/* roulang page: index */
:root{
  --ink:#17211D;--ink-2:#25342D;--lime:#B7EE54;--lime-deep:#9ed63e;--sand:#F6F5F0;
  --mist:#DDE3D9;--white:#fff;--text:#1E2924;--muted:#64716A;--line:#D6DDD4;
  --orange:#E8843D;--green:#4C9B6C;--radius:16px;--radius-lg:22px;
  --shadow:0 16px 42px rgba(23,33,29,.08);--shadow-hover:0 22px 48px rgba(23,33,29,.14);
  --container:1200px;--ease:180ms ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--sand);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.65}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
:focus-visible{outline:3px solid rgba(183,238,84,.8);outline-offset:3px}
.container{width:min(calc(100% - 48px),var(--container));margin:auto}
.topbar{height:32px;background:var(--ink);color:#dce6dd;font-size:12px}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.topbar-left{display:flex;align-items:center;gap:9px}
.signal{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(183,238,84,.15)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.96);border-bottom:1px solid transparent;transition:var(--ease);backdrop-filter:blur(12px)}
.site-header.scrolled{border-color:var(--line);box-shadow:0 8px 22px rgba(23,33,29,.06)}
.navbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:11px;min-width:245px}
.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--ink);display:grid;place-items:center;position:relative;overflow:hidden}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--lime);border-radius:50%}
.brand-mark:before{width:18px;height:18px}.brand-mark:after{width:8px;height:8px;background:var(--lime)}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.25}
.brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links>a,.more-toggle{border:0;background:none;padding:10px 11px;border-radius:9px;color:#445049;font-size:14px;white-space:nowrap;transition:var(--ease)}
.nav-links>a:hover,.nav-links>a.active,.more-toggle:hover{color:var(--ink);background:var(--mist)}
.more-wrap{position:relative}
.more-panel{display:none;position:absolute;right:0;top:46px;width:310px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.more-wrap.open .more-panel{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.more-panel a{font-size:13px;padding:8px;border-radius:7px;color:#4d5a53}
.more-panel a:hover{background:var(--sand);color:var(--ink)}
.nav-action{display:flex;gap:10px;align-items:center}
.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-deep);box-shadow:0 8px 20px rgba(183,238,84,.25)}
.btn-dark{border-color:#58655e;color:var(--white);background:transparent}
.btn-dark:hover{background:#29362f;border-color:#8d9a91}
.btn-outline{border-color:#9da9a1;background:transparent;color:var(--ink)}
.btn-outline:hover{border-color:var(--ink);background:#fff}
.btn-arrow svg{transition:transform var(--ease)}
.btn-arrow:hover svg{transform:translateX(3px)}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px}
.menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0}
.mobile-menu{display:none}
section{padding:88px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#526058;font-size:13px;font-weight:800;letter-spacing:.06em}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--lime-deep)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{margin:8px 0 0;font-size:34px;letter-spacing:-.04em;line-height:1.2}
.section-head p{max-width:470px;margin:0;color:var(--muted);font-size:15px}
.hero{padding:0;background:var(--ink);color:var(--white);overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;inset:0;opacity:.16;background-image:linear-gradient(rgba(221,227,217,.25) 1px,transparent 1px),linear-gradient(90deg,rgba(221,227,217,.25) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000 5%,transparent 75%)}
.hero-grid{min-height:590px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px;position:relative}
.hero-copy{padding:76px 0 42px}
.hero-copy .eyebrow{color:#c7d4ca}.hero-copy .eyebrow:before{background:var(--lime)}
.hero h1{margin:18px 0 18px;max-width:640px;font-size:52px;line-height:1.13;letter-spacing:-.055em}
.hero h1 strong{color:var(--lime);font-weight:800}
.hero-copy p{max-width:585px;margin:0;color:#c9d3cb;font-size:17px}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-device{height:468px;position:relative;align-self:end}
.device{position:absolute;right:8%;bottom:0;width:275px;height:460px;border:8px solid #313d36;border-bottom:0;border-radius:32px 32px 0 0;background:#e5ebe4;box-shadow:-24px 22px 55px rgba(0,0,0,.35);overflow:hidden}
.device:before{content:"";position:absolute;width:90px;height:19px;border-radius:0 0 12px 12px;background:#313d36;top:0;left:50%;transform:translateX(-50%);z-index:2}
.device-screen{padding:42px 16px 20px;color:var(--ink)}
.screen-top{display:flex;align-items:center;justify-content:space-between;font-size:10px;font-weight:800}
.screen-title{font-size:20px;font-weight:800;margin:25px 0 14px}
.screen-banner{height:106px;border-radius:15px;background:var(--ink);padding:15px;color:#fff;position:relative;overflow:hidden}
.screen-banner:after{content:"";position:absolute;width:88px;height:88px;border:1px solid var(--lime);border-radius:50%;right:-16px;bottom:-28px}
.screen-banner b{display:block;color:var(--lime);font-size:11px}.screen-banner span{font-size:16px;font-weight:800;display:block;margin-top:7px}
.screen-row{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:12px}
.screen-box{height:89px;border-radius:12px;padding:11px;background:#fff;border:1px solid #d4ddd4;font-size:10px}
.screen-box i{display:block;width:25px;height:25px;border-radius:8px;background:var(--lime);margin-bottom:9px}
.floating-chip{position:absolute;right:calc(8% + 230px);top:100px;width:166px;padding:14px;background:#eff3ed;color:var(--ink);border-radius:13px;box-shadow:var(--shadow);font-size:12px}
.floating-chip b{display:block;font-size:13px;margin-bottom:4px}.floating-chip .chip-dot{color:var(--green);font-weight:800}
.version-badge{position:absolute;right:0;bottom:55px;background:var(--lime);color:var(--ink);padding:10px 13px;border-radius:10px;font-size:12px;font-weight:800}
.status-strip{position:absolute;left:0;right:0;bottom:0;border-top:1px solid rgba(221,227,217,.18);background:rgba(0,0,0,.12)}
.status-strip .container{height:64px;display:flex;align-items:center}
.status-item{flex:1;display:flex;align-items:center;gap:10px;color:#d4ded5;font-size:13px}
.status-item+ .status-item{border-left:1px solid rgba(221,227,217,.18);padding-left:30px}
.status-item b{color:#fff}.status-icon{width:8px;height:8px;border-radius:50%;background:var(--lime)}
.verify{padding:34px 0;background:#eef1eb}
.verify-bar{display:grid;grid-template-columns:repeat(3,1fr) auto;align-items:center;background:#fff;border:1px solid var(--line);border-radius:17px;padding:12px 14px;box-shadow:0 8px 25px rgba(23,33,29,.04)}
.verify-item{display:flex;align-items:center;gap:12px;padding:7px 17px;border-right:1px solid var(--line)}
.verify-item:last-of-type{border:0}
.verify-icon{width:34px;height:34px;border-radius:10px;background:var(--mist);display:grid;place-items:center;color:var(--ink)}
.verify-item b{display:block;font-size:14px}.verify-item span{display:block;font-size:12px;color:var(--muted)}
.channel-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr 1.1fr;gap:14px}
.channel-card{min-height:204px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;position:relative;overflow:hidden;transition:var(--ease)}
.channel-card:hover{transform:translateY(-4px);border-color:#a8b7a8;box-shadow:var(--shadow)}
.channel-card:nth-child(2),.channel-card:nth-child(4){background:#edf1eb}
.channel-card h3{font-size:20px;margin:18px 0 7px}.channel-card p{margin:0;color:var(--muted);font-size:14px}
.card-arrow{position:absolute;right:20px;bottom:18px;width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--lime);font-size:18px}
.mini-visual{height:52px;display:flex;align-items:end;gap:6px}.mini-visual i{display:block;background:var(--lime);border-radius:3px}.mini-visual i:nth-child(1){width:12px;height:22px}.mini-visual i:nth-child(2){width:12px;height:40px}.mini-visual i:nth-child(3){width:12px;height:30px}.mini-visual i:nth-child(4){width:12px;height:50px}
.grid-visual{width:55px;height:52px;background:linear-gradient(90deg,transparent 45%,#758078 46% 54%,transparent 55%),linear-gradient(transparent 45%,#758078 46% 54%,transparent 55%);background-size:18px 18px;border:1px solid #758078}
.download-visual{width:43px;height:52px;border:2px solid var(--ink);border-radius:8px;position:relative}.download-visual:after{content:"↓";position:absolute;left:11px;top:8px;font-size:24px;font-weight:800}
.shield-visual{width:42px;height:48px;border:2px solid var(--ink);border-radius:18px 18px 22px 22px;clip-path:polygon(50% 0,100% 18%,90% 78%,50% 100%,10% 78%,0 18%)}
.latest{background:#f0f2ed}
.news-feature{display:grid;grid-template-columns:154px 1fr;gap:26px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;padding:25px;margin-bottom:15px;transition:var(--ease)}
.news-feature:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.date-block{background:var(--ink);border-radius:14px;color:#fff;padding:19px;display:flex;flex-direction:column;justify-content:space-between;min-height:145px}
.date-block b{font-size:42px;line-height:1;color:var(--lime)}.date-block span{font-size:12px;color:#c3cec5}
.tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:99px;background:#e4eee0;color:#355143;font-size:12px;font-weight:800}
.tag.orange{background:#f8e5d7;color:#9b5626}.tag.gray{background:#e8ece7;color:#57635b}
.news-copy h3{font-size:23px;margin:11px 0 8px}.news-copy p{margin:0;color:var(--muted);font-size:14px;max-width:760px}
.news-meta{display:flex;justify-content:space-between;align-items:center;margin-top:16px;color:var(--muted);font-size:13px}
.news-list{border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:110px 1.2fr 2fr auto;gap:18px;align-items:center;padding:19px 3px;border-bottom:1px solid var(--line);transition:var(--ease)}
.news-row:hover{padding-left:11px;background:rgba(255,255,255,.58)}
.news-row h3{font-size:16px;margin:0}.news-row p{font-size:13px;color:var(--muted);margin:0}.news-row time{font-size:13px;color:var(--muted)}.read-link{font-weight:800;color:var(--ink)}
.empty-state{border:1px dashed #aab6ac;border-radius:16px;text-align:center;padding:42px;background:#fff;color:var(--muted)}
.timeline-wrap{overflow-x:auto;padding-bottom:10px}
.timeline{min-width:850px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;padding-top:28px}
.timeline:before{content:"";position:absolute;left:5%;right:5%;top:35px;height:2px;background:var(--line)}
.time-item{position:relative;padding:31px 20px 0}.time-item:before{content:"";position:absolute;top:0;width:16px;height:16px;border:4px solid var(--sand);background:var(--lime-deep);border-radius:50%;z-index:1}
.time-item:last-child:before{background:var(--orange)}.time-item small{color:var(--muted);font-size:12px}.time-item h3{font-size:17px;margin:7px 0}.time-item p{font-size:13px;color:var(--muted);margin:0}
.preview{background:#fff}
.preview-grid{display:grid;grid-template-columns:.78fr 1.2fr .78fr;gap:32px;align-items:center}
.point-list{display:grid;gap:18px}.point{padding-left:18px;border-left:2px solid var(--lime-deep)}.point b{display:block;font-size:16px}.point span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.preview-phone{height:455px;width:245px;margin:auto;border:8px solid #26332c;border-radius:30px;background:#e8ede7;box-shadow:0 20px 35px rgba(23,33,29,.18);padding:38px 13px 15px;position:relative;overflow:hidden}
.preview-phone:before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);height:16px;width:82px;background:#26332c;border-radius:0 0 9px 9px}
.preview-card{background:#fff;border:1px solid var(--line);padding:13px;border-radius:13px;margin-bottom:12px}.preview-card b{font-size:13px}.preview-card div{height:44px;margin-top:9px;border-radius:9px;background:linear-gradient(130deg,var(--lime),#dce8d4)}
.callout{padding:17px;border-radius:13px;background:#edf1eb;border:1px solid var(--line);font-size:13px}.callout b{display:block;margin-bottom:5px}
.download-panel{background:var(--ink);border-radius:var(--radius-lg);color:#fff;padding:42px;display:grid;grid-template-columns:1.1fr .7fr 1fr;gap:42px;align-items:center}
.download-panel h2{font-size:31px;margin:9px 0 12px}.download-panel p{color:#c7d1c8;font-size:14px;margin:0}.compat{margin-top:20px;display:flex;gap:8px;flex-wrap:wrap}.compat span{border:1px solid #4e5c54;border-radius:99px;padding:5px 9px;font-size:12px;color:#d5dfd6}
.qr-box{width:154px;height:154px;margin:auto;border-radius:12px;background:repeating-linear-gradient(45deg,#fff 0 5px,#d9e0d9 5px 9px);padding:12px;display:grid;place-items:center}
.qr-inner{width:100%;height:100%;background:repeating-linear-gradient(90deg,#17211d 0 5px,transparent 5px 10px),repeating-linear-gradient(#17211d 0 5px,#fff 5px 10px);mix-blend-mode:multiply}
.qr-note{text-align:center;font-size:12px;color:#c7d1c8;margin:11px 0 0}
.download-side ol{margin:13px 0 19px;padding-left:20px;color:#d7dfd8;font-size:13px}.download-side li{margin:6px 0}
.path{background:#edf1eb}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}.path-grid:before{content:"";position:absolute;left:9%;right:9%;top:29px;border-top:1px dashed #819087}
.path-step{position:relative;padding:0 21px}.step-no{width:59px;height:59px;display:grid;place-items:center;border:1px solid #a8b5ab;border-radius:50%;background:var(--sand);font-weight:800;color:var(--ink);position:relative;z-index:1}.path-step h3{font-size:17px;margin:16px 0 5px}.path-step p{font-size:13px;color:var(--muted);margin:0}
.security-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:start}
.security-intro{padding:35px;background:#fff5ec;border:1px solid #efd5bf;border-radius:var(--radius-lg)}
.security-intro h2{font-size:32px;margin:12px 0}.security-intro p{color:#675c52;font-size:14px}.security-intro ul{list-style:none;padding:0;margin:21px 0 0}.security-intro li{padding:11px 0;border-top:1px solid #ead5c2;font-size:14px}.security-intro li:before{content:"•";color:var(--orange);font-size:20px;margin-right:9px}
.security-list{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}.security-list h3{margin:0;padding:19px 21px;background:#edf1eb;font-size:17px}.security-list details{border-top:1px solid var(--line);padding:0 21px}.security-list summary{padding:15px 0;font-weight:800;cursor:pointer;font-size:14px}.security-list p{margin:0 0 15px;color:var(--muted);font-size:13px}
.scenes{padding-bottom:64px}.scene-stack{display:grid;gap:20px}.scene{min-height:255px;border-radius:var(--radius-lg);display:grid;grid-template-columns:1.05fr .95fr;overflow:hidden}.scene.dark{background:var(--ink);color:#fff}.scene.light{background:#e7ece5}.scene-copy{padding:36px}.scene-copy h3{font-size:28px;margin:9px 0}.scene-copy p{font-size:14px;max-width:420px;color:inherit;opacity:.76}.scene-visual{position:relative;overflow:hidden;background:linear-gradient(135deg,#cdd9ca,#f9faf6)}.dark .scene-visual{background:#293830}.ui-window{position:absolute;right:12%;bottom:-20px;width:280px;height:220px;border-radius:18px 18px 0 0;background:#fff;box-shadow:0 14px 30px rgba(0,0,0,.16);padding:18px}.ui-window:before{content:"";display:block;width:52%;height:12px;border-radius:7px;background:#dce4da;margin-bottom:22px}.ui-lines i{display:block;height:10px;border-radius:5px;background:#e2e8e0;margin:10px 0}.ui-lines i:nth-child(2){width:75%;background:var(--lime)}.ui-lines i:nth-child(3){width:88%}
.faq-wrap{max-width:880px;margin:auto}.faq-item{border-top:1px solid var(--line)}.faq-item:last-child{border-bottom:1px solid var(--line)}.faq-item summary{list-style:none;padding:20px 45px 20px 0;position:relative;font-size:16px;font-weight:800;cursor:pointer}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:4px;top:13px;font-size:28px;color:var(--green);font-weight:400}.faq-item[open] summary:after{content:"−"}.faq-item p{margin:0;padding:0 30px 20px 0;color:var(--muted);font-size:14px}
.support{padding-top:36px;padding-bottom:94px}.support-box{padding:34px 40px;border-radius:var(--radius-lg);background:var(--mist);display:flex;align-items:center;justify-content:space-between;gap:28px}.support-box h2{font-size:29px;margin:0 0 7px}.support-box p{margin:0;color:var(--muted);font-size:14px}.support-actions{display:flex;align-items:center;gap:14px;white-space:nowrap}.support-time{font-size:12px;color:var(--muted)}
footer{background:var(--ink);color:#d9e1da;padding:58px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px}.footer-brand p{font-size:13px;color:#aebbb1;max-width:300px}.footer-title{color:#fff;font-size:14px;font-weight:800;margin:4px 0 14px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#adbaaf;transition:var(--ease)}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #344139;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;color:#8e9b91;font-size:12px}.footer-bottom a{color:#aebbb1}
.modal{display:none;position:fixed;inset:0;z-index:90;background:rgba(12,20,16,.62);align-items:center;justify-content:center;padding:20px}.modal.open{display:flex}.modal-card{width:min(420px,100%);background:#fff;border-radius:18px;padding:28px;position:relative;box-shadow:0 25px 70px rgba(0,0,0,.3)}.modal-close{position:absolute;right:14px;top:12px;border:0;background:none;font-size:25px;color:var(--muted)}.modal-card h2{font-size:23px;margin:0 0 8px}.modal-card p{font-size:14px;color:var(--muted)}.feedback-form{display:grid;gap:12px;margin-top:17px}.feedback-form input,.feedback-form textarea{width:100%;border:1px solid var(--line);background:var(--sand);border-radius:9px;padding:12px;outline:none}.feedback-form textarea{min-height:110px;resize:vertical}.feedback-form input:focus,.feedback-form textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(76,155,108,.12)}
@media(max-width:1024px){.nav-links{gap:0}.nav-links>a,.more-toggle{padding:9px 7px}.brand{min-width:210px}.hero h1{font-size:46px}.channel-grid{grid-template-columns:repeat(2,1fr)}.download-panel{gap:25px;padding:33px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.topbar-right{display:none}.navbar{height:65px}.nav-links,.nav-action .btn{display:none}.menu-btn{display:block}.brand{min-width:0}.brand-note{display:none}.mobile-menu{position:fixed;z-index:60;inset:0;background:var(--sand);padding24px;transform:translateX(100%);transition:transform .24s ease}.mobile-menu.open{display:block;transform:translateX(0)}.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;height:62px;border-bottom:1px solid var(--line)}.mobile-menu nav{display:grid;gap:7px;padding:26px 0}.mobile-menu nav a{font-size:18px;font-weight:800;padding:13px 0;border-bottom:1px solid var(--line)}.mobile-menu .btn{width:100%;margin-top:18px}.hero-grid{grid-template-columns:1fr;min-height:auto}.hero-copy{padding:65px 0 100px}.hero h1{font-size:39px;max-width:600px}.hero-device{display:none}.status-strip .container{overflow:auto}.status-item{min-width:180px}.status-item+.status-item{padding-left:18px}.verify-bar{grid-template-columns:1fr;padding:9px}.verify-item{border-right:0;border-bottom:1px solid var(--line);padding:12px}.verify-bar .btn{margin:8px 5px 3px}.section-head{display:block}.section-head p{margin-top:14px}.section-head h2{font-size:29px}.news-row{grid-template-columns:95px 1fr auto}.news-row p{display:none}.preview-grid{grid-template-columns:1fr}.preview-phone{order:-1}.download-panel{grid-template-columns:1fr;text-align:center}.download-panel h2{font-size:28px}.compat{justify-content:center}.download-side ol{text-align:left;display:inline-block}.path-grid{grid-template-columns:1fr 1fr;gap:28px}.path-grid:before{display:none}.security-grid{grid-template-columns:1fr}.scene{grid-template-columns:1fr}.scene-visual{min-height:185px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.support-box{display:block}.support-actions{margin-top:20px;flex-wrap:wrap}.support{padding-bottom:72px}}
@media(max-width:520px){section{padding:62px 0}.topbar{font-size:11px}.topbar .container{justify-content:center}.topbar-left{gap:6px}.hero h1{font-size:33px}.hero-copy p{font-size:15px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn{width:100%}.channel-grid{grid-template-columns:1fr}.news-feature{grid-template-columns:1fr;padding:18px;gap:16px}.date-block{min-height:70px;flex-direction:row;align-items:center}.date-block b{font-size:31px}.news-row{grid-template-columns:1fr auto;gap:8px;padding:16px 2px}.news-row .tag{grid-column:1/2}.news-row time{grid-column:1/2}.news-row .read-link{grid-column:2;grid-row:1/4}.preview-phone{transform:scale(.9);margin:-22px auto}.path-grid{grid-template-columns:1fr}.path-step{padding:0}.scene-copy{padding:27px}.scene-copy h3{font-size:24px}.support-box{padding:28px}.support-box h2{font-size:25px}.footer-grid{gap:26px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* roulang page: article */
:root{
      --ink:#17211D;--ink-2:#25342D;--lime:#B7EE54;--lime-deep:#9ed63e;--sand:#F6F5F0;
      --mist:#DDE3D9;--white:#fff;--text:#1E2924;--muted:#64716A;--line:#D6DDD4;
      --orange:#E8843D;--green:#4C9B6C;--radius:16px;--radius-lg:22px;
      --shadow:0 16px 42px rgba(23,33,29,.08);--shadow-hover:0 22px 48px rgba(23,33,29,.14);
      --container:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--sand);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .topbar{height:32px;background:var(--ink);color:#dce6dd;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-left{display:flex;align-items:center;gap:9px}
    .topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(183,238,84,.12)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.96);border-bottom:1px solid transparent;transition:var(--ease);backdrop-filter:blur(12px)}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 22px rgba(23,33,29,.06)}
    .navbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--ink);display:grid;place-items:center;position:relative;overflow:hidden;flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:18px;height:18px}
    .brand-mark:after{width:8px;height:8px;background:var(--lime)}
    .brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.25}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links>a,.more-toggle{border:0;background:none;padding:10px 11px;border-radius:9px;color:#445049;font-size:14px;white-space:nowrap;transition:var(--ease)}
    .nav-links>a:hover,.nav-links>a.active,.more-toggle:hover{color:var(--ink);background:var(--mist)}
    .more-wrap{position:relative}
    .more-panel{position:absolute;top:calc(100% + 12px);right:0;width:250px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:none;grid-template-columns:1fr 1fr;gap:3px;z-index:60}
    .more-wrap.open .more-panel{display:grid}
    .more-panel a{font-size:13px;padding:8px;border-radius:7px;color:#4d5a53}
    .more-panel a:hover{background:var(--sand);color:var(--ink)}
    .nav-action{display:flex;gap:10px;align-items:center}
    .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.more-toggle:focus-visible,.menu-btn:focus-visible,a:focus-visible{outline:3px solid rgba(183,238,84,.65);outline-offset:3px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:var(--lime-deep);box-shadow:0 8px 20px rgba(183,238,84,.25)}
    .btn-outline{border-color:#9da9a1;background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    .btn-dark{border-color:#58655e;color:var(--white);background:transparent}
    .btn-dark:hover{background:#29362f;border-color:#8d9a91}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px}
    .menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0;transition:var(--ease)}
    .mobile-menu{display:none}
    .article-hero{position:relative;padding:58px 0 54px;background:var(--mist);overflow:hidden;border-bottom:1px solid var(--line)}
    .article-hero:before{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(23,33,29,.12);border-radius:50%;right:-105px;top:-188px;box-shadow:0 0 0 30px rgba(23,33,29,.035),0 0 0 68px rgba(23,33,29,.025)}
    .article-hero:after{content:"";position:absolute;inset:0;opacity:.28;background-image:radial-gradient(circle,rgba(23,33,29,.23) 1px,transparent 1.2px);background-size:20px 20px;mask-image:linear-gradient(90deg,transparent 30%,#000 100%)}
    .breadcrumbs{position:relative;z-index:1;display:flex;align-items:center;gap:9px;margin-bottom:20px;color:#657169;font-size:13px}
    .breadcrumbs a{transition:color var(--ease)}
    .breadcrumbs a:hover{color:var(--ink)}
    .crumb-sep{color:#8b968e}
    .article-category{position:relative;z-index:1;display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border-radius:99px;background:rgba(255,255,255,.72);border:1px solid rgba(23,33,29,.12);color:#445149;font-size:13px;font-weight:800}
    .article-category:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime-deep)}
    .article-hero h1{position:relative;z-index:1;max-width:820px;margin:16px 0 16px;font-size:46px;line-height:1.2;letter-spacing:-.045em;color:var(--ink)}
    .article-summary{position:relative;z-index:1;max-width:790px;margin:0;color:#506057;font-size:17px;line-height:1.8}
    .article-meta{position:relative;z-index:1;margin-top:24px;display:flex;align-items:center;flex-wrap:wrap;gap:10px 22px;color:#5f6c64;font-size:13px}
    .article-meta span{display:inline-flex;align-items:center;gap:7px}
    .article-meta svg{width:15px;height:15px;stroke:currentColor}
    .article-shell{padding:42px 0 88px}
    .article-info{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 30px rgba(23,33,29,.035)}
    .info-cell{min-height:83px;padding:16px 21px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}
    .info-cell:last-child{border-right:0}
    .info-label{font-size:12px;color:var(--muted);margin-bottom:3px}
    .info-value{font-size:14px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
    .reading-layout{display:grid;grid-template-columns:200px minmax(0,800px);justify-content:center;gap:52px;margin-top:48px}
    .toc-panel{position:sticky;top:122px;align-self:start;padding:18px;border:1px solid var(--line);border-radius:14px;background:#f0f3ee}
    .toc-title{display:flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--ink);font-size:14px;font-weight:800}
    .toc-title svg{width:17px;height:17px}
    .toc-list{list-style:none;margin:0;padding:0;max-height:440px;overflow:auto}
    .toc-list li{margin:0}
    .toc-list a{display:block;padding:7px 8px;border-radius:7px;color:#657169;font-size:13px;line-height:1.5;transition:var(--ease)}
    .toc-list a:hover,.toc-list a.current{background:#fff;color:var(--ink)}
    .toc-empty{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .article-content{min-width:0;font-size:17px;line-height:1.95;color:#27332d}
    .article-content>*:first-child{margin-top:0}
    .article-content h2{margin:52px 0 19px;padding-top:8px;color:var(--ink);font-size:30px;line-height:1.35;letter-spacing:-.03em;scroll-margin-top:120px}
    .article-content h3{margin:36px 0 14px;color:var(--ink);font-size:22px;line-height:1.45;scroll-margin-top:120px}
    .article-content p{margin:0 0 23px}
    .article-content ul,.article-content ol{margin:0 0 25px;padding-left:1.5em}
    .article-content li{margin:8px 0;padding-left:4px}
    .article-content blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--lime-deep);border-radius:0 12px 12px 0;background:#edf2e9;color:#435148}
    .article-content img{margin:30px auto;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
    .article-content figure{margin:30px 0}
    .article-content figcaption{margin-top:10px;color:var(--muted);font-size:13px;text-align:center}
    .article-content table{display:table;width:100%;margin:28px 0;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
    .article-content th,.article-content td{padding:12px 14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);vertical-align:top}
    .article-content th{background:#edf1eb;color:var(--ink);font-weight:800}
    .article-content tr:last-child td{border-bottom:0}
    .article-content th:last-child,.article-content td:last-child{border-right:0}
    .article-content pre{margin:25px 0;padding:18px;border-radius:12px;background:var(--ink);color:#e5eee5;overflow:auto;font-size:13px;line-height:1.7}
    .article-content code{padding:2px 5px;border-radius:5px;background:#e8ede6;color:#37443d;font-size:.88em}
    .article-content pre code{padding:0;background:transparent;color:inherit}
    .article-content .notice,.article-content .alert,.article-content .warning{margin:28px 0;padding:16px 18px;border:1px solid #edc59e;border-radius:13px;background:#fff2e7;color:#684324}
    .content-missing{padding:56px 30px;border:1px dashed #b9c3b9;border-radius:var(--radius);background:#fff;text-align:center}
    .content-missing svg{width:42px;height:42px;margin:0 auto 14px;color:var(--orange)}
    .content-missing h2{margin:0 0 8px;font-size:22px}
    .content-missing p{margin:0 0 20px;color:var(--muted)}
    .article-aside{margin-top:54px}
    .download-prompt{display:flex;align-items:center;gap:20px;padding:22px 24px;border-radius:var(--radius-lg);background:var(--ink);color:#fff;overflow:hidden;position:relative}
    .download-prompt:after{content:"";position:absolute;right:-26px;top:-42px;width:160px;height:160px;border:1px solid rgba(183,238,84,.4);border-radius:50%;box-shadow:0 0 0 22px rgba(183,238,84,.08)}
    .prompt-icon{width:51px;height:51px;flex:0 0 51px;border-radius:14px;background:var(--lime);color:var(--ink);display:grid;place-items:center;position:relative;z-index:1}
    .prompt-icon svg{width:25px;height:25px}
    .prompt-copy{position:relative;z-index:1;flex:1}
    .prompt-copy h2{margin:0 0 3px;font-size:18px}
    .prompt-copy p{margin:0;color:#c7d3c9;font-size:14px}
    .download-prompt .btn{position:relative;z-index:1;flex:0 0 auto}
    .related-section{margin-top:68px;padding-top:55px;border-top:1px solid var(--line)}
    .section-kicker{display:flex;align-items:center;gap:9px;margin-bottom:8px;color:#58665e;font-size:13px;font-weight:800}
    .section-kicker:before{content:"";width:22px;height:2px;background:var(--lime-deep)}
    .related-section h2{margin:0;font-size:30px;line-height:1.25;letter-spacing:-.035em}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
    .related-card{display:flex;min-height:194px;padding:22px;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
    .related-card:hover{transform:translateY(-4px);border-color:#a8b7a8;box-shadow:var(--shadow-hover)}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 8px;border-radius:7px;background:#eef3e9;color:#536640;font-size:12px;font-weight:800}
    .related-card h3{margin:14px 0 10px;font-size:18px;line-height:1.5;color:var(--ink)}
    .related-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .related-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;color:#758078;font-size:12px}
    .related-arrow{color:var(--ink);font-size:19px;line-height:1;transition:transform var(--ease)}
    .related-card:hover .related-arrow{transform:translateX(4px)}
    .article-end{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:54px;padding:26px 28px;border-radius:var(--radius);background:#e9eee7}
    .article-end h2{margin:0 0 4px;font-size:20px}
    .article-end p{margin:0;color:var(--muted);font-size:14px}
    .end-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    footer{padding:64px 0 22px;background:var(--ink);color:#d4ddd5}
    .footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:38px}
    .footer-brand p{max-width:310px;margin:17px 0 0;color:#aebbb1;font-size:14px;line-height:1.8}
    .footer-title{margin-bottom:13px;color:#fff;font-size:14px;font-weight:800}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#b8c4ba;font-size:14px;transition:color var(--ease)}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;margin-top:50px;padding-top:20px;border-top:1px solid rgba(221,227,217,.16);color:#94a299;font-size:12px}
    .footer-bottom a:hover{color:var(--lime)}
    @media (max-width:1100px){
      .nav-links{gap:0}
      .nav-links>a,.more-toggle{padding:9px 7px;font-size:13px}
      .brand{min-width:215px}
      .reading-layout{grid-template-columns:176px minmax(0,760px);gap:30px}
    }
    @media (max-width:900px){
      .nav-links{display:none}
      .menu-btn{display:block}
      .mobile-menu{position:fixed;inset:0;z-index:90;padding:22px 24px;background:var(--sand);transform:translateX(100%);transition:transform 240ms ease;display:flex;flex-direction:column}
      .mobile-menu.open{transform:translateX(0)}
      .mobile-menu-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid var(--line)}
      .mobile-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:24px;line-height:1}
      .mobile-nav{display:flex;flex-direction:column;gap:4px;padding:24px 0}
      .mobile-nav a{padding:13px 12px;border-radius:10px;font-weight:700}
      .mobile-nav a:hover,.mobile-nav a.active{background:var(--mist)}
      .mobile-menu .btn{margin-top:auto;width:100%}
      .article-hero h1{font-size:40px}
      .article-info{grid-template-columns:repeat(2,1fr)}
      .info-cell:nth-child(2){border-right:0}
      .info-cell:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .reading-layout{grid-template-columns:1fr;margin-top:32px}
      .toc-panel{position:relative;top:auto}
      .toc-list{display:grid;grid-template-columns:repeat(2,1fr);max-height:none}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2 / 4}
    }
    @media (max-width:640px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .topbar .container{justify-content:center}
      .topbar-right{display:none}
      .navbar{height:66px}
      .brand{min-width:0}
      .brand-note{display:none}
      .nav-action .btn{display:none}
      .article-hero{padding:38px 0 40px}
      .breadcrumbs{margin-bottom:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
      .article-hero h1{margin:14px 0;font-size:32px;line-height:1.28}
      .article-summary{font-size:15px;line-height:1.75}
      .article-meta{gap:8px 14px}
      .article-shell{padding:25px 0 60px}
      .article-info{grid-template-columns:1fr 1fr}
      .info-cell{min-height:72px;padding:13px 15px}
      .article-content{font-size:16px;line-height:1.9}
      .article-content h2{margin-top:40px;font-size:25px}
      .article-content h3{font-size:20px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .toc-list{grid-template-columns:1fr}
      .download-prompt{align-items:flex-start;flex-wrap:wrap;padding:20px}
      .download-prompt .btn{width:100%}
      .related-section{margin-top:48px;padding-top:42px}
      .related-section h2{font-size:26px}
      .related-grid{grid-template-columns:1fr}
      .related-card{min-height:160px}
      .article-end{align-items:flex-start;flex-direction:column;padding:22px}
      .end-actions{width:100%}
      .end-actions .btn{flex:1}
      footer{padding-top:48px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}
      .footer-brand{grid-column:1 / -1}
      .footer-grid>div:last-child{grid-column:auto}
      .footer-bottom{flex-direction:column;margin-top:36px}
    }
    @media (max-width:420px){
      .article-info{grid-template-columns:1fr}
      .info-cell,.info-cell:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}
      .info-cell:last-child{border-bottom:0}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }
    @media (prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
    }

/* roulang page: category1 */
:root{
      --ink:#17211D;--ink-2:#25342D;--lime:#B7EE54;--lime-deep:#9ed63e;--sand:#F6F5F0;
      --mist:#DDE3D9;--white:#fff;--text:#1E2924;--muted:#64716A;--line:#D6DDD4;
      --orange:#E8843D;--green:#4C9B6C;--radius:16px;--radius-lg:22px;
      --shadow:0 16px 42px rgba(23,33,29,.08);--shadow-hover:0 22px 48px rgba(23,33,29,.14);
      --container:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--sand);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    :focus-visible{outline:3px solid rgba(183,238,84,.85);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .topbar{height:32px;background:var(--ink);color:#dce6dd;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-left{display:flex;align-items:center;gap:9px}
    .topbar-dot{width:6px;height:6px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 4px rgba(183,238,84,.12)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.96);border-bottom:1px solid transparent;transition:var(--ease);backdrop-filter:blur(12px)}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 22px rgba(23,33,29,.06)}
    .navbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--ink);display:grid;place-items:center;position:relative;overflow:hidden;flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:18px;height:18px}
    .brand-mark:after{width:8px;height:8px;background:var(--lime)}
    .brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.25}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links>a,.more-toggle{border:0;background:none;padding:10px 11px;border-radius:9px;color:#445049;font-size:14px;white-space:nowrap;transition:var(--ease)}
    .nav-links>a:hover,.nav-links>a.active,.more-toggle:hover{color:var(--ink);background:var(--mist)}
    .more-wrap{position:relative}
    .more-panel{position:absolute;right:0;top:calc(100% + 10px);display:none;width:230px;padding:9px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);grid-template-columns:1fr 1fr;gap:3px}
    .more-wrap.open .more-panel{display:grid}
    .more-panel a{font-size:13px;padding:8px;border-radius:7px;color:#4d5a53}
    .more-panel a:hover{background:var(--sand);color:var(--ink)}
    .nav-action{display:flex;gap:10px;align-items:center}
    .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:var(--lime-deep);box-shadow:0 8px 20px rgba(183,238,84,.25)}
    .btn-outline{border-color:#9da9a1;background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    .btn-dark{border-color:#58655e;color:var(--white);background:transparent}
    .btn-dark:hover{background:#29362f;border-color:#8d9a91}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px}
    .menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0}
    .mobile-menu{display:none}
    section{padding:84px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#526058;font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime-deep)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head h2{margin:8px 0 0;font-size:34px;letter-spacing:-.04em;line-height:1.2}
    .section-head p{max-width:480px;margin:0;color:var(--muted);font-size:15px}
    .page-hero{padding:46px 0 56px;background:var(--mist);position:relative;overflow:hidden;border-bottom:1px solid rgba(115,134,119,.18)}
    .page-hero:before{content:"";position:absolute;inset:0;opacity:.42;background-image:radial-gradient(circle,rgba(36,54,45,.19) 1px,transparent 1px);background-size:20px 20px;mask-image:linear-gradient(90deg,transparent,black 35%,black 72%,transparent)}
    .hero-inner{position:relative}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumb span{color:#94a098}
    .breadcrumb a:hover{color:var(--ink);text-decoration:underline}
    .page-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:48px;align-items:end}
    .page-hero h1{margin:10px 0 14px;font-size:52px;letter-spacing:-.055em;line-height:1.12}
    .page-hero p{max-width:680px;margin:0;color:#526058;font-size:17px}
    .updated-box{padding:20px;border-left:2px solid var(--lime-deep);background:rgba(255,255,255,.66);border-radius:0 var(--radius) var(--radius) 0}
    .updated-box span{display:block;color:var(--muted);font-size:12px}
    .updated-box strong{display:block;margin-top:4px;font-size:16px}
    .notice-index{padding:25px 0;background:#fff;border-bottom:1px solid var(--line)}
    .index-row{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .index-label{font-size:14px;font-weight:800;white-space:nowrap}
    .filter-tags{display:flex;gap:9px;flex-wrap:wrap}
    .filter-tags button{border:1px solid var(--line);border-radius:999px;padding:8px 14px;background:#fff;color:#536058;font-size:13px;transition:var(--ease)}
    .filter-tags button:hover,.filter-tags button.active{border-color:var(--ink);background:var(--ink);color:#fff}
    .featured-card{display:grid;grid-template-columns:220px 1fr;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow)}
    .featured-date{min-height:250px;padding:30px;background:var(--ink);color:#fff;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .featured-date:after{content:"";width:130px;height:130px;border:1px solid rgba(183,238,84,.55);border-radius:50%;position:absolute;right:-44px;bottom:-42px}
    .featured-date b{font-size:56px;line-height:1;font-variant-numeric:tabular-nums;color:var(--lime)}
    .featured-date span{font-size:14px;color:#d5dfd6}
    .featured-content{padding:31px 36px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
    .tag{display:inline-flex;align-items:center;min-height:26px;padding:3px 10px;border-radius:999px;background:#eaf1e4;color:#48612e;font-size:12px;font-weight:800}
    .tag.notice{background:#e5ece4;color:#405a48}
    .tag.update{background:#eef0e5;color:#64752e}
    .tag.activity{background:#fff0e7;color:#a85923}
    .featured-content h2{font-size:26px;line-height:1.35;margin:14px 0 10px;letter-spacing:-.03em}
    .featured-content p{margin:0 0 18px;color:var(--muted);max-width:730px}
    .article-link{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:14px;font-weight:800}
    .article-link svg{transition:transform var(--ease)}
    .article-link:hover{color:#557d23}
    .article-link:hover svg{transform:translateX(4px)}
    .notice-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:48px}
    .notice-list{border-top:1px solid var(--line)}
    .notice-item{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line);transition:var(--ease)}
    .notice-item:hover{padding-left:12px;background:rgba(221,227,217,.3)}
    .notice-time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
    .notice-item h3{font-size:19px;line-height:1.4;margin:8px 0 6px;letter-spacing:-.02em}
    .notice-item p{margin:0;color:var(--muted);font-size:14px;max-width:660px}
    .read-icon{width:40px;height:40px;border:1px solid var(--line);display:grid;place-items:center;border-radius:50%;color:var(--ink);transition:var(--ease)}
    .notice-item:hover .read-icon{background:var(--lime);border-color:var(--lime)}
    .list-more{margin-top:28px}
    .notice-aside{padding:25px;background:#edf1eb;border-radius:var(--radius);align-self:start}
    .notice-aside h3{margin:0 0 13px;font-size:18px}
    .notice-aside p{margin:0;color:var(--muted);font-size:14px}
    .notice-aside ul{padding:0;margin:18px 0 0;list-style:none}
    .notice-aside li{padding:11px 0;border-top:1px solid rgba(104,122,108,.2);font-size:13px;color:#47544d}
    .notice-aside li:before{content:"";display:inline-block;width:7px;height:7px;background:var(--lime-deep);border-radius:50%;margin-right:9px}
    .guidance{background:#fff}
    .guidance-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .guide-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--sand)}
    .guide-icon{width:46px;height:46px;border-radius:13px;background:var(--ink);display:grid;place-items:center;color:var(--lime);margin-bottom:22px}
    .guide-card h3{margin:0 0 8px;font-size:20px}
    .guide-card p{margin:0;color:var(--muted);font-size:15px}
    .timeline-wrap{display:grid;grid-template-columns:320px 1fr;gap:64px;align-items:start}
    .timeline-intro{position:sticky;top:110px}
    .timeline-intro h2{font-size:34px;line-height:1.25;margin:10px 0 14px;letter-spacing:-.04em}
    .timeline-intro p{margin:0;color:var(--muted)}
    .timeline{position:relative;padding-left:28px}
    .timeline:before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:1px;background:#bac6bb}
    .timeline-item{position:relative;padding:0 0 29px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;left:-28px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--lime);border:3px solid var(--sand);box-shadow:0 0 0 1px #96a797}
    .timeline-item time{font-size:13px;font-weight:800;color:#506358;font-variant-numeric:tabular-nums}
    .timeline-item h3{margin:4px 0 4px;font-size:18px}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .support-panel{padding:37px 42px;background:var(--ink);color:#fff;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
    .support-panel:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;border:1px solid rgba(183,238,84,.25);right:-120px;top:-220px}
    .support-panel>div{position:relative}
    .support-panel h2{margin:0 0 8px;font-size:29px;letter-spacing:-.035em}
    .support-panel p{margin:0;color:#c7d2c8;max-width:650px}
    footer{padding:64px 0 24px;background:var(--ink);color:#d3ded4}
    .footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:42px;padding-bottom:46px}
    .footer-brand p{max-width:300px;margin:18px 0 0;color:#aebbb0;font-size:14px}
    footer .brand{min-width:0}
    footer .brand-note{color:#9daca0}
    .footer-title{margin:4px 0 15px;color:#fff;font-weight:800;font-size:14px}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{font-size:13px;color:#aebbb0;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid rgba(221,227,217,.15);padding-top:22px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#91a095}
    .footer-bottom a:hover{color:#fff}
    @media(max-width:1100px){
      .nav-links{gap:0}.nav-links>a,.more-toggle{padding:10px 8px;font-size:13px}.brand{min-width:220px}
      .notice-layout{gap:30px}.page-hero-grid{gap:28px}
    }
    @media(max-width:900px){
      .nav-links{display:none}.navbar{height:68px}.menu-btn{display:block}.brand{min-width:0}
      .mobile-menu{position:fixed;inset:0;z-index:70;background:var(--sand);padding:22px 24px;transform:translateX(100%);transition:transform 240ms ease;display:block}
      .mobile-menu.open{transform:translateX(0)}
      .mobile-menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:35px}
      .close-menu{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:24px;line-height:1}
      .mobile-menu nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
      .mobile-menu nav a{padding:16px 4px;border-bottom:1px solid var(--line);font-weight:800}
      .mobile-menu .btn{width:100%;margin-top:25px}
      .page-hero h1{font-size:43px}.notice-layout{grid-template-columns:1fr}.notice-aside{display:none}
      .timeline-wrap{grid-template-columns:1fr;gap:30px}.timeline-intro{position:static}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:700px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .topbar .container span:last-child{display:none}.nav-action .btn{display:none}
      section{padding:62px 0}.page-hero{padding:37px 0 42px}.page-hero-grid{grid-template-columns:1fr}
      .updated-box{max-width:260px}.page-hero h1{font-size:36px}.page-hero p{font-size:15px}
      .index-row{align-items:flex-start;flex-direction:column}.featured-card{grid-template-columns:1fr}
      .featured-date{min-height:126px;padding:22px;flex-direction:row;align-items:center}.featured-date b{font-size:47px}
      .featured-content{padding:26px 22px}.featured-content h2{font-size:22px}
      .section-head{display:block;margin-bottom:24px}.section-head h2{font-size:28px}.section-head p{margin-top:12px}
      .notice-item{grid-template-columns:1fr auto;gap:12px;padding:21px 0}.notice-time{grid-column:1/-1}.notice-item p{font-size:13px}.read-icon{grid-column:2;grid-row:2;width:36px;height:36px}
      .notice-copy{grid-column:1;grid-row:2}.guidance-grid{grid-template-columns:1fr}.guide-card{padding:24px}
      .support-panel{padding:30px 25px;display:block}.support-panel h2{font-size:25px}.support-panel .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block;line-height:2}.footer-bottom span:last-child{display:block;margin-top:6px}
    }
    @media(max-width:430px){
      .brand-note{display:none}.page-hero h1{font-size:32px}.filter-tags{gap:7px}.filter-tags button{padding:7px 11px}
      .featured-content h2{font-size:20px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
      --ink:#17211D;--ink-2:#25342D;--lime:#B7EE54;--lime-deep:#9ed63e;--sand:#F6F5F0;
      --mist:#DDE3D9;--white:#fff;--text:#1E2924;--muted:#64716A;--line:#D6DDD4;
      --orange:#E8843D;--green:#4C9B6C;--radius:16px;--radius-lg:22px;
      --shadow:0 16px 42px rgba(23,33,29,.08);--shadow-hover:0 22px 48px rgba(23,33,29,.14);
      --container:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--sand);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    :focus-visible{outline:3px solid rgba(183,238,84,.8);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .topbar{height:32px;background:var(--ink);color:#dce6dd;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-left{display:flex;align-items:center;gap:9px}
    .topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(183,238,84,.12)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.96);border-bottom:1px solid transparent;transition:var(--ease);backdrop-filter:blur(12px)}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 22px rgba(23,33,29,.06)}
    .navbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--ink);display:grid;place-items:center;position:relative;overflow:hidden;flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:18px;height:18px}
    .brand-mark:after{width:8px;height:8px;background:var(--lime)}
    .brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.25}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links>a,.more-toggle{border:0;background:none;padding:10px 11px;border-radius:9px;color:#445049;font-size:14px;white-space:nowrap;transition:var(--ease)}
    .nav-links>a:hover,.nav-links>a.active,.more-toggle:hover{color:var(--ink);background:var(--mist)}
    .more-wrap{position:relative}
    .more-panel{position:absolute;right:0;top:calc(100% + 12px);width:260px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:none;grid-template-columns:1fr 1fr;gap:3px;z-index:5}
    .more-wrap.open .more-panel{display:grid}
    .more-panel a{font-size:13px;padding:8px;border-radius:7px;color:#4d5a53}
    .more-panel a:hover{background:var(--sand);color:var(--ink)}
    .nav-action{display:flex;gap:10px;align-items:center}
    .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:var(--lime-deep);box-shadow:0 8px 20px rgba(183,238,84,.25)}
    .btn-outline{border-color:#9da9a1;background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    .btn-dark{border-color:#58655e;color:var(--white);background:transparent}
    .btn-dark:hover{background:#29362f;border-color:#8d9a91}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px}
    .menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0}
    .mobile-menu{display:none}
    section{padding:88px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#526058;font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime-deep)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .section-head h2{margin:8px 0 0;font-size:34px;letter-spacing:-.04em;line-height:1.2}
    .section-head p{max-width:480px;margin:0;color:var(--muted);font-size:15px}
    .page-head{padding:66px 0 62px;background:#eaf0e8;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
    .page-head:before{content:"";position:absolute;inset:0;opacity:.42;background-image:linear-gradient(rgba(78,103,86,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(78,103,86,.12) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(90deg,#000,transparent 80%)}
    .page-head .container{position:relative}
    .crumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:22px}
    .crumbs span{color:#93a097}
    .page-head h1{margin:0;font-size:48px;letter-spacing:-.055em;line-height:1.12}
    .page-head p{max-width:690px;margin:17px 0 0;color:#506057;font-size:17px}
    .page-meta{display:inline-flex;align-items:center;gap:8px;margin-top:22px;padding:7px 11px;border:1px solid #c4d0c3;border-radius:999px;background:rgba(255,255,255,.65);font-size:12px;color:#526058}
    .page-meta i{width:7px;height:7px;background:var(--green);border-radius:50%}
    .anchor-nav{padding:20px 0;background:#fff;border-bottom:1px solid var(--line)}
    .anchor-inner{display:flex;align-items:center;gap:10px;overflow:auto;padding-bottom:2px}
    .anchor-label{font-size:13px;font-weight:800;color:var(--muted);white-space:nowrap;margin-right:5px}
    .anchor-link{white-space:nowrap;padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:#506057;transition:var(--ease)}
    .anchor-link:hover{background:var(--ink);border-color:var(--ink);color:#fff}
    .feature-banner{display:grid;grid-template-columns:1.08fr .92fr;min-height:364px;background:var(--ink);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
    .feature-content{padding:48px;color:#fff;display:flex;flex-direction:column;justify-content:center}
    .feature-content .eyebrow{color:#ced8d0}.feature-content .eyebrow:before{background:var(--lime)}
    .feature-content h2{font-size:34px;line-height:1.2;letter-spacing:-.04em;margin:14px 0}
    .feature-content p{margin:0;color:#cad5cc;max-width:540px}
    .feature-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
    .tag{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:999px;background:#edf2eb;color:#506057;font-size:12px;font-weight:700}
    .tag.lime{background:rgba(183,238,84,.18);color:#d7fa95;border:1px solid rgba(183,238,84,.28)}
    .tag.mist{background:#e3ebe0;color:#435247}.tag.orange{background:#fae4d1;color:#98501f}
    .feature-visual{position:relative;background:#25342d;overflow:hidden}
    .feature-visual:before{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(183,238,84,.3);border-radius:50%;right:-85px;top:-90px}
    .screen-frame{position:absolute;right:12%;bottom:-45px;width:275px;height:360px;border:9px solid #111915;border-bottom-width:0;border-radius:28px 28px 0 0;background:#f4f6f1;box-shadow:0 18px 42px rgba(0,0,0,.3);padding:18px}
    .screen-notch{width:78px;height:15px;border-radius:0 0 10px 10px;background:#111915;position:absolute;top:0;left:50%;transform:translateX(-50%)}
    .screen-header{height:17px;width:47%;border-radius:8px;background:#cbd7ca;margin:15px 0 19px}
    .screen-bar{height:44px;border-radius:12px;background:var(--ink);margin-bottom:12px}
    .screen-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .screen-tile{height:80px;border-radius:13px;background:#dfe7dc;position:relative;overflow:hidden}
    .screen-tile:after{content:"";position:absolute;left:12px;bottom:13px;width:42%;height:7px;border-radius:6px;background:#a6b9a8}
    .screen-tile.accent{background:var(--lime)}
    .screen-line{height:9px;border-radius:8px;background:#d2ddd0;margin-top:12px}
    .screen-line.short{width:65%}
    .signal-card{position:absolute;left:9%;top:64px;padding:13px 15px;border:1px solid rgba(221,227,217,.22);border-radius:13px;background:rgba(255,255,255,.1);color:#e9f1e9;font-size:12px;backdrop-filter:blur(5px)}
    .signal-card b{display:block;color:var(--lime);font-size:14px;margin-bottom:2px}
    .experience-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .experience-stack{display:grid;gap:16px}
    .experience-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:27px;min-height:210px;display:flex;flex-direction:column;position:relative;overflow:hidden;transition:var(--ease)}
    .experience-card:hover{transform:translateY(-4px);border-color:#adbcae;box-shadow:var(--shadow-hover)}
    .experience-card.soft{background:#eaf0e8}.experience-card.dark{background:var(--ink);color:#fff}.experience-card.dark p{color:#c8d4cb}.experience-card.dark .card-arrow{border-color:#637168;color:var(--lime)}
    .experience-card.tall{min-height:436px;justify-content:flex-end;background:#fff}
    .card-index{font-size:12px;font-weight:800;color:#718077;letter-spacing:.08em}
    .experience-card h3{font-size:22px;line-height:1.3;margin:14px 0 10px;letter-spacing:-.025em}
    .experience-card p{margin:0;color:var(--muted);font-size:15px;max-width:450px}
    .card-bottom{margin-top:auto;padding-top:21px;display:flex;justify-content:space-between;align-items:center}
    .card-arrow{width:38px;height:38px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;transition:var(--ease)}
    .experience-card:hover .card-arrow{background:var(--lime);border-color:var(--lime);color:var(--ink)}
    .mini-ui{position:absolute;right:24px;top:26px;width:170px;padding:12px;border:1px solid #d3ddd1;border-radius:14px;background:#f5f7f2;transform:rotate(4deg)}
    .mini-ui .m-line{height:8px;border-radius:9px;background:#ccd8ca;margin:7px 0}.mini-ui .m-line.dark{background:var(--ink);height:29px}.mini-ui .m-line.lime{background:var(--lime);width:60%}
    .big-orbit{position:absolute;width:240px;height:240px;border:1px solid #cad7c9;border-radius:50%;right:-75px;top:-69px}
    .big-orbit:after{content:"";width:38px;height:38px;background:var(--lime);border-radius:50%;position:absolute;left:14px;bottom:21px}
    .detail-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}
    .detail-intro h2{font-size:34px;line-height:1.22;margin:10px 0 15px;letter-spacing:-.04em}
    .detail-intro p{color:var(--muted);margin:0}
    .number-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
    .number-list li{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:23px 0;border-bottom:1px solid var(--line)}
    .number-list b{font-size:14px;color:#607067;font-variant-numeric:tabular-nums}
    .number-list h3{font-size:18px;margin:0 0 5px}.number-list p{margin:0;color:var(--muted);font-size:14px}
    .shot-section{background:#eef2ec;overflow:hidden}
    .shot-rail{display:flex;gap:17px;overflow-x:auto;padding:3px 2px 16px;scroll-snap-type:x mandatory}
    .shot{flex:0 0 270px;scroll-snap-align:start;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 8px 20px rgba(23,33,29,.05);cursor:pointer;transition:var(--ease)}
    .shot:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .shot-view{height:210px;background:#dce6da;position:relative;padding:20px}
    .shot:nth-child(2) .shot-view{background:#25342d}.shot:nth-child(3) .shot-view{background:#e9ddd0}.shot:nth-child(4) .shot-view{background:#dfe8de}
    .shot-screen{height:100%;border:6px solid #17211d;border-radius:17px;background:#f8faf6;padding:14px}
    .shot:nth-child(2) .shot-screen{background:#eff6ed}.shot:nth-child(3) .shot-screen{background:#f9f5ed}
    .shot-top{height:12px;width:54%;border-radius:8px;background:#cbd6c9;margin-bottom:15px}.shot-banner{height:54px;border-radius:10px;background:var(--ink);margin-bottom:10px}.shot:nth-child(2) .shot-banner{background:var(--lime)}.shot:nth-child(3) .shot-banner{background:var(--orange)}
    .shot-cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}.shot-cols span{height:42px;background:#dce6da;border-radius:7px}
    .shot-caption{padding:14px 16px 16px;font-size:14px;font-weight:800}.shot-caption small{display:block;color:var(--muted);font-size:12px;font-weight:500;margin-top:2px}
    .faq-wrap{max-width:910px;margin:auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;padding:21px 4px;border:0;background:transparent;display:flex;align-items:center;justify-content:space-between;text-align:left;color:var(--text);font-size:17px;font-weight:800}
    .faq-icon{width:28px;height:28px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--muted);font-weight:400;transition:var(--ease)}
    .faq-item.open .faq-icon{background:var(--lime);border-color:var(--lime);color:var(--ink);transform:rotate(45deg)}
    .faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows 220ms ease}
    .faq-answer>div{overflow:hidden}.faq-answer p{margin:0;padding:0 42px 21px 4px;color:var(--muted);font-size:15px}
    .faq-item.open .faq-answer{grid-template-rows:1fr}
    .support-panel{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:43px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
    .support-panel:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(183,238,84,.3);border-radius:50%;right:-100px;bottom:-180px}
    .support-panel h2{font-size:30px;margin:0 0 9px;letter-spacing:-.035em}.support-panel p{margin:0;color:#cbd6cd;max-width:600px}.support-panel .btn{position:relative;z-index:1;white-space:nowrap}
    footer{background:var(--ink);color:#d8e2d9;padding:64px 0 22px;margin-top:0}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.15fr;gap:42px;padding-bottom:50px}
    .footer-brand .brand{min-width:0}.footer-brand p{max-width:340px;margin:19px 0 0;color:#b7c4ba;font-size:13px}
    .footer-title{font-weight:800;color:#fff;font-size:14px;margin:5px 0 15px}
    .footer-links{display:grid;gap:9px}.footer-links a{color:#b7c4ba;font-size:13px;transition:var(--ease)}.footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid rgba(221,227,217,.16);padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#9fac9f;font-size:12px}.footer-bottom a:hover{color:var(--lime)}
    .lightbox{position:fixed;inset:0;z-index:100;background:rgba(15,22,18,.78);display:none;align-items:center;justify-content:center;padding:24px}.lightbox.open{display:flex}
    .lightbox-card{width:min(520px,100%);background:var(--sand);border-radius:20px;padding:20px;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.32)}
    .lightbox-close{position:absolute;right:13px;top:13px;width:36px;height:36px;border:1px solid var(--line);border-radius:50%;background:#fff;font-size:20px}.lightbox-preview{height:350px;border-radius:14px;background:#dbe5d8;padding:30px}.lightbox-preview .shot-screen{height:100%}
    @media(max-width:1100px){.brand{min-width:210px}.nav-links>a,.more-toggle{padding:9px 7px;font-size:13px}.feature-banner{grid-template-columns:1fr .8fr}.detail-layout{gap:38px}.footer-grid{gap:25px}}
    @media(max-width:900px){.nav-links{display:none}.menu-btn{display:block}.mobile-menu{position:fixed;z-index:70;inset:0;background:var(--sand);padding:22px 24px;transform:translateX(100%);transition:transform 240ms ease;display:block}.mobile-menu.open{transform:translateX(0)}.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}.mobile-menu-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:24px}.mobile-menu a{display:block;padding:15px 3px;border-bottom:1px solid var(--line);font-weight:800}.mobile-menu .btn{margin-top:25px;width:100%}.experience-grid,.detail-layout{grid-template-columns:1fr}.experience-card.tall{min-height:300px}.detail-intro{max-width:620px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.page-head h1{font-size:42px}}
    @media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}section{padding:64px 0}.topbar-right{display:none}.navbar{height:66px}.brand{min-width:0}.brand-note{display:none}.nav-action .btn{display:none}.page-head{padding:48px 0}.page-head h1{font-size:35px}.page-head p{font-size:15px}.section-head{display:block;margin-bottom:25px}.section-head h2{font-size:28px}.section-head p{margin-top:12px}.feature-banner{grid-template-columns:1fr}.feature-content{padding:36px 28px}.feature-content h2{font-size:28px}.feature-visual{height:260px}.screen-frame{right:14%;width:225px;height:285px}.signal-card{left:7%;top:38px}.experience-card{min-height:196px}.experience-card.tall{min-height:270px}.support-panel{display:block;padding:34px 28px}.support-panel .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span+span{display:block;margin-top:9px}}
    @media(max-width:520px){.topbar{font-size:11px}.page-head h1{font-size:32px}.crumbs{font-size:12px}.anchor-nav{padding:14px 0}.feature-content{padding:31px 22px}.feature-content h2{font-size:25px}.experience-grid{gap:12px}.experience-stack{gap:12px}.experience-card{padding:22px}.mini-ui{width:135px;right:15px;top:17px}.experience-card h3{font-size:20px}.detail-layout{gap:28px}.number-list li{grid-template-columns:42px 1fr;gap:11px}.shot{flex-basis:240px}.footer-grid{gap:27px}.footer-bottom{font-size:11px}.support-panel h2{font-size:26px}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category3 */
:root{
      --ink:#17211D;--ink-2:#25342D;--lime:#B7EE54;--lime-deep:#9ed63e;--sand:#F6F5F0;
      --mist:#DDE3D9;--white:#fff;--text:#1E2924;--muted:#64716A;--line:#D6DDD4;
      --orange:#E8843D;--green:#4C9B6C;--radius:16px;--radius-lg:22px;
      --shadow:0 16px 42px rgba(23,33,29,.08);--shadow-hover:0 22px 48px rgba(23,33,29,.14);
      --container:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--sand);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .topbar{height:32px;background:var(--ink);color:#dce6dd;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-left{display:flex;align-items:center;gap:9px}
    .signal{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(183,238,84,.12)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.96);border-bottom:1px solid transparent;transition:var(--ease);backdrop-filter:blur(12px)}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 22px rgba(23,33,29,.06)}
    .navbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--ink);display:grid;place-items:center;position:relative;overflow:hidden;flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:18px;height:18px}
    .brand-mark:after{width:8px;height:8px;background:var(--lime)}
    .brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.25}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links>a,.more-toggle{border:0;background:none;padding:10px 11px;border-radius:9px;color:#445049;font-size:14px;white-space:nowrap;transition:var(--ease)}
    .nav-links>a:hover,.nav-links>a.active,.more-toggle:hover{color:var(--ink);background:var(--mist)}
    .more-wrap{position:relative}
    .more-panel{position:absolute;top:calc(100% + 12px);right:0;width:300px;padding:10px;display:none;grid-template-columns:1fr 1fr;gap:3px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
    .more-wrap.open .more-panel{display:grid}
    .more-panel a{font-size:13px;padding:8px;border-radius:7px;color:#4d5a53}
    .more-panel a:hover{background:var(--sand);color:var(--ink)}
    .nav-action{display:flex;gap:10px;align-items:center}
    .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.more-toggle:focus-visible,.menu-btn:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(183,238,84,.55);outline-offset:3px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:var(--lime-deep);box-shadow:0 8px 20px rgba(183,238,84,.25)}
    .btn-outline{border-color:#9da9a1;background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    .btn-dark{background:var(--ink);color:#fff;border-color:var(--ink)}
    .btn-dark:hover{background:var(--ink-2);box-shadow:0 8px 20px rgba(23,33,29,.16)}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px}
    .menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0}
    .mobile-menu{display:none}
    section{padding:84px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#526058;font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime-deep)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .section-head h2{margin:8px 0 0;font-size:34px;letter-spacing:-.04em;line-height:1.2}
    .section-head p{max-width:490px;margin:0;color:var(--muted);font-size:15px}
    .page-hero{padding:62px 0 58px;background:#e9eee7;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
    .page-hero:before{content:"";position:absolute;width:530px;height:530px;right:-120px;top:-265px;border:1px solid #b9c7b6;border-radius:50%;box-shadow:0 0 0 38px rgba(183,238,84,.12),0 0 0 76px rgba(255,255,255,.35)}
    .page-hero:after{content:"";position:absolute;inset:0;opacity:.38;background-image:radial-gradient(#a6b5a4 1px,transparent 1px);background-size:20px 20px;mask-image:linear-gradient(90deg,transparent 10%,#000 70%,transparent)}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumbs span{color:#98a49b}
    h1{font-size:52px;line-height:1.12;letter-spacing:-.055em;margin:8px 0 16px}
    .hero-inner>p{max-width:675px;margin:0;color:#526058;font-size:17px}
    .hero-meta{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:25px;color:#5c6962;font-size:13px}
    .hero-meta b{padding:5px 10px;border-radius:20px;background:var(--lime);color:var(--ink);font-size:12px}
    .check-section{padding:34px 0;background:#fff;border-bottom:1px solid var(--line)}
    .check-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:15px;overflow:hidden}
    .check-item{display:flex;gap:13px;align-items:center;padding:18px 22px;border-right:1px solid var(--line)}
    .check-item:last-child{border-right:0}
    .check-icon{width:37px;height:37px;display:grid;place-items:center;flex:0 0 auto;background:#edf3e9;border-radius:11px;color:var(--ink)}
    .check-item strong{display:block;font-size:14px}
    .check-item span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .download-grid{display:grid;grid-template-columns:1fr .88fr;gap:20px;align-items:stretch}
    .download-card{padding:34px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden;min-height:405px}
    .download-card.android{background:var(--ink);color:#fff;border-color:var(--ink)}
    .download-card.android:after{content:"";position:absolute;width:250px;height:250px;right:-120px;bottom:-130px;border:1px solid rgba(183,238,84,.35);border-radius:50%;box-shadow:0 0 0 26px rgba(183,238,84,.06),0 0 0 52px rgba(183,238,84,.05)}
    .system-label{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border-radius:20px;background:#eaf1e6;color:#41513f;font-size:12px;font-weight:800}
    .android .system-label{background:rgba(183,238,84,.15);color:var(--lime)}
    .download-card h2{margin:18px 0 8px;font-size:28px;letter-spacing:-.035em}
    .download-card p{max-width:430px;margin:0;color:var(--muted);font-size:15px}
    .android p{color:#c8d3ca}
    .download-info{display:flex;gap:20px;align-items:end;margin-top:28px;position:relative;z-index:1}
    .qr-box{width:120px;height:120px;padding:9px;background:#fff;border-radius:12px;box-shadow:0 8px 18px rgba(0,0,0,.13);flex:0 0 auto}
    .qr-code{height:100%;width:100%;background-color:#fff;background-image:linear-gradient(90deg,#17211d 12%,transparent 12%,transparent 25%,#17211d 25%,#17211d 38%,transparent 38%,transparent 50%,#17211d 50%,#17211d 63%,transparent 63%,transparent 75%,#17211d 75%,#17211d 88%,transparent 88%),linear-gradient(#17211d 12%,transparent 12%,transparent 25%,#17211d 25%,#17211d 38%,transparent 38%,transparent 50%,#17211d 50%,#17211d 63%,transparent 63%,transparent 75%,#17211d 75%,#17211d 88%,transparent 88%);background-size:18px 18px;position:relative}
    .qr-code:before,.qr-code:after{content:"";position:absolute;width:30px;height:30px;background:#fff;border:7px solid var(--ink)}
    .qr-code:before{left:0;top:0}.qr-code:after{right:0;bottom:0}
    .version-data{display:grid;gap:8px;font-size:13px}
    .version-data div{display:flex;justify-content:space-between;gap:24px;border-bottom:1px solid rgba(214,221,212,.18);padding-bottom:7px}
    .version-data span{color:#b8c4ba}.ios .version-data span{color:var(--muted)}
    .version-data b{font-variant-numeric:tabular-nums}
    .download-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;position:relative;z-index:1}
    .ios .btn-outline{background:#fff}
    .install-flow{background:#edf1eb}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
    .step{position:relative;padding:24px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);min-height:196px;transition:var(--ease)}
    .step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b8c6b5}
    .step-no{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:var(--ink);color:var(--lime);font-size:13px;font-weight:800;margin-bottom:22px}
    .step h3{font-size:18px;margin:0 0 8px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .updates-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:start}
    .update-intro{padding:28px;background:var(--ink);color:#fff;border-radius:var(--radius-lg)}
    .update-intro h2{font-size:31px;line-height:1.25;margin:10px 0 14px}
    .update-intro p{color:#c8d3ca;margin:0 0 22px;font-size:15px}
    .timeline{border-left:1px solid #bfcabf;margin:8px 0 0 12px;padding-left:32px}
    .timeline-item{position:relative;padding:0 0 29px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--lime);left:-38px;top:6px;border:3px solid var(--sand)}
    .timeline-item time{display:block;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}
    .timeline-item h3{font-size:18px;margin:5px 0}
    .timeline-item p{color:var(--muted);font-size:14px;margin:0}
    .timeline-item a{display:inline-flex;align-items:center;gap:5px;color:#40564a;font-weight:800;font-size:13px;margin-top:7px}
    .timeline-item a:hover{color:var(--ink)}
    .safety-band{padding:0}
    .safety-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);display:grid;grid-template-columns:.9fr 1.1fr;overflow:hidden;box-shadow:var(--shadow)}
    .safety-copy{padding:39px;background:#fff7ef}
    .safety-copy .eyebrow:before{background:var(--orange)}
    .safety-copy h2{font-size:30px;line-height:1.25;margin:10px 0 12px}
    .safety-copy p{color:var(--muted);margin:0}
    .safety-list{padding:29px 35px;display:grid;gap:0}
    .safety-list div{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}
    .safety-list div:last-child{border-bottom:0}
    .safety-list svg{width:21px;height:21px;flex:0 0 auto;color:var(--orange);margin-top:3px}
    .safety-list b{display:block;font-size:15px}.safety-list span{display:block;font-size:13px;color:var(--muted);margin-top:2px}
    .faq-area{background:#edf1eb}
    .faq-wrap{max-width:880px;margin:auto}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
    .faq-question{border:0;background:#fff;color:var(--text);width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 21px;text-align:left;font-weight:800;font-size:16px}
    .faq-question span:last-child{font-size:22px;font-weight:400;color:#64716a;transition:transform var(--ease)}
    .faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows 220ms ease}
    .faq-answer>div{overflow:hidden}
    .faq-answer p{margin:0;padding:0 21px 19px;color:var(--muted);font-size:15px}
    .faq-item.open .faq-answer{grid-template-rows:1fr}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .support-panel{padding:42px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;border-radius:var(--radius-lg);background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .support-panel:after{content:"";position:absolute;width:280px;height:280px;right:-95px;top:-150px;border:1px solid rgba(183,238,84,.32);border-radius:50%;box-shadow:0 0 0 34px rgba(183,238,84,.06)}
    .support-panel>div{position:relative;z-index:1}
    .support-panel h2{font-size:31px;margin:6px 0 10px;letter-spacing:-.04em}
    .support-panel p{margin:0;color:#c5d0c7;max-width:625px;font-size:15px}
    footer{margin-top:84px;padding:58px 0 22px;background:var(--ink);color:#d8e0d9}
    .footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:30px;padding-bottom:43px}
    .footer-brand .brand{min-width:0}.footer-brand .brand-note{color:#aab7ae}
    .footer-brand p{max-width:310px;color:#aebbb1;font-size:13px;margin:16px 0 0}
    .footer-title{color:#fff;font-weight:800;font-size:14px;margin-bottom:14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{font-size:13px;color:#afbbb1;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:15px;padding-top:20px;border-top:1px solid rgba(221,227,217,.16);font-size:12px;color:#96a69a}
    .footer-bottom a:hover{color:var(--lime)}
    @media (max-width:1024px){
      .nav-links{gap:0}.nav-links>a,.more-toggle{padding:9px 7px;font-size:13px}.brand{min-width:215px}
      .download-grid,.updates-wrap{gap:22px}.steps{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .topbar-right{display:none}.navbar{height:66px}.brand{min-width:0}.brand-note{display:none}
      .nav-links{display:none}.nav-action .btn{min-height:40px;padding:0 12px;font-size:13px}.menu-btn{display:block}
      .mobile-menu{position:fixed;inset:0;z-index:80;background:var(--sand);padding:22px 16px;overflow:auto}
      .mobile-menu.open{display:block}.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}
      .close-menu{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:24px;line-height:1}
      .mobile-links{display:grid;gap:8px}.mobile-links a{padding:15px 16px;background:#fff;border:1px solid var(--line);border-radius:12px;font-weight:700}
      .mobile-links .btn{margin-top:10px}
      .page-hero{padding:47px 0}.page-hero:before{right:-300px}.breadcrumbs{margin-bottom:16px}
      h1{font-size:37px}.hero-inner>p{font-size:16px}
      section{padding:62px 0}.section-head{align-items:flex-start;display:block;margin-bottom:25px}.section-head h2{font-size:28px}.section-head p{margin-top:12px}
      .check-bar{grid-template-columns:1fr}.check-item{border-right:0;border-bottom:1px solid var(--line)}.check-item:last-child{border-bottom:0}
      .download-grid,.updates-wrap,.safety-panel{grid-template-columns:1fr}.download-card{min-height:auto;padding:27px}.download-card h2{font-size:25px}
      .safety-copy,.safety-list{padding:28px}.support-panel{padding:31px;display:block}.support-panel .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.footer-brand{grid-column:1/-1}.footer-bottom{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:520px){
      body{font-size:15px}.nav-action .btn{font-size:0;width:44px;padding:0}.nav-action .btn:after{content:"↓";font-size:19px}.navbar{gap:8px}
      h1{font-size:32px}.page-hero{padding:39px 0}.hero-meta{gap:8px}.steps{grid-template-columns:1fr}.step{min-height:auto}
      .download-info{align-items:flex-start;flex-direction:column}.download-actions{display:grid}.download-actions .btn{width:100%}
      .support-panel h2{font-size:27px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }
    @media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* roulang page: category4 */
:root{
      --ink:#17211D;--ink-2:#25342D;--lime:#B7EE54;--lime-deep:#9ed63e;--sand:#F6F5F0;
      --mist:#DDE3D9;--white:#fff;--text:#1E2924;--muted:#64716A;--line:#D6DDD4;
      --orange:#E8843D;--green:#4C9B6C;--radius:16px;--radius-lg:22px;
      --shadow:0 16px 42px rgba(23,33,29,.08);--shadow-hover:0 22px 48px rgba(23,33,29,.14);
      --container:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--sand);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    :focus-visible{outline:3px solid rgba(183,238,84,.8);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .topbar{height:32px;background:var(--ink);color:#dce6dd;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-left{display:flex;align-items:center;gap:9px}
    .top-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(183,238,84,.12)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.96);border-bottom:1px solid transparent;transition:var(--ease);backdrop-filter:blur(12px)}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 22px rgba(23,33,29,.06)}
    .navbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--ink);display:grid;place-items:center;position:relative;overflow:hidden;flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:18px;height:18px}
    .brand-mark:after{width:8px;height:8px;background:var(--lime)}
    .brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.25}
    .brand-note{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links>a,.more-toggle{border:0;background:none;padding:10px 11px;border-radius:9px;color:#445049;font-size:14px;white-space:nowrap;transition:var(--ease)}
    .nav-links>a:hover,.nav-links>a.active,.more-toggle:hover{color:var(--ink);background:var(--mist)}
    .more-wrap{position:relative}
    .more-panel{display:none;position:absolute;top:45px;right:0;width:250px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);grid-template-columns:1fr 1fr;gap:3px;z-index:70}
    .more-wrap.open .more-panel{display:grid}
    .more-panel a{font-size:13px;padding:8px;border-radius:7px;color:#4d5a53}
    .more-panel a:hover{background:var(--sand);color:var(--ink)}
    .nav-action{display:flex;gap:10px;align-items:center}
    .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:var(--lime-deep);box-shadow:0 8px 20px rgba(183,238,84,.25)}
    .btn-outline{border-color:#9da9a1;background:#fff;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:var(--mist)}
    .btn-alert{border-color:var(--orange);color:#9c511e;background:#fffaf5}
    .btn-alert:hover{background:#fff0e5;box-shadow:0 8px 20px rgba(232,132,61,.12)}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px}
    .menu-btn span{display:block;height:2px;background:var(--ink);margin:5px 0}
    .mobile-menu{display:none}
    section{padding:84px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#526058;font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime-deep)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head h2{margin:8px 0 0;font-size:34px;letter-spacing:-.04em;line-height:1.2}
    .section-head p{max-width:480px;margin:0;color:var(--muted);font-size:15px}
    .page-head{position:relative;overflow:hidden;padding:56px 0 66px;background:var(--mist);border-bottom:1px solid var(--line)}
    .page-head:before{content:"";position:absolute;width:360px;height:360px;right:8%;top:-120px;border:1px solid rgba(76,155,108,.22);border-radius:50%}
    .page-head:after{content:"";position:absolute;right:14%;top:44px;width:170px;height:170px;border:20px solid rgba(183,238,84,.23);border-radius:42px;transform:rotate(16deg)}
    .breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:13px;margin-bottom:23px}
    .breadcrumb span{color:#98a39c}
    .page-head-inner{position:relative;z-index:1;max-width:810px}
    .page-head h1{margin:10px 0 14px;font-size:48px;line-height:1.14;letter-spacing:-.055em}
    .page-head p{max-width:690px;margin:0;color:#536159;font-size:16px}
    .updated{display:inline-flex;align-items:center;gap:8px;margin-top:23px;padding:7px 11px;border:1px solid rgba(76,155,108,.3);border-radius:999px;background:rgba(255,255,255,.58);font-size:13px;color:#4a5c50}
    .updated i{width:7px;height:7px;border-radius:50%;background:var(--green)}
    .security-status{padding:30px 0;background:#fff;border-bottom:1px solid var(--line)}
    .status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .status-item{display:flex;gap:13px;align-items:center;padding:19px 22px;background:#fff}
    .status-item+.status-item{border-left:1px solid var(--line)}
    .status-icon{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;background:#edf4e6;color:#3f6f49;flex:0 0 auto}
    .status-item strong{display:block;font-size:15px}
    .status-item span{display:block;color:var(--muted);font-size:13px;margin-top:1px}
    .security-index{background:#f0f3ee}
    .filter-row{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:26px}
    .filter-tabs{display:flex;flex-wrap:wrap;gap:9px}
    .filter-tab{padding:8px 13px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#526058;font-size:13px;font-weight:700;transition:var(--ease)}
    .filter-tab:hover,.filter-tab.active{background:var(--ink);border-color:var(--ink);color:#fff}
    .content-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .guide-card{display:flex;flex-direction:column;min-height:244px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 24px rgba(23,33,29,.035);transition:var(--ease)}
    .guide-card:hover{transform:translateY(-4px);border-color:#aab9ab;box-shadow:var(--shadow)}
    .guide-card.featured{grid-row:span 2;background:var(--ink);color:#fff;justify-content:flex-end;position:relative;overflow:hidden}
    .guide-card.featured:before{content:"";position:absolute;width:210px;height:210px;right:-55px;top:-55px;border:28px solid rgba(183,238,84,.2);border-radius:50%}
    .guide-card.featured .card-copy,.guide-card.featured .card-top{position:relative;z-index:1}
    .guide-card.featured p{color:#c7d1c8}
    .card-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:auto}
    .tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;background:#edf2eb;color:#496153;font-size:12px;font-weight:800}
    .tag.safe{background:#e5f2e8;color:#327048}
    .tag.notice{background:#fdf0e3;color:#a65c28}
    .tag.info{background:#eaf0ea;color:#506154}
    .card-date{font-size:12px;color:#8b968f;white-space:nowrap}
    .guide-card h3{margin:25px 0 10px;font-size:21px;letter-spacing:-.025em;line-height:1.35}
    .guide-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .card-link{display:inline-flex;align-items:center;gap:8px;margin-top:20px;font-size:14px;font-weight:800;color:#365949}
    .featured .card-link{color:var(--lime)}
    .card-link svg{transition:transform var(--ease)}
    .card-link:hover svg{transform:translateX(4px)}
    .path-section{background:var(--sand)}
    .path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
    .path-grid:before{content:"";position:absolute;top:39px;left:12%;right:12%;height:1px;background:linear-gradient(90deg,var(--lime-deep),var(--line))}
    .path-step{position:relative;padding:0 10px}
    .step-num{position:relative;z-index:1;width:78px;height:78px;display:grid;place-items:center;margin-bottom:19px;border:1px solid #c6d2c6;border-radius:50%;background:#fff;color:var(--ink);font-size:24px;font-weight:800;box-shadow:0 8px 20px rgba(23,33,29,.05)}
    .path-step:nth-child(2) .step-num{background:#eaf5d4}
    .path-step:nth-child(3) .step-num{background:#eef2ed}
    .path-step:nth-child(4) .step-num{background:#fff0e5;color:#a15a28}
    .path-step h3{margin:0 0 8px;font-size:18px}
    .path-step p{margin:0;color:var(--muted);font-size:14px}
    .risk-section{background:#fff}
    .risk-board{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
    .risk-column{padding:35px 38px}
    .risk-column.good{background:#eff5ec}
    .risk-column.avoid{background:#fffaf5;border-left:1px solid var(--line)}
    .risk-head{display:flex;align-items:center;gap:11px;margin-bottom:23px}
    .risk-symbol{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-size:19px;font-weight:800}
    .good .risk-symbol{background:#d8edcf;color:#377346}
    .avoid .risk-symbol{background:#fce4d0;color:#ad602b}
    .risk-head h3{margin:0;font-size:21px}
    .risk-list{list-style:none;padding:0;margin:0}
    .risk-list li{position:relative;padding:13px 0 13px 28px;border-top:1px solid rgba(100,113,106,.16);font-size:15px}
    .risk-list li:before{position:absolute;left:2px;top:14px;font-weight:900}
    .good .risk-list li:before{content:"✓";color:var(--green)}
    .avoid .risk-list li:before{content:"×";color:var(--orange)}
    .faq-section{background:#f0f3ee}
    .faq-wrap{max-width:890px;margin:auto}
    .faq-item{border:1px solid var(--line);border-radius:13px;background:#fff;overflow:hidden;margin-bottom:11px;transition:border-color var(--ease)}
    .faq-item.open{border-color:#aebbad}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 20px;border:0;background:#fff;text-align:left;color:var(--text);font-size:16px;font-weight:800}
    .faq-question b{font-size:22px;line-height:1;color:#5d6b63;font-weight:400;transition:transform 220ms ease}
    .faq-item.open .faq-question b{transform:rotate(45deg);color:#427451}
    .faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows 220ms ease}
    .faq-answer>div{overflow:hidden}
    .faq-answer p{margin:0;padding:0 20px 20px;color:var(--muted);font-size:15px}
    .faq-item.open .faq-answer{grid-template-rows:1fr}
    .assist-section{padding:76px 0;background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .assist-section:after{content:"";position:absolute;width:380px;height:380px;right:-100px;bottom:-220px;border:1px solid rgba(183,238,84,.3);border-radius:50%}
    .assist-box{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:35px}
    .assist-box .eyebrow{color:#c7d4ca}
    .assist-box .eyebrow:before{background:var(--lime)}
    .assist-box h2{max-width:640px;margin:10px 0 10px;font-size:35px;line-height:1.2;letter-spacing:-.04em}
    .assist-box p{margin:0;color:#cbd4cd;max-width:650px;font-size:15px}
    .assist-actions{display:flex;gap:11px;flex-wrap:wrap;flex:0 0 auto}
    footer{padding:64px 0 24px;background:#101813;color:#c7d1c8}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:48px}
    .footer-brand p{max-width:310px;margin:18px 0 0;color:#9eaba1;font-size:13px}
    .footer-title{margin:4px 0 16px;color:#fff;font-size:14px;font-weight:800}
    .footer-links{display:grid;gap:9px}
    .footer-links a{width:max-content;max-width:100%;color:#aeb9b0;font-size:13px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(2px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(221,227,217,.15);color:#829087;font-size:12px}
    .footer-bottom a:hover{color:var(--lime)}
    @media (max-width:1024px){
      .brand{min-width:210px}.nav-links>a,.more-toggle{padding:9px 7px;font-size:13px}
      .content-grid{grid-template-columns:1fr 1fr}.guide-card.featured{grid-row:span 1}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .topbar .container>span:last-child{display:none}
      .navbar{height:66px}.brand{min-width:0}.brand-note{display:none}
      .nav-links{display:none}.nav-action .btn{display:none}.menu-btn{display:block}
      .mobile-menu{position:fixed;inset:0;z-index:100;background:var(--sand);padding:25px 20px;transform:translateX(100%);transition:transform 240ms ease;display:block}
      .mobile-menu.open{transform:translateX(0)}
      .mobile-menu-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}
      .mobile-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:23px}
      .mobile-links{display:grid;gap:7px}
      .mobile-links a{padding:15px 14px;border-bottom:1px solid var(--line);font-weight:800}
      .mobile-links .btn{margin-top:16px}
      section{padding:64px 0}.page-head{padding:45px 0 52px}.page-head h1{font-size:38px}
      .section-head{display:block;margin-bottom:25px}.section-head p{margin-top:13px}
      .section-head h2{font-size:29px}.status-grid{grid-template-columns:1fr}.status-item+.status-item{border-left:0;border-top:1px solid var(--line)}
      .content-grid{grid-template-columns:1fr}.guide-card{min-height:0}
      .path-grid{grid-template-columns:1fr 1fr;gap:30px}.path-grid:before{display:none}
      .risk-board{grid-template-columns:1fr}.risk-column{padding:28px 24px}.risk-column.avoid{border-left:0;border-top:1px solid var(--line)}
      .assist-box{align-items:flex-start;flex-direction:column}.assist-box h2{font-size:30px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block}.footer-bottom span+span{margin-top:10px}
    }
    @media (max-width:520px){
      body{font-size:15px}.page-head h1{font-size:33px}.page-head p{font-size:15px}
      .filter-row{align-items:flex-start;flex-direction:column}.filter-tabs{gap:7px}.filter-tab{padding:7px 10px}
      .guide-card{padding:21px}.guide-card h3{margin-top:21px;font-size:19px}
      .path-grid{grid-template-columns:1fr}.path-step{padding:0}.step-num{margin-bottom:13px}
      .faq-question{padding:17px 16px;font-size:15px}.faq-answer p{padding:0 16px 17px}
      .assist-actions{width:100%}.assist-actions .btn{flex:1;padding:0 12px}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-brand{grid-column:auto}
    }
    @media (prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
    }