/* roulang page: index */
:root{
  --purple:#7656D7;
  --purple-dark:#6041bf;
  --purple-soft:#eeeaf8;
  --mint:#35bfa4;
  --mint-soft:#e7f5f0;
  --coral:#f47c5b;
  --coral-soft:#fff0eb;
  --ink:#24242b;
  --text:#494853;
  --muted:#696875;
  --faint:#91909b;
  --canvas:#f6f4ef;
  --white:#fff;
  --line:#e4e0da;
  --shadow:0 12px 32px rgba(73,55,129,.09);
  --shadow-hover:0 18px 38px rgba(73,55,129,.14);
  --radius:20px;
  --radius-sm:14px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
::selection{background:#dcd3fb;color:var(--ink)}
.container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(228,224,218,.92);backdrop-filter:blur(12px)}
.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:260px;font-size:15px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.brand-mark{position:relative;width:34px;height:34px;border-radius:10px;background:var(--purple);box-shadow:inset 0 -3px 0 rgba(0,0,0,.12)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:2px}
.brand-mark:before{width:16px;height:5px;left:9px;top:14px}
.brand-mark:after{width:5px;height:16px;left:14px;top:9px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px}
.desktop-nav a{position:relative;padding:9px 11px;border-radius:9px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s ease}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--purple);background:var(--purple-soft)}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.desktop-nav a:focus-visible,.mobile-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(53,191,164,.42);outline-offset:3px}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 7px 16px rgba(118,86,215,.22)}
.btn-primary:hover{background:var(--purple-dark);box-shadow:0 10px 22px rgba(96,65,191,.28)}
.btn-outline{background:#fff;border-color:#cfc5ef;color:var(--purple)}
.btn-outline:hover{background:var(--purple-soft);border-color:var(--purple)}
.btn-mint{background:var(--mint);color:#fff;box-shadow:0 7px 16px rgba(53,191,164,.19)}
.btn-mint:hover{background:#259f88}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--purple);font-size:20px}
.mobile-nav{display:none;padding:0 16px 16px;border-top:1px solid var(--line)}
.mobile-nav a{display:block;padding:12px 8px;border-bottom:1px solid #eeeae5;color:var(--text);font-size:15px;font-weight:750}
.mobile-nav .btn{margin-top:14px;width:100%}
main{overflow:hidden}
.section{padding:88px 0}
.section-tight{padding:50px 0}
.section-title{max-width:670px;margin-bottom:34px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;margin-bottom:12px;color:var(--purple);font-size:13px;font-weight:850;letter-spacing:.06em}
.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px var(--mint-soft)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(34px,4.4vw,58px);line-height:1.14;letter-spacing:-.055em;margin-bottom:22px}
h2{font-size:clamp(26px,3vw,38px);line-height:1.25;letter-spacing:-.045em;margin-bottom:14px}
h3{font-size:18px;line-height:1.4;margin-bottom:8px}
.lead{color:var(--muted);font-size:17px;line-height:1.85;margin-bottom:0}
.hero{position:relative;padding:74px 0 62px;background:linear-gradient(105deg,#f8f6f0 0%,#f8f6f0 52%,#eeeaf8 52%,#eeeaf8 100%)}
.hero:before{content:"";position:absolute;right:7%;top:40px;width:155px;height:155px;background-image:radial-gradient(rgba(118,86,215,.23) 1.2px,transparent 1.2px);background-size:12px 12px;opacity:.7}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:48px}
.hero-copy{padding:20px 0}
.hero-copy .lead{max-width:590px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:22px;color:var(--faint);font-size:13px}
.hero-note i{width:9px;height:9px;border-radius:50%;background:var(--mint)}
.device-stage{min-height:435px;position:relative;display:flex;justify-content:center;align-items:center}
.device{position:relative;width:278px;height:408px;padding:15px;border:8px solid #2c2a35;border-radius:37px;background:#292733;box-shadow:20px 24px 0 rgba(118,86,215,.16),0 25px 40px rgba(61,48,103,.22)}
.device:before{content:"";position:absolute;width:90px;height:20px;border-radius:0 0 12px 12px;background:#292733;left:50%;top:-2px;transform:translateX(-50%);z-index:2}
.device-screen{height:100%;overflow:hidden;border-radius:23px;background:#f8f6ff;padding:18px 13px}
.screen-top{display:flex;justify-content:space-between;align-items:center;font-size:9px;font-weight:800;color:#6c6878}
.screen-logo{display:flex;align-items:center;gap:4px;color:var(--purple)}
.screen-logo b{width:13px;height:13px;border-radius:4px;background:var(--purple);display:inline-block}
.screen-banner{height:108px;margin-top:16px;padding:14px;border-radius:14px;background:linear-gradient(135deg,var(--purple),#9b79ed);color:#fff;position:relative;overflow:hidden}
.screen-banner:after{content:"✦";position:absolute;right:16px;bottom:-25px;color:rgba(255,255,255,.19);font-size:100px}
.screen-banner small{display:block;opacity:.8;font-size:8px}
.screen-banner strong{position:relative;display:block;max-width:110px;margin-top:7px;font-size:16px;line-height:1.18;z-index:1}
.screen-dots{display:flex;gap:4px;margin-top:11px}
.screen-dots span{width:17px;height:4px;border-radius:4px;background:#ded7f5}.screen-dots span:first-child{background:var(--mint)}
.screen-games{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.game-tile{height:60px;border-radius:10px;background:#e8e3f6;padding:8px;position:relative}
.game-tile:nth-child(2){background:#dff2ec}.game-tile:nth-child(3){background:#fee9e2}
.game-tile:after{content:"";position:absolute;bottom:8px;left:8px;width:25px;height:5px;border-radius:5px;background:rgba(36,36,43,.22)}
.screen-panel{display:flex;align-items:center;justify-content:space-between;margin-top:17px;padding:9px;border-radius:11px;background:#fff;box-shadow:0 5px 13px rgba(63,51,91,.08)}
.dpad{width:35px;height:35px;border-radius:10px;background:#eeeaf8;position:relative}.dpad:before,.dpad:after{content:"";position:absolute;background:var(--purple);border-radius:2px}.dpad:before{height:6px;width:21px;left:7px;top:14px}.dpad:after{width:6px;height:21px;left:14px;top:7px}
.action-dots{display:flex;gap:6px}.action-dots i{width:14px;height:14px;border-radius:50%;background:var(--coral)}.action-dots i:last-child{background:var(--mint)}
.float-tag{position:absolute;padding:9px 12px;border:1px solid rgba(255,255,255,.85);border-radius:10px;background:#fff;box-shadow:var(--shadow);font-size:12px;font-weight:850;color:var(--ink)}
.float-tag:before{content:"";display:inline-block;width:7px;height:7px;margin-right:6px;border-radius:50%;background:var(--mint)}
.tag-one{left:0;top:66px}.tag-two{right:0;top:120px}.tag-two:before{background:var(--coral)}.tag-three{left:18px;bottom:48px}.tag-three:before{background:var(--purple)}
.ability-bar{margin-top:-1px;background:var(--ink);color:#fff}
.ability-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.ability-item{display:flex;align-items:flex-start;gap:13px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.13)}
.ability-item:last-child{border-right:0}
.ability-icon{display:grid;place-items:center;flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.13);color:#9ce8d9;font-weight:900}
.ability-item h3{margin:0 0 2px;font-size:15px}.ability-item p{margin:0;color:#c9c7d0;font-size:13px;line-height:1.55}
.trial-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:56px;align-items:center}
.trial-copy p{color:var(--muted);margin-bottom:23px}
.trial-matrix{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.entry-card{min-height:152px;padding:22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:.22s ease}
.entry-card:nth-child(2){transform:translateY(26px);background:var(--purple-soft);border-color:#ddd3fa}.entry-card:nth-child(3){background:var(--mint-soft);border-color:#cdece3}.entry-card:nth-child(4){transform:translateY(26px);background:var(--coral-soft);border-color:#f9d9d0}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.entry-card:nth-child(2):hover,.entry-card:nth-child(4):hover{transform:translateY(20px)}
.entry-index{display:block;margin-bottom:18px;color:var(--purple);font-size:13px;font-weight:900}.entry-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.flow-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:42px}.flow-head p{max-width:480px;margin:0;color:var(--muted)}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}.flow:before{content:"";position:absolute;left:12%;right:12%;top:27px;height:2px;background:linear-gradient(90deg,var(--mint),#ddd7ef,var(--purple))}
.flow-step{position:relative;padding:0 18px 0 0}.flow-number{position:relative;z-index:1;display:grid;place-items:center;width:56px;height:56px;margin-bottom:18px;border:6px solid #fff;border-radius:50%;background:var(--purple);color:#fff;font-size:15px;font-weight:900;box-shadow:0 0 0 1px #d9d0f5}.flow-step:nth-child(2) .flow-number{background:var(--mint)}.flow-step:nth-child(3) .flow-number{background:var(--coral)}.flow-step:nth-child(4) .flow-number{background:#4d4a59}.flow-step p{max-width:210px;color:var(--muted);font-size:14px;margin:0}.flow-tip{display:inline-block;margin-top:10px;color:var(--purple);font-size:12px;font-weight:800}
.demo-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:38px;align-items:stretch}
.module-list{padding:10px 0}.module-item{display:flex;gap:14px;padding:18px;border-bottom:1px solid var(--line);transition:.2s ease}.module-item:first-child{border-radius:14px;background:var(--purple-soft);border-bottom-color:transparent}.module-item:hover{background:#faf9fd;border-radius:14px}.module-key{flex:0 0 28px;height:28px;border-radius:8px;display:grid;place-items:center;background:#fff;color:var(--purple);font-size:12px;font-weight:900}.module-item p{margin:3px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
.console{padding:28px;border-radius:var(--radius);background:#2a2833;box-shadow:var(--shadow);color:#fff;overflow:hidden;position:relative}.console:after{content:"";position:absolute;inset:auto -50px -100px auto;width:320px;height:320px;border:35px solid rgba(118,86,215,.23);border-radius:50%}
.console-top{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;color:#e2ddee;font-size:13px}.console-status{display:flex;align-items:center;gap:7px;color:#9ce8d9}.console-status i{width:7px;height:7px;border-radius:50%;background:var(--mint)}
.console-main{position:relative;z-index:1;min-height:240px;padding:25px;border:1px solid rgba(255,255,255,.12);border-radius:15px;background:linear-gradient(135deg,#3b3748,#282631)}
.console-main small{color:#a7a0bc}.console-main strong{display:block;max-width:270px;margin-top:11px;font-size:29px;line-height:1.2;letter-spacing:-.04em}.console-bars{display:flex;gap:7px;margin-top:30px}.console-bars span{width:48px;height:7px;border-radius:4px;background:rgba(255,255,255,.15)}.console-bars span:first-child{background:var(--mint)}.console-bars span:nth-child(2){background:var(--purple)}
.console-controls{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;margin-top:20px}.large-dpad{width:75px;height:75px;border-radius:19px;background:#484351;position:relative}.large-dpad:before,.large-dpad:after{content:"";position:absolute;background:#e8e4f3;border-radius:3px}.large-dpad:before{width:40px;height:12px;left:18px;top:31px}.large-dpad:after{height:40px;width:12px;top:18px;left:31px}.round-controls{display:flex;gap:12px}.round-controls i{width:36px;height:36px;border-radius:50%;background:var(--coral);box-shadow:inset 0 -4px 0 rgba(0,0,0,.14)}.round-controls i:last-child{background:var(--mint)}
.compat-wrap{padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 24px rgba(63,55,80,.04)}
.compat-table{width:100%;border-collapse:collapse}.compat-table th,.compat-table td{padding:17px 14px;text-align:left;border-bottom:1px solid #ece8e3;font-size:14px}.compat-table th{color:var(--faint);font-size:12px;font-weight:850;letter-spacing:.04em}.compat-table tr:last-child td{border-bottom:0}.status{display:inline-flex;align-items:center;gap:6px;padding:4px 9px;border-radius:20px;background:var(--mint-soft);color:#217d6b;font-size:12px;font-weight:800}.status:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint)}.status.note{background:var(--coral-soft);color:#ba5d44}.status.note:before{background:var(--coral)}
.download-zone{background:var(--purple-soft);position:relative}.download-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:center}.download-copy .lead{margin-bottom:22px}.version-line{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.version-chip{padding:7px 10px;border-radius:8px;background:#fff;color:var(--muted);font-size:12px;font-weight:750}.version-chip b{color:var(--purple)}
.download-panel{display:grid;grid-template-columns:1fr 1fr;gap:14px}.platform-card{padding:22px;border:1px solid #ddd4f4;border-radius:16px;background:#fff;box-shadow:0 10px 22px rgba(84,63,143,.07)}.platform-icon{display:grid;place-items:center;width:39px;height:39px;margin-bottom:18px;border-radius:11px;background:var(--mint-soft);color:#16816d;font-weight:900}.platform-card:nth-child(2) .platform-icon{background:var(--coral-soft);color:#cc6347}.platform-card p{margin:7px 0 16px;color:var(--muted);font-size:13px}.platform-card .btn{width:100%;min-height:40px;padding:8px 10px;font-size:13px}.safe-line{grid-column:1/-1;display:flex;gap:10px;align-items:flex-start;padding:13px 15px;border-radius:10px;background:rgba(255,255,255,.65);color:var(--muted);font-size:12px}.safe-line b{color:var(--purple)}
.topic-grid{display:grid;grid-template-columns:1.16fr .9fr .94fr;gap:16px}.topic-card{min-height:230px;padding:28px;border-radius:var(--radius);color:#fff;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;transition:.22s ease}.topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.topic-card:first-child{background:var(--purple)}.topic-card:nth-child(2){background:#3d3a46}.topic-card:nth-child(3){background:var(--mint);color:#143b35}.topic-card p{margin:7px 0 18px;max-width:280px;color:rgba(255,255,255,.82);font-size:14px;line-height:1.6}.topic-card:nth-child(3) p{color:#245b50}.topic-meta{margin-bottom:auto;font-size:12px;font-weight:800;opacity:.8}.topic-card .text-link{font-size:14px;font-weight:850}.text-link:after{content:" →";margin-left:4px}
.safety{background:var(--mint-soft)}.safety-grid{display:grid;grid-template-columns:220px 1fr;gap:46px;align-items:center}.shield{width:154px;height:174px;margin:auto;clip-path:polygon(50% 0,91% 17%,85% 72%,50% 100%,15% 72%,9% 17%);background:var(--mint);display:grid;place-items:center;box-shadow:inset 0 -10px 0 rgba(0,0,0,.09)}.shield:before{content:"✓";width:76px;height:76px;border:3px solid #fff;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:42px;font-weight:850}.safety-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.safety-item{padding:4px 10px}.safety-item b{display:block;margin-bottom:7px;font-size:15px}.safety-item p{margin:0;color:#55716c;font-size:13px;line-height:1.7}
.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:150px 1fr auto;gap:24px;align-items:center;padding:23px 12px;border-bottom:1px solid var(--line);background:transparent;transition:.2s ease}.news-item:hover{padding-left:20px;background:#fff;box-shadow:var(--shadow)}.news-meta{display:flex;flex-direction:column;gap:8px}.news-meta time{color:var(--faint);font-size:12px}.badge{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:7px;background:var(--purple-soft);color:var(--purple);font-size:12px;font-weight:850}.news-copy h3{margin:0 0 5px;font-size:18px}.news-copy p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}.news-arrow{display:grid;place-items:center;width:38px;height:38px;border:1px solid #d8d1ec;border-radius:50%;color:var(--purple);font-size:20px;transition:.2s ease}.news-item:hover .news-arrow{background:var(--purple);border-color:var(--purple);color:#fff}.empty-news{padding:48px 20px;text-align:center;border-bottom:1px solid var(--line);color:var(--muted)}.empty-news .empty-icon{display:grid;place-items:center;width:46px;height:46px;margin:0 auto 12px;border-radius:14px;background:var(--purple-soft);color:var(--purple);font-weight:900}
.timeline{position:relative;max-width:850px;margin:0 auto;padding-left:38px}.timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:#d9d1ee}.timeline-item{position:relative;padding:0 0 30px}.timeline-item:last-child{padding-bottom:0}.timeline-dot{position:absolute;left:-36px;top:5px;width:14px;height:14px;border:3px solid var(--canvas);border-radius:50%;background:var(--coral);box-shadow:0 0 0 2px var(--coral)}.timeline-item:nth-child(2) .timeline-dot{background:var(--mint);box-shadow:0 0 0 2px var(--mint)}.timeline-card{padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:#fff}.timeline-card header{display:flex;justify-content:space-between;gap:12px;margin-bottom:9px}.timeline-card strong{font-size:16px}.timeline-card time{color:var(--faint);font-size:12px}.timeline-card ul{margin:0;padding-left:18px;color:var(--muted);font-size:13px;line-height:1.85}
.faq-section{background:#fff;border-top:1px solid var(--line)}.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:52px}.faq-intro p{color:var(--muted)}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:19px 2px;border:0;background:transparent;color:var(--ink);font-weight:800;text-align:left}.faq-question span:last-child{color:var(--purple);font-size:20px;transition:.2s ease}.faq-answer{display:none;padding:0 34px 18px 2px;color:var(--muted);font-size:14px;line-height:1.8}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}.faq-item.open .faq-question{color:var(--purple)}
.final-cta{padding:62px 0}.final-box{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;padding:38px 42px;border-radius:var(--radius);background:#292733;color:#fff;overflow:hidden;position:relative}.final-box:after{content:"";position:absolute;right:-70px;top:-130px;width:330px;height:330px;border:38px solid rgba(118,86,215,.45);border-radius:50%}.final-box h2{position:relative;z-index:1;margin-bottom:9px}.final-box p{position:relative;z-index:1;margin:0;color:#cac5d7}.final-actions{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mini-action{padding:15px 12px;border:1px solid rgba(255,255,255,.14);border-radius:12px;background:rgba(255,255,255,.06);font-size:13px;font-weight:800;text-align:center;transition:.2s ease}.mini-action:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}.mini-action i{display:block;margin-bottom:4px;color:#9ce8d9;font-style:normal;font-size:18px}
.site-footer{background:#24242b;color:#eeeaf4;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:13px;font-size:16px;font-weight:850}.footer-brand .brand-mark{transform:scale(.85);transform-origin:left center}.site-footer p{margin:0;color:#bcb8c5;font-size:13px;line-height:1.75}.footer-col h3{margin-bottom:13px;color:#fff;font-size:14px}.footer-col a{display:block;margin:8px 0;color:#c5c1ce;font-size:13px;transition:.2s ease}.footer-col a:hover{color:#a995f1;padding-left:3px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#96919f;font-size:12px}
@media (max-width:1024px){
  .container{width:min(var(--container),calc(100% - 48px))}
  .brand{min-width:auto;font-size:13px}.desktop-nav{gap:0}.desktop-nav a{padding:8px 8px;font-size:13px}
  .hero-grid,.download-grid{gap:28px}.trial-grid,.faq-grid{gap:30px}.ability-item{padding:20px 13px}.news-item{grid-template-columns:128px 1fr auto}
}
@media (max-width:767px){
  .container{width:calc(100% - 32px)}
  .header-inner{height:68px}.brand{max-width:245px;font-size:12px;line-height:1.25}.brand-mark{flex:0 0 31px;width:31px;height:31px}.desktop-nav,.header-actions .btn{display:none}.menu-toggle{display:grid;place-items:center}.mobile-nav.show{display:block}
  .section{padding:58px 0}.section-tight{padding:34px 0}
  .hero{padding:35px 0 42px;background:linear-gradient(165deg,#f8f6f0 0%,#f8f6f0 58%,#eeeaf8 58%,#eeeaf8 100%)}.hero-grid,.trial-grid,.demo-grid,.download-grid,.safety-grid,.faq-grid,.final-box{grid-template-columns:1fr}.hero-copy{padding:0}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn{padding:10px 8px}.device-stage{min-height:370px;margin-top:5px}.device{transform:scale(.87)}.float-tag{font-size:11px}.tag-one{left:0}.tag-two{right:0}
  .ability-grid{grid-template-columns:1fr 1fr}.ability-item{padding:18px 12px;border-bottom:1px solid rgba(255,255,255,.13)}.ability-item:nth-child(2){border-right:0}
  .trial-matrix{margin-top:5px}.entry-card:nth-child(2),.entry-card:nth-child(4){transform:translateY(14px)}.entry-card:nth-child(2):hover,.entry-card:nth-child(4):hover{transform:translateY(10px)}
  .flow-head{display:block;margin-bottom:28px}.flow-head p{margin-top:10px}.flow{grid-template-columns:1fr 1fr;gap:26px}.flow:before{display:none}.flow-step{padding-right:6px}
  .compat-wrap{padding:13px;overflow-x:auto}.compat-table{min-width:620px}.download-panel{grid-template-columns:1fr}.safe-line{grid-column:auto}.topic-grid{grid-template-columns:1fr}.topic-card{min-height:185px}.safety-grid{gap:24px}.shield{width:120px;height:138px}.safety-list{grid-template-columns:1fr;gap:8px}.news-item{grid-template-columns:1fr auto;gap:12px;padding:19px 4px}.news-meta{grid-column:1/-1;flex-direction:row;align-items:center}.news-copy h3{font-size:16px}.news-arrow{grid-column:2;grid-row:2}.timeline{padding-left:28px}.timeline-dot{left:-26px}.final-box{padding:30px 23px}.final-actions{grid-template-columns:1fr 1fr}.mini-action:last-child{grid-column:1/-1}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
}
@media (max-width:520px){
  h1{font-size:35px}.lead{font-size:15px}.hero-actions{grid-template-columns:1fr}.hero-actions .btn{width:100%}.trial-matrix{gap:10px}.entry-card{min-height:142px;padding:16px}.entry-card h3{font-size:15px}.entry-card p{font-size:12px}.ability-grid{grid-template-columns:1fr}.ability-item{border-right:0}.flow{grid-template-columns:1fr}.console{padding:18px}.console-main{min-height:210px;padding:18px}.console-main strong{font-size:24px}.topic-card{padding:22px}.footer-grid{grid-template-columns:1fr}.footer-col{padding-top:4px}
}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{
      --purple:#7656D7;--purple-dark:#6041bf;--purple-soft:#eeeaf8;
      --mint:#35bfa4;--mint-soft:#e7f5f0;--coral:#f47c5b;--coral-soft:#fff0eb;
      --ink:#24242b;--text:#494853;--muted:#696875;--faint:#91909b;
      --canvas:#f6f4ef;--white:#fff;--line:#e4e0da;
      --shadow:0 12px 32px rgba(73,55,129,.09);--shadow-hover:0 18px 38px rgba(73,55,129,.14);
      --radius:20px;--radius-sm:14px;--container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(228,224,218,.92);backdrop-filter:blur(12px)}
    .header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:260px;font-size:15px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
    .brand-mark{position:relative;width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--purple);box-shadow:inset 0 -3px 0 rgba(0,0,0,.12)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:2px}
    .brand-mark:before{width:16px;height:5px;left:9px;top:14px}
    .brand-mark:after{width:5px;height:16px;left:14px;top:9px}
    .desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px}
    .desktop-nav a{padding:9px 11px;border-radius:9px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s ease}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--purple);background:var(--purple-soft)}
    .header-actions{display:flex;align-items:center;gap:10px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.desktop-nav a:focus-visible,.mobile-nav a:focus-visible,.faq-question:focus-visible,.content-card a:focus-visible{outline:3px solid rgba(53,191,164,.42);outline-offset:3px}
    .btn-primary{background:var(--purple);color:#fff;box-shadow:0 7px 16px rgba(118,86,215,.22)}
    .btn-primary:hover{background:var(--purple-dark);box-shadow:0 10px 22px rgba(96,65,191,.28)}
    .btn-outline{background:#fff;border-color:#cfc5ef;color:var(--purple)}
    .btn-outline:hover{background:var(--purple-soft);border-color:var(--purple)}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--purple);font-size:20px}
    .mobile-nav{display:none;padding:0 16px 16px;border-top:1px solid var(--line)}
    .mobile-nav a{display:block;padding:12px 8px;border-bottom:1px solid #eeeae5;color:var(--text);font-size:15px;font-weight:750}
    .mobile-nav a.active{color:var(--purple)}
    .mobile-nav .btn{margin-top:14px;width:100%}
    main{overflow:hidden}
    .section{padding:84px 0}
    .section-soft{background:var(--purple-soft)}
    .section-mint{background:var(--mint-soft)}
    .section-white{background:var(--white)}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;margin-bottom:12px;color:var(--purple);font-size:13px;font-weight:850;letter-spacing:.06em}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px var(--mint-soft)}
    .section-heading{max-width:720px;margin-bottom:34px}
    .section-heading h2{margin:0 0 12px;font-size:31px;line-height:1.28;letter-spacing:-.04em}
    .section-heading p{margin:0;color:var(--muted);font-size:16px}
    .breadcrumbs{display:flex;align-items:center;gap:10px;padding-top:29px;color:var(--faint);font-size:13px}
    .breadcrumbs a{transition:color .2s ease}
    .breadcrumbs a:hover{color:var(--purple)}
    .breadcrumb-divider{color:#b4b0ba}
    .category-hero{position:relative;padding:40px 0 70px;background:linear-gradient(114deg,#f7f5ef 0%,#f7f5ef 72%,#eeeaf8 72%)}
    .category-hero:after{content:"";position:absolute;right:6%;bottom:28px;width:156px;height:156px;opacity:.55;background-image:radial-gradient(rgba(118,86,215,.28) 1.4px,transparent 1.4px);background-size:13px 13px}
    .category-hero-inner{position:relative;z-index:1;max-width:800px;padding-top:36px}
    .category-hero h1{margin:0 0 18px;font-size:46px;line-height:1.15;letter-spacing:-.055em}
    .category-hero p{max-width:735px;margin:0;color:var(--muted);font-size:17px;line-height:1.9}
    .tag-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
    .tag{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border:1px solid #ddd7eb;border-radius:9px;background:#fff;color:var(--text);font-size:12px;font-weight:800}
    .tag:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--purple)}
    .tag.mint:before{background:var(--mint)}
    .tag.coral:before{background:var(--coral)}
    .guide-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .guide-link{display:flex;align-items:center;gap:12px;min-height:74px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--text);font-size:14px;font-weight:800;transition:.22s ease}
    .guide-link:hover{border-color:#cfc5ef;box-shadow:var(--shadow);transform:translateY(-3px);color:var(--purple)}
    .guide-number{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--purple-soft);color:var(--purple);font-size:12px;font-weight:900}
    .feature-layout{display:grid;grid-template-columns:1fr .92fr;gap:70px;align-items:center}
    .feature-copy h2{margin:0 0 16px;font-size:32px;line-height:1.28;letter-spacing:-.04em}
    .feature-copy>p{margin:0;color:var(--muted)}
    .feature-points{display:grid;gap:14px;margin:27px 0 0;padding:0;list-style:none}
    .feature-points li{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);color:var(--text);font-size:14px;font-weight:650}
    .feature-points li:last-child{border-bottom:0}
    .point-icon{display:grid;place-items:center;width:27px;height:27px;flex:0 0 27px;border-radius:8px;background:var(--mint-soft);color:#198875;font-size:14px}
    .demo-board{position:relative;min-height:355px;padding:22px;border:1px solid #d8d0ee;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden}
    .demo-board:before{content:"";position:absolute;right:-30px;top:-34px;width:175px;height:175px;border-radius:50%;background:var(--purple-soft)}
    .demo-top{position:relative;display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
    .demo-top b{font-size:14px}
    .status-dot{display:inline-flex;align-items:center;gap:6px;color:#218d7a;font-size:12px;font-weight:800}
    .status-dot:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint)}
    .preview-window{position:relative;height:178px;padding:17px;border-radius:15px;background:linear-gradient(135deg,#3c3165,#7656d7);overflow:hidden}
    .preview-window:after{content:"";position:absolute;right:18px;bottom:-18px;width:112px;height:112px;border:12px solid rgba(255,255,255,.15);border-radius:50%}
    .preview-title{position:relative;color:#fff;font-size:16px;font-weight:850}
    .preview-sub{position:relative;margin-top:4px;color:#dcd5f4;font-size:12px}
    .game-bars{position:relative;display:grid;gap:9px;margin-top:25px}
    .game-bars span{display:block;height:10px;border-radius:99px;background:rgba(255,255,255,.22)}
    .game-bars span:nth-child(1){width:74%}.game-bars span:nth-child(2){width:49%}.game-bars span:nth-child(3){width:63%}
    .control-row{display:flex;align-items:center;justify-content:space-between;padding:18px 4px 0}
    .dpad{position:relative;width:52px;height:52px}
    .dpad i,.dpad:before,.dpad:after{content:"";position:absolute;background:var(--purple);border-radius:4px}
    .dpad i{left:18px;top:0;width:16px;height:52px}.dpad:before{left:0;top:18px;width:52px;height:16px}.dpad:after{display:none}
    .round-keys{display:flex;gap:8px}.round-keys i{width:22px;height:22px;border-radius:50%;background:var(--coral)}.round-keys i:last-child{background:var(--mint)}
    .content-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:20px}
    .content-card{position:relative;padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 4px 15px rgba(73,55,129,.035);transition:.22s ease}
    .content-card:hover{transform:translateY(-4px);border-color:#d5c9f4;box-shadow:var(--shadow-hover)}
    .content-card.large{grid-row:span 2;padding:30px}
    .content-meta{display:flex;align-items:center;gap:10px;margin-bottom:15px;color:var(--faint);font-size:12px;font-weight:700}
    .content-meta strong{padding:4px 8px;border-radius:7px;background:var(--purple-soft);color:var(--purple);font-size:11px}
    .content-card h3{margin:0 0 10px;font-size:21px;line-height:1.4;letter-spacing:-.025em}
    .content-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .article-link{display:inline-flex;align-items:center;gap:8px;margin-top:20px;color:var(--purple);font-size:14px;font-weight:850}
    .article-link span{font-size:18px;transition:transform .2s ease}
    .article-link:hover span{transform:translateX(4px)}
    .more-wrap{text-align:center;margin-top:29px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:16px}
    .steps:before{content:"";position:absolute;left:11%;right:11%;top:36px;height:2px;background:linear-gradient(90deg,var(--mint),#d2eadf,var(--purple))}
    .step{position:relative;padding:0 10px;text-align:center}
    .step-number{position:relative;z-index:1;display:grid;place-items:center;width:70px;height:70px;margin:0 auto 17px;border:6px solid var(--mint-soft);border-radius:50%;background:#fff;color:var(--purple);font-size:18px;font-weight:900}
    .step h3{margin:0 0 7px;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .info-panel{display:grid;grid-template-columns:.85fr 1.15fr;overflow:hidden;border:1px solid #cce7df;border-radius:var(--radius);background:#fff}
    .panel-label{padding:34px;background:var(--mint-soft)}
    .panel-label h2{margin:0 0 10px;font-size:28px;line-height:1.3}
    .panel-label p{margin:0;color:#47776d;font-size:14px}
    .info-list{padding:18px 28px}
    .info-row{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}
    .info-row:last-child{border-bottom:0}
    .info-row strong{color:var(--text)}
    .info-row span{color:var(--muted)}
    .notice{display:flex;align-items:flex-start;gap:13px;margin-top:26px;padding:16px 18px;border:1px solid #f6d3c9;border-radius:var(--radius-sm);background:var(--coral-soft);color:#755048;font-size:14px}
    .notice-icon{display:grid;place-items:center;width:26px;height:26px;flex:0 0 26px;border-radius:8px;background:var(--coral);color:#fff;font-weight:900}
    .faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:62px;align-items:start}
    .faq-side h2{margin:0 0 15px;font-size:32px;line-height:1.3;letter-spacing:-.04em}
    .faq-side p{margin:0;color:var(--muted)}
    .faq-list{display:grid;gap:11px}
    .faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;overflow:hidden}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;border:0;background:#fff;color:var(--ink);text-align:left;font-size:15px;font-weight:850}
    .faq-question span:last-child{color:var(--purple);font-size:22px;font-weight:400;transition:transform .2s ease}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
    .faq-item.open .faq-answer{display:block}
    .cta-band{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:39px 42px;border-radius:var(--radius);background:var(--ink);color:#fff;box-shadow:var(--shadow)}
    .cta-band h2{margin:0 0 8px;font-size:28px;line-height:1.3}
    .cta-band p{margin:0;color:#c9c7d0;font-size:14px}
    .cta-band .btn-outline{border-color:#bcaefa;background:transparent;color:#fff}
    .cta-band .btn-outline:hover{background:var(--purple);border-color:var(--purple)}
    .site-footer{padding:58px 0 22px;background:var(--ink);color:#f6f4ef}
    .footer-grid{display:grid;grid-template-columns:1.55fr repeat(3,1fr);gap:38px;padding-bottom:42px}
    .footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:850}
    .footer-brand .brand-mark{width:30px;height:30px;flex-basis:30px;border-radius:9px}
    .footer-brand .brand-mark:before{width:14px;height:4px;left:8px;top:13px}
    .footer-brand .brand-mark:after{width:4px;height:14px;left:13px;top:8px}
    .site-footer p{max-width:290px;margin:14px 0 0;color:#bbb8c2;font-size:13px;line-height:1.75}
    .footer-col h3{margin:0 0 13px;color:#fff;font-size:14px}
    .footer-col a{display:block;margin:8px 0;color:#bbb8c2;font-size:13px;transition:color .2s ease}
    .footer-col a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:21px;border-top:1px solid rgba(255,255,255,.13);color:#96939d;font-size:12px}
    @media (max-width:1024px){
      .brand{min-width:auto}.desktop-nav a{padding:8px}.category-hero h1{font-size:40px}
      .guide-nav{grid-template-columns:repeat(2,1fr)}.feature-layout,.faq-layout{gap:38px}
      .content-grid{grid-template-columns:1fr 1fr}.content-card.large{grid-row:auto}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2/4}
    }
    @media (max-width:767px){
      .container{width:min(100% - 32px,var(--container))}.header-inner{height:68px}.desktop-nav{display:none}.brand{font-size:13px}.header-actions .btn{display:none}.menu-toggle{display:block}
      .mobile-nav.show{display:block}.section{padding:60px 0}.breadcrumbs{padding-top:20px}.category-hero{padding:22px 0 54px;background:#f7f5ef}.category-hero:after{width:105px;height:105px;right:2%;bottom:15px}
      .category-hero-inner{padding-top:24px}.category-hero h1{font-size:34px}.category-hero p{font-size:15px}.section-heading h2,.feature-copy h2,.faq-side h2{font-size:27px}
      .guide-nav,.feature-layout,.content-grid,.steps,.info-panel,.faq-layout,.footer-grid{grid-template-columns:1fr}.guide-link{min-height:64px}.feature-layout{gap:28px}.demo-board{min-height:315px}.content-card,.content-card.large{padding:23px}.steps{gap:28px}.steps:before{top:0;bottom:0;left:35px;right:auto;width:2px;height:auto;background:linear-gradient(var(--mint),var(--purple))}
      .step{display:grid;grid-template-columns:70px 1fr;gap:15px;padding:0;text-align:left}.step-number{margin:0}.step h3{padding-top:4px}.step p{grid-column:2}.panel-label,.info-list{padding:25px}.info-row{grid-template-columns:1fr;gap:3px}.faq-layout{gap:28px}.cta-band{grid-template-columns:1fr;padding:29px 25px}.cta-band .btn{width:100%}.footer-grid{gap:27px}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:5px}
    }
    @media (max-width:520px){
      .tag-row{gap:7px}.tag{font-size:11px}.section-heading{margin-bottom:26px}.category-hero h1{font-size:30px}.content-card h3{font-size:19px}.preview-window{height:158px}.cta-band h2{font-size:24px}
    }
    @media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: article */
:root{
  --purple:#7656D7;
  --purple-dark:#6041bf;
  --purple-soft:#eeeaf8;
  --mint:#35bfa4;
  --mint-soft:#e7f5f0;
  --coral:#f47c5b;
  --coral-soft:#fff0eb;
  --ink:#24242b;
  --text:#494853;
  --muted:#696875;
  --faint:#91909b;
  --canvas:#f6f4ef;
  --white:#fff;
  --line:#e4e0da;
  --shadow:0 12px 32px rgba(73,55,129,.09);
  --shadow-hover:0 18px 38px rgba(73,55,129,.14);
  --radius:20px;
  --radius-sm:14px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.78}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(228,224,218,.92);backdrop-filter:blur(12px)}
.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:260px;font-size:15px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.brand-mark{position:relative;width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--purple);box-shadow:inset 0 -3px 0 rgba(0,0,0,.12)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:2px}
.brand-mark:before{width:16px;height:5px;left:9px;top:14px}
.brand-mark:after{width:5px;height:16px;left:14px;top:9px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px}
.desktop-nav a{position:relative;padding:9px 11px;border-radius:9px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s ease}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--purple);background:var(--purple-soft)}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.desktop-nav a:focus-visible,.mobile-nav a:focus-visible,.faq-question:focus-visible,.article-body a:focus-visible{outline:3px solid rgba(53,191,164,.42);outline-offset:3px}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 7px 16px rgba(118,86,215,.22)}
.btn-primary:hover{background:var(--purple-dark);box-shadow:0 10px 22px rgba(96,65,191,.28)}
.btn-outline{background:#fff;border-color:#cfc5ef;color:var(--purple)}
.btn-outline:hover{background:var(--purple-soft);border-color:var(--purple)}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--purple);font-size:20px}
.mobile-nav{display:none;padding:0 16px 16px;border-top:1px solid var(--line)}
.mobile-nav a{display:block;padding:12px 8px;border-bottom:1px solid #eeeae5;color:var(--text);font-size:15px;font-weight:750}
.mobile-nav .btn{margin-top:14px;width:100%}
main{overflow:hidden}
.article-hero{padding:38px 0 46px;background:linear-gradient(112deg,#f8f6f0 0%,#f8f6f0 68%,var(--purple-soft) 68%,var(--purple-soft) 100%);border-bottom:1px solid var(--line)}
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;color:var(--faint);font-size:13px;font-weight:650}
.breadcrumbs a{transition:color .2s ease}
.breadcrumbs a:hover{color:var(--purple)}
.breadcrumbs span:not(:last-child):after{content:"/";margin-left:9px;color:#c6c1bb}
.article-heading{max-width:875px;padding-top:26px}
.category-badge,.mini-tag{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:800}
.category-badge{background:var(--purple-soft);color:var(--purple)}
.category-badge:before,.mini-tag:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
.article-heading h1{margin:13px 0 15px;font-size:clamp(31px,4vw,50px);line-height:1.22;letter-spacing:-.055em;font-weight:800;color:var(--ink)}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;color:var(--muted);font-size:13px;font-weight:650}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{width:6px;height:6px;background:var(--mint);border-radius:50%;display:inline-block}
.section{padding:58px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 230px;justify-content:center;gap:54px;align-items:start}
.article-summary{padding:23px 26px;border:1px solid #ded7f2;border-radius:var(--radius-sm);background:var(--purple-soft);color:var(--text);font-size:16px;line-height:1.85}
.article-summary strong{display:block;margin-bottom:7px;color:var(--purple);font-size:13px;letter-spacing:.08em}
.article-body{padding:42px 52px;background:var(--white);border:1px solid #ebe7e1;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.article-body>*:first-child{margin-top:0}
.article-body h2{margin:48px 0 18px;padding-bottom:12px;border-bottom:1px solid var(--line);font-size:26px;line-height:1.38;letter-spacing:-.03em;color:var(--ink)}
.article-body h3{margin:32px 0 13px;font-size:20px;line-height:1.45;color:var(--ink)}
.article-body p{margin:0 0 21px;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 24px;padding-left:1.45em;color:var(--text)}
.article-body li{margin:9px 0;padding-left:4px}
.article-body a{color:var(--purple);font-weight:750;text-decoration:underline;text-decoration-color:#cfc5ef;text-underline-offset:3px}
.article-body blockquote{margin:28px 0;padding:18px 20px;border-left:4px solid var(--mint);border-radius:0 12px 12px 0;background:var(--mint-soft);color:#356e62}
.article-body img{margin:28px auto;border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 22px rgba(58,52,80,.08)}
.article-body table{width:100%;margin:28px 0;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;color:var(--text);font-size:14px}
.article-body th,.article-body td{padding:13px 15px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:#faf9f6;color:var(--ink)}
.article-body tr:last-child td{border-bottom:0}
.article-body pre,.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body pre{padding:18px;border-radius:12px;background:#2d2937;color:#f7f5ff;overflow:auto}
.article-body code{padding:2px 5px;border-radius:5px;background:var(--purple-soft);color:var(--purple);font-size:.9em}
.article-toc{position:sticky;top:104px;padding:20px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
.article-toc h2{margin:0 0 12px;font-size:14px;font-weight:850;color:var(--ink)}
.article-toc a{display:block;padding:8px 0;border-bottom:1px solid #efebe5;color:var(--muted);font-size:13px;line-height:1.45;transition:color .2s ease}
.article-toc a:last-child{border-bottom:0}
.article-toc a:hover{color:var(--purple)}
.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.notice-card{padding:20px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
.notice-card .notice-icon{width:37px;height:37px;display:grid;place-items:center;margin-bottom:12px;border-radius:10px;background:var(--purple-soft);color:var(--purple);font-weight:900}
.notice-card:nth-child(2) .notice-icon{background:var(--mint-soft);color:#218d78}
.notice-card:nth-child(3) .notice-icon{background:var(--coral-soft);color:#d45e42}
.notice-card h3{margin:0 0 6px;font-size:16px}
.notice-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.download-strip{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 30px;border:1px solid #d8cff5;border-radius:var(--radius);background:linear-gradient(120deg,#fff 0%,#f3effd 100%);box-shadow:var(--shadow)}
.download-copy{display:flex;align-items:flex-start;gap:15px}
.download-symbol{width:46px;height:46px;display:grid;place-items:center;flex:0 0 46px;border-radius:13px;background:var(--purple);color:#fff;font-size:23px;font-weight:900}
.download-copy h2{margin:0 0 4px;font-size:20px}
.download-copy p{margin:0;color:var(--muted);font-size:13px}
.download-facts{display:flex;gap:10px;flex-wrap:wrap;margin-top:9px}
.download-facts span{padding:3px 8px;border-radius:6px;background:var(--mint-soft);color:#217d6a;font-size:11px;font-weight:800}
.related-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
.related-head h2{margin:0;font-size:28px;letter-spacing:-.035em}
.related-head p{margin:4px 0 0;color:var(--muted);font-size:14px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{display:flex;flex-direction:column;min-height:235px;padding:22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:.22s ease}
.related-card:hover{transform:translateY(-4px);border-color:#d4c8f4;box-shadow:var(--shadow-hover)}
.mini-tag{align-self:flex-start;padding:4px 8px;background:var(--mint-soft);color:#287d6c;font-size:11px}
.related-card:nth-child(2) .mini-tag{background:var(--coral-soft);color:#c85a42}
.related-card:nth-child(3) .mini-tag{background:var(--purple-soft);color:var(--purple)}
.related-card h3{margin:16px 0 8px;font-size:18px;line-height:1.45}
.related-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.card-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:18px;color:var(--faint);font-size:12px;font-weight:700}
.card-arrow{color:var(--purple);font-size:20px;line-height:1}
.feedback-panel{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:34px 38px;border-radius:var(--radius);background:var(--ink);color:#fff;position:relative;overflow:hidden}
.feedback-panel:after{content:"";position:absolute;right:-30px;top:-70px;width:220px;height:220px;border:30px solid rgba(118,86,215,.35);border-radius:50%}
.feedback-panel h2{position:relative;margin:0 0 7px;font-size:25px;z-index:1}
.feedback-panel p{position:relative;max-width:650px;margin:0;color:#d5d1dc;font-size:14px;z-index:1}
.feedback-actions{position:relative;display:flex;gap:11px;flex-wrap:wrap;z-index:1}
.feedback-panel .btn-outline{border-color:#9381d5;background:transparent;color:#fff}
.feedback-panel .btn-outline:hover{background:rgba(255,255,255,.1)}
.site-footer{padding:62px 0 22px;background:var(--ink);color:#ece9e3}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;padding-bottom:42px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:16px;font-weight:850}
.footer-brand .brand-mark{width:31px;height:31px;flex-basis:31px}
.footer-brand .brand-mark:before{width:14px;height:4px;left:8px;top:13px}
.footer-brand .brand-mark:after{width:4px;height:14px;left:13px;top:8px}
.site-footer p{max-width:280px;margin:0;color:#bdb9c5;font-size:13px;line-height:1.75}
.footer-col h3{margin:0 0 13px;color:#fff;font-size:14px;font-weight:800}
.footer-col a{display:block;margin:8px 0;color:#bdb9c5;font-size:13px;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);color:#9994a3;font-size:12px}
@media (max-width:1024px){
  .container{width:min(var(--container),calc(100% - 48px))}
  .brand{min-width:auto}
  .desktop-nav a{padding:8px}
  .article-layout{grid-template-columns:minmax(0,760px)}
  .article-toc{position:static;display:flex;flex-wrap:wrap;gap:0 18px;padding:16px 20px}
  .article-toc h2{width:100%;margin-bottom:6px}
  .article-toc a{border-bottom:0;padding:5px 0}
  .notice-grid{grid-template-columns:1fr 1fr}
  .notice-card:last-child{grid-column:span 2}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{width:calc(100% - 32px)}
  .header-inner{height:68px;gap:12px}
  .brand{font-size:13px;white-space:nowrap}
  .brand-mark{width:31px;height:31px;flex-basis:31px}
  .brand-mark:before{width:14px;height:4px;left:8px;top:13px}
  .brand-mark:after{width:4px;height:14px;left:13px;top:8px}
  .desktop-nav,.header-actions .btn{display:none}
  .menu-toggle{display:block}
  .mobile-nav.open{display:block}
  .article-hero{padding:28px 0 34px;background:#f8f6f0}
  .article-heading{padding-top:20px}
  .article-heading h1{font-size:31px;line-height:1.3}
  .article-meta{gap:7px 14px}
  .section{padding:42px 0}
  .article-summary{padding:20px}
  .article-body{padding:28px 21px;border-radius:15px}
  .article-body h2{margin-top:37px;font-size:23px}
  .article-body h3{font-size:18px}
  .article-body table{display:block;overflow-x:auto}
  .notice-grid,.related-grid{grid-template-columns:1fr}
  .notice-card:last-child{grid-column:auto}
  .download-strip{display:block;padding:24px}
  .download-strip .btn{width:100%;margin-top:18px}
  .related-head{display:block}
  .related-head h2{font-size:25px}
  .feedback-panel{display:block;padding:29px 25px}
  .feedback-panel h2{font-size:22px}
  .feedback-actions{margin-top:20px}
  .feedback-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px 22px}
  .footer-grid>div:first-child{grid-column:span 2}
  .footer-bottom{display:block;line-height:1.9}
}
@media (max-width:520px){
  .breadcrumbs{font-size:12px}
  .article-heading h1{font-size:28px}
  .article-body{padding:24px 17px}
  .article-body h2{font-size:21px}
  .article-meta{font-size:12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid>div:first-child{grid-column:auto}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
      --purple:#7656D7;
      --purple-dark:#6041bf;
      --purple-soft:#eeeaf8;
      --mint:#35bfa4;
      --mint-soft:#e7f5f0;
      --coral:#f47c5b;
      --coral-soft:#fff0eb;
      --ink:#24242b;
      --text:#494853;
      --muted:#696875;
      --faint:#91909b;
      --canvas:#f6f4ef;
      --white:#fff;
      --line:#e4e0da;
      --shadow:0 12px 32px rgba(73,55,129,.09);
      --shadow-hover:0 18px 38px rgba(73,55,129,.14);
      --radius:20px;
      --radius-sm:14px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(228,224,218,.92);backdrop-filter:blur(12px)}
    .header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:260px;font-size:15px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
    .brand-mark{position:relative;flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:var(--purple);box-shadow:inset 0 -3px 0 rgba(0,0,0,.12)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:2px}
    .brand-mark:before{width:16px;height:5px;left:9px;top:14px}
    .brand-mark:after{width:5px;height:16px;left:14px;top:9px}
    .desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px}
    .desktop-nav a{padding:9px 11px;border-radius:9px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s ease}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--purple);background:var(--purple-soft)}
    .header-actions{display:flex;align-items:center;gap:10px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.desktop-nav a:focus-visible,.mobile-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(53,191,164,.42);outline-offset:3px}
    .btn-primary{background:var(--purple);color:#fff;box-shadow:0 7px 16px rgba(118,86,215,.22)}
    .btn-primary:hover{background:var(--purple-dark);box-shadow:0 10px 22px rgba(96,65,191,.28)}
    .btn-outline{background:#fff;border-color:#cfc5ef;color:var(--purple)}
    .btn-outline:hover{background:var(--purple-soft);border-color:var(--purple)}
    .btn-mint{background:var(--mint);color:#fff;box-shadow:0 7px 16px rgba(53,191,164,.19)}
    .btn-mint:hover{background:#259f88}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--purple);font-size:20px}
    .mobile-nav{display:none;padding:0 16px 16px;border-top:1px solid var(--line)}
    .mobile-nav a{display:block;padding:12px 8px;border-bottom:1px solid #eeeae5;color:var(--text);font-size:15px;font-weight:750}
    .mobile-nav .btn{margin-top:14px;width:100%}
    main{overflow:hidden}
    .section{padding:82px 0}
    .section-soft{background:var(--purple-soft)}
    .section-white{background:var(--white)}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;margin-bottom:12px;color:var(--purple);font-size:13px;font-weight:850;letter-spacing:.06em}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px var(--mint-soft)}
    .section-heading{max-width:760px;margin-bottom:34px}
    .section-heading h2{margin:0 0 12px;font-size:30px;line-height:1.28;letter-spacing:-.04em}
    .section-heading p{margin:0;color:var(--muted);font-size:16px;line-height:1.85}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:20px;color:var(--faint);font-size:13px}
    .breadcrumb span:not(:last-child):after{content:"/";margin-left:8px;color:#b4b1bc}
    .category-hero{padding:58px 0 64px;background:linear-gradient(135deg,#f7f4ed 0%,#f7f4ed 62%,#eeeaf8 62%,#eeeaf8 100%);border-bottom:1px solid var(--line)}
    .hero-shell{position:relative;max-width:850px}
    .hero-shell:after{content:"";position:absolute;right:-220px;top:-80px;width:220px;height:220px;background-image:radial-gradient(rgba(118,86,215,.22) 1px,transparent 1px);background-size:11px 11px}
    h1{position:relative;margin:0 0 16px;font-size:45px;line-height:1.16;letter-spacing:-.055em}
    .hero-copy{position:relative;max-width:780px;margin:0;color:var(--muted);font-size:17px;line-height:1.9}
    .tag-row{position:relative;display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .tag{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border:1px solid #dcd4f4;border-radius:9px;background:#fff;color:var(--text);font-size:13px;font-weight:750}
    .tag:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--purple)}
    .tag.mint:before{background:var(--mint)}
    .tag.coral:before{background:var(--coral)}
    .anchor-nav{display:flex;flex-wrap:wrap;gap:12px}
    .anchor-nav a{display:inline-flex;align-items:center;gap:8px;padding:13px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text);font-size:14px;font-weight:800;box-shadow:0 4px 12px rgba(73,55,129,.04);transition:.2s ease}
    .anchor-nav a:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint)}
    .anchor-nav a:hover{border-color:#cfc5ef;color:var(--purple);transform:translateY(-2px)}
    .feature-layout{display:grid;grid-template-columns:1.02fr .98fr;gap:58px;align-items:center}
    .feature-copy h2{margin:0 0 16px;font-size:32px;line-height:1.3;letter-spacing:-.04em}
    .feature-copy p{margin:0 0 19px;color:var(--muted)}
    .check-list{padding:0;margin:26px 0 0;list-style:none}
    .check-list li{position:relative;padding:11px 0 11px 31px;border-bottom:1px solid var(--line);color:var(--text);font-size:15px}
    .check-list li:before{content:"✓";position:absolute;left:0;top:10px;width:21px;height:21px;display:grid;place-items:center;border-radius:50%;background:var(--mint-soft);color:#16816d;font-size:12px;font-weight:900}
    .install-visual{min-height:390px;position:relative;padding:28px;border:1px solid #dbd4ed;border-radius:var(--radius);background:#f9f8fd;box-shadow:var(--shadow);overflow:hidden}
    .install-visual:before{content:"";position:absolute;right:-52px;bottom:-55px;width:185px;height:185px;border:28px solid rgba(118,86,215,.12);border-radius:50%}
    .mini-window{position:relative;padding:18px;border:1px solid #dfd9ee;border-radius:15px;background:#fff;box-shadow:0 10px 20px rgba(74,57,129,.07)}
    .window-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:19px}
    .window-title{font-size:14px;font-weight:850}
    .signal{display:flex;gap:4px}
    .signal i{width:7px;height:7px;border-radius:50%;background:var(--mint)}
    .signal i:nth-child(2){background:var(--coral)}
    .signal i:nth-child(3){background:var(--purple)}
    .file-panel{padding:16px;border-radius:12px;background:var(--purple-soft)}
    .file-icon{width:44px;height:48px;margin-bottom:11px;border-radius:8px 8px 12px 12px;background:var(--purple);position:relative}
    .file-icon:after{content:"";position:absolute;left:11px;bottom:11px;width:21px;height:4px;border-radius:4px;background:#fff;box-shadow:0 -8px 0 rgba(255,255,255,.72)}
    .file-panel strong{display:block;font-size:15px}
    .file-panel small{color:var(--muted)}
    .progress-line{height:8px;margin:18px 0 10px;border-radius:8px;background:#e6e1f1;overflow:hidden}
    .progress-line span{display:block;width:72%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--purple),#9b84e7)}
    .progress-meta{display:flex;justify-content:space-between;color:var(--faint);font-size:12px}
    .permission-panel{position:absolute;right:24px;bottom:26px;max-width:235px;padding:14px 15px;border-radius:13px;background:#fff;border:1px solid #d8eee8;box-shadow:var(--shadow)}
    .permission-panel b{display:block;margin-bottom:3px;font-size:13px;color:#1a7f6c}
    .permission-panel span{font-size:12px;color:var(--muted)}
    .article-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .article-stack{display:grid;gap:18px}
    .article-card{display:flex;flex-direction:column;min-height:198px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;box-shadow:0 4px 12px rgba(73,55,129,.035);transition:.22s ease}
    .article-card:hover{transform:translateY(-4px);border-color:#d5c9f2;box-shadow:var(--shadow-hover)}
    .article-card.featured{min-height:414px;justify-content:flex-end;background:linear-gradient(155deg,#fff 0%,#fff 48%,#eeeaf8 48%,#eeeaf8 100%)}
    .article-meta{display:flex;gap:10px;align-items:center;margin-bottom:13px;color:var(--faint);font-size:12px}
    .article-meta b{padding:4px 8px;border-radius:7px;background:var(--mint-soft);color:#177964;font-size:12px}
    .article-card h3{margin:0 0 10px;font-size:21px;line-height:1.4;letter-spacing:-.025em}
    .article-stack h3{font-size:17px}
    .article-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.72}
    .card-arrow{margin-top:auto;padding-top:17px;color:var(--purple);font-size:14px;font-weight:850}
    .more-line{margin-top:24px;text-align:right}
    .more-line a{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:14px;font-weight:850}
    .more-line a:hover{color:var(--purple-dark)}
    .steps-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
    .steps-grid:before{content:"";position:absolute;left:9%;right:9%;top:32px;height:2px;background:#dcd5ef}
    .step{position:relative;padding:0 16px 8px}
    .step-no{width:65px;height:65px;position:relative;z-index:1;display:grid;place-items:center;margin-bottom:19px;border:7px solid var(--canvas);border-radius:50%;background:var(--purple);color:#fff;font-size:17px;font-weight:900;box-shadow:0 0 0 1px #d8cef2}
    .step:nth-child(2) .step-no,.step:nth-child(4) .step-no{background:var(--mint)}
    .step:nth-child(3) .step-no{background:var(--coral)}
    .step h3{margin:0 0 7px;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .install-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;box-shadow:0 5px 14px rgba(73,55,129,.035)}
    .install-table{width:100%;min-width:700px;border-collapse:collapse}
    .install-table th,.install-table td{padding:17px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
    .install-table tr:last-child td{border-bottom:0}
    .install-table th{background:#fbfaf8;color:var(--muted);font-size:13px;font-weight:800}
    .install-table td{color:var(--text);font-size:14px}
    .state{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:7px;background:var(--mint-soft);color:#187b67;font-size:12px;font-weight:850}
    .state:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint)}
    .state.note{background:var(--coral-soft);color:#b5543e}
    .state.note:before{background:var(--coral)}
    .safety-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:34px;align-items:stretch}
    .safety-intro{padding:34px;border-radius:var(--radius);background:var(--mint-soft)}
    .shield{width:48px;height:54px;display:grid;place-items:center;margin-bottom:20px;border-radius:20px 20px 25px 25px;background:var(--mint);color:#fff;font-size:24px}
    .safety-intro h2{margin:0 0 10px;font-size:27px;line-height:1.35}
    .safety-intro p{margin:0;color:#437d71;font-size:15px}
    .notice-list{padding:16px 26px;border:1px solid #d8ebe5;border-radius:var(--radius);background:#fff}
    .notice{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
    .notice:last-child{border-bottom:0}
    .notice-num{width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;border-radius:9px;background:var(--purple-soft);color:var(--purple);font-size:13px;font-weight:900}
    .notice h3{margin:0 0 3px;font-size:15px}
    .notice p{margin:0;color:var(--muted);font-size:14px}
    .faq-wrap{max-width:900px}
    .faq-item{margin-bottom:12px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 21px;border:0;background:#fff;color:var(--ink);text-align:left;font-weight:850;font-size:16px}
    .faq-question span:last-child{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:var(--purple-soft);color:var(--purple);font-size:18px;transition:.2s ease}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);background:var(--purple);color:#fff}
    .faq-answer{display:none;padding:0 21px 20px;color:var(--muted);font-size:15px;line-height:1.82}
    .faq-item.open .faq-answer{display:block}
    .download-cta{padding:42px 48px;display:grid;grid-template-columns:1fr auto;gap:35px;align-items:center;border-radius:var(--radius);background:var(--ink);color:#fff;box-shadow:var(--shadow)}
    .download-cta .eyebrow{color:#cbbef9}
    .download-cta .eyebrow:before{background:var(--mint);box-shadow:0 0 0 4px rgba(53,191,164,.16)}
    .download-cta h2{margin:0 0 10px;font-size:30px;line-height:1.3}
    .download-cta p{max-width:700px;margin:0;color:#c9c7d0;font-size:15px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:10px}
    .site-footer{padding:58px 0 22px;background:var(--ink);color:#f4f2ed}
    .footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:13px;font-size:15px;font-weight:850}
    .footer-brand .brand-mark{width:29px;height:29px;flex-basis:29px;border-radius:8px}
    .footer-brand .brand-mark:before{width:14px;height:4px;left:8px;top:12px}
    .footer-brand .brand-mark:after{width:4px;height:14px;left:12px;top:8px}
    .site-footer p{max-width:300px;margin:0;color:#bcb9c4;font-size:13px;line-height:1.75}
    .footer-col h3{margin:0 0 12px;color:#fff;font-size:14px}
    .footer-col a{display:block;margin:7px 0;color:#bcb9c4;font-size:13px;transition:.2s ease}
    .footer-col a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:16px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#9e9ba8;font-size:12px}
    @media(max-width:1024px){
      .container{width:min(var(--container),calc(100% - 48px))}
      .brand{min-width:auto}
      .desktop-nav a{padding:8px 7px;font-size:13px}
      .feature-layout,.safety-grid{gap:35px}
      .steps-grid{grid-template-columns:repeat(3,1fr);gap:28px}
      .steps-grid:before{display:none}
      .step{padding:0}
      .step-no{border-color:var(--white)}
      .article-grid{grid-template-columns:1fr}
      .article-stack{grid-template-columns:1fr 1fr}
      .article-card.featured{min-height:300px}
    }
    @media(max-width:767px){
      .container{width:calc(100% - 32px)}
      .header-inner{height:68px;gap:10px}
      .brand{font-size:13px;white-space:nowrap}
      .brand-mark{width:31px;height:31px;flex-basis:31px}
      .brand-mark:before{width:14px;left:8px;top:13px}
      .brand-mark:after{height:14px;left:13px;top:8px}
      .desktop-nav,.header-actions .btn{display:none}
      .menu-toggle{display:block}
      .mobile-nav.is-open{display:block}
      .category-hero{padding:42px 0 48px;background:#f7f4ed}
      h1{font-size:34px}
      .hero-copy{font-size:16px}
      .section{padding:60px 0}
      .section-heading h2,.feature-copy h2{font-size:26px}
      .feature-layout,.safety-grid{grid-template-columns:1fr;gap:28px}
      .install-visual{min-height:325px;padding:20px}
      .permission-panel{right:16px;bottom:17px;max-width:210px}
      .article-stack{grid-template-columns:1fr}
      .article-card.featured{min-height:280px}
      .steps-grid{grid-template-columns:1fr 1fr;gap:30px 22px}
      .download-cta{grid-template-columns:1fr;padding:31px 25px;gap:24px}
      .download-cta h2{font-size:25px}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 22px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{flex-direction:column}
    }
    @media(max-width:520px){
      .brand span:last-child{max-width:205px;overflow:hidden;text-overflow:ellipsis}
      .section-heading{margin-bottom:26px}
      .tag-row{gap:7px}
      .tag{font-size:12px}
      .anchor-nav{display:grid;grid-template-columns:1fr 1fr;gap:9px}
      .anchor-nav a{justify-content:center;padding:11px 7px;font-size:13px}
      .steps-grid{grid-template-columns:1fr}
      .step{display:grid;grid-template-columns:64px 1fr;column-gap:14px;align-items:start}
      .step-no{grid-row:span 2;margin:0}
      .step h3{padding-top:5px}
      .step p{grid-column:2}
      .install-table th,.install-table td{padding:14px}
      .faq-question{padding:16px;font-size:15px}
      .faq-answer{padding:0 16px 17px;font-size:14px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }
    @media(prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}
    }

/* roulang page: category2 */
:root{
      --purple:#7656D7;
      --purple-dark:#6041bf;
      --purple-soft:#eeeaf8;
      --mint:#35bfa4;
      --mint-soft:#e7f5f0;
      --coral:#f47c5b;
      --coral-soft:#fff0eb;
      --ink:#24242b;
      --text:#494853;
      --muted:#696875;
      --faint:#91909b;
      --canvas:#f6f4ef;
      --white:#fff;
      --line:#e4e0da;
      --shadow:0 12px 32px rgba(73,55,129,.09);
      --shadow-hover:0 18px 38px rgba(73,55,129,.14);
      --radius:20px;
      --radius-sm:14px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--canvas);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.96);
      border-bottom:1px solid rgba(228,224,218,.92);
      backdrop-filter:blur(12px);
    }
    .header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:11px;
      min-width:260px;
      font-size:15px;
      font-weight:800;
      letter-spacing:-.02em;
      color:var(--ink);
    }
    .brand-mark{
      position:relative;
      width:34px;
      height:34px;
      flex:0 0 34px;
      border-radius:10px;
      background:var(--purple);
      box-shadow:inset 0 -3px 0 rgba(0,0,0,.12);
    }
    .brand-mark:before,.brand-mark:after{
      content:"";
      position:absolute;
      background:#fff;
      border-radius:2px;
    }
    .brand-mark:before{width:16px;height:5px;left:9px;top:14px}
    .brand-mark:after{width:5px;height:16px;left:14px;top:9px}
    .desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px}
    .desktop-nav a{
      position:relative;
      padding:9px 11px;
      border-radius:9px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:.2s ease;
      white-space:nowrap;
    }
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--purple);background:var(--purple-soft)}
    .header-actions{display:flex;align-items:center;gap:10px}
    .btn{
      min-height:46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:10px 18px;
      border:1px solid transparent;
      border-radius:10px;
      font-size:14px;
      font-weight:800;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.desktop-nav a:focus-visible,.mobile-nav a:focus-visible,.faq-question:focus-visible,.content-nav a:focus-visible{
      outline:3px solid rgba(53,191,164,.42);
      outline-offset:3px;
    }
    .btn-primary{background:var(--purple);color:#fff;box-shadow:0 7px 16px rgba(118,86,215,.22)}
    .btn-primary:hover{background:var(--purple-dark);box-shadow:0 10px 22px rgba(96,65,191,.28)}
    .btn-outline{background:#fff;border-color:#cfc5ef;color:var(--purple)}
    .btn-outline:hover{background:var(--purple-soft);border-color:var(--purple)}
    .btn-mint{background:var(--mint);color:#fff;box-shadow:0 7px 16px rgba(53,191,164,.19)}
    .btn-mint:hover{background:#259f88}
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      color:var(--purple);
      font-size:20px;
    }
    .mobile-nav{display:none;padding:0 16px 16px;border-top:1px solid var(--line)}
    .mobile-nav a{
      display:block;
      padding:12px 8px;
      border-bottom:1px solid #eeeae5;
      color:var(--text);
      font-size:15px;
      font-weight:750;
    }
    .mobile-nav a.active{color:var(--purple)}
    .mobile-nav .btn{margin-top:14px;width:100%}
    main{overflow:hidden}
    .section{padding:82px 0}
    .section-tight{padding:48px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-bottom:12px;
      color:var(--purple);
      font-size:13px;
      font-weight:850;
      letter-spacing:.06em;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 4px var(--mint-soft);
    }
    .section-title{max-width:760px;margin-bottom:32px}
    .section-title h2{
      margin:0 0 12px;
      color:var(--ink);
      font-size:clamp(25px,3vw,36px);
      line-height:1.28;
      letter-spacing:-.045em;
      font-weight:800;
    }
    .section-title p{margin:0;color:var(--muted);font-size:16px;line-height:1.85}
    .crumb-row{
      display:flex;
      align-items:center;
      gap:9px;
      margin-bottom:22px;
      color:var(--faint);
      font-size:13px;
      font-weight:650;
    }
    .crumb-row a{transition:color .2s ease}
    .crumb-row a:hover{color:var(--purple)}
    .crumb-sep{color:#c0bcc7}
    .channel-hero{
      position:relative;
      padding:58px 0 62px;
      border-bottom:1px solid #e7e2dc;
      background:
        radial-gradient(circle at 85% 22%,rgba(118,86,215,.14) 0,rgba(118,86,215,.14) 1px,transparent 1.5px) 0 0/13px 13px,
        linear-gradient(115deg,#f8f6f0 0%,#f8f6f0 61%,#eeeaf8 61%,#eeeaf8 100%);
    }
    .channel-hero:after{
      content:"";
      position:absolute;
      right:10%;
      bottom:-35px;
      width:190px;
      height:190px;
      border:26px solid rgba(53,191,164,.18);
      border-radius:50%;
    }
    .channel-hero-inner{position:relative;z-index:1;max-width:860px}
    .channel-hero h1{
      max-width:760px;
      margin:0;
      color:var(--ink);
      font-size:clamp(35px,5vw,56px);
      line-height:1.14;
      letter-spacing:-.065em;
      font-weight:850;
    }
    .channel-hero .lead{
      max-width:760px;
      margin:18px 0 0;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
    }
    .channel-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:6px 11px;
      border:1px solid transparent;
      border-radius:9px;
      font-size:12px;
      font-weight:800;
      line-height:1.25;
    }
    .badge:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
    .badge-purple{background:var(--purple-soft);border-color:#ded4fa;color:var(--purple)}
    .badge-mint{background:var(--mint-soft);border-color:#cae8df;color:#168d76}
    .badge-coral{background:var(--coral-soft);border-color:#f9d7ce;color:#ca5a40}
    .content-nav{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:20px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:0 7px 22px rgba(73,55,129,.045);
    }
    .content-nav a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border:1px solid #e5e0f0;
      border-radius:10px;
      color:var(--text);
      background:#fff;
      font-size:14px;
      font-weight:750;
      transition:.2s ease;
    }
    .content-nav a:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:2px;
      background:var(--mint);
    }
    .content-nav a:hover{background:var(--purple-soft);border-color:#d5c8f5;color:var(--purple);transform:translateY(-2px)}
    .explain-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:56px;
      align-items:center;
    }
    .explain-copy h2{
      margin:0 0 17px;
      font-size:clamp(26px,3.2vw,39px);
      line-height:1.27;
      letter-spacing:-.045em;
      font-weight:850;
    }
    .explain-copy p{margin:0 0 18px;color:var(--muted)}
    .check-list{display:grid;gap:13px;margin:25px 0 0;padding:0;list-style:none}
    .check-list li{
      position:relative;
      padding:13px 15px 13px 43px;
      border:1px solid #e5e1dc;
      border-radius:12px;
      background:#fff;
      color:var(--text);
      font-size:14px;
      font-weight:650;
    }
    .check-list li:before{
      content:"✓";
      position:absolute;
      left:14px;
      top:11px;
      width:20px;
      height:20px;
      border-radius:6px;
      background:var(--mint-soft);
      color:#168d76;
      text-align:center;
      font-weight:900;
      line-height:20px;
    }
    .panel-illustration{
      position:relative;
      min-height:365px;
      overflow:hidden;
      padding:30px;
      border:1px solid #ddd5f0;
      border-radius:24px;
      background:linear-gradient(145deg,#f2eefb 0%,#e7f5f0 100%);
      box-shadow:var(--shadow);
    }
    .pixel-dots{
      position:absolute;
      top:17px;
      right:20px;
      width:105px;
      height:74px;
      opacity:.5;
      background-image:radial-gradient(var(--purple) 1.2px,transparent 1.4px);
      background-size:12px 12px;
    }
    .sim-window{
      position:relative;
      z-index:1;
      width:100%;
      max-width:475px;
      margin:14px auto 0;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.92);
      border-radius:17px;
      background:#fff;
      box-shadow:0 18px 35px rgba(73,55,129,.17);
    }
    .sim-topbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:12px 15px;
      border-bottom:1px solid #eeeaf4;
      color:var(--purple);
      font-size:12px;
      font-weight:850;
    }
    .sim-dots{display:flex;gap:5px}
    .sim-dots i{width:7px;height:7px;border-radius:50%;background:#d9d4e5}
    .sim-dots i:first-child{background:var(--coral)}
    .sim-body{display:grid;grid-template-columns:94px 1fr;min-height:237px}
    .sim-side{
      display:flex;
      flex-direction:column;
      gap:11px;
      padding:15px 11px;
      background:#faf9fd;
      border-right:1px solid #eeeaf4;
    }
    .sim-side span{height:9px;border-radius:6px;background:#ded7ef}
    .sim-side span:nth-child(2){width:80%;background:var(--purple)}
    .sim-side span:nth-child(4){width:66%}
    .sim-main{padding:18px}
    .sim-main-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}
    .sim-main-head b{font-size:13px}
    .status-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px var(--mint-soft)}
    .preview-block{height:91px;border-radius:12px;background:linear-gradient(135deg,#7656d7,#947de0);position:relative;overflow:hidden}
    .preview-block:before{content:"";position:absolute;width:86px;height:86px;right:24px;top:12px;border:12px solid rgba(255,255,255,.23);border-radius:50%}
    .preview-block:after{content:"";position:absolute;left:19px;bottom:18px;width:78px;height:8px;border-radius:8px;background:rgba(255,255,255,.8);box-shadow:0 -17px 0 rgba(255,255,255,.35)}
    .sim-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
    .sim-control{height:45px;border-radius:10px;background:#f2eefb;position:relative}
    .sim-control:before{content:"";position:absolute;left:12px;top:12px;width:20px;height:20px;border-radius:6px;background:var(--purple)}
    .sim-control:nth-child(2){background:var(--mint-soft)}
    .sim-control:nth-child(2):before{border-radius:50%;background:var(--mint)}
    .content-list{display:grid;gap:16px}
    .article-card{
      display:grid;
      grid-template-columns:146px 1fr auto;
      align-items:center;
      gap:26px;
      padding:26px 28px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:0 7px 20px rgba(73,55,129,.035);
      transition:.22s ease;
    }
    .article-card:hover{transform:translateY(-3px);border-color:#d8cdef;box-shadow:var(--shadow)}
    .article-meta{
      display:flex;
      min-height:72px;
      flex-direction:column;
      justify-content:center;
      gap:8px;
      padding-right:21px;
      border-right:1px solid #ebe7e1;
    }
    .article-date{color:var(--faint);font-size:12px;font-weight:700}
    .article-card h3{margin:0 0 7px;font-size:20px;line-height:1.35;letter-spacing:-.025em;font-weight:800}
    .article-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.72}
    .arrow-link{
      width:40px;
      height:40px;
      display:flex;
      align-items:center;
      justify-content:center;
      border:1px solid #d8cdef;
      border-radius:10px;
      color:var(--purple);
      font-size:20px;
      transition:.2s ease;
    }
    .article-card:hover .arrow-link{color:#fff;background:var(--purple);border-color:var(--purple)}
    .more-row{margin-top:25px;text-align:right}
    .more-row a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--purple);
      font-size:14px;
      font-weight:850;
    }
    .more-row a:hover{text-decoration:underline;text-underline-offset:4px}
    .function-section{background:#fff;border-top:1px solid #ede9e4;border-bottom:1px solid #ede9e4}
    .function-layout{display:grid;grid-template-columns:1fr 1.18fr;gap:42px;align-items:start}
    .function-index{display:grid;gap:11px}
    .function-tab{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:13px;
      align-items:center;
      padding:15px;
      border:1px solid transparent;
      border-radius:var(--radius-sm);
      color:var(--text);
      background:#faf9f7;
    }
    .function-tab.active{border-color:#d8cdef;background:var(--purple-soft);color:var(--ink)}
    .tab-icon{
      width:40px;
      height:40px;
      display:flex;
      align-items:center;
      justify-content:center;
      border-radius:11px;
      background:#fff;
      color:var(--purple);
      box-shadow:0 3px 9px rgba(73,55,129,.08);
      font-size:18px;
      font-weight:900;
    }
    .function-tab.active .tab-icon{color:#fff;background:var(--purple)}
    .function-tab strong{display:block;font-size:15px;line-height:1.35}
    .function-tab small{display:block;margin-top:3px;color:var(--muted);font-size:12px;line-height:1.45}
    .function-detail{
      padding:30px;
      border-radius:var(--radius);
      background:var(--ink);
      color:#fff;
      box-shadow:var(--shadow);
    }
    .function-detail .detail-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}
    .function-detail .detail-top span{color:#c9c3de;font-size:13px;font-weight:700}
    .live-mark{display:inline-flex;align-items:center;gap:7px;padding:5px 9px;border:1px solid rgba(53,191,164,.38);border-radius:8px;color:#9be6d5;font-size:11px;font-weight:850}
    .live-mark i{width:6px;height:6px;border-radius:50%;background:var(--mint)}
    .detail-board{display:grid;grid-template-columns:1.08fr .92fr;gap:16px}
    .detail-screen{min-height:210px;padding:21px;border-radius:15px;background:linear-gradient(145deg,#7556d6,#4e3997);position:relative;overflow:hidden}
    .detail-screen:before{content:"";position:absolute;right:-25px;bottom:-37px;width:165px;height:165px;border:20px solid rgba(255,255,255,.13);border-radius:50%}
    .detail-screen b{position:relative;font-size:16px}
    .detail-screen p{position:relative;max-width:165px;margin:8px 0 0;color:#ddd6f6;font-size:12px;line-height:1.65}
    .screen-bars{position:absolute;left:21px;right:21px;bottom:24px;display:grid;gap:9px}
    .screen-bars i{display:block;height:8px;border-radius:8px;background:rgba(255,255,255,.75)}
    .screen-bars i:last-child{width:62%;background:rgba(53,191,164,.95)}
    .detail-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .control-tile{min-height:98px;padding:14px;border-radius:14px;background:#34333d}
    .control-tile i{display:block;width:25px;height:25px;margin-bottom:12px;border-radius:7px;background:var(--mint)}
    .control-tile:nth-child(2) i{background:var(--coral);border-radius:50%}
    .control-tile:nth-child(3) i{background:var(--purple);transform:rotate(45deg)}
    .control-tile:nth-child(4) i{background:#d5caee}
    .control-tile span{display:block;color:#d8d5df;font-size:12px;font-weight:700}
    .notice-wrap{display:grid;grid-template-columns:1.06fr .94fr;gap:28px}
    .version-box{
      overflow:hidden;
      border:1px solid #d4e9e2;
      border-radius:var(--radius);
      background:#fff;
      box-shadow:0 7px 20px rgba(73,55,129,.035);
    }
    .version-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:15px;
      padding:20px 23px;
      border-bottom:1px solid #e5eee9;
      background:var(--mint-soft);
    }
    .version-head h3{margin:0;font-size:18px;font-weight:800}
    .version-head span{color:#168d76;font-size:12px;font-weight:850}
    .status-table{width:100%;border-collapse:collapse}
    .status-table th,.status-table td{padding:15px 22px;border-bottom:1px solid #eeeae5;text-align:left;font-size:14px}
    .status-table tr:last-child th,.status-table tr:last-child td{border-bottom:0}
    .status-table th{width:34%;color:var(--muted);font-weight:700;background:#fcfdfc}
    .status-table td{color:var(--text);font-weight:650}
    .state-ok{display:inline-flex;align-items:center;gap:7px;color:#168d76;font-size:13px;font-weight:800}
    .state-ok:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint)}
    .tip-panel{
      padding:28px;
      border-radius:var(--radius);
      background:var(--coral-soft);
      border:1px solid #f4d7ce;
    }
    .tip-panel h3{margin:0 0 14px;font-size:21px;letter-spacing:-.03em;font-weight:850}
    .tip-panel p{margin:0;color:#705a58;font-size:14px}
    .tip-list{display:grid;gap:12px;margin:21px 0 0;padding:0;list-style:none}
    .tip-list li{
      position:relative;
      padding-left:28px;
      color:#684f4b;
      font-size:14px;
      line-height:1.7;
    }
    .tip-list li:before{
      content:"!";
      position:absolute;
      left:0;
      top:3px;
      width:19px;
      height:19px;
      border-radius:6px;
      background:var(--coral);
      color:#fff;
      font-size:12px;
      font-weight:900;
      line-height:19px;
      text-align:center;
    }
    .faq-area{background:var(--purple-soft)}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:66px;align-items:start}
    .faq-copy h2{margin:0 0 14px;font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.045em;font-weight:850}
    .faq-copy p{margin:0;color:var(--muted)}
    .faq-list{display:grid;gap:11px}
    .faq-item{
      overflow:hidden;
      border:1px solid #ddd5f1;
      border-radius:14px;
      background:#fff;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      border:0;
      background:#fff;
      color:var(--ink);
      text-align:left;
      font-size:15px;
      font-weight:800;
    }
    .faq-question span:last-child{
      width:26px;
      height:26px;
      display:flex;
      flex:0 0 26px;
      align-items:center;
      justify-content:center;
      border-radius:8px;
      background:var(--purple-soft);
      color:var(--purple);
      font-size:20px;
      line-height:1;
      transition:transform .2s ease;
    }
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
    .faq-item.open .faq-answer{display:block}
    .download-cta{
      position:relative;
      overflow:hidden;
      padding:44px;
      border-radius:24px;
      background:var(--ink);
      color:#fff;
    }
    .download-cta:before{
      content:"";
      position:absolute;
      right:-38px;
      top:-66px;
      width:250px;
      height:250px;
      border:34px solid rgba(118,86,215,.42);
      border-radius:50%;
    }
    .download-cta:after{
      content:"";
      position:absolute;
      right:158px;
      bottom:-76px;
      width:122px;
      height:122px;
      background-image:radial-gradient(rgba(53,191,164,.78) 1.5px,transparent 1.7px);
      background-size:13px 13px;
    }
    .cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
    .cta-grid h2{max-width:630px;margin:0 0 9px;font-size:clamp(26px,3.3vw,39px);line-height:1.27;letter-spacing:-.045em;font-weight:850}
    .cta-grid p{max-width:650px;margin:0;color:#c9c7d0;font-size:15px}
    .cta-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:11px}
    .cta-actions .btn-outline{border-color:#9584d4;background:transparent;color:#fff}
    .cta-actions .btn-outline:hover{background:#383542;border-color:#c2b6ec}
    .site-footer{padding:58px 0 24px;background:var(--ink);color:#f6f4ef}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;padding-bottom:39px}
    .footer-brand{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:850}
    .footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;flex-basis:30px}
    .footer-brand .brand-mark:before{width:14px;height:4px;left:8px;top:13px}
    .footer-brand .brand-mark:after{width:4px;height:14px;left:13px;top:8px}
    .site-footer p{max-width:300px;margin:15px 0 0;color:#c6c3cc;font-size:13px;line-height:1.75}
    .footer-col h3{margin:2px 0 13px;color:#fff;font-size:14px;font-weight:850}
    .footer-col a{display:block;margin:8px 0;color:#c6c3cc;font-size:13px;transition:color .2s ease}
    .footer-col a:hover{color:#a997f0}
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding-top:22px;
      border-top:1px solid #3b3a43;
      color:#aeadb5;
      font-size:12px;
    }
    @media (max-width:1024px){
      .container{width:min(var(--container),calc(100% - 48px))}
      .brand{min-width:auto}
      .desktop-nav a{padding-inline:8px;font-size:13px}
      .header-actions .btn{padding:10px 13px}
      .explain-grid,.faq-grid{gap:36px}
      .article-card{grid-template-columns:126px 1fr auto;gap:19px}
      .footer-grid{gap:27px}
    }
    @media (max-width:767px){
      .container{width:calc(100% - 32px)}
      .header-inner{height:68px}
      .brand{font-size:14px}
      .brand-mark{width:31px;height:31px;flex-basis:31px}
      .brand-mark:before{width:14px;height:4px;left:8.5px;top:13.5px}
      .brand-mark:after{width:4px;height:14px;left:13.5px;top:8.5px}
      .desktop-nav,.header-actions .btn{display:none}
      .menu-toggle{display:block}
      .mobile-nav.is-open{display:block}
      .section{padding:62px 0}
      .section-tight{padding:34px 0}
      .channel-hero{padding:42px 0 46px;background:linear-gradient(145deg,#f8f6f0 0%,#f8f6f0 65%,#eeeaf8 65%,#eeeaf8 100%)}
      .channel-hero:after{right:-32px;bottom:-30px;width:145px;height:145px;border-width:21px}
      .channel-hero h1{font-size:37px}
      .channel-hero .lead{font-size:16px;line-height:1.82}
      .content-nav{padding:13px;flex-wrap:nowrap;overflow-x:auto}
      .content-nav a{flex:0 0 auto}
      .explain-grid,.function-layout,.notice-wrap,.faq-grid,.cta-grid{grid-template-columns:1fr;gap:28px}
      .panel-illustration{min-height:330px;padding:20px}
      .article-card{grid-template-columns:1fr auto;gap:16px;padding:21px}
      .article-meta{grid-column:1/-1;min-height:0;flex-direction:row;justify-content:flex-start;align-items:center;padding:0 0 12px;border-right:0;border-bottom:1px solid #ebe7e1}
      .article-card h3{font-size:18px}
      .article-card p{grid-column:1/-1}
      .arrow-link{grid-column:2;grid-row:2}
      .function-detail{padding:21px}
      .detail-board{grid-template-columns:1fr}
      .status-table th,.status-table td{padding:13px 14px;font-size:13px}
      .status-table th{width:39%}
      .faq-copy{max-width:620px}
      .download-cta{padding:31px 25px}
      .cta-actions{justify-content:flex-start}
      .cta-actions .btn{flex:1}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px 22px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:5px}
    }
    @media (max-width:520px){
      .channel-hero h1{font-size:32px}
      .channel-tags{gap:7px}
      .badge{padding:6px 9px}
      .section-title h2{font-size:27px}
      .panel-illustration{min-height:298px}
      .sim-body{grid-template-columns:74px 1fr}
      .sim-side{padding:13px 9px}
      .sim-main{padding:14px}
      .sim-controls{gap:8px}
      .function-detail{padding:18px}
      .detail-screen{min-height:180px}
      .control-tile{min-height:83px;padding:11px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .footer-col{padding-top:2px}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
    }