/* roulang page: index */
:root{
  --ink:#11130F;
  --dark:#0D0F0C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --lime:#C7FF3C;
  --orange:#FF6B35;
  --graphite:#2B2E26;
  --muted:#6F7469;
  --line:#DAD6CA;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(17,19,15,.04);
  --shadow-2:0 12px 30px rgba(17,19,15,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--graphite);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,dl,dd{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(17,19,15,.09);background:rgba(247,245,239,.97)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;transition:padding .25s ease}
.site-header.is-stuck .brand-row{padding:9px 0}
.brand{display:flex;align-items:baseline;gap:2px;white-space:nowrap;letter-spacing:-.02em}
.brand-main{font-size:24px;font-weight:900;color:var(--ink);letter-spacing:-.02em;transition:font-size .25s ease}
.brand-sub{font-size:14px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.site-header.is-stuck .brand-main{font-size:20px}
.site-header.is-stuck .brand-sub{font-size:12px}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:999px;
  border:1.5px solid var(--line);background:var(--surface);color:var(--ink);
  font-size:14px;font-weight:700;transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.icon-btn:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 0 12px;transition:padding .25s ease}
.channel-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:700;color:var(--ink);transition:background .2s ease,color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{background:var(--ink);color:#fff}
.nav-link.is-active::after{display:none}
.hot-chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.hot-label{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.04em}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--graphite);
  font-size:13px;font-weight:600;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip-lime{background:rgba(199,255,60,.28);border-color:rgba(199,255,60,.9);color:var(--ink)}
.chip-orange{background:rgba(255,107,53,.12);border-color:rgba(255,107,53,.45);color:#B8431A}
.menu-btn{display:none;padding:9px 14px;border-radius:999px;border:1.5px solid var(--ink);font-size:14px;font-weight:700;color:var(--ink)}
.menu-btn:hover{background:var(--ink);color:#fff}

/* 搜索面板 */
.search-panel{
  position:fixed;inset:0;z-index:80;background:rgba(13,15,12,.55);
  display:none;align-items:flex-start;justify-content:center;padding:90px 20px 20px;
}
.search-panel.is-open{display:flex}
.search-box{
  width:100%;max-width:720px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-2);padding:26px;
}
.search-box h2{font-size:20px;font-weight:900;color:var(--ink);margin-bottom:14px}
.search-form{display:flex;gap:10px}
.search-input{
  flex:1;padding:12px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;font-size:16px;color:var(--graphite);transition:border-color .2s ease,box-shadow .2s ease;
}
.search-input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.35)}
.search-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.search-close{margin-top:18px;font-size:14px;font-weight:700;color:var(--muted);text-decoration:underline}
.search-close:hover{color:var(--ink)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);display:none;
  padding:22px;overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-list{display:flex;flex-direction:column;gap:6px}
.drawer-list a{
  padding:14px 16px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);font-size:16px;font-weight:700;color:var(--ink);
}
.drawer-list a.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
.drawer-list a:hover{border-color:var(--ink)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:800;
  letter-spacing:.01em;border:1.5px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-on-dark{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-on-dark:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}

/* ============ 通用版式 ============ */
.section{padding:76px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-title{font-size:clamp(1.5rem,2.6vw,2.15rem);font-weight:900;line-height:1.2;letter-spacing:-.02em;color:var(--ink)}
.section-desc{color:var(--muted);font-size:16px;max-width:640px;margin-top:10px}
.link-more{
  font-size:14px;font-weight:800;color:var(--ink);padding-bottom:2px;
  background-image:linear-gradient(var(--lime),var(--lime));
  background-size:0% 2px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size .25s ease;white-space:nowrap;
}
.link-more:hover{background-size:100% 2px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#C9C4B4}
.thumb{overflow:hidden;border-radius:14px;background:var(--line);aspect-ratio:16/10}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .thumb img{transform:scale(1.03)}
.title-link{
  background-image:linear-gradient(var(--lime),var(--lime));
  background-size:0% 2px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size .25s ease;padding-bottom:2px;
}
.card:hover .title-link,.title-link:hover{background-size:100% 2px}
.meta{font-size:13px;color:var(--muted);font-weight:600}

/* ============ Hero ============ */
.hero{
  position:relative;padding:64px 0 72px;overflow:hidden;
  background:
    radial-gradient(circle at 88% 12%,rgba(199,255,60,.24),transparent 46%),
    linear-gradient(180deg,#F7F5EF 0%,#F2EFE6 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(17,19,15,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(17,19,15,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;font-weight:800;
  color:var(--ink);letter-spacing:.02em;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(199,255,60,.3)}
.hero h1{
  margin-top:20px;font-size:clamp(2.3rem,4.6vw,4.1rem);line-height:1.08;
  font-weight:900;letter-spacing:-.025em;color:var(--ink);
}
.hero h1 em{font-style:normal;background:linear-gradient(180deg,transparent 62%,rgba(199,255,60,.85) 62%)}
.hero-sub{margin-top:20px;font-size:17.5px;line-height:1.8;color:var(--graphite);max-width:37em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats dt{font-size:28px;font-weight:900;color:var(--ink);line-height:1.1;letter-spacing:-.03em}
.hero-stats dt span{font-size:14px;font-weight:800;color:var(--muted);margin-left:3px;letter-spacing:0}
.hero-stats dd{font-size:13px;color:var(--muted);font-weight:600;margin-top:6px}
.hero-media{position:relative}
.hero-media .frame{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:0 22px 50px rgba(17,19,15,.16);background:var(--line);aspect-ratio:4/3;
}
.hero-media .frame img{width:100%;height:100%;object-fit:cover}
.hero-note{
  position:absolute;left:-18px;bottom:26px;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-2);max-width:250px;
}
.hero-note strong{display:block;font-size:15px;color:var(--ink);font-weight:900}
.hero-note span{font-size:12.5px;color:var(--muted);line-height:1.6;display:block;margin-top:4px}

/* ============ 频道入口 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.channel-card{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:16px;align-items:center}
.channel-card .thumb{aspect-ratio:1/1;border-radius:12px}
.channel-card h3{font-size:19px;font-weight:900;color:var(--ink);letter-spacing:-.01em}
.channel-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-top:6px}
.channel-card .go{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;font-weight:800;color:var(--ink)}
.channel-card .go::after{content:"→";transition:transform .22s ease}
.channel-card:hover .go::after{transform:translateX(4px)}

/* ============ 玩法步骤 ============ */
.play-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.play-sticky{position:sticky;top:120px}
.step-list{display:flex;flex-direction:column;gap:16px}
.step-card{
  display:grid;grid-template-columns:auto 1fr;gap:20px;padding:24px 26px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C9C4B4}
.step-num{font-size:34px;font-weight:900;color:var(--ink);line-height:1;letter-spacing:-.04em;opacity:.22}
.step-card h3{font-size:18px;font-weight:900;color:var(--ink)}
.step-card p{font-size:15px;color:var(--muted);line-height:1.78;margin-top:6px}
.step-tag{display:inline-block;margin-bottom:8px;font-size:12px;font-weight:800;color:#4B6B12;background:rgba(199,255,60,.4);border-radius:999px;padding:3px 10px}
.step-photo{grid-column:1/-1;border-radius:14px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/8}
.step-photo img{width:100%;height:100%;object-fit:cover}

/* ============ 奖励预览（深色） ============ */
.dark-block{
  position:relative;background:var(--dark);color:#F7F5EF;padding:78px 0;overflow:hidden;
}
.dark-block::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(199,255,60,.18),transparent 68%);
}
.dark-block .section-title{color:#F7F5EF}
.dark-block .section-desc{color:#B9BEB0}
.reward-layout{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start;z-index:1}
.reward-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.reward-list .reward-item:nth-child(1){grid-column:1/-1}
.reward-item{
  background:#171A14;border:1px solid #2A2E24;border-radius:var(--radius);padding:20px 22px;
  transition:border-color .25s ease,transform .25s ease;
}
.reward-item:hover{border-color:rgba(199,255,60,.55);transform:translateY(-3px)}
.reward-item .r-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.reward-item h3{font-size:16.5px;font-weight:900;color:#F7F5EF}
.reward-item .r-tag{font-size:11.5px;font-weight:800;padding:3px 10px;border-radius:999px;background:rgba(199,255,60,.16);color:var(--lime);border:1px solid rgba(199,255,60,.34)}
.reward-item p{font-size:13.5px;color:#A7AD9E;line-height:1.7;margin-top:8px}
.reward-item .r-line{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:#8E9487;margin-top:14px;font-weight:700}
.progress-card{
  background:#171A14;border:1px solid #2A2E24;border-radius:var(--radius-lg);padding:26px;
}
.progress-card h3{font-size:17px;font-weight:900;color:#F7F5EF}
.progress-card .big{font-size:46px;font-weight:900;color:var(--lime);line-height:1.05;letter-spacing:-.04em;margin-top:12px}
.progress-card .big small{font-size:15px;color:#A7AD9E;font-weight:700;margin-left:6px;letter-spacing:0}
.bar-track{height:10px;background:#2A2E24;border-radius:999px;overflow:hidden;margin-top:16px}
.bar-fill{height:100%;background:var(--lime);border-radius:999px;transition:width .6s ease}
.progress-card ul{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.progress-card li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#B9BEB0}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none}
.dot.off{background:#3A3F32}

/* ============ 里程碑 ============ */
.milestone-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px}
.milestone{
  padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  transition:transform .25s ease,box-shadow .25s ease;
}
.milestone:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.milestone.now{border-color:var(--ink);background:linear-gradient(180deg,#fff 0%,#FBFAF3 100%)}
.milestone .m-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.milestone h3{font-size:16px;font-weight:900;color:var(--ink)}
.milestone .m-num{font-size:26px;font-weight:900;color:var(--ink);letter-spacing:-.03em;margin-top:12px}
.milestone p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7}
.state{font-size:11.5px;font-weight:800;padding:3px 10px;border-radius:999px;white-space:nowrap}
.state-done{background:var(--ink);color:#fff}
.state-now{background:var(--lime);color:var(--ink)}
.state-todo{background:transparent;color:var(--muted);border:1px solid var(--line)}
.mile-note{font-size:13px;color:var(--muted);margin-top:16px}
.mile-note a{color:var(--ink);font-weight:800;text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:3px}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--lime);border-radius:var(--radius-lg);padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  border:1px solid rgba(17,19,15,.12);
}
.cta-band h2{font-size:clamp(1.3rem,2.2vw,1.85rem);font-weight:900;color:var(--ink);letter-spacing:-.02em;line-height:1.25}
.cta-band p{font-size:14.5px;color:#3B4A16;margin-top:8px;font-weight:600}
.cta-band .btn-dark{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.cta-band .btn-dark:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}

/* ============ 资讯区 ============ */
.news-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:26px}
.news-main{grid-column:span 7}
.news-side{grid-column:span 5;display:flex;flex-direction:column;gap:16px}
.news-main .body{padding:22px 24px 24px}
.news-main h3{font-size:23px;font-weight:900;color:var(--ink);line-height:1.35;letter-spacing:-.02em;margin-top:12px}
.news-main p{font-size:15px;color:var(--muted);line-height:1.8;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-main .meta{margin-top:14px;display:flex;gap:14px;flex-wrap:wrap}
.side-card{display:grid;grid-template-columns:104px 1fr;gap:16px;padding:14px;align-items:center}
.side-card .thumb{aspect-ratio:1/1;border-radius:12px}
.side-card h3{font-size:15.5px;font-weight:800;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-card .meta{margin-top:8px;font-size:12.5px}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  border:1px dashed var(--line);border-radius:var(--radius);background:rgba(255,255,255,.6);
  color:var(--muted);font-size:15px;text-align:center;padding:30px;
}
.empty-state .ico{width:34px;height:34px;border:2px solid var(--line);border-radius:10px;position:relative}
.empty-state .ico::after{content:"";position:absolute;left:8px;right:8px;top:11px;height:2px;background:var(--line);box-shadow:0 6px 0 var(--line)}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;
  gap:20px;padding:22px 4px;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover h3{color:#000}
.faq-item h3{font-size:17px;font-weight:800;color:var(--ink);line-height:1.6;transition:color .2s ease}
.faq-icon{
  flex:none;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;
  color:var(--ink);transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--lime);border-color:var(--lime)}
.faq-body{padding:0 46px 22px 4px;color:var(--muted);font-size:15.5px;line-height:1.85}
.faq-body a{color:var(--ink);font-weight:800;text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:3px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C9CEC2;padding:64px 0 26px;position:relative}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid #23261F}
.footer-brand .brand-main,.footer-brand .brand-sub{color:#F7F5EF}
.footer-brand p{font-size:14px;color:#8E9487;line-height:1.85;margin-top:14px;max-width:30em}
.footer-col h4{font-size:13px;font-weight:800;color:#F7F5EF;letter-spacing:.06em;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A7AD9E;transition:color .2s ease}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px}
.footer-bottom p{font-size:13px;color:#7C8274}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  border:1px solid #2A2E24;color:#C9CEC2;font-size:13px;font-weight:700;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.to-top:hover{border-color:var(--lime);color:var(--lime);background:rgba(199,255,60,.08)}

/* ============ 动效 ============ */
@keyframes riseIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.hero-copy > *{animation:riseIn .5s ease both}
.hero-copy > *:nth-child(2){animation-delay:.06s}
.hero-copy > *:nth-child(3){animation-delay:.12s}
.hero-copy > *:nth-child(4){animation-delay:.18s}
.hero-copy > *:nth-child(5){animation-delay:.24s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .card:hover,.step-card:hover,.milestone:hover,.reward-item:hover{transform:none!important}
  .card:hover .thumb img{transform:none!important}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media .frame{aspect-ratio:16/9}
  .hero-note{left:16px;bottom:-16px}
  .play-wrap{grid-template-columns:1fr;gap:30px}
  .play-sticky{position:static}
  .reward-layout{grid-template-columns:1fr;gap:26px}
  .news-main{grid-column:span 12}
  .news-side{grid-column:span 12;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .channel-nav{overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px;scrollbar-width:none}
  .channel-nav::-webkit-scrollbar{display:none}
  .nav-link{white-space:nowrap}
  .hot-chips{display:none}
  .icon-btn span{display:none}
  .menu-btn{display:inline-flex}
  .brand-actions .btn-sm{display:none}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
  .container{padding:0 16px}
  .hero{padding:40px 0 52px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .hero-stats dt{font-size:24px}
  .channel-grid{grid-template-columns:1fr}
  .channel-card{grid-template-columns:1fr}
  .channel-card .thumb{aspect-ratio:16/9}
  .milestone-grid{grid-template-columns:1fr}
  .reward-list{grid-template-columns:1fr}
  .news-side{grid-template-columns:1fr}
  .cta-band{padding:26px 22px;flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .faq-body{padding-right:8px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .search-panel{padding-top:56px}
  .search-form{flex-direction:column}
}
@media (max-width:520px){
  .brand-main{font-size:20px}
  .brand-sub{font-size:12px}
  .hero h1{font-size:2rem}
  .hero-cta .btn{flex:1 1 auto}
  .side-card{grid-template-columns:84px 1fr}
  .step-card{grid-template-columns:1fr;gap:10px}
  .step-num{font-size:26px}
}

/* roulang page: article */
:root{
  --ink:#11130F;
  --dark:#0D0F0C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --lime:#C7FF3C;
  --orange:#FF6B35;
  --graphite:#2B2E26;
  --muted:#6F7469;
  --line:#DAD6CA;
  --soft:#EFEDE3;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:10px;
  --shadow-card:0 1px 2px rgba(17,19,15,.04);
  --shadow-hover:0 12px 30px rgba(17,19,15,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--graphite);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;cursor:pointer;border:none;background:none}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,239,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(17,19,15,.09)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:inline-flex;align-items:baseline;line-height:1;letter-spacing:-.02em;font-weight:900}
.brand-main{font-size:23px;color:var(--ink);font-weight:900}
.brand-sub{font-size:14px;color:var(--muted);font-weight:700;margin-left:2px}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 15px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);font-size:13px;font-weight:600;color:var(--ink);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--lime);color:var(--ink);border:1.5px solid var(--lime)}
.btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px);box-shadow:0 10px 24px rgba(17,19,15,.16)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:8px}
.menu-btn{display:none;padding:8px 15px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:13px;font-weight:600}
.menu-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.channel-row{display:flex;align-items:center;gap:18px;border-top:1px solid var(--line);min-height:48px}
.channel-nav{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;padding:11px 14px;font-size:14px;font-weight:600;
  color:var(--graphite);white-space:nowrap;border-radius:8px;
  transition:background .2s ease,color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{background:var(--ink);color:#fff}
.nav-link.is-active::after{display:none}
.hot-chips{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.hot-chips::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--muted);white-space:nowrap;letter-spacing:.02em}
.chip{
  display:inline-block;padding:5px 13px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);font-size:12px;color:var(--graphite);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ===== 搜索面板 ===== */
.search-panel{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(13,15,12,.96);padding:40px 0;
}
.search-panel.is-open{display:block}
.search-inner{max-width:720px;margin:0 auto;padding:0 24px}
.search-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}
.search-top h3{color:#fff;font-size:19px;font-weight:800}
.search-close{padding:8px 16px;border:1px solid #3A3E33;border-radius:999px;color:#EDEBE2;font-size:13px}
.search-close:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.search-field{display:flex;gap:10px}
.search-field input{
  flex:1;padding:14px 18px;border-radius:12px;border:1px solid #3A3E33;
  background:#15180F;color:#F7F5EF;font-size:15px;
}
.search-field input::placeholder{color:#797E6F}
.search-field input:focus{border-color:var(--lime);outline:2px solid rgba(199,255,60,.4);outline-offset:0}
.search-hot{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.search-hot a{
  padding:7px 15px;border-radius:999px;border:1px solid #3A3E33;
  color:#CFD3C6;font-size:13px;
}
.search-hot a:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

/* ===== 文章头部 ===== */
.article-hero{padding:26px 0 8px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted)}
.crumbs a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:#C4BFB0}
.crumbs .current{color:var(--graphite);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:860px;margin-top:26px}
.cat-chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 15px;border-radius:999px;
  background:rgba(199,255,60,.35);border:1px solid rgba(150,196,34,.45);
  font-size:12.5px;font-weight:700;color:#3C4A14;letter-spacing:.02em;
}
.article-title{
  font-size:clamp(1.9rem,3.7vw,3.05rem);
  line-height:1.16;letter-spacing:-.02em;font-weight:900;
  color:var(--ink);margin:18px 0 20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--lime)}
.article-meta strong{color:var(--ink);font-weight:700}

/* ===== 文章主体布局 ===== */
.article-main{padding:36px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:52px;align-items:start}
.article-body{
  max-width:780px;font-size:17px;line-height:1.85;color:var(--graphite);
}
.article-body h2{
  font-size:clamp(1.35rem,2.2vw,1.72rem);line-height:1.32;font-weight:800;color:var(--ink);
  margin:2.1em 0 .75em;padding-left:14px;border-left:4px solid var(--lime);
}
.article-body h3{
  font-size:1.15rem;line-height:1.45;font-weight:800;color:var(--ink);margin:1.8em 0 .55em;
}
.article-body h4{font-size:1rem;font-weight:800;color:var(--ink);margin:1.5em 0 .5em}
.article-body p{margin:0 0 1.15em}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:#8FA82C}
.article-body blockquote{
  margin:1.6em 0;padding:14px 22px;border-left:3px solid var(--lime);
  background:var(--surface);border-radius:0 14px 14px 0;color:var(--graphite);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{
  color:var(--ink);font-weight:600;
  text-decoration:underline;text-decoration-color:var(--lime);
  text-decoration-thickness:2px;text-underline-offset:3px;
}
.article-body a:hover{background:rgba(199,255,60,.55)}
.article-body img{border-radius:16px;margin:1.5em 0;width:100%;height:auto;object-fit:cover}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px;text-align:center}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.article-body thead{background:var(--soft)}
.article-body th,.article-body td{
  padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;
}
.article-body th{font-weight:700;color:var(--ink);font-size:14px}
.article-body tr:last-child td{border-bottom:none}
.article-body code{
  background:var(--soft);padding:2px 6px;border-radius:6px;font-size:.92em;color:#3A401F;
}
.article-body strong{color:var(--ink);font-weight:800}

.empty-state{
  padding:64px 28px;text-align:center;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--soft);color:var(--muted);font-size:22px;
}
.empty-state h2{font-size:1.25rem;font-weight:800;color:var(--ink);margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

.article-foot{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.article-foot .note{font-size:13px;color:var(--muted);max-width:46ch;line-height:1.7}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.article-tags .chip{font-size:12.5px;padding:6px 14px}

/* ===== 侧栏 ===== */
.side-sticky{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:14px;letter-spacing:.01em}
.side-card p{font-size:13.5px;color:var(--muted);line-height:1.8}
.side-links{display:grid;gap:2px;margin-top:6px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;font-weight:600;color:var(--graphite);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.side-links a:hover{background:var(--soft);color:var(--ink);padding-left:16px}
.side-links a span{color:var(--muted);font-size:12px}
.side-media{border-radius:var(--radius-md);overflow:hidden;position:relative;border:1px solid var(--line)}
.side-media img{width:100%;height:168px;object-fit:cover}
.side-media .cap{
  position:absolute;inset:auto 0 0 0;padding:14px 18px;
  background:linear-gradient(180deg,rgba(13,15,12,0) 0%,rgba(13,15,12,.86) 100%);
  color:#F7F5EF;font-size:13.5px;font-weight:700;line-height:1.5;
}
.side-stat{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:4px}
.side-stat div{background:var(--soft);border-radius:12px;padding:12px 14px}
.side-stat b{display:block;font-size:20px;font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.side-stat small{font-size:12px;color:var(--muted)}

/* ===== 延伸阅读 ===== */
.rel-section{padding:0 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:900;color:var(--ink);letter-spacing:-.02em;line-height:1.25}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:52ch}
.link-more{font-size:14px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px}
.link-more:hover{background:var(--lime)}
.rel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;gap:16px;padding:16px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C7C2B2}
.rel-card img{width:108px;height:92px;border-radius:12px;object-fit:cover;flex:none;background:var(--line)}
.rel-card .rel-body{display:flex;flex-direction:column;gap:6px;min-width:0}
.rel-card .rel-cat{font-size:11.5px;font-weight:700;color:#4E5C1C;background:rgba(199,255,60,.4);border-radius:999px;padding:2px 10px;align-self:flex-start}
.rel-card h3{font-size:15.5px;font-weight:800;color:var(--ink);line-height:1.45}
.rel-card:hover h3{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:3px}
.rel-card .rel-desc{font-size:13px;color:var(--muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .rel-time{font-size:12px;color:#9A9E90;font-variant-numeric:tabular-nums}

/* ===== CTA ===== */
.cta-section{padding:0 0 84px}
.cta-band{
  background:var(--ink);color:var(--paper);border-radius:var(--radius-lg);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.3rem,2.3vw,1.75rem);font-weight:900;color:#fff;line-height:1.3;letter-spacing:-.01em}
.cta-band p{font-size:14px;color:#AFB4A5;margin-top:10px;max-width:56ch;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-ghost{color:#F7F5EF;border-color:#4A4F40}
.cta-actions .btn-ghost:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:#EDEBE2;padding:60px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:#9AA090}
.footer-brand p{color:#A8AD9F;font-size:14px;line-height:1.85;margin-top:16px;max-width:36ch}
.footer-col h4{font-size:13px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.06em}
.footer-col ul{display:grid;gap:11px;font-size:14px}
.footer-col a{color:#B9BEB2}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid #24271F;
  font-size:13px;color:#8E9387;
}
.to-top{
  padding:8px 16px;border:1px solid #34382D;border-radius:999px;
  color:#D8DBD0;font-size:13px;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

/* ===== 响应式 ===== */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-main{padding-bottom:56px}
}
@media (max-width:900px){
  .menu-btn{display:inline-flex}
  .hot-chips{display:none}
  .channel-row{display:none}
  body.menu-open .channel-row{display:block;padding:8px 0 14px;border-top:1px solid var(--line)}
  body.menu-open .channel-nav{flex-direction:column;align-items:stretch;gap:0}
  body.menu-open .nav-link{padding:12px 14px;border-radius:10px}
  body.menu-open .nav-link::after{display:none}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 24px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .brand-main{font-size:20px}
  .brand-sub{font-size:12.5px}
  .icon-btn span:last-child{display:none}
  .icon-btn{padding:9px 12px}
  .article-hero{padding:18px 0 4px}
  .article-title{margin:14px 0 16px}
  .article-body{font-size:16.5px;line-height:1.82}
  .article-body h2{margin-top:1.7em}
  .article-body table{font-size:14px;display:block;overflow-x:auto;white-space:nowrap}
  .article-foot{flex-direction:column;align-items:flex-start}
  .rel-card img{width:88px;height:78px}
  .footer-grid{gap:28px}
  .cta-band{border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .brand-main{font-size:18px}
  .brand-sub{font-size:12px}
  .brand-actions{gap:8px}
  .btn-sm{padding:7px 13px;font-size:12.5px}
  .footer-grid{grid-template-columns:1fr}
  .side-stat{grid-template-columns:1fr}
  .article-meta{font-size:12.5px;gap:8px 14px}
  .rel-card{flex-direction:column}
  .rel-card img{width:100%;height:150px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .rel-card:hover,.btn:hover,.icon-btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#11130F;
  --dark:#0D0F0C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --lime:#C7FF3C;
  --orange:#FF6B35;
  --graphite:#2B2E26;
  --muted:#6F7469;
  --line:#DAD6CA;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(17,19,15,.04);
  --shadow-2:0 12px 30px rgba(17,19,15,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--paper);
  color:var(--graphite);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
body .container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:24px}
@media (min-width:1536px){body .container{max-width:1240px}}
@media (max-width:640px){body .container{padding-inline:16px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,239,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(17,19,15,.09)}
.brand-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .brand-row{height:60px}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-size:21px;font-weight:900;letter-spacing:-.02em;color:var(--ink);line-height:1.1}
.brand-main{font-weight:900}
.brand-sub{font-size:.72em;font-weight:800;opacity:.82}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  font-size:13px;font-weight:700;color:var(--ink);
  transition:background .2s,color .2s,border-color .2s,transform .2s;
}
.icon-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.icon-btn span:first-child{font-size:14px;line-height:1}
.menu-btn{
  display:none;align-items:center;justify-content:center;height:40px;padding:0 16px;
  border:1px solid var(--ink);border-radius:var(--r-sm);font-size:13px;font-weight:800;color:var(--ink);
  transition:background .2s,color .2s;
}
.menu-btn:hover{background:var(--ink);color:var(--paper)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:800;letter-spacing:.01em;border:1.5px solid transparent;
  transition:background .2s,color .2s,border-color .2s,transform .2s;
}
.btn-primary{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--ink);border-color:var(--ink);color:var(--lime);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:9px}
.channel-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:46px;border-top:1px solid var(--line);
}
.channel-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;white-space:nowrap;padding:9px 12px;border-radius:8px;
  font-size:14px;font-weight:700;color:var(--graphite);
  transition:color .2s,background .2s;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{background:var(--ink);color:var(--paper)}
.nav-link.is-active::after{display:none}
.hot-chips{display:flex;align-items:center;gap:8px;flex-shrink:0}
.hot-label{font-size:12px;color:var(--muted);font-weight:700}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:12px;font-weight:700;
  color:var(--graphite);white-space:nowrap;transition:background .2s,color .2s,border-color .2s;
}
.chip:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ===== Search panel ===== */
.search-panel{position:fixed;inset:0;z-index:90;display:none;background:rgba(13,15,12,.6);padding:0 20px}
.search-panel.is-open{display:block}
.search-inner{
  max-width:720px;margin:11vh auto 0;background:var(--surface);
  border-radius:var(--r-lg);padding:28px;box-shadow:0 30px 60px rgba(13,15,12,.35);
}
.search-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.search-head h2{font-size:18px;font-weight:900;color:var(--ink)}
.search-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;font-weight:800;color:var(--ink);
  transition:background .2s,color .2s;
}
.search-close:hover{background:var(--ink);color:var(--paper)}
.search-form{display:flex;gap:10px;flex-wrap:wrap}
.search-input{
  flex:1 1 260px;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;font-size:15px;color:var(--ink);
  transition:border-color .2s,box-shadow .2s;
}
.search-input::placeholder{color:#A2A79A}
.search-input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.28)}
.search-tips{margin-top:18px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.search-tips span{font-size:12.5px;color:var(--muted);font-weight:700}

/* ===== Section base ===== */
.section{padding:72px 0}
@media (max-width:768px){.section{padding:48px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:28px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;
  letter-spacing:.12em;color:var(--muted);
  padding:5px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;
}
.h2{font-size:clamp(1.5rem,2.4vw,2.1rem);font-weight:900;color:var(--ink);letter-spacing:-.02em;line-height:1.25}
.h2 + .sub-lead{margin-top:10px}
.sub-lead{font-size:15px;color:var(--muted);line-height:1.85;max-width:640px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:800;color:var(--ink);
  padding-bottom:2px;border-bottom:2px solid var(--lime);transition:gap .2s,color .2s;
}
.link-more:hover{gap:12px}

/* ===== Page hero ===== */
.page-hero{position:relative;isolation:isolate;background:var(--dark);color:var(--paper);overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.52;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(102deg,rgba(13,15,12,.95) 0%,rgba(13,15,12,.82) 48%,rgba(13,15,12,.44) 100%);
}
.hero-inner{padding:40px 0 56px}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px;color:#C8C9BD;margin-bottom:24px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{opacity:.45}
.breadcrumb [aria-current="page"]{color:#fff;font-weight:800}
.hero-title{
  font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.1;font-weight:900;
  letter-spacing:-.02em;color:#fff;margin-bottom:16px;max-width:820px;
}
.hero-title .dot{color:var(--lime)}
.hero-sub{max-width:660px;font-size:16.5px;line-height:1.85;color:#E3E1D6;margin-bottom:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.stat{
  min-width:158px;padding:14px 18px;border-radius:14px;
  border:1px solid rgba(247,245,239,.2);background:rgba(13,15,12,.42);
}
.stat-num{font-size:26px;font-weight:900;color:var(--lime);line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat-label{font-size:12.5px;color:#C8C9BD;margin-top:6px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-actions .btn-ghost{border-color:#F7F5EF;color:#F7F5EF}
.hero-actions .btn-ghost:hover{background:#F7F5EF;color:var(--ink)}

/* ===== Focus grid ===== */
.focus-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
@media (max-width:960px){.focus-grid{grid-template-columns:1fr}}
.card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CBC6B6}
.card-media{position:relative;aspect-ratio:16/9;background:var(--line);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-badge{
  position:absolute;left:16px;top:16px;display:inline-flex;align-items:center;height:26px;
  padding:0 12px;border-radius:999px;background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:900;letter-spacing:.02em;
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-tag{align-self:flex-start;display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;background:rgba(199,255,60,.5);color:var(--ink);font-size:12px;font-weight:800}
.card-title{font-size:clamp(1.1rem,1.6vw,1.35rem);font-weight:900;line-height:1.4;color:var(--ink);letter-spacing:-.01em}
.card:hover .card-title{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:3px;text-underline-offset:5px}
.card-text{font-size:14.5px;line-height:1.85;color:var(--muted)}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted);
}
.card-meta strong{color:var(--ink);font-weight:800}
.mini-list{display:flex;flex-direction:column;gap:16px;height:100%}
.mini-card{
  display:grid;grid-template-columns:100px 1fr;gap:14px;padding:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CBC6B6}
.mini-thumb{width:100px;height:82px;border-radius:12px;overflow:hidden;background:var(--line)}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-title{font-size:15px;font-weight:800;line-height:1.55;color:var(--ink);margin-bottom:6px}
.mini-card:hover .mini-title{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:4px}
.mini-meta{font-size:12px;color:var(--muted)}

/* ===== Filter bar + brief list ===== */
.filter-bar{
  display:flex;align-items:center;gap:10px;overflow-x:auto;
  padding:4px 0 22px;scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13.5px;font-weight:800;color:var(--graphite);white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s,transform .2s;
}
.filter-chip:hover{border-color:var(--ink);transform:translateY(-1px)}
.filter-chip.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.filter-count{font-size:12.5px;color:var(--muted);margin-left:auto;white-space:nowrap}
.brief-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:860px){.brief-grid{grid-template-columns:1fr}}
.brief-card{
  display:grid;grid-template-columns:190px 1fr;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s;
}
.brief-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CBC6B6}
.brief-media{background:var(--line);overflow:hidden;min-height:158px}
.brief-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.brief-card:hover .brief-media img{transform:scale(1.03)}
.brief-body{padding:18px 20px;display:flex;flex-direction:column;gap:8px}
.brief-tag{
  align-self:flex-start;display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border-radius:999px;background:rgba(199,255,60,.42);color:var(--ink);font-size:11.5px;font-weight:900;
}
.brief-title{font-size:16px;font-weight:900;line-height:1.5;color:var(--ink)}
.brief-card:hover .brief-title{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:4px}
.brief-text{font-size:13.5px;color:var(--muted);line-height:1.75}
.brief-meta{margin-top:auto;font-size:12px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:640px){
  .brief-card{grid-template-columns:1fr}
  .brief-media{aspect-ratio:16/9;min-height:0}
}
.empty-note{
  display:none;padding:56px 24px;text-align:center;color:var(--muted);
  border:1px dashed var(--line);border-radius:var(--r-md);background:#fff;font-size:14px;
}
.empty-note.is-visible{display:block}

/* ===== Reading points ===== */
.split{display:grid;grid-template-columns:330px 1fr;gap:44px;align-items:start}
@media (max-width:920px){.split{grid-template-columns:1fr;gap:26px}}
.sticky-aside{position:sticky;top:120px}
@media (max-width:920px){.sticky-aside{position:static}}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
.aside-card h3{font-size:17px;font-weight:900;color:var(--ink);margin-bottom:12px}
.aside-card p{font-size:14px;color:var(--muted);line-height:1.85;margin-bottom:16px}
.aside-list{display:flex;flex-direction:column;gap:10px}
.aside-list li{
  display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--graphite);font-weight:700;
}
.aside-list li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--lime);flex-shrink:0}
.step-list{border-top:1px solid var(--line)}
.step-item{
  display:grid;grid-template-columns:66px 1fr;gap:18px;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.step-num{
  font-size:26px;font-weight:900;color:var(--ink);letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.step-tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:rgba(199,255,60,.45);color:var(--ink);font-size:11.5px;font-weight:900;margin-bottom:8px;
}
.step-item h3{font-size:17.5px;font-weight:900;color:var(--ink);margin-bottom:6px;line-height:1.45}
.step-item p{font-size:14.5px;color:var(--muted);line-height:1.85;max-width:640px}

/* ===== Rhythm / subscribe ===== */
.rhythm{
  background:var(--dark);color:var(--paper);border-radius:var(--r-lg);
  padding:38px;display:grid;grid-template-columns:1fr 380px;gap:36px;
}
@media (max-width:920px){.rhythm{grid-template-columns:1fr;padding:28px;gap:24px}}
.rhythm h2{font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:900;color:#fff;letter-spacing:-.02em;margin-bottom:12px}
.rhythm p{font-size:14.5px;color:#B9BDAF;line-height:1.85;max-width:560px}
.rhythm-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.rhythm-pill{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid #2A2E24;background:#171A14;font-size:12.5px;font-weight:700;color:#D7DACC;
}
.rhythm-pill b{color:var(--lime);font-variant-numeric:tabular-nums}
.rhythm-form{display:flex;flex-direction:column;gap:12px;background:#171A14;border:1px solid #2A2E24;border-radius:18px;padding:22px}
.rhythm-form h3{font-size:15px;font-weight:900;color:#F7F5EF}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:12.5px;font-weight:700;color:#A9AE9F}
.input{
  height:46px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid #2A2E24;background:#0F120E;color:#F7F5EF;font-size:14.5px;
  transition:border-color .2s,box-shadow .2s;
}
.input::placeholder{color:#7E8477}
.input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.2)}
.form-note{font-size:12px;color:#8F9487;line-height:1.7}
.form-tip{font-size:12.5px;color:var(--lime);min-height:18px;font-weight:700}

/* ===== FAQ ===== */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:20px 0;text-align:left;font-size:17px;font-weight:900;color:var(--ink);line-height:1.55;
}
.faq-q:hover{color:#000}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;font-weight:900;color:var(--ink);
  transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(180deg);background:var(--lime);border-color:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 0 22px;font-size:15px;color:var(--muted);line-height:1.85;max-width:740px}

/* ===== CTA band ===== */
.cta-band{
  background:var(--lime);border-radius:var(--r-lg);padding:38px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.35rem,2.3vw,1.9rem);font-weight:900;color:var(--ink);letter-spacing:-.02em;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:#31381A;line-height:1.8;max-width:600px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.cta-band .btn-primary:hover{background:#fff;color:var(--ink);border-color:var(--ink)}
.cta-band .btn-ghost{border-color:var(--ink);color:var(--ink)}
.cta-band .btn-ghost:hover{background:var(--ink);color:var(--lime)}

/* ===== Footer ===== */
.site-footer{background:var(--dark);color:#D9D8CE;padding:60px 0 24px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer .brand{color:#F7F5EF;font-size:20px}
.site-footer .brand-sub{color:#F7F5EF;opacity:.9}
.footer-brand p{font-size:13.5px;color:#A9AE9F;line-height:1.85;max-width:330px;margin-top:16px}
.footer-col h4{font-size:13px;font-weight:900;color:#F7F5EF;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:#A9AE9F;transition:color .2s}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid #24281F;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#8A8F82;
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:999px;
  border:1px solid #2A2E24;background:#171A14;color:#D9D8CE;font-size:12.5px;font-weight:800;
  transition:background .2s,color .2s,border-color .2s;
}
.to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

@media (max-width:1023px){
  .hot-chips{display:none}
}
@media (max-width:767px){
  .menu-btn{display:inline-flex}
  .icon-btn{padding:0 12px}
  .icon-btn span:last-child{display:none}
  .brand-row{height:64px}
  .site-header .container{position:relative}
  .channel-row{
    display:none;position:absolute;left:0;right:0;top:100%;height:auto;
    background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);padding:10px 0 16px;overflow:hidden;
  }
  .channel-row.is-open{display:block}
  .channel-row .container{display:block;padding-inline:0}
  .channel-nav{flex-direction:column;align-items:stretch;overflow:visible;gap:2px}
  .nav-link{padding:12px 16px;border-radius:0;font-size:15px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--ink);color:var(--paper);border-radius:0}
  .hero-inner{padding:32px 0 44px}
  .card-body{padding:20px}
  .stat{flex:1 1 44%;min-width:0}
  .search-inner{margin-top:8vh;padding:20px;border-radius:18px}
  .cta-band,.rhythm{padding:24px}
}
@media (max-width:419px){
  .brand{font-size:18px}
  .step-item{grid-template-columns:44px 1fr;gap:12px}
  .step-num{font-size:21px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .card:hover,.mini-card:hover,.brief-card:hover,.btn:hover{transform:none !important}
  .card:hover .card-media img,.brief-card:hover .brief-media img{transform:none !important}
}

/* roulang page: category2 */
:root{
    --ink:#11130F;
    --dark:#0D0F0C;
    --paper:#F7F5EF;
    --surface:#FFFFFF;
    --lime:#C7FF3C;
    --orange:#FF6B35;
    --graphite:#2B2E26;
    --muted:#6F7469;
    --line:#DAD6CA;
    --radius-lg:24px;
    --radius-md:16px;
    --radius-sm:10px;
    --shadow-1:0 1px 2px rgba(17,19,15,.04);
    --shadow-2:0 12px 30px rgba(17,19,15,.10);
    --gutter:24px;
  }
  *,*::before,*::after{box-sizing:border-box}
  .page-body{
    margin:0;
    background:var(--paper);
    color:var(--graphite);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
    font-size:17px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  body .container{
    width:100%;
    max-width:1240px;
    margin-inline:auto;
    padding-inline:var(--gutter);
  }
  .page-body a{color:inherit;text-decoration:none}
  .page-body img{display:block;max-width:100%}
  .page-body h1,.page-body h2,.page-body h3,.page-body h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
  .page-body p{margin:0}
  .page-body ul,.page-body ol{margin:0;padding:0;list-style:none}
  .num{font-variant-numeric:tabular-nums}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--lime);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ---------- 按钮体系 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 24px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
    border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
    transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  }
  .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
  .btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
  .btn-outline:hover{background:var(--ink);color:#F7F5EF;transform:translateY(-2px)}
  .btn-outline-light{background:transparent;color:#F7F5EF;border-color:rgba(247,245,239,.55)}
  .btn-outline-light:hover{background:#F7F5EF;color:var(--ink);border-color:#F7F5EF;transform:translateY(-2px)}
  .btn-sm{padding:9px 16px;font-size:14px}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease,background-color .25s ease;
  }
  .site-header.is-stuck{box-shadow:0 6px 20px rgba(17,19,15,.08);background:rgba(247,245,239,.97)}
  .brand-row{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    height:72px;transition:height .25s ease;
  }
  .site-header.is-stuck .brand-row{height:60px}
  .brand{display:inline-flex;align-items:baseline;gap:2px;line-height:1;color:var(--ink)}
  .brand-main{font-size:23px;font-weight:900;letter-spacing:-.03em}
  .brand-sub{font-size:16px;font-weight:800;letter-spacing:-.02em;opacity:.82}
  .brand-actions{display:flex;align-items:center;gap:10px}
  .icon-btn{
    display:inline-flex;align-items:center;gap:6px;
    padding:9px 14px;border-radius:999px;border:1px solid var(--line);
    background:var(--surface);color:var(--graphite);
    font-size:14px;font-weight:600;cursor:pointer;
    transition:border-color .18s ease,color .18s ease,background-color .18s ease;
  }
  .icon-btn:hover{border-color:var(--ink);color:var(--ink);background:#fff}
  .menu-btn{
    display:none;align-items:center;padding:9px 16px;border-radius:999px;
    border:1px solid var(--ink);background:var(--ink);color:#F7F5EF;
    font-size:14px;font-weight:700;cursor:pointer;
  }
  .channel-row{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    height:48px;border-top:1px solid var(--line);
    overflow:hidden;transition:height .25s ease,opacity .2s ease;
  }
  .site-header.is-stuck .channel-row{height:44px}
  .channel-nav{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none}
  .channel-nav::-webkit-scrollbar{display:none}
  .nav-link{
    position:relative;padding:9px 13px;border-radius:8px;
    font-size:15px;font-weight:600;color:var(--graphite);white-space:nowrap;
    transition:color .18s ease,background-color .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
    background:var(--lime);transform:scaleX(0);transform-origin:left;
    transition:transform .22s ease;
  }
  .nav-link:hover{color:var(--ink);background:rgba(199,255,60,.16)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{background:var(--ink);color:#F7F5EF}
  .nav-link.is-active::after{display:none}
  .hot-chips{display:flex;align-items:center;gap:8px;flex-shrink:0}
  .hot-label{font-size:12px;color:var(--muted);letter-spacing:.04em}
  .chip{
    display:inline-flex;align-items:center;gap:4px;
    padding:5px 12px;border-radius:999px;border:1px solid var(--line);
    background:var(--surface);color:var(--graphite);
    font-size:13px;font-weight:600;white-space:nowrap;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .chip:hover{background:var(--ink);color:#F7F5EF;border-color:var(--ink)}

  /* ---------- 搜索面板 ---------- */
  .search-panel{
    position:fixed;inset:0;z-index:90;
    background:rgba(13,15,12,.55);
    display:flex;align-items:flex-start;justify-content:center;
    padding:80px 16px 24px;
  }
  .search-panel[hidden]{display:none}
  .search-panel-inner{
    width:100%;max-width:680px;background:var(--surface);
    border-radius:var(--radius-lg);border:1px solid var(--line);
    box-shadow:var(--shadow-2);padding:24px;
  }
  .search-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .search-brand{font-size:15px;font-weight:800;color:var(--ink)}
  .search-form{display:flex;gap:10px}
  .search-input{
    flex:1;min-width:0;padding:13px 16px;border-radius:var(--radius-sm);
    border:1px solid var(--line);background:#fff;color:var(--graphite);
    font-size:15px;font-family:inherit;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search-input::placeholder{color:var(--muted)}
  .search-input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.45)}
  .search-hot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:18px}

  /* ---------- 移动抽屉 ---------- */
  .drawer-mask{position:fixed;inset:0;background:rgba(13,15,12,.5);z-index:80}
  .drawer-mask[hidden]{display:none}
  .mobile-drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:85;
    background:var(--surface);border-left:1px solid var(--line);
    padding:22px;overflow-y:auto;box-shadow:-12px 0 40px rgba(17,19,15,.18);
  }
  .mobile-drawer[hidden]{display:none}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .drawer-title{font-size:15px;font-weight:800;color:var(--ink)}
  .drawer-list{display:flex;flex-direction:column;gap:4px}
  .drawer-list a{
    padding:12px 14px;border-radius:10px;font-size:15px;font-weight:600;
    color:var(--graphite);border:1px solid transparent;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .drawer-list a:hover{background:rgba(199,255,60,.2);border-color:var(--line);color:var(--ink)}
  .drawer-list a.is-active{background:var(--ink);color:#F7F5EF}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:var(--dark);
    color:#F7F5EF;
  }
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    opacity:.45;
  }
  .hero-bg::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(13,15,12,.94) 0%,rgba(13,15,12,.78) 55%,rgba(13,15,12,.56) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding-block:56px 0}
  .crumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:rgba(247,245,239,.72);margin-bottom:26px;
  }
  .crumb a{color:rgba(247,245,239,.85);transition:color .18s ease}
  .crumb a:hover{color:var(--lime)}
  .crumb .sep{opacity:.5}
  .crumb [aria-current]{color:#F7F5EF;font-weight:600}
  .hero-tagline{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(199,255,60,.14);border:1px solid rgba(199,255,60,.42);
    color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.04em;
    margin-bottom:20px;
  }
  .hero-title{
    font-size:clamp(2.1rem,4.6vw,3.9rem);
    line-height:1.1;font-weight:900;letter-spacing:-.03em;
    color:#F7F5EF;max-width:18em;
  }
  .hero-sub{
    margin-top:20px;max-width:40em;
    font-size:17px;line-height:1.85;color:rgba(247,245,239,.82);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .stat-strip{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    gap:1px;margin-top:48px;
    border-top:1px solid rgba(247,245,239,.16);
    background:rgba(247,245,239,.16);
  }
  .stat-item{
    background:rgba(13,15,12,.55);
    padding:22px 20px 26px;
    display:flex;flex-direction:column;gap:4px;
  }
  .stat-num{
    font-size:32px;font-weight:900;line-height:1;letter-spacing:-.03em;
    color:var(--lime);font-variant-numeric:tabular-nums;
  }
  .stat-label{font-size:13px;color:rgba(247,245,239,.72)}

  /* ---------- 通用板块 ---------- */
  .section{padding-block:76px}
  .section-tight{padding-block:56px}
  .section-head{max-width:52em;margin-bottom:36px}
  .eyebrow{
    display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;
    color:var(--muted);text-transform:none;margin-bottom:12px;
  }
  .section-title{font-size:clamp(1.6rem,2.6vw,2.25rem);line-height:1.24}
  .section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);max-width:42em}

  /* ---------- 步骤区 ---------- */
  .guide-layout{
    display:grid;grid-template-columns:320px minmax(0,1fr);gap:56px;
    align-items:start;
  }
  .guide-side{position:sticky;top:130px}
  .side-title{font-size:26px;line-height:1.25;margin-top:4px}
  .side-text{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted);max-width:30em}
  .side-list{margin-top:24px;display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--line)}
  .side-list li{border-bottom:1px solid var(--line)}
  .side-list a{
    display:flex;align-items:center;gap:12px;padding:12px 2px;
    font-size:14px;font-weight:600;color:var(--graphite);
    transition:color .18s ease,padding-left .18s ease;
  }
  .side-list a:hover{color:var(--ink);padding-left:8px}
  .side-list .idx{
    font-size:12px;font-weight:800;color:var(--muted);
    font-variant-numeric:tabular-nums;min-width:22px;
  }
  .side-note{
    margin-top:24px;padding:16px 18px;border-radius:var(--radius-md);
    background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
    font-size:14px;line-height:1.8;color:var(--muted);
  }
  .side-note strong{color:var(--ink)}

  .step-list{display:flex;flex-direction:column}
  .step-item{
    display:grid;grid-template-columns:68px minmax(0,1fr) 230px;
    gap:28px;align-items:start;
    padding-block:34px;
    border-top:1px solid var(--line);
  }
  .step-item:first-child{border-top:none;padding-top:0}
  .step-num{
    font-size:40px;font-weight:900;line-height:1;letter-spacing:-.04em;
    color:var(--ink);font-variant-numeric:tabular-nums;
    padding-top:2px;
  }
  .step-num::after{
    content:"";display:block;width:26px;height:3px;border-radius:2px;
    background:var(--lime);margin-top:12px;
  }
  .step-tag{
    display:inline-block;padding:4px 11px;border-radius:999px;
    background:rgba(199,255,60,.3);border:1px solid rgba(17,19,15,.1);
    font-size:12px;font-weight:700;color:var(--ink);margin-bottom:12px;
  }
  .step-title{font-size:22px;line-height:1.36}
  .step-text{margin-top:12px;font-size:16px;line-height:1.85;color:var(--graphite);max-width:34em}
  .step-points{margin-top:16px;display:flex;flex-direction:column;gap:8px}
  .step-points li{
    position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--muted);
  }
  .step-points li::before{
    content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
    border-radius:50%;background:var(--ink);
  }
  .step-figure{
    margin:0;border-radius:var(--radius-md);overflow:hidden;
    border:1px solid var(--line);background:#EFEDE4;
    box-shadow:var(--shadow-1);
  }
  .step-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    transition:transform .28s ease;
  }
  .step-figure:hover img{transform:scale(1.03)}
  .step-figure figcaption{
    padding:10px 12px;font-size:12px;line-height:1.6;color:var(--muted);background:#fff;
  }

  /* ---------- 卡点清单 ---------- */
  .pitfall-section{background:#EFEDE4;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .pitfall-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .pitfall-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
    padding:24px 22px;box-shadow:var(--shadow-1);
    display:flex;flex-direction:column;gap:10px;
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .pitfall-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
  .pitfall-badge{
    align-self:flex-start;padding:4px 10px;border-radius:999px;
    background:rgba(255,107,53,.12);border:1px solid rgba(255,107,53,.4);
    color:#B23E12;font-size:12px;font-weight:800;
  }
  .pitfall-card h3{font-size:18px;line-height:1.4}
  .pitfall-card p{font-size:15px;line-height:1.8;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:880px;margin-inline:auto;border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
    padding:22px 2px;cursor:pointer;list-style:none;
    font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;
    transition:color .18s ease;
  }
  .faq-q::-webkit-details-marker{display:none}
  .faq-q:hover{color:#3F4A22}
  .faq-icon{
    flex-shrink:0;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--line);background:#fff;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:700;color:var(--ink);
    transition:transform .25s ease,background-color .25s ease,border-color .25s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime)}
  .faq-a{padding:0 2px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:44em}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--ink);color:#F7F5EF;
    border-radius:var(--radius-lg);
    padding:44px clamp(24px,4vw,52px);
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    flex-wrap:wrap;
    position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
    border-radius:50%;border:26px solid rgba(199,255,60,.14);
    pointer-events:none;
  }
  .cta-copy{position:relative;z-index:2;max-width:38em}
  .cta-copy h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.3;color:#F7F5EF}
  .cta-copy p{margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(247,245,239,.78)}
  .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--dark);color:#F7F5EF;margin-top:0}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
    padding-block:60px 40px;
  }
  .footer-brand .brand{color:#F7F5EF}
  .footer-brand .brand-main{font-size:21px}
  .footer-brand .brand-sub{font-size:15px}
  .footer-brand p{
    margin-top:16px;font-size:14px;line-height:1.85;color:rgba(247,245,239,.66);max-width:26em;
  }
  .footer-col h4{
    font-size:14px;font-weight:800;color:#F7F5EF;letter-spacing:.02em;margin-bottom:14px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{
    font-size:14px;color:rgba(247,245,239,.7);
    transition:color .18s ease;
  }
  .footer-col a:hover{color:var(--lime)}
  .footer-bottom{
    border-top:1px solid rgba(247,245,239,.14);
    padding-block:20px 26px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  }
  .footer-bottom p{font-size:13px;color:rgba(247,245,239,.58)}
  .to-top{
    background:transparent;border:1px solid rgba(247,245,239,.35);
    color:#F7F5EF;font-size:13px;font-weight:600;
    padding:8px 16px;border-radius:999px;cursor:pointer;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .guide-layout{grid-template-columns:1fr;gap:32px}
    .guide-side{position:static}
    .side-list{display:none}
    .step-item{grid-template-columns:56px minmax(0,1fr);gap:20px}
    .step-figure{grid-column:2;max-width:420px;margin-top:6px}
    .pitfall-grid{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  }
  @media (max-width:900px){
    .hot-chips{display:none}
    .channel-row{display:none}
    .menu-btn{display:inline-flex}
    .site-header.is-stuck .brand-row{height:58px}
  }
  @media (max-width:768px){
    :root{--gutter:16px}
    .page-body{font-size:16px}
    .section{padding-block:52px}
    .section-tight{padding-block:44px}
    .hero-inner{padding-block:40px 0}
    .hero-sub{font-size:15.5px}
    .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:36px}
    .stat-num{font-size:26px}
    .step-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding-block:26px}
    .step-num{font-size:30px}
    .step-title{font-size:19px}
    .step-text{font-size:15px}
    .step-figure{grid-column:1 / -1;max-width:none}
    .pitfall-grid{grid-template-columns:1fr}
    .cta-band{padding:32px 22px}
    .footer-grid{grid-template-columns:1fr 1fr;padding-block:44px 28px}
    .footer-brand{grid-column:1 / -1}
    .faq-q{font-size:16px;padding:18px 2px}
  }
  @media (max-width:520px){
    .brand-main{font-size:20px}
    .brand-sub{font-size:13.5px}
    .icon-btn{padding:8px 12px}
    .icon-btn span:last-child{display:none}
    .hero-title{font-size:1.9rem}
    .hero-actions .btn{flex:1 1 auto}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;align-items:flex-start}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    .step-figure:hover img{transform:none}
    .pitfall-card:hover{transform:none}
    .btn:hover{transform:none}
  }

/* roulang page: category3 */
:root{
  --ink:#11130F;
  --dark:#0D0F0C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --lime:#C7FF3C;
  --orange:#FF6B35;
  --graphite:#2B2E26;
  --muted:#6F7469;
  --line:#DAD6CA;
  --dark-card:#171A14;
  --dark-line:#2A2E24;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-soft:0 1px 2px rgba(17,19,15,.04);
  --shadow-lift:0 12px 30px rgba(17,19,15,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  background:var(--paper);
  color:var(--graphite);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;font-weight:900;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

body .container{
  width:100%;
  max-width:1240px;
  margin-left:auto;
  margin-right:auto;
  padding-left:16px;
  padding-right:16px;
}
@media (min-width:1024px){
  body .container{padding-left:24px;padding-right:24px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(17,19,15,.09);}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .brand-row{height:58px;}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  color:var(--ink);
  text-decoration:none;
  white-space:nowrap;
}
.brand-main{font-size:22px;font-weight:900;letter-spacing:-.03em;}
.brand-sub{font-size:15px;font-weight:800;letter-spacing:-.01em;}
.site-header.is-scrolled .brand-main{font-size:20px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  color:var(--ink);
  font-size:14px;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:800;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-light{background:transparent;color:#F7F5EF;border-color:rgba(247,245,239,.55);}
.btn-light:hover{background:#F7F5EF;color:var(--ink);border-color:#F7F5EF;transform:translateY(-2px);}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:8px;}
.menu-btn{
  display:none;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
}
.channel-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:6px 0 10px;
  border-top:1px solid var(--line);
}
.channel-nav{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none;}
.nav-link{
  position:relative;
  padding:8px 13px;
  border-radius:8px;
  font-size:15px;
  font-weight:600;
  color:var(--graphite);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:4px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:var(--ink);color:#fff;}
.nav-link.is-active::after{transform:scaleX(0);}
.hot-chips{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;}
.hot-chips::-webkit-scrollbar{display:none;}
.hot-label{font-size:12px;color:var(--muted);white-space:nowrap;}
.chip{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  color:var(--graphite);
  font-size:13px;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.chip-lime{background:#EEFFC7;border-color:#D7EE8E;color:var(--ink);font-weight:700;}
.chip-lime:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  padding:20px 0 26px;
  transform:translateY(-108%);
  transition:transform .28s ease;
  box-shadow:0 20px 40px rgba(17,19,15,.14);
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:999px;
  padding:6px 14px;
  font-size:14px;
  cursor:pointer;
}
.drawer-links{display:grid;gap:6px;}
.drawer-links a{
  display:block;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--surface);
  font-weight:700;
  color:var(--ink);
}
.drawer-links a.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* 搜索面板 */
.search-panel{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
  background:rgba(13,15,12,.72);
  padding:80px 16px;
}
.search-panel.is-open{display:block;}
.search-box{
  max-width:680px;
  margin:0 auto;
  background:var(--paper);
  border-radius:var(--radius-lg);
  padding:28px;
  border:1px solid var(--line);
}
.search-box h3{font-size:20px;margin-bottom:14px;}
.search-input{
  width:100%;
  padding:13px 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:#fff;
  font-size:16px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-input:focus{border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.35);outline:none;}
.search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.search-close{
  margin-top:20px;
  border:1.5px solid var(--ink);
  background:transparent;
  color:var(--ink);
  border-radius:8px;
  padding:9px 20px;
  font-weight:700;
  cursor:pointer;
}
.search-close:hover{background:var(--ink);color:#fff;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--muted);
  padding:18px 0 0;
  flex-wrap:wrap;
}
.crumb a{color:var(--muted);transition:color .2s ease;}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:#B9B4A4;}
.crumb .now{color:var(--ink);font-weight:700;}

/* ============ Hero ============ */
.hero-dark{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  color:#F7F5EF;
  margin-top:16px;
  border-radius:var(--radius-lg);
}
.hero-dark .hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.3;
}
.hero-dark .hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(13,15,12,.96) 8%,rgba(13,15,12,.78) 52%,rgba(13,15,12,.5) 100%);
}
.hero-inner{position:relative;padding:52px 26px 44px;}
@media (min-width:768px){.hero-inner{padding:68px 48px 54px;}}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(199,255,60,.5);
  color:var(--lime);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.04em;
}
.hero-inner h1{
  color:#F7F5EF;
  font-size:clamp(2rem,4.4vw,3.5rem);
  line-height:1.12;
  margin-top:18px;
  max-width:18em;
}
.hero-inner h1 em{font-style:normal;color:var(--lime);}
.hero-lead{
  margin-top:16px;
  color:#C3C7B8;
  font-size:16.5px;
  line-height:1.85;
  max-width:44ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:38px;
  padding-top:24px;
  border-top:1px solid rgba(247,245,239,.16);
}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}}
.stat-num{
  font-size:30px;
  font-weight:900;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-label{font-size:12.5px;color:#9BA08F;margin-top:4px;}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:84px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.15rem);}
.section-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:52ch;line-height:1.85;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--muted);
  margin-bottom:10px;
}

/* 奖励清单卡 */
.reward-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  padding:24px;
}
@media (min-width:768px){.reward-main{padding:30px;}}
.reward-list{display:grid;gap:14px;}
.reward-item{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:14px;
  padding:16px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:#FCFBF7;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.reward-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:#C9C3B0;}
.reward-no{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--ink);
  color:var(--lime);
  font-weight:900;
  font-size:15px;
  font-variant-numeric:tabular-nums;
}
.reward-title{font-size:16.5px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.reward-desc{font-size:13.5px;color:var(--muted);margin-top:4px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:999px;
  font-size:11.5px;
  font-weight:700;
  border:1px solid var(--line);
  background:#fff;
  color:var(--graphite);
}
.tag-lime{background:#EEFFC7;border-color:#D7EE8E;color:#3C4A0C;}
.tag-orange{background:#FFEDE5;border-color:#FFC8B2;color:#A63A11;}
.mini-track{height:6px;background:#EDEAE0;border-radius:999px;margin-top:10px;overflow:hidden;}
.mini-fill{height:100%;background:var(--ink);border-radius:999px;}
.mini-fill.is-lime{background:var(--lime);}

/* 侧栏小卡 */
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:22px;
  box-shadow:var(--shadow-soft);
}
.side-card + .side-card{margin-top:20px;}
.progress-track{height:10px;background:#EDEAE0;border-radius:999px;overflow:hidden;}
.progress-fill{height:100%;width:78%;background:var(--lime);border-radius:999px;transition:width .6s ease;}
.progress-meta{display:flex;justify-content:space-between;align-items:baseline;margin-top:10px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.big-num{font-size:38px;font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.05;letter-spacing:-.03em;}
.side-thumb{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);}
.side-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease;}
.side-thumb:hover img{transform:scale(1.03);}

/* 里程碑深色区 */
.milestone-section{background:var(--dark);color:#F7F5EF;}
.milestone-section h2{color:#F7F5EF;}
.milestone-section .section-sub{color:#9BA08F;}
.mile-progress{background:rgba(247,245,239,.14);height:12px;border-radius:999px;overflow:hidden;}
.mile-progress span{display:block;height:100%;width:78%;background:var(--lime);border-radius:999px;transition:width .6s ease;}
.mile-grid{display:grid;gap:18px;grid-template-columns:1fr;margin-top:28px;}
@media (min-width:768px){.mile-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.mile-card{
  background:var(--dark-card);
  border:1px solid var(--dark-line);
  border-radius:var(--radius-md);
  padding:22px;
  transition:border-color .22s ease,transform .22s ease;
}
.mile-card:hover{transform:translateY(-3px);border-color:#3E4433;}
.mile-card .mile-num{font-size:28px;font-weight:900;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.mile-card h3{color:#F7F5EF;font-size:17px;margin-top:6px;}
.mile-card p{color:#9BA08F;font-size:13.5px;line-height:1.8;margin-top:8px;}
.mile-state{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:700;border:1px solid rgba(247,245,239,.28);color:#C3C7B8;
}
.mile-state.done{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.mile-state.now{background:rgba(199,255,60,.14);color:var(--lime);border-color:rgba(199,255,60,.55);}
.mile-note{margin-top:24px;font-size:13px;color:#8E9387;}
.mile-note a{color:var(--lime);text-decoration:underline;text-underline-offset:3px;}

/* FAQ */
.faq-wrap{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:1024px){.faq-wrap{grid-template-columns:0.8fr 1.2fr;gap:56px;}}
.faq-sticky{position:relative;}
@media (min-width:1024px){.faq-sticky{position:sticky;top:110px;align-self:start;}}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 2px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:17px;
  font-weight:800;
  color:var(--ink);
  line-height:1.5;
}
.faq-q .plus{
  flex:0 0 auto;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:50%;
  font-size:16px;
  color:var(--ink);
  background:#fff;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.is-open .faq-q .plus{transform:rotate(180deg);background:var(--ink);color:var(--lime);border-color:var(--ink);}
.faq-a{display:none;padding:0 2px 22px;font-size:15.5px;color:var(--muted);line-height:1.85;max-width:60ch;}
.faq-item.is-open .faq-a{display:block;}

/* CTA */
.cta-band{
  background:var(--lime);
  border-radius:var(--radius-lg);
  padding:36px 26px;
  display:flex;
  flex-direction:column;
  gap:22px;
  align-items:flex-start;
  justify-content:space-between;
}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;padding:44px 48px;}
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);color:var(--ink);}
.cta-band p{color:#3C4A0C;font-size:15px;margin-top:10px;max-width:52ch;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-dark{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-dark:hover{background:#000;color:var(--lime);transform:translateY(-2px);}
.btn-line-dark{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-line-dark:hover{background:var(--ink);color:var(--lime);transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#F7F5EF;padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.site-footer .brand{color:#F7F5EF;}
.site-footer .brand-main{font-size:21px;}
.site-footer .brand-sub{font-size:14px;color:#F7F5EF;}
.footer-brand p{color:#9BA08F;font-size:14px;line-height:1.9;margin-top:14px;max-width:36ch;}
.footer-col h4{color:#F7F5EF;font-size:14px;font-weight:800;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:#9BA08F;font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--dark-line);
  font-size:13px;color:#8E9387;
}
.to-top{
  border:1px solid var(--dark-line);
  background:transparent;
  color:#F7F5EF;
  border-radius:999px;
  padding:8px 18px;
  font-size:13px;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);animation:rise .55s ease forwards;}
.reveal.d1{animation-delay:.06s;}
.reveal.d2{animation-delay:.14s;}
.reveal.d3{animation-delay:.22s;}
@keyframes rise{to{opacity:1;transform:translateY(0);}}

@media (max-width:899px){
  .hot-chips{display:none;}
  .menu-btn{display:inline-flex;}
  .channel-row{display:none;}
  .icon-btn span:last-child{display:none;}
  .icon-btn{padding:8px 11px;}
}
@media (max-width:520px){
  .brand-main{font-size:19px;}
  .brand-sub{font-size:13px;}
  .hero-actions .btn{flex:1 1 auto;}
  .reward-item{grid-template-columns:36px 1fr;gap:12px;padding:14px;}
  .reward-no{width:36px;height:36px;font-size:13px;border-radius:10px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#11130F;
  --dark:#0D0F0C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --lime:#C7FF3C;
  --orange:#FF6B35;
  --graphite:#2B2E26;
  --muted:#6F7469;
  --line:#DAD6CA;
  --tint:#F1EEE4;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(17,19,15,.04);
  --shadow-2:0 12px 30px rgba(17,19,15,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--graphite);
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
dl,dd,dt{margin:0;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.22;}
p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background .25s ease;}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(17,19,15,.08);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;transition:min-height .25s ease;}
.site-header.is-stuck .brand-row{min-height:62px;}
.brand{display:inline-flex;align-items:baseline;gap:1px;font-weight:900;letter-spacing:-.03em;color:var(--ink);}
.brand-main{font-size:23px;line-height:1;}
.brand-sub{font-size:15px;font-weight:800;line-height:1;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:1.5px solid var(--line);border-radius:9px;font-size:14px;background:var(--surface);color:var(--graphite);transition:border-color .2s ease,color .2s ease,transform .2s ease;}
.icon-btn:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px);}
.menu-btn{display:none;align-items:center;gap:6px;padding:8px 14px;border:1.5px solid var(--line);border-radius:9px;font-size:14px;background:var(--surface);color:var(--graphite);}
.menu-btn:hover{border-color:var(--ink);}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding:4px 0;transition:padding .25s ease;}
.channel-nav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.nav-link{position:relative;display:inline-block;padding:9px 13px;border-radius:8px;font-size:15px;white-space:nowrap;color:var(--graphite);transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:#ECE9DF;color:var(--ink);}
.nav-link.is-active{background:var(--ink);color:#FFFFFF;}
.hot-chips{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.hot-label{font-size:12.5px;color:var(--muted);white-space:nowrap;}
.chip{display:inline-block;padding:4px 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:12.5px;color:var(--graphite);transition:background .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap;}
.chip:hover{background:var(--ink);color:#FFFFFF;border-color:var(--ink);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border:1.5px solid transparent;border-radius:var(--radius-sm);font-size:15.5px;font-weight:800;line-height:1.2;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;}
.btn-primary{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.btn-primary:hover{background:var(--ink);border-color:var(--ink);color:var(--lime);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px;}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:#FFFFFF;transform:translateY(-2px);}
.btn-outline-light{border-color:rgba(247,245,239,.55);color:#F7F5EF;background:transparent;}
.btn-outline-light:hover{background:#F7F5EF;border-color:#F7F5EF;color:var(--ink);transform:translateY(-2px);}
.btn-dark{background:var(--ink);border-color:var(--ink);color:var(--lime);}
.btn-dark:hover{background:#1F2318;transform:translateY(-2px);}

/* 页面首屏 */
.page-hero{position:relative;overflow:hidden;background:var(--dark);color:#F7F5EF;padding:56px 0 52px;}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4;}
.page-hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,15,12,.95) 10%,rgba(13,15,12,.78) 52%,rgba(13,15,12,.5) 100%);}
.page-hero-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:rgba(247,245,239,.66);margin-bottom:22px;}
.breadcrumb a{color:rgba(247,245,239,.82);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{color:rgba(247,245,239,.4);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border:1px solid rgba(199,255,60,.5);border-radius:999px;color:var(--lime);font-size:12.5px;letter-spacing:.04em;}
.page-hero h1{color:#FFFFFF;font-size:clamp(2rem,4.4vw,3.2rem);margin:18px 0 14px;letter-spacing:-.03em;}
.lede{max-width:660px;color:rgba(247,245,239,.84);font-size:16.5px;line-height:1.85;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{margin-top:38px;padding-top:22px;border-top:1px solid rgba(247,245,239,.18);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.hero-stats dt{font-size:12.5px;color:rgba(247,245,239,.6);}
.hero-stats dd{margin-top:4px;font-size:26px;font-weight:900;color:#FFFFFF;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* 通用板块 */
.section{padding:78px 0;}
.section-tint{background:var(--tint);}
.section-head{max-width:720px;}
.section-head h2{font-size:clamp(1.5rem,2.5vw,2.05rem);}
.section-head p{margin-top:10px;color:var(--muted);font-size:15.5px;line-height:1.85;}

/* 主体两栏 */
.split-layout{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);gap:42px;align-items:start;}

/* 筛选 */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 30px;}
.filter-chip{padding:8px 15px;border:1.5px solid var(--line);border-radius:999px;background:var(--surface);font-size:13.5px;font-weight:600;color:var(--graphite);transition:background .2s ease,color .2s ease,border-color .2s ease;}
.filter-chip:hover{border-color:var(--ink);color:var(--ink);}
.filter-chip.is-active{background:var(--ink);border-color:var(--ink);color:#FFFFFF;}

/* 时间轴 */
.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:var(--line);}
.tl-item{position:relative;margin-bottom:22px;}
.tl-item:last-child{margin-bottom:0;}
.tl-item::before{content:"";position:absolute;left:-30px;top:26px;width:12px;height:12px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px var(--paper),0 0 0 4px var(--line);}
.tl-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px 26px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.tl-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:12px;}
.ver-no{font-size:28px;font-weight:900;letter-spacing:-.03em;color:var(--ink);font-variant-numeric:tabular-nums;}
.tl-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:700;background:#EFFBD6;color:#3B4A12;border:1px solid #D9EEA9;}
.tag-orange{background:#FFEDE5;color:#8C3413;border-color:#FFD2BE;}
.tl-card p{font-size:15.5px;line-height:1.8;color:var(--graphite);}
.tl-points{margin-top:14px;display:grid;gap:7px;}
.tl-points li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.7;color:var(--muted);}
.tl-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 1px #9BC72A;}
.link-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:700;color:var(--ink);border-bottom:1.5px solid var(--lime);padding-bottom:2px;transition:color .2s ease,border-color .2s ease;}
.link-more:hover{color:#4B5A17;border-color:var(--ink);}
.tl-empty{margin-top:18px;padding:34px 20px;border:1px dashed var(--line);border-radius:var(--radius-md);text-align:center;color:var(--muted);font-size:14.5px;background:var(--surface);}

/* 侧栏 */
.side-sticky{position:sticky;top:104px;display:grid;gap:18px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:16.5px;margin-bottom:12px;}
.index-list li + li{margin-top:5px;}
.index-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--graphite);transition:background .2s ease,color .2s ease;}
.index-list a:hover{background:#F1EEE4;color:var(--ink);}
.idx-ver{font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.idx-date{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.side-card-dark{background:var(--dark);border-color:#262A20;color:#E9E6DC;}
.side-card-dark h3{color:#F7F5EF;}
.side-card-dark p{color:rgba(247,245,239,.72);font-size:14px;line-height:1.8;}
.progress-track{height:9px;border-radius:999px;background:#2A2E24;overflow:hidden;margin:14px 0 8px;}
.progress-fill{height:100%;width:68%;background:var(--lime);border-radius:999px;transition:width .6s ease;}
.progress-meta{display:flex;justify-content:space-between;font-size:12.5px;color:rgba(247,245,239,.6);font-variant-numeric:tabular-nums;}
.form-inline{display:flex;gap:8px;margin-top:12px;}
.input{flex:1;min-width:0;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#FFFFFF;font-size:14px;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;}
.input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.45);}
.hint{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.7;}
.form-msg{margin-top:10px;font-size:13px;color:#3B4A12;background:#EFFBD6;border:1px solid #D9EEA9;border-radius:8px;padding:8px 10px;display:none;}
.form-msg.is-visible{display:block;}

/* 本次要点 */
.highlight-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:34px;}
.hl-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;display:flex;gap:16px;align-items:flex-start;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;}
.hl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.hl-num{flex-shrink:0;padding:4px 9px;border-radius:8px;background:var(--lime);color:var(--ink);font-size:14px;font-weight:900;font-variant-numeric:tabular-nums;}
.hl-card h3{font-size:18px;margin-bottom:8px;}
.hl-card p{font-size:14.8px;color:var(--muted);line-height:1.8;}
.hl-media{grid-column:1 / -1;display:grid;grid-template-columns:1.05fr .95fr;padding:0;overflow:hidden;align-items:stretch;}
.hl-media img{width:100%;height:100%;object-fit:cover;min-height:240px;background:var(--line);}
.hl-body{padding:28px;}
.hl-body h3{font-size:20px;margin-bottom:10px;}
.hl-body p{font-size:15px;color:var(--muted);}

/* 更新流程 */
.milestone-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:32px;}
.ms-card{border:1px solid var(--line);border-radius:18px;padding:24px;background:var(--surface);box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;}
.ms-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.ms-step{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--muted);}
.ms-card h3{font-size:18px;margin:8px 0 10px;}
.ms-card p{font-size:14.8px;color:var(--muted);line-height:1.8;}
.ms-card.is-current{background:var(--ink);border-color:var(--ink);}
.ms-card.is-current .ms-step{color:var(--lime);}
.ms-card.is-current h3{color:#FFFFFF;}
.ms-card.is-current p{color:rgba(247,245,239,.78);}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-list{margin-top:28px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 4px;font-size:16.5px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;transition:color .2s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:#47510F;}
.faq-icon{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;flex-shrink:0;border:1.5px solid var(--line);border-radius:50%;font-size:16px;line-height:1;color:var(--ink);transition:transform .25s ease,background .2s ease,border-color .2s ease;}
.faq-item summary:hover .faq-icon{border-color:var(--ink);}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime);}
.faq-body{padding:0 4px 20px;color:var(--muted);font-size:15.5px;line-height:1.85;}

/* CTA 条 */
.cta-band{background:var(--lime);padding:48px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,1.9rem);color:var(--ink);}
.cta-inner p{color:#3A4413;font-size:15px;margin-top:6px;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(247,245,239,.78);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:36px;border-bottom:1px solid #2A2E24;}
.footer-brand .brand{color:#F7F5EF;}
.footer-brand .brand-main{font-size:22px;}
.footer-brand .brand-sub{font-size:14px;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(247,245,239,.66);max-width:340px;}
.footer-col h4{font-size:14px;color:#F7F5EF;margin-bottom:14px;font-weight:800;}
.footer-col li + li{margin-top:8px;}
.footer-col a{font-size:14px;color:rgba(247,245,239,.72);transition:color .2s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;font-size:13px;color:rgba(247,245,239,.55);}
.to-top{border:1px solid #383D2E;border-radius:8px;padding:7px 13px;font-size:13px;color:#F7F5EF;transition:background .2s ease,color .2s ease,border-color .2s ease;}
.to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);}

/* 移动抽屉与搜索面板 */
.mobile-drawer{position:fixed;inset:0;z-index:80;display:none;background:rgba(13,15,12,.55);}
.mobile-drawer.is-open{display:block;}
.drawer-panel{position:absolute;right:0;top:0;height:100%;width:min(86vw,340px);background:var(--paper);padding:22px;overflow-y:auto;box-shadow:-12px 0 30px rgba(13,15,12,.25);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.drawer-close{width:36px;height:36px;border:1.5px solid var(--line);border-radius:9px;font-size:18px;line-height:1;color:var(--ink);}
.drawer-close:hover{border-color:var(--ink);}
.drawer-nav a{display:block;padding:12px 10px;border-radius:10px;font-size:16px;font-weight:600;color:var(--ink);transition:background .2s ease,color .2s ease;}
.drawer-nav a:hover{background:#ECE9DF;}
.drawer-nav a.is-active{background:var(--ink);color:#FFFFFF;}
.search-panel{position:fixed;inset:0;z-index:90;display:none;background:rgba(13,15,12,.62);padding:80px 20px;}
.search-panel.is-open{display:block;}
.search-box{max-width:640px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow-2);}
.search-box h2{font-size:18px;margin-bottom:12px;}
.search-row{display:flex;gap:8px;}
.search-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* 响应式 */
@media (max-width:1023px){
  .hot-chips{display:none;}
  .split-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .highlight-grid{grid-template-columns:minmax(0,1fr);}
  .hl-media{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .menu-btn{display:inline-flex;}
  .brand-actions .btn-primary{display:none;}
  .brand-main{font-size:19px;}
  .brand-sub{font-size:12.5px;}
  .brand-row{min-height:62px;}
  .nav-link{font-size:14px;padding:8px 11px;}
  .page-hero{padding:40px 0 40px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .hero-stats dd{font-size:22px;}
  .timeline{padding-left:24px;}
  .tl-item::before{left:-24px;top:22px;}
  .timeline::before{left:5px;}
  .tl-card{padding:20px 18px;border-radius:16px;}
  .ver-no{font-size:23px;}
  .milestone-row{grid-template-columns:minmax(0,1fr);}
  .hl-media img{min-height:190px;}
  .hl-body{padding:22px;}
  .cta-band{padding:38px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-brand{grid-column:1 / -1;}
  .btn{width:auto;}
}
@media (max-width:520px){
  .icon-btn span:last-child{display:none;}
  .icon-btn{padding:8px 10px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .search-panel{padding:64px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .tl-card:hover,.hl-card:hover,.ms-card:hover,.btn:hover{transform:none;}
}

/* roulang page: category5 */
:root{
    --ink:#11130F;
    --dark:#0D0F0C;
    --paper:#F7F5EF;
    --surface:#FFFFFF;
    --lime:#C7FF3C;
    --orange:#FF6B35;
    --graphite:#2B2E26;
    --muted:#6F7469;
    --line:#DAD6CA;
    --radius-lg:22px;
    --radius-md:16px;
    --radius-sm:10px;
    --shadow-sm:0 1px 2px rgba(17,19,15,.04);
    --shadow-md:0 12px 30px rgba(17,19,15,.10);
    --container:1240px;
  }
  html{scroll-behavior:smooth;}
  .site-body{
    margin:0;
    background:var(--paper);
    color:var(--graphite);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  .site-body h1,.site-body h2,.site-body h3,.site-body h4{
    margin:0;
    color:var(--ink);
    font-weight:800;
    letter-spacing:-0.02em;
    line-height:1.2;
  }
  .site-body p{margin:0;}
  .site-body a{color:inherit;text-decoration:none;}
  .site-body ul,.site-body ol{margin:0;padding:0;list-style:none;}
  .site-body button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
  .site-body img{max-width:100%;display:block;}
  .site-body :focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-stuck{box-shadow:0 6px 24px rgba(17,19,15,.09);}
  .brand-row{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    height:72px;transition:height .25s ease;
  }
  .site-header.is-stuck .brand-row{height:60px;}
  .brand{display:inline-flex;align-items:baseline;gap:1px;line-height:1;color:var(--ink);font-weight:900;letter-spacing:-0.03em;font-size:26px;}
  .brand-main{font-weight:900;}
  .brand-sub{font-size:.66em;font-weight:800;letter-spacing:-0.02em;}
  .brand-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 14px;border:1.5px solid var(--ink);border-radius:999px;
    font-size:14px;font-weight:600;color:var(--ink);
    transition:background .2s ease,color .2s ease,transform .2s ease;
  }
  .icon-btn:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:700;line-height:1.4;
    border:1.5px solid transparent;
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .btn-sm{padding:8px 16px;font-size:14px;}
  .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime);}
  .btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
  .btn-dark{background:var(--ink);color:var(--lime);border-color:var(--ink);}
  .btn-dark:hover{background:#000;color:var(--lime);transform:translateY(-2px);}
  .btn-outline-dark{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-outline-dark:hover{background:var(--ink);color:var(--lime);transform:translateY(-2px);}
  .menu-btn{
    display:none;padding:8px 16px;border:1.5px solid var(--ink);border-radius:var(--radius-sm);
    font-size:14px;font-weight:700;transition:background .2s ease,color .2s ease;
  }
  .menu-btn:hover{background:var(--ink);color:var(--paper);}

  .channel-row{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    min-height:46px;border-top:1px solid var(--line);
  }
  .channel-nav{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;}
  .channel-nav::-webkit-scrollbar{display:none;}
  .nav-link{
    position:relative;padding:6px 13px;border-radius:8px;
    font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
    background:var(--lime);transform:scaleX(0);transform-origin:left;
    transition:transform .22s ease;
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{background:var(--ink);color:#fff;}
  .nav-link.is-active::after{display:none;}
  .hot-chips{display:flex;align-items:center;gap:8px;flex-shrink:0;}
  .hot-label{font-size:12px;color:var(--muted);letter-spacing:.04em;}
  .chip{
    display:inline-flex;align-items:center;padding:4px 12px;
    border:1px solid var(--line);border-radius:999px;
    font-size:13px;color:var(--graphite);white-space:nowrap;
    transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .chip:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}

  /* ---------- search overlay ---------- */
  .search-overlay{
    position:fixed;inset:0;z-index:120;background:rgba(13,15,12,.55);
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
    display:flex;align-items:flex-start;justify-content:center;padding:88px 20px 40px;
  }
  .search-overlay.is-open{opacity:1;visibility:visible;}
  .search-card{
    width:100%;max-width:640px;background:var(--surface);
    border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md);
    transform:translateY(-10px);transition:transform .25s ease;
  }
  .search-overlay.is-open .search-card{transform:translateY(0);}
  .search-card h2{font-size:20px;margin-bottom:6px;}
  .search-card .hint{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
  .search-form{display:flex;gap:10px;}
  .search-form input{
    flex:1;padding:12px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
    font-size:15px;background:#fff;color:var(--graphite);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .search-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.4);}
  .search-close{position:absolute;top:24px;right:24px;font-size:14px;color:var(--paper);}
  .search-hot{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px;}

  /* ---------- hero ---------- */
  .hero{padding:28px 0 60px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);flex-wrap:wrap;}
  .breadcrumb a{transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
  .breadcrumb .sep{color:#B9B4A6;}
  .breadcrumb [aria-current]{color:var(--graphite);font-weight:600;}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;margin-top:26px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 14px;border-radius:999px;background:rgba(199,255,60,.35);
    border:1px solid rgba(17,19,15,.12);
    font-size:12.5px;font-weight:700;color:var(--ink);letter-spacing:.04em;
  }
  .hero h1{font-size:clamp(2.1rem,4.4vw,3.5rem);line-height:1.1;margin:18px 0 18px;letter-spacing:-0.03em;}
  .hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,rgba(199,255,60,.85) 62%);padding:0 2px;}
  .hero-lead{font-size:17px;line-height:1.85;color:var(--graphite);max-width:38ch;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .hero-stats{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
    margin-top:34px;padding-top:24px;border-top:1px solid var(--line);
  }
  .hero-stats li strong{
    display:block;font-size:30px;font-weight:900;color:var(--ink);
    font-variant-numeric:tabular-nums;letter-spacing:-0.03em;line-height:1.1;
  }
  .hero-stats li span{display:block;margin-top:4px;font-size:12.5px;color:var(--muted);}
  .hero-media{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-md);background:var(--line);
    aspect-ratio:4/3;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(13,15,12,0) 52%,rgba(13,15,12,.72) 100%);
  }
  .hero-media figcaption{
    position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
    color:#F7F5EF;font-size:13.5px;line-height:1.7;
  }

  /* ---------- sections ---------- */
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .section-head{max-width:640px;margin-bottom:36px;}
  .section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);margin:14px 0 12px;}
  .section-head p{font-size:15.5px;color:var(--muted);line-height:1.85;}

  /* ---------- steps ---------- */
  .steps-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .step-card{
    display:flex;flex-direction:column;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#C9C4B5;}
  .step-media{aspect-ratio:16/10;overflow:hidden;background:var(--line);}
  .step-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .step-card:hover .step-media img{transform:scale(1.03);}
  .step-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;}
  .step-no{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:12px;background:var(--ink);color:var(--lime);
    font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }
  .step-body h3{font-size:19px;}
  .step-body p{font-size:14.5px;line-height:1.8;color:var(--muted);}

  /* ---------- guide layout ---------- */
  .guide-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:44px;align-items:start;}
  .side-panel{position:sticky;top:128px;display:grid;gap:18px;}
  .panel-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
    padding:22px;box-shadow:var(--shadow-sm);
  }
  .panel-card > h2{font-size:15px;margin-bottom:14px;letter-spacing:-0.01em;}
  .search-box label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:10px;}
  .search-box .field{
    width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
    font-size:14px;color:var(--graphite);background:#fff;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .search-box .field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.4);}
  .search-box .tip{margin-top:10px;font-size:12.5px;color:var(--muted);line-height:1.7;}
  .toc{counter-reset:toc;}
  .toc li{counter-increment:toc;margin-bottom:4px;}
  .toc a{
    display:flex;align-items:baseline;gap:10px;padding:9px 10px;border-radius:8px;
    font-size:14px;color:var(--graphite);transition:background .2s ease,color .2s ease;
  }
  .toc a::before{
    content:counter(toc,decimal-leading-zero);
    font-size:12px;font-weight:800;color:var(--muted);
    font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }
  .toc a:hover{background:#F0F3E4;color:var(--ink);}
  .toc a:hover::before{color:var(--ink);}
  .side-note{
    background:var(--dark);color:#E7E6DD;border-radius:var(--radius-md);padding:22px;
    border:1px solid #2A2E24;
  }
  .side-note h2{color:#F7F5EF;font-size:15px;margin-bottom:10px;}
  .side-note p{font-size:13.5px;line-height:1.8;color:#A8ADA0;}
  .side-note a{
    display:inline-flex;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--lime);
    border-bottom:1px solid rgba(199,255,60,.4);padding-bottom:2px;
  }
  .side-note a:hover{border-bottom-color:var(--lime);}

  /* ---------- faq ---------- */
  .faq-group{margin-bottom:44px;}
  .faq-group:last-child{margin-bottom:0;}
  .group-head{display:flex;align-items:center;gap:12px;margin-bottom:6px;}
  .group-head h2{font-size:22px;}
  .group-count{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:30px;height:24px;padding:0 8px;border-radius:999px;
    background:rgba(199,255,60,.5);color:var(--ink);
    font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
  }
  .group-note{font-size:14px;color:var(--muted);margin-bottom:14px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:first-of-type{border-top:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--ink);
    transition:color .2s ease;
  }
  .faq-q:hover{color:#3B4128;}
  .faq-q .plus{
    flex:none;width:28px;height:28px;border-radius:999px;
    border:1.5px solid var(--line);display:grid;place-items:center;
    font-size:16px;line-height:1;color:var(--ink);
    transition:transform .25s ease,background .2s ease,border-color .2s ease;
  }
  .faq-item.is-open .faq-q .plus{transform:rotate(180deg);background:var(--lime);border-color:var(--lime);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-a-inner{padding:0 4px 20px;font-size:15.5px;line-height:1.85;color:var(--muted);}
  .faq-a-inner strong{color:var(--graphite);font-weight:700;}
  .faq-empty{
    display:none;text-align:center;padding:48px 20px;border:1px dashed var(--line);
    border-radius:var(--radius-md);color:var(--muted);font-size:14.5px;background:var(--surface);
  }

  /* ---------- pitfalls ---------- */
  .pitfall-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start;}
  .pitfall-head h2{font-size:clamp(1.5rem,2.4vw,2rem);margin:14px 0 12px;}
  .pitfall-head p{font-size:15.5px;color:var(--muted);line-height:1.85;max-width:36ch;}
  .pitfall-head img{
    margin-top:26px;width:100%;aspect-ratio:16/10;object-fit:cover;
    border-radius:var(--radius-md);border:1px solid var(--line);background:var(--line);
  }
  .pitfall-list li{
    display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
  }
  .pitfall-list li:first-child{border-top:1px solid var(--line);}
  .pitfall-list .num{
    flex:none;font-size:22px;font-weight:900;color:var(--ink);letter-spacing:-0.03em;
    font-variant-numeric:tabular-nums;line-height:1.2;
  }
  .pitfall-list h3{font-size:18px;margin-bottom:8px;}
  .pitfall-list p{font-size:14.5px;line-height:1.8;color:var(--muted);}

  /* ---------- cta ---------- */
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:36px;
    background:var(--lime);border-radius:var(--radius-lg);padding:42px 44px;
  }
  .cta-band h2{font-size:clamp(1.35rem,2.2vw,1.75rem);margin-bottom:10px;}
  .cta-band p{font-size:15px;line-height:1.8;color:#2E3A12;max-width:52ch;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

  /* ---------- footer ---------- */
  .site-footer{background:var(--dark);color:#EFEDE4;padding:64px 0 0;margin-top:24px;}
  .footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
    padding-bottom:40px;
  }
  .footer-brand .brand{color:#F7F5EF;font-size:23px;}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A8ADA0;max-width:34ch;}
  .footer-col h4{font-size:13.5px;color:var(--lime);letter-spacing:.06em;margin-bottom:16px;font-weight:700;}
  .footer-col li{margin-bottom:10px;}
  .footer-col a{font-size:14px;color:#C9CDC1;transition:color .2s ease;}
  .footer-col a:hover{color:var(--lime);}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid #2A2E24;padding:20px 0 26px;font-size:13px;color:#8B9086;
  }
  .to-top{
    font-size:13px;color:#C9CDC1;padding:6px 14px;border:1px solid #2A2E24;border-radius:999px;
    transition:color .2s ease,border-color .2s ease,background .2s ease;
  }
  .to-top:hover{color:var(--lime);border-color:var(--lime);}

  /* ---------- responsive ---------- */
  @media (max-width:1180px){
    .hot-chips{display:none;}
  }
  @media (max-width:1024px){
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero-media{aspect-ratio:16/9;order:2;}
    .hero-lead{max-width:none;}
    .guide-layout{grid-template-columns:1fr;gap:32px;}
    .side-panel{position:static;}
    .pitfall-wrap{grid-template-columns:1fr;gap:28px;}
    .pitfall-head p{max-width:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:860px){
    .brand{font-size:22px;}
    .menu-btn{display:inline-flex;}
    .channel-row{display:none;}
    .channel-row.is-open{
      display:block;min-height:0;padding:10px 0 16px;border-top:1px solid var(--line);
    }
    .channel-row.is-open .channel-nav{flex-direction:column;align-items:stretch;gap:2px;}
    .channel-row.is-open .nav-link{padding:11px 14px;font-size:15px;}
    .channel-row.is-open .nav-link::after{display:none;}
    .search-form{flex-direction:column;}
    .search-card{padding:22px;}
    .search-overlay{padding:72px 16px 32px;}
  }
  @media (max-width:768px){
    .container{padding:0 18px;}
    .section{padding:48px 0;}
    .section-tight{padding:38px 0;}
    .hero{padding:20px 0 44px;}
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
    .hero-stats li strong{font-size:26px;}
    .steps-grid{grid-template-columns:1fr;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;gap:22px;}
    .cta-actions{width:100%;}
    .group-head h2{font-size:20px;}
    .faq-q{font-size:16px;padding:16px 2px;}
    .faq-a-inner{font-size:15px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  }
  @media (max-width:520px){
    .brand{font-size:20px;}
    .brand-actions{gap:8px;}
    .icon-btn span:last-child{display:none;}
    .icon-btn{padding:8px 12px;}
    .btn-sm{padding:7px 12px;font-size:13px;}
    .hero h1{font-size:1.85rem;}
    .hero-actions .btn{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
    .step-card:hover,.btn:hover{transform:none !important;}
    .step-card:hover .step-media img{transform:none !important;}
  }

/* roulang page: category6 */
:root{
  --ink:#11130F;
  --dark:#0D0F0C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --lime:#C7FF3C;
  --orange:#FF6B35;
  --graphite:#2B2E26;
  --muted:#6F7469;
  --line:#DAD6CA;
  --line-soft:#EFEDE4;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(17,19,15,.04);
  --shadow-2:0 12px 30px rgba(17,19,15,.10);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  background:var(--paper);
  color:var(--graphite);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 16px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(17,19,15,.08)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .brand-row{height:58px}
.brand{display:inline-flex;align-items:baseline;gap:2px;letter-spacing:-.02em;line-height:1}
.brand-main{font-size:21px;font-weight:900;color:var(--ink)}
.brand-sub{font-size:13px;font-weight:800;color:var(--ink)}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);font-size:13px;font-weight:600;color:var(--ink);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.icon-btn:hover{border-color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:800;letter-spacing:.01em;
  border:1px solid transparent;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F7F5EF;transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:13px}
.menu-btn{display:none;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:13px;font-weight:700}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:6px 0 10px;border-top:1px solid var(--line-soft)}
.channel-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;white-space:nowrap;padding:8px 14px;border-radius:8px;
  font-size:14px;font-weight:700;color:var(--graphite);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:#EDEAE0;color:var(--ink)}
.nav-link.is-active{background:var(--ink);color:#F7F5EF}
.hot-chips{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.hot-label{font-size:12px;color:var(--muted);white-space:nowrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:6px 12px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);font-size:12px;font-weight:600;color:var(--graphite);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--ink);color:#F7F5EF;border-color:var(--ink)}
@media (max-width:1000px){
  .hot-chips{display:none}
  .menu-btn{display:inline-flex;align-items:center}
  .channel-row{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:14px 24px 18px;box-shadow:0 18px 34px rgba(17,19,15,.12);
  }
  body.nav-open .channel-row{display:block}
  .channel-nav{flex-direction:column;align-items:stretch;overflow:visible;gap:2px}
  .nav-link{padding:11px 12px;font-size:15px}
}
@media (max-width:640px){
  .brand-main{font-size:18px}
  .brand-sub{font-size:11px}
  .icon-btn span:last-child{display:none}
  .icon-btn{padding:8px 12px}
}

/* ---------- Search panel ---------- */
.search-panel{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(13,15,12,.62);padding:80px 20px;backdrop-filter:blur(2px);
}
.search-panel.is-open{display:block}
.search-box{max-width:720px;margin:0 auto;background:var(--surface);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-2)}
.search-box h3{font-size:18px;font-weight:900;color:var(--ink);margin-bottom:14px}
.search-field{
  width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;font-size:15px;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.search-field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,255,60,.35)}
.search-hot{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.search-close{margin-top:20px;display:inline-flex;padding:9px 18px;border:1.5px solid var(--ink);border-radius:var(--radius-sm);font-size:13px;font-weight:700}
.search-close:hover{background:var(--ink);color:#F7F5EF}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--dark);color:#F7F5EF}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.42}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(13,15,12,.95) 0%,rgba(13,15,12,.78) 48%,rgba(13,15,12,.55) 100%);
}
.page-hero-inner{position:relative;padding:38px 0 66px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,245,239,.66)}
.crumbs a:hover{color:var(--lime)}
.crumbs .current{color:#F7F5EF}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--lime);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:inline-block}
.page-title{
  margin:14px 0 16px;max-width:860px;
  font-size:clamp(2.1rem,4.6vw,3.5rem);line-height:1.1;font-weight:900;letter-spacing:-.02em;
}
.page-title .accent{color:var(--lime)}
.page-sub{max-width:660px;font-size:16.5px;line-height:1.85;color:rgba(247,245,239,.82)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn-on-dark{border-color:rgba(247,245,239,.55);color:#F7F5EF}
.btn-on-dark:hover{background:#F7F5EF;color:var(--ink);border-color:#F7F5EF}

/* ---------- Generic section ---------- */
.section{padding:72px 0}
.section-tight{padding:52px 0}
@media (max-width:768px){.section{padding:50px 0}.section-tight{padding:38px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:900;letter-spacing:-.02em;color:var(--ink);line-height:1.25}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:640px}

/* ---------- Filter bar ---------- */
.filter-bar{
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:10px 14px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  box-shadow:var(--shadow-1);
}
.filter-scroll{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto}
.filter-scroll::-webkit-scrollbar{display:none}
.filter-chip{
  white-space:nowrap;padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13px;font-weight:700;color:var(--graphite);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-chip:hover{background:var(--ink);color:#F7F5EF;border-color:var(--ink)}
.filter-chip.is-active{background:var(--lime);border-color:#AEE51F;color:var(--ink)}
.filter-note{font-size:12.5px;color:var(--muted);flex:0 0 auto}

/* ---------- Stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
@media (max-width:1024px){.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.stats-grid{grid-template-columns:1fr}}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFCABA}
.stat-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.stat-tag{font-size:11.5px;font-weight:800;padding:4px 10px;border-radius:999px;background:#F1EFE6;color:var(--muted)}
.stat-tag.hot{background:rgba(199,255,60,.42);color:#3A4A05}
.stat-tag.warn{background:rgba(255,107,53,.14);color:#B23F14}
.stat-num{font-size:clamp(2rem,3.4vw,2.85rem);line-height:1.05;font-weight:900;letter-spacing:-.03em;color:var(--ink);font-variant-numeric:tabular-nums}
.stat-num small{font-size:.46em;font-weight:800;margin-left:4px;color:var(--muted)}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ---------- Charts ---------- */
.chart-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
@media (max-width:1024px){.chart-grid{grid-template-columns:1fr}}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);
}
@media (max-width:640px){.panel{padding:20px;border-radius:20px}}
.panel h3{font-size:19px;font-weight:900;color:var(--ink);letter-spacing:-.01em}
.panel .panel-note{margin-top:6px;font-size:13px;color:var(--muted)}
.bar-list{margin-top:24px;display:grid;gap:16px}
.bar-row{display:grid;grid-template-columns:92px 1fr 64px;align-items:center;gap:14px;font-size:14px}
.bar-name{font-weight:700;color:var(--graphite);white-space:nowrap}
.bar-track{height:10px;border-radius:999px;background:var(--line-soft);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:var(--ink);width:0;transition:width .6s ease}
.bar-fill.is-hot{background:linear-gradient(90deg,#B7F02A,#C7FF3C)}
.bar-val{text-align:right;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.panel-dark{background:var(--dark);border-color:#2A2E24;color:#F7F5EF}
.panel-dark h3{color:#F7F5EF}
.panel-dark .panel-note{color:rgba(247,245,239,.6)}
.ring-wrap{display:flex;align-items:center;gap:24px;margin-top:22px;flex-wrap:wrap}
.ring{
  position:relative;width:132px;height:132px;border-radius:50%;flex:0 0 auto;
  background:conic-gradient(from -90deg,var(--lime) 0 68%,#2A2E24 68% 100%);
  display:grid;place-items:center;
}
.ring::before{content:"";position:absolute;inset:13px;border-radius:50%;background:var(--dark)}
.ring-val{position:relative;font-size:27px;font-weight:900;color:#F7F5EF;font-variant-numeric:tabular-nums}
.ring-val span{font-size:13px;color:rgba(247,245,239,.6);margin-left:2px}
.ring-text{flex:1 1 160px;font-size:13.5px;line-height:1.8;color:rgba(247,245,239,.72)}
.mini-list{margin-top:24px;display:grid;gap:16px}
.mini-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13.5px;color:rgba(247,245,239,.82)}
.mini-head b{font-weight:800;color:#F7F5EF;font-variant-numeric:tabular-nums}
.mini-track{height:8px;margin-top:8px;border-radius:999px;background:#2A2E24;overflow:hidden}
.mini-fill{height:100%;border-radius:999px;background:var(--lime);width:0;transition:width .6s ease}

/* ---------- Data rows ---------- */
.data-list{display:grid;gap:12px;margin-top:8px}
.data-row{
  display:grid;grid-template-columns:46px 1.5fr .7fr .7fr .9fr 22px;
  align-items:center;gap:18px;padding:18px 22px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.data-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFCABA}
.data-idx{font-size:14px;font-weight:900;color:#B9B4A4;font-variant-numeric:tabular-nums}
.data-name{font-size:15.5px;font-weight:800;color:var(--ink);line-height:1.4}
.data-desc{font-size:12.5px;color:var(--muted);margin-top:3px;font-weight:500}
.data-num{font-size:16px;font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums}
.data-num small{font-size:12px;font-weight:700;color:var(--muted);margin-left:3px}
.delta{
  display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;
  background:rgba(199,255,60,.36);color:#3C4E05;font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}
.data-time{font-size:12.5px;color:var(--muted)}
.data-arrow{font-size:16px;color:#B9B4A4;transition:transform .2s ease,color .2s ease}
.data-row:hover .data-arrow{color:var(--ink);transform:translateX(3px)}
@media (max-width:900px){
  .data-row{grid-template-columns:38px 1fr auto;gap:12px;padding:16px 18px}
  .data-num,.data-time{grid-column:2 / 3}
  .data-arrow{display:none}
  .delta{grid-column:3 / 4;grid-row:1 / 2;justify-self:end}
}

/* ---------- Method cards ---------- */
.method-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:900px){.method-grid{grid-template-columns:1fr}}
.method-card{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.method-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.method-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:#F1EFE6;color:var(--ink);font-weight:900;font-size:15px;margin-bottom:16px;
}
.method-icon.lime{background:rgba(199,255,60,.45)}
.method-card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px}
.method-card p{font-size:14px;line-height:1.85;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;text-align:left;font-size:16.5px;font-weight:800;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:#4C5A0F}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--ink);
  background:#fff;transition:transform .28s ease,background .2s ease,border-color .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(135deg);background:var(--lime);border-color:#AEE51F}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 4px 24px;max-width:820px;font-size:15.5px;line-height:1.85;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--lime);border-radius:var(--radius-lg);
  padding:34px 38px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:900;color:var(--ink);letter-spacing:-.02em;line-height:1.25}
.cta-band p{margin-top:8px;font-size:14.5px;color:#3E4712;max-width:560px;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-dark{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.btn-dark:hover{background:#F7F5EF;color:var(--ink);border-color:var(--ink);transform:translateY(-2px)}
@media (max-width:640px){.cta-band{padding:26px 22px;border-radius:20px}}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#F7F5EF;padding:64px 0 28px;margin-top:80px}
@media (max-width:768px){.site-footer{margin-top:56px;padding:48px 0 24px}}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer .brand-main,.site-footer .brand-sub{color:#F7F5EF}
.footer-brand p{margin-top:14px;max-width:340px;font-size:14px;line-height:1.85;color:rgba(247,245,239,.62)}
.footer-col h4{font-size:14px;font-weight:800;color:#F7F5EF;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(247,245,239,.7);transition:color .2s ease}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid #2A2E24;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,245,239,.55);
}
.to-top{
  padding:8px 16px;border:1px solid #2A2E24;border-radius:999px;
  font-size:12.5px;font-weight:700;color:#F7F5EF;background:#171A14;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .bar-fill,.mini-fill{transition:none!important}
}