/* roulang page: index */
:root{
  --plum:#2B2035;
  --plum-2:#3b2b47;
  --coral:#F06B4F;
  --coral-dark:#d9553d;
  --mint:#5BCDB7;
  --ivory:#FBF8F2;
  --lav:#EEE8F2;
  --ink:#302C35;
  --muted:#746D78;
  --line:#e6dedb;
  --white:#fff;
  --radius:18px;
  --shadow:0 14px 38px rgba(43,32,53,.09);
  --container:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--ivory);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 96px));margin:0 auto}
.site-header{height:78px;background:var(--plum);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 5px 20px rgba(20,12,27,.14)}
.header-inner{height:78px;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:11px;min-width:230px}
.brand-mark{width:36px;height:36px;border:2px solid var(--coral);border-radius:12px 12px 12px 4px;position:relative;transform:rotate(-8deg)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%}
.brand-mark:before{width:8px;height:8px;background:var(--mint);top:7px;left:8px}
.brand-mark:after{width:8px;height:8px;background:var(--coral);right:6px;bottom:7px}
.brand-name{font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
.brand-name small{display:block;color:#c9becd;font-size:10px;font-weight:500;letter-spacing:.12em;line-height:1.2}
.nav{display:flex;align-items:center;gap:25px;margin-left:auto}
.nav a{color:#d8cfdc;font-size:14px;padding:26px 0;position:relative;transition:color .2s}
.nav a:after{content:"";height:3px;width:0;background:var(--coral);position:absolute;bottom:14px;left:0;border-radius:4px;transition:width .2s}
.nav a:hover,.nav a.active{color:#fff}
.nav a:hover:after,.nav a.active:after{width:100%}
.header-download,.btn-primary{background:var(--coral);color:var(--plum);font-weight:800;border-radius:11px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
.header-download:hover,.btn-primary:hover{background:#ff8066;transform:translateY(-2px);box-shadow:0 8px 18px rgba(240,107,79,.25)}
.header-download:active,.btn-primary:active{transform:translateY(0)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.hero{padding:80px 0 76px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;width:430px;height:430px;border-radius:50%;background:#f2e6e0;right:-120px;top:20px;z-index:-1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:74px}
.eyebrow,.section-kicker{color:var(--coral-dark);font-weight:800;font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:-.045em;margin:17px 0 22px;max-width:650px}
.hero h1 em{font-style:normal;color:var(--coral-dark)}
.hero-copy{font-size:18px;color:var(--muted);max-width:600px}
.hero-actions{display:flex;gap:13px;margin-top:31px;flex-wrap:wrap}
.btn-secondary{border:1px solid var(--plum);color:var(--plum);border-radius:11px;padding:10px 18px;font-weight:700;transition:.2s}
.btn-secondary:hover{background:var(--plum);color:#fff;transform:translateY(-2px)}
.btn-primary:focus,.btn-secondary:focus,.header-download:focus,.nav a:focus,.faq-question:focus{outline:3px solid rgba(91,205,183,.6);outline-offset:3px}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:25px;color:var(--muted);font-size:13px}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(91,205,183,.16)}
.hero-art{min-height:365px;position:relative}
.art-panel{position:absolute;background:var(--plum);color:#fff;border-radius:24px;box-shadow:var(--shadow)}
.art-main{width:76%;height:300px;right:4%;top:23px;padding:28px;background:var(--plum)}
.art-main:after{content:"";position:absolute;right:0;bottom:0;width:170px;height:170px;background:var(--coral);border-radius:100% 0 24px 0;opacity:.95}
.art-title{font-size:25px;font-weight:800;position:relative;z-index:2}
.art-sub{color:#cfc2d3;margin-top:5px}
.art-lines{position:absolute;left:28px;bottom:37px;z-index:2;width:57%}
.art-lines i{display:block;height:10px;background:#665572;border-radius:10px;margin-top:12px}
.art-lines i:nth-child(2){width:80%;background:var(--mint)}
.art-lines i:nth-child(3){width:62%;background:#e3b9ac}
.art-tag{position:absolute;right:21px;top:24px;background:var(--mint);color:var(--plum);padding:4px 10px;border-radius:30px;font-size:11px;font-weight:800;z-index:3}
.art-card{width:42%;height:128px;left:0;bottom:0;background:#fff;color:var(--ink);padding:18px;border:1px solid var(--line)}
.art-card strong{display:block;font-size:16px}
.art-card span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.art-card b{display:inline-block;margin-top:14px;color:var(--coral-dark);font-size:12px}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
.section-head h2{font-size:32px;line-height:1.25;letter-spacing:-.03em;margin-top:8px}
.section-head p{color:var(--muted);max-width:480px}
.stats{background:var(--plum);color:#fff;padding:25px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:14px 28px;border-right:1px solid rgba(255,255,255,.16)}
.stat:first-child{padding-left:0}.stat:last-child{border:0}
.stat strong{font-size:29px;display:block;color:var(--coral)}
.stat span{color:#d4c8d5;font-size:13px}
.hot-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
.game-card{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:26px;min-height:205px;position:relative;overflow:hidden;transition:.25s}
.game-card:hover,.feature-card:hover,.info-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9b7af}
.game-card.large{min-height:300px;background:var(--plum);color:#fff}
.game-card.large:after{content:"✦";position:absolute;right:29px;bottom:5px;color:var(--coral);font-size:100px;opacity:.8}
.game-card h3{font-size:23px;position:relative;z-index:1}
.game-card p{color:var(--muted);max-width:380px;margin-top:10px}
.game-card.large p{color:#d8cedb}
.game-card .meta{position:absolute;bottom:22px;left:26px;right:26px;display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.game-card.large .meta{color:#cfc1d1}
.badge{display:inline-flex;background:var(--lav);color:var(--plum);padding:4px 10px;border-radius:30px;font-size:11px;font-weight:800;margin-bottom:20px}
.badge.mint{background:#dff6f0;color:#246e62}
.channel-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:14px}
.channel{padding:27px;background:var(--lav);border-radius:16px;min-height:165px;border:1px solid transparent;transition:.2s}
.channel:hover{background:#e5dae9;border-color:#d4c3da}
.channel b{font-size:20px;display:block;margin:16px 0 7px}
.channel p{color:var(--muted);font-size:13px}
.channel .num{color:var(--coral-dark);font-size:12px;font-weight:800}
.guide-layout{display:grid;grid-template-columns:5fr 7fr;gap:42px;align-items:stretch}
.guide-feature{background:var(--plum);border-radius:20px;padding:34px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;min-height:365px}
.guide-feature h3{font-size:28px;line-height:1.3;margin:14px 0}
.guide-feature p{color:#d5c9d7}
.guide-list{display:grid;gap:12px}
.info-item{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;transition:.2s}
.info-icon{width:42px;height:42px;flex:none;border-radius:12px;background:#f8ded7;color:var(--coral-dark);display:grid;place-items:center;font-weight:800}
.info-item h3{font-size:16px}.info-item p{font-size:13px;color:var(--muted);margin-top:3px}
.info-meta{font-size:11px;color:var(--muted);margin-top:6px}
.download-section{background:#f1e9ee}
.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.download-grid h2{font-size:34px;line-height:1.3;margin:10px 0 15px}
.download-grid p{color:var(--muted)}
.download-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:25px 0}
.point{background:#fff;border-radius:13px;padding:15px;border:1px solid var(--line)}
.point strong{display:block;font-size:14px}.point span{font-size:12px;color:var(--muted)}
.app-board{background:var(--plum);border-radius:22px;min-height:330px;padding:27px;position:relative;color:#fff;overflow:hidden}
.app-board:before{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(255,255,255,.17);border-radius:50%;right:-40px;top:-70px}
.app-screen{background:#fff;color:var(--ink);width:190px;height:275px;border-radius:21px;padding:17px;position:absolute;right:76px;bottom:-38px;box-shadow:0 20px 35px rgba(0,0,0,.22)}
.app-screen .screen-top{height:45px;background:var(--coral);border-radius:12px;margin-bottom:13px}
.app-screen i{display:block;height:9px;border-radius:10px;background:#e5dfe5;margin:11px 0}
.app-screen i:nth-child(3){width:70%;background:var(--mint)}
.qr{width:76px;height:76px;border:7px solid #fff;background:repeating-linear-gradient(45deg,#fff 0 4px,#d5cbd7 4px 7px);position:absolute;left:30px;bottom:37px}
.feature-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;min-height:170px;transition:.2s}
.feature-card:nth-child(1){background:#fff0eb}.feature-card:nth-child(4){background:var(--plum);color:#fff}
.feature-card h3{font-size:19px;margin:18px 0 6px}.feature-card p{color:var(--muted);font-size:13px}.feature-card:nth-child(4) p{color:#d7cbd8}
.latest{background:#fff}
.latest-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.latest-item{border-bottom:1px solid var(--line);padding:18px 4px;display:grid;grid-template-columns:92px 1fr;gap:16px}
.latest-item time{color:var(--coral-dark);font-weight:800;font-size:13px}.latest-item h3{font-size:16px}.latest-item p{font-size:13px;color:var(--muted);margin-top:3px}
.more-link{color:var(--coral-dark);font-weight:800;font-size:13px}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--plum)}
.time-node{padding:22px 24px 0;border-right:1px solid var(--line);position:relative}.time-node:before{content:"";width:12px;height:12px;border-radius:50%;background:var(--coral);position:absolute;top:-7px;left:24px}.time-node:last-child{border:0}.time-node time{color:var(--coral-dark);font-weight:800;font-size:13px}.time-node h3{font-size:18px;margin:10px 0 5px}.time-node p{font-size:13px;color:var(--muted)}
.steps{background:var(--lav)}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.step{position:relative;padding-right:15px}.step-num{font-size:42px;color:var(--coral);font-weight:800;line-height:1}.step h3{font-size:17px;margin:13px 0 5px}.step p{color:var(--muted);font-size:13px}
.security-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.security-copy h2{font-size:31px;margin:9px 0 14px}.security-copy p{color:var(--muted)}.security-list{display:grid;gap:12px}.security-list li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:13px;padding:17px 20px}.security-list strong{display:block}.security-list span{font-size:13px;color:var(--muted)}
.featured-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:17px}.story-main{background:var(--plum);color:#fff;border-radius:18px;padding:30px;min-height:255px;display:flex;flex-direction:column;justify-content:end}.story-main h3{font-size:25px;margin:10px 0}.story-main p{color:#d7cad9;font-size:13px}.story-side{display:grid;gap:17px}.story-small{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px}.story-small h3{font-size:16px;margin:9px 0 4px}.story-small p{font-size:13px;color:var(--muted)}
.faq{background:#fff}.faq-list{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;background:none;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;font-weight:800;color:var(--ink)}.faq-question span{color:var(--coral);font-size:23px;transition:.25s}.faq-answer{display:none;padding:0 32px 20px 4px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
.notice{background:var(--lav);border-radius:21px;padding:28px 34px;display:flex;justify-content:space-between;align-items:center;gap:25px}.notice h2{font-size:25px;margin:6px 0}.notice p{color:var(--muted);font-size:14px}.notice-date{color:var(--coral-dark);font-weight:800;font-size:12px}
.cta{padding:48px 0;background:var(--plum);color:#fff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:31px}.cta p{color:#d7cad9;margin-top:5px}.cta-actions{display:flex;align-items:center;gap:18px}.mini-qr{width:55px;height:55px;background:repeating-linear-gradient(45deg,#fff 0 3px,#bcaec0 3px 6px);border:5px solid #fff}
.footer{background:#211829;color:#fff;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}.footer h3{font-size:16px;margin-bottom:16px}.footer-brand p{color:#bcb0c0;max-width:290px;font-size:13px}.footer-links{display:grid;gap:8px}.footer-links a{color:#bcb0c0;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--coral)}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:17px;color:#918596;font-size:12px;display:flex;justify-content:space-between}
@media(max-width:1024px){.container{width:min(var(--container),calc(100% - 56px))}.nav{gap:14px}.brand{min-width:200px}.hero-grid{gap:35px}.feature-grid{grid-template-columns:1fr 1fr}.feature-card:nth-child(1){grid-column:span 2}}
@media(max-width:768px){.site-header,.header-inner{height:68px}.header-inner{gap:12px}.brand{min-width:0;margin-right:auto}.brand-name{font-size:15px}.brand-name small{display:none}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--plum);padding:12px 28px 20px;flex-direction:column;align-items:stretch;gap:0}.nav.show{display:flex}.nav a{padding:11px 0}.nav a:after{bottom:3px}.header-download{padding:8px 12px;font-size:12px}.menu-toggle{display:block}.hero{padding:54px 0 55px}.hero-grid,.download-grid,.security-grid{grid-template-columns:1fr}.hero-art{min-height:330px}.stats-grid{grid-template-columns:repeat(2,1fr)}.stat{padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.16)}.stat:nth-child(2){border-right:0}.section{padding:58px 0}.hot-layout,.guide-layout,.featured-layout{grid-template-columns:1fr}.channel-grid,.timeline,.step-grid{grid-template-columns:1fr 1fr}.latest-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.notice,.cta-inner{align-items:flex-start;flex-direction:column}.cta-actions{width:100%}}
@media(max-width:480px){.container{width:calc(100% - 34px)}.brand-mark{width:31px;height:31px}.brand-name{font-size:14px}.header-download{font-size:11px;padding:7px 9px}.hero h1{font-size:39px;max-width:100%}.hero-copy{font-size:16px}.hero-actions a{width:100%;text-align:center}.hero-art{min-height:280px}.art-main{height:235px;width:83%;padding:20px}.art-title{font-size:20px}.art-card{height:105px;padding:13px;width:48%}.art-card b{margin-top:7px}.section-head{display:block}.section-head h2{font-size:27px}.section-head p{margin-top:10px}.stats-grid,.channel-grid,.feature-grid,.download-points,.timeline,.step-grid{grid-template-columns:1fr}.stat{border-right:0!important;padding-left:0}.feature-card:nth-child(1){grid-column:auto}.app-screen{right:28px}.qr{left:18px}.latest-item{grid-template-columns:70px 1fr;gap:9px}.notice{padding:23px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}}

/* roulang page: category1 */
:root{
      --plum:#2B2035;
      --plum-2:#3b2b47;
      --coral:#F06B4F;
      --coral-dark:#d9553d;
      --mint:#5BCDB7;
      --ivory:#FBF8F2;
      --lav:#EEE8F2;
      --ink:#302C35;
      --muted:#746D78;
      --line:#e6dedb;
      --white:#fff;
      --radius:18px;
      --shadow:0 14px 38px rgba(43,32,53,.09);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--ivory);line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 96px));margin:0 auto}
    .site-header{height:78px;background:var(--plum);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 5px 20px rgba(20,12,27,.14)}
    .header-inner{height:78px;display:flex;align-items:center;gap:36px}
    .brand{display:flex;align-items:center;gap:11px;min-width:230px}
    .brand-mark{width:36px;height:36px;border:2px solid var(--coral);border-radius:12px 12px 12px 4px;position:relative;transform:rotate(-8deg);flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%}
    .brand-mark:before{width:8px;height:8px;background:var(--mint);top:7px;left:8px}
    .brand-mark:after{width:8px;height:8px;background:var(--coral);right:6px;bottom:7px}
    .brand-name{font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
    .brand-name small{display:block;color:#c9becd;font-size:10px;font-weight:500;letter-spacing:.12em;line-height:1.2}
    .nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav a{color:#d8cfdc;font-size:14px;padding:26px 0;position:relative;transition:color .2s}
    .nav a:after{content:"";height:3px;width:0;background:var(--coral);position:absolute;bottom:14px;left:0;border-radius:4px;transition:width .2s}
    .nav a:hover,.nav a.active{color:#fff}
    .nav a:hover:after,.nav a.active:after{width:100%}
    .header-download,.btn-primary{background:var(--coral);color:var(--plum);font-weight:800;border-radius:11px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .header-download:hover,.btn-primary:hover{background:#ff8066;transform:translateY(-2px);box-shadow:0 8px 18px rgba(240,107,79,.25)}
    .header-download:active,.btn-primary:active{transform:translateY(0)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .page-hero{padding:76px 0 62px;background:var(--plum);color:#fff;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(91,205,183,.35);border-radius:50%;right:-70px;top:-120px;box-shadow:0 0 0 30px rgba(91,205,183,.05),0 0 0 65px rgba(240,107,79,.04)}
    .crumbs{font-size:13px;color:#cdbfd1;margin-bottom:24px}
    .crumbs a:hover{color:var(--coral)}
    .hero-label{display:inline-flex;background:var(--mint);color:var(--plum);padding:5px 12px;border-radius:30px;font-weight:800;font-size:12px;letter-spacing:.08em}
    .page-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.16;letter-spacing:-.045em;margin:18px 0 17px;max-width:720px}
    .page-hero p{color:#d9cfdc;font-size:17px;max-width:700px;margin:0}
    .section{padding:76px 0}
    .section.soft{background:var(--lav)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
    .section-kicker{color:var(--coral-dark);font-weight:800;font-size:12px;letter-spacing:.14em}
    .section-head h2{font-size:32px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .topic-bar{display:flex;gap:10px;flex-wrap:wrap;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 25px rgba(43,32,53,.04)}
    .topic{padding:9px 15px;border-radius:30px;background:var(--lav);color:var(--plum);font-weight:700;font-size:13px;transition:.2s}
    .topic:hover,.topic.current{background:var(--plum);color:#fff}
    .topic.current{box-shadow:inset 0 -3px 0 var(--coral)}
    .feature-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .feature-card{min-height:280px;border-radius:20px;padding:31px;background:#fff;border:1px solid var(--line);position:relative;overflow:hidden;transition:.25s}
    .feature-card.dark{background:var(--plum);color:#fff}
    .feature-card.dark:after{content:"✦";position:absolute;right:28px;bottom:-22px;font-size:130px;color:var(--coral);opacity:.8}
    .feature-card:hover,.content-item:hover,.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9b7af}
    .badge{display:inline-flex;background:var(--lav);color:var(--plum);padding:4px 10px;border-radius:30px;font-size:11px;font-weight:800;margin-bottom:18px}
    .badge.mint{background:#dff6f0;color:#246e62}
    .feature-card h3{font-size:26px;line-height:1.35;margin:0 0 12px;position:relative;z-index:1}
    .feature-card p{color:var(--muted);max-width:500px}
    .dark p{color:#d5c9d7}
    .feature-note{position:absolute;bottom:26px;left:31px;color:var(--coral);font-size:13px;font-weight:800}
    .content-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:start}
    .content-list{display:grid;gap:13px}
    .content-item{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px;transition:.2s}
    .content-icon{width:48px;height:48px;border-radius:13px;background:var(--plum);color:var(--mint);display:grid;place-items:center;font-size:22px;flex:0 0 auto}
    .content-item h3{font-size:17px;margin:0 0 4px}
    .content-item p{font-size:13px;color:var(--muted);margin:0}
    .meta{font-size:11px;color:var(--muted);margin-top:7px}
    .empty-state{padding:35px;text-align:center;border:1px dashed #cdbfc8;border-radius:16px;color:var(--muted);background:rgba(255,255,255,.55)}
    .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .scene-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:17px;min-height:175px;transition:.25s}
    .scene-card strong{display:block;font-size:20px;margin:11px 0 7px}
    .scene-card p{color:var(--muted);font-size:14px;margin:0}
    .scene-number{font-size:13px;color:var(--coral-dark);font-weight:800}
    .guide-box{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .guide-step{background:#fff;padding:25px;min-height:170px}
    .guide-step b{display:block;color:var(--coral-dark);font-size:27px;line-height:1;margin-bottom:20px}
    .guide-step h3{font-size:17px;margin:0 0 7px}
    .guide-step p{color:var(--muted);font-size:13px;margin:0}
    .faq-list{max-width:900px;margin:auto;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;text-align:left;background:transparent;color:var(--ink);font-weight:800;padding:20px 2px}
    .faq-question span:last-child{font-size:24px;color:var(--coral-dark);transition:.2s}
    .faq-answer{display:none;color:var(--muted);padding:0 35px 20px 2px;font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{background:var(--plum);color:#fff;border-radius:22px;padding:37px 42px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:29px;margin:0 0 7px}
    .cta p{color:#d7ccda;margin:0}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn-secondary{border:1px solid var(--plum);color:var(--plum);border-radius:11px;padding:10px 18px;font-weight:700;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .cta .btn-secondary{border-color:#b9aabd;color:#fff}
    .btn-secondary:hover{background:var(--plum);color:#fff;transform:translateY(-2px)}
    .btn-primary:focus,.btn-secondary:focus,.header-download:focus,.nav a:focus,.faq-question:focus{outline:3px solid rgba(91,205,183,.6);outline-offset:3px}
    .footer{background:var(--plum);color:#fff;padding:52px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#cfc1d1;max-width:290px;font-size:13px}
    .footer h3{font-size:15px;margin:5px 0 16px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#cfc1d1;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:17px;display:flex;justify-content:space-between;color:#a99bae;font-size:12px}
    @media(max-width:1024px){
      .container{width:min(var(--container),calc(100% - 64px))}
      .header-inner{gap:18px}.brand{min-width:210px}.nav{gap:16px}
      .content-layout,.feature-grid{grid-template-columns:1fr}
      .guide-box{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .site-header,.header-inner{height:70px}.header-inner{justify-content:space-between}
      .nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--plum);padding:10px 32px 20px;flex-direction:column;align-items:stretch;gap:0}
      .nav.show{display:flex}.nav a{padding:12px 0}.nav a:after{bottom:5px}.menu-toggle{display:block}
      .header-download{padding:9px 12px;font-size:13px}.brand-name{font-size:16px}
      .page-hero{padding:54px 0}.section{padding:58px 0}.scene-grid{grid-template-columns:1fr}
      .cta{align-items:flex-start;flex-direction:column;padding:29px 25px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 36px)}.page-hero h1{font-size:38px}.page-hero p{font-size:15px}
      .section-head{display:block}.section-head p{margin-top:12px}.guide-box{grid-template-columns:1fr}
      .content-item{padding:16px}.content-icon{width:40px;height:40px;font-size:18px}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
      .cta-actions,.cta-actions a{width:100%}.cta-actions a{text-align:center}
    }

/* roulang page: article */
:root{
      --plum:#2B2035;
      --plum-2:#3b2b47;
      --coral:#F06B4F;
      --coral-dark:#d9553d;
      --mint:#5BCDB7;
      --ivory:#FBF8F2;
      --lav:#EEE8F2;
      --ink:#302C35;
      --muted:#746D78;
      --line:#e6dedb;
      --white:#fff;
      --radius:18px;
      --shadow:0 14px 38px rgba(43,32,53,.09);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ivory);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:hover{text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 96px));margin:0 auto}
    .site-header{height:78px;background:var(--plum);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 5px 20px rgba(20,12,27,.14)}
    .header-inner{height:78px;display:flex;align-items:center;gap:36px}
    .brand{display:flex;align-items:center;gap:11px;min-width:230px}
    .brand-mark{width:36px;height:36px;border:2px solid var(--coral);border-radius:12px 12px 12px 4px;position:relative;transform:rotate(-8deg);flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%}
    .brand-mark:before{width:8px;height:8px;background:var(--mint);top:7px;left:8px}
    .brand-mark:after{width:8px;height:8px;background:var(--coral);right:6px;bottom:7px}
    .brand-name{font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
    .brand-name small{display:block;color:#c9becd;font-size:10px;font-weight:500;letter-spacing:.12em;line-height:1.2}
    .nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav a{color:#d8cfdc;font-size:14px;padding:26px 0;position:relative;transition:color .2s}
    .nav a:after{content:"";height:3px;width:0;background:var(--coral);position:absolute;bottom:14px;left:0;border-radius:4px;transition:width .2s}
    .nav a:hover,.nav a.active{color:#fff}
    .nav a:hover:after,.nav a.active:after{width:100%}
    .header-download,.btn-primary{background:var(--coral);color:var(--plum);font-weight:800;border-radius:11px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .header-download:hover,.btn-primary:hover{background:#ff8066;transform:translateY(-2px);box-shadow:0 8px 18px rgba(240,107,79,.25)}
    .header-download:active,.btn-primary:active{transform:translateY(0)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .page-hero{padding:70px 0 58px;background:var(--lav);position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;right:-70px;top:-110px;background:#f8d8cf}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:23px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--coral-dark)}
    .breadcrumb strong{color:var(--plum);font-weight:700;max-width:480px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .eyebrow,.section-kicker{color:var(--coral-dark);font-weight:800;font-size:12px;letter-spacing:.14em}
    .page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.04em;max-width:850px;margin:13px 0 18px;position:relative;z-index:1}
    .article-summary{font-size:18px;color:var(--muted);max-width:820px;margin:0;position:relative;z-index:1}
    .article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:25px;color:var(--muted);font-size:13px;position:relative;z-index:1}
    .meta-label{color:var(--plum);font-weight:700}
    .badge{display:inline-flex;background:var(--lav);color:var(--plum);padding:4px 10px;border-radius:30px;font-size:11px;font-weight:800}
    .badge.mint{background:#dff6f0;color:#246e62}
    .article-section{padding:65px 0}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:54px;align-items:start}
    .article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:42px 48px;box-shadow:0 10px 28px rgba(43,32,53,.045);overflow:hidden}
    .article-body h2{font-size:27px;line-height:1.35;margin:30px 0 14px;color:var(--plum)}
    .article-body h3{font-size:21px;line-height:1.45;margin:25px 0 10px;color:var(--plum)}
    .article-body p{margin:0 0 18px}
    .article-body ul,.article-body ol{padding-left:25px;margin:10px 0 22px}
    .article-body li{margin:7px 0}
    .article-body blockquote{margin:24px 0;padding:18px 22px;border-left:4px solid var(--coral);background:#fff3ef;color:var(--muted);border-radius:0 12px 12px 0}
    .article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px}
    .article-body th,.article-body td{padding:12px;border:1px solid var(--line);text-align:left}
    .article-body th{background:var(--lav);color:var(--plum)}
    .article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0}
    .article-body a{color:var(--coral-dark);font-weight:700;text-decoration:underline;text-underline-offset:3px}
    .article-body a:hover{color:var(--plum)}
    .side-stack{display:grid;gap:16px;position:sticky;top:105px}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:23px}
    .side-card.dark{background:var(--plum);color:#fff;border-color:var(--plum)}
    .side-card h2{font-size:18px;margin:0 0 14px}
    .side-card p{font-size:13px;color:var(--muted);margin:0}
    .side-card.dark p{color:#d7cbd9}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}
    .side-list li:last-child{border-bottom:0;padding-bottom:0}
    .side-list a:hover{color:var(--coral-dark)}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}
    .reading-note{margin-top:22px;padding:18px 20px;border-radius:14px;background:#e6f8f4;color:#246e62;font-size:13px}
    .article-actions{display:flex;justify-content:space-between;gap:15px;margin-top:28px;padding-top:23px;border-top:1px solid var(--line)}
    .btn-secondary{border:1px solid var(--plum);color:var(--plum);border-radius:11px;padding:10px 18px;font-weight:700;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{background:var(--plum);color:#fff;transform:translateY(-2px)}
    .btn-primary:focus,.btn-secondary:focus,.header-download:focus,.nav a:focus{outline:3px solid rgba(91,205,183,.6);outline-offset:3px}
    .cta-section{padding:0 0 78px}
    .cta-box{background:var(--plum);border-radius:22px;padding:35px 40px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px;position:relative;overflow:hidden}
    .cta-box:after{content:"✦";position:absolute;right:30px;bottom:-35px;color:var(--coral);font-size:125px;opacity:.45}
    .cta-box h2{font-size:27px;line-height:1.3;margin:0 0 8px;position:relative;z-index:1}
    .cta-box p{color:#d7cbd9;margin:0;position:relative;z-index:1}
    .cta-box .btn-primary{position:relative;z-index:1;white-space:nowrap}
    .footer{background:var(--plum);color:#fff;padding:58px 0 0}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#c9becd;font-size:13px;max-width:270px}
    .footer h3{font-size:15px;margin:3px 0 15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c9becd;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding:17px 0;display:flex;justify-content:space-between;gap:20px;color:#a99cac;font-size:12px}
    @media(max-width:1024px){
      .container{width:min(var(--container),calc(100% - 56px))}
      .header-inner{gap:18px}.brand{min-width:205px}.nav{gap:15px}
      .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:25px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .site-header,.header-inner{height:68px}.header-inner{justify-content:space-between}
      .brand-name{font-size:16px}.brand{min-width:0}
      .nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--plum);padding:10px 28px 20px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 12px 20px rgba(20,12,27,.18)}
      .nav.open{display:flex}.nav a{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.1)}
      .nav a:after{bottom:0}.header-download{padding:9px 12px;font-size:13px}.menu-toggle{display:block}
      .page-hero{padding:48px 0 42px}.article-layout{display:block}.side-stack{position:static;margin-top:22px;grid-template-columns:repeat(2,1fr)}
      .article-body{padding:28px 24px}.article-section{padding:42px 0}
      .cta-box{align-items:flex-start;flex-direction:column;padding:30px 25px}
      .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 32px)}.brand-mark{width:31px;height:31px}.brand-name{font-size:14px}.brand-name small{font-size:8px}
      .header-download{font-size:12px;padding:8px 9px}.menu-toggle{font-size:22px}
      .page-hero h1{font-size:34px}.article-summary{font-size:16px}.breadcrumb strong{max-width:180px}
      .article-body{padding:23px 18px}.article-body h2{font-size:23px}.article-body h3{font-size:19px}
      .side-stack{grid-template-columns:1fr}.article-actions{flex-direction:column}.article-actions a{width:100%}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin:4px 0}
    }

/* roulang page: category2 */
:root{
      --plum:#2B2035;
      --plum-2:#3b2b47;
      --coral:#F06B4F;
      --coral-dark:#d9553d;
      --mint:#5BCDB7;
      --ivory:#FBF8F2;
      --lav:#EEE8F2;
      --ink:#302C35;
      --muted:#746D78;
      --line:#e6dedb;
      --white:#fff;
      --radius:18px;
      --shadow:0 14px 38px rgba(43,32,53,.09);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--ivory);line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 96px));margin:0 auto}
    .site-header{height:78px;background:var(--plum);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 5px 20px rgba(20,12,27,.14)}
    .header-inner{height:78px;display:flex;align-items:center;gap:36px}
    .brand{display:flex;align-items:center;gap:11px;min-width:230px}
    .brand-mark{width:36px;height:36px;border:2px solid var(--coral);border-radius:12px 12px 12px 4px;position:relative;transform:rotate(-8deg)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%}
    .brand-mark:before{width:8px;height:8px;background:var(--mint);top:7px;left:8px}
    .brand-mark:after{width:8px;height:8px;background:var(--coral);right:6px;bottom:7px}
    .brand-name{font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
    .brand-name small{display:block;color:#c9becd;font-size:10px;font-weight:500;letter-spacing:.12em;line-height:1.2}
    .nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav a{color:#d8cfdc;font-size:14px;padding:26px 0;position:relative;transition:color .2s}
    .nav a:after{content:"";height:3px;width:0;background:var(--coral);position:absolute;bottom:14px;left:0;border-radius:4px;transition:width .2s}
    .nav a:hover,.nav a.active{color:#fff}
    .nav a:hover:after,.nav a.active:after{width:100%}
    .header-download,.btn-primary{background:var(--coral);color:var(--plum);font-weight:800;border-radius:11px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .header-download:hover,.btn-primary:hover{background:#ff8066;transform:translateY(-2px);box-shadow:0 8px 18px rgba(240,107,79,.25)}
    .header-download:active,.btn-primary:active{transform:translateY(0)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .btn-secondary{border:1px solid var(--plum);color:var(--plum);border-radius:11px;padding:10px 18px;font-weight:700;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{background:var(--plum);color:#fff;transform:translateY(-2px)}
    .btn-primary:focus,.btn-secondary:focus,.header-download:focus,.nav a:focus,.faq-question:focus{outline:3px solid rgba(91,205,183,.6);outline-offset:3px}
    .page-intro{padding:72px 0 58px;background:#f2e9ee;border-bottom:1px solid var(--line)}
    .crumbs{color:var(--muted);font-size:13px;margin-bottom:28px}
    .crumbs a:hover{color:var(--coral-dark)}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
    .eyebrow,.section-kicker{color:var(--coral-dark);font-weight:800;font-size:12px;letter-spacing:.14em}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.14;letter-spacing:-.045em;margin:15px 0 18px}
    .intro-copy{font-size:18px;color:var(--muted);max-width:700px}
    .intro-panel{background:var(--plum);color:#fff;border-radius:22px;padding:28px;position:relative;overflow:hidden}
    .intro-panel:after{content:"✦";position:absolute;right:22px;bottom:-20px;color:var(--coral);font-size:110px;opacity:.8}
    .intro-panel strong{font-size:22px;display:block;position:relative;z-index:1}
    .intro-panel p{color:#d7cbd9;position:relative;z-index:1;margin:9px 0 0}
    .section{padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
    .section-head h2{font-size:32px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .topic-bar{display:flex;gap:10px;flex-wrap:wrap;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px}
    .topic-bar a,.topic-bar span{padding:9px 16px;border-radius:30px;background:var(--lav);color:var(--plum);font-weight:700;font-size:13px;transition:.2s}
    .topic-bar a:hover,.topic-bar span.current{background:var(--plum);color:#fff}
    .guide-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:18px}
    .guide-lead{background:var(--plum);color:#fff;border-radius:20px;padding:34px;min-height:390px;display:flex;flex-direction:column;justify-content:flex-end}
    .guide-lead .badge{align-self:flex-start}
    .guide-lead h3{font-size:29px;line-height:1.3;margin:16px 0 12px}
    .guide-lead p{color:#d8cedb;margin:0}
    .guide-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .guide-card,.feature-card,.step-card,.update-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;transition:.25s}
    .guide-card:hover,.feature-card:hover,.step-card:hover,.update-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9b7af}
    .guide-card h3,.feature-card h3,.update-card h3{font-size:19px;margin:12px 0 7px}
    .guide-card p,.feature-card p,.update-card p{color:var(--muted);font-size:14px;margin:0}
    .badge{display:inline-flex;background:var(--lav);color:var(--plum);padding:4px 10px;border-radius:30px;font-size:11px;font-weight:800}
    .badge.mint{background:#dff6f0;color:#246e62}
    .card-meta{font-size:12px;color:var(--muted);margin-top:18px;padding-top:13px;border-top:1px solid var(--line)}
    .feature-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .feature-card.feature-main{background:#f0e7ef;min-height:260px;padding:32px}
    .feature-main h3{font-size:28px;max-width:520px}
    .feature-main p{max-width:580px}
    .feature-side{display:grid;gap:14px}
    .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step-card{min-height:185px;position:relative}
    .step-no{font-size:34px;font-weight:800;color:var(--coral);line-height:1}
    .step-card h3{font-size:18px;margin:22px 0 7px}
    .step-card p{font-size:13px;color:var(--muted);margin:0}
    .updates{background:#f1e9ee}
    .update-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .update-card{min-height:210px}
    .faq-wrap{max-width:900px}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:transparent;text-align:left;padding:21px 38px 21px 0;font-weight:800;color:var(--ink);position:relative}
    .faq-question:after{content:"+";position:absolute;right:4px;top:16px;font-size:25px;color:var(--coral-dark);transition:.2s}
    .faq-question[aria-expanded="true"]:after{content:"−";transform:rotate(180deg)}
    .faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .25s}
    .faq-answer>div{overflow:hidden;color:var(--muted);font-size:14px}
    .faq-question[aria-expanded="true"]+.faq-answer{grid-template-rows:1fr}
    .faq-answer p{margin:0 0 20px}
    .cta{background:var(--plum);color:#fff;border-radius:22px;padding:38px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:30px;line-height:1.3;margin:0 0 8px}
    .cta p{color:#d8cedb;margin:0}
    .footer{background:var(--plum);color:#fff;padding:62px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#c9becd;max-width:270px}
    .footer h3{font-size:15px;margin:4px 0 16px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c9becd;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#a99bad;font-size:12px}
    @media(max-width:1024px){
      .container{width:min(var(--container),calc(100% - 56px))}
      .header-inner{gap:18px}.brand{min-width:205px}.nav{gap:15px}
      .intro-grid,.guide-layout,.feature-layout{gap:28px}
    }
    @media(max-width:768px){
      .container{width:calc(100% - 40px)}
      .site-header,.header-inner{height:70px}
      .header-inner{justify-content:space-between}
      .nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--plum);padding:10px 20px 20px;flex-direction:column;align-items:stretch;gap:0}
      .nav.open{display:flex}.nav a{padding:12px 0}.nav a:after{bottom:4px}
      .menu-toggle{display:block}.header-download{padding:9px 12px;font-size:13px}
      .brand{min-width:0}.brand-name{font-size:16px}
      .page-intro{padding:48px 0 42px}.intro-grid,.guide-layout,.feature-layout{grid-template-columns:1fr}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .guide-list,.update-grid{grid-template-columns:1fr 1fr}.step-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta{display:block;padding:30px}.cta .btn-primary{margin-top:22px}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 28px)}
      .brand-mark{width:31px;height:31px}.brand-name{font-size:14px}.brand-name small{font-size:8px}
      .header-download{font-size:12px;padding:8px 9px}
      h1{font-size:39px}.intro-copy{font-size:16px}
      .guide-list,.update-grid,.step-grid{grid-template-columns:1fr}
      .section-head h2{font-size:27px}.guide-lead{min-height:300px}
      .footer-grid{grid-template-columns:1fr;gap:24px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
      .cta h2{font-size:25px}
    }

/* roulang page: category3 */
:root{
  --plum:#2B2035;
  --plum-2:#3b2b47;
  --coral:#F06B4F;
  --coral-dark:#d9553d;
  --mint:#5BCDB7;
  --ivory:#FBF8F2;
  --lav:#EEE8F2;
  --ink:#302C35;
  --muted:#746D78;
  --line:#e6dedb;
  --white:#fff;
  --radius:18px;
  --shadow:0 14px 38px rgba(43,32,53,.09);
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--ivory);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
a:focus,button:focus{outline:3px solid rgba(91,205,183,.65);outline-offset:3px}
img{max-width:100%;display:block}
button{font:inherit;border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 96px));margin:0 auto}
.site-header{height:78px;background:var(--plum);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 5px 20px rgba(20,12,27,.14)}
.header-inner{height:78px;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:11px;min-width:230px}
.brand-mark{width:36px;height:36px;border:2px solid var(--coral);border-radius:12px 12px 12px 4px;position:relative;transform:rotate(-8deg)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%}
.brand-mark:before{width:8px;height:8px;background:var(--mint);top:7px;left:8px}
.brand-mark:after{width:8px;height:8px;background:var(--coral);right:6px;bottom:7px}
.brand-name{font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
.brand-name small{display:block;color:#c9becd;font-size:10px;font-weight:500;letter-spacing:.12em;line-height:1.2}
.nav{display:flex;align-items:center;gap:25px;margin-left:auto}
.nav a{color:#d8cfdc;font-size:14px;padding:26px 0;position:relative;transition:color .2s}
.nav a:after{content:"";height:3px;width:0;background:var(--coral);position:absolute;bottom:14px;left:0;border-radius:4px;transition:width .2s}
.nav a:hover,.nav a.active{color:#fff}
.nav a:hover:after,.nav a.active:after{width:100%}
.header-download,.btn-primary{background:var(--coral);color:var(--plum);font-weight:800;border-radius:11px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
.header-download:hover,.btn-primary:hover{background:#ff8066;transform:translateY(-2px);box-shadow:0 8px 18px rgba(240,107,79,.25)}
.header-download:active,.btn-primary:active{transform:translateY(0)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.page-intro{padding:72px 0 56px;background:#f3e9ed;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
.breadcrumb a:hover{color:var(--coral-dark)}
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end}
.eyebrow,.section-kicker{color:var(--coral-dark);font-weight:800;font-size:12px;letter-spacing:.14em}
.page-intro h1{font-size:clamp(38px,5vw,64px);line-height:1.13;letter-spacing:-.045em;margin:14px 0 18px}
.page-intro p{color:var(--muted);font-size:17px;max-width:670px;margin:0}
.intro-panel{background:var(--plum);color:#fff;border-radius:22px;padding:27px;position:relative;overflow:hidden}
.intro-panel:after{content:"✦";position:absolute;right:20px;bottom:-26px;font-size:130px;color:var(--coral);opacity:.75}
.intro-panel strong{display:block;font-size:23px;position:relative;z-index:1}
.intro-panel span{display:block;color:#d9cedc;font-size:13px;position:relative;z-index:1;margin-top:6px}
.section{padding:78px 0}
.section.soft{background:#f5eff4}
.section.dark{background:var(--plum);color:#fff}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
.section-head h2{font-size:31px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
.section-head p{color:var(--muted);max-width:500px;margin:0}
.dark .section-head p{color:#d5c9d7}
.topic-bar{display:flex;gap:10px;flex-wrap:wrap;padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px}
.topic{padding:9px 15px;border-radius:30px;background:var(--lav);color:var(--plum);font-weight:700;font-size:13px}
.topic.active{background:var(--coral);color:var(--plum)}
.content-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
.feature-card{background:var(--plum);color:#fff;border-radius:20px;padding:33px;min-height:330px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;transition:.25s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature-card:before{content:"APP";position:absolute;right:-12px;top:24px;font-size:72px;font-weight:900;color:rgba(240,107,79,.24);letter-spacing:.04em}
.badge{display:inline-flex;width:max-content;background:var(--lav);color:var(--plum);padding:4px 10px;border-radius:30px;font-size:11px;font-weight:800;margin-bottom:16px}
.badge.mint{background:#dff6f0;color:#246e62}
.feature-card h3{font-size:28px;line-height:1.3;margin:0 0 12px;position:relative}
.feature-card p{color:#d9cedc;margin:0;max-width:520px;position:relative}
.feature-meta{display:flex;gap:18px;color:#cbbdce;font-size:12px;margin-top:24px;position:relative}
.update-list{display:grid;gap:12px}
.update-item{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px 21px;transition:.22s}
.update-item:hover{transform:translateY(-3px);border-color:#d9b7af;box-shadow:var(--shadow)}
.update-item h3{font-size:17px;margin:0 0 5px}
.update-item p{font-size:13px;color:var(--muted);margin:0}
.update-meta{font-size:11px;color:var(--muted);margin-top:9px}
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.article-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;min-height:178px;transition:.2s}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9b7af}
.article-card h3{font-size:18px;line-height:1.4;margin:10px 0 7px}
.article-card p{font-size:13px;color:var(--muted);margin:0}
.article-card time{font-size:11px;color:var(--muted)}
.empty-state{padding:38px;border:1px dashed #cdbfc9;border-radius:16px;background:#fff;color:var(--muted);text-align:center}
.feature-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature-box{padding:25px;background:#fff;border:1px solid var(--line);border-radius:17px;min-height:190px}
.feature-box:nth-child(2){background:var(--lav)}
.feature-box:nth-child(3){background:#e3f6f1}
.feature-icon{width:38px;height:38px;border-radius:12px;background:var(--coral);color:var(--plum);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
.feature-box h3{font-size:19px;margin:0 0 8px}
.feature-box p{color:var(--muted);font-size:13px;margin:0}
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.timeline:before{content:"";position:absolute;left:5%;right:5%;top:17px;height:2px;background:#d9c8d6}
.timeline-item{position:relative;padding-top:48px}
.timeline-dot{position:absolute;top:7px;left:0;width:22px;height:22px;border-radius:50%;background:var(--coral);border:6px solid var(--plum)}
.timeline-item h3{font-size:17px;margin:0 0 7px}
.timeline-item p{font-size:13px;color:#d5c9d7;margin:0}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-question{width:100%;padding:18px 20px;background:#fff;color:var(--ink);display:flex;justify-content:space-between;text-align:left;font-weight:800}
.faq-question span{color:var(--coral-dark);font-size:20px;line-height:1;transition:.2s}
.faq-answer{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:13px;transition:max-height .3s ease,padding .3s ease}
.faq-item.open .faq-answer{max-height:130px;padding:0 20px 17px}
.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta{padding:42px 48px;background:var(--plum);color:#fff;border-radius:22px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta h2{font-size:29px;margin:0 0 7px}
.cta p{color:#d6cad8;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-secondary{border:1px solid var(--plum);color:var(--plum);border-radius:11px;padding:10px 18px;font-weight:700;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
.btn-secondary:hover{background:var(--plum);color:#fff;transform:translateY(-2px)}
.dark .btn-secondary{border-color:#fff;color:#fff}
.dark .btn-secondary:hover{background:#fff;color:var(--plum)}
.footer{background:var(--plum);color:#fff;padding:58px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{color:#c9becd;max-width:270px;font-size:13px}
.footer h3{font-size:15px;margin:4px 0 17px}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13px;color:#c9becd;transition:.2s}
.footer-links a:hover{color:var(--coral)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;color:#aa9eae;font-size:12px}
@media(max-width:1024px){
  .container{width:min(var(--container),calc(100% - 64px))}
  .header-inner{gap:18px}.brand{min-width:205px}.nav{gap:15px}
  .intro-grid,.content-layout{gap:35px}.feature-columns{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .container{width:calc(100% - 42px)}
  .site-header,.header-inner{height:70px}
  .brand-name{font-size:16px}.brand{min-width:0}
  .nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--plum);padding:12px 21px 18px;flex-direction:column;align-items:stretch;gap:0}
  .nav.open{display:flex}.nav a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav a:after{bottom:0}.menu-toggle{display:block;margin-left:auto}
  .header-download{padding:9px 12px;font-size:12px}
  .page-intro{padding:52px 0 42px}.intro-grid,.content-layout{grid-template-columns:1fr}
  .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
  .feature-columns,.timeline{grid-template-columns:1fr 1fr}.timeline:before{display:none}
  .faq-grid,.article-grid{grid-template-columns:1fr}
  .cta{display:block;padding:32px 25px}.cta-actions{margin-top:22px}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
  .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
}
@media(max-width:480px){
  .container{width:calc(100% - 30px)}
  .brand-mark{width:31px;height:31px}.brand-name{font-size:14px}.brand-name small{font-size:8px}
  .header-download{font-size:11px;padding:8px 9px}
  .page-intro h1{font-size:37px}.page-intro p{font-size:15px}
  .intro-panel{padding:23px}.intro-panel strong{font-size:20px}
  .feature-columns,.timeline{grid-template-columns:1fr}
  .cta h2{font-size:24px}.cta-actions a{width:100%}
  .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
}