grid-template-columns:170px minmax(0,1fr);
      gap:0;
      border-top:1px solid var(--line);
    }
    .timeline-item{
      display:contents;
    }
    .timeline-date{
      padding:24px 20px 24px 0;
      border-bottom:1px solid var(--line);
      color:var(--orange);
      font-size:13px;
      font-weight:800;
    }
    .timeline-body{
      padding:24px 0 24px 26px;
      border-bottom:1px solid var(--line);
      position:relative;
    }
    .timeline-body:before{
      content:"";
      position:absolute;
      left:-5px;
      top:31px;
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--mint-deep);
      box-shadow:0 0 0 5px var(--cream);
    }
    .timeline-body h3{font-size:19px;margin:0 0 5px}
    .timeline-body p{color:var(--muted);font-size:14px;margin:0;max-width:700px}
    .label{
      display:inline-block;
      margin-bottom:8px;
      padding:4px 9px;
      border-radius:6px;
      background:var(--purple-soft);
      color:var(--purple);
      font-size:11px;
      font-weight:800;
    }
    .play-layout{
      display:grid;
      grid-template-columns:.88fr 1.12fr;
      gap:46px;
      align-items:center;
    }
    .play-board{
      min-height:300px;
      padding:20px;
      border-radius:20px;
      background:var(--purple-deep);
      box-shadow:var(--shadow);
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .play-board:before{
      content:"";
      position:absolute;
      width:250px;
      height:250px;
      border:1px solid rgba(185,241,209,.22);
      border-radius:50%;
      right:-80px;
      bottom:-100px;
    }
    .board-bar{display:flex;gap:6px;margin-bottom:22px}
    .board-bar i{width:8px;height:8px;border-radius:50%;background:#b7a2c3}
    .board-bar i:first-child{background:var(--mint)}
    .board-screen{
      border:1px solid rgba(255,255,255,.2);
      border-radius:14px;
      padding:19px;
      min-height:150px;
      background:rgba(255,255,255,.07);
      position:relative;
    }
    .board-screen strong{font-size:24px;display:block;margin-bottom:8px}
    .screen-line{height:7px;border-radius:99px;background:rgba(255,255,255,.18);margin:9px 0}
    .screen-line.short{width:55%}
    .board-controls{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:8px;
      margin-top:12px;
    }
    .board-controls span{
      height:30px;
      display:grid;
      place-items:center;
      border-radius:8px;
      background:var(--mint);
      color:#204e38;
      font-size:11px;
      font-weight:800;
    }
    .play-copy h2{margin-bottom:18px}
    .play-copy>p{color:var(--muted);font-size:15px;margin:0 0 22px}
    .play-points{display:grid;gap:15px}
    .play-point{
      display:grid;
      grid-template-columns:38px 1fr;
      gap:13px;
      align-items:start;
    }
    .play-point b{
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      border-radius:10px;
      background:var(--lime);
      color:var(--purple-deep);
      font-size:13px;
    }
    .play-point h3{font-size:16px;margin:0 0 2px}
    .play-point p{font-size:13px;color:var(--muted);margin:0}
    .tip-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:15px;
    }
    .tip-card{
      padding:23px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      transition:var(--ease);
    }
    .tip-card:nth-child(2){background:#f3faf6}
    .tip-card:nth-child(3){background:#fff7ef}
    .tip-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
    .tip-symbol{font-size:25px;color:var(--purple);margin-bottom:14px}
    .tip-card h3{font-size:18px;margin:0 0 8px}
    .tip-card p{font-size:13px;color:var(--muted);margin:0}
    .faq-wrap{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{
      width:100%;
      border:0;
      background:transparent;
      color:var(--ink);
      text-align:left;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:20px 0;
      font-weight:800;
      font-size:16px;
    }
    .faq-question span:last-child{
      color:var(--purple);
      font-size:22px;
      transition:var(--ease);
    }
    .faq-answer{
      display:none;
      color:var(--muted);
      font-size:14px;
      padding:0 38px 20px 0;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-panel{
      padding:42px 48px;
      border-radius:22px;
      background:var(--purple-deep);
      color:#fff;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:30px;
      position:relative;
      overflow:hidden;
    }
    .cta-panel:after{
      content:"";
      position:absolute;
      right:40px;
      top:-80px;
      width:220px;
      height:220px;
      border:1px solid rgba(185,241,209,.2);
      border-radius:50%;
    }
    .cta-panel h2{font-size:clamp(25px,3vw,36px);margin:0 0 8px;position:relative;z-index:1}
    .cta-panel p{color:#d6c9dc;font-size:14px;margin:0;position:relative;z-index:1}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
    .site-footer{
      background:var(--dark);
      color:#fff;
      padding:54px 0 22px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.6fr repeat(3,1fr);
      gap:35px;
      padding-bottom:38px;
    }
    .footer-brand .brand{min-width:0;margin-bottom:16px}
    .footer-brand .brand strong{color:#fff}
    .footer-brand .brand small{color:#b8a9bd}
    .footer-brand p{color:#b8a9bd;font-size:13px;max-width:290px;margin:0}
    .footer-title{font-size:13px;font-weight:800;margin-bottom:13px;color:var(--mint)}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#c7b9cc;transition:var(--ease)}
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.12);
      padding-top:18px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:#9d8da4;
      font-size:11px;
    }
    .footer-bottom a{color:#d7c9dc}
    @media (max-width:1024px){
      .navbar{gap:16px}
      .brand{min-width:220px}
      .nav-links a{padding:8px 8px;font-size:13px}
      .nav-download{display:none}
      .page-hero-grid{gap:35px}
      .content-layout{grid-template-columns:1fr}
      .side-panel{position:static}
      .side-links{grid-template-columns:repeat(3,1fr);gap:0 18px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 30px,620px)}
      .navbar{min-height:70px;justify-content:space-between}
      .brand{min-width:0}
      .brand small{display:none}
      .menu-toggle{display:block}
      .nav-links{
        display:none;
        position:absolute;
        left:15px;
        right:15px;
        top:70px;
        padding:12px;
        background:#fff;
        border:1px solid var(--line);
        border-radius:16px;
        box-shadow:var(--shadow);
        flex-direction:column;
        align-items:stretch;
      }
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-actions .btn{display:none}
      .page-hero{padding:42px 0}
      .page-hero-grid{grid-template-columns:1fr;gap:28px}
      .page-hero:after{right:-70px;top:120px}
      .signal-card{max-width:360px;transform:none}
      .section{padding:62px 0}
      .section-head{display:block;margin-bottom:24px}
      .section-lead{margin-top:12px}
      .info-strip{grid-template-columns:1fr;padding:20px}
      .info-points{justify-content:flex-start}
      .topic-card{grid-template-columns:52px 1fr auto;padding:18px 15px;gap:13px}
      .topic-card h3{font-size:16px}
      .topic-card p{font-size:12px}
      .topic-card time{display:none}
      .play-layout{grid-template-columns:1fr;gap:30px}
      .tip-grid{grid-template-columns:1fr}
      .timeline{grid-template-columns:90px 1fr}
      .timeline-date{padding-right:10px;font-size:12px}
      .timeline-body{padding-left:20px}
      .cta-panel{display:block;padding:32px 25px}
      .cta-actions{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media (max-width:520px){
      .brand strong{font-size:14px}
      .logo-mark{width:34px;height:34px;flex-basis:34px}
      .logo-mark:before{left:7px;top:7px}
      .logo-mark:after{left:10px}
      .page-hero h1{font-size:36px}
      .topic-card .arrow{font-size:17px}
      .side-links{grid-template-columns:1fr}
      .board-controls{grid-template-columns:repeat(2,1fr)}
      .timeline{grid-template-columns:1fr}
      .timeline-date{border-bottom:0;padding:20px 0 5px}
      .timeline-body{padding:0 0 20px 20px}
      .timeline-body:before{top:7px}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
    }