/* roulang page: index */
:root{
  --ink:#202827;
  --ink-soft:#40504d;
  --muted:#74817d;
  --paper:#f7f7f2;
  --cream:#eeefe8;
  --mint:#b9d6c8;
  --mint-deep:#47796b;
  --mint-pale:#e4f0e9;
  --amber:#d98b3d;
  --amber-light:#f5dfc5;
  --white:#fff;
  --line:#dfe4dc;
  --shadow:0 14px 38px rgba(28,45,40,.09);
  --radius:16px;
  --container:1220px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none;transition:.25s ease}
img{max-width:100%;display:block}
button{font:inherit;border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:78px;background:rgba(247,247,242,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:36px;height:36px;border:3px solid var(--mint-deep);border-radius:10px 10px 13px 13px;position:relative;display:grid;place-items:center;color:var(--mint-deep);font-weight:900}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;height:3px;background:var(--mint-deep);left:6px;right:6px}
.logo-mark:before{top:10px}.logo-mark:after{bottom:9px}
.logo-text{font-size:16px;line-height:1.2}.logo-text small{display:block;color:var(--mint-deep);font-size:10px;letter-spacing:.16em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:24px;flex:1}
.main-nav a{height:78px;display:flex;align-items:center;color:var(--ink-soft);font-size:14px;position:relative;white-space:nowrap}
.main-nav a:after{content:"";position:absolute;bottom:0;left:0;right:100%;height:3px;background:var(--mint-deep);transition:.25s}
.main-nav a:hover,.main-nav a.active{color:var(--mint-deep);font-weight:700}
.main-nav a:hover:after,.main-nav a.active:after{right:0}
.header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:700;transition:.25s ease}
.header-cta{background:var(--ink);color:#fff;padding:11px 18px;font-size:13px;white-space:nowrap}
.header-cta:hover,.btn-dark:hover{background:var(--mint-deep);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
.hero{padding:78px 0 68px;background:var(--cream);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:72px;align-items:center}
.eyebrow,.section-kicker{color:var(--mint-deep);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.hero h1{font-size:clamp(38px,5vw,66px);line-height:1.12;letter-spacing:-.05em;margin:17px 0 22px;max-width:680px}
.hero h1 span{color:var(--mint-deep)}
.hero-copy{font-size:17px;color:var(--ink-soft);max-width:590px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{min-height:46px;padding:0 21px}
.btn-primary{background:var(--amber);color:#fff}.btn-primary:hover{background:#bd6e27;transform:translateY(-2px)}
.btn-outline{border:1px solid #aebdb4;color:var(--ink);background:transparent}.btn-outline:hover{border-color:var(--mint-deep);color:var(--mint-deep)}
.hero-art{min-height:360px;position:relative;display:flex;align-items:center;justify-content:center}
.art-panel{width:min(100%,470px);background:var(--ink);border-radius:28px;padding:28px;color:#fff;box-shadow:var(--shadow);transform:rotate(2deg)}
.art-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.18);padding-bottom:20px}
.art-top strong{font-size:21px}.art-top em{font-style:normal;color:#eeb06e;font-size:12px}
.art-lines{padding:28px 0 16px;display:grid;gap:16px}
.art-line{display:flex;align-items:center;gap:13px}.art-line i{width:44px;height:44px;border-radius:12px;background:var(--mint);display:block}.art-line b{display:block;font-size:14px}.art-line small{color:#aab9b2;font-size:12px}
.art-line .bar{margin-left:auto;width:80px;height:7px;background:#53796d;border-radius:9px}
.art-note{background:var(--amber);padding:15px 17px;border-radius:12px;font-size:13px}
.section{padding:88px 0}.section.alt{background:var(--cream)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
.section-head h2{font-size:32px;line-height:1.25;letter-spacing:-.03em;margin-top:8px}
.section-head p{color:var(--muted);max-width:510px}
.text-link{color:var(--mint-deep);font-weight:700;white-space:nowrap}.text-link:hover{color:var(--amber)}
.quick-bar{background:var(--ink);color:#fff;padding:24px 0}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
.quick-item{padding:10px 25px;border-right:1px solid rgba(255,255,255,.16)}.quick-item:last-child{border:0}
.quick-item b{display:block;color:var(--mint);font-size:17px}.quick-item span{display:block;color:#adbab5;font-size:12px;margin-top:3px}
.timeline{border-top:1px solid var(--line)}
.timeline-item{display:grid;grid-template-columns:145px 125px 1fr 20px;gap:20px;align-items:center;padding:21px 8px;border-bottom:1px solid var(--line)}
.timeline-item:hover{background:#eef3ee}.date{font-size:13px;color:var(--amber);font-weight:800}.tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--mint-pale);color:var(--mint-deep);font-size:11px;font-weight:700;width:max-content}.timeline-item h3{font-size:17px;margin-bottom:3px}.timeline-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.arrow{font-size:21px;color:var(--mint-deep)}
.focus-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:18px}.focus-main,.focus-small{border-radius:var(--radius);padding:32px;min-height:220px;position:relative;overflow:hidden}
.focus-main{background:var(--mint-deep);color:#fff}.focus-main p,.focus-small p{margin:12px 0 20px;color:inherit;opacity:.78;font-size:14px}.focus-main h3{font-size:28px;max-width:500px}.focus-small{background:var(--white);border:1px solid var(--line);margin-bottom:18px;min-height:0;padding:23px}.focus-small:last-child{margin-bottom:0}.focus-small h3{font-size:18px}
.download{background:var(--mint-pale);border-radius:22px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.download h2{font-size:34px;line-height:1.25;margin:10px 0 14px}.download p{color:var(--ink-soft);max-width:500px}.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.meta-chip{border:1px solid #bdd2c6;border-radius:8px;padding:7px 11px;font-size:12px;color:var(--mint-deep);background:rgba(255,255,255,.45)}
.phone-row{display:flex;justify-content:center;gap:14px;align-items:end}.phone{width:145px;height:270px;border:7px solid var(--ink);border-radius:22px;background:#fff;padding:20px 10px 10px;box-shadow:0 8px 18px rgba(30,50,44,.12)}.phone:nth-child(2){height:305px;background:var(--ink);color:#fff}.phone-head{font-size:12px;font-weight:800;border-bottom:1px solid var(--line);padding-bottom:10px}.phone:nth-child(2) .phone-head{border-color:#42524e}.phone-block{height:42px;background:var(--mint-pale);border-radius:8px;margin-top:13px}.phone:nth-child(2) .phone-block{background:#405c54}.phone-block.short{width:65%;height:9px;margin-top:10px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-left:1px solid var(--line)}.step{padding:10px 25px 10px 27px;border-right:1px solid var(--line);position:relative}.step-number{color:var(--amber);font-size:28px;font-weight:800}.step h3{font-size:17px;margin:8px 0 5px}.step p{font-size:13px;color:var(--muted)}
.topic-layout{display:grid;grid-template-columns:1.35fr .8fr;gap:20px}.topic-feature{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;min-height:250px}.topic-feature h3{font-size:27px;margin:13px 0}.topic-feature p{color:#c0cbc6}.topic-list{display:grid;gap:12px}.topic-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:19px}.topic-card h3{font-size:16px;margin:8px 0 4px}.topic-card p{color:var(--muted);font-size:13px}
.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.activity{background:#fff;border:1px solid var(--line);padding:23px;border-radius:14px}.activity .status{color:var(--amber);font-size:12px;font-weight:800}.activity h3{margin:10px 0 7px;font-size:18px}.activity p{font-size:13px;color:var(--muted)}
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.entry{background:var(--cream);padding:22px;border-radius:12px;border-left:3px solid var(--mint-deep)}.entry strong{font-size:17px;display:block;margin-bottom:6px}.entry span{font-size:13px;color:var(--muted)}
.security-panel{display:grid;grid-template-columns:1fr 1.6fr;gap:35px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px}.security-panel h2{font-size:27px}.security-panel p{color:var(--muted);margin-top:8px}.security-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.security-list div{padding:15px;background:var(--mint-pale);border-radius:10px}.security-list b{display:block;font-size:15px}.security-list span{font-size:12px;color:var(--ink-soft)}
.version-list{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.version{background:#fff;border:1px solid var(--line);padding:20px;border-radius:12px}.version strong{color:var(--mint-deep);font-size:19px}.version time{float:right;color:var(--muted);font-size:12px}.version p{clear:both;color:var(--muted);font-size:13px;margin-top:12px}
.news-list{display:grid;gap:10px}.news-item{display:grid;grid-template-columns:105px 95px 1fr 22px;align-items:center;gap:18px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:11px}.news-item:hover{border-color:var(--mint-deep);transform:translateX(3px)}.news-item time{font-weight:800;color:var(--amber);font-size:13px}.news-item h3{font-size:16px}.news-item p{font-size:13px;color:var(--muted);margin-top:3px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq details{background:#fff;border:1px solid var(--line);border-radius:11px;padding:17px 20px}.faq summary{cursor:pointer;font-weight:700;list-style:none;padding-right:22px;position:relative}.faq summary:after{content:"+";position:absolute;right:0;color:var(--mint-deep);font-size:20px;top:-4px}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);font-size:13px;padding-top:10px}
.rational{background:#e8ede7;padding:27px 32px;border-left:5px solid var(--amber);border-radius:12px;display:flex;justify-content:space-between;gap:30px;align-items:center}.rational h2{font-size:22px}.rational p{color:var(--ink-soft);font-size:13px;margin-top:4px}
.final-cta{background:var(--ink);color:#fff;padding:62px 0}.final-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.final-cta h2{font-size:34px;line-height:1.25}.final-cta p{color:#b7c2bd;margin-top:8px}
.site-footer{background:#171e1d;color:#dfe8e1;padding:52px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid #35403c}.footer-brand p{color:#9eada6;font-size:13px;margin-top:15px;max-width:310px}.footer-title{font-weight:800;margin-bottom:13px;color:#fff}.footer-links{display:grid;gap:8px}.footer-links a{color:#aab8b1;font-size:13px}.footer-links a:hover{color:var(--mint)}.copyright{display:flex;justify-content:space-between;color:#84928b;font-size:12px;padding-top:20px;gap:15px}.notice{margin-top:10px}
@media(max-width:1024px){.header-inner{gap:18px}.logo{min-width:210px}.main-nav{gap:14px}.hero-grid{gap:35px}.entry-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.site-header{height:68px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:10px 20px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{height:46px}.header-cta{margin-left:auto;padding:9px 12px}.menu-toggle{display:block}.hero{padding:55px 0}.hero-grid,.download,.topic-layout,.security-panel{grid-template-columns:1fr}.hero-art{min-height:290px}.section{padding:62px 0}.section-head{display:block}.section-head h2{font-size:27px;margin-bottom:8px}.section-head .text-link{display:inline-block;margin-top:15px}.quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item{padding:10px 15px}.quick-item:nth-child(2){border-right:0}.quick-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.16)}.focus-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr);border:0;gap:1px}.step{border:1px solid var(--line)}.activity-grid,.version-list{grid-template-columns:1fr}.news-item{grid-template-columns:85px 80px 1fr 15px;gap:10px}.faq-grid{grid-template-columns:1fr}.final-inner,.rational{display:block}.final-inner .actions{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body{font-size:14px}.logo{min-width:0}.logo-text{font-size:14px}.logo-text small{font-size:9px}.header-cta{display:none}.hero h1{font-size:39px}.hero-copy{font-size:15px}.art-panel{padding:21px}.phone{width:118px;height:225px}.phone:nth-child(2){height:255px}.download{padding:28px 20px}.download h2{font-size:28px}.quick-grid{grid-template-columns:1fr}.quick-item{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.16)!important}.quick-item:last-child{border-bottom:0!important}.timeline-item{grid-template-columns:1fr 1fr 16px;gap:8px}.timeline-item .timeline-copy{grid-column:1/4}.timeline-item p{white-space:normal}.steps{grid-template-columns:1fr}.security-list{grid-template-columns:1fr}.news-item{grid-template-columns:1fr 15px}.news-item .tag{order:2}.news-item time{order:1}.news-item .news-copy{grid-column:1/3;order:3}.news-item .arrow{grid-column:2;grid-row:1/3}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: category1 */
:root{
      --ink:#202827;
      --ink-soft:#40504d;
      --muted:#74817d;
      --paper:#f7f7f2;
      --cream:#eeefe8;
      --mint:#b9d6c8;
      --mint-deep:#47796b;
      --mint-pale:#e4f0e9;
      --amber:#d98b3d;
      --amber-light:#f5dfc5;
      --white:#fff;
      --line:#dfe4dc;
      --shadow:0 14px 38px rgba(28,45,40,.09);
      --radius:16px;
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    :focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(247,247,242,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:800;letter-spacing:.02em}
    .logo-mark{width:36px;height:36px;border:3px solid var(--mint-deep);border-radius:10px 10px 13px 13px;position:relative;display:grid;place-items:center;color:var(--mint-deep);font-weight:900}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;height:3px;background:var(--mint-deep);left:6px;right:6px}
    .logo-mark:before{top:10px}.logo-mark:after{bottom:9px}
    .logo-text{font-size:16px;line-height:1.2}
    .logo-text small{display:block;color:var(--mint-deep);font-size:10px;letter-spacing:.16em;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:24px;flex:1}
    .main-nav a{height:78px;display:flex;align-items:center;color:var(--ink-soft);font-size:14px;position:relative;white-space:nowrap}
    .main-nav a:after{content:"";position:absolute;bottom:0;left:0;right:100%;height:3px;background:var(--mint-deep);transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:var(--mint-deep);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:700;transition:.25s ease}
    .header-cta{background:var(--ink);color:#fff;padding:11px 18px;font-size:13px;white-space:nowrap}
    .header-cta:hover{background:var(--mint-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .page-intro{padding:72px 0 64px;background:var(--cream);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:26px}
    .breadcrumb a:hover{color:var(--mint-deep)}
    .breadcrumb span{color:#a6b1ac}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:end}
    .eyebrow,.section-kicker{color:var(--mint-deep);font-size:12px;font-weight:800;letter-spacing:.16em}
    h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-.05em;margin:15px 0 20px}
    .intro-copy{font-size:17px;color:var(--ink-soft);max-width:650px;margin:0}
    .intro-note{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
    .intro-note strong{display:block;font-size:22px;margin-bottom:7px}
    .intro-note p{color:var(--muted);font-size:13px;margin:0}
    .section{padding:82px 0}
    .section.alt{background:var(--cream)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section-head h2{font-size:31px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:520px;margin:0}
    .text-link{color:var(--mint-deep);font-weight:700;white-space:nowrap}
    .text-link:hover{color:var(--amber)}
    .news-list{display:grid;gap:12px}
    .news-item{display:grid;grid-template-columns:112px 125px 1fr 26px;align-items:center;gap:20px;padding:21px 24px;background:var(--white);border:1px solid var(--line);border-radius:12px}
    .news-item:hover{border-color:var(--mint-deep);transform:translateX(4px);box-shadow:0 8px 22px rgba(28,45,40,.06)}
    .news-item time{font-weight:800;color:var(--amber);font-size:13px}
    .news-item h3{font-size:17px;margin:0 0 3px}
    .news-item p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .tag{display:inline-flex;width:max-content;padding:4px 9px;border-radius:6px;background:var(--mint-pale);color:var(--mint-deep);font-size:11px;font-weight:700}
    .arrow{font-size:22px;color:var(--mint-deep)}
    .empty-state{padding:38px;text-align:center;background:var(--white);border:1px dashed #b9c8c0;border-radius:12px;color:var(--muted)}
    .feature-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
    .feature-card{border-radius:var(--radius);padding:34px;min-height:250px;position:relative;overflow:hidden}
    .feature-card.primary{background:var(--mint-deep);color:#fff}
    .feature-card.secondary{background:var(--ink);color:#fff}
    .feature-card h3{font-size:27px;line-height:1.3;margin:12px 0}
    .feature-card p{color:inherit;opacity:.78;font-size:14px;max-width:560px}
    .feature-meta{display:flex;gap:9px;flex-wrap:wrap;margin-top:23px}
    .meta-chip{border:1px solid rgba(255,255,255,.3);border-radius:8px;padding:6px 10px;font-size:12px;color:#fff}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{background:var(--white);border:1px solid var(--line);border-radius:13px;padding:23px}
    .topic-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .topic-card h3{font-size:18px;margin:13px 0 7px}
    .topic-card p{color:var(--muted);font-size:13px;margin:0}
    .topic-number{font-size:28px;color:var(--amber);font-weight:800;line-height:1}
    .month-layout{display:grid;grid-template-columns:220px 1fr;gap:38px}
    .month-label{border-left:4px solid var(--amber);padding:8px 0 8px 18px;height:max-content}
    .month-label strong{font-size:25px;display:block}
    .month-label span{font-size:13px;color:var(--muted)}
    .month-points{display:grid;gap:17px}
    .month-point{display:flex;gap:16px;align-items:flex-start;padding-bottom:17px;border-bottom:1px solid var(--line)}
    .month-point:last-child{border-bottom:0}
    .point-dot{width:10px;height:10px;border-radius:50%;background:var(--mint-deep);margin-top:9px;flex:0 0 auto}
    .month-point strong{font-size:16px;display:block}
    .month-point span{font-size:13px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px 22px}
    .faq-item summary{cursor:pointer;font-weight:700;list-style:none;position:relative;padding-right:25px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";position:absolute;right:0;color:var(--mint-deep);font-size:20px;line-height:1}
    .faq-item[open] summary:after{content:"－"}
    .faq-item p{color:var(--muted);font-size:13px;margin:14px 0 0;padding-top:13px;border-top:1px solid var(--line)}
    .return-bar{background:var(--ink);color:#fff;border-radius:var(--radius);padding:29px 32px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .return-bar h2{font-size:23px;margin:0 0 5px}
    .return-bar p{margin:0;color:#bcc8c3;font-size:13px}
    .btn{min-height:46px;padding:0 21px}
    .btn-primary{background:var(--amber);color:#fff}
    .btn-primary:hover{background:#bd6e27;color:#fff;transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--ink)}
    .btn-light:hover{background:var(--mint);color:var(--ink)}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:38px;padding-bottom:42px}
    .footer-brand p{color:#aebbb6;max-width:310px;font-size:13px;margin:16px 0 0}
    .site-footer .logo{color:#fff}
    .site-footer .logo-mark{color:var(--mint);border-color:var(--mint)}
    .site-footer .logo-mark:before,.site-footer .logo-mark:after{background:var(--mint)}
    .site-footer .logo-text small{color:var(--mint)}
    .footer-title{font-weight:700;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#aebbb6;font-size:13px}
    .footer-links a:hover{color:var(--mint)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#91a19a;font-size:12px}
    @media (max-width:1024px){
      .header-inner{gap:18px}.logo{min-width:205px}.main-nav{gap:13px}.main-nav a{font-size:13px}
      .intro-grid{gap:35px}.feature-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:70px}.header-inner{justify-content:space-between}
      .logo{min-width:0}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
      .main-nav.open{display:flex}.main-nav a{height:auto;padding:13px 14px;border-radius:8px}.main-nav a:after{display:none}.main-nav a.active,.main-nav a:hover{background:var(--mint-pale)}
      .header-cta{display:none}.menu-toggle{display:block}
      .page-intro{padding:49px 0 45px}.intro-grid{grid-template-columns:1fr;gap:25px}
      .section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:12px}.section-head .text-link{display:inline-block;margin-top:14px}
      .news-item{grid-template-columns:85px 1fr 20px;gap:12px;padding:17px}.news-item .tag{grid-column:1}.news-item h3{grid-column:2;grid-row:1 / span 2}.news-item p{grid-column:2;grid-row:3}.news-item .arrow{grid-column:3;grid-row:1 / span 3}
      .feature-grid,.topic-grid,.faq-grid{grid-template-columns:1fr}.month-layout{grid-template-columns:1fr;gap:24px}
      .return-bar{display:block}.return-bar .btn{margin-top:19px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media (max-width:480px){
      h1{font-size:39px}.intro-copy{font-size:15px}.news-item{grid-template-columns:1fr 20px}.news-item time,.news-item .tag{grid-column:1}.news-item h3,.news-item p{grid-column:1;grid-row:auto}.news-item .arrow{grid-column:2;grid-row:1 / span 4;align-self:center}
      .footer-grid{grid-template-columns:1fr}.feature-card{padding:25px}.feature-card h3{font-size:23px}
    }

/* roulang page: article */
:root{
      --ink:#202827;
      --ink-soft:#40504d;
      --muted:#74817d;
      --paper:#f7f7f2;
      --cream:#eeefe8;
      --mint:#b9d6c8;
      --mint-deep:#47796b;
      --mint-pale:#e4f0e9;
      --amber:#d98b3d;
      --amber-light:#f5dfc5;
      --white:#fff;
      --line:#dfe4dc;
      --shadow:0 14px 38px rgba(28,45,40,.09);
      --radius:16px;
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;
      font-size:15px;
      line-height:1.75;
    }
    a{color:inherit;text-decoration:none;transition:.25s ease}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(71,121,107,.35);outline-offset:3px}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;
      background:rgba(247,247,242,.96);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(10px);
    }
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:800;letter-spacing:.02em}
    .logo-mark{
      width:36px;height:36px;border:3px solid var(--mint-deep);
      border-radius:10px 10px 13px 13px;position:relative;
      display:grid;place-items:center;color:var(--mint-deep);font-weight:900;
    }
    .logo-mark:before,.logo-mark:after{
      content:"";position:absolute;height:3px;background:var(--mint-deep);left:6px;right:6px
    }
    .logo-mark:before{top:10px}.logo-mark:after{bottom:9px}
    .logo-text{font-size:16px;line-height:1.2}
    .logo-text small{display:block;color:var(--mint-deep);font-size:10px;letter-spacing:.16em;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:24px;flex:1}
    .main-nav a{
      height:78px;display:flex;align-items:center;color:var(--ink-soft);
      font-size:14px;position:relative;white-space:nowrap
    }
    .main-nav a:after{
      content:"";position:absolute;bottom:0;left:0;right:100%;height:3px;
      background:var(--mint-deep);transition:.25s
    }
    .main-nav a:hover,.main-nav a.active{color:var(--mint-deep);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:10px;font-weight:700;transition:.25s ease
    }
    .header-cta{background:var(--ink);color:#fff;padding:11px 18px;font-size:13px;white-space:nowrap}
    .header-cta:hover,.btn-dark:hover{background:var(--mint-deep);transform:translateY(-2px);color:#fff}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .article-hero{background:var(--cream);padding:40px 0 54px;border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:30px;flex-wrap:wrap}
    .breadcrumb a:hover{color:var(--mint-deep)}
    .breadcrumb .current{color:var(--ink-soft);max-width:580px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .crumb-sep{color:#aeb8b2}
    .article-heading{max-width:900px}
    .eyebrow,.section-kicker{
      color:var(--mint-deep);font-size:12px;font-weight:800;
      letter-spacing:.16em;text-transform:uppercase
    }
    .article-heading h1{
      font-size:clamp(34px,5vw,60px);
      line-height:1.18;letter-spacing:-.045em;margin:15px 0 20px;
      max-width:900px
    }
    .article-lead{max-width:760px;font-size:17px;color:var(--ink-soft);margin:0}
    .article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:13px}
    .tag{
      display:inline-flex;padding:4px 10px;border-radius:6px;
      background:var(--mint-pale);color:var(--mint-deep);font-size:11px;font-weight:700
    }
    .article-layout{
      display:grid;grid-template-columns:minmax(0,820px) 285px;
      gap:74px;align-items:start;padding:68px 0 88px
    }
    .article-content{
      min-width:0;background:var(--white);border:1px solid var(--line);
      border-radius:var(--radius);padding:clamp(26px,5vw,56px);
      box-shadow:0 8px 25px rgba(28,45,40,.045)
    }
    .article-summary{
      padding:20px 22px;background:var(--mint-pale);
      border-left:4px solid var(--mint-deep);border-radius:10px;
      color:var(--ink-soft);margin-bottom:34px
    }
    .article-summary strong{display:block;color:var(--mint-deep);margin-bottom:4px}
    .article-body{font-size:16px;color:var(--ink-soft);line-height:1.95}
    .article-body h2,.article-body h3{
      color:var(--ink);line-height:1.35;letter-spacing:-.02em
    }
    .article-body h2{font-size:27px;margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--amber)}
    .article-body h3{font-size:21px;margin:30px 0 12px}
    .article-body p{margin:0 0 20px}
    .article-body ul,.article-body ol{padding-left:25px;margin:18px 0 24px}
    .article-body li{margin:8px 0}
    .article-body blockquote{
      margin:28px 0;padding:20px 23px;background:var(--cream);
      border-radius:10px;color:var(--ink);font-weight:600
    }
    .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
    .article-body th,.article-body td{padding:12px;border:1px solid var(--line);text-align:left}
    .article-body th{background:var(--mint-pale);color:var(--ink)}
    .article-body a{color:var(--mint-deep);font-weight:700;border-bottom:1px solid rgba(71,121,107,.25)}
    .article-body a:hover{color:var(--amber)}
    .article-sidebar{position:sticky;top:105px}
    .side-card{
      background:var(--ink);color:#fff;border-radius:var(--radius);
      padding:25px 23px;margin-bottom:16px
    }
    .side-card h2{font-size:19px;margin:0 0 12px}
    .side-card p{color:#c2cfca;font-size:13px;margin:0 0 20px}
    .side-card .btn{width:100%}
    .btn{min-height:46px;padding:0 21px}
    .btn-primary{background:var(--amber);color:#fff}
    .btn-primary:hover{background:#bd6e27;transform:translateY(-2px);color:#fff}
    .btn-outline{border:1px solid #aebdb4;color:var(--ink);background:transparent}
    .btn-outline:hover{border-color:var(--mint-deep);color:var(--mint-deep)}
    .side-index{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      padding:22px
    }
    .side-index h3{font-size:16px;margin:0 0 13px}
    .side-index a{
      display:block;padding:9px 0;border-bottom:1px solid var(--line);
      color:var(--ink-soft);font-size:13px
    }
    .side-index a:last-child{border-bottom:0}
    .side-index a:hover{color:var(--mint-deep);padding-left:4px}
    .article-foot{
      margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
      display:flex;justify-content:space-between;gap:20px;align-items:center;
      flex-wrap:wrap;color:var(--muted);font-size:13px
    }
    .article-tags{display:flex;gap:8px;flex-wrap:wrap}
    .reading-panel{background:var(--cream);padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
    .section-head h2{font-size:31px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:510px;margin:0}
    .reading-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .reading-card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      padding:28px;min-height:170px
    }
    .reading-card.dark{background:var(--mint-deep);color:#fff;border-color:var(--mint-deep)}
    .reading-card h3{font-size:20px;margin:0 0 10px}
    .reading-card p{font-size:14px;color:var(--muted);margin:0 0 17px}
    .reading-card.dark p{color:#dceae3}
    .reading-card .text-link{color:var(--mint-deep);font-weight:700}
    .reading-card.dark .text-link{color:#fff}
    .notice-strip{padding:42px 0;background:var(--paper)}
    .notice-inner{
      display:flex;align-items:center;justify-content:space-between;gap:25px;
      background:var(--mint-pale);border:1px solid #cfe1d6;border-radius:var(--radius);
      padding:25px 30px
    }
    .notice-inner h2{font-size:20px;margin:0 0 4px}
    .notice-inner p{margin:0;color:var(--ink-soft);font-size:14px}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#adbab5;font-size:13px;max-width:310px;margin-top:18px}
    .footer-title{font-weight:700;margin-bottom:15px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#adbab5;font-size:13px}
    .footer-links a:hover{color:var(--mint)}
    .site-footer .logo{min-width:0;color:#fff}
    .site-footer .logo-text{color:#fff}
    .copyright{
      border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;
      display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
      color:#8d9b96;font-size:12px
    }
    @media(max-width:1100px){
      .header-inner{gap:18px}
      .logo{min-width:210px}
      .main-nav{gap:15px}
      .main-nav a{font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:35px}
    }
    @media(max-width:900px){
      .site-header{height:70px}
      .main-nav{
        display:none;position:absolute;top:70px;left:0;right:0;
        background:var(--paper);border-bottom:1px solid var(--line);
        padding:10px 24px 18px;flex-direction:column;align-items:stretch;gap:0
      }
      .main-nav.is-open{display:flex}
      .main-nav a{height:48px;border-bottom:1px solid var(--line)}
      .main-nav a:after{bottom:-1px}
      .menu-toggle{display:block;margin-left:auto}
      .header-cta{display:none}
      .article-layout{grid-template-columns:1fr}
      .article-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}
      .side-card,.side-index{margin:0}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media(max-width:640px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .article-hero{padding:28px 0 40px}
      .article-heading h1{font-size:36px}
      .article-lead{font-size:15px}
      .article-layout{padding:42px 0 55px}
      .article-content{padding:24px 19px}
      .article-body{font-size:15px;line-height:1.85}
      .article-body h2{font-size:24px}
      .article-sidebar{grid-template-columns:1fr}
      .reading-panel{padding:55px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .reading-grid{grid-template-columns:1fr}
      .notice-inner{display:block;padding:22px}
      .notice-inner .btn{margin-top:18px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-grid>div:last-child{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:6px}
    }
    @media(max-width:420px){
      .logo-text{font-size:14px}
      .logo{min-width:0}
      .logo-mark{width:33px;height:33px}
      .article-heading h1{font-size:31px}
      .article-meta{gap:10px}
    }

/* roulang page: category3 */
:root{
      --ink:#202827;--ink-soft:#40504d;--muted:#74817d;--paper:#f7f7f2;
      --cream:#eeefe8;--mint:#b9d6c8;--mint-deep:#47796b;--mint-pale:#e4f0e9;
      --amber:#d98b3d;--amber-light:#f5dfc5;--white:#fff;--line:#dfe4dc;
      --shadow:0 14px 38px rgba(28,45,40,.09);--radius:16px;--container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(247,247,242,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:800;letter-spacing:.02em}
    .logo-mark{width:36px;height:36px;border:3px solid var(--mint-deep);border-radius:10px 10px 13px 13px;position:relative;display:grid;place-items:center;color:var(--mint-deep);font-weight:900}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;height:3px;background:var(--mint-deep);left:6px;right:6px}
    .logo-mark:before{top:10px}.logo-mark:after{bottom:9px}
    .logo-text{font-size:16px;line-height:1.2}.logo-text small{display:block;color:var(--mint-deep);font-size:10px;letter-spacing:.16em;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:24px;flex:1}
    .main-nav a{height:78px;display:flex;align-items:center;color:var(--ink-soft);font-size:14px;position:relative;white-space:nowrap}
    .main-nav a:after{content:"";position:absolute;bottom:0;left:0;right:100%;height:3px;background:var(--mint-deep);transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:var(--mint-deep);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:700;transition:.25s ease}
    .header-cta{background:var(--ink);color:#fff;padding:11px 18px;font-size:13px;white-space:nowrap}
    .header-cta:hover,.btn-dark:hover{background:var(--mint-deep);color:#fff;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .page-intro{padding:52px 0 45px;background:var(--cream);border-bottom:1px solid var(--line)}
    .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:30px}
    .breadcrumb a:hover{color:var(--mint-deep)}
    .breadcrumb span{padding:0 9px;color:#a7b2ad}
    .intro-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:60px;align-items:end}
    .eyebrow,.section-kicker{color:var(--mint-deep);font-size:12px;font-weight:800;letter-spacing:.16em}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.14;letter-spacing:-.05em;margin:15px 0 18px}
    .intro-copy{font-size:17px;color:var(--ink-soft);max-width:680px;margin:0}
    .intro-note{border-left:4px solid var(--amber);padding:5px 0 5px 22px;color:var(--ink-soft)}
    .intro-note strong{display:block;color:var(--ink);font-size:22px;margin-bottom:5px}
    .section{padding:78px 0}.section.alt{background:var(--cream)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
    .section-head h2{font-size:30px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:520px;margin:0}
    .topic-index{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .index-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;min-height:150px;position:relative}
    .index-card:hover{border-color:var(--mint-deep);box-shadow:var(--shadow);transform:translateY(-3px)}
    .index-no{font-size:12px;color:var(--amber);font-weight:800;letter-spacing:.1em}
    .index-card h3{font-size:18px;margin:18px 0 5px}.index-card p{font-size:13px;color:var(--muted);margin:0}
    .content-layout{display:grid;grid-template-columns:1.55fr .85fr;gap:28px;align-items:start}
    .topic-list{display:grid;gap:12px}
    .topic-item{display:grid;grid-template-columns:92px 1fr 25px;gap:22px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:13px;padding:22px 24px}
    .topic-item:hover{border-color:var(--mint-deep);transform:translateX(4px);box-shadow:0 8px 22px rgba(28,45,40,.06)}
    .topic-date{color:var(--amber);font-weight:800;font-size:13px}
    .topic-item h3{font-size:17px;margin:0 0 4px}.topic-item p{font-size:13px;color:var(--muted);margin:0}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--mint-pale);color:var(--mint-deep);font-size:11px;font-weight:700;width:max-content;margin-bottom:8px}
    .arrow{font-size:22px;color:var(--mint-deep)}
    .side-panel{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px;position:sticky;top:105px}
    .side-panel .tag{background:rgba(185,214,200,.18);color:var(--mint)}
    .side-panel h3{font-size:24px;line-height:1.35;margin:10px 0 13px}.side-panel p{color:#c4d0ca;font-size:14px;margin:0 0 22px}
    .side-meta{display:flex;gap:9px;flex-wrap:wrap;color:var(--mint);font-size:12px;border-top:1px solid rgba(255,255,255,.15);padding-top:17px}
    .timeline{position:relative;display:grid;gap:0;max-width:820px;margin:0 auto}
    .timeline:before{content:"";position:absolute;left:104px;top:10px;bottom:10px;width:1px;background:#c9d8d0}
    .timeline-row{display:grid;grid-template-columns:105px 1fr;gap:28px;position:relative;padding:12px 0 25px}
    .timeline-row time{color:var(--amber);font-size:13px;font-weight:800}
    .timeline-row div{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:17px 20px}
    .timeline-row div:before{content:"";position:absolute;left:99px;top:22px;width:11px;height:11px;border-radius:50%;background:var(--mint-deep);border:3px solid var(--paper)}
    .timeline-row h3{font-size:16px;margin:0 0 3px}.timeline-row p{color:var(--muted);font-size:13px;margin:0}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .guide-card{padding:25px;background:var(--mint-pale);border-radius:14px;border:1px solid #cfe1d7}
    .guide-card b{display:flex;align-items:center;gap:10px;font-size:16px}.guide-card b span{color:var(--amber);font-size:13px}
    .guide-card p{font-size:13px;color:var(--ink-soft);margin:10px 0 0}
    .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    details{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:0 20px}
    summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:700;position:relative;padding-right:25px}
    summary::-webkit-details-marker{display:none}summary:after{content:"＋";position:absolute;right:0;color:var(--mint-deep);font-size:20px}
    details[open] summary:after{content:"−"}details p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .cta-band{background:var(--ink);color:#fff;padding:42px 50px;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-band h2{font-size:29px;margin:0 0 7px}.cta-band p{color:#c6d0cc;margin:0}
    .btn{min-height:46px;padding:0 21px}.btn-primary{background:var(--amber);color:#fff}.btn-primary:hover{background:#bd6e27;color:#fff;transform:translateY(-2px)}
    .btn-outline{border:1px solid #aebdb4;color:var(--ink);background:transparent}.btn-outline:hover{border-color:var(--mint-deep);color:var(--mint-deep)}
    .empty-state{padding:40px;text-align:center;background:var(--white);border:1px dashed #b7c8be;border-radius:14px;color:var(--muted)}
    .site-footer{background:#18201f;color:#dce5df;padding:56px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#aebbb5;font-size:13px;max-width:310px;margin-top:17px}.footer-title{font-weight:800;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:9px}.footer-links a{color:#aebbb5;font-size:13px}.footer-links a:hover{color:var(--mint)}
    .site-footer .logo{color:#fff}.site-footer .logo-text small{color:var(--mint)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#8e9b95;font-size:12px}
    @media(max-width:1024px){.main-nav{gap:14px}.main-nav a{font-size:13px}.logo{min-width:205px}.intro-grid{gap:35px}.topic-index{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header{height:68px}.header-inner{gap:12px}.logo{min-width:0;flex:1}.main-nav{display:none;position:absolute;left:16px;right:16px;top:75px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:8px;flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{height:48px;padding:0 14px}.header-cta{display:none}.menu-toggle{display:block}.page-intro{padding:35px 0}.intro-grid,.content-layout{grid-template-columns:1fr}.side-panel{position:static}.section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}.guide-grid,.faq-grid{grid-template-columns:1fr}.cta-band{display:block;padding:32px 25px}.cta-band .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
    @media(max-width:520px){h1{font-size:38px}.topic-index{grid-template-columns:1fr}.topic-item{grid-template-columns:1fr 20px;gap:5px 10px;padding:18px}.topic-date{grid-column:1/-1}.topic-item p{white-space:normal}.timeline:before{left:7px}.timeline-row{grid-template-columns:1fr;gap:7px;padding-left:28px}.timeline-row div:before{left:2px;top:49px}.footer-grid{grid-template-columns:1fr}.copyright{margin-top:30px}.logo-text{font-size:14px}}

/* roulang page: category2 */
:root{
      --ink:#202827;
      --ink-soft:#40504d;
      --muted:#74817d;
      --paper:#f7f7f2;
      --cream:#eeefe8;
      --mint:#b9d6c8;
      --mint-deep:#47796b;
      --mint-pale:#e4f0e9;
      --amber:#d98b3d;
      --amber-light:#f5dfc5;
      --white:#fff;
      --line:#dfe4dc;
      --shadow:0 14px 38px rgba(28,45,40,.09);
      --radius:16px;
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(247,247,242,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:800;letter-spacing:.02em}
    .logo-mark{width:36px;height:36px;border:3px solid var(--mint-deep);border-radius:10px 10px 13px 13px;position:relative;display:grid;place-items:center;color:var(--mint-deep);font-weight:900}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;height:3px;background:var(--mint-deep);left:6px;right:6px}
    .logo-mark:before{top:10px}.logo-mark:after{bottom:9px}
    .logo-text{font-size:16px;line-height:1.2}.logo-text small{display:block;color:var(--mint-deep);font-size:10px;letter-spacing:.16em;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:24px;flex:1}
    .main-nav a{height:78px;display:flex;align-items:center;color:var(--ink-soft);font-size:14px;position:relative;white-space:nowrap}
    .main-nav a:after{content:"";position:absolute;bottom:0;left:0;right:100%;height:3px;background:var(--mint-deep);transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:var(--mint-deep);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:700;transition:.25s ease}
    .header-cta{background:var(--ink);color:#fff;padding:11px 18px;font-size:13px;white-space:nowrap}
    .header-cta:hover,.btn-dark:hover{background:var(--mint-deep);transform:translateY(-2px);color:#fff}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .page-hero{padding:58px 0 54px;background:var(--cream);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--mint-deep)}
    .breadcrumb span{color:#a3ada8}
    .page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
    .eyebrow,.section-kicker{color:var(--mint-deep);font-size:12px;font-weight:800;letter-spacing:.16em}
    h1{font-size:clamp(36px,5vw,60px);line-height:1.15;letter-spacing:-.05em;margin:14px 0 18px}
    h1 em{font-style:normal;color:var(--mint-deep)}
    .lead{font-size:17px;color:var(--ink-soft);max-width:680px;margin:0}
    .hero-note{background:var(--ink);color:#fff;border-radius:24px;padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-note:after{content:"WEN DING";position:absolute;right:-16px;bottom:8px;color:rgba(185,214,200,.12);font-size:42px;font-weight:900;letter-spacing:.08em}
    .hero-note strong{font-size:21px;display:block;margin-bottom:15px}
    .hero-note p{color:#cad5d0;margin:0;font-size:14px;max-width:320px}
    .hero-note .mini-line{height:1px;background:rgba(255,255,255,.18);margin:22px 0}
    .hero-note small{color:var(--mint);font-weight:700}
    .section{padding:78px 0}.section.alt{background:var(--cream)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section-head h2{font-size:30px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:530px;margin:0}
    .btn{min-height:46px;padding:0 21px}.btn-primary{background:var(--amber);color:#fff}.btn-primary:hover{background:#bd6e27;color:#fff;transform:translateY(-2px)}
    .btn-outline{border:1px solid #aebdb4;color:var(--ink);background:transparent}.btn-outline:hover{border-color:var(--mint-deep);color:var(--mint-deep)}
    .download-panel{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:center;background:var(--mint-pale);border:1px solid #cbded3;border-radius:var(--radius);padding:34px}
    .download-panel h2{font-size:30px;margin:10px 0 12px}.download-panel p{color:var(--ink-soft)}
    .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.meta-chip{border:1px solid #bdd2c6;border-radius:8px;padding:7px 11px;font-size:12px;color:var(--mint-deep);background:rgba(255,255,255,.5)}
    .device-board{display:flex;justify-content:center;align-items:end;gap:15px;min-height:270px}
    .phone{width:126px;height:242px;border:7px solid var(--ink);border-radius:22px;background:#fff;box-shadow:0 10px 24px rgba(32,40,39,.16);padding:22px 10px 12px;position:relative}
    .phone:before{content:"";position:absolute;width:42px;height:5px;border-radius:5px;background:var(--ink);top:8px;left:35px}
    .phone.tall{height:274px;background:#f4f8f4}.phone h4{font-size:12px;margin:0 0 13px;color:var(--mint-deep)}
    .screen-bar{height:9px;background:var(--mint);border-radius:5px;margin-bottom:9px}.screen-bar.short{width:65%;background:var(--amber-light)}
    .screen-card{height:42px;background:var(--cream);border-radius:7px;margin:9px 0;padding:8px}.screen-card i{display:block;width:70%;height:5px;background:#a7b9b0;border-radius:3px}.screen-card i:last-child{width:45%;margin-top:6px;background:#d5ddd8}
    .label{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--mint-pale);color:var(--mint-deep);font-size:11px;font-weight:700;width:max-content}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:25px 25px 10px 0;border-right:1px solid var(--line);margin-right:25px;position:relative}.step:last-child{border:0;margin:0}
    .step-num{width:34px;height:34px;border-radius:50%;background:var(--mint-deep);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:16px}
    .step h3{font-size:17px;margin:0 0 7px}.step p{color:var(--muted);font-size:13px;margin:0}
    .version-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
    .version-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .version-item{display:grid;grid-template-columns:105px 120px 1fr 20px;gap:18px;align-items:center;padding:19px 22px;border-bottom:1px solid var(--line)}
    .version-item:last-child{border:0}.version-item:hover{background:#f0f5f0}.version-item b{color:var(--mint-deep)}.version-item time{font-size:13px;color:var(--amber);font-weight:700}.version-item p{margin:0;color:var(--muted);font-size:13px}.arrow{font-size:21px;color:var(--mint-deep)}
    .info-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:28px}.info-card h3{font-size:21px;margin:0 0 18px}.info-card ul{list-style:none;padding:0;margin:0}.info-card li{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.15);color:#d1dbd6;font-size:14px}.info-card li:last-child{border:0}.info-card li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:10px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px}.faq-item summary{cursor:pointer;list-style:none;font-weight:700;padding:18px 25px 18px 0;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:0;color:var(--mint-deep);font-size:21px;top:14px}.faq-item[open] summary:after{content:"−"}.faq-item p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .related{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.related-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:21px}.related-card h3{font-size:17px;margin:10px 0 6px}.related-card p{font-size:13px;color:var(--muted);margin:0 0 15px}
    .closing{background:var(--ink);color:#fff;padding:52px 0}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.closing h2{font-size:29px;margin:0 0 8px}.closing p{color:#c1cdc7;margin:0}
    .site-footer{background:#19201f;color:#dce5e0;padding:54px 0 20px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:#9eaca6;font-size:13px;max-width:290px;margin-top:18px}.footer-title{font-weight:800;color:#fff;margin-bottom:15px}.footer-links{display:grid;gap:9px}.footer-links a{color:#aab7b1;font-size:13px}.footer-links a:hover{color:var(--mint)}.copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#83918b;font-size:12px}
    :focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    @media(max-width:1024px){.header-inner{gap:18px}.logo{min-width:205px}.main-nav{gap:13px}.main-nav a{font-size:13px}.page-hero-grid{gap:30px}.download-panel{grid-template-columns:1fr 1fr}.version-item{grid-template-columns:85px 100px 1fr 20px}}
    @media(max-width:768px){.site-header{height:68px}.header-inner{justify-content:space-between}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 24px 16px;flex-direction:column;align-items:stretch;gap:0;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{height:46px}.header-cta{display:none}.menu-toggle{display:block}.page-hero{padding:40px 0}.page-hero-grid,.download-panel,.version-grid{grid-template-columns:1fr}.section{padding:58px 0}.steps{grid-template-columns:1fr 1fr;border-top:0;gap:20px}.step{border:0;margin:0;padding:18px 8px 8px 0;border-top:1px solid var(--line)}.faq-grid,.related{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.closing-inner{display:block}.closing .btn{margin-top:22px}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
    @media(max-width:520px){.container{width:min(var(--container),calc(100% - 30px))}.logo{min-width:0}.logo-text{font-size:14px}.logo-mark{width:32px;height:32px}.page-hero h1{font-size:36px}.lead{font-size:15px}.download-panel{padding:22px}.device-board{gap:7px;transform:scale(.88);transform-origin:center}.phone{width:108px}.phone.tall{height:250px}.version-item{grid-template-columns:1fr 1fr;gap:5px 12px}.version-item p{grid-column:1/-1}.version-item .arrow{display:none}.footer-grid{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:12px}.steps{grid-template-columns:1fr}.site-footer{padding-top:42px}}

/* roulang page: category4 */
:root{
  --ink:#202827;--ink-soft:#40504d;--muted:#74817d;--paper:#f7f7f2;
  --cream:#eeefe8;--mint:#b9d6c8;--mint-deep:#47796b;--mint-pale:#e4f0e9;
  --amber:#d98b3d;--amber-light:#f5dfc5;--white:#fff;--line:#dfe4dc;
  --shadow:0 14px 38px rgba(28,45,40,.09);--radius:16px;--container:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none;transition:.25s ease}
a:focus,button:focus{outline:3px solid rgba(71,121,107,.3);outline-offset:3px}
img{max-width:100%;display:block}
button{font:inherit;border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:78px;background:rgba(247,247,242,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:36px;height:36px;border:3px solid var(--mint-deep);border-radius:10px 10px 13px 13px;position:relative;display:grid;place-items:center;color:var(--mint-deep);font-weight:900}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;height:3px;background:var(--mint-deep);left:6px;right:6px}
.logo-mark:before{top:10px}.logo-mark:after{bottom:9px}
.logo-text{font-size:16px;line-height:1.2}.logo-text small{display:block;color:var(--mint-deep);font-size:10px;letter-spacing:.16em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:24px;flex:1}
.main-nav a{height:78px;display:flex;align-items:center;color:var(--ink-soft);font-size:14px;position:relative;white-space:nowrap}
.main-nav a:after{content:"";position:absolute;bottom:0;left:0;right:100%;height:3px;background:var(--mint-deep);transition:.25s}
.main-nav a:hover,.main-nav a.active{color:var(--mint-deep);font-weight:700}
.main-nav a:hover:after,.main-nav a.active:after{right:0}
.header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:700;transition:.25s ease}
.header-cta{background:var(--ink);color:#fff;padding:11px 18px;font-size:13px;white-space:nowrap}
.header-cta:hover,.btn-dark:hover{background:var(--mint-deep);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
.page-intro{padding:58px 0 54px;background:var(--cream);border-bottom:1px solid var(--line)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:28px}
.breadcrumb a:hover{color:var(--mint-deep)}
.intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end}
.eyebrow,.section-kicker{color:var(--mint-deep);font-size:12px;font-weight:800;letter-spacing:.16em}
.page-intro h1{font-size:clamp(34px,5vw,60px);line-height:1.15;letter-spacing:-.05em;margin:14px 0 18px}
.page-intro h1 span{color:var(--mint-deep)}
.lead{font-size:17px;color:var(--ink-soft);max-width:700px;margin:0}
.intro-note{background:var(--white);padding:24px;border-left:4px solid var(--amber);border-radius:12px;box-shadow:var(--shadow)}
.intro-note strong{display:block;font-size:18px;margin-bottom:7px}.intro-note p{margin:0;color:var(--muted);font-size:13px}
.section{padding:76px 0}.section.alt{background:var(--cream)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.25;letter-spacing:-.03em;margin:8px 0 0}
.section-head p{color:var(--muted);max-width:540px;margin:0}
.security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.security-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:25px;display:flex;gap:18px;transition:.25s}
.security-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--mint)}
.number{width:38px;height:38px;flex:0 0 38px;border-radius:10px;background:var(--mint-pale);color:var(--mint-deep);display:grid;place-items:center;font-weight:800}
.security-card h3{font-size:18px;margin:0 0 6px}.security-card p{color:var(--muted);font-size:14px;margin:0}
.notice-panel{background:var(--mint-pale);border:1px solid #c9ded2;border-radius:var(--radius);padding:28px 32px;display:flex;gap:22px;align-items:flex-start}
.notice-icon{font-size:28px;color:var(--mint-deep);line-height:1}.notice-panel h2{font-size:23px;margin:0 0 7px}.notice-panel p{margin:0;color:var(--ink-soft)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-card{border-radius:14px;padding:27px;border:1px solid var(--line);background:#fff}
.compare-card.good{border-top:4px solid var(--mint-deep)}.compare-card.warn{border-top:4px solid var(--amber)}
.compare-card h3{margin:0 0 14px;font-size:19px}.compare-card ul{margin:0;padding-left:20px;color:var(--ink-soft)}.compare-card li{margin:7px 0}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.process:before{content:"";position:absolute;top:21px;left:10%;right:10%;height:1px;background:var(--mint)}
.step{position:relative;text-align:center;padding:0 18px}.step-dot{width:43px;height:43px;margin:0 auto 17px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;border:5px solid var(--paper);box-shadow:0 0 0 1px var(--mint)}
.step h3{font-size:16px;margin:0 0 6px}.step p{font-size:13px;color:var(--muted);margin:0}
.update-list{display:grid;gap:10px}.update-item{display:grid;grid-template-columns:105px 100px 1fr 22px;align-items:center;gap:18px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:11px}
.update-item:hover{border-color:var(--mint-deep);transform:translateX(3px)}
.update-item time{font-weight:800;color:var(--amber);font-size:13px}.update-item h3{font-size:16px;margin:0 0 3px}.update-item p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--mint-pale);color:var(--mint-deep);font-size:11px;font-weight:700;width:max-content}
.empty-state{padding:30px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:12px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px}.faq-item summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";float:right;color:var(--mint-deep);font-size:20px}.faq-item[open] summary:after{content:"－"}.faq-item p{border-top:1px solid var(--line);padding:13px 0 18px;color:var(--muted);font-size:14px;margin:0}
.return-panel{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;display:flex;align-items:center;justify-content:space-between;gap:25px}.return-panel h2{font-size:26px;margin:0 0 6px}.return-panel p{color:#bbc8c2;margin:0}.btn{min-height:46px;padding:0 21px}.btn-primary{background:var(--amber);color:#fff}.btn-primary:hover{background:#bd6e27;transform:translateY(-2px)}.btn-outline{border:1px solid #aebdb4;color:var(--ink);background:transparent}.btn-outline:hover{border-color:var(--mint-deep);color:var(--mint-deep)}
.site-footer{background:var(--ink);color:#fff;padding:54px 0 20px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:#aebbb5;max-width:310px;font-size:13px;margin-top:18px}.footer-title{font-weight:800;margin-bottom:14px}.footer-links{display:grid;gap:9px}.footer-links a{color:#aebbb5;font-size:13px}.footer-links a:hover{color:var(--mint)}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:16px;color:#93a19b;font-size:12px;display:flex;justify-content:space-between;gap:15px}
@media(max-width:1024px){.header-inner{gap:18px}.logo{min-width:205px}.main-nav{gap:14px}.main-nav a{font-size:13px}.intro-grid{gap:35px}.process{grid-template-columns:repeat(2,1fr);gap:30px}.process:before{display:none}}
@media(max-width:768px){.site-header{height:68px}.header-inner{justify-content:space-between}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 24px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{height:48px;border-bottom:1px solid var(--line)}.header-cta{display:none}.menu-toggle{display:block}.container{width:min(var(--container),calc(100% - 32px))}.intro-grid,.security-grid,.compare-grid,.faq-grid{grid-template-columns:1fr}.page-intro{padding:40px 0}.section{padding:56px 0}.section-head{display:block}.section-head p{margin-top:12px}.update-item{grid-template-columns:1fr 1fr 20px;gap:9px}.update-item p{grid-column:1 / -1}.update-item time{grid-column:1}.update-item .tag{grid-column:2;grid-row:1}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}}
@media(max-width:520px){.logo{min-width:0}.logo-text{font-size:14px}.logo-mark{width:32px;height:32px}.intro-note,.notice-panel,.return-panel{padding:22px}.notice-panel,.return-panel{display:block}.notice-icon{margin-bottom:12px}.process{grid-template-columns:1fr;text-align:left;gap:22px}.process .step{text-align:left;padding-left:62px}.step-dot{position:absolute;left:0;top:0;margin:0}.return-panel .btn{margin-top:20px;width:100%}.footer-grid{grid-template-columns:1fr}.update-item{padding:15px}.page-intro h1{font-size:38px}}