/* roulang page: index */
:root {
  --c-primary: #E07A5F;
  --c-primary-light: rgba(224,122,95,0.10);
  --c-primary-mid: rgba(224,122,95,0.18);
  --c-secondary: #A8D5C2;
  --c-secondary-light: rgba(168,213,194,0.18);
  --c-bg: #FAF8F4;
  --c-card: #FFFFFF;
  --c-alt: #F3F1EE;
  --c-text: #2D2926;
  --c-muted: #7A7470;
  --c-border: #E5E2DC;
  --c-chip-bg: #F0EDE8;
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --r-card: 12px;
  --r-btn: 8px;
  --r-chip: 20px;
  --r-img: 16px;
  --font: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);line-height:1.75;font-size:1rem}
a{color:var(--c-primary);text-decoration:none;transition:color .15s}
a:hover{color:#c4614a}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:var(--font)}

/* ── Container ── */
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ── Buttons ── */
.btn-primary{display:inline-block;background:var(--c-primary);color:#fff;padding:12px 28px;border-radius:var(--r-btn);font-size:.95rem;font-weight:600;border:none;transition:background .15s,transform .12s,box-shadow .15s;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:#c4614a;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{display:inline-block;background:transparent;color:var(--c-primary);padding:11px 26px;border-radius:var(--r-btn);font-size:.95rem;font-weight:600;border:2px solid var(--c-primary);transition:all .15s}
.btn-outline:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:.85rem}

/* ── Header / Nav ── */
.site-header{background:#fff;border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:100;box-shadow:0 1px 8px rgba(0,0,0,0.05)}
.nav-top{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-size:1.15rem;font-weight:700;color:var(--c-text);letter-spacing:-.01em}
.logo span{color:var(--c-primary)}
.nav-chips{display:flex;gap:8px;padding:10px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{display:inline-block;padding:6px 16px;border-radius:var(--r-chip);font-size:.875rem;font-weight:500;background:var(--c-chip-bg);color:var(--c-text);cursor:pointer;white-space:nowrap;transition:background .12s,color .12s;border:none}
.chip:hover{background:var(--c-primary-light);color:var(--c-primary)}
.chip.active{background:var(--c-primary);color:#fff}

/* ── Hero ── */
.hero{background:var(--c-bg);padding:72px 0 64px;position:relative;overflow:hidden}
.hero-deco{position:absolute;border-radius:50%;opacity:.10;pointer-events:none}
.hero-deco-1{width:320px;height:320px;background:var(--c-primary);top:-80px;right:-60px}
.hero-deco-2{width:200px;height:200px;background:var(--c-secondary);bottom:-40px;left:-40px}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-badge{display:inline-block;background:var(--c-primary-light);color:var(--c-primary);font-size:.8rem;font-weight:600;padding:4px 12px;border-radius:var(--r-chip);margin-bottom:16px}
.hero h1{font-size:clamp(1.8rem,4vw,3rem);font-weight:700;line-height:1.2;color:var(--c-text);margin-bottom:16px}
.hero h1 em{color:var(--c-primary);font-style:normal}
.hero-sub{font-size:1.05rem;color:var(--c-muted);line-height:1.7;margin-bottom:28px;max-width:480px}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:24px;margin-top:28px}
.stat-item{text-align:center}
.stat-num{font-size:1.5rem;font-weight:700;color:var(--c-primary)}
.stat-label{font-size:.8rem;color:var(--c-muted)}
.hero-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.matrix-card{background:#fff;border-radius:var(--r-card);padding:18px 12px;text-align:center;box-shadow:var(--shadow-sm);border:2px solid transparent;transition:border-color .15s,transform .15s,box-shadow .15s;cursor:pointer}
.matrix-card:hover{border-color:var(--c-primary);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.matrix-card .icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:1.2rem}
.matrix-card .icon.coral{background:var(--c-primary-light);color:var(--c-primary)}
.matrix-card .icon.mint{background:var(--c-secondary-light);color:#3a9e7e}
.matrix-card h4{font-size:.875rem;font-weight:600;color:var(--c-text)}

/* ── Section common ── */
.section{padding:64px 0}
.section-alt{background:var(--c-alt)}
.section-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:32px}
.section-title{font-size:clamp(1.3rem,2.5vw,1.8rem);font-weight:600;color:var(--c-text)}
.section-title::before{content:'';display:inline-block;width:4px;height:1.1em;background:var(--c-primary);border-radius:2px;margin-right:10px;vertical-align:middle}
.section-link{font-size:.875rem;color:var(--c-primary);font-weight:500}
.section-link:hover{text-decoration:underline}
.section-desc{color:var(--c-muted);font-size:.95rem;margin-top:6px;max-width:600px}

/* ── Scroll track ── */
.scroll-track{display:flex;gap:16px;overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.scroll-track::-webkit-scrollbar{display:none}
.track-card{flex:0 0 160px;background:#fff;border-radius:var(--r-card);padding:20px 14px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s;cursor:pointer}
.track-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.track-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:1.3rem}
.track-icon.coral{background:var(--c-primary-light);color:var(--c-primary)}
.track-icon.mint{background:var(--c-secondary-light);color:#3a9e7e}
.track-icon.warm{background:#FFF3E0;color:#E07A5F}
.track-name{font-size:.875rem;font-weight:600;color:var(--c-text);margin-bottom:4px}
.track-count{font-size:.78rem;color:var(--c-muted)}

/* ── Content cards ── */
.content-card{background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);border:2px solid transparent;transition:border-color .15s,transform .15s,box-shadow .15s;height:100%}
.content-card:hover{border-color:var(--c-primary);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card-thumb{aspect-ratio:16/9;background:var(--c-alt);display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--c-border)}
.card-body{padding:16px}
.card-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.tag{display:inline-block;padding:3px 10px;border-radius:var(--r-chip);font-size:.75rem;font-weight:500;background:var(--c-secondary-light);color:#3a9e7e}
.tag.coral{background:var(--c-primary-light);color:var(--c-primary)}
.card-title{font-size:1rem;font-weight:600;color:var(--c-text);line-height:1.4;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:.85rem;color:var(--c-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.card-link{font-size:.85rem;color:var(--c-primary);font-weight:500}
.card-link:hover{text-decoration:underline}

/* ── Sub-section (专题分区) ── */
.sub-section{padding:48px 0}
.sub-section+.sub-section{border-top:1px solid var(--c-border)}
.sub-header{margin-bottom:24px}
.sub-header h3{font-size:1.25rem;font-weight:600;color:var(--c-text);margin-bottom:6px}
.sub-header p{font-size:.9rem;color:var(--c-muted)}
.sub-header .btn-sm{margin-top:12px}

/* ── Steps CTA ── */
.steps-section{background:var(--c-primary-light);padding:72px 0}
.steps-title{text-align:center;font-size:clamp(1.3rem,2.5vw,1.8rem);font-weight:600;margin-bottom:8px}
.steps-sub{text-align:center;color:var(--c-muted);margin-bottom:48px}
.steps-row{display:flex;align-items:flex-start;justify-content:center;gap:0;position:relative}
.step-item{flex:1;max-width:260px;text-align:center;padding:0 16px;position:relative}
.step-num{width:44px;height:44px;border-radius:50%;background:var(--c-primary);color:#fff;font-size:1.2rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.step-title{font-size:1rem;font-weight:600;margin-bottom:6px}
.step-desc{font-size:.875rem;color:var(--c-muted);line-height:1.6}
.step-connector{flex:0 0 60px;border-top:2px dashed var(--c-primary);opacity:.4;margin-top:22px}
.steps-cta{text-align:center;margin-top:40px}

/* ── Changelog ── */
.changelog-list{list-style:none}
.changelog-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--c-border)}
.changelog-item:last-child{border-bottom:none}
.cl-date{flex:0 0 90px;font-size:.8rem;color:var(--c-muted);padding-top:3px}
.cl-badge{display:inline-block;padding:2px 10px;border-radius:var(--r-chip);font-size:.75rem;font-weight:600;margin-bottom:6px}
.cl-badge.new{background:var(--c-primary-light);color:var(--c-primary)}
.cl-badge.update{background:var(--c-secondary-light);color:#3a9e7e}
.cl-badge.fix{background:#FFF3E0;color:#c07a30}
.cl-title{font-size:.95rem;font-weight:600;color:var(--c-text);margin-bottom:4px}
.cl-desc{font-size:.875rem;color:var(--c-muted)}

/* ── Tag cloud ── */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{display:inline-block;padding:7px 16px;border-radius:var(--r-chip);font-size:.875rem;background:#fff;color:var(--c-text);border:1px solid var(--c-border);transition:all .15s;box-shadow:var(--shadow-sm)}
.tag-cloud a:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}
.tag-cloud a.hot{background:var(--c-primary-light);border-color:var(--c-primary);color:var(--c-primary)}

/* ── News list ── */
.news-grid{display:grid;grid-template-columns:1fr 320px;gap:32px}
.news-list{list-style:none}
.news-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--c-border)}
.news-item:last-child{border-bottom:none}
.news-index{flex:0 0 28px;height:28px;border-radius:6px;background:var(--c-alt);color:var(--c-muted);font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.news-index.top3{background:var(--c-primary);color:#fff}
.news-content{}
.news-title{font-size:.95rem;font-weight:600;color:var(--c-text);line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:var(--c-text)}
.news-title a:hover{color:var(--c-primary)}
.news-meta{font-size:.78rem;color:var(--c-muted)}
.news-sidebar{}
.sidebar-card{background:#fff;border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-sm);margin-bottom:20px}
.sidebar-card h4{font-size:.95rem;font-weight:600;margin-bottom:14px;color:var(--c-text)}
.sidebar-list{list-style:none}
.sidebar-list li{padding:8px 0;border-bottom:1px solid var(--c-border);font-size:.875rem}
.sidebar-list li:last-child{border-bottom:none}
.sidebar-list a{color:var(--c-text)}
.sidebar-list a:hover{color:var(--c-primary)}

/* ── FAQ ── */
.faq-accordion .accordion-item{border:1px solid var(--c-border);border-radius:var(--r-card);margin-bottom:10px;overflow:hidden}
.faq-accordion .accordion-title{font-size:.975rem;font-weight:600;color:var(--c-text);padding:16px 20px;background:#fff;border:none;border-left:3px solid transparent;transition:border-color .12s,background .12s}
.faq-accordion .accordion-title:hover,.faq-accordion .accordion-title:focus{background:var(--c-alt);border-left-color:var(--c-primary);color:var(--c-primary)}
.faq-accordion .accordion-title::before{float:right;content:'\f107';font-family:'Font Awesome 6 Free';font-weight:900;color:var(--c-muted)}
.faq-accordion .is-active .accordion-title{border-left-color:var(--c-primary);color:var(--c-primary);background:var(--c-alt)}
.faq-accordion .is-active .accordion-title::before{content:'\f106'}
.faq-accordion .accordion-content{background:var(--c-alt);padding:16px 20px;font-size:.9rem;color:var(--c-muted);line-height:1.75;border-top:1px solid var(--c-border)}

/* ── Footer ── */
.site-footer{background:#2D2926;color:#c8c4bf;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-bottom:40px}.footer-col h4{color:#fff;font-size:.95rem;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:#c8c4bf;font-size:.875rem;transition:color .15s}
.footer-col ul li a:hover{color:var(--c-primary)}
.footer-brand p{font-size:.875rem;line-height:1.65;color:#a8a39e;margin-top:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:.8rem;color:#a8a39e}
.footer-bottom a{color:#c8c4bf}
.footer-bottom a:hover{color:var(--c-primary)}

/* ── Responsive ── */
@media (max-width:1024px){
  .wrap{padding:0 20px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-matrix{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .hero{padding:48px 0 40px}
  .hero h1{font-size:1.6rem}
  .hero-ctas{flex-direction:column}
  .steps-row{flex-direction:column;align-items:center;gap:24px}
  .step-connector{display:none}
  .step-item{max-width:100%}
  .matrix-card{padding:14px 10px}
  .nav-top{flex-wrap:wrap;gap:10px}
}
@media (max-width:520px){
  .hero-matrix{grid-template-columns:1fr}
  .hero-stats{flex-direction:column;gap:16px}
  .track-card{flex:0 0 140px}
}

/* roulang page: category1 */
:root{
  --primary:#E07A5F;
  --primary-soft:rgba(224,122,95,0.10);
  --primary-deep:#C9634A;
  --mint:#A8D5C2;
  --mint-soft:rgba(168,213,194,0.25);
  --bg:#FAF8F4;
  --bg-alt:#F3F1EE;
  --card:#FFFFFF;
  --text:#2D2926;
  --text-sub:#7A7470;
  --line:#E5E2DC;
  --chip-bg:#F0EDE8;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-chip:20px;
  --shadow:0 2px 12px rgba(0,0,0,0.07);
  --shadow-hover:0 6px 20px rgba(0,0,0,0.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:1rem;
  line-height:1.75;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .12s ease;}
a:hover{color:var(--primary-deep);}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
h1,h2,h3,h4{color:var(--text);margin:0 0 .5em;}
h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:700;line-height:1.2;}
h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:600;line-height:1.3;}
h3{font-size:1.1rem;font-weight:600;line-height:1.4;}
p{margin:0 0 1em;}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:40px;}
.section-head .kicker{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.08em;color:var(--primary);background:var(--primary-soft);padding:4px 14px;border-radius:var(--radius-chip);margin-bottom:12px;}
.section-head p{color:var(--text-sub);max-width:62ch;}

/* ---------- Header ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;}
.nav-top{display:flex;align-items:center;justify-content:space-between;padding:14px 0;}
.logo{font-size:1.25rem;font-weight:700;color:var(--text);letter-spacing:.02em;}
.logo span{color:var(--primary);}
.logo:hover{color:var(--text);}
.btn-primary{display:inline-block;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-btn);padding:12px 32px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .12s ease,transform .12s ease,box-shadow .12s ease;}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);}
.btn-sm{padding:9px 22px;font-size:.9rem;}
.btn-outline{display:inline-block;background:transparent;color:var(--primary);border:2px solid var(--primary);border-radius:var(--radius-btn);padding:10px 30px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .12s ease;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep);}
.nav-chips{display:flex;gap:10px;padding:0 0 14px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{flex:0 0 auto;background:var(--chip-bg);color:var(--text);border:none;border-radius:var(--radius-chip);padding:7px 20px;font-size:.9rem;font-weight:500;cursor:pointer;transition:background .12s ease,color .12s ease;}
.chip:hover{background:var(--primary-soft);color:var(--primary-deep);}
.chip.active{background:var(--primary);color:#fff;}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:88px 0 80px;}
.cat-hero .deco{position:absolute;border-radius:50%;pointer-events:none;}
.cat-hero .deco-a{width:420px;height:420px;background:var(--primary);opacity:.10;top:-160px;right:-120px;}
.cat-hero .deco-b{width:320px;height:320px;background:var(--mint);opacity:.18;bottom:-140px;left:-100px;border-radius:36% 64% 55% 45%/50% 40% 60% 50%;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:56px;align-items:center;position:relative;z-index:2;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.badge{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-chip);padding:6px 16px;font-size:.85rem;font-weight:600;color:var(--text);box-shadow:var(--shadow);}
.badge i{color:var(--primary);}
.hero-sub{font-size:1.1rem;color:var(--text-sub);max-width:56ch;margin-bottom:16px;}
.hero-note{display:flex;align-items:flex-start;gap:10px;background:var(--mint-soft);border-left:3px solid var(--mint);border-radius:8px;padding:12px 16px;font-size:.9rem;color:var(--text);margin-bottom:28px;max-width:56ch;}
.hero-note i{color:#5CA98C;margin-top:4px;}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;}
.hero-panel{background:var(--card);border-radius:16px;box-shadow:var(--shadow);padding:32px 28px;border:1px solid var(--line);}
.hero-panel h3{margin-bottom:18px;font-size:1.05rem;}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.stat{background:var(--bg);border-radius:10px;padding:16px 14px;text-align:center;transition:transform .12s ease,box-shadow .12s ease;}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.stat b{display:block;font-size:1.5rem;color:var(--primary);font-weight:700;line-height:1.2;}
.stat span{font-size:.82rem;color:var(--text-sub);}
.panel-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.panel-tags .tag{background:var(--chip-bg);border-radius:var(--radius-chip);padding:5px 14px;font-size:.8rem;color:var(--text-sub);transition:background .12s ease,color .12s ease;}
.panel-tags .tag:hover{background:var(--primary-soft);color:var(--primary-deep);}

/* ---------- Feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease;}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.feature-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:18px;}
.feature-card:nth-child(even) .feature-icon{background:var(--mint-soft);color:#4E9C7F;}
.feature-card p{color:var(--text-sub);font-size:.95rem;margin:0;}

/* ---------- Scene rows ---------- */
.scene-list{display:grid;gap:20px;}
.scene-item{display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 26px;box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease;}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.scene-icon{width:56px;height:56px;border-radius:50%;background:var(--mint-soft);color:#4E9C7F;display:flex;align-items:center;justify-content:center;font-size:1.3rem;}
.scene-item:nth-child(even) .scene-icon{background:var(--primary-soft);color:var(--primary);}
.scene-item p{margin:0;color:var(--text-sub);font-size:.92rem;}
.scene-tag{background:var(--chip-bg);border-radius:var(--radius-chip);padding:6px 16px;font-size:.82rem;color:var(--text-sub);white-space:nowrap;}

/* ---------- Steps ---------- */
.steps-band{background:var(--primary-soft);}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;margin-bottom:44px;}
.step{text-align:center;position:relative;padding:0 12px;}
.step-num{width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;font-size:1.5rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:var(--shadow);}
.step h3{margin-bottom:8px;}
.step p{color:var(--text-sub);font-size:.92rem;margin:0;}
.step::after{content:"";position:absolute;top:22px;left:calc(50% + 40px);width:calc(100% - 80px);border-top:2px dashed var(--primary);opacity:.45;}
.step:last-child::after{display:none;}
.steps-cta{text-align:center;}
.steps-cta .btn-primary{padding:14px 40px;font-size:1.05rem;}

/* ---------- Update strip ---------- */
.update-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.update-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease;}
.update-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.update-card .thumb{aspect-ratio:16/9;border-radius:8px;background:var(--chip-bg);display:flex;align-items:center;justify-content:center;color:var(--text-sub);font-size:1.6rem;margin-bottom:14px;}
.update-card h3{font-size:1rem;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.update-card .meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px;}
.mini-tag{background:var(--mint-soft);color:#3E8168;border-radius:var(--radius-chip);padding:3px 12px;font-size:.75rem;font-weight:600;}
.mini-tag.orange{background:var(--primary-soft);color:var(--primary-deep);}
.update-card p{font-size:.85rem;color:var(--text-sub);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);}
.faq-q{width:100%;text-align:left;background:none;border:none;border-left:3px solid transparent;padding:18px 22px;font-size:1rem;font-weight:600;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;transition:border-color .12s ease,background .12s ease;}
.faq-q:hover{border-left-color:var(--primary);background:var(--primary-soft);}
.faq-q i{color:var(--primary);transition:transform .2s ease;flex:0 0 auto;}
.faq-item.open .faq-q{border-left-color:var(--primary);}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{display:none;background:var(--bg-alt);padding:16px 22px;font-size:.95rem;color:var(--text-sub);border-top:1px solid var(--line);}
.faq-item.open .faq-a{display:block;}

/* ---------- Bottom CTA ---------- */
.cta-band{background:linear-gradient(120deg,var(--primary) 0%,var(--primary-deep) 100%);border-radius:20px;padding:56px 48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;box-shadow:var(--shadow-hover);}
.cta-band h2{color:#fff;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.85);margin:0;max-width:56ch;}
.btn-light{display:inline-block;background:#fff;color:var(--primary-deep);border-radius:var(--radius-btn);padding:14px 40px;font-size:1.05rem;font-weight:700;transition:transform .12s ease,box-shadow .12s ease;}
.btn-light:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.2);color:var(--primary-deep);}

/* ---------- Footer ---------- */
.site-footer{background:#2D2926;color:#CFC9C3;padding:56px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:40px;}
.footer-col h4{color:#fff;font-size:1.05rem;margin-bottom:16px;}
.footer-col p{font-size:.9rem;color:#A39C95;line-height:1.8;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#CFC9C3;font-size:.9rem;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{border-top:1px solid #443E3A;padding:20px 0;text-align:center;}
.footer-bottom p{margin:0;font-size:.85rem;color:#A39C95;}
.footer-bottom a{color:#CFC9C3;}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .update-strip{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .cat-hero{padding:60px 0;}
  .steps{grid-template-columns:1fr;gap:36px;}
  .step::after{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .scene-item{grid-template-columns:56px 1fr;}
  .scene-tag{display:none;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:520px){
  .feature-grid{grid-template-columns:1fr;}
  .update-strip{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr 1fr;}
  .hero-cta .btn-primary,.hero-cta .btn-outline{width:100%;text-align:center;}
  .nav-top{flex-wrap:wrap;gap:10px;}
}

/* roulang page: category2 */
:root {
  --color-primary: #E07A5F;
  --color-secondary: #A8D5C2;
  --color-bg: #FAF8F4;
  --color-card: #FFFFFF;
  --color-alt-bg: #F3F1EE;
  --color-text: #2D2926;
  --color-text-light: #7A7470;
  --color-border: #E5E2DC;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-chip: 20px;
  --radius-img: 16px;
  --shadow: 0 2px 12px rgba(0,0,0,0.07);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 120ms ease;
}

a:hover {
  color: #C86A50;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, select, textarea {
  font-family: inherit;
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.site-header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.logo span {
  color: var(--color-primary);
}

.nav-chips {
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) 0 var(--spacing-sm) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.nav-chips::-webkit-scrollbar {
  display: none;
}

.chip {
  padding: 8px 20px;
  border-radius: var(--radius-chip);
  background: #F0EDE8;
  color: var(--color-text);
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all 120ms ease;
}

.chip:hover {
  background: rgba(224, 122, 95, 0.1);
}

.chip.active {
  background: var(--color-primary);
  color: white;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  font-weight: 600;
  display: inline-block;
  transition: all 120ms ease;
}

.btn-primary:hover {
  background: #C86A50;
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-primary.btn-sm {
  padding: 8px 20px;
  font-size: 0.9rem;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  cursor: pointer;
  font-weight: 600;
  display: inline-block;
  transition: all 120ms ease;
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
}

.hero-section {
  position: relative;
  padding: var(--spacing-xxl) 0;
  overflow: hidden;
}

.hero-deco {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  z-index: 0;
}

.hero-deco.deco-1 {
  width: 320px;
  height: 320px;
  background: var(--color-primary);
  top: -80px;
  right: -80px;
}

.hero-deco.deco-2 {
  width: 240px;
  height: 240px;
  background: var(--color-secondary);
  bottom: -60px;
  left: -60px;
  border-radius: 40%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.reward-panel {
  background: linear-gradient(135deg, rgba(224, 122, 95, 0.08), rgba(168, 213, 194, 0.08));
  padding: var(--spacing-lg);
  border-radius: var(--radius-card);
  border: 2px solid var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.reward-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.progress-bar {
  background: #E5E2DC;
  height: 12px;
  border-radius: 20px;
  overflow: hidden;
  margin: var(--spacing-sm) 0;
}

.progress-fill {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  height: 100%;
  width: 78%;
  border-radius: 20px;
  position: relative;
}

.progress-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-xs);
}

.reward-stats {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: var(--spacing-sm);
  background: white;
  border-radius: 8px;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section-alt {
  background: var(--color-alt-bg);
}

.section-header {
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 200ms ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border: 2px solid var(--color-primary);
}

.card-image {
  width: 100%;
  aspect-ratio: 16/9;
  background: #F0EDE8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.card-body {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}

.tag {
  padding: 4px 12px;
  background: var(--color-secondary);
  color: var(--color-text);
  border-radius: var(--radius-chip);
  font-size: 0.8rem;
  font-weight: 500;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
}

.filter-section {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  margin-bottom: var(--spacing-lg);
}

.filter-row {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.filter-label {
  font-weight: 600;
  color: var(--color-text);
  min-width: 80px;
}

.filter-chips {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  flex: 1;
}

.filter-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--spacing-sm) 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  text-align: center;
  transition: all 200ms ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(224, 122, 95, 0.15), rgba(168, 213, 194, 0.15));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-primary);
  margin: 0 auto var(--spacing-md) auto;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.steps-section {
  background: rgba(224, 122, 95, 0.08);
  padding: var(--spacing-xxl) 0;
  position: relative;
  overflow: hidden;
}

.steps-container {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.step-item {
  flex: 1;
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-sm) auto;
  box-shadow: 0 4px 12px rgba(224, 122, 95, 0.3);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.step-desc {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.step-connector {
  position: absolute;
  top: 32px;
  left: calc(50% + 32px);
  right: calc(-50% + 32px);
  height: 2px;
  border-top: 2px dashed var(--color-border);
}

.step-item:last-child .step-connector {
  display: none;
}

.cta-center {
  text-align: center;
}

.faq-section {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius-card);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 200ms ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-hover);
}

.faq-question {
  padding: var(--spacing-md);
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 200ms ease;
  border-left: 3px solid transparent;
}

.faq-question:hover {
  border-left-color: var(--color-primary);
}

.faq-question.active {
  border-left-color: var(--color-primary);
  color: var(--color-primary);
}

.faq-icon {
  transition: transform 200ms ease;
}

.faq-question.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease;
}

.faq-answer-inner {
  padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
  background: var(--color-alt-bg);
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.site-footer {
  background: var(--color-text);
  color: #C0BBB6;
  padding: var(--spacing-xxl) 0 var(--spacing-md) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.footer-col p {
  line-height: 1.7;
  font-size: 0.95rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
  color: #C0BBB6;
  transition: color 120ms ease;
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.9rem;
}

.footer-bottom a {
  color: #C0BBB6;
}

.footer-bottom a:hover {
  color: var(--color-primary);
}

@media screen and (max-width: 768px) {
  .nav-top {
    flex-wrap: wrap;
  }
  
  .hero-section {
    padding: var(--spacing-lg) 0;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .reward-stats {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
  
  .filter-row {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .steps-container {
    flex-direction: column;
    gap: var(--spacing-xl);
  }
  
  .step-connector {
    display: none;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

@media screen and (max-width: 520px) {
  .wrap {
    padding: 0 var(--spacing-sm);
  }
  
  .card-body {
    padding: var(--spacing-sm);
  }
  
  .filter-section {
    padding: var(--spacing-sm);
  }
}