/* roulang page: index */
:root{
  --ink:#101112;
  --ink-soft:rgba(16,17,18,.72);
  --paper:#F7F5EF;
  --paper-2:#FBF9F4;
  --orange:#FF4B12;
  --orange-dark:#E33D06;
  --lime:#CBF24A;
  --muted:#6E6A63;
  --line:#E2DED5;
  --card:#FFFFFF;
  --danger:#C8321E;
  --r-card:16px;
  --r-img:12px;
  --r-portrait:20px;
  --r-btn:10px;
  --shadow-sm:0 2px 10px rgba(16,17,18,.05);
  --shadow-lg:0 14px 32px rgba(16,17,18,.10);
  --bd:1px solid rgba(16,17,18,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
body{
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--paper-2);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--orange);font-weight:700;text-transform:uppercase;margin-bottom:10px;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);display:inline-block;}
h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.15;}
h2{font-size:clamp(26px,3.6vw,40px);}
h3{font-size:clamp(18px,2vw,22px);}
.sec-sub{color:var(--muted);font-size:15px;margin-top:12px;max-width:640px;}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-weight:700;font-size:15px;white-space:nowrap;}
.link-more span{transition:transform .22s var(--ease);}
.link-more:hover span{transform:translateX(4px);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 28px;border-radius:var(--r-btn);font-weight:700;font-size:16px;line-height:1;transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);white-space:nowrap;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(255,75,18,.22);}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,75,18,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(16,17,18,.22);}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);}
.btn-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* 标签 */
.tag{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em;background:rgba(16,17,18,.06);color:var(--ink-soft);}
.tag--orange{background:rgba(255,75,18,.10);color:var(--orange-dark);}
.tag--lime{background:var(--lime);color:#1B2000;}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:120;background:rgba(247,245,239,.86);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid rgba(16,17,18,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:18px;letter-spacing:-.02em;white-space:nowrap;}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--lime);font-size:14px;font-weight:900;letter-spacing:-.04em;flex:0 0 auto;}
.logo:hover .logo-mark{background:var(--orange);color:#fff;}
.logo-mark{transition:background-color .22s var(--ease),color .22s var(--ease);}
.nav{display:flex;align-items:center;gap:6px;}
.nav a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:8px;font-size:15px;font-weight:600;color:var(--ink-soft);}
.nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
.nav a:hover{color:var(--ink);background:rgba(203,242,74,.35);}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1);}
.nav a.is-active{color:var(--ink);font-weight:800;}
.header-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:8px;border:1px solid rgba(16,17,18,.16);font-size:14px;font-weight:700;}
.nav-toggle:hover{border-color:var(--ink);}

/* Hero */
.hero{position:relative;overflow:hidden;padding:80px 0 88px;}
.hero::before{content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(203,242,74,.55),rgba(203,242,74,0) 68%);pointer-events:none;}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-copy h1{font-size:clamp(34px,6vw,60px);}
.hero-copy h1 em{font-style:normal;color:var(--orange);}
.hero-lead{margin-top:22px;font-size:clamp(16px,1.6vw,18px);color:var(--ink-soft);max-width:520px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:24px;font-weight:900;letter-spacing:-.02em;}
.hero-stats span{font-size:13px;color:var(--muted);}
.hero-media{position:relative;width:100%;max-width:392px;margin-left:auto;aspect-ratio:9/16;border-radius:var(--r-portrait);overflow:hidden;background:var(--ink);box-shadow:var(--shadow-lg);}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,17,18,.32) 0%,rgba(16,17,18,0) 34%,rgba(16,17,18,.55) 100%);}
.media-badge{position:absolute;left:16px;top:16px;z-index:2;display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:var(--lime);color:#1B2000;font-size:12px;font-weight:800;letter-spacing:.04em;}
.media-bar{position:absolute;left:12px;right:12px;bottom:12px;z-index:2;display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;border-radius:12px;background:rgba(247,245,239,.88);backdrop-filter:blur(6px);font-size:13px;font-weight:600;color:var(--ink);}
.media-bar .play-icon{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--orange);color:#fff;font-size:9px;flex:0 0 auto;}
.media-bar .media-likes{margin-left:auto;color:var(--muted);font-weight:700;}

/* 横向片段卡 */
.rail-wrap{position:relative;}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 20px;scrollbar-width:none;}
.rail::-webkit-scrollbar{display:none;}
.rail-card{flex:0 0 clamp(190px,23%,250px);scroll-snap-align:start;}
.rail-cover{position:relative;display:block;aspect-ratio:9/16;border-radius:var(--r-portrait);overflow:hidden;background:var(--ink);box-shadow:var(--shadow-sm);transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rail-card:hover .rail-cover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.rail-card:hover .rail-cover img{transform:scale(1.04);}
.rail-duration{position:absolute;left:10px;top:10px;padding:2px 9px;border-radius:999px;background:rgba(16,17,18,.72);color:#fff;font-size:11px;font-weight:700;letter-spacing:.04em;}
.rail-body{padding:14px 4px 0;}
.rail-title{font-size:15px;font-weight:800;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rail-meta{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:12px;color:var(--muted);}
.rail-arrows{display:flex;gap:8px;}
.rail-arrow{width:40px;height:40px;border-radius:50%;border:1px solid rgba(16,17,18,.16);display:inline-flex;align-items:center;justify-content:center;font-size:15px;background:var(--card);transition:all .2s var(--ease);}
.rail-arrow:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);}

/* 编号清单 */
.num-list{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;}
.num-item{display:grid;grid-template-columns:64px 1fr 64px 22px;align-items:center;gap:18px;padding:22px 12px;border-bottom:1px solid var(--line);transition:background-color .22s var(--ease);border-radius:8px;}
.num-item:hover{background:var(--paper-2);}
.num-index{font-size:40px;font-weight:900;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(16,17,18,.28);transition:color .22s var(--ease),-webkit-text-stroke-color .22s var(--ease);}
.num-item:hover .num-index{color:var(--orange);-webkit-text-stroke-color:var(--orange);}
.num-title{font-size:17px;font-weight:800;}
.num-desc{font-size:14px;color:var(--muted);line-height:1.7;margin-top:4px;}
.num-thumb{width:64px;height:64px;border-radius:var(--r-img);object-fit:cover;}
.num-arrow{font-size:16px;color:var(--orange);transition:transform .22s var(--ease);}
.num-item:hover .num-arrow{transform:translateX(4px);}

/* CMS 资讯列表 */
.post-list{border-top:1px solid var(--line);}
.post-item{display:grid;grid-template-columns:1fr 132px;gap:28px;align-items:center;padding:26px 12px;border-bottom:1px solid var(--line);border-radius:8px;transition:background-color .22s var(--ease);}
.post-item:hover{background:var(--card);}
.post-title{font-size:18px;font-weight:800;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-item:hover .post-title{color:var(--orange-dark);}
.post-summary{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:14px;font-size:12px;color:var(--muted);}
.post-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--orange);transition:transform .22s var(--ease);}
.post-item:hover .post-arrow{transform:translateX(4px);}
.post-thumb{width:132px;height:88px;border-radius:var(--r-img);object-fit:cover;box-shadow:var(--shadow-sm);}
.empty-state{padding:48px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);color:var(--muted);}
.empty-state strong{display:block;color:var(--ink);font-size:16px;margin-bottom:6px;}

/* 口碑条 */
.marquee{overflow:hidden;position:relative;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);}
.marquee-track{display:flex;gap:20px;width:max-content;animation:slide 42s linear infinite;}
.marquee:hover .marquee-track{animation-play-state:paused;}
@keyframes slide{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.quote-card{width:340px;flex:0 0 auto;background:var(--card);border:var(--bd);border-radius:var(--r-card);padding:26px 24px 22px;box-shadow:var(--shadow-sm);}
.quote-mark{font-size:56px;line-height:.7;color:rgba(255,75,18,.30);font-weight:900;}
.quote-text{font-size:15px;line-height:1.85;color:var(--ink-soft);margin-top:10px;}
.quote-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.quote-name{font-weight:800;color:var(--ink);}
.stars{color:var(--orange);letter-spacing:2px;font-size:13px;}

/* CTA 转化带 */
.cta-band{background:var(--ink);color:#fff;border-radius:24px;padding:56px;display:grid;grid-template-columns:1fr 200px;gap:48px;align-items:center;overflow:hidden;position:relative;}
.cta-band::before{content:"";position:absolute;left:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,75,18,.45),rgba(255,75,18,0) 70%);}
.cta-band h2{position:relative;font-size:clamp(28px,4vw,46px);color:#fff;}
.cta-band p{position:relative;color:rgba(255,255,255,.72);margin-top:16px;font-size:15px;max-width:560px;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.cta-thumb{position:relative;width:200px;aspect-ratio:9/16;border-radius:var(--r-portrait);overflow:hidden;box-shadow:0 20px 48px rgba(0,0,0,.4);}
.cta-thumb img{width:100%;height:100%;object-fit:cover;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 4px;font-size:17px;font-weight:800;cursor:pointer;list-style:none;transition:color .2s var(--ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--orange);transition:transform .24s var(--ease);flex:0 0 auto;line-height:1;}
.faq-item[open] summary{color:var(--orange-dark);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 4px 26px;font-size:15px;line-height:1.9;color:var(--ink-soft);max-width:840px;animation:fade .26s var(--ease);}
@keyframes fade{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:900;color:#fff;letter-spacing:-.02em;}
.footer-brand .logo-mark{background:var(--orange);color:#fff;}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.9;max-width:320px;color:rgba(255,255,255,.6);}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.04em;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--orange);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);display:flex;gap:8px;}
.footer-contact strong{color:#fff;font-weight:700;}
.footer-bottom{margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;font-size:12px;color:rgba(255,255,255,.42);}
.back-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:8px 18px;transition:all .2s var(--ease);}
.back-top:hover{color:#fff;border-color:var(--orange);background:rgba(255,75,18,.18);}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-media{margin:0 auto;max-width:340px;}
  .num-list{grid-template-columns:1fr;gap:0;}
  .cta-band{grid-template-columns:1fr;padding:44px;}
  .cta-thumb{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .section{padding:72px 0;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav{position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;background:var(--paper-2);border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);padding:14px 20px 22px;display:none;}
  .nav.is-open{display:flex;}
  .nav a{height:46px;justify-content:flex-start;padding:0 14px;font-size:16px;}
  .nav a::after{display:none;}
  .nav a.is-active{background:rgba(255,75,18,.10);color:var(--orange-dark);}
  .header-cta .btn{display:none;}
  .nav.is-open .btn-block{display:inline-flex;margin-top:10px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .hero{padding:52px 0 64px;}
  .hero-stats{gap:24px;}
  .hero-stats strong{font-size:20px;}
  .post-item{grid-template-columns:1fr;gap:14px;}
  .post-thumb{width:100%;height:170px;order:-1;}
  .rail-card{flex:0 0 78%;}
  .rail-arrows{display:none;}
  .num-item{grid-template-columns:48px 1fr 20px;gap:14px;}
  .num-index{font-size:30px;}
  .num-thumb{display:none;}
  .quote-card{width:280px;}
  .cta-band{padding:32px 24px;border-radius:18px;}
  .faq-item summary{font-size:16px;padding:20px 2px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#101112;
  --ink-soft:#22232a;
  --paper:#F7F5EF;
  --paper-2:#FBF9F4;
  --orange:#FF4B12;
  --orange-dark:#E23E08;
  --lime:#CBF24A;
  --muted:#6E6A63;
  --line:#E2DED5;
  --card:#FFFFFF;
  --danger:#C8321E;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(16,17,18,.05);
  --shadow-2:0 14px 32px rgba(16,17,18,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-0.02em;line-height:1.15}
p{margin:0}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- 按钮 / 标签 ---------- */
.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;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,75,18,.24)}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 12px 26px rgba(255,75,18,.30)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{border-color:rgba(255,255,255,.42);color:#fff;background:transparent}
.btn-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px}
.btn-block{width:100%}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.08em;
  background:rgba(255,75,18,.10);color:var(--orange-dark);
}
.pill-lime{background:var(--lime);color:#2a3306;letter-spacing:.04em}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--orange);
  transition:gap .22s var(--ease),opacity .22s var(--ease);
}
.link-arrow:hover{gap:14px;opacity:.86}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,239,.90);
  backdrop-filter:saturate(180%) blur(8px);
  -webkit-backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;position:relative}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:900;letter-spacing:-0.02em;white-space:nowrap}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;
  background:var(--orange);color:#fff;
  font-size:15px;font-weight:900;letter-spacing:0;
  box-shadow:0 4px 12px rgba(255,75,18,.30);
}
.nav{display:flex;align-items:center;gap:28px}
.nav a{position:relative;font-size:15px;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav a:hover{color:var(--orange)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--orange)}
.nav a.btn::after{display:none}
.nav .btn-block{display:none}
.header-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--card);font-size:14px;font-weight:700;box-shadow:var(--shadow-1);
}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--paper-2)}
.crumb-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 0;font-size:13px;color:var(--muted)}
.crumb-inner a{color:var(--muted);transition:color .2s var(--ease)}
.crumb-inner a:hover{color:var(--orange)}
.crumb-sep{opacity:.5}
.crumb-current{color:var(--ink);font-weight:700;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-wrap{padding:44px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-head{margin-bottom:32px}
.article-head .pill{margin-bottom:18px}
.article-head h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.22;
  letter-spacing:-0.02em;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta b{color:var(--ink);font-weight:700}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line)}

/* ---------- 正文 ---------- */
.article-content{
  max-width:760px;
  font-size:18px;line-height:1.9;color:var(--ink-soft);
  word-break:break-word;
}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.35em}
.article-content h2{
  font-size:clamp(22px,3vw,28px);line-height:1.32;font-weight:800;color:var(--ink);
  margin:2.2em 0 .8em;padding-left:14px;border-left:3px solid var(--orange);
}
.article-content h3{font-size:20px;font-weight:800;color:var(--ink);margin:1.9em 0 .6em}
.article-content h4{font-size:17px;font-weight:800;color:var(--ink);margin:1.6em 0 .5em}
.article-content ul,.article-content ol{margin:0 0 1.4em;padding-left:0}
.article-content ul li{position:relative;padding-left:20px;margin:.45em 0}
.article-content ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:7px;height:7px;
  border-radius:2px;background:var(--orange);
}
.article-content ol{list-style:decimal;padding-left:1.4em}
.article-content ol li{margin:.45em 0;padding-left:4px}
.article-content ol li::marker{color:var(--orange);font-weight:800}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;
  border-left:3px solid var(--orange);background:var(--paper-2);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:#3c3d43;font-size:17px;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content a{color:var(--orange);text-decoration:underline;text-underline-offset:3px;transition:color .2s var(--ease)}
.article-content a:hover{color:var(--orange-dark)}
.article-content img{border-radius:var(--radius-md);margin:1.6em auto;height:auto}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-content th,.article-content td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.article-content th{background:var(--paper-2);font-weight:700;color:var(--ink)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-content code{background:var(--paper-2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:.92em}

/* ---------- 标签 / 尾部 ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.article-tags .tag{
  display:inline-flex;padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--card);
  font-size:13px;font-weight:600;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.article-tags .tag:hover{color:var(--orange);border-color:var(--orange);transform:translateY(-2px)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--card);box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,75,18,.4)}
.post-nav .np-label{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:700}
.post-nav .np-title{font-size:15px;font-weight:700;color:var(--ink)}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--orange)}
.toc-list{display:flex;flex-direction:column;gap:2px;font-size:14px}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;color:var(--muted);
  border-left:2px solid transparent;line-height:1.5;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{color:var(--ink);background:var(--paper-2)}
.toc-list a.is-here{color:var(--orange);border-left-color:var(--orange);background:var(--paper-2);font-weight:700}
.side-links{display:flex;flex-direction:column;gap:12px}
.side-links a{display:flex;gap:12px;align-items:center;font-size:14px;font-weight:600;color:var(--ink-soft);transition:color .2s var(--ease),transform .2s var(--ease)}
.side-links a:hover{color:var(--orange);transform:translateX(3px)}
.side-links img{width:52px;height:52px;border-radius:10px;object-fit:cover;flex:0 0 auto}
.side-note{font-size:13px;line-height:1.8;color:var(--muted)}
.side-note strong{color:var(--ink)}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;padding:56px 28px;text-align:center;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,75,18,.10);color:var(--orange);font-size:24px;font-weight:900;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}
.section-head h2{font-size:clamp(24px,3.2vw,34px);letter-spacing:-0.02em}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.rel-body .pill{align-self:flex-start}
.rel-body h3{font-size:16px;line-height:1.5;font-weight:800}
.rel-body span{font-size:13px;color:var(--muted)}

/* ---------- 转化带 ---------- */
.cta-band{margin-top:80px;background:var(--ink);color:#fff;padding:64px 0}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;align-items:center}
.cta-inner h2{font-size:clamp(26px,4vw,42px);line-height:1.14;letter-spacing:-0.02em}
.cta-inner p{margin-top:16px;font-size:15px;color:rgba(255,255,255,.68);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-visual{
  border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:9/16;
  border:1px solid rgba(255,255,255,.14);
}
.cta-visual img{width:100%;height:100%;object-fit:cover}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:900;color:#fff}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--orange)}
.footer-contact li strong{color:rgba(255,255,255,.86);font-weight:700}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(255,255,255,.45);
}
.back-top{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.back-top:hover{color:var(--orange)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr) 272px;gap:40px}
  .rel-grid{gap:18px}
}
@media (max-width:900px){
  .nav{
    position:absolute;left:24px;right:24px;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-2);padding:12px;z-index:90;
  }
  .nav.is-open{display:flex}
  .nav a{padding:11px 12px;border-radius:9px}
  .nav a::after{display:none}
  .nav a:hover,.nav a.is-active{background:var(--paper-2)}
  .nav .btn-block{display:inline-flex;margin-top:6px;justify-content:center}
  .nav-toggle{display:inline-flex}
  .header-cta .btn{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .article-side > *{flex:1 1 260px}
  .article-content{max-width:none}
  .rel-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-visual{max-width:200px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .related{padding-top:56px}
  .cta-band{margin-top:56px;padding:52px 0}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .header-inner{height:58px;gap:12px}
  .logo{font-size:15px}
  .logo-mark{width:28px;height:28px;font-size:13px;border-radius:8px}
  .article-wrap{padding-top:30px}
  .article-content{font-size:16.5px;line-height:1.85}
  .article-head h1{font-size:26px}
  .article-meta{font-size:12px;gap:8px 14px}
  .rel-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#101112;
  --ink-soft:#2A2A28;
  --paper:#F7F5EF;
  --paper-light:#FBF9F4;
  --white:#FFFFFF;
  --orange:#FF4B12;
  --orange-dark:#E23B08;
  --lime:#CBF24A;
  --muted:#6E6A63;
  --line:#E2DED5;
  --danger:#C8321E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 2px 10px rgba(16,17,18,.05);
  --shadow-md:0 14px 32px rgba(16,17,18,.10);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--orange);text-decoration:none;}
a:hover{color:var(--orange-dark);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,75,18,.22);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,75,18,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,75,18,.2);}
.btn-ghost{background:transparent;border-color:rgba(16,17,18,.18);color:var(--ink);}
.btn-ghost:hover{border-color:var(--ink);background:rgba(16,17,18,.03);color:var(--ink);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn .arrow{transition:transform .2s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,239,.88);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;position:relative;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  text-decoration:none;white-space:nowrap;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:var(--ink);color:var(--lime);
  font-size:14px;font-weight:900;letter-spacing:0;line-height:1;
}
.nav{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav a{
  position:relative;display:inline-block;
  color:var(--ink-soft);font-size:15px;font-weight:600;
  padding:6px 0;text-decoration:none;
  transition:color .2s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav a:hover{color:var(--ink);}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1);}
.nav a.is-active{color:var(--ink);font-weight:800;}
.nav a.btn-block{display:none;}
.header-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  height:38px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(16,17,18,.18);
  font-size:14px;font-weight:700;color:var(--ink);
  background:var(--white);
}
.nav-toggle:hover{border-color:var(--ink);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:24px 0 0;}
.breadcrumb a{color:var(--muted);text-decoration:none;}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--ink);font-weight:700;}

/* ---------- 区块基础 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--paper-light);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  color:var(--orange);margin-bottom:16px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--orange);display:inline-block;}
.section-title{font-size:clamp(26px,3.6vw,40px);}
.section-desc{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.9;}

/* ---------- 首屏 ---------- */
.page-hero{padding-bottom:96px;}
.hero-split{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  margin-top:32px;
}
.hero-copy h1{
  font-size:clamp(34px,4.6vw,58px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.08;
}
.hero-copy h1 .hl{
  position:relative;white-space:nowrap;
}
.hero-copy h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.08em;height:.24em;
  background:var(--lime);z-index:-1;border-radius:2px;
}
.hero-lead{margin-top:22px;font-size:17px;line-height:1.9;color:var(--ink-soft);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.hero-stat .num{font-size:26px;font-weight:900;letter-spacing:-.02em;line-height:1.1;color:var(--ink);}
.hero-stat .num em{font-style:normal;color:var(--orange);font-size:16px;margin-left:2px;}
.hero-stat .lbl{font-size:13px;color:var(--muted);margin-top:4px;}
.hero-figure{
  position:relative;margin:0;border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow-md);background:var(--white);
}
.hero-figure img{width:100%;aspect-ratio:4/3.4;object-fit:cover;transition:transform .26s var(--ease);}
.hero-figure:hover img{transform:scale(1.03);}
.hero-figure figcaption{
  position:absolute;left:16px;right:16px;bottom:16px;
  background:rgba(251,249,244,.92);
  backdrop-filter:blur(6px);
  border-radius:12px;padding:12px 16px;
  font-size:13px;color:var(--ink-soft);line-height:1.6;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.hero-figure figcaption .tag{
  background:var(--orange);color:#fff;font-size:11px;font-weight:800;
  padding:3px 9px;border-radius:var(--radius-pill);white-space:nowrap;letter-spacing:.04em;
}

/* ---------- 分类胶囊组 ---------- */
.pill-group{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;}
.pill{
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:700;color:var(--ink-soft);
  background:var(--white);border:1px solid var(--line);
  text-decoration:none;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.pill:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-2px);}
.pill.is-current{background:var(--ink);color:#fff;border-color:var(--ink);}
.pill.is-current:hover{color:#fff;}

/* ---------- 左图右文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.split-figure{margin:0;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);background:var(--white);position:relative;}
.split-figure img{width:100%;aspect-ratio:4/3.2;object-fit:cover;}
.split-figure .badge-float{
  position:absolute;top:16px;left:16px;
  background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:800;letter-spacing:.06em;
  padding:6px 12px;border-radius:var(--radius-pill);
}
.split-body h2{font-size:clamp(26px,3.2vw,36px);}
.split-body > p{margin-top:18px;color:var(--muted);font-size:16px;line-height:1.95;}
.check-list{margin-top:32px;border-top:1px solid var(--line);}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.check-list li:hover{background:var(--paper-light);}
.check-list .mark{
  flex:0 0 auto;width:22px;height:22px;margin-top:3px;border-radius:50%;
  background:rgba(255,75,18,.12);color:var(--orange);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:900;
}
.check-list .txt strong{display:block;font-size:15px;font-weight:800;color:var(--ink);}
.check-list .txt span{display:block;font-size:14px;color:var(--muted);margin-top:2px;line-height:1.7;}

/* ---------- 编号清单 ---------- */
.num-list{margin-top:8px;border-top:1px solid var(--line);}
.num-item{
  display:grid;grid-template-columns:96px 1fr 88px 32px;
  align-items:center;gap:24px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.num-item:hover{background:var(--paper);}
.num-item .idx{
  font-size:44px;font-weight:900;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px rgba(16,17,18,.28);
  transition:color .2s var(--ease),-webkit-text-stroke-color .2s var(--ease);
}
.num-item:hover .idx{color:var(--orange);-webkit-text-stroke-color:var(--orange);}
.num-item h3{font-size:19px;font-weight:800;}
.num-item p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.75;}
.num-item .thumb{
  width:88px;height:88px;border-radius:var(--radius-img);overflow:hidden;background:var(--paper-light);
}
.num-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease);}
.num-item:hover .thumb img{transform:scale(1.06);}
.num-item .go{
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:14px;transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.num-item:hover .go{background:var(--orange);border-color:var(--orange);color:#fff;transform:translateX(4px);}

/* ---------- 节奏流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.flow-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  position:relative;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,75,18,.4);}
.flow-card .step{
  display:inline-flex;align-items:center;justify-content:center;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:rgba(255,75,18,.1);color:var(--orange);
  font-size:12px;font-weight:800;letter-spacing:.06em;
}
.flow-card h3{margin-top:18px;font-size:19px;}
.flow-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.flow-card .time{
  display:block;margin-top:20px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink);font-weight:700;
}

/* ---------- 数据徽章条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:56px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--white);overflow:hidden;box-shadow:var(--shadow-sm);
}
.metric{padding:28px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric .val{font-size:clamp(24px,2.6vw,32px);font-weight:900;letter-spacing:-.02em;line-height:1.1;}
.metric .val em{font-style:normal;color:var(--orange);font-size:15px;margin-left:2px;font-weight:800;}
.metric .cap{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- 口碑条 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.quote{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 26px 26px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.quote::before{
  content:"“";position:absolute;top:-6px;left:18px;
  font-size:76px;line-height:1;color:rgba(255,75,18,.18);
  font-family:Georgia,serif;
}
.quote p{position:relative;font-size:15px;line-height:1.9;color:var(--ink-soft);}
.quote .who{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);}
.quote .who .name{font-size:14px;font-weight:800;color:var(--ink);}
.quote .who .city{font-size:13px;color:var(--muted);}
.quote .stars{margin-left:auto;color:var(--orange);font-size:13px;letter-spacing:2px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px;max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;
  font-size:17px;font-weight:800;color:var(--ink);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--orange);}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--ink);transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:var(--orange);border-color:var(--orange);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease),opacity .28s var(--ease);opacity:0;}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 0 24px;font-size:15px;line-height:1.95;color:var(--muted);max-width:760px;}

/* ---------- 转化带 ---------- */
.cta-band{background:var(--ink);color:#fff;padding:96px 0;}
.cta-inner{display:grid;grid-template-columns:1fr 260px;gap:56px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(30px,4.4vw,52px);line-height:1.1;}
.cta-band p{margin-top:18px;color:rgba(255,255,255,.72);font-size:16px;line-height:1.9;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cta-card{
  border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);box-shadow:0 20px 50px rgba(0,0,0,.35);
}
.cta-card img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .26s var(--ease);}
.cta-card:hover img{transform:scale(1.04);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:#fff;text-decoration:none;
}
.footer-brand:hover{color:var(--lime);}
.footer-brand .logo-mark{background:var(--lime);color:var(--ink);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.04em;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px;text-decoration:none;transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--orange);}
.footer-contact li{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-contact strong{color:rgba(255,255,255,.9);font-weight:700;}
.footer-bottom{
  margin-top:56px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:12px;color:rgba(255,255,255,.45);
}
.back-top{
  display:inline-flex;align-items:center;gap:6px;
  color:rgba(255,255,255,.7);font-size:12px;font-weight:700;text-decoration:none;
  padding:8px 14px;border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.18);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.back-top:hover{color:#fff;border-color:var(--orange);background:rgba(255,75,18,.18);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .26s var(--ease),transform .26s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-split{gap:40px;}
  .split{gap:40px;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:900px){
  .header-inner{height:56px;gap:12px;}
  .nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    margin-left:0;padding:14px 20px 22px;
    background:var(--paper-light);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);display:none;
  }
  .nav.is-open{display:flex;}
  .nav a{padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;}
  .nav a::after{display:none;}
  .nav a.is-active{color:var(--orange);}
  .nav a.btn-block{
    display:inline-flex;margin-top:14px;justify-content:center;
    border-bottom:0;color:#fff;padding:0 22px;height:46px;
  }
  .header-cta .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-split{grid-template-columns:1fr;gap:36px;}
  .hero-figure img{aspect-ratio:4/3;}
  .split{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr 1fr;}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .quote-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .cta-card{max-width:260px;}
  .section{padding:72px 0;}
  .page-hero{padding-bottom:72px;}
  .num-item{grid-template-columns:64px 1fr 64px;gap:18px;}
  .num-item .idx{font-size:34px;}
  .num-item .thumb{width:64px;height:64px;display:none;}
  .num-item .go{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero{padding-bottom:56px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .hero-stats{gap:20px;}
  .hero-stat{flex:1 1 40%;}
  .hero-figure figcaption{font-size:12px;left:12px;right:12px;bottom:12px;padding:10px 12px;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .num-item{grid-template-columns:52px 1fr;gap:14px;padding:20px 0;}
  .num-item .idx{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:56px 0;}
  .site-footer{padding-top:56px;}
  .pill{height:34px;padding:0 14px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --paper:#F7F5EF;
  --paper-2:#FBF9F4;
  --ink:#101112;
  --ink-soft:#2A2B2D;
  --muted:#6E6A63;
  --line:#E2DED5;
  --accent:#FF4B12;
  --accent-dark:#D93A08;
  --lime:#CBF24A;
  --white:#FFFFFF;
  --danger:#C8321E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --radius-btn:10px;
  --shadow-1:0 2px 10px rgba(16,17,18,.05);
  --shadow-2:0 14px 32px rgba(16,17,18,.10);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);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:rgba(247,245,239,.9);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.02em;color:var(--ink)}
.logo-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--ink);color:var(--lime);font-weight:900;font-size:14px;letter-spacing:.02em;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.logo:hover .logo-mark{transform:rotate(-6deg);background:var(--accent);color:#fff}
.nav{display:flex;align-items:center;gap:4px}
.nav > a{
  position:relative;padding:8px 12px;border-radius:8px;font-size:15px;color:var(--ink-soft);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav > a:hover{color:var(--ink);background:rgba(203,242,74,.35)}
.nav > a.is-active{color:var(--ink);font-weight:700}
.nav > a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);
}
.nav > .btn{display:none}
.header-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--white);border:1px solid var(--line);border-radius:9px;
  font-size:14px;font-weight:700;color:var(--ink);cursor:pointer;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink);transform:translateY(-1px)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,75,18,.22)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,75,18,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,75,18,.2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(16,17,18,.24)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-light:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}

/* ---------- hero ---------- */
.page-hero{
  position:relative;padding:60px 0 72px;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(247,245,239,.95) 0%,rgba(247,245,239,.88) 55%,rgba(247,245,239,.96) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span[aria-hidden]{opacity:.55}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy h1{
  font-size:clamp(32px,4.6vw,52px);line-height:1.1;letter-spacing:-.02em;font-weight:900;
}
.hero-lead{margin-top:18px;font-size:17px;color:var(--muted);max-width:580px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--radius-pill);
  background:rgba(203,242,74,.55);border:1px solid rgba(16,17,18,.08);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;color:var(--ink);
}
.badge--plain{background:var(--white);border-color:var(--line);color:var(--ink-soft)}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-2);
  aspect-ratio:4/5;background:var(--white);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media figcaption{
  position:absolute;left:14px;right:14px;bottom:14px;
  background:rgba(251,249,244,.92);border:1px solid rgba(16,17,18,.06);
  border-radius:12px;padding:10px 14px;font-size:12.5px;color:var(--ink-soft);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.hero-media .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto}

/* ---------- pills ---------- */
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.pills a{
  padding:9px 16px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--white);
  font-size:14px;font-weight:600;color:var(--ink-soft);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.pills a:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}
.pills a.is-active{background:var(--ink);border-color:var(--ink);color:#fff}
.pills a.is-active:hover{transform:none}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:clamp(26px,3.6vw,40px);line-height:1.16;letter-spacing:-.02em;font-weight:900;margin-top:12px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}

/* ---------- timeline ---------- */
.timeline{position:relative;max-width:900px}
.tl-item{position:relative;padding-left:64px;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:15px;top:36px;bottom:0;width:2px;background:var(--line);
}
.tl-item:last-child::before{display:none}
.tl-dot{
  position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:50%;
  background:var(--white);border:2px solid var(--accent);display:grid;place-items:center;
  box-shadow:0 2px 10px rgba(255,75,18,.14);
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.tl-dot::after{content:"";width:9px;height:9px;border-radius:50%;background:var(--accent);transition:background .24s var(--ease)}
.tl-item:hover .tl-dot{transform:scale(1.08);background:var(--lime)}
.tl-item:hover .tl-dot::after{background:var(--ink)}
.tl-body{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.tl-item:hover .tl-body{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,75,18,.35)}
.tl-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--accent);
  background:rgba(255,75,18,.09);border-radius:var(--radius-pill);padding:4px 11px;margin-bottom:10px;
}
.tl-body h3{font-size:20px;font-weight:800;letter-spacing:-.01em;line-height:1.35}
.tl-body p{margin-top:8px;font-size:15px;color:var(--muted)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,75,18,.4)}
.step-num{
  display:block;font-size:34px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px rgba(16,17,18,.3);
  transition:color .24s var(--ease),-webkit-text-stroke-color .24s var(--ease);
}
.step:hover .step-num{color:var(--accent);-webkit-text-stroke:1.4px var(--accent)}
.step h3{font-size:17px;font-weight:800;margin-top:16px}
.step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- notice list ---------- */
.notice-list{border-top:1px solid var(--line);max-width:980px}
.notice-item{
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;
  padding:22px 8px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),padding .2s var(--ease);
}
.notice-item:hover{background:var(--paper-2);padding-left:16px}
.notice-tag{
  font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--accent);
  background:rgba(255,75,18,.09);border:1px solid rgba(255,75,18,.16);
  padding:6px 12px;border-radius:var(--radius-pill);white-space:nowrap;
}
.notice-item h3{font-size:18px;font-weight:800;letter-spacing:-.01em}
.notice-item p{font-size:14px;color:var(--muted);margin-top:4px}
.notice-arrow{color:var(--muted);font-size:18px;font-weight:700;transition:transform .22s var(--ease),color .22s var(--ease)}
.notice-item:hover .notice-arrow{transform:translateX(5px);color:var(--accent)}

/* ---------- split / checklist ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.media-card{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-2);background:var(--white)}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.media-card:hover img{transform:scale(1.03)}
.split-copy h2{font-size:clamp(26px,3.4vw,36px);line-height:1.18;letter-spacing:-.02em;font-weight:900;margin-top:12px}
.split-copy > p{margin-top:14px;color:var(--muted)}
.checklist{margin-top:26px;border-top:1px solid var(--line)}
.checklist li{display:flex;gap:12px;padding:16px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-soft)}
.checklist li::before{
  content:"✓";color:var(--accent);font-weight:900;flex:0 0 auto;line-height:1.8;
}

/* ---------- faq ---------- */
.faq{max-width:900px;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:22px 4px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-q .icon{flex:0 0 auto;color:var(--accent);font-size:15px;transition:transform .24s var(--ease)}
.faq-item.is-open .faq-q .icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:760px}

/* ---------- cta ---------- */
.cta-band{
  background:var(--ink);color:#fff;border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1.45fr .55fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(203,242,74,.22),transparent 70%);
}
.cta-band h2{font-size:clamp(26px,3.4vw,38px);line-height:1.16;letter-spacing:-.02em;font-weight:900;position:relative}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.74);font-size:16px;position:relative;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;position:relative}
.cta-thumb{
  position:relative;border-radius:16px;overflow:hidden;aspect-ratio:9/16;max-width:210px;margin-left:auto;
  box-shadow:0 20px 44px rgba(0,0,0,.4);
}
.cta-thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- footer ---------- */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.02em}
.footer-desc{margin-top:14px;font-size:14px;color:var(--muted);max-width:320px}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:.04em;margin-bottom:16px;color:var(--ink)}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--muted);line-height:1.7}
.footer-col a{transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-contact strong{color:var(--ink);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);
}
.back-top{font-weight:700;color:var(--muted);transition:color .2s var(--ease)}
.back-top:hover{color:var(--accent)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr 340px;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:44px;grid-template-columns:1fr;gap:32px}
  .cta-thumb{margin:0;max-width:170px}
}
@media (max-width:900px){
  .nav{
    position:absolute;top:calc(100% + 8px);left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--white);border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--shadow-2);padding:12px;display:none;
  }
  .nav.is-open{display:flex}
  .nav > a{padding:12px 14px;font-size:15px}
  .nav > a.is-active{background:var(--paper-2);color:var(--accent)}
  .nav > a.is-active::after{display:none}
  .nav > .btn{display:inline-flex;margin-top:8px}
  .nav-toggle{display:inline-flex}
  .header-cta .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{aspect-ratio:4/3;max-width:520px}
  .section{padding:72px 0}
  .page-hero{padding:40px 0 56px}
  .split{grid-template-columns:1fr;gap:28px}
  .split .media-card{order:-1}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .header-inner{height:56px;gap:12px}
  .logo{font-size:15px;gap:8px}
  .logo-mark{width:30px;height:30px;font-size:12.5px;border-radius:9px}
  .section{padding:56px 0}
  .hero-lead{font-size:16px}
  .section-head{margin-bottom:32px}
  .steps{grid-template-columns:1fr}
  .tl-item{padding-left:48px;padding-bottom:30px}
  .tl-dot{width:26px;height:26px}
  .tl-dot::after{width:7px;height:7px}
  .tl-item::before{left:12px;top:30px}
  .tl-body{padding:20px}
  .notice-item{grid-template-columns:1fr;gap:10px;padding:20px 4px}
  .notice-arrow{display:none}
  .notice-item:hover{padding-left:4px}
  .cta-band{padding:32px 24px;border-radius:18px}
  .cta-actions .btn{width:100%}
  .cta-thumb{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:32px;font-size:11.5px}
  .pills a{font-size:13px;padding:8px 14px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#101112;
  --ink-80:rgba(16,17,18,.8);
  --ink-60:rgba(16,17,18,.6);
  --paper:#F7F5EF;
  --paper-2:#FBF9F4;
  --white:#FFFFFF;
  --orange:#FF4B12;
  --orange-dark:#E03D08;
  --lime:#CBF24A;
  --gray:#6E6A63;
  --line:#E2DED5;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-sm:0 2px 10px rgba(16,17,18,.05);
  --shadow-lg:0 14px 32px rgba(16,17,18,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,239,.9);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  background:var(--orange);color:#fff;
  border-radius:10px;font-size:15px;font-weight:900;
  letter-spacing:-.03em;
}
.nav{display:flex;align-items:center;gap:26px}
.nav a{
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink-80);
  padding:6px 0;
}
.nav a:hover{color:var(--ink)}
.nav a.is-active{color:var(--ink);font-weight:800}
.nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--orange);border-radius:2px;
}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  background:var(--white);border:1px solid var(--line);border-radius:10px;
  padding:8px 14px;font-size:14px;font-weight:700;
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.4;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,75,18,.22)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(255,75,18,.2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(16,17,18,.2)}
.btn-ghost:hover{border-color:var(--ink);background:var(--white);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- hero ---------- */
.page-hero{
  padding:56px 0 72px;
  background:linear-gradient(180deg,var(--paper-2) 0%,var(--paper) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--gray);margin-bottom:22px}
.crumbs a:hover{color:var(--orange)}
.crumbs span[aria-current]{color:var(--ink);font-weight:600}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;
  color:var(--orange);margin-bottom:14px;
}
.eyebrow::before{
  content:"";display:inline-block;width:18px;height:2px;background:var(--orange);
  vertical-align:middle;margin-right:8px;transform:translateY(-2px);
}
h1{
  font-size:clamp(32px,4.6vw,52px);
  font-weight:900;line-height:1.14;letter-spacing:-.02em;
}
.hero-lead{
  margin-top:20px;max-width:34em;
  font-size:17px;line-height:1.9;color:var(--gray);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px}
.hero-stats li strong{display:block;font-size:24px;font-weight:900;letter-spacing:-.02em;line-height:1.2}
.hero-stats li span{display:block;margin-top:4px;font-size:13px;color:var(--gray)}
.cat-switch{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.cat-pill{
  padding:8px 18px;border-radius:999px;border:1px solid var(--line);
  background:var(--white);font-size:14px;font-weight:600;color:var(--gray);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.cat-pill:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px)}
.cat-pill.is-active{background:var(--ink);border-color:var(--ink);color:#fff}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/5;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
}
.media-bar{
  position:absolute;left:14px;right:14px;bottom:14px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;border-radius:var(--radius-sm);
  background:rgba(251,249,244,.93);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid rgba(226,222,213,.9);
  font-size:13px;font-weight:600;color:var(--ink);
}
.chip{
  display:inline-flex;align-items:center;
  padding:2px 10px;border-radius:999px;
  font-size:12px;font-weight:800;letter-spacing:.02em;
}
.chip-lime{background:var(--lime);color:var(--ink)}
.media-dot{display:inline-flex;align-items:center;gap:6px;color:var(--gray);font-weight:600}
.media-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3.2vw,38px);font-weight:900;line-height:1.22;letter-spacing:-.02em}
.section-sub{margin-top:16px;font-size:16px;line-height:1.9;color:var(--gray)}

/* ---------- compare ---------- */
.compare{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare-row{display:grid;grid-template-columns:1fr 1fr;transition:background .2s var(--ease)}
.compare-row + .compare-row{border-top:1px solid var(--line)}
.compare-row > div{padding:22px 28px;font-size:15px;line-height:1.85}
.compare-row > div + div{border-left:1px solid var(--line)}
.compare-head > div{
  background:var(--ink);color:#fff;padding:16px 28px;
  font-size:14px;font-weight:800;letter-spacing:.03em;
}
.compare-head > div + div{border-left:1px solid rgba(255,255,255,.16)}
.compare-row:not(.compare-head):hover{background:var(--paper-2)}
.cell-tag{
  display:inline-flex;align-items:center;
  padding:1px 9px;margin-right:8px;border-radius:999px;
  background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:800;vertical-align:1px;
}

/* ---------- rank list ---------- */
.rank-list{border-top:1px solid var(--line)}
.rank-list li{
  display:grid;grid-template-columns:88px 1fr auto;gap:26px;align-items:center;
  padding:28px 10px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),padding .2s var(--ease);
}
.rank-list li:hover{background:var(--paper-2);padding-left:20px}
.rank-num{
  font-size:40px;font-weight:900;line-height:1;letter-spacing:-.04em;
  color:#DED8CB;transition:color .2s var(--ease);
}
.rank-list li:hover .rank-num{color:var(--orange)}
.rank-body h3{font-size:20px;font-weight:800;letter-spacing:-.01em}
.rank-body p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--gray);max-width:64ch}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);
  font-size:12px;font-weight:700;color:var(--gray);
}

/* ---------- timeline ---------- */
.timeline{border-top:1px solid var(--line)}
.timeline li{
  display:grid;grid-template-columns:180px 1fr;gap:28px;align-items:baseline;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.timeline .tl-time{font-size:15px;font-weight:800;color:var(--orange);letter-spacing:.01em}
.timeline .tl-text{font-size:15px;line-height:1.9;color:var(--ink-80)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:60px;align-items:center}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
}
.point-list{margin-top:34px;border-top:1px solid var(--line)}
.point-list li{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.point-dot{width:8px;height:8px;border-radius:50%;background:var(--orange);margin-top:12px}
.point-list h3{font-size:17px;font-weight:800}
.point-list p{margin-top:6px;font-size:15px;line-height:1.85;color:var(--gray)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  padding:24px 44px 24px 0;position:relative;
  font-size:17px;font-weight:800;line-height:1.6;color:var(--ink);
}
.faq-q:hover{color:var(--orange-dark)}
.faq-q::after{
  content:"";position:absolute;right:8px;top:50%;
  width:12px;height:12px;margin-top:-6px;
  border-right:2px solid var(--gray);border-bottom:2px solid var(--gray);
  transform:rotate(45deg);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-q::after{transform:rotate(-135deg);border-color:var(--orange)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 44px 24px 0;font-size:15px;line-height:1.95;color:var(--gray)}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);color:#fff;padding:88px 0}
.cta-inner{display:grid;grid-template-columns:1.35fr .65fr;gap:56px;align-items:center}
.cta-band .eyebrow{color:var(--lime)}
.cta-band .eyebrow::before{background:var(--lime)}
.cta-band h2{color:#fff;font-size:clamp(28px,4vw,46px);font-weight:900;line-height:1.16;letter-spacing:-.02em}
.cta-band p{margin-top:18px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.72);max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.cta-media img{
  width:100%;aspect-ratio:3/4;object-fit:cover;
  border-radius:var(--radius);border:1px solid rgba(255,255,255,.14);
}

/* ---------- footer ---------- */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800}
.footer-desc{margin-top:16px;max-width:34ch;font-size:14px;line-height:1.9;color:var(--gray)}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:.02em;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--gray)}
.footer-col ul a:hover{color:var(--orange)}
.footer-contact li{font-size:13px;line-height:1.9}
.footer-contact strong{color:var(--ink);font-weight:700}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:12px;color:#9A968D;
}
.back-top{color:var(--gray);font-weight:600}
.back-top:hover{color:var(--orange)}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (min-width:901px){
  .nav .btn-block{display:none}
}
@media (max-width:1024px){
  .hero-grid{gap:40px}
  .split{gap:40px}
  .cta-inner{gap:36px}
}
@media (max-width:900px){
  .header-inner{height:56px}
  .nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    padding:8px 24px 20px;
    background:var(--paper-2);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);
  }
  .nav.is-open{display:flex}
  .nav a{padding:14px 2px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav a.is-active{color:var(--orange)}
  .nav a.is-active::after{display:none}
  .nav .btn{margin-top:18px;border-bottom:0}
  .nav-toggle{display:inline-flex}
  .header-cta .btn-primary{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{max-width:420px}
  .section{padding:64px 0}
  .page-hero{padding:40px 0 52px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-media{max-width:320px}
  .cta-band{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .timeline li{grid-template-columns:150px 1fr;gap:20px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .logo{font-size:16px}
  .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:14px;border-radius:9px}
  .hero-stats{gap:24px}
  .hero-stats li strong{font-size:20px}
  .compare-row{grid-template-columns:1fr}
  .compare-row > div{padding:18px 20px}
  .compare-row > div + div{border-left:0;border-top:1px solid var(--line)}
  .compare-head > div + div{border-left:0;border-top:1px solid rgba(255,255,255,.16)}
  .rank-list li{display:block;padding:22px 4px;gap:0}
  .rank-list li:hover{padding-left:4px}
  .rank-num{font-size:30px;margin-bottom:10px}
  .rank-list li > .tag{margin-top:14px}
  .timeline li{display:block}
  .timeline .tl-time{margin-bottom:6px}
  .faq-q{font-size:16px;padding-right:36px}
  .faq-a p{padding-right:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: category4 */
:root{
  --ink:#101112;
  --ink-soft:#2A2A29;
  --paper:#F7F5EF;
  --paper-2:#FBF9F4;
  --white:#FFFFFF;
  --orange:#FF4B12;
  --orange-deep:#E23C05;
  --lime:#CBF24A;
  --gray:#6E6A63;
  --line:#E2DED5;
  --line-strong:rgba(16,17,18,.14);
  --danger:#C8321E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 2px 10px rgba(16,17,18,.05);
  --shadow-md:0 14px 32px rgba(16,17,18,.10);
  --space:8px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -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;}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.14;}
p{margin:0;}
h1{font-size:clamp(30px,5vw,54px);line-height:1.08;}
h2{font-size:clamp(24px,3.4vw,38px);}
h3{font-size:clamp(18px,2vw,22px);}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--orange);text-transform:uppercase;
  padding:6px 12px;border:1px solid rgba(255,75,18,.28);border-radius:999px;
  background:rgba(255,75,18,.06);
}
.section-head h2{margin-top:18px;}
.section-lead{margin-top:14px;color:var(--gray);font-size:16px;max-width:720px;}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,239,.88);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:64px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:900;font-size:17px;letter-spacing:-.02em;color:var(--ink);
  white-space:nowrap;
}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--ink);color:var(--lime);
  font-size:15px;font-weight:900;letter-spacing:-.03em;line-height:1;
}
.nav{display:flex;align-items:center;gap:22px;}
.nav > a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-soft);
  padding:6px 2px;border-radius:6px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav > a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav > a:hover{color:var(--ink);background:rgba(203,242,74,.28);}
.nav > a:hover::after,.nav > a.is-active::after{transform:scaleX(1);}
.nav > a.is-active{color:var(--ink);font-weight:800;}
.nav .btn{margin-left:6px;}
.header-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:10px 14px;border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  font-size:14px;font-weight:700;background:var(--white);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1.2;
  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-sm{padding:9px 16px;font-size:14px;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 4px 14px rgba(255,75,18,.22);}
.btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,75,18,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}
.btn-text{color:var(--orange);font-weight:800;padding:6px 0;display:inline-flex;align-items:center;gap:6px;}
.btn-text span{transition:transform .2s var(--ease);}
.btn-text:hover span{transform:translateX(4px);}
.btn-block{width:100%;}

/* hero */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.20;filter:grayscale(.25);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,245,239,.96) 0%,rgba(247,245,239,.84) 52%,rgba(247,245,239,.55) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:56px 0 72px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--gray);margin-bottom:26px;
}
.breadcrumb a{color:var(--gray);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--ink);font-weight:700;}
.page-hero h1{margin:16px 0 0;max-width:20ch;}
.page-hero .lead{
  margin-top:20px;max-width:640px;
  font-size:17px;color:var(--ink-soft);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-soft);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.pill:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.pill.is-current{background:var(--ink);color:#fff;border-color:var(--ink);}
.pill.is-current::after{content:"●";color:var(--lime);font-size:9px;line-height:1;}

/* stat grid */
.stat-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
.stat-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,75,18,.35);}
.stat-num{
  font-family:"SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  font-size:clamp(38px,5vw,56px);font-weight:900;line-height:1;
  letter-spacing:-.03em;color:var(--orange);
}
.stat-unit{font-size:15px;font-weight:800;color:var(--ink);margin-left:6px;letter-spacing:0;}
.stat-card h3{margin-top:14px;font-size:17px;}
.stat-card p{margin-top:8px;font-size:14px;color:var(--gray);line-height:1.75;}

/* split 图文交替 */
.split{
  display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;
  padding:56px 0;border-top:1px solid var(--line);
}
.split:first-child{border-top:0;padding-top:0;}
.split:last-child{padding-bottom:0;}
.split.is-reverse .split-media{order:2;}
.split-media{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  background:var(--white);
}
.split-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .32s var(--ease);}
.split-media:hover img{transform:scale(1.04);}
.split-media .media-tag{
  position:absolute;left:16px;top:16px;
  padding:6px 12px;border-radius:999px;
  background:rgba(247,245,239,.92);color:var(--ink);
  font-size:12px;font-weight:800;letter-spacing:.04em;
}
.split-index{
  display:inline-flex;align-items:center;gap:10px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:13px;font-weight:800;color:var(--orange);letter-spacing:.08em;
}
.split-body h3{margin-top:12px;}
.split-body p{margin-top:14px;color:var(--gray);font-size:16px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-soft);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--orange);
}

/* 编号清单 */
.steps{display:grid;gap:0;margin-top:8px;}
.step{
  display:grid;grid-template-columns:88px 1fr;gap:24px;align-items:start;
  padding:28px 0;border-top:1px solid var(--line);
  transition:background .22s var(--ease);
}
.step:last-child{border-bottom:1px solid var(--line);}
.step:hover{background:var(--paper-2);}
.step-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:40px;font-weight:900;line-height:1;color:transparent;
  -webkit-text-stroke:1.4px rgba(255,75,18,.75);letter-spacing:-.03em;
  transition:color .22s var(--ease),-webkit-text-stroke-color .22s var(--ease);
}
.step:hover .step-num{color:var(--orange);-webkit-text-stroke-color:var(--orange);}
.step h3{font-size:19px;}
.step p{margin-top:8px;color:var(--gray);font-size:15px;max-width:760px;}
.step .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(203,242,74,.4);color:#3d4a06;
}
.tag-plain{background:var(--paper-2);border:1px solid var(--line);color:var(--gray);}

/* FAQ */
.faq{max-width:900px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:17px;font-weight:800;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-item summary:hover{color:var(--orange);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--gray);font-size:12px;
  transition:transform .24s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--orange);color:var(--orange);}
.faq-body{padding:0 0 24px;color:var(--gray);font-size:15px;line-height:1.9;max-width:800px;}

/* CTA */
.cta-band{
  background:var(--ink);color:#fff;border-radius:24px;
  padding:56px;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(203,242,74,.22),transparent 70%);
}
.cta-band h2{color:#fff;position:relative;}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.72);font-size:16px;max-width:520px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;position:relative;}
.cta-media{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:3/4;border:1px solid rgba(255,255,255,.16);}
.cta-media img{width:100%;height:100%;object-fit:cover;}
.cta-media .media-caption{
  position:absolute;left:14px;right:14px;bottom:14px;
  background:rgba(247,245,239,.92);color:var(--ink);
  border-radius:12px;padding:10px 14px;font-size:13px;font-weight:700;
}

/* footer */
.site-footer{background:var(--paper);border-top:1px solid var(--line);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:17px;letter-spacing:-.02em;}
.footer-desc{margin-top:16px;color:var(--gray);font-size:14px;line-height:1.85;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:900;letter-spacing:.02em;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--gray);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--orange);}
.footer-contact li{font-size:13px;color:var(--gray);line-height:1.7;}
.footer-contact strong{color:var(--ink);font-weight:700;}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--gray);
}
.back-top{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--ink);}
.back-top:hover{color:var(--orange);}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* responsive */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .split{gap:36px;grid-template-columns:1fr 1fr;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px;grid-template-columns:1fr;}
  .cta-media{max-width:280px;aspect-ratio:4/3;}
}
@media (max-width:900px){
  .header-inner{height:56px;gap:12px;}
  .nav{
    position:absolute;left:0;right:0;top:56px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:16px 20px 22px;
    background:var(--white);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
  }
  .nav.is-open{display:flex;}
  .nav > a{padding:12px 10px;border-radius:10px;font-size:16px;}
  .nav > a::after{display:none;}
  .nav > a.is-active{background:var(--paper-2);color:var(--orange);}
  .nav .btn{margin:10px 0 0;}
  .nav-toggle{display:inline-flex;}
  .header-cta .btn{display:none;}
  .page-hero-inner{padding:36px 0 52px;}
  .split{grid-template-columns:1fr;gap:26px;padding:40px 0;}
  .split.is-reverse .split-media{order:0;}
  .split-media img{aspect-ratio:16/10;}
  .step{grid-template-columns:60px 1fr;gap:16px;}
  .step-num{font-size:30px;}
  .site-footer{margin-top:72px;padding-top:56px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-card{padding:22px 20px;}
  .hero-actions .btn{width:100%;}
  .cta-band{padding:30px 22px;border-radius:18px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .faq-item summary{font-size:16px;padding:18px 0;}
  .pill{font-size:13px;padding:8px 13px;}
}