/* roulang page: index */
:root{
  --ink:#1d211f;
  --ink-soft:#444b46;
  --muted:#737a74;
  --paper:#fbfaf7;
  --sand:#f2efe8;
  --line:#e5e0d6;
  --orange:#ef5a36;
  --orange-dark:#cf3e20;
  --orange-pale:#fff0ea;
  --mint:#1d9f88;
  --mint-pale:#e6f6f1;
  --plum:#775b94;
  --plum-pale:#f0eafa;
  --charcoal:#202421;
  --charcoal-2:#2c322e;
  --white:#fff;
  --shadow:0 14px 38px rgba(31,37,33,.08);
  --shadow-hover:0 20px 44px rgba(31,37,33,.14);
  --radius:18px;
  --radius-sm:11px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
::selection{background:rgba(239,90,54,.18);color:var(--ink)}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(229,224,214,.9);background:rgba(251,250,247,.94);backdrop-filter:blur(12px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-weight:900;font-size:23px;line-height:1;box-shadow:0 8px 18px rgba(239,90,54,.22)}
.brand-mark:after{content:"";position:absolute;width:9px;height:9px;right:-3px;top:-3px;border-radius:50%;background:var(--mint);border:2px solid var(--paper)}
.brand-copy{display:flex;flex-direction:column;line-height:1.16}
.brand-copy strong{font-size:16px;letter-spacing:.01em;white-space:nowrap}
.brand-copy small{color:var(--muted);font-size:10px;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.nav-links{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}
.nav-links a{position:relative;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:700;transition:.2s ease}
.nav-links a:hover{background:var(--orange-pale);color:var(--orange-dark)}
.nav-links a.active{color:var(--ink)}
.nav-links a.active:after{content:"";position:absolute;right:12px;bottom:2px;left:12px;height:3px;border-radius:4px;background:var(--orange)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:800;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible,.category-card:focus-visible,.news-card:focus-visible{outline:3px solid rgba(29,159,136,.42);outline-offset:3px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 9px 19px rgba(239,90,54,.2)}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 12px 22px rgba(207,62,32,.27)}
.btn-ghost{background:transparent;border-color:#d6d0c5;color:var(--ink)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);background:var(--orange-pale)}
.nav-cta{white-space:nowrap;min-height:40px;padding:0 15px;font-size:14px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
.hero{position:relative;overflow:hidden;padding:64px 0 72px;background:linear-gradient(116deg,#f4efe5 0%,#fbfaf7 53%,#ebf7f3 100%)}
.hero:before{content:"";position:absolute;width:480px;height:480px;right:-190px;top:-245px;border:58px solid rgba(239,90,54,.1);border-radius:50%}
.hero:after{content:"";position:absolute;width:220px;height:220px;left:-92px;bottom:-152px;border:34px solid rgba(29,159,136,.1);border-radius:50%}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:52px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:26px;height:2px;background:currentColor}
.hero h1{max-width:710px;margin:0;font-size:clamp(40px,5vw,62px);line-height:1.16;letter-spacing:-.045em}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero p{max-width:610px;margin:23px 0 0;color:var(--ink-soft);font-size:17px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:30px;padding-top:20px;border-top:1px solid rgba(71,75,69,.14);color:var(--muted);font-size:13px;font-weight:700}
.hero-meta span{display:flex;align-items:center;gap:7px}
.hero-meta i{width:8px;height:8px;border-radius:50%;background:var(--mint)}
.hero-visual{position:relative;min-height:412px}
.feature-board{position:absolute;inset:12px 0 0 35px;overflow:hidden;padding:27px;border-radius:26px;background:var(--charcoal);box-shadow:0 25px 54px rgba(26,30,27,.2);color:#fff}
.feature-board:before{content:"";position:absolute;width:252px;height:252px;right:-92px;top:-84px;border:37px solid rgba(239,90,54,.9);border-radius:50%}
.feature-board:after{content:"";position:absolute;left:-68px;bottom:-70px;width:205px;height:205px;border:25px solid rgba(29,159,136,.7);border-radius:50%}
.board-top{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;color:#dfe5de;font-size:12px;font-weight:800;letter-spacing:.06em}
.live-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.11)}
.live-pill b{width:6px;height:6px;border-radius:50%;background:#ff7857}
.board-title{position:relative;z-index:1;max-width:340px;margin:48px 0 0;font-size:33px;line-height:1.25;letter-spacing:-.035em}
.board-title strong{display:block;color:#ff805f}
.board-list{position:absolute;z-index:1;right:27px;bottom:27px;left:27px;display:grid;gap:9px}
.board-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border:1px solid rgba(255,255,255,.13);border-radius:11px;background:rgba(255,255,255,.09);backdrop-filter:blur(8px);font-size:13px}
.board-item span:first-child{color:#e6ece6}
.board-item b{color:#8ce4cc;font-size:12px}
.floating-note{position:absolute;z-index:2;right:-13px;top:28px;width:159px;padding:14px;border-radius:14px;background:#fff;color:var(--ink);box-shadow:var(--shadow);transform:rotate(4deg)}
.floating-note strong{display:block;font-size:25px;line-height:1;color:var(--orange)}
.floating-note span{display:block;margin-top:5px;font-size:11px;font-weight:700;line-height:1.45}
.section{padding:86px 0}
.section-sand{background:var(--sand)}
.section-dark{background:var(--charcoal);color:#fff}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:31px}
.kicker{margin:0 0 9px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.09em}
.section-dark .kicker{color:#ff9b84}
.section-head h2{max-width:680px;margin:0;font-size:clamp(28px,3.3vw,38px);line-height:1.24;letter-spacing:-.035em}
.section-head p{max-width:412px;margin:0;color:var(--muted);font-size:15px}
.section-dark .section-head p{color:#c5ccc5}
.signal-row{display:grid;grid-template-columns:1.1fr .9fr .9fr .9fr;gap:1px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--line)}
.signal{min-height:155px;padding:25px 24px;background:var(--white)}
.signal:first-child{background:var(--orange);color:#fff}
.signal strong{display:block;font-size:35px;line-height:1;font-weight:900;letter-spacing:-.045em}
.signal span{display:block;margin-top:10px;font-size:14px;font-weight:700;line-height:1.5}
.signal:not(:first-child) span{color:var(--muted)}
.topic-grid{display:grid;grid-template-columns:1.05fr .95fr .95fr;gap:18px}
.topic-card{position:relative;min-height:235px;overflow:hidden;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.topic-card:hover{transform:translateY(-5px);border-color:#d9bdb2;box-shadow:var(--shadow-hover)}
.topic-card.wide{grid-row:span 2;min-height:488px;background:var(--charcoal);color:#fff}
.topic-card.mint{background:var(--mint-pale);border-color:#caebe1}
.topic-card.plum{background:var(--plum-pale);border-color:#e2d7f1}
.topic-card h3{position:relative;z-index:1;margin:15px 0 8px;font-size:23px;line-height:1.3}
.topic-card p{position:relative;z-index:1;margin:0;max-width:300px;color:var(--ink-soft);font-size:14px;line-height:1.75}
.topic-card.wide p{color:#d5ded5}
.topic-index{position:relative;z-index:1;color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.1em}
.topic-card.wide .topic-index{color:#8ce4cc}
.topic-art{position:absolute;right:22px;bottom:20px;width:124px;height:124px;border:17px solid rgba(239,90,54,.16);border-radius:50%}
.topic-card.wide .topic-art{right:-14px;bottom:-10px;width:260px;height:260px;border-width:42px;border-color:rgba(239,90,54,.76)}
.topic-card.mint .topic-art{border-color:rgba(29,159,136,.24)}
.topic-card.plum .topic-art{border-color:rgba(119,91,148,.21)}
.category-section{padding:84px 0;background:var(--paper)}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.category-card{display:block;min-height:194px;padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--white);transition:.22s ease}
.category-card:hover{border-color:var(--orange);transform:translateY(-4px);box-shadow:var(--shadow)}
.category-card .num{display:flex;align-items:center;justify-content:space-between;color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.1em}
.category-card .arrow{font-size:21px;line-height:1;transition:transform .2s ease}
.category-card:hover .arrow{transform:translate(3px,-3px)}
.category-card h3{margin:42px 0 6px;font-size:20px;line-height:1.3}
.category-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.editorial{display:grid;grid-template-columns:.88fr 1.12fr;gap:44px;align-items:center}
.editorial-art{position:relative;min-height:410px;border-radius:var(--radius);background:#dcefe8;overflow:hidden}
.editorial-art:before{content:"";position:absolute;left:12%;top:10%;width:61%;height:75%;border-radius:20px;background:var(--charcoal);transform:rotate(-7deg)}
.editorial-art:after{content:"";position:absolute;right:9%;bottom:10%;width:42%;height:48%;border:18px solid var(--orange);border-radius:50%;opacity:.9}
.editorial-card{position:absolute;z-index:2;left:14%;top:24%;width:57%;padding:20px;border-radius:15px;background:#fff;box-shadow:0 18px 38px rgba(35,43,39,.17)}
.editorial-card small{color:var(--mint);font-weight:900;letter-spacing:.08em}
.editorial-card strong{display:block;margin-top:8px;font-size:22px;line-height:1.35}
.editorial-copy h2{margin:0;font-size:clamp(28px,3vw,37px);line-height:1.27;letter-spacing:-.035em}
.editorial-copy p{margin:18px 0;color:var(--ink-soft)}
.check-list{display:grid;gap:12px;margin:27px 0 30px;padding:0;list-style:none}
.check-list li{display:flex;align-items:flex-start;gap:11px;color:var(--ink-soft);font-size:15px}
.check-list li:before{content:"✓";display:grid;place-items:center;flex:0 0 22px;width:22px;height:22px;margin-top:3px;border-radius:50%;background:var(--mint-pale);color:var(--mint);font-size:13px;font-weight:900}
.news-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:42px}
.news-intro{padding:32px;border-radius:var(--radius);background:var(--orange);color:#fff}
.news-intro .kicker{color:#ffe3da}
.news-intro h2{margin:0;font-size:34px;line-height:1.25;letter-spacing:-.035em}
.news-intro p{margin:18px 0 27px;color:#fff2ee}
.news-intro .btn-ghost{border-color:rgba(255,255,255,.63);color:#fff}
.news-intro .btn-ghost:hover{background:#fff;color:var(--orange-dark);border-color:#fff}
.news-list{display:grid;gap:1px;border-top:1px solid var(--line)}
.news-card{display:grid;grid-template-columns:100px 1fr auto;align-items:center;gap:20px;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s ease}
.news-card:hover{padding-left:9px}
.news-date{color:var(--muted);font-size:13px;font-weight:800}
.news-date b{display:block;color:var(--orange);font-size:24px;line-height:1.12}
.news-card h3{margin:0;font-size:18px;line-height:1.42}
.news-card p{margin:5px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
.news-arrow{color:var(--orange);font-size:25px}
.empty-list{padding:30px 0;color:var(--muted);font-size:15px}
.activity-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.activity-main{position:relative;min-height:337px;overflow:hidden;padding:38px;border-radius:var(--radius);background:var(--charcoal);color:#fff}
.activity-main:before{content:"";position:absolute;width:300px;height:300px;right:-70px;bottom:-150px;border:48px solid var(--mint);border-radius:50%;opacity:.8}
.activity-main h2{position:relative;z-index:1;max-width:500px;margin:8px 0 13px;font-size:36px;line-height:1.22;letter-spacing:-.04em}
.activity-main p{position:relative;z-index:1;max-width:485px;margin:0;color:#ced7cf}
.activity-main .btn{position:relative;z-index:1;margin-top:28px}
.activity-side{display:grid;gap:18px}
.mini-activity{min-height:159px;padding:23px;border-radius:var(--radius);background:#f6dfd7}
.mini-activity:nth-child(2){background:#dff1eb}
.mini-activity small{font-size:12px;font-weight:900;color:var(--orange-dark);letter-spacing:.08em}
.mini-activity:nth-child(2) small{color:var(--mint)}
.mini-activity h3{margin:8px 0 0;font-size:21px;line-height:1.35}
.download-section{padding:84px 0;background:var(--sand)}
.download-box{position:relative;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:48px 54px;border-radius:24px;background:linear-gradient(118deg,#272d29,#1e231f);color:#fff}
.download-box:before{content:"";position:absolute;width:460px;height:460px;right:-150px;top:-275px;border:61px solid rgba(239,90,54,.76);border-radius:50%}
.download-copy{position:relative;z-index:1}
.download-copy h2{max-width:570px;margin:0;font-size:clamp(30px,3.7vw,43px);line-height:1.2;letter-spacing:-.04em}
.download-copy p{max-width:565px;margin:17px 0 0;color:#cdd6ce}
.download-steps{display:flex;gap:16px;margin-top:28px}
.download-step{display:flex;align-items:center;gap:8px;color:#eef3ee;font-size:13px;font-weight:700}
.download-step b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--orange);font-size:12px}
.download-panel{position:relative;z-index:1;padding:22px;border:1px solid rgba(255,255,255,.16);border-radius:16px;background:rgba(255,255,255,.08)}
.download-panel strong{display:block;font-size:19px}
.download-panel p{margin:5px 0 17px;color:#cbd4cc;font-size:14px;line-height:1.6}
.download-panel .btn{width:100%}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.trust-card{padding:27px 25px;border:1px solid rgba(255,255,255,.13);border-radius:var(--radius);background:var(--charcoal-2)}
.trust-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:rgba(239,90,54,.15);color:#ff987e;font-size:21px;font-weight:900}
.trust-card h3{margin:18px 0 7px;font-size:20px}
.trust-card p{margin:0;color:#bdc6be;font-size:14px;line-height:1.75}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.guide-card{padding:28px;border-top:4px solid var(--orange);border-radius:0 0 var(--radius) var(--radius);background:var(--white);box-shadow:0 1px 0 var(--line)}
.guide-card:nth-child(2){border-top-color:var(--mint)}
.guide-card:nth-child(3){border-top-color:var(--plum)}
.guide-card .guide-no{color:var(--muted);font-size:12px;font-weight:900;letter-spacing:.1em}
.guide-card h3{margin:32px 0 9px;font-size:22px}
.guide-card p{margin:0;color:var(--ink-soft);font-size:14px}
.quote-band{padding:0 0 88px;background:var(--paper)}
.quote-box{display:grid;grid-template-columns:auto 1fr;gap:25px;align-items:start;padding:38px 44px;border-left:6px solid var(--mint);border-radius:0 var(--radius) var(--radius) 0;background:var(--mint-pale)}
.quote-mark{color:var(--mint);font-family:Georgia,serif;font-size:68px;line-height:.8}
.quote-box blockquote{margin:0;font-size:24px;line-height:1.55;font-weight:800;letter-spacing:-.02em}
.quote-box cite{display:block;margin-top:12px;color:#52726a;font-size:14px;font-style:normal;font-weight:700}
.faq-wrap{display:grid;grid-template-columns:.76fr 1.24fr;gap:50px;align-items:start}
.faq-copy h2{margin:0;font-size:36px;line-height:1.27;letter-spacing:-.04em}
.faq-copy p{margin:18px 0 0;color:var(--ink-soft)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:20px 0;list-style:none;font-size:17px;font-weight:800;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";color:var(--orange);font-size:27px;font-weight:400;line-height:1}
.faq-item[open] summary:after{content:"−"}
.faq-item p{margin:0 0 20px;color:var(--ink-soft);font-size:15px}
.final-cta{padding:0 0 88px;background:var(--paper)}
.final-card{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:42px 48px;border-radius:var(--radius);background:var(--orange);color:#fff}
.final-card:after{content:"";position:absolute;right:-34px;bottom:-105px;width:230px;height:230px;border:31px solid rgba(255,255,255,.15);border-radius:50%}
.final-card h2{position:relative;z-index:1;max-width:670px;margin:0;font-size:34px;line-height:1.25;letter-spacing:-.04em}
.final-card p{position:relative;z-index:1;margin:9px 0 0;color:#fff1ed}
.final-card .btn{position:relative;z-index:1;flex:0 0 auto;background:#fff;color:var(--orange-dark)}
.final-card .btn:hover{box-shadow:0 10px 22px rgba(86,24,10,.2)}
.site-footer{background:var(--charcoal);color:#eef2ee}
.footer-main{display:grid;grid-template-columns:1.4fr .7fr .7fr 1fr;gap:35px;padding:57px 0 37px}
.footer-brand p{max-width:340px;margin:17px 0 0;color:#afb9b0;font-size:14px;line-height:1.8}
.footer-logo .brand-copy strong{color:#fff}
.footer-logo .brand-copy small{color:#aeb7af}
.footer-title{margin:2px 0 15px;color:#fff;font-size:14px;letter-spacing:.04em}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#afb9b0;font-size:14px;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-download{padding:19px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.05)}
.footer-download strong{font-size:16px}
.footer-download p{margin:8px 0 14px;color:#afb9b0;font-size:13px;line-height:1.65}
.footer-download .btn{min-height:39px;padding:0 13px;font-size:13px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0 25px;border-top:1px solid rgba(255,255,255,.1);color:#909b91;font-size:12px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{padding:3px 8px;border:1px solid rgba(255,255,255,.13);border-radius:6px}
@media (max-width:1024px){
  .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}
  .hero-grid,.editorial,.news-layout,.download-box,.faq-wrap{gap:30px}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1.25fr 1fr 1fr}
  .footer-download{grid-column:span 3}
}
@media (max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .nav-wrap{height:67px;gap:9px}
  .brand-mark{width:34px;height:34px;font-size:20px}
  .brand-copy strong{font-size:14px}.brand-copy small{font-size:8px}
  .nav-links{display:none;position:absolute;top:67px;right:16px;left:16px;flex-direction:column;align-items:stretch;padding:10px;border:1px solid var(--line);border-radius:13px;background:var(--paper);box-shadow:var(--shadow)}
  .nav-links.open{display:flex}.nav-links a{padding:11px 12px}.nav-links a.active:after{right:auto;bottom:7px;left:12px;width:26px}
  .menu-toggle{display:grid;place-items:center;order:3}.nav-cta{order:2;margin-left:auto;min-height:37px;padding:0 11px;font-size:12px}
  .hero{padding:48px 0 54px}.hero-grid,.editorial,.news-layout,.download-box,.faq-wrap{grid-template-columns:1fr}
  .hero-visual{min-height:340px;max-width:560px;width:100%;margin:0 auto}.feature-board{inset:7px 10px 0 10px}.board-title{margin-top:34px;font-size:29px}
  .floating-note{right:0}.section,.category-section,.download-section{padding:60px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
  .signal-row{grid-template-columns:repeat(2,1fr)}.signal:first-child{grid-column:span 2}.signal{min-height:125px}
  .topic-grid{grid-template-columns:1fr 1fr}.topic-card.wide{grid-row:auto;grid-column:span 2;min-height:315px}
  .activity-grid{grid-template-columns:1fr}.activity-main{min-height:285px}
  .trust-grid,.guide-grid{grid-template-columns:1fr}.guide-card{padding:24px}
  .download-box{padding:35px 27px}.footer-main{grid-template-columns:1fr 1fr;gap:29px}.footer-brand{grid-column:span 2}.footer-download{grid-column:span 2}
  .final-card{display:block;padding:34px 28px}.final-card .btn{margin-top:22px}
}
@media (max-width:520px){
  body{font-size:15px}.container{width:min(calc(100% - 28px),var(--container))}
  .brand-copy small{display:none}.nav-cta{padding:0 10px}.hero h1{font-size:35px}.hero p{font-size:15px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn{width:100%}
  .hero-meta{gap:10px 15px}.hero-visual{min-height:315px}.feature-board{padding:20px}.board-title{font-size:26px}.board-list{right:18px;bottom:18px;left:18px}.board-item{padding:10px;font-size:12px}.floating-note{width:130px;padding:11px}
  .signal-row{grid-template-columns:1fr}.signal:first-child{grid-column:auto}.signal{min-height:auto;padding:21px}.signal strong{font-size:30px}
  .topic-grid,.category-grid{grid-template-columns:1fr}.topic-card.wide{grid-column:auto;min-height:300px}.topic-card{min-height:210px}.editorial-art{min-height:320px}
  .news-card{grid-template-columns:68px 1fr;gap:12px}.news-arrow{display:none}.news-card h3{font-size:16px}.news-date b{font-size:20px}
  .download-steps{display:grid;gap:9px}.quote-box{gap:14px;padding:29px 24px}.quote-mark{font-size:48px}.quote-box blockquote{font-size:19px}
  .faq-copy h2{font-size:31px}.faq-item summary{font-size:16px}.footer-main{grid-template-columns:1fr}.footer-brand,.footer-download{grid-column:auto}.footer-bottom{align-items:flex-start;flex-direction:column}
}

/* roulang page: article */
:root{
  --ink:#1d211f;
  --ink-soft:#444b46;
  --muted:#737a74;
  --paper:#fbfaf7;
  --sand:#f2efe8;
  --line:#e5e0d6;
  --orange:#ef5a36;
  --orange-dark:#cf3e20;
  --orange-pale:#fff0ea;
  --mint:#1d9f88;
  --mint-pale:#e6f6f1;
  --plum:#775b94;
  --plum-pale:#f0eafa;
  --charcoal:#202421;
  --charcoal-2:#2c322e;
  --white:#fff;
  --shadow:0 14px 38px rgba(31,37,33,.08);
  --shadow-hover:0 20px 44px rgba(31,37,33,.14);
  --radius:18px;
  --radius-sm:11px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(229,224,214,.9);background:rgba(251,250,247,.95);backdrop-filter:blur(12px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-weight:900;font-size:23px;line-height:1;box-shadow:0 8px 18px rgba(239,90,54,.22)}
.brand-mark:after{content:"";position:absolute;width:9px;height:9px;right:-3px;top:-3px;border-radius:50%;background:var(--mint);border:2px solid var(--paper)}
.brand-copy{display:flex;flex-direction:column;line-height:1.16}
.brand-copy strong{font-size:16px;letter-spacing:.01em;white-space:nowrap}
.brand-copy small{color:var(--muted);font-size:10px;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.nav-links{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}
.nav-links a{position:relative;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:700;transition:.2s ease}
.nav-links a:hover{background:var(--orange-pale);color:var(--orange-dark)}
.nav-links a.active{color:var(--ink)}
.nav-links a.active:after{content:"";position:absolute;right:12px;bottom:2px;left:12px;height:3px;border-radius:4px;background:var(--orange)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:800;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible{outline:3px solid rgba(29,159,136,.42);outline-offset:3px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 9px 19px rgba(239,90,54,.2)}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 12px 22px rgba(207,62,32,.27)}
.btn-ghost{background:transparent;border-color:#d6d0c5;color:var(--ink)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);background:var(--orange-pale)}
.nav-cta{white-space:nowrap;min-height:40px;padding:0 15px;font-size:14px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
.article-hero{position:relative;overflow:hidden;padding:74px 0 68px;background:linear-gradient(116deg,#f4efe5 0%,#fbfaf7 58%,#ebf7f3 100%)}
.article-hero:before{content:"";position:absolute;width:410px;height:410px;right:-180px;top:-205px;border:54px solid rgba(239,90,54,.1);border-radius:50%}
.article-hero:after{content:"";position:absolute;width:190px;height:190px;left:-80px;bottom:-130px;border:30px solid rgba(29,159,136,.11);border-radius:50%}
.article-head{position:relative;z-index:1;max-width:900px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 17px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:26px;height:2px;background:currentColor}
.article-head h1{max-width:900px;margin:0;font-size:clamp(34px,5vw,58px);line-height:1.22;letter-spacing:-.045em}
.article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:25px;color:var(--muted);font-size:14px}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-dot{width:8px;height:8px;border-radius:50%;background:var(--mint)}
.content-section{padding:76px 0 92px}
.article-layout{display:grid;grid-template-columns:minmax(0,790px) 300px;gap:58px;align-items:start}
.article-card{min-width:0;padding:42px 46px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.article-content{color:var(--ink-soft);font-size:17px;line-height:1.95;overflow-wrap:anywhere}
.article-content h2,.article-content h3{color:var(--ink);line-height:1.38;letter-spacing:-.02em}
.article-content h2{margin:34px 0 15px;font-size:29px}
.article-content h3{margin:27px 0 12px;font-size:21px}
.article-content p{margin:0 0 20px}
.article-content img{border-radius:14px;margin:25px 0}
.article-content blockquote{margin:27px 0;padding:18px 22px;border-left:4px solid var(--orange);background:var(--orange-pale);border-radius:0 12px 12px 0;color:var(--ink)}
.article-content ul,.article-content ol{padding-left:25px;margin:12px 0 24px}
.article-content li{margin:7px 0}
.article-content a{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px}
.article-aside{position:sticky;top:104px}
.aside-card{padding:25px;background:var(--charcoal);border-radius:var(--radius);color:#fff;box-shadow:var(--shadow)}
.aside-label{margin:0 0 12px;color:#ff9b84;font-size:12px;font-weight:800;letter-spacing:.1em}
.aside-card h2{margin:0;font-size:24px;line-height:1.4}
.aside-card p{margin:14px 0 22px;color:#cbd1cb;font-size:14px;line-height:1.8}
.aside-card .btn{width:100%}
.aside-list{margin-top:18px;padding:21px 22px;background:var(--sand);border:1px solid var(--line);border-radius:var(--radius)}
.aside-list h3{margin:0 0 13px;font-size:17px}
.aside-list ul{list-style:none;padding:0;margin:0}
.aside-list li{padding:9px 0;border-bottom:1px solid var(--line);color:var(--ink-soft);font-size:14px}
.aside-list li:last-child{border-bottom:0}
.aside-list li:before{content:"";display:inline-block;width:6px;height:6px;margin:0 8px 2px 0;border-radius:50%;background:var(--mint)}
.missing{padding:55px 25px;text-align:center}
.missing h2{margin:0 0 14px;font-size:30px}
.missing p{margin:0 0 25px;color:var(--muted)}
.related-section{padding:72px 0;background:var(--sand)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{margin:0;font-size:clamp(27px,3.3vw,38px);line-height:1.3;letter-spacing:-.035em}
.section-head p{max-width:530px;margin:0;color:var(--muted)}
.topic-row{display:flex;flex-wrap:wrap;gap:12px}
.topic-tag{display:inline-flex;align-items:center;padding:11px 16px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink-soft);font-weight:700;transition:.2s ease}
.topic-tag:hover{border-color:var(--orange);color:var(--orange-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
.download-section{padding:76px 0;background:var(--charcoal);color:#fff}
.download-grid{display:grid;grid-template-columns:1fr .8fr;gap:45px;align-items:center}
.download-section .eyebrow{color:#ff9b84}
.download-section h2{max-width:650px;margin:0;font-size:clamp(29px,4vw,45px);line-height:1.3;letter-spacing:-.04em}
.download-section p{max-width:610px;margin:17px 0 0;color:#cbd1cb;line-height:1.9}
.download-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}
.download-panel{padding:27px;border:1px solid rgba(255,255,255,.14);border-radius:17px;background:var(--charcoal-2)}
.download-panel strong{font-size:20px}
.download-panel p{margin:9px 0 20px;font-size:14px}
.download-points{display:grid;grid-template-columns:repeat(2,1fr);gap:11px;margin:0;padding:0;list-style:none}
.download-points li{padding:11px 12px;border-radius:9px;background:rgba(255,255,255,.08);color:#dce2dc;font-size:13px}
.download-points li:before{content:"✓";margin-right:7px;color:#8ce4cc;font-weight:900}
.site-footer{background:var(--charcoal);color:#fff;border-top:1px solid rgba(255,255,255,.08)}
.footer-main{display:grid;grid-template-columns:1.45fr .8fr .8fr 1fr;gap:34px;padding:62px 0 48px}
.footer-logo{color:#fff}
.footer-brand p{max-width:340px;margin:18px 0 0;color:#aeb7ae;font-size:14px;line-height:1.85}
.footer-title{margin:2px 0 15px;font-size:15px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#aeb7ae;font-size:14px;transition:.2s ease}
.footer-links a:hover{color:#ff9b84}
.footer-download{padding:20px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.045)}
.footer-download strong{font-size:17px}
.footer-download p{margin:8px 0 17px;color:#aeb7ae;font-size:13px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);color:#89938a;font-size:12px}
.footer-tags{display:flex;gap:9px;flex-wrap:wrap}
.footer-tags span{padding:4px 8px;border:1px solid rgba(255,255,255,.12);border-radius:6px}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:30px}
  .footer-main{grid-template-columns:1.2fr .8fr .8fr}
  .footer-download{grid-column:span 3}
}
@media (max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .nav-wrap{height:68px}
  .nav-cta{display:none}
  .menu-toggle{display:block}
  .nav-links{display:none;position:absolute;top:68px;right:16px;left:16px;padding:10px;flex-direction:column;align-items:stretch;border:1px solid var(--line);border-radius:14px;background:var(--paper);box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px}
  .nav-links a.active:after{right:14px;left:auto;width:24px}
  .article-hero{padding:52px 0 55px}
  .content-section{padding:48px 0 60px}
  .article-layout{display:block}
  .article-aside{position:static;margin-top:25px}
  .article-card{padding:28px 23px}
  .article-content{font-size:16px}
  .download-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding:45px 0 35px}
  .footer-download{grid-column:span 2}
}
@media (max-width:520px){
  .brand-copy small{font-size:8px}
  .brand-copy strong{font-size:14px}
  .article-head h1{font-size:34px}
  .article-meta{gap:8px 15px;font-size:13px}
  .article-card{border-radius:14px;padding:23px 18px}
  .article-content h2{font-size:25px}
  .section-head{display:block}
  .section-head p{margin-top:10px}
  .download-points{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr}
  .footer-download{grid-column:auto}
  .footer-bottom{display:block}
  .footer-tags{margin-top:12px}
}

/* roulang page: category3 */
:root{
      --ink:#1d211f;
      --ink-soft:#444b46;
      --muted:#737a74;
      --paper:#fbfaf7;
      --sand:#f2efe8;
      --line:#e5e0d6;
      --orange:#ef5a36;
      --orange-dark:#cf3e20;
      --orange-pale:#fff0ea;
      --mint:#1d9f88;
      --mint-pale:#e6f6f1;
      --plum:#775b94;
      --plum-pale:#f0eafa;
      --charcoal:#202421;
      --charcoal-2:#2c322e;
      --white:#fff;
      --shadow:0 14px 38px rgba(31,37,33,.08);
      --shadow-hover:0 20px 44px rgba(31,37,33,.14);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(229,224,214,.9);background:rgba(251,250,247,.95);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0}
    .brand-mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-weight:900;font-size:23px;line-height:1;box-shadow:0 8px 18px rgba(239,90,54,.22)}
    .brand-mark:after{content:"";position:absolute;width:9px;height:9px;right:-3px;top:-3px;border-radius:50%;background:var(--mint);border:2px solid var(--paper)}
    .brand-copy{display:flex;flex-direction:column;line-height:1.16}
    .brand-copy strong{font-size:16px;letter-spacing:.01em;white-space:nowrap}
    .brand-copy small{color:var(--muted);font-size:10px;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
    .nav-links{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}
    .nav-links a{position:relative;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:700;transition:.2s ease}
    .nav-links a:hover{background:var(--orange-pale);color:var(--orange-dark)}
    .nav-links a.active{color:var(--ink)}
    .nav-links a.active:after{content:"";position:absolute;right:12px;bottom:2px;left:12px;height:3px;border-radius:4px;background:var(--orange)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:800;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible{outline:3px solid rgba(29,159,136,.42);outline-offset:3px}
    .btn-primary{background:var(--orange);color:#fff;box-shadow:0 9px 19px rgba(239,90,54,.2)}
    .btn-primary:hover{background:var(--orange-dark);box-shadow:0 12px 22px rgba(207,62,32,.27)}
    .btn-ghost{background:transparent;border-color:#d6d0c5;color:var(--ink)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);background:var(--orange-pale)}
    .nav-cta{white-space:nowrap;min-height:40px;padding:0 15px;font-size:14px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:76px 0 84px;background:linear-gradient(116deg,#f4efe5 0%,#fbfaf7 53%,#ebf7f3 100%)}
    .hero:before{content:"";position:absolute;width:480px;height:480px;right:-190px;top:-245px;border:58px solid rgba(239,90,54,.1);border-radius:50%}
    .hero:after{content:"";position:absolute;width:220px;height:220px;left:-92px;bottom:-152px;border:34px solid rgba(29,159,136,.1);border-radius:50%}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:64px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:2px;background:currentColor}
    .hero h1{max-width:670px;margin:0;font-size:clamp(40px,5vw,62px);line-height:1.16;letter-spacing:-.045em}
    .hero h1 em{font-style:normal;color:var(--orange)}
    .hero p{max-width:610px;margin:23px 0 0;color:var(--ink-soft);font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:30px;padding-top:20px;border-top:1px solid rgba(71,75,69,.14);color:var(--muted);font-size:13px;font-weight:700}
    .hero-meta span{display:flex;align-items:center;gap:7px}
    .hero-meta i{width:8px;height:8px;border-radius:50%;background:var(--mint)}
    .app-stage{position:relative;min-height:420px}
    .app-card{position:absolute;inset:10px 18px 0 22px;padding:25px;border-radius:28px;background:var(--charcoal);color:#fff;box-shadow:0 26px 54px rgba(26,30,27,.2);overflow:hidden}
    .app-card:before{content:"";position:absolute;width:270px;height:270px;right:-105px;top:-115px;border:38px solid rgba(239,90,54,.82);border-radius:50%}
    .app-card:after{content:"";position:absolute;width:210px;height:210px;left:-115px;bottom:-125px;border:28px solid rgba(29,159,136,.7);border-radius:50%}
    .phone{position:absolute;z-index:2;right:48px;bottom:-25px;width:205px;height:382px;padding:9px;border:6px solid #3a413c;border-radius:30px;background:#111512;box-shadow:0 20px 35px rgba(0,0,0,.3);transform:rotate(5deg)}
    .phone-screen{height:100%;padding:18px 13px;border-radius:21px;background:#f8f5ef;color:var(--ink)}
    .phone-notch{width:62px;height:12px;margin:-12px auto 14px;border-radius:0 0 10px 10px;background:#111512}
    .phone-brand{font-size:12px;font-weight:900;color:var(--orange-dark)}
    .phone-title{margin-top:30px;font-size:22px;font-weight:900;line-height:1.3}
    .phone-line{height:8px;margin-top:9px;border-radius:5px;background:#ded8ce}
    .phone-line.short{width:65%}
    .phone-panel{margin-top:25px;padding:13px;border-radius:13px;background:var(--mint-pale)}
    .phone-panel b{font-size:12px;color:var(--mint)}
    .phone-row{display:flex;justify-content:space-between;margin-top:12px;padding-top:10px;border-top:1px solid rgba(29,159,136,.18);font-size:11px}
    .app-caption{position:relative;z-index:1;max-width:250px;margin-top:38px;font-size:12px;color:#c8d0c9}
    .app-caption strong{display:block;margin-bottom:8px;color:#fff;font-size:25px;line-height:1.25}
    .section{padding:86px 0}
    .section-sand{background:var(--sand)}
    .section-dark{background:var(--charcoal);color:#fff}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:31px}
    .kicker{margin-bottom:10px;color:var(--orange-dark);font-size:13px;font-weight:900;letter-spacing:.08em}
    .section-head h2{max-width:700px;margin:0;font-size:clamp(28px,3.3vw,40px);line-height:1.25;letter-spacing:-.03em}
    .section-head p{max-width:470px;margin:0;color:var(--muted)}
    .section-dark .kicker{color:#ff9b84}
    .section-dark .section-head p{color:#b7c0b8}
    .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .feature-panel,.info-card,.step-card,.security-card,.faq-item,.download-box{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .feature-panel{padding:31px;min-height:270px;position:relative;overflow:hidden}
    .feature-panel h3{max-width:470px;margin:0 0 13px;font-size:25px}
    .feature-panel p{max-width:490px;color:var(--ink-soft)}
    .panel-mark{position:absolute;right:28px;bottom:22px;color:var(--orange);font-size:90px;font-weight:900;line-height:1;opacity:.12}
    .mini-stack{display:grid;gap:20px}
    .info-card{padding:25px;transition:.25s ease}
    .info-card:hover,.step-card:hover,.security-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .info-card .num{color:var(--orange);font-size:13px;font-weight:900}
    .info-card h3{margin:12px 0 7px;font-size:20px}
    .info-card p{margin:0;color:var(--muted);font-size:14px}
    .app-benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .benefit{padding:24px 20px;border-top:3px solid var(--orange);background:var(--white);border-radius:0 0 var(--radius-sm) var(--radius-sm)}
    .benefit:nth-child(2){border-color:var(--mint)}
    .benefit:nth-child(3){border-color:var(--plum)}
    .benefit:nth-child(4){border-color:#d59a32}
    .benefit strong{display:block;margin-bottom:9px;font-size:18px}
    .benefit span{display:block;color:var(--muted);font-size:14px}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-box{padding:31px;border-radius:var(--radius);background:var(--white);border:1px solid var(--line)}
    .compare-box.highlight{background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
    .compare-box h3{margin:0 0 18px;font-size:23px}
    .compare-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .compare-list li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-soft);font-size:14px}
    .highlight .compare-list li{color:#d9e1da}
    .compare-list li:before{content:"✓";font-weight:900;color:var(--mint)}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .step-card{padding:27px;background:var(--paper)}
    .step-number{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--orange-pale);color:var(--orange-dark);font-size:18px;font-weight:900}
    .step-card h3{margin:19px 0 8px;font-size:20px}
    .step-card p{margin:0;color:var(--muted);font-size:14px}
    .security-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}
    .security-intro{padding:34px;border-radius:var(--radius);background:var(--mint-pale)}
    .security-intro h2{margin:0 0 15px;font-size:30px;line-height:1.3}
    .security-intro p{margin:0;color:var(--ink-soft)}
    .security-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .security-card{padding:23px;background:var(--white)}
    .security-card h3{margin:0 0 7px;font-size:18px}
    .security-card p{margin:0;color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:12px;max-width:900px}
    .faq-item{padding:21px 24px;background:var(--white)}
    .faq-item h3{margin:0 0 7px;font-size:17px}
    .faq-item p{margin:0;color:var(--muted);font-size:14px}
    .download-section{padding:74px 0;background:var(--orange-pale)}
    .download-box{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:36px 40px;background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
    .download-box h2{margin:0 0 9px;font-size:32px;line-height:1.3}
    .download-box p{margin:0;color:#c6cec7}
    .download-box .btn{flex:none}
    .site-footer{padding:63px 0 0;background:var(--charcoal);color:#fff}
    .footer-main{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:38px;padding-bottom:48px}
    .footer-brand p{max-width:310px;margin:19px 0 0;color:#aeb8b0;font-size:14px}
    .footer-logo .brand-copy strong{color:#fff}
    .footer-logo .brand-copy small{color:#aeb8b0}
    .footer-title{margin:4px 0 17px;font-size:15px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{width:max-content;color:#aeb8b0;font-size:14px;transition:.2s ease}
    .footer-links a:hover{color:#ff947b}
    .footer-download{padding:20px;border:1px solid rgba(255,255,255,.12);border-radius:15px;background:rgba(255,255,255,.05)}
    .footer-download strong{font-size:17px}
    .footer-download p{margin:8px 0 16px;color:#aeb8b0;font-size:13px}
    .footer-download .btn{min-height:40px;font-size:13px}
    .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);color:#8e9990;font-size:12px}
    .footer-tags{display:flex;gap:8px}
    .footer-tags span{padding:4px 9px;border:1px solid rgba(255,255,255,.14);border-radius:6px}
    @media(max-width:1024px){
      .nav-links a{padding:9px 7px;font-size:13px}
      .hero-grid{gap:35px}
      .app-benefits{grid-template-columns:repeat(2,1fr)}
      .footer-main{grid-template-columns:1.3fr 1fr 1fr}
      .footer-download{grid-column:span 3}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:68px}
      .menu-toggle{display:block}
      .nav-cta{display:none}
      .nav-links{display:none;position:absolute;top:68px;right:16px;left:16px;padding:10px;align-items:stretch;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow)}
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .hero{padding:55px 0 64px}
      .hero-grid,.feature-grid,.security-grid{grid-template-columns:1fr}
      .hero h1{font-size:41px}
      .hero p{font-size:16px}
      .app-stage{min-height:380px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .compare,.steps{grid-template-columns:1fr}
      .security-list{grid-template-columns:1fr 1fr}
      .download-box{display:block;padding:30px}
      .download-box .btn{margin-top:22px}
      .footer-main{grid-template-columns:1fr 1fr}
      .footer-download{grid-column:span 2}
      .footer-bottom{display:block}
      .footer-tags{margin-top:12px}
    }
    @media(max-width:520px){
      .brand-copy small{font-size:8px}
      .brand-copy strong{font-size:15px}
      .hero h1{font-size:34px}
      .hero-actions .btn{width:100%}
      .app-card{inset:8px 0 0 0}
      .phone{right:20px;width:172px;height:335px}
      .app-caption{max-width:190px}
      .app-caption strong{font-size:21px}
      .app-benefits,.security-list{grid-template-columns:1fr}
      .feature-panel{padding:24px}
      .download-box h2{font-size:27px}
      .footer-main{grid-template-columns:1fr}
      .footer-download{grid-column:auto}
      .footer-bottom{font-size:11px}
    }

/* roulang page: category2 */
:root{
      --ink:#1d211f;
      --ink-soft:#444b46;
      --muted:#737a74;
      --paper:#fbfaf7;
      --sand:#f2efe8;
      --line:#e5e0d6;
      --orange:#ef5a36;
      --orange-dark:#cf3e20;
      --orange-pale:#fff0ea;
      --mint:#1d9f88;
      --mint-pale:#e6f6f1;
      --plum:#775b94;
      --plum-pale:#f0eafa;
      --charcoal:#202421;
      --charcoal-2:#2c322e;
      --white:#fff;
      --shadow:0 14px 38px rgba(31,37,33,.08);
      --shadow-hover:0 20px 44px rgba(31,37,33,.14);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(229,224,214,.9);background:rgba(251,250,247,.95);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0}
    .brand-mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-weight:900;font-size:23px;line-height:1;box-shadow:0 8px 18px rgba(239,90,54,.22)}
    .brand-mark:after{content:"";position:absolute;width:9px;height:9px;right:-3px;top:-3px;border-radius:50%;background:var(--mint);border:2px solid var(--paper)}
    .brand-copy{display:flex;flex-direction:column;line-height:1.16}
    .brand-copy strong{font-size:16px;letter-spacing:.01em;white-space:nowrap}
    .brand-copy small{color:var(--muted);font-size:10px;letter-spacing:.08em;white-space:nowrap}
    .nav-links{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}
    .nav-links a{position:relative;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:700;transition:.2s ease}
    .nav-links a:hover{background:var(--orange-pale);color:var(--orange-dark)}
    .nav-links a.active{color:var(--ink)}
    .nav-links a.active:after{content:"";position:absolute;right:12px;bottom:2px;left:12px;height:3px;border-radius:4px;background:var(--orange)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:800;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible,.topic-card:focus-visible{outline:3px solid rgba(29,159,136,.42);outline-offset:3px}
    .btn-primary{background:var(--orange);color:#fff;box-shadow:0 9px 19px rgba(239,90,54,.2)}
    .btn-primary:hover{background:var(--orange-dark);box-shadow:0 12px 22px rgba(207,62,32,.27)}
    .btn-ghost{background:transparent;border-color:#d6d0c5;color:var(--ink)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);background:var(--orange-pale)}
    .nav-cta{white-space:nowrap;min-height:40px;padding:0 15px;font-size:14px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:76px 0 82px;background:linear-gradient(115deg,#f4efe5 0%,#fbfaf7 52%,#ebf7f3 100%)}
    .hero:before{content:"";position:absolute;width:520px;height:520px;right:-220px;top:-285px;border:62px solid rgba(239,90,54,.1);border-radius:50%}
    .hero:after{content:"";position:absolute;width:230px;height:230px;left:-100px;bottom:-157px;border:35px solid rgba(29,159,136,.1);border-radius:50%}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr .78fr;gap:72px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:2px;background:currentColor}
    h1{max-width:700px;margin:0;font-size:clamp(40px,5.4vw,64px);line-height:1.16;letter-spacing:-.045em}
    h1 em{font-style:normal;color:var(--orange)}
    .hero-copy{max-width:650px;margin:23px 0 0;color:var(--ink-soft);font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
    .hero-note{display:flex;flex-wrap:wrap;gap:21px;margin-top:28px;color:var(--muted);font-size:13px;font-weight:700}
    .hero-note span{display:flex;align-items:center;gap:7px}
    .hero-note i{width:8px;height:8px;border-radius:50%;background:var(--mint)}
    .score-panel{position:relative;min-height:350px;padding:29px;border-radius:25px;background:var(--charcoal);color:#fff;overflow:hidden;box-shadow:0 25px 54px rgba(26,30,27,.18)}
    .score-panel:before{content:"";position:absolute;right:-85px;top:-105px;width:270px;height:270px;border:39px solid rgba(239,90,54,.88);border-radius:50%}
    .score-panel:after{content:"";position:absolute;left:-75px;bottom:-90px;width:210px;height:210px;border:27px solid rgba(29,159,136,.68);border-radius:50%}
    .panel-top{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;color:#cfd8d1;font-size:13px}
    .live-pill{display:inline-flex;align-items:center;gap:7px;padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.1)}
    .live-pill b{width:7px;height:7px;border-radius:50%;background:#ff7959}
    .panel-title{position:relative;z-index:1;max-width:350px;margin:58px 0 33px;font-size:34px;line-height:1.25;letter-spacing:-.04em}
    .panel-title strong{display:block;color:#ff8060}
    .match-list{position:relative;z-index:1;display:grid;gap:10px}
    .match-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border:1px solid rgba(255,255,255,.14);border-radius:11px;background:rgba(255,255,255,.08);font-size:13px}
    .match-item b{color:#8ce4cc;font-size:12px}
    .section{padding:84px 0}
    .section-sand{background:var(--sand)}
    .section-dark{background:var(--charcoal);color:#fff}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .kicker{margin:0 0 10px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-dark .kicker{color:#ff9b84}
    .section-head h2{max-width:700px;margin:0;font-size:clamp(28px,3.5vw,40px);line-height:1.25;letter-spacing:-.035em}
    .section-head p{max-width:500px;margin:0;color:var(--muted)}
    .section-dark .section-head p{color:#b6c0b9}
    .topic-grid{display:grid;grid-template-columns:1.12fr .88fr .88fr;gap:18px}
    .topic-card{position:relative;min-height:245px;padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden;transition:.25s ease}
    .topic-card:hover{transform:translateY(-5px);border-color:#d9b9ad;box-shadow:var(--shadow-hover)}
    .topic-card.large{min-height:310px;background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
    .topic-card.large:after{content:"";position:absolute;right:-58px;bottom:-78px;width:210px;height:210px;border:28px solid rgba(239,90,54,.78);border-radius:50%}
    .topic-number{display:inline-grid;place-items:center;width:35px;height:35px;border-radius:10px;background:var(--orange-pale);color:var(--orange-dark);font-weight:900}
    .topic-card.large .topic-number{background:rgba(255,255,255,.12);color:#ff9b84}
    .topic-card h3{position:relative;z-index:1;margin:34px 0 10px;font-size:22px;line-height:1.35}
    .topic-card p{position:relative;z-index:1;margin:0;color:var(--muted);font-size:14px;line-height:1.8}
    .topic-card.large p{color:#c2ccc5;max-width:400px}
    .split-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
    .intro-copy h2{margin:0;font-size:clamp(28px,3.5vw,40px);line-height:1.3}
    .intro-copy>p{margin:20px 0 0;color:var(--ink-soft)}
    .signal-list{margin:28px 0 0;padding:0;list-style:none}
    .signal-list li{display:flex;gap:14px;padding:17px 0;border-top:1px solid var(--line)}
    .signal-list li:last-child{border-bottom:1px solid var(--line)}
    .signal-list strong{display:block;margin-bottom:3px}
    .signal-list span{display:block;color:var(--muted);font-size:14px}
    .signal-icon{flex:0 0 33px;display:grid;place-items:center;height:33px;border-radius:9px;background:var(--mint-pale);color:var(--mint);font-weight:900}
    .event-board{padding:30px;border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .event-board-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid var(--line)}
    .event-board-head strong{font-size:19px}
    .status{padding:5px 9px;border-radius:7px;background:var(--mint-pale);color:#137c6b;font-size:12px;font-weight:800}
    .event-row{display:grid;grid-template-columns:86px 1fr auto;align-items:center;gap:18px;padding:19px 0;border-bottom:1px solid var(--line)}
    .event-row:last-child{border-bottom:0;padding-bottom:0}
    .event-date{color:var(--orange-dark);font-size:13px;font-weight:800}
    .event-row strong{display:block}
    .event-row small{color:var(--muted)}
    .event-tag{padding:5px 8px;border-radius:7px;background:var(--plum-pale);color:var(--plum);font-size:12px;font-weight:800}
    .route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .route-card{padding:26px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line)}
    .route-card:nth-child(2){background:var(--mint-pale);border-color:#c9e9df}
    .route-card:nth-child(3){background:var(--orange-pale);border-color:#f4d2c7}
    .route-card .route-no{font-size:13px;color:var(--orange-dark);font-weight:900}
    .route-card h3{margin:26px 0 9px;font-size:21px}
    .route-card p{margin:0;color:var(--muted);font-size:14px}
    .quote-wrap{display:grid;grid-template-columns:.76fr 1.24fr;gap:50px;align-items:center}
    .quote-mark{font-size:100px;line-height:.6;color:var(--orange)}
    .quote-copy{margin:18px 0 0;font-size:25px;line-height:1.55;letter-spacing:-.02em}
    .quote-source{margin-top:20px;color:#aeb9b1;font-size:14px}
    .fact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);overflow:hidden}
    .fact{padding:27px;background:var(--charcoal-2)}
    .fact b{display:block;color:#ff9b84;font-size:32px;line-height:1.2}
    .fact strong{display:block;margin-top:12px}
    .fact span{display:block;margin-top:5px;color:#b5c0b8;font-size:14px}
    .faq-list{max-width:900px;margin:0 auto}
    .faq-item{padding:22px 0;border-bottom:1px solid var(--line)}
    .faq-item:first-child{border-top:1px solid var(--line)}
    .faq-item summary{cursor:pointer;list-style:none;padding-right:35px;position:relative;font-size:18px;font-weight:800}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:0;top:-2px;color:var(--orange);font-size:26px;font-weight:400}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{max-width:800px;margin:13px 0 0;color:var(--muted);font-size:15px}
    .cta-panel{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:40px 45px;border-radius:24px;background:linear-gradient(115deg,var(--orange) 0%,#d94b2b 100%);color:#fff;box-shadow:0 20px 44px rgba(207,62,32,.19)}
    .cta-panel h2{margin:0;font-size:clamp(26px,3.5vw,38px);line-height:1.3}
    .cta-panel p{margin:10px 0 0;color:#ffe4dc}
    .cta-panel .btn{background:#fff;color:var(--orange-dark)}
    .cta-panel .btn:hover{background:#fff4ef}
    .site-footer{padding-top:62px;background:var(--charcoal);color:#fff}
    .footer-main{display:grid;grid-template-columns:1.35fr .72fr .72fr .9fr;gap:40px;padding-bottom:52px}
    .footer-logo{color:#fff}
    .footer-brand>p{max-width:330px;margin:20px 0 0;color:#adb8b0;font-size:14px}
    .footer-title{margin:6px 0 18px;font-size:15px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:#aeb8b1;font-size:14px;transition:.2s ease}
    .footer-links a:hover{color:#ff9b84}
    .footer-download{padding:21px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.05)}
    .footer-download strong{font-size:17px}
    .footer-download p{margin:9px 0 17px;color:#adb8b0;font-size:13px}
    .footer-download .btn{min-height:40px;padding:0 14px;font-size:13px}
    .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);color:#8d9991;font-size:12px}
    .footer-tags{display:flex;gap:8px;flex-wrap:wrap}
    .footer-tags span{padding:4px 8px;border:1px solid rgba(255,255,255,.14);border-radius:6px}
    @media(max-width:1024px){
      .hero-inner{gap:38px}
      .topic-grid{grid-template-columns:1fr 1fr}
      .topic-card.large{grid-column:span 2}
      .split-layout{gap:35px}
      .footer-main{grid-template-columns:1.2fr 1fr 1fr}
      .footer-download{grid-column:span 3}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:70px}
      .nav-cta{display:none}
      .menu-toggle{display:block}
      .nav-links{position:absolute;display:none;left:16px;right:16px;top:78px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links a.active:after{right:auto;bottom:7px;left:14px;width:25px}
      .hero{padding:56px 0 62px}
      .hero-inner,.split-layout,.quote-wrap{grid-template-columns:1fr}
      .hero-inner{gap:38px}
      .score-panel{min-height:320px}
      .section{padding:60px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .route-grid{grid-template-columns:1fr}
      .fact-grid{grid-template-columns:1fr}
      .fact{padding:22px}
      .cta-panel{display:block;padding:30px 25px}
      .cta-panel .btn{margin-top:22px}
      .footer-main{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand,.footer-download{grid-column:span 2}
      .footer-bottom{display:block}
      .footer-tags{margin-top:12px}
    }
    @media(max-width:520px){
      .brand-copy small{font-size:9px;letter-spacing:0}
      h1{font-size:36px}
      .hero-copy{font-size:15px}
      .hero-actions{display:grid}
      .hero-actions .btn{width:100%}
      .score-panel{padding:23px}
      .panel-title{margin-top:48px;font-size:28px}
      .topic-grid{grid-template-columns:1fr}
      .topic-card.large{grid-column:auto}
      .topic-card{min-height:220px}
      .event-board{padding:21px}
      .event-row{grid-template-columns:1fr auto;gap:5px 12px}
      .event-date{grid-column:1/-1}
      .event-tag{grid-column:2;grid-row:2}
      .quote-copy{font-size:21px}
      .footer-main{grid-template-columns:1fr}
      .footer-brand,.footer-download{grid-column:auto}
    }

/* roulang page: category1 */
:root{
      --ink:#1d211f;
      --ink-soft:#444b46;
      --muted:#737a74;
      --paper:#fbfaf7;
      --sand:#f2efe8;
      --line:#e5e0d6;
      --orange:#ef5a36;
      --orange-dark:#cf3e20;
      --orange-pale:#fff0ea;
      --mint:#1d9f88;
      --mint-pale:#e6f6f1;
      --plum:#775b94;
      --plum-pale:#f0eafa;
      --charcoal:#202421;
      --charcoal-2:#2c322e;
      --white:#fff;
      --shadow:0 14px 38px rgba(31,37,33,.08);
      --shadow-hover:0 20px 44px rgba(31,37,33,.14);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(229,224,214,.9);background:rgba(251,250,247,.95);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0}
    .brand-mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-weight:900;font-size:23px;line-height:1;box-shadow:0 8px 18px rgba(239,90,54,.22)}
    .brand-mark:after{content:"";position:absolute;width:9px;height:9px;right:-3px;top:-3px;border-radius:50%;background:var(--mint);border:2px solid var(--paper)}
    .brand-copy{display:flex;flex-direction:column;line-height:1.16}
    .brand-copy strong{font-size:16px;letter-spacing:.01em;white-space:nowrap}
    .brand-copy small{color:var(--muted);font-size:10px;letter-spacing:.08em;white-space:nowrap}
    .nav-links{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}
    .nav-links a{position:relative;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:700;transition:.2s ease}
    .nav-links a:hover{background:var(--orange-pale);color:var(--orange-dark)}
    .nav-links a.active{color:var(--ink)}
    .nav-links a.active:after{content:"";position:absolute;right:12px;bottom:2px;left:12px;height:3px;border-radius:4px;background:var(--orange)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:800;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible{outline:3px solid rgba(29,159,136,.42);outline-offset:3px}
    .btn-primary{background:var(--orange);color:#fff;box-shadow:0 9px 19px rgba(239,90,54,.2)}
    .btn-primary:hover{background:var(--orange-dark);box-shadow:0 12px 22px rgba(207,62,32,.27)}
    .btn-ghost{background:transparent;border-color:#d6d0c5;color:var(--ink)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);background:var(--orange-pale)}
    .nav-cta{white-space:nowrap;min-height:40px;padding:0 15px;font-size:14px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:74px 0 82px;background:linear-gradient(116deg,#f4efe5 0%,#fbfaf7 55%,#ebf7f3 100%)}
    .hero:before{content:"";position:absolute;width:470px;height:470px;right:-170px;top:-260px;border:58px solid rgba(239,90,54,.1);border-radius:50%}
    .hero:after{content:"";position:absolute;width:230px;height:230px;left:-110px;bottom:-155px;border:34px solid rgba(29,159,136,.1);border-radius:50%}
    .hero-content{position:relative;z-index:1;max-width:850px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 17px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:2px;background:currentColor}
    .hero h1{max-width:820px;margin:0;font-size:clamp(40px,5.5vw,66px);line-height:1.15;letter-spacing:-.045em}
    .hero h1 em{font-style:normal;color:var(--orange)}
    .hero p{max-width:720px;margin:24px 0 0;color:var(--ink-soft);font-size:17px;line-height:1.92}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
    .hero-note{display:flex;align-items:center;gap:9px;margin-top:25px;color:var(--muted);font-size:13px;font-weight:700}
    .hero-note span{width:9px;height:9px;border-radius:50%;background:var(--mint)}
    .section{padding:84px 0}
    .section-sand{background:var(--sand)}
    .section-dark{background:var(--charcoal);color:#fff}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .kicker{margin:0 0 9px;color:var(--orange-dark);font-size:12px;font-weight:900;letter-spacing:.13em}
    .section-dark .kicker{color:#ff9b84}
    .section-head h2{max-width:680px;margin:0;font-size:clamp(28px,3.3vw,40px);line-height:1.25;letter-spacing:-.035em}
    .section-head p{max-width:500px;margin:0;color:var(--muted)}
    .section-dark p{color:#bac2bb}
    .pulse{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .pulse-item{padding:27px 24px;border-right:1px solid var(--line)}
    .pulse-item:last-child{border-right:0}
    .pulse b{display:block;font-size:25px;line-height:1.2}
    .pulse span{display:block;margin-top:8px;color:var(--muted);font-size:13px}
    .feature-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:54px;align-items:center}
    .feature-copy h2{margin:0 0 18px;font-size:clamp(29px,3.2vw,42px);line-height:1.3}
    .feature-copy p{color:var(--ink-soft);margin:0}
    .feature-list{display:grid;gap:14px}
    .feature-item{display:flex;gap:17px;align-items:flex-start;padding:21px 22px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.22s ease}
    .feature-item:hover{transform:translateX(5px);box-shadow:var(--shadow)}
    .feature-icon{display:grid;place-items:center;flex:0 0 38px;height:38px;border-radius:11px;background:var(--orange-pale);color:var(--orange-dark);font-weight:900}
    .feature-item:nth-child(2) .feature-icon{background:var(--mint-pale);color:var(--mint)}
    .feature-item:nth-child(3) .feature-icon{background:var(--plum-pale);color:var(--plum)}
    .feature-item h3{margin:0 0 4px;font-size:18px}
    .feature-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .topic-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:18px}
    .topic-card{min-height:218px;padding:28px;border-radius:var(--radius);position:relative;overflow:hidden;background:var(--white);border:1px solid var(--line);transition:.22s ease}
    .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
    .topic-card.large{grid-row:span 2;min-height:454px;background:var(--charcoal);color:#fff}
    .topic-card.mint{background:var(--mint-pale)}
    .topic-card.plum{background:var(--plum-pale)}
    .topic-card:after{content:"";position:absolute;width:130px;height:130px;right:-48px;bottom:-56px;border:20px solid rgba(239,90,54,.15);border-radius:50%}
    .topic-label{display:inline-block;padding:5px 9px;border-radius:7px;background:var(--orange-pale);color:var(--orange-dark);font-size:12px;font-weight:800}
    .topic-card.large .topic-label{background:rgba(239,90,54,.17);color:#ff9b84}
    .topic-card h3{margin:26px 0 10px;font-size:23px;line-height:1.35}
    .topic-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .topic-card.large p{color:#c5cdc6}
    .topic-mark{position:absolute;right:27px;bottom:25px;font-size:48px;font-weight:900;line-height:1;color:rgba(255,255,255,.13)}
    .topic-card:not(.large) .topic-mark{color:rgba(29,33,31,.1)}
    .content-band{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .content-panel{padding:34px;border-radius:var(--radius);background:var(--white);border:1px solid var(--line)}
    .content-panel.dark{background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
    .content-panel h3{margin:0 0 14px;font-size:24px}
    .content-panel p{margin:0;color:var(--muted);font-size:15px}
    .content-panel.dark p{color:#bcc4bd}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
    .tag{padding:7px 11px;border-radius:8px;background:var(--sand);color:var(--ink-soft);font-size:13px;font-weight:700}
    .dark .tag{background:rgba(255,255,255,.1);color:#e1e8e2}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .service-card{padding:27px 25px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper)}
    .service-card strong{display:block;margin-bottom:10px;font-size:18px}
    .service-card p{margin:0;color:var(--muted);font-size:14px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .faq-item{padding:22px 24px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm)}
    .faq-item h3{margin:0 0 8px;font-size:17px}
    .faq-item p{margin:0;color:var(--muted);font-size:14px}
    .cta{padding:60px 0;background:var(--orange-pale)}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:38px 44px;border-radius:24px;background:var(--charcoal);color:#fff}
    .cta-box h2{margin:0;font-size:clamp(26px,3vw,37px);line-height:1.3}
    .cta-box p{margin:10px 0 0;color:#c0c8c1}
    .site-footer{background:var(--charcoal);color:#fff}
    .footer-main{display:grid;grid-template-columns:1.45fr .75fr .75fr 1fr;gap:38px;padding:61px 0 47px}
    .footer-brand p{max-width:300px;margin:18px 0 0;color:#aeb7b0;font-size:14px}
    .footer-logo .brand-copy strong{color:#fff}
    .footer-logo .brand-copy small{color:#9da89f}
    .footer-title{margin:3px 0 17px;font-size:15px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:#aeb7b0;font-size:14px;transition:.2s ease}
    .footer-links a:hover{color:#ff967b}
    .footer-download{padding:22px;border:1px solid rgba(255,255,255,.13);border-radius:var(--radius-sm);background:var(--charcoal-2)}
    .footer-download strong{font-size:17px}
    .footer-download p{margin:8px 0 18px;color:#aeb7b0;font-size:13px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);color:#8f9990;font-size:12px}
    .footer-tags{display:flex;gap:16px}
    @media (max-width:1024px){
      .hero{padding:62px 0 70px}
      .feature-layout{gap:32px}
      .footer-main{grid-template-columns:1.2fr 1fr 1fr}
      .footer-download{grid-column:span 3}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:68px}
      .nav-cta{display:none}
      .menu-toggle{display:block}
      .nav-links{position:absolute;display:none;top:68px;right:16px;left:16px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links a.active:after{right:auto;bottom:8px;left:5px;width:3px;height:18px}
      .hero{padding:51px 0 59px}
      .hero h1{font-size:39px}
      .hero p{font-size:16px}
      .pulse{grid-template-columns:1fr 1fr}
      .pulse-item:nth-child(2){border-right:0}
      .pulse-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .feature-layout,.content-band{grid-template-columns:1fr}
      .topic-grid{grid-template-columns:1fr 1fr}
      .topic-card.large{grid-column:span 2;grid-row:auto;min-height:280px}
      .service-grid{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .cta-box{padding:31px 25px;align-items:flex-start;flex-direction:column}
      .footer-main{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand,.footer-download{grid-column:span 2}
    }
    @media (max-width:520px){
      .hero h1{font-size:33px}
      .hero-actions .btn{width:100%}
      .section{padding:57px 0}
      .section-head{display:block}
      .section-head p{margin-top:13px}
      .topic-grid{grid-template-columns:1fr}
      .topic-card.large{grid-column:auto}
      .pulse-item{padding:20px 14px}
      .pulse b{font-size:21px}
      .footer-main{grid-template-columns:1fr}
      .footer-brand,.footer-download{grid-column:auto}
      .footer-bottom{display:block}
      .footer-tags{margin-top:10px}
    }

/* roulang page: category4 */
:root{
      --ink:#1d211f;--ink-soft:#444b46;--muted:#737a74;--paper:#fbfaf7;
      --sand:#f2efe8;--line:#e5e0d6;--orange:#ef5a36;--orange-dark:#cf3e20;
      --orange-pale:#fff0ea;--mint:#1d9f88;--mint-pale:#e6f6f1;
      --plum:#775b94;--plum-pale:#f0eafa;--charcoal:#202421;--charcoal-2:#2c322e;
      --white:#fff;--shadow:0 14px 38px rgba(31,37,33,.08);
      --shadow-hover:0 20px 44px rgba(31,37,33,.14);--radius:18px;--radius-sm:11px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
    button,input{font:inherit}button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(229,224,214,.9);background:rgba(251,250,247,.95);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0}
    .brand-mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-weight:900;font-size:23px;line-height:1;box-shadow:0 8px 18px rgba(239,90,54,.22)}
    .brand-mark:after{content:"";position:absolute;width:9px;height:9px;right:-3px;top:-3px;border-radius:50%;background:var(--mint);border:2px solid var(--paper)}
    .brand-copy{display:flex;flex-direction:column;line-height:1.16}.brand-copy strong{font-size:16px;white-space:nowrap}.brand-copy small{color:var(--muted);font-size:10px;letter-spacing:.08em;white-space:nowrap}
    .nav-links{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}
    .nav-links a{position:relative;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:700;transition:.2s ease}
    .nav-links a:hover{background:var(--orange-pale);color:var(--orange-dark)}
    .nav-links a.active{color:var(--ink)}.nav-links a.active:after{content:"";position:absolute;right:12px;bottom:2px;left:12px;height:3px;border-radius:4px;background:var(--orange)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:800;line-height:1;transition:.2s ease}
    .btn:hover{transform:translateY(-2px)}.btn:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible{outline:3px solid rgba(29,159,136,.42);outline-offset:3px}
    .btn-primary{background:var(--orange);color:#fff;box-shadow:0 9px 19px rgba(239,90,54,.2)}.btn-primary:hover{background:var(--orange-dark)}
    .btn-ghost{background:transparent;border-color:#d6d0c5;color:var(--ink)}.btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);background:var(--orange-pale)}
    .nav-cta{white-space:nowrap;min-height:40px;padding:0 15px;font-size:14px}.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
    .hero{padding:76px 0 82px;background:linear-gradient(116deg,#f4efe5 0%,#fbfaf7 56%,#ebf7f3 100%);position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;width:330px;height:330px;right:-130px;top:-130px;border:45px solid rgba(239,90,54,.12);border-radius:50%}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.kicker:before{content:"";width:26px;height:2px;background:currentColor}
    h1,h2,h3,p{margin-top:0}.hero h1{max-width:680px;margin:17px 0 0;font-size:clamp(40px,5vw,62px);line-height:1.16;letter-spacing:-.045em}.hero h1 em{font-style:normal;color:var(--orange)}
    .hero-copy{max-width:650px;margin:23px 0 0;color:var(--ink-soft);font-size:17px;line-height:1.9}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
    .hero-note{margin-top:25px;color:var(--muted);font-size:13px;font-weight:700}
    .guide-panel{padding:28px;border-radius:24px;background:var(--charcoal);color:#fff;box-shadow:0 24px 55px rgba(26,30,27,.2);position:relative;overflow:hidden}
    .guide-panel:before{content:"";position:absolute;right:-55px;bottom:-90px;width:240px;height:240px;border:30px solid rgba(29,159,136,.72);border-radius:50%}
    .guide-panel h2{position:relative;z-index:1;margin:42px 0 25px;font-size:31px;line-height:1.3}.panel-label{color:#ff9b84;font-size:12px;font-weight:800;letter-spacing:.12em}
    .panel-row{position:relative;z-index:1;display:flex;align-items:center;gap:13px;padding:14px 0;border-top:1px solid rgba(255,255,255,.14);font-size:14px}.panel-row b{margin-left:auto;color:#8ce4cc;font-size:12px}
    .section{padding:84px 0}.section-sand{background:var(--sand)}.section-dark{background:var(--charcoal);color:#fff}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}.section-head h2{max-width:700px;margin:10px 0 0;font-size:clamp(28px,3.3vw,38px);line-height:1.3;letter-spacing:-.03em}.section-head p{max-width:520px;margin:0;color:var(--muted)}
    .feature-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:18px}.feature-card,.info-card,.step-card,.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);padding:27px;transition:.25s ease}.feature-card:hover,.info-card:hover,.step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
    .feature-card.large{background:var(--charcoal);color:#fff;min-height:250px}.feature-card.large p{color:#c7cec8}.feature-card h3,.info-card h3,.step-card h3{font-size:20px;line-height:1.4;margin:18px 0 9px}.feature-card p,.info-card p,.step-card p{color:var(--muted);margin-bottom:0}
    .badge{display:inline-flex;padding:6px 10px;border-radius:7px;background:var(--orange-pale);color:var(--orange-dark);font-size:12px;font-weight:800}.badge.mint{background:var(--mint-pale);color:#117763}.badge.plum{background:var(--plum-pale);color:#63477e}
    .split{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}.split h2{font-size:36px;line-height:1.35;margin:12px 0 16px}.split-intro{color:var(--ink-soft);font-size:17px}
    .info-list{display:grid;grid-template-columns:1fr 1fr;gap:15px}.info-card{padding:23px}.info-card h3{font-size:18px;margin-top:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.step-card{position:relative;padding-top:24px}.step-num{font-size:34px;font-weight:900;color:var(--orange);line-height:1}.step-card h3{font-size:18px}
    .dark-head p{color:#b9c1ba}.tip-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}.tip-box{padding:28px;border-radius:var(--radius);background:var(--charcoal-2);border:1px solid rgba(255,255,255,.1)}.tip-box h3{margin:0 0 13px;font-size:21px}.tip-box p{color:#c4ccc5;margin:0}.tip-list{margin:0;padding:0;list-style:none}.tip-list li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);color:#dce3dc}.tip-list li:last-child{border-bottom:0}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.faq-item{padding:22px 25px}.faq-item h3{font-size:17px;margin:0 0 8px}.faq-item p{color:var(--muted);margin:0}
    .cta{padding:66px 0;background:var(--orange);color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{margin:0 0 9px;font-size:clamp(27px,3vw,38px);line-height:1.3}.cta p{margin:0;color:#ffe3dc}.cta .btn{background:#fff;color:var(--orange-dark)}.cta .btn:hover{background:#fff4ef}
    .site-footer{padding:58px 0 0;background:var(--charcoal);color:#fff}.footer-main{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:34px;padding-bottom:45px}.footer-logo{color:#fff}.footer-brand p{max-width:330px;margin:18px 0 0;color:#aeb7af;font-size:14px}.footer-title{font-size:15px;margin:3px 0 16px}.footer-links{display:grid;gap:9px}.footer-links a{color:#aeb7af;font-size:14px;transition:.2s}.footer-links a:hover{color:#ff9b84}.footer-download{padding:20px;border:1px solid rgba(255,255,255,.13);border-radius:14px;background:rgba(255,255,255,.04)}.footer-download strong{font-size:17px}.footer-download p{color:#aeb7af;font-size:13px;margin:7px 0 17px}.footer-download .btn{min-height:40px;font-size:13px}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);color:#89938b;font-size:12px}.footer-tags{display:flex;gap:8px}.footer-tags span{padding:4px 8px;border:1px solid rgba(255,255,255,.15);border-radius:5px}
    @media(max-width:1024px){.hero-grid{gap:35px}.feature-grid{grid-template-columns:1fr 1fr}.feature-card.large{grid-column:span 2}.footer-main{grid-template-columns:1.3fr 1fr 1fr}}
    @media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.nav-wrap{height:68px}.nav-cta{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;right:16px;left:16px;padding:10px;flex-direction:column;align-items:stretch;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-links a.active:after{right:12px;left:auto;width:24px}.hero{padding:55px 0 60px}.hero-grid,.split{grid-template-columns:1fr;gap:35px}.hero h1{font-size:40px}.hero-visual{max-width:560px}.section{padding:58px 0}.section-head,.cta-inner{display:block}.section-head p{margin-top:12px}.steps{grid-template-columns:1fr 1fr}.footer-main{grid-template-columns:1fr 1fr}.footer-download{grid-column:span 2}}
    @media(max-width:520px){.hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}.feature-grid,.info-list,.tip-layout,.faq-grid,.steps{grid-template-columns:1fr}.feature-card.large{grid-column:auto}.guide-panel h2{font-size:26px}.split h2{font-size:29px}.footer-main{grid-template-columns:1fr}.footer-download{grid-column:auto}.footer-bottom{display:block}.footer-tags{margin-top:12px}}