/* roulang page: index */
/* ===== 1. 设计变量 ===== */
:root{
  --lime:#C8F53C;
  --lime-deep:#9BD10E;
  --coral:#FF6A4D;
  --ink:#101217;
  --ink-2:#1B1E24;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --text:#14161A;
  --text-2:#6E727B;
  --text-inv:#F7F6F2;
  --line:#E3E1DA;
  --radius:14px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(16,18,23,.04);
  --shadow-2:0 12px 28px rgba(16,18,23,.10);
  --sidebar-w:248px;
  --topbar-h:56px;
  --gutter:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
}

/* ===== 2. Reset 与基础排版 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease)}
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,figure{margin:0}
h1{font-size:clamp(30px,4.4vw,56px);font-weight:900;letter-spacing:-.03em;line-height:1.15}
h2{font-size:clamp(22px,2.4vw,32px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
h3{font-size:19px;font-weight:700;line-height:1.4;letter-spacing:-.01em}
p{color:var(--text-2)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}
.grid-container.wrap{max-width:1160px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%}

/* ===== 3. 外壳布局 ===== */
.app-sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--ink);color:var(--text-inv);
  display:flex;flex-direction:column;
  padding:24px 18px 20px;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.sb-logo{display:flex;align-items:center;gap:11px;padding:6px 8px 22px}
.sb-logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:19px;letter-spacing:-.02em;
}
.sb-logo-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.sb-logo-text strong{font-size:15px;font-weight:800;color:var(--text-inv);white-space:nowrap}
.sb-logo-text em{font-style:normal;font-size:12px;color:#8A8F99;letter-spacing:.02em}
.sb-nav{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.sb-nav-label{font-size:11px;letter-spacing:.14em;color:#6A6F79;padding:12px 10px 6px;text-transform:uppercase}
.sb-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px 0 14px;border-radius:9px;
  font-size:15px;color:#B9BDC6;
}
.sb-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;background:var(--lime);border-radius:0 3px 3px 0;
  transition:transform .22s var(--ease);
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{color:#fff;font-weight:700}
.sb-link.is-active::before{transform:translateY(-50%) scaleY(1)}
.sb-bottom{margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.sb-copy{margin-top:14px;font-size:11.5px;line-height:1.7;color:#6A6F79}

/* 移动端顶栏与抽屉 */
.app-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
  background:var(--ink);color:var(--text-inv);z-index:70;
  align-items:center;justify-content:space-between;padding:0 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.tb-logo{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:800;letter-spacing:-.01em;color:#fff}
.tb-logo i{width:28px;height:28px;border-radius:8px;background:var(--lime);color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:900;font-style:normal}
.tb-toggle{width:42px;height:42px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:9px}
.tb-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease)}
.tb-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.tb-toggle.is-open span:nth-child(2){opacity:0}
.tb-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,18,23,.6);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.app-drawer{
  position:fixed;top:0;left:0;height:100vh;width:82vw;max-width:320px;
  background:var(--ink);color:var(--text-inv);z-index:90;
  transform:translateX(-102%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;padding:22px 18px 20px;overflow-y:auto;
}
.app-drawer.is-open{transform:translateX(0)}
.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}

/* ===== 4. 通用组件 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:6px 10px;border-radius:6px;
  background:#EFEDE6;color:var(--text-2);font-weight:500;
}
.badge-lime{background:var(--lime);color:var(--ink);font-weight:700}
.badge-coral{background:rgba(255,106,77,.12);color:var(--coral);font-weight:700}
.badge-dark{background:rgba(255,255,255,.1);color:#D6D9DF}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .2s var(--ease)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 22px rgba(155,209,14,.28)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--text-inv);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:var(--text-inv)}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--text);
}
.btn-link i{transition:transform .2s var(--ease)}
.btn-link:hover{color:var(--lime-deep)}
.btn-link:hover i{transform:translateX(4px)}

.sec{padding:100px 0}
.sec-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.sec-head .eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--lime-deep);font-weight:600;display:block;margin-bottom:10px}
.sec-desc{max-width:62ch;margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--text-2)}
.hr{height:1px;background:var(--line);border:0;margin:0}

/* ===== 5. Hero ===== */
.hero{padding:56px 0 84px;position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-8%;top:12%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,245,60,.22),rgba(200,245,60,0) 68%);
  pointer-events:none;z-index:0;
}
.hero-inner{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero-copy .badge{margin-bottom:20px}
.hero-copy h1{margin-bottom:20px}
.hero-copy h1 em{font-style:normal;color:var(--lime-deep)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:56ch;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-facts{display:flex;flex-wrap:wrap;align-items:center;gap:0;border-top:1px solid var(--line);padding-top:20px}
.hero-facts li{font-size:14px;color:var(--text-2);padding:0 18px;border-left:1px solid var(--line);line-height:1.5}
.hero-facts li:first-child{padding-left:0;border-left:0}
.hero-facts li strong{display:block;font-family:var(--font-mono);font-size:19px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.hero-art{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:480px;background:#E9E7E0;box-shadow:var(--shadow-2)}
.hero-art .hero-bg{width:100%;height:100%;object-fit:cover;animation:heroZoom 20s ease-in-out infinite alternate}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.04)}}
.hero-art::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,18,23,.06) 0%,rgba(16,18,23,.42) 100%)}
.hero-float{
  position:absolute;left:22px;right:22px;bottom:22px;z-index:2;
  background:rgba(255,255,255,.96);border-radius:var(--radius);
  padding:14px;display:flex;align-items:center;gap:14px;
  box-shadow:0 10px 26px rgba(16,18,23,.18);
}
.hero-float img{width:76px;height:56px;object-fit:cover;border-radius:9px;flex:0 0 76px}
.hero-float strong{display:block;font-size:15px;font-weight:800;color:var(--text)}
.hero-float span{font-size:13px;color:var(--text-2);font-family:var(--font-mono)}

/* ===== 6. 玩法步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:34px 26px 8px 0;position:relative}
.step:not(:last-child)::after{content:"";position:absolute;right:26px;top:52px;width:calc(100% - 26px);height:1px;background:var(--line);display:none}
.step-num{font-family:var(--font-mono);font-size:44px;font-weight:700;line-height:1;color:var(--line);letter-spacing:-.04em;display:block;margin-bottom:18px;transition:color .25s var(--ease)}
.step:hover .step-num{color:var(--lime)}
.step h3{margin-bottom:10px}
.step p{font-size:14.5px;line-height:1.8}

/* ===== 7. 奖励预览 ===== */
.reward-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gutter)}
.reward-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  display:flex;flex-direction:column;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D3C9}
.reward-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EFEDE6}
.reward-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.reward-card:hover .reward-thumb img{transform:scale(1.03)}
.reward-thumb .rarity{position:absolute;left:12px;top:12px}
.reward-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.reward-name{font-size:16.5px;font-weight:700}
.reward-val{font-family:var(--font-mono);font-size:26px;font-weight:700;letter-spacing:-.02em;color:var(--text);line-height:1.2}
.reward-val small{font-size:13px;font-weight:500;color:var(--text-2);margin-left:6px;letter-spacing:0}
.reward-note{font-size:14px;line-height:1.8;color:var(--text-2);margin-top:auto}

/* ===== 8. 任务进度 ===== */
.progress-block{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px;box-shadow:var(--shadow-1)}
.stage-row{display:grid;grid-template-columns:repeat(4,1fr);position:relative;margin-bottom:34px}
.stage-row::before{content:"";position:absolute;left:14px;right:14px;top:11px;height:1px;background:var(--line)}
.stage{position:relative;display:flex;flex-direction:column;gap:12px;padding-right:14px}
.stage-dot{width:23px;height:23px;border-radius:50%;border:1px solid #CFCBC0;background:var(--card);position:relative;z-index:1;display:flex;align-items:center;justify-content:center}
.stage-dot i{font-size:10px;color:transparent}
.stage.is-done .stage-dot{background:var(--lime);border-color:var(--lime)}
.stage.is-done .stage-dot i{color:var(--ink)}
.stage.is-now .stage-dot{border:2px solid var(--lime);background:var(--card)}
.stage.is-now .stage-dot::after{content:"";width:9px;height:9px;border-radius:50%;background:var(--lime)}
.stage-name{font-size:15px;font-weight:700;color:var(--text)}
.stage-tip{font-size:13px;color:var(--text-2);line-height:1.7}
.bar{display:flex;align-items:center;gap:18px}
.bar-track{flex:1;height:10px;border-radius:6px;background:#EFEDE6;overflow:hidden}
.bar-fill{height:100%;width:0;border-radius:6px;background:linear-gradient(90deg,var(--lime-deep),var(--lime));transition:width .8s var(--ease)}
.bar-num{font-family:var(--font-mono);font-size:26px;font-weight:700;letter-spacing:-.02em}

/* ===== 9. 数据带 ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:32px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--font-mono);font-size:34px;font-weight:700;letter-spacing:-.03em;line-height:1.1;display:block}
.stat-num span{font-size:16px;color:var(--text-2);margin-left:4px}
.stat-label{font-size:14px;color:var(--text-2);margin-top:8px}

/* ===== 10. CTA 通栏 ===== */
.cta-band{background:var(--ink);color:var(--text-inv);border-radius:var(--radius-lg);padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:#9DA2AB;font-size:15.5px;max-width:60ch}
.cta-band .btn-lime{min-width:180px}

/* ===== 11. 最新信息列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gutter)}
.news-card{
  display:flex;gap:20px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D3C9}
.news-idx{
  font-family:var(--font-mono);font-size:22px;font-weight:700;color:#C9C5BA;
  line-height:1;flex:0 0 40px;padding-top:4px;letter-spacing:-.03em;
  transition:color .25s var(--ease);
}
.news-card:hover .news-idx{color:var(--lime-deep)}
.news-main{min-width:0;flex:1}
.news-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-ex{font-size:14.5px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-2)}
.news-meta .news-time{font-family:var(--font-mono);letter-spacing:.01em}
.news-meta i.arrow{margin-left:auto;font-size:13px;transition:transform .2s var(--ease)}
.news-card:hover .news-meta i.arrow{transform:translateX(4px);color:var(--lime-deep)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--card);border:1px dashed #D9D6CC;border-radius:var(--radius);
}
.empty-state i{font-size:34px;color:#C9C5BA;display:block;margin-bottom:14px}
.empty-state p{font-size:15px;margin-bottom:18px}

/* ===== 12. FAQ ===== */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:60px;padding:16px 26px;text-align:left;font-size:16px;font-weight:700;color:var(--text);
  transition:background-color .2s var(--ease);
}
.faq-q:hover{background:#FBFBF9}
.faq-q i{font-size:16px;color:var(--text-2);transition:transform .3s var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--lime-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);background:var(--paper)}
.faq-a-inner{padding:4px 26px 24px;font-size:15px;line-height:1.9;color:var(--text-2);border-top:1px solid var(--line);padding-top:18px}

/* ===== 13. 页脚 ===== */
.site-footer{background:var(--ink);color:#9DA2AB;margin-top:auto;padding:64px 0 28px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.foot-brand .sb-logo-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px}
.foot-brand strong{font-size:16px;color:#fff;font-weight:800}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.09)}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:#6A6F79;font-weight:700;margin-bottom:16px;text-transform:uppercase}
.foot-col p{color:#8A8F99;font-size:14px;line-height:1.85;max-width:34ch}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14.5px;color:#B9BDC6;display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-col a:hover{color:var(--lime);transform:translateX(2px)}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;font-size:12.5px;color:#6A6F79}
.foot-bottom em{font-style:normal;font-family:var(--font-mono)}

/* ===== 14. 动效与响应式 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (max-width:1023px){
  .app-sidebar{display:none}
  .app-topbar{display:flex}
  .app-main{margin-left:0;padding-top:var(--topbar-h)}
  .hero{padding:36px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-art{height:340px}
  .sec{padding:64px 0}
  .sec-tight{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .steps{grid-template-columns:repeat(2,1fr);gap:0 24px}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .story-grid{grid-template-columns:1fr !important}
  .news-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .stage-row{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .stage-row::before{display:none}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:639px){
  body{font-size:16px}
  .grid-container.wrap{padding-left:18px;padding-right:18px}
  .sec{padding:56px 0}
  .hero-copy h1{font-size:30px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-facts li{padding:0 12px 0 0;border-left:0;width:50%;margin-bottom:14px}
  .hero-art{height:280px}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:24px 0 20px;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
  .step-num{font-size:34px;margin-bottom:12px}
  .reward-grid{grid-template-columns:1fr}
  .progress-block{padding:26px 20px}
  .stage-row{grid-template-columns:1fr;row-gap:20px}
  .bar{flex-direction:column;align-items:flex-start;gap:10px}
  .bar-track{width:100%}
  .stats{grid-template-columns:1fr}
  .stat{padding:22px 0;border-left:0;border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
  .cta-band{padding:30px 22px;border-radius:var(--radius)}
  .cta-band .btn{width:100%}
  .news-card{padding:20px;gap:14px}
  .news-idx{flex:0 0 32px;font-size:18px}
  .faq-q{padding:14px 18px;font-size:15.5px}
  .faq-a-inner{padding:16px 18px 20px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1 !important;transform:none !important}
}

/* roulang page: category1 */
:root{
  --lime:#C8F53C;
  --lime-deep:#9BD10E;
  --coral:#FF6A4D;
  --ink:#101217;
  --ink-2:#1B1E24;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --text:#14161A;
  --muted:#6E727B;
  --line:#E3E1DA;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(16,18,23,.04);
  --sh-2:0 12px 28px rgba(16,18,23,.10);
  --font:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --side:248px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;color:var(--text)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
em{font-style:normal}

.wrap{
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.grid-container.wrap{padding-left:24px;padding-right:24px;max-width:1240px}

/* ============ 侧栏 App Shell ============ */
.sb-sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--side);
  height:100vh;
  background:var(--ink);
  color:var(--paper);
  display:flex;
  flex-direction:column;
  padding:26px 16px 20px;
  z-index:80;
  border-right:1px solid rgba(255,255,255,.07);
}
.sb-logo{display:flex;align-items:center;gap:12px;padding:0 8px 22px}
.sb-logo-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:grid;place-items:center;
  background:var(--lime);
  color:var(--ink);
  font-weight:900;font-size:19px;
  border-radius:12px;
  letter-spacing:0;
}
.sb-logo-txt{display:flex;flex-direction:column;line-height:1.35}
.sb-logo-txt strong{font-size:16px;font-weight:900;color:#fff;letter-spacing:-.01em}
.sb-logo-txt em{font-size:12px;color:rgba(247,246,242,.5);letter-spacing:0}
.sb-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.sb-nav-label{
  font-size:11px;letter-spacing:.18em;color:rgba(247,246,242,.38);
  padding:0 12px 8px;font-family:var(--mono);text-transform:uppercase;
}
.sb-link{
  position:relative;
  display:flex;align-items:center;
  height:44px;
  padding:0 12px 0 16px;
  font-size:15px;
  color:rgba(247,246,242,.72);
  border-radius:var(--r-sm);
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{color:#fff;font-weight:700;background:rgba(200,245,60,.07)}
.sb-link.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--lime);border-radius:2px;
}
.sb-bottom{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.sb-copy{font-size:12px;line-height:1.7;color:rgba(247,246,242,.42);margin:0;padding:0 6px}

/* ============ 移动端顶栏 + 抽屉 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  background:var(--ink);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:75;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar .tb-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900;font-size:15px}
.topbar .tb-mark{
  width:32px;height:32px;display:grid;place-items:center;
  background:var(--lime);color:var(--ink);border-radius:9px;font-size:15px;font-weight:900;
}
.burger{
  width:42px;height:42px;border:1px solid rgba(255,255,255,.18);
  background:transparent;border-radius:var(--r-sm);
  display:grid;place-items:center;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.burger span+span{margin-top:4px}

.drawer-mask{
  position:fixed;inset:0;background:rgba(16,18,23,.6);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;z-index:85;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:82vw;max-width:320px;
  background:var(--ink);color:var(--paper);
  padding:22px 16px;z-index:90;
  transform:translateX(-102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.drawer.is-open{transform:none}

/* ============ 主体 ============ */
.shell-main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

.sec{padding:56px 0}
.sec-tight{padding:40px 0 56px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.4vw,32px);letter-spacing:-.02em}
.sec-head p{margin:8px 0 0;color:var(--muted);font-size:15px;max-width:62ch}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;margin-bottom:10px;
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 22px rgba(155,209,14,.28)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#F7F6F2;border-color:rgba(247,246,242,.4)}
.btn-ghost-light:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--text);
  border-bottom:1px solid transparent;
}
.link-arrow i{font-style:normal;transition:transform .2s var(--ease);display:inline-block}
.link-arrow:hover{color:var(--lime-deep)}
.link-arrow:hover i{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:5px 10px;border-radius:var(--r-xs);
  background:rgba(200,245,60,.22);color:#3F5307;
}
.badge-hot{background:rgba(255,106,77,.14);color:#B2331B}
.pill{
  display:inline-block;font-size:12px;line-height:1;padding:6px 10px;
  border-radius:var(--r-xs);background:var(--paper);color:var(--muted);
  border:1px solid var(--line);white-space:nowrap;
}

/* ============ 页头 KV ============ */
.page-head{
  background:var(--card);
  border-bottom:1px solid var(--line);
  padding:40px 0 0;
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--line);font-family:var(--mono)}
.crumbs a:hover{color:var(--lime-deep)}
.crumbs li:last-child{color:var(--text);font-weight:500}
.head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.head-copy h1{
  font-size:clamp(30px,4.4vw,56px);
  line-height:1.15;letter-spacing:-.03em;margin:16px 0 18px;
}
.head-copy .lead{font-size:17px;color:var(--muted);max-width:64ch;margin-bottom:26px}
.head-actions{display:flex;gap:12px;flex-wrap:wrap}
.head-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/11;background:var(--paper);
}
.head-media img{width:100%;height:100%;object-fit:cover;animation:slowZoom 20s ease-in-out infinite alternate}
.head-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,18,23,0) 45%,rgba(16,18,23,.42) 100%);
}
.head-media .media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(16,18,23,.82);color:#fff;font-size:12px;
  padding:7px 12px;border-radius:var(--r-xs);font-family:var(--mono);letter-spacing:.04em;
}
@keyframes slowZoom{from{transform:scale(1)}to{transform:scale(1.04)}}

.head-points{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--line);
  margin-top:44px;
}
.head-points li{
  flex:1 1 180px;padding:20px 24px;
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:2px;
}
.head-points li:last-child{border-right:0}
.head-points strong{font-family:var(--mono);font-size:26px;font-weight:700;letter-spacing:-.02em}
.head-points span{font-size:13px;color:var(--muted)}

/* ============ 编号索引宽卡列表 ============ */
.index-list{border-top:1px solid var(--line)}
.idx-item{
  display:grid;
  grid-template-columns:104px 1fr 168px;
  gap:28px;align-items:start;
  padding:30px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease),transform .24s var(--ease);
}
.idx-item:hover{background:#fff;transform:translateX(4px)}
.idx-num{
  font-family:var(--mono);
  font-size:44px;font-weight:700;line-height:1;
  letter-spacing:-.04em;color:var(--line);
  transition:color .24s var(--ease);
}
.idx-item:hover .idx-num{color:var(--lime-deep)}
.idx-main h3{font-size:19px;font-weight:900;letter-spacing:-.01em;margin-bottom:8px;line-height:1.45}
.idx-main p{margin:0 0 12px;font-size:15px;line-height:1.8;color:var(--muted);max-width:66ch}
.idx-tags{display:flex;flex-wrap:wrap;gap:8px}
.idx-side{padding-top:6px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.idx-time{font-family:var(--mono);font-size:13px;color:var(--muted)}

/* ============ 口径说明 ============ */
.note-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.note-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.note-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.note-card h3{font-size:18px;margin-bottom:10px}
.note-card p{margin:0;font-size:15px;color:var(--muted)}
.note-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:var(--paper);
  font-family:var(--mono);font-size:13px;color:var(--text);margin-bottom:14px;
  border:1px solid var(--line);
}
.tip-bar{
  margin-top:24px;display:flex;gap:14px;align-items:flex-start;
  background:var(--ink);color:rgba(247,246,242,.82);
  border-radius:var(--r-md);padding:20px 24px;font-size:15px;line-height:1.8;
}
.tip-bar strong{color:var(--lime);font-weight:700;flex:0 0 auto}

/* ============ 图文区块 ============ */
.media-block{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center;
}
.media-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--paper);aspect-ratio:16/11;
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.media-figure:hover img{transform:scale(1.03)}
.check-list{display:flex;flex-direction:column;gap:16px;margin:22px 0 28px}
.check-list li{
  display:grid;grid-template-columns:26px 1fr;gap:12px;
  font-size:15.5px;line-height:1.75;color:var(--muted);
}
.check-list li strong{color:var(--text);font-weight:700;display:block;margin-bottom:2px}
.check-list .dot{
  width:22px;height:22px;border-radius:50%;margin-top:5px;
  border:1px solid var(--lime-deep);display:grid;place-items:center;
  font-family:var(--mono);font-size:11px;color:#5F7A0C;background:rgba(200,245,60,.2);
}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);line-height:1.6;
}
.faq-q .ico{
  flex:0 0 20px;width:20px;height:20px;position:relative;
  transition:transform .26s var(--ease);
}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;background:var(--text);border-radius:2px;
}
.faq-q .ico::before{left:0;top:9px;width:20px;height:2px}
.faq-q .ico::after{left:9px;top:0;width:2px;height:20px;transition:opacity .26s var(--ease)}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg)}
.faq-item.is-open .faq-q .ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a .faq-a-inner{
  padding:0 4px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:74ch;
  background:transparent;
}
.faq-item.is-open .faq-a{background:transparent}

/* ============ CTA 深色区块 ============ */
.cta-band{
  background:var(--ink);color:var(--paper);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.2vw,28px);margin-bottom:8px}
.cta-band p{margin:0;color:rgba(247,246,242,.65);font-size:15px;max-width:58ch}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(247,246,242,.66);padding:56px 0 24px;margin-top:24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.09)}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-brand strong{color:#fff;font-size:16px;font-weight:900}
.foot-col p{margin:0;font-size:14px;line-height:1.8}
.foot-col h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.02em}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:rgba(247,246,242,.66);display:inline-block}
.foot-col a:hover{color:var(--lime);transform:translateX(2px)}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;font-size:13px;color:rgba(247,246,242,.45);
}
.foot-bottom em{font-family:var(--mono);color:rgba(247,246,242,.6)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .32s var(--ease),transform .32s var(--ease)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .sb-sidebar{display:none}
  .topbar{display:flex}
  .shell-main{margin-left:0;padding-top:56px}
  .head-grid{grid-template-columns:1fr;gap:32px}
  .head-media{aspect-ratio:16/9}
  .idx-item{grid-template-columns:76px 1fr;gap:18px}
  .idx-side{grid-column:2;padding-top:0}
  .media-block{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (min-width:1024px){
  .sec{padding:88px 0}
  .sec-tight{padding:56px 0 88px}
  .page-head{padding-top:56px}
  .drawer,.drawer-mask,.topbar{display:none!important}
}
@media (max-width:767px){
  .idx-num{font-size:34px}
  .idx-item{grid-template-columns:64px 1fr;padding:24px 0}
  .note-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 24px}
}
@media (max-width:520px){
  .wrap,.grid-container.wrap{padding-left:18px;padding-right:18px}
  body{font-size:16px}
  .head-copy h1{font-size:clamp(26px,7.6vw,34px)}
  .head-actions .btn{width:100%}
  .head-points li{flex:1 1 100%;border-right:0;border-bottom:1px solid var(--line);padding:16px 0}
  .head-points li:last-child{border-bottom:0}
  .foot-grid{grid-template-columns:1fr}
  .idx-item{grid-template-columns:1fr;gap:10px}
  .idx-num{font-size:28px}
  .idx-side{grid-column:1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --lime:#C8F53C;
  --lime-deep:#9BD10E;
  --coral:#FF6A4D;
  --ink:#101217;
  --ink-2:#1B1E24;
  --paper:#F7F6F2;
  --white:#ffffff;
  --text:#14161A;
  --muted:#6E727B;
  --line:#E3E1DA;
  --radius-sm:10px;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(16,18,23,.04);
  --shadow-md:0 12px 28px rgba(16,18,23,.10);
  --side-w:248px;
  --top-h:56px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Helvetica Neue','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{padding-left:20px}
.grid-container{max-width:1240px;padding-left:28px;padding-right:28px}
.grid-container.wrap{padding-left:28px;padding-right:28px}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

/* ---------- 左侧 App Shell ---------- */
.app-side{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--ink);color:#DCDDE1;
  display:flex;flex-direction:column;
  padding:26px 18px 22px;z-index:70;
  overflow-y:auto;
}
.side-head{padding:0 6px 22px;border-bottom:1px solid rgba(255,255,255,.08)}
.side-logo{display:flex;align-items:center;gap:11px}
.side-logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:9px;background:var(--lime);
  color:var(--ink);font-weight:900;font-size:19px;display:inline-flex;align-items:center;justify-content:center;
}
.side-logo-text{font-size:16px;font-weight:700;color:#fff;line-height:1.25;letter-spacing:-.01em}
.side-logo-text em{display:block;font-style:normal;font-size:11px;font-weight:400;color:#8A8E98;letter-spacing:.02em;margin-top:2px}
.sb-nav{display:flex;flex-direction:column;gap:2px;padding:20px 0 0;flex:1}
.sb-nav-label{font-size:11px;letter-spacing:.16em;color:#6C717C;padding:0 10px 10px;text-transform:uppercase}
.sb-link{
  position:relative;display:block;padding:11px 10px 11px 14px;
  font-size:15px;color:#B7BAC2;border-radius:8px;
  transition:background .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.sb-link::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--lime);border-radius:2px;transition:height .22s var(--ease);
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{color:#fff;font-weight:700;background:rgba(255,255,255,.05)}
.sb-link.is-active::before{height:20px}
.side-foot{padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:12px}
.side-copy{font-size:11px;color:#6C717C;margin:0;line-height:1.6}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-deep);color:var(--ink);transform:translateY(-2px);box-shadow:0 10px 22px rgba(155,209,14,.28)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-line{background:transparent;border-color:var(--text);color:var(--text)}
.btn-line:hover{background:var(--text);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* ---------- 顶栏与抽屉 ---------- */
.app-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:var(--top-h);z-index:80;
  background:rgba(16,18,23,.96);backdrop-filter:blur(6px);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.app-topbar .side-logo-text{font-size:15px}
.app-topbar .side-logo-text em{display:none}
.nav-toggle{
  width:40px;height:40px;border-radius:9px;border:1px solid rgba(255,255,255,.18);
  background:transparent;color:#fff;font-size:17px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.1)}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(16,18,23,.6);z-index:65;opacity:0;
  transition:opacity .25s var(--ease);
}
body.drawer-open .drawer-mask{opacity:1}

/* ---------- 主内容 ---------- */
.app-main{margin-left:var(--side-w);min-height:100vh;padding-bottom:0}
.section{padding:84px 0}
.section-tight{padding:56px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head h2{font-size:clamp(22px,2.4vw,32px);font-weight:900;letter-spacing:-.02em;line-height:1.25}
.sec-head p{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- 文章栏头 ---------- */
.article-hero{
  position:relative;margin-top:28px;border-radius:var(--radius-lg);overflow:hidden;
  background-image:linear-gradient(104deg,rgba(16,18,23,.94) 0%,rgba(16,18,23,.78) 52%,rgba(16,18,23,.44) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:52px 48px 46px;color:#fff;
}
.crumbs{font-size:13px;color:#A7ABB4;margin-bottom:22px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0;padding:0}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li+li::before{content:'';width:1px;height:11px;background:rgba(255,255,255,.3);display:inline-block}
.crumbs a{color:#C9CCD3}
.crumbs a:hover{color:var(--lime)}
.crumbs [aria-current="page"]{color:#fff}
.article-hero h1{
  font-size:clamp(28px,3.8vw,46px);font-weight:900;letter-spacing:-.03em;line-height:1.2;
  max-width:820px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;
  background:rgba(200,245,60,.18);color:var(--lime);border:1px solid rgba(200,245,60,.34);
  padding:5px 12px;border-radius:999px;margin-bottom:18px;
}
.hero-note{margin-top:20px;font-size:14px;color:#B9BDC6;max-width:660px;line-height:1.8}

/* ---------- 元信息行 ---------- */
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;
  font-size:13px;color:var(--muted);
  padding:20px 0;border-bottom:1px solid var(--line);margin-bottom:44px;
}
.meta-row > * + *::before{
  content:'';display:inline-block;width:1px;height:12px;background:var(--line);
  margin:0 14px 0 0;vertical-align:middle;
}
.meta-row strong{color:var(--text);font-weight:500}
.meta-row .badge{font-size:12px}

/* ---------- 正文排版 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:52px;align-items:start}
.article-main{min-width:0}
.entry{font-size:17.5px;line-height:1.9;color:#1D2026;max-width:760px}
.entry > p:first-of-type{
  font-size:19px;color:var(--text);border-left:3px solid var(--lime);
  padding-left:16px;margin-bottom:1.4em;
}
.entry h2{font-size:clamp(22px,2.2vw,30px);font-weight:900;letter-spacing:-.02em;line-height:1.3;margin:48px 0 16px}
.entry h3{font-size:19px;font-weight:700;line-height:1.4;margin:32px 0 12px}
.entry p{margin:0 0 1.2em}
.entry ul,.entry ol{padding-left:22px;margin:0 0 1.2em}
.entry li{margin-bottom:.55em}
.entry blockquote{
  margin:28px 0;padding:18px 24px;background:#fff;border-left:3px solid var(--lime);
  border-radius:0 12px 12px 0;color:#3C4048;font-size:16.5px;
}
.entry img{border-radius:12px;margin:26px 0;border:1px solid var(--line)}
.entry figure{margin:26px 0}
.entry figure img{margin:0}
.entry figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}
.entry a{color:var(--text);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;transition:background .2s var(--ease)}
.entry a:hover{background:linear-gradient(transparent 60%,var(--lime) 0)}
.entry table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.entry th,.entry td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.entry th{background:#fff;font-weight:700}
.entry code{font-family:var(--mono);font-size:.9em;background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 6px}
.entry hr{border:0;border-top:1px solid var(--line);margin:40px 0}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:32px;display:flex;flex-direction:column;gap:20px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px}
.side-box h3{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:14px;text-transform:uppercase}
.toc-link{
  display:block;font-size:14px;color:#4A4E57;padding:7px 0 7px 12px;border-left:2px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),padding-left .2s var(--ease);
}
.toc-link:hover{color:var(--text);border-color:var(--lime);padding-left:16px}
.toc-link.is-sub{font-size:13px;padding-left:24px;color:#787D87}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.side-list a{font-size:14px;color:#4A4E57;display:inline-flex;align-items:center;gap:8px;transition:color .2s var(--ease),gap .2s var(--ease)}
.side-list a:hover{color:var(--text);gap:12px}

/* ---------- 卡片 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D6D3C9}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#EFEDE6;position:relative}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:700;line-height:1.45;letter-spacing:-.01em}
.post-body p{font-size:14px;color:var(--muted);line-height:1.75}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:700;line-height:1.6;
  padding:2px 9px;border-radius:6px;background:rgba(200,245,60,.32);color:#3E4B08;
}
.badge-coral{background:rgba(255,106,77,.16);color:#B1371F}
.time{font-family:var(--mono);font-size:12px;color:var(--muted)}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--text);transition:gap .2s var(--ease),color .2s var(--ease)}
.arrow-link:hover{gap:10px;color:#3E4B08}

/* ---------- 上下篇与返回 ---------- */
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:52px}
.postnav a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.postnav a:hover{transform:translateY(-3px);border-color:var(--lime);box-shadow:var(--shadow-md)}
.postnav span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.postnav strong{font-size:16px;font-weight:700}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;height:60px;background:none;border:0;padding:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16px;font-weight:700;color:var(--text);text-align:left;
}
.faq-q i{font-size:18px;color:var(--muted);transition:transform .26s var(--ease),color .26s var(--ease)}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--lime-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{font-size:15px;color:#4A4E57;line-height:1.85;padding:0 0 22px;max-width:820px}
.faq-item.is-open .faq-a{max-height:300px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#fff;border-radius:var(--radius-lg);
  padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:'';position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,245,60,.16),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.3vw,30px);font-weight:900;letter-spacing:-.02em;line-height:1.3}
.cta-band p{font-size:14.5px;color:#A9ADB6;margin-top:10px;max-width:560px}
.cta-band .btn{flex:0 0 auto;position:relative;z-index:1}

/* ---------- 空态 ---------- */
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:64px 28px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state i{font-size:42px;color:#C3C0B6}
.empty-state p{font-size:15px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#9CA0A9;padding:64px 0 28px;margin-top:84px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.foot-brand strong{color:#fff;font-size:16px;letter-spacing:-.01em}
.foot-col p{font-size:13.5px;line-height:1.85;max-width:320px}
.foot-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}
.foot-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13.5px;color:#9CA0A9;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-col a:hover{color:var(--lime);transform:translateX(2px)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#6C717C;
}
.foot-bottom em{font-style:normal;font-family:var(--mono);color:#8A8E98}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 200px;gap:36px}
  .entry > p:first-of-type{font-size:18.5px}
}
@media (max-width:1023px){
  .app-topbar{display:flex}
  .app-side{
    transform:translateX(-100%);transition:transform .32s var(--ease);
    width:82vw;max-width:320px;box-shadow:0 0 40px rgba(0,0,0,.4);
  }
  body.drawer-open .app-side{transform:none}
  body.drawer-open{overflow:hidden}
  .drawer-mask{display:block}
  .app-main{margin-left:0;padding-top:var(--top-h)}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .grid-container,.grid-container.wrap{padding-left:18px;padding-right:18px}
  .section{padding:56px 0}
  .section-tight{padding:40px 0}
  .article-hero{margin-top:16px;padding:32px 22px 30px;border-radius:var(--radius)}
  .article-hero h1{font-size:clamp(25px,7vw,32px)}
  .article-layout{gap:26px}
  .meta-row{margin-bottom:32px;gap:0;font-size:12.5px}
  .meta-row > * + *::before{margin-right:10px}
  .entry{font-size:17px}
  .entry h2{margin-top:38px}
  .entry > p:first-of-type{font-size:18px;padding-left:13px}
  .rel-grid{grid-template-columns:1fr}
  .postnav{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;gap:22px}
  .cta-band .btn{width:100%}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:15.5px;height:56px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --lime:#C8F53C;
  --lime-deep:#9BD10E;
  --coral:#FF6A4D;
  --ink:#101217;
  --ink-2:#1B1E24;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --text:#14161A;
  --muted:#6E727B;
  --line:#E3E1DA;
  --inv:#F7F6F2;
  --r-sm:10px;
  --r:14px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(16,18,23,.04);
  --sh-2:0 12px 28px rgba(16,18,23,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
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{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
.mono{font-family:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Courier New",monospace;font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}

/* ===== 外壳 ===== */
.shell{min-height:100vh}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}

/* 侧栏 */
.sidebar{
  position:fixed;top:0;left:0;width:var(--side);height:100vh;
  background:var(--ink);color:var(--inv);
  display:flex;flex-direction:column;
  padding:26px 20px 22px;z-index:60;
}
.sb-brand{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.sb-logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:19px;letter-spacing:-.02em;
}
.sb-brand-text strong{display:block;font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em}
.sb-brand-text em{display:block;font-style:normal;font-size:12px;color:#8B8F99;letter-spacing:.02em}
.sb-nav-label{
  display:block;margin:26px 0 10px;font-size:12px;letter-spacing:.16em;
  color:#5E626C;text-transform:uppercase;
}
.sb-nav{display:flex;flex-direction:column;gap:2px;flex:1 1 auto;overflow-y:auto}
.sb-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px;border-radius:8px;
  font-size:15px;color:#B9BDC6;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.sb-link::before{
  content:"";position:absolute;left:-20px;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--lime);border-radius:0 3px 3px 0;
  transition:height .24s var(--ease);
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{color:#fff;font-weight:500}
.sb-link.is-active::before{height:22px}
.sb-foot{margin-top:18px;border-top:1px solid rgba(255,255,255,.08);padding-top:16px}
.sb-foot .btn{width:100%;justify-content:center}
.sb-copy{margin-top:14px;font-size:11.5px;line-height:1.7;color:#5E626C}

/* 顶部移动栏 */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:var(--ink);color:#fff;align-items:center;justify-content:space-between;
  padding:0 16px;
}
.tb-brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700}
.tb-brand .sb-logo-mark{width:30px;height:30px;flex:0 0 30px;border-radius:9px;font-size:15px}
.tb-toggle{
  width:40px;height:40px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:17px;color:#fff;background:rgba(255,255,255,.07);
}
/* 抽屉 */
.scrim{
  position:fixed;inset:0;background:rgba(16,18,23,.6);opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:80;
}
.scrim.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;height:100vh;width:82vw;max-width:320px;
  background:var(--ink);color:var(--inv);z-index:90;
  transform:translateX(-102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px 18px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .sb-nav{margin-top:20px}
.drawer .sb-link::before{left:-18px}

/* 主内容 */
.main{padding-left:var(--side)}
.main-inner{padding:40px 0 0}

/* ===== 通用组件 ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px)}
.btn-ghost{border-color:var(--text);color:var(--text);background:transparent}
.btn-ghost:hover{background:var(--text);color:var(--inv);transform:translateY(-2px)}
.btn-ghost-inv{border-color:rgba(247,246,242,.45);color:var(--inv);background:transparent}
.btn-ghost-inv:hover{background:var(--inv);color:var(--ink);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;
  color:var(--text);border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow i{transition:transform .24s var(--ease)}
.link-arrow:hover{color:var(--lime-deep);border-color:var(--lime-deep)}
.link-arrow:hover i{transform:translateX(4px)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;
  background:#EFEEE8;color:#4B4F57;font-size:12px;letter-spacing:.02em;white-space:nowrap;
}
.tag-lime{background:rgba(200,245,60,.28);color:#4C5A0B}
.tag-coral{background:rgba(255,106,77,.14);color:#B23A22}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:6px;
  font-size:12px;letter-spacing:.04em;background:rgba(247,246,242,.1);color:var(--inv);
}
.badge i{font-size:11px;color:var(--lime)}
.section{padding:76px 0}
.section-head{margin-bottom:34px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.4vw,32px)}
.section-head p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:12px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--lime-deep)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ===== 分类栏头 ===== */
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#C4C2BA}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--lime-deep)}
.crumb .is-current{color:var(--text);font-weight:500}
.cat-hero{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--ink);color:var(--inv);
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
  padding:52px 44px;
}
.cat-hero h1{font-size:clamp(28px,3.6vw,46px);letter-spacing:-.03em;line-height:1.16}
.cat-hero h1 em{font-style:normal;color:var(--lime)}
.cat-hero .lede{margin-top:18px;font-size:16px;line-height:1.85;color:#C6C9D1;max-width:34em}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{
  position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:16/11;
  border:1px solid rgba(247,246,242,.12);background:var(--ink-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.92;animation:slowZoom 20s var(--ease) infinite alternate}
@keyframes slowZoom{from{transform:scale(1)}to{transform:scale(1.04)}}
.hero-foot{
  grid-column:1/-1;display:flex;flex-wrap:wrap;gap:22px;
  margin-top:8px;padding-top:20px;border-top:1px solid rgba(247,246,242,.12);
}
.hero-foot span{font-size:13.5px;color:#A9ADB6;display:flex;align-items:center;gap:8px}
.hero-foot span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}
.hero-foot span:nth-child(2)::before{background:var(--coral)}
.hero-foot span:nth-child(3)::before{background:#5D626C}

/* ===== 准备清单（对照行） ===== */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.check-card .ico{
  width:42px;height:42px;border-radius:11px;background:rgba(200,245,60,.28);
  display:flex;align-items:center;justify-content:center;color:#4C5A0B;font-size:16px;margin-bottom:16px;
}
.check-card h3{font-size:18px;margin-bottom:10px}
.check-card p{font-size:14.5px;color:var(--muted);line-height:1.85}
.check-card .rows{margin-top:16px;border-top:1px solid var(--line);padding-top:14px;display:flex;flex-direction:column;gap:8px}
.check-card .rows li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:#4B4F57}
.check-card .rows b{font-weight:500;color:var(--text)}

/* ===== 步骤条（时间轴） ===== */
.steps{position:relative;max-width:940px}
.step{
  position:relative;display:grid;grid-template-columns:88px 1fr;gap:26px;
  padding:0 0 34px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:43px;top:52px;bottom:6px;width:1px;background:var(--line);
}
.step:last-child::before{display:none}
.step-no{
  width:88px;height:52px;display:flex;align-items:center;justify-content:center;
  font-family:"SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  font-size:24px;font-weight:600;letter-spacing:-.02em;
  border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--text);
  position:relative;z-index:1;transition:background .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease);
}
.step:hover .step-no,.step.is-done .step-no{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.step-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.step-body:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-body h3{font-size:19px;margin-bottom:10px}
.step-body p{font-size:15px;color:var(--muted);line-height:1.85;max-width:60ch}
.step-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}

/* ===== 设备对照 ===== */
.compare{border-top:1px solid var(--line)}
.cmp-row{
  display:grid;grid-template-columns:220px 1fr;gap:32px;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background .24s var(--ease);
}
.cmp-row:hover{background:rgba(255,255,255,.6)}
.cmp-key{display:flex;flex-direction:column;gap:10px}
.cmp-key .k-label{font-size:12px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.cmp-key h3{font-size:19px;display:flex;align-items:center;gap:10px}
.cmp-key h3 i{color:var(--lime-deep);font-size:16px}
.cmp-val p{font-size:15px;color:var(--muted);line-height:1.85;max-width:62ch}
.cmp-val p+p{margin-top:10px}
.cmp-val .pts{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.cmp-val .pts li{display:flex;gap:10px;font-size:14.5px;color:#4B4F57}
.cmp-val .pts li::before{content:"";flex:0 0 6px;height:6px;margin-top:9px;border-radius:50%;background:var(--lime-deep)}

/* ===== FAQ ===== */
.faq{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 4px;text-align:left;font-size:16px;font-weight:500;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#3F4A0C}
.faq-ico{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text);border-radius:2px;
  transition:transform .26s var(--ease),background .26s var(--ease);
}
.faq-ico::before{width:14px;height:1.5px;transform:translate(-50%,-50%)}
.faq-ico::after{width:1.5px;height:14px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-ico::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.is-open .faq-ico::before,.faq-item.is-open .faq-ico::after{background:var(--lime-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:2px 4px 24px;background:transparent;max-width:70ch}
.faq-a-inner p{font-size:15px;color:var(--muted);line-height:1.9}
.faq-a-inner p+p{margin-top:10px}

/* ===== CTA ===== */
.cta{
  background:var(--ink);color:var(--inv);border-radius:var(--r-lg);
  padding:44px 44px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
}
.cta h2{font-size:clamp(21px,2.3vw,29px);color:#fff}
.cta p{margin-top:12px;font-size:15px;color:#B7BBC4;line-height:1.8;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#B7BBC4;margin-top:88px;padding:64px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand strong{color:#fff;font-size:16px}
.foot-col h4{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:16px}
.foot-col p{font-size:14px;line-height:1.85;color:#9297A1;max-width:38ch}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14px;color:#B7BBC4;display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-col a:hover{color:var(--lime);transform:translateX(2px)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:#6E727B;
}
.foot-bottom em{font-style:normal;color:#9297A1}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{padding-left:0;padding-top:0}
  .main-inner{padding-top:76px}
  .cat-hero{grid-template-columns:1fr;padding:36px 26px;gap:26px}
  .hero-figure{aspect-ratio:16/9}
  .section{padding:56px 0}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .cmp-row{grid-template-columns:1fr;gap:14px}
  .cta{grid-template-columns:1fr;padding:34px 26px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:639px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .main-inner{padding-top:70px}
  .cat-hero{padding:28px 18px;border-radius:16px}
  .cat-hero .lede{font-size:15px}
  .hero-foot{gap:14px}
  .hero-foot span{font-size:12.5px}
  .section{padding:56px 0}
  .check-grid{grid-template-columns:1fr;gap:16px}
  .step{grid-template-columns:60px 1fr;gap:14px;padding-bottom:24px}
  .step::before{left:29px;top:44px}
  .step-no{width:60px;height:44px;font-size:19px;border-radius:10px}
  .step-body{padding:20px 18px}
  .cmp-row{padding:22px 0}
  .faq-q{font-size:15px;min-height:60px}
  .cta{padding:28px 18px}
  .cta-actions .btn{width:100%;justify-content:center}
  .foot-grid{grid-template-columns:1fr}
  .site-footer{padding:48px 0 22px;margin-top:64px}
  .foot-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --lime:#C8F53C;
  --lime-deep:#9BD10E;
  --coral:#FF6A4D;
  --ink:#101217;
  --ink-2:#1B1E24;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --text:#14161A;
  --text-2:#6E727B;
  --line:#E3E1DA;
  --radius:14px;
  --radius-lg:20px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(16,18,23,.04);
  --shadow-2:0 12px 28px rgba(16,18,23,.10);
  --shell:248px;
  --gap:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}

/* ============ 布局外壳 ============ */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.site-shell{padding-left:0;min-height:100vh}
@media (max-width:1023px){
  body{padding-top:56px}
}

/* ============ 侧边栏 ============ */
.sidebar{
  display:none;
  position:fixed;
  top:0;left:0;
  width:var(--shell);
  height:100vh;
  background:var(--ink);
  color:#F7F6F2;
  flex-direction:column;
  padding:26px 18px 20px;
  z-index:40;
  border-right:1px solid rgba(255,255,255,.06);
}
.sb-brand{display:flex;align-items:center;gap:10px;padding:0 6px 22px;border-bottom:1px solid rgba(255,255,255,.08)}
.sb-logo-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  background:var(--lime);color:var(--ink);
  font-weight:900;font-size:17px;border-radius:9px;
}
.sb-brand-text{display:flex;flex-direction:column;line-height:1.2}
.sb-brand-text strong{font-size:15px;letter-spacing:-.01em;color:#F7F6F2}
.sb-brand-text small{font-size:11px;color:#8D919A;letter-spacing:.06em;margin-top:3px}
.sb-nav{display:flex;flex-direction:column;gap:2px;margin-top:22px;flex:1 1 auto}
.sb-nav-label{font-size:11px;letter-spacing:.18em;color:#767A83;padding:0 12px 10px;text-transform:uppercase}
.sb-link{
  position:relative;
  display:flex;align-items:center;
  height:44px;padding:0 12px 0 16px;
  font-size:15px;color:#B9BDC6;
  border-radius:8px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.sb-link::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  background:transparent;border-radius:2px;transition:background .2s var(--ease);
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#F7F6F2}
.sb-link.is-active{background:rgba(255,255,255,.05);color:#FFFFFF;font-weight:600}
.sb-link.is-active::before{background:var(--lime)}
.sb-bottom{margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.sb-cta{width:100%;justify-content:center}
.sb-copy{font-size:11px;color:#767A83;margin-top:12px;text-align:center;line-height:1.6}

/* ============ 移动顶栏 + 抽屉 ============ */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:60;
  background:var(--ink);color:#F7F6F2;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar .sb-brand{padding:0;border:0}
.topbar .sb-brand-text strong{font-size:14px}
.topbar .sb-brand-text small{display:none}
.burger{
  width:42px;height:42px;border:0;background:transparent;color:#F7F6F2;
  display:flex;align-items:center;justify-content:center;font-size:19px;cursor:pointer;border-radius:8px;
}
.burger:hover{background:rgba(255,255,255,.08)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:82vw;max-width:320px;
  background:var(--ink);color:#F7F6F2;z-index:80;
  padding:22px 18px 20px;display:flex;flex-direction:column;
  transform:translateX(-102%);transition:transform .32s var(--ease);
}
.drawer.is-open{transform:translateX(0)}
.overlay{
  position:fixed;inset:0;background:rgba(16,18,23,.6);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.overlay.is-open{opacity:1;pointer-events:auto}
@media (min-width:1024px){
  .topbar,.drawer,.overlay{display:none}
  .sidebar{display:flex}
  .site-shell{padding-left:var(--shell)}
}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-deep);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#F7F6F2;border-color:rgba(247,246,242,.5)}
.btn-ghost-light:hover{background:#F7F6F2;color:var(--ink)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow i{transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--lime-deep);border-color:var(--lime-deep)}
.link-arrow:hover i{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border-radius:6px;font-size:12px;line-height:1.6;
  background:#EEEDE7;color:var(--text-2);border:1px solid var(--line);
}
.badge-coral{background:rgba(255,106,77,.10);color:#C6412A;border-color:rgba(255,106,77,.28)}
.badge-lime{background:rgba(200,245,60,.22);color:#48650A;border-color:rgba(155,209,14,.45)}
.sec{padding:64px 0}
.sec-head{margin-bottom:32px;max-width:760px}
.sec-head h2{font-size:clamp(22px,2.4vw,32px)}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:64ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--text-2);
  margin-bottom:14px;font-family:var(--mono);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--line)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 分类栏头 ============ */
.cat-hero{border-bottom:1px solid var(--line);background:var(--white)}
.cat-hero-inner{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;padding:56px 0 60px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:18px}
.crumb a{color:var(--text-2);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:#C9C6BE}
.crumb .now{color:var(--ink)}
.cat-hero h1{font-size:clamp(30px,4vw,50px);letter-spacing:-.03em;line-height:1.15}
.cat-hero h1 em{font-style:normal;display:block;font-size:.58em;font-weight:500;color:var(--text-2);letter-spacing:-.01em;margin-top:14px;line-height:1.6}
.cat-hero .lead{margin-top:18px;font-size:16px;color:var(--text-2);max-width:60ch}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:#EFEDE6}
.hero-visual img{width:100%;height:320px;object-fit:cover;animation:heroZoom 20s ease-in-out infinite alternate}
.hero-visual .float-card{
  position:absolute;left:16px;bottom:16px;right:auto;
  background:rgba(255,255,255,.96);border:1px solid var(--line);
  border-radius:var(--radius);padding:12px 16px;box-shadow:var(--shadow-2);
  display:flex;flex-direction:column;gap:2px;
}
.hero-visual .float-card b{font-family:var(--mono);font-size:20px;letter-spacing:-.02em}
.hero-visual .float-card span{font-size:12px;color:var(--text-2)}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.04)}}

/* ============ 速览条 ============ */
.strip{border-bottom:1px solid var(--line);background:var(--paper)}
.strip-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.strip-item{padding:24px 22px;border-right:1px solid var(--line)}
.strip-item:last-child{border-right:0}
.strip-item dt{font-size:12px;letter-spacing:.14em;color:var(--text-2);font-family:var(--mono)}
.strip-item dd{margin:8px 0 0;font-size:16px;font-weight:600;letter-spacing:-.01em}
.strip-item small{display:block;margin-top:4px;font-size:13px;color:var(--text-2);font-weight:400}

/* ============ 两列图文卡网格（主版式） ============ */
.gift-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.gift-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.gift-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D3C9}
.gift-media{position:relative;overflow:hidden;background:#EFEDE6}
.gift-media img{width:100%;height:210px;object-fit:cover;transition:transform .5s var(--ease)}
.gift-card:hover .gift-media img{transform:scale(1.03)}
.gift-media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94)}
.gift-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.gift-body h3{font-size:19px;letter-spacing:-.01em}
.gift-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.gift-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.gift-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line)}
.gift-code{font-family:var(--mono);font-size:13px;color:var(--text-2);letter-spacing:.04em}

/* ============ 分栏说明 ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:48px;align-items:center}
.step-list{counter-reset:st;display:flex;flex-direction:column}
.step-row{display:flex;gap:18px;padding:20px 0;border-top:1px solid var(--line)}
.step-row:last-child{border-bottom:1px solid var(--line)}
.step-no{
  font-family:var(--mono);font-size:22px;font-weight:700;color:var(--lime-deep);
  line-height:1.2;flex:0 0 46px;letter-spacing:-.04em;
}
.step-row h3{font-size:17px}
.step-row p{margin-top:6px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.split-figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:#EFEDE6;position:relative}
.split-figure img{width:100%;height:400px;object-fit:cover}
.split-note{
  margin-top:18px;padding:16px 18px;background:var(--white);
  border:1px solid var(--line);border-left:3px solid var(--lime);border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);
}

/* ============ FAQ ============ */
.faq{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 22px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);text-align:left;
  transition:background .2s var(--ease);
}
.faq-q:hover{background:var(--paper)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform .28s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:1.6px}
.faq-icon::after{width:1.6px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.9;background:var(--paper);padding-top:16px}
.faq-item.is-open .faq-a{grid-template-rows:1fr}

/* ============ CTA 区块 ============ */
.cta-band{
  background:var(--ink);color:#F7F6F2;
  border-radius:var(--radius-lg);
  padding:40px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);letter-spacing:-.02em}
.cta-band p{margin-top:10px;font-size:15px;color:#A9ADB6;max-width:56ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A9ADB6;margin-top:72px;padding:56px 0 28px;border-top:1px solid rgba(255,255,255,.06)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand strong{color:#F7F6F2;font-size:16px}
.foot-col p{font-size:14px;line-height:1.85;color:#8D919A;max-width:34ch}
.foot-col h4{color:#F7F6F2;font-size:14px;letter-spacing:.04em;margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:#A9ADB6;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.foot-col a:hover{color:var(--lime);transform:translateX(2px)}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:#767A83;
}
.foot-bottom em{font-style:normal;font-family:var(--mono)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .cat-hero-inner{grid-template-columns:1fr;gap:32px;padding:40px 0 44px}
  .hero-visual img{height:250px}
  .strip-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strip-item{border-bottom:1px solid var(--line)}
  .strip-item:nth-child(2n){border-right:0}
  .split{grid-template-columns:1fr;gap:30px}
  .split-figure img{height:300px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .sec{padding:56px 0}
}
@media (max-width:639px){
  .wrap{padding:0 16px}
  .gift-grid{grid-template-columns:1fr;gap:16px}
  .gift-media img{height:190px}
  .strip-grid{grid-template-columns:1fr}
  .strip-item{border-right:0}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .cat-hero h1{font-size:clamp(26px,7vw,34px)}
  .sec{padding:44px 0}
  .faq-q{font-size:15px;padding:14px 16px}
  .faq-a p{padding-left:16px;padding-right:16px}
  .step-row{gap:12px}
  .step-no{flex:0 0 36px;font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}