/* roulang page: index */
:root{
  --ink:#14121C;
  --ink-2:#2A2637;
  --paper:#F6F5F2;
  --paper-2:#FFFFFF;
  --brand:#17B8A6;
  --brand-deep:#0E8C7F;
  --accent:#FF7A45;
  --line:#E4E2DD;
  --muted:#6E6A7C;
  --radius:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,18,28,.06);
  --shadow-2:0 10px 28px rgba(20,18,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.22}
p{margin:0}
:focus-visible{outline:2px solid rgba(23,184,166,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ------- 导航 ------- */
.site-header{position:relative;z-index:60;background:var(--paper)}
.nav-top{display:flex;align-items:center;gap:18px;min-height:72px}
.logo{display:inline-flex;align-items:baseline;gap:6px;flex-shrink:0}
.logo-mark{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.logo-sub{font-size:12px;font-weight:500;color:var(--brand);letter-spacing:.06em}
.nav-search{
  display:none;flex:1;max-width:420px;align-items:center;gap:10px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--paper-2);padding:9px 16px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
@media(min-width:768px){.nav-search{display:flex}}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,184,166,.12)}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--muted)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-burger{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper-2);
  color:var(--ink);cursor:pointer;transition:all .22s var(--ease);
}
.nav-burger:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){.nav-burger{display:none}}
.nav-tabs{
  position:sticky;top:0;z-index:50;
  background:rgba(246,245,242,.95);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.nav-tabs-inner{
  display:flex;align-items:center;gap:8px;padding-top:10px;padding-bottom:10px;
  overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;
}
.nav-tabs-inner::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--paper-2);
  font-size:14px;font-weight:500;color:var(--muted);
  transition:all .22s var(--ease);white-space:nowrap;
}
.tab:hover{border-color:var(--brand);color:var(--brand)}
.tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,18,28,.5);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;left:0;right:0;top:0;z-index:90;
  background:var(--paper);border-bottom:1px solid var(--line);
  border-radius:0 0 16px 16px;
  transform:translateY(-102%);transition:transform .26s var(--ease);
  padding:18px 20px 24px;
}
.drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper-2);cursor:pointer;transition:all .22s var(--ease);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-search{
  display:flex;align-items:center;gap:10px;border:1px solid var(--line);
  border-radius:var(--radius-sm);background:var(--paper-2);padding:10px 14px;margin-bottom:16px;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px}
.drawer-search i{color:var(--muted);font-size:13px}
.drawer-list{display:flex;flex-direction:column;gap:6px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:var(--radius-sm);
  border:1px solid transparent;font-size:15px;color:var(--ink);transition:all .22s var(--ease);
}
.drawer-list a:hover,.drawer-list a.is-active{background:var(--paper-2);border-color:var(--line);color:var(--brand-deep)}

/* ------- 按钮 ------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .22s var(--ease);white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-deep);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-outline{background:transparent;border-color:rgba(20,18,28,.16);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn .arrow{transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep);
  border-bottom:1px solid transparent;transition:all .22s var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--brand)}
.link-arrow i{transition:transform .22s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ------- Hero ------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--ink) url(/assets/images/backpic/back-1.png) center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,18,28,.80) 0%,rgba(20,18,28,.72) 46%,rgba(20,18,28,.88) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(1px 1px at 12% 22%,rgba(255,255,255,.9) 50%,transparent 51%),
    radial-gradient(1px 1px at 34% 68%,rgba(255,255,255,.7) 50%,transparent 51%),
    radial-gradient(1px 1px at 62% 18%,rgba(255,255,255,.75) 50%,transparent 51%),
    radial-gradient(1px 1px at 82% 54%,rgba(255,255,255,.8) 50%,transparent 51%),
    radial-gradient(1px 1px at 92% 30%,rgba(255,255,255,.6) 50%,transparent 51%),
    radial-gradient(1px 1px at 22% 86%,rgba(255,255,255,.6) 50%,transparent 51%);
}
.hero-inner{position:relative;z-index:2;padding-top:88px;padding-bottom:72px}
@media(min-width:768px){.hero-inner{padding-top:110px;padding-bottom:96px}}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(23,184,166,.14);border:1px solid rgba(23,184,166,.35);
  color:#8FE6DB;font-size:13px;font-weight:500;letter-spacing:.04em;
}
.hero h1{
  margin-top:22px;font-size:32px;font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.24;
  max-width:820px;
}
@media(min-width:768px){.hero h1{font-size:42px}}
@media(min-width:1024px){.hero h1{font-size:50px}}
.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.8;color:rgba(246,245,242,.82);max-width:660px;
}
@media(min-width:768px){.hero-sub{font-size:19px}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-facts{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(246,245,242,.72);
}
.hero-facts span{display:inline-flex;align-items:center;gap:8px}
.hero-facts i{color:var(--brand);font-size:12px}
.hero-facts .sep{width:1px;height:14px;background:rgba(255,255,255,.18);display:inline-block}

/* ------- 板块 ------- */
.section{padding-top:64px;padding-bottom:64px}
@media(min-width:768px){.section{padding-top:80px;padding-bottom:80px}}
.section-dark{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;opacity:.14;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
}
.section-dark > *{position:relative;z-index:2}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-title{font-size:24px;font-weight:700;position:relative;padding-left:16px}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--brand);
}
@media(min-width:768px){.section-title{font-size:28px}}
.section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.section-dark .section-desc{color:rgba(246,245,242,.72)}
.section-dark .section-title{color:#fff}

/* ------- 卡片 ------- */
.card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(23,184,166,.45)}
.point-card{padding:28px 26px;display:flex;flex-direction:column;gap:14px}
.point-num{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.point-card h3{font-size:20px}
.point-card p{font-size:15px;color:#33303D;line-height:1.85}
.point-card .link-arrow{margin-top:auto}
.point-feature{
  padding:34px 30px;
  background:linear-gradient(160deg,rgba(23,184,166,.10),rgba(23,184,166,.02));
  border:1px solid rgba(23,184,166,.28);
  border-radius:var(--radius);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.point-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}

/* ------- 场景演示 ------- */
.scene{display:grid;gap:32px;align-items:center}
@media(min-width:1024px){.scene{grid-template-columns:1fr 1fr;gap:56px}}
.scene + .scene{margin-top:56px;padding-top:56px;border-top:1px solid var(--line)}
@media(min-width:1024px){.scene + .scene{margin-top:64px;padding-top:64px}}
.scene-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease)}
.scene-media:hover img{transform:scale(1.03)}
@media(min-width:1024px){.scene.reverse .scene-media{order:2}}
.scene-badge{
  position:absolute;left:16px;top:16px;padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(20,18,28,.78);color:#fff;font-size:12.5px;font-weight:500;backdrop-filter:blur(6px);
}
.scene h3{font-size:22px;margin-bottom:12px}
.scene-text{font-size:15.5px;color:#33303D;line-height:1.85;margin-bottom:18px}
.tick-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.tick-list li{display:flex;gap:10px;font-size:15px;color:#33303D;line-height:1.75}
.tick-list li::before{content:"";flex:0 0 auto;width:14px;height:2px;margin-top:12px;border-radius:2px;background:var(--brand)}

/* ------- 最新信息 ------- */
.news-feature{
  display:grid;gap:0;overflow:hidden;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(23,184,166,.45)}
.news-feature-media{overflow:hidden}
.news-feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.news-feature:hover .news-feature-media img{transform:scale(1.04)}
@media(min-width:768px){
  .news-feature{grid-template-columns:44% 1fr}
  .news-feature-media img{height:100%;aspect-ratio:auto;min-height:260px}
}
.news-feature-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px}
@media(min-width:768px){.news-feature-body{padding:30px 30px 32px}}
.news-feature-body h3{font-size:21px;line-height:1.35}
.news-feature-body p{font-size:15px;color:var(--muted);line-height:1.8}
.news-feature-body .link-arrow{margin-top:auto}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-pill);
  background:rgba(23,184,166,.10);color:var(--brand-deep);font-size:12.5px;font-weight:600;
}
.meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-list{border-top:1px solid var(--line)}
.news-item{border-bottom:1px solid var(--line)}
.news-item a{
  display:block;padding:18px 14px;transition:background .22s var(--ease),transform .22s var(--ease);
}
.news-item a:hover{background:var(--paper-2);transform:translateX(4px)}
.news-item-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.news-item h4{font-size:16.5px;line-height:1.45;transition:color .22s var(--ease)}
.news-item a:hover h4{color:var(--brand-deep)}
.news-item p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--line);border-radius:var(--radius);background:var(--paper-2);
  color:var(--muted);font-size:15px;text-align:center;padding:32px 20px;
}
.empty-state i{font-size:22px;color:var(--brand);opacity:.7}

/* ------- 指标带 ------- */
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.10);border-radius:var(--radius);overflow:hidden}
@media(min-width:768px){.metrics{grid-template-columns:repeat(4,1fr)}}
.metric{background:rgba(255,255,255,.03);padding:28px 22px;text-align:left}
.metric-num{font-size:30px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.metric-label{margin-top:6px;font-size:14px;color:rgba(246,245,242,.78)}
.metric-note{margin-top:4px;font-size:12.5px;color:rgba(246,245,242,.5)}

/* ------- 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:16px;
  padding:20px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-deep)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:15px;transition:transform .24s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(90deg)}
.faq-body{padding:0 4px 22px;font-size:15px;color:var(--muted);line-height:1.85;max-width:900px}

/* ------- 订阅 ------- */
.subscribe{
  display:grid;gap:24px;align-items:center;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 26px;box-shadow:var(--shadow-1);
}
@media(min-width:1024px){.subscribe{grid-template-columns:1.1fr 1fr;padding:40px 40px}}
.subscribe h3{font-size:22px;margin-bottom:10px}
.subscribe p{font-size:15px;color:var(--muted)}
.sub-form{display:flex;flex-direction:column;gap:12px}
@media(min-width:520px){.sub-form{flex-direction:row;align-items:center}}
.sub-form input{
  flex:1;min-width:0;padding:12px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);outline:none;font-size:15px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,184,166,.14)}
.form-hint{font-size:13px;color:var(--muted)}

/* ------- 页脚 ------- */
.site-footer{background:var(--ink);color:rgba(246,245,242,.72);padding-top:64px;padding-bottom:28px;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.10;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;
}
.site-footer > *{position:relative;z-index:2}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(246,245,242,.7);transition:color .22s var(--ease)}
.footer-links a:hover{color:var(--brand)}
.footer-brand .logo-mark{color:#fff;font-size:19px}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;max-width:320px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:13px;color:rgba(246,245,242,.55);
}

/* ------- 底部固定转化条 ------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(20,18,28,.96);border-top:1px solid rgba(255,255,255,.08);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(0);transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.sticky-bar.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none}
.sticky-inner{
  max-width:1200px;margin:0 auto;padding:12px 20px;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
@media(min-width:768px){.sticky-inner{padding:12px 24px}}
@media(min-width:1024px){.sticky-inner{padding:12px 32px}}
.sticky-text{font-size:13.5px;color:rgba(246,245,242,.82);line-height:1.5}
@media(max-width:520px){.sticky-text{font-size:12.5px}}

/* ------- 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}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}
section[id]{scroll-margin-top:84px}

/* roulang page: article */
:root{
  --ink:#14121C;
  --ink-2:#2A2637;
  --paper:#F6F5F2;
  --paper-2:#FFFFFF;
  --brand:#17B8A6;
  --brand-deep:#0E8C7F;
  --accent:#FF7A45;
  --line:#E4E2DD;
  --muted:#6E6A7C;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --shadow-1:0 1px 2px rgba(20,18,28,.06);
  --shadow-2:0 10px 28px rgba(20,18,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:96px;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:60;}
.topbar{background:var(--paper);border-bottom:1px solid var(--line);}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:70px;
}
.logo{display:inline-flex;align-items:baseline;gap:6px;flex-shrink:0;}
.logo-mark{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1.2;
}
.logo-sub{
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--brand);
  line-height:1.2;
}
.search{
  position:relative;
  flex:1 1 auto;
  max-width:400px;
  margin-left:auto;
}
.search i{
  position:absolute;
  left:15px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--muted);
  pointer-events:none;
}
.search input{
  width:100%;
  height:40px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper-2);
  padding:0 18px 0 40px;
  font-size:14px;
  color:var(--ink);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search input::placeholder{color:#A29EAE;}
.search input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(23,184,166,.16);
}
.topbar-cta{flex-shrink:0;}
.menu-btn{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--paper-2);
  color:var(--ink);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand);}
.menu-btn:focus-visible{outline:2px solid rgba(23,184,166,.5);outline-offset:2px;}

/* ---------- 频道 Tabs ---------- */
.nav-tabs{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(246,245,242,.93);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-tabs-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:56px;
  overflow-x:auto;
  overflow-y:hidden;
  scroll-snap-type:x mandatory;
  -ms-overflow-style:none;
  scrollbar-width:none;
  scroll-margin-top:72px;
}
.nav-tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  line-height:1.4;
  color:var(--muted);
  white-space:nowrap;
  transition:all .22s var(--ease);
}
.tab i{font-size:12px;}
.tab:hover{color:var(--brand);border-color:rgba(23,184,166,.45);background:rgba(23,184,166,.05);}
.tab:focus-visible{outline:2px solid rgba(23,184,166,.5);outline-offset:2px;}
.tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(20,18,28,.5);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(84vw,340px);
  background:var(--paper-2);
  z-index:90;
  padding:22px 22px 32px;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
  box-shadow:var(--shadow-2);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.search-mobile{max-width:none;margin:0 0 22px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-link{
  display:flex;align-items:center;gap:10px;
  padding:13px 14px;border-radius:10px;
  font-size:15px;color:var(--ink);
  border:1px solid transparent;
  transition:all .2s var(--ease);
}
.drawer-link::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--brand);flex:0 0 auto;}
.drawer-link:hover{background:var(--paper);border-color:var(--line);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn i{transition:transform .22s var(--ease);font-size:13px;}
.btn:hover i{transform:translateX(4px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:rgba(20,18,28,.2);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:focus-visible{outline:2px solid rgba(23,184,166,.5);outline-offset:2px;}
.link-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
  transition:color .2s var(--ease),text-decoration-thickness .2s var(--ease);
}
.link-text:hover{color:var(--brand-deep);text-decoration-thickness:2px;}
.link-text i{font-size:12px;transition:transform .22s var(--ease);}
.link-text:hover i{transform:translateX(4px);}

/* ---------- 文章头部 ---------- */
.article-hero{padding:36px 0 8px;}
.article-hero-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:38px 40px 32px;
  box-shadow:var(--shadow-1);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb a{transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C6C3CC;}
.breadcrumb .crumb-cat{color:var(--muted);}
.breadcrumb .crumb-current{
  color:var(--ink);
  max-width:320px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-title{
  font-size:40px;
  font-weight:800;
  line-height:1.24;
  letter-spacing:-.02em;
  color:var(--ink);
  margin-bottom:22px;
  word-break:break-word;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 16px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(23,184,166,.1);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:600;
  line-height:1.4;
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{font-size:12px;color:var(--muted);}
.meta-dot{color:#C6C3CC;}

.article-cover{
  max-width:880px;
  margin:32px auto 0;
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius);
  background:var(--line);
  box-shadow:var(--shadow-1);
}
.article-cover figcaption{
  margin-top:12px;
  font-size:13px;
  color:var(--muted);
  text-align:center;
}

/* ---------- 正文 ---------- */
.article-section{padding:44px 0 8px;}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.9;
  color:#332F3D;
  word-break:break-word;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  font-size:28px;
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.02em;
  color:var(--ink);
  margin:46px 0 18px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.24em;
  bottom:.24em;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.article-body h3{
  font-size:20px;
  font-weight:700;
  line-height:1.5;
  color:var(--ink);
  margin:32px 0 12px;
}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:24px 0 10px;}
.article-body ul,
.article-body ol{margin:0 0 22px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:3px solid var(--brand);
  background:var(--paper-2);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--muted);
  font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{
  color:var(--brand-deep);
  text-decoration:underline;
  text-underline-offset:4px;
}
.article-body a:hover{color:var(--brand);text-decoration-thickness:2px;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--radius);
  margin:26px auto;
  box-shadow:var(--shadow-1);
}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--paper-2);
}
.article-body thead{background:var(--paper);}
.article-body th{
  text-align:left;
  font-weight:600;
  color:var(--ink);
  padding:13px 15px;
  border-bottom:1px solid var(--line);
}
.article-body td{
  padding:13px 15px;
  border-bottom:1px solid var(--line);
  color:#3C3846;
}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:36px 0;
}
.article-body code{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 7px;
  font-size:14px;
}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;
  margin:0 auto;
  padding:56px 32px;
  border:1px dashed var(--line);
  border-radius:var(--radius-lg);
  background:var(--paper-2);
  text-align:center;
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:16px;}
.empty-state h2{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:10px;letter-spacing:-.01em;}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:24px;}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 8px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.section-title{
  position:relative;
  font-size:28px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1.3;
  padding-top:14px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:12px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.section-desc{font-size:14px;color:var(--muted);margin-top:8px;}

.related-list{
  border-top:1px solid var(--line);
}
.related-item a{
  display:flex;
  align-items:center;
  gap:20px;
  padding:20px 14px;
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.related-item a:hover{background:var(--paper-2);transform:translateX(4px);}
.related-item a:focus-visible{outline:2px solid rgba(23,184,166,.5);outline-offset:-2px;}
.related-main{flex:1 1 auto;min-width:0;}
.related-title{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  margin-bottom:6px;
  transition:color .2s var(--ease);
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
}
.related-item a:hover .related-title{color:var(--brand);}
.related-sub{
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.related-arrow{
  flex:0 0 auto;
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--muted);
  font-size:12px;
  transition:all .22s var(--ease);
}
.related-item a:hover .related-arrow{border-color:var(--brand);color:var(--brand);background:rgba(23,184,166,.08);}

.back-channel{
  margin-top:28px;
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}

/* ---------- CTA 条 ---------- */
.cta-strip{padding:56px 0 0;}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:34px 40px;
  border-radius:var(--radius-lg);
  background:var(--ink);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-inner::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1px 1px at 18% 30%,rgba(255,255,255,.35),transparent 100%),
    radial-gradient(1px 1px at 62% 18%,rgba(255,255,255,.28),transparent 100%),
    radial-gradient(1px 1px at 84% 66%,rgba(255,255,255,.3),transparent 100%),
    radial-gradient(1px 1px at 38% 78%,rgba(255,255,255,.22),transparent 100%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:1;}
.cta-text h2{
  font-size:24px;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.35;
  margin-bottom:8px;
}
.cta-text p{font-size:14px;color:rgba(246,245,242,.72);}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
.btn-outline-light{
  background:transparent;
  border-color:rgba(255,255,255,.28);
  color:#fff;
}
.btn-outline-light:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(246,245,242,.7);
  padding:64px 0 0;
  margin-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-mark{color:#fff;}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:rgba(246,245,242,.6);
  max-width:350px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(246,245,242,.7);
  transition:color .2s var(--ease);
}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(246,245,242,.5);
}

/* ---------- 底部固定转化条 ---------- */
.bottom-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  background:rgba(20,18,28,.96);
  border-top:1px solid rgba(255,255,255,.08);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(0);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.bottom-bar.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none;}
.bottom-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
}
.bottom-tip{
  font-size:14px;
  color:rgba(246,245,242,.8);
}

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

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding-left:24px;padding-right:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .article-title{font-size:34px;}
  .article-hero-card{padding:32px 28px 26px;}
  .cta-inner{padding:30px 28px;}
}

@media (max-width:768px){
  body{padding-bottom:88px;}
  .container{padding-left:20px;padding-right:20px;}
  .search{display:none;}
  .menu-btn{display:inline-flex;}
  .topbar-inner{min-height:62px;gap:12px;}
  .topbar-cta{padding:8px 14px;font-size:13px;}
  .article-hero{padding:24px 0 4px;}
  .article-hero-card{padding:26px 22px 22px;border-radius:14px;}
  .article-title{font-size:27px;line-height:1.32;margin-bottom:18px;}
  .article-meta{gap:8px 12px;padding-top:16px;}
  .article-section{padding:32px 0 4px;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:22px;margin:34px 0 14px;padding-left:13px;}
  .article-body h3{font-size:18px;margin:26px 0 10px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:10px 12px;}
  .related{padding:48px 0 4px;}
  .section-title{font-size:23px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .related-item a{gap:14px;padding:16px 8px;}
  .related-title{font-size:16px;}
  .related-arrow{width:32px;height:32px;}
  .cta-strip{padding:44px 0 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-text h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .bottom-bar-inner{min-height:60px;}
  .bottom-tip{font-size:13px;}
  .article-cover{margin-top:24px;}
}

@media (max-width:520px){
  .article-title{font-size:23px;}
  .article-body h2{font-size:20px;}
  .bottom-tip{display:none;}
  .bottom-bar-inner{justify-content:center;}
  .bottom-bar-inner .btn{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
    --ink:#14121C;
    --ink-2:#2A2637;
    --paper:#F6F5F2;
    --paper-2:#FFFFFF;
    --brand:#17B8A6;
    --brand-deep:#0E8C7F;
    --accent:#FF7A45;
    --line:#E4E2DD;
    --muted:#6E6A7C;
    --radius-card:12px;
    --radius-btn:8px;
    --shadow-1:0 1px 2px rgba(20,18,28,.06);
    --shadow-2:0 10px 28px rgba(20,18,28,.10);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,
  *::before,
  *::after{ box-sizing:border-box; }

  html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

  body{
    margin:0;
    padding-bottom:96px;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3,h4{ margin:0; letter-spacing:-.02em; line-height:1.25; }
  p{ margin:0; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  a{ color:inherit; text-decoration:none; }
  img{ display:block; max-width:100%; }
  button,input{ font:inherit; color:inherit; }
  button{ background:none; border:0; cursor:pointer; }

  :focus-visible{ outline:2px solid rgba(23,184,166,.55); outline-offset:2px; }

  body .container{
    width:100%;
    max-width:1200px;
    margin-inline:auto;
    padding-inline:32px;
  }

  /* ---------- 顶部品牌行 ---------- */
  .site-header{
    background:var(--paper);
    border-bottom:1px solid var(--line);
    position:relative;
    z-index:50;
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:24px;
    min-height:74px;
  }
  .logo{
    display:inline-flex;
    align-items:baseline;
    gap:7px;
    font-size:20px;
    font-weight:800;
    letter-spacing:-.02em;
    color:var(--ink);
    flex:0 0 auto;
  }
  .logo-mark{ color:var(--ink); }
  .logo-sub{
    font-size:12px;
    font-weight:500;
    letter-spacing:.1em;
    color:var(--brand-deep);
  }
  .search-box{
    flex:1 1 auto;
    max-width:420px;
    display:flex;
    align-items:center;
    gap:10px;
    padding:8px 14px;
    border:1px solid var(--line);
    border-radius:999px;
    background:var(--paper-2);
    transition:border-color 200ms var(--ease), box-shadow 200ms var(--ease);
  }
  .search-box:focus-within{
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(23,184,166,.15);
  }
  .search-box i{ color:var(--muted); font-size:14px; }
  .search-box input{
    border:0;
    background:transparent;
    outline:none;
    width:100%;
    font-size:14.5px;
    color:var(--ink);
  }
  .search-box input::placeholder{ color:var(--muted); }
  .header-actions{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:12px;
    flex:0 0 auto;
  }
  .icon-btn{
    display:none;
    width:42px;
    height:42px;
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--ink);
    align-items:center;
    justify-content:center;
    transition:border-color 200ms var(--ease), color 200ms var(--ease);
  }
  .icon-btn:hover{ border-color:var(--brand); color:var(--brand-deep); }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    transition:background 220ms var(--ease), border-color 220ms var(--ease), color 220ms var(--ease), transform 220ms var(--ease);
  }
  .btn i{ transition:transform 220ms var(--ease); }
  .btn:hover i{ transform:translateX(4px); }
  .btn:active{ transform:translateY(1px); }
  .btn-primary{ background:var(--brand); color:#fff; }
  .btn-primary:hover{ background:var(--brand-deep); color:#fff; }
  .btn-sm{ padding:10px 18px; font-size:14px; }
  .btn-ghost{
    background:transparent;
    border-color:rgba(20,18,28,.2);
    color:var(--ink);
  }
  .btn-ghost:hover{ border-color:var(--brand); color:var(--brand-deep); }
  .btn-ghost-light{
    background:transparent;
    border-color:rgba(255,255,255,.32);
    color:#fff;
  }
  .btn-ghost-light:hover{ border-color:var(--brand); color:var(--brand); }
  .btn:disabled{ opacity:.45; cursor:not-allowed; }

  /* ---------- 频道 Tabs ---------- */
  .nav-tabs{
    position:sticky;
    top:0;
    z-index:40;
    background:rgba(246,245,242,.95);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  .nav-tabs-inner{
    display:flex;
    align-items:center;
    gap:8px;
    padding-block:12px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    scrollbar-width:none;
  }
  .nav-tabs-inner::-webkit-scrollbar{ display:none; }
  .tab{
    flex:0 0 auto;
    scroll-snap-align:start;
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 18px;
    border-radius:999px;
    border:1px solid var(--line);
    color:var(--muted);
    font-size:14.5px;
    font-weight:600;
    white-space:nowrap;
    transition:background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
  }
  .tab:hover{ border-color:var(--brand); color:var(--brand-deep); }
  .tab:active{ transform:translateY(1px); }
  .tab.is-active{
    background:var(--ink);
    border-color:var(--ink);
    color:#fff;
  }
  .tab.is-active:hover{ color:#fff; }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    background:var(--ink);
    color:#fff;
    overflow:hidden;
  }
  .hero-bg{
    position:absolute;
    inset:0;
    background-image:
      radial-gradient(circle at 18% 22%, rgba(255,255,255,.20) 0 1px, transparent 1.4px),
      radial-gradient(circle at 72% 14%, rgba(255,255,255,.16) 0 1px, transparent 1.4px),
      radial-gradient(circle at 46% 68%, rgba(23,184,166,.28) 0 1px, transparent 1.4px),
      radial-gradient(circle at 88% 62%, rgba(255,255,255,.14) 0 1px, transparent 1.4px),
      linear-gradient(180deg, rgba(20,18,28,.74), rgba(20,18,28,.82)),
      url('/assets/images/backpic/back-2.png');
    background-size:auto, auto, auto, auto, cover, cover;
    background-position:center, center, center, center, center, center;
    background-repeat:no-repeat;
    opacity:.98;
  }
  .hero-inner{
    position:relative;
    z-index:2;
    padding-block:78px 68px;
    max-width:900px;
  }
  .hero-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    border-radius:999px;
    border:1px solid rgba(23,184,166,.45);
    background:rgba(23,184,166,.12);
    color:#8ee6dc;
    font-size:13px;
    font-weight:600;
    letter-spacing:.04em;
  }
  .hero-title{
    margin-top:22px;
    font-size:50px;
    font-weight:800;
    line-height:1.15;
    color:#fff;
  }
  .hero-sub{
    margin-top:18px;
    max-width:680px;
    font-size:18px;
    line-height:1.85;
    color:rgba(246,245,242,.82);
  }
  .hero-actions{
    margin-top:30px;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
  }
  .hero-stats{
    margin-top:44px;
    display:flex;
    flex-wrap:wrap;
    gap:0;
    border-top:1px solid rgba(255,255,255,.12);
    padding-top:22px;
  }
  .hero-stats li{
    display:flex;
    flex-direction:column;
    gap:2px;
    padding-right:28px;
    margin-right:28px;
    border-right:1px solid rgba(255,255,255,.12);
  }
  .hero-stats li:last-child{ border-right:0; margin-right:0; padding-right:0; }
  .stat-num{
    font-size:24px;
    font-weight:800;
    color:#fff;
    font-variant-numeric:tabular-nums;
    letter-spacing:-.02em;
    line-height:1.2;
  }
  .stat-label{
    font-size:13px;
    color:rgba(246,245,242,.62);
  }

  /* ---------- 主体布局 ---------- */
  .content-wrap{ padding-block:80px 40px; }

  .rail{
    align-self:flex-start;
  }
  .rail-card{
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--paper-2);
    padding:20px;
    box-shadow:var(--shadow-1);
  }
  .rail-title{
    font-size:13px;
    font-weight:700;
    letter-spacing:.12em;
    color:var(--muted);
    margin-bottom:14px;
  }
  .rail-list{ display:flex; flex-direction:column; gap:2px; }
  .rail-link{
    display:flex;
    align-items:center;
    gap:10px;
    padding:9px 12px;
    border-radius:8px;
    font-size:14.5px;
    font-weight:600;
    color:var(--muted);
    transition:background 200ms var(--ease), color 200ms var(--ease), transform 200ms var(--ease);
  }
  .rail-link::before{
    content:"";
    width:12px;
    height:2px;
    border-radius:2px;
    background:var(--line);
    transition:background 200ms var(--ease), width 200ms var(--ease);
  }
  .rail-link:hover{ background:rgba(23,184,166,.08); color:var(--brand-deep); transform:translateX(3px); }
  .rail-link:hover::before{ background:var(--brand); width:18px; }
  .rail-link.is-current{ background:rgba(23,184,166,.1); color:var(--brand-deep); }
  .rail-link.is-current::before{ background:var(--brand); width:18px; }

  .rail-note{
    margin-top:22px;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--paper-2);
    overflow:hidden;
    box-shadow:var(--shadow-1);
    transition:border-color 220ms var(--ease), box-shadow 220ms var(--ease), transform 220ms var(--ease);
  }
  .rail-note:hover{ border-color:rgba(23,184,166,.55); box-shadow:var(--shadow-2); transform:translateY(-2px); }
  .rail-note img{ width:100%; aspect-ratio:16/10; object-fit:cover; background:var(--line); }
  .rail-note-body{ padding:16px 18px 18px; }
  .rail-note-body h3{ font-size:16px; font-weight:700; margin-bottom:8px; }
  .rail-note-body p{ font-size:14px; line-height:1.8; color:var(--muted); margin-bottom:14px; }

  /* ---------- 板块通用 ---------- */
  .section{ padding-block:64px; scroll-margin-top:96px; }
  .section:first-child{ padding-top:0; }
  .sec-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    margin-bottom:30px;
  }
  .sec-title{
    position:relative;
    padding-left:16px;
    font-size:28px;
    font-weight:800;
  }
  .sec-title::before{
    content:"";
    position:absolute;
    left:0;
    top:.24em;
    bottom:.24em;
    width:2px;
    border-radius:2px;
    background:var(--brand);
  }
  .sec-desc{
    margin-top:12px;
    max-width:660px;
    font-size:15px;
    line-height:1.85;
    color:var(--muted);
  }
  .link-more{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14.5px;
    font-weight:600;
    color:var(--brand-deep);
    border-bottom:1px solid rgba(14,140,127,.35);
    padding-bottom:2px;
    transition:border-color 200ms var(--ease), color 200ms var(--ease);
  }
  .link-more i{ transition:transform 220ms var(--ease); }
  .link-more:hover{ border-bottom-width:2px; }
  .link-more:hover i{ transform:translateX(4px); }

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 11px;
    border-radius:999px;
    background:rgba(23,184,166,.1);
    color:var(--brand-deep);
    font-size:13px;
    font-weight:600;
    line-height:1.5;
  }
  .badge-warm{
    background:rgba(255,122,69,.12);
    color:#C24E1E;
  }

  /* ---------- 入口类型条目列表 ---------- */
  .entry-list{ border-top:1px solid var(--line); }
  .entry-item{
    padding:22px 18px 22px 0;
    border-bottom:1px solid var(--line);
    border-radius:0 12px 12px 0;
    transition:background 220ms var(--ease), transform 220ms var(--ease), box-shadow 220ms var(--ease), padding-left 220ms var(--ease);
  }
  .entry-item:hover{
    background:var(--paper-2);
    transform:translateX(4px);
    box-shadow:var(--shadow-1);
    padding-left:16px;
  }
  .entry-top{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
  }
  .entry-title{
    font-size:20px;
    font-weight:700;
    letter-spacing:-.01em;
    margin-top:10px;
  }
  .entry-title a{ transition:color 200ms var(--ease); }
  .entry-item:hover .entry-title a{ color:var(--brand-deep); }
  .entry-desc{
    margin-top:8px;
    font-size:15px;
    line-height:1.8;
    color:#33303D;
    max-width:720px;
  }
  .entry-foot{
    margin-top:12px;
    display:flex;
    align-items:center;
    gap:16px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--muted);
  }
  .entry-foot i{ margin-right:5px; }

  .wide-figure{
    margin-top:36px;
    border-radius:var(--radius-card);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--line);
    box-shadow:var(--shadow-1);
  }
  .wide-figure img{ width:100%; aspect-ratio:21/9; object-fit:cover; }
  .wide-figure figcaption{
    padding:12px 18px;
    background:var(--paper-2);
    font-size:13px;
    color:var(--muted);
    border-top:1px solid var(--line);
  }

  /* ---------- 步骤条 ---------- */
  .steps{ position:relative; padding-left:4px; }
  .step{
    position:relative;
    padding:0 0 28px 46px;
  }
  .step:last-child{ padding-bottom:0; }
  .step::before{
    content:"";
    position:absolute;
    left:13px;
    top:28px;
    bottom:0;
    width:1px;
    background:var(--line);
  }
  .step:last-child::before{ display:none; }
  .step-dot{
    position:absolute;
    left:0;
    top:2px;
    width:27px;
    height:27px;
    border-radius:50%;
    background:var(--paper-2);
    border:1px solid var(--brand);
    color:var(--brand-deep);
    font-size:12.5px;
    font-weight:700;
    display:flex;
    align-items:center;
    justify-content:center;
    font-variant-numeric:tabular-nums;
  }
  .step h3{ font-size:19px; font-weight:700; }
  .step p{
    margin-top:8px;
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
    max-width:680px;
  }

  /* ---------- 场景图文 ---------- */
  .scene-row{
    display:grid;
    grid-template-columns:repeat(12,minmax(0,1fr));
    gap:28px;
    align-items:center;
    padding-block:26px;
    border-top:1px solid var(--line);
  }
  .scene-row:first-child{ border-top:0; padding-top:0; }
  .scene-media img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:var(--radius-card);
    border:1px solid var(--line);
    background:var(--line);
    box-shadow:var(--shadow-1);
    transition:box-shadow 260ms var(--ease), transform 260ms var(--ease);
  }
  .scene-row:hover .scene-media img{ box-shadow:var(--shadow-2); transform:translateY(-2px); }
  .scene-body h3{ font-size:20px; font-weight:700; margin-bottom:10px; }
  .scene-body > p{ font-size:15px; line-height:1.8; color:#33303D; }
  .dot-list{ margin-top:14px; display:flex; flex-direction:column; gap:8px; }
  .dot-list li{
    display:flex;
    gap:10px;
    font-size:14.5px;
    line-height:1.75;
    color:var(--muted);
  }
  .dot-list li::before{
    content:"";
    flex:0 0 auto;
    width:14px;
    height:2px;
    margin-top:.72em;
    border-radius:2px;
    background:var(--brand);
  }

  /* ---------- 使用反馈 ---------- */
  .voices{
    background:var(--ink);
    color:#fff;
    padding-block:64px;
    scroll-margin-top:96px;
  }
  .voices-grid{
    display:grid;
    grid-template-columns:minmax(240px,1fr) 2.2fr;
    gap:34px;
    align-items:start;
  }
  .voices h2{
    font-size:26px;
    font-weight:800;
    color:#fff;
    position:relative;
    padding-left:16px;
  }
  .voices h2::before{
    content:"";
    position:absolute;
    left:0;
    top:.24em;
    bottom:.24em;
    width:2px;
    border-radius:2px;
    background:var(--brand);
  }
  .voices .voices-note{
    margin-top:14px;
    font-size:14.5px;
    line-height:1.8;
    color:rgba(246,245,242,.66);
  }
  .voices-track{
    display:flex;
    gap:16px;
    overflow-x:auto;
    padding-bottom:8px;
    scroll-snap-type:x mandatory;
    scrollbar-width:thin;
  }
  .voice-card{
    flex:0 0 auto;
    scroll-snap-align:start;
    width:280px;
    padding:20px;
    border-radius:var(--radius-card);
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.1);
    transition:border-color 220ms var(--ease), transform 220ms var(--ease);
  }
  .voice-card:hover{ border-color:rgba(23,184,166,.55); transform:translateY(-3px); }
  .voice-card p{
    font-size:14.5px;
    line-height:1.8;
    color:rgba(246,245,242,.85);
  }
  .voice-meta{
    margin-top:16px;
    display:flex;
    align-items:center;
    gap:10px;
    font-size:13px;
    color:rgba(246,245,242,.6);
  }
  .avatar{
    width:38px;
    height:38px;
    border-radius:50%;
    display:grid;
    place-items:center;
    background:rgba(23,184,166,.16);
    color:#8ee6dc;
    font-weight:700;
    font-size:14px;
  }

  /* ---------- 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:18px;
    padding:20px 4px;
    font-size:16px;
    font-weight:600;
    cursor:pointer;
    list-style:none;
    transition:color 200ms var(--ease);
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary:hover{ color:var(--brand-deep); }
  .faq-sign{
    flex:0 0 auto;
    width:24px;
    height:24px;
    display:grid;
    place-items:center;
    border-radius:50%;
    border:1px solid var(--line);
    color:var(--brand-deep);
    font-size:13px;
    transition:transform 220ms var(--ease), border-color 220ms var(--ease), background 220ms var(--ease);
  }
  .faq-item summary:hover .faq-sign{ border-color:var(--brand); }
  .faq-item[open] .faq-sign{
    transform:rotate(45deg);
    background:rgba(23,184,166,.12);
    border-color:var(--brand);
  }
  .faq-answer{
    padding:0 4px 22px;
    max-width:760px;
    font-size:15px;
    line-height:1.85;
    color:var(--muted);
  }

  /* ---------- 订阅 CTA ---------- */
  .cta-block{
    background:var(--ink);
    color:#fff;
    border-radius:16px;
    padding:44px;
    display:grid;
    grid-template-columns:1.15fr 1fr;
    gap:32px;
    align-items:center;
  }
  .cta-block h2{
    font-size:26px;
    font-weight:800;
    color:#fff;
  }
  .cta-block p{
    margin-top:12px;
    font-size:15px;
    line-height:1.85;
    color:rgba(246,245,242,.72);
  }
  .subscribe-form{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
  }
  .subscribe-form input[type="email"]{
    flex:1 1 220px;
    min-width:0;
    padding:13px 16px;
    border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,.24);
    background:rgba(255,255,255,.06);
    color:#fff;
    font-size:14.5px;
    outline:none;
    transition:border-color 200ms var(--ease), box-shadow 200ms var(--ease);
  }
  .subscribe-form input[type="email"]::placeholder{ color:rgba(246,245,242,.5); }
  .subscribe-form input[type="email"]:focus{
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(23,184,166,.2);
  }
  .form-hint{
    margin-top:12px;
    font-size:13px;
    color:rgba(246,245,242,.55);
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink);
    color:var(--paper);
    padding:64px 0 28px;
    margin-top:64px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:32px;
  }
  .footer-brand .logo{ color:#fff; }
  .footer-brand .logo-sub{ color:var(--brand); }
  .footer-brand p{
    margin-top:16px;
    font-size:14px;
    line-height:1.85;
    color:rgba(246,245,242,.66);
    max-width:360px;
  }
  .footer-title{
    font-size:14px;
    font-weight:600;
    color:#fff;
    margin:0 0 14px;
  }
  .footer-links{
    display:flex;
    flex-direction:column;
    gap:10px;
  }
  .footer-links a{
    font-size:14px;
    color:rgba(246,245,242,.7);
    transition:color 200ms var(--ease);
  }
  .footer-links a:hover{ color:var(--brand); }
  .footer-bottom{
    margin-top:42px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    font-size:13px;
    color:rgba(246,245,242,.55);
  }

  /* ---------- 底部固定转化条 ---------- */
  .sticky-cta{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:60;
    background:rgba(20,18,28,.96);
    border-top:1px solid rgba(255,255,255,.08);
    padding-bottom:env(safe-area-inset-bottom);
    transition:transform 260ms var(--ease), opacity 260ms var(--ease);
  }
  .sticky-cta.is-hidden{
    transform:translateY(110%);
    opacity:0;
    pointer-events:none;
  }
  .sticky-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:64px;
  }
  .sticky-text{
    font-size:14px;
    color:rgba(246,245,242,.8);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .sticky-text i{ color:var(--brand); }

  /* ---------- 移动端抽屉 ---------- */
  .drawer{
    position:fixed;
    inset:0;
    z-index:80;
    pointer-events:none;
  }
  .drawer-mask{
    position:absolute;
    inset:0;
    background:rgba(20,18,28,.5);
    opacity:0;
    transition:opacity 240ms var(--ease);
  }
  .drawer-panel{
    position:absolute;
    right:0;
    top:0;
    bottom:0;
    width:min(86vw,340px);
    background:var(--paper);
    padding:22px;
    transform:translateX(100%);
    transition:transform 280ms var(--ease);
    overflow-y:auto;
  }
  .drawer.is-open{ pointer-events:auto; }
  .drawer.is-open .drawer-mask{ opacity:1; }
  .drawer.is-open .drawer-panel{ transform:translateX(0); }
  .drawer-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:22px;
  }
  .drawer-title{ font-size:15px; font-weight:700; }
  .drawer-close{
    width:38px;
    height:38px;
    border:1px solid var(--line);
    border-radius:10px;
    display:grid;
    place-items:center;
    color:var(--muted);
    transition:border-color 200ms var(--ease), color 200ms var(--ease);
  }
  .drawer-close:hover{ border-color:var(--brand); color:var(--brand-deep); }
  .drawer-nav{ display:flex; flex-direction:column; gap:8px; margin-bottom:22px; }
  .drawer-nav a{
    padding:12px 14px;
    border:1px solid var(--line);
    border-radius:10px;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
    transition:border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
  }
  .drawer-nav a:hover{ border-color:var(--brand); color:var(--brand-deep); }
  .drawer-nav a.is-active{ background:var(--ink); border-color:var(--ink); color:#fff; }
  .drawer-search{
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px 14px;
    border:1px solid var(--line);
    border-radius:999px;
    background:var(--paper-2);
    margin-bottom:18px;
  }
  .drawer-search input{
    border:0;
    outline:none;
    background:transparent;
    width:100%;
    font-size:14.5px;
  }

  /* ---------- 入场动画 ---------- */
  .reveal{
    opacity:0;
    transform:translateY(12px);
    transition:opacity 520ms var(--ease), transform 520ms var(--ease);
  }
  .reveal.in{ opacity:1; transform:none; }

  @media (prefers-reduced-motion: reduce){
    .reveal{ opacity:1; transform:none; transition:none; }
    html{ scroll-behavior:auto; }
    .btn, .entry-item, .voice-card, .scene-media img{ transition:none; }
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    body .container{ padding-inline:24px; }
    .hero-title{ font-size:40px; }
    .hero-inner{ padding-block:64px 56px; }
    .content-wrap{ padding-block:64px 32px; }
    .section{ padding-block:48px; }
    .cta-block{ grid-template-columns:1fr; padding:34px; }
    .voices-grid{ grid-template-columns:1fr; gap:24px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
  }

  @media (max-width:768px){
    .search-box{ display:none; }
    .icon-btn{ display:inline-flex; }
    .header-inner{ min-height:66px; gap:14px; }
    .hero-title{ font-size:34px; letter-spacing:-.01em; }
    .hero-sub{ font-size:16.5px; }
    .hero-stats li{ padding-right:20px; margin-right:20px; }
    .hero-stats li:nth-child(3){ border-right:0; }
    .sec-title{ font-size:24px; }
    .scene-row{ grid-template-columns:1fr !important; gap:18px; }
    .scene-row .scene-media,
    .scene-row .scene-body{ grid-column:1 / -1 !important; }
    .entry-item{ padding-right:6px; }
    .voice-card{ width:250px; }
    .sticky-inner{ min-height:58px; }
    .sticky-text{ font-size:13px; }
    .sticky-text span{ display:none; }
  }

  @media (max-width:520px){
    body .container{ padding-inline:18px; }
    body{ font-size:15.5px; }
    .hero-title{ font-size:28px; }
    .hero-actions .btn{ width:100%; }
    .hero-stats{ gap:0; flex-direction:column; border-top:1px solid rgba(255,255,255,.12); }
    .hero-stats li{
      border-right:0;
      margin-right:0;
      padding:10px 0;
      border-bottom:1px solid rgba(255,255,255,.08);
      flex-direction:row;
      align-items:baseline;
      gap:10px;
    }
    .hero-stats li:last-child{ border-bottom:0; }
    .cta-block{ padding:26px; border-radius:12px; }
    .footer-grid{ grid-template-columns:1fr; }
    .footer-bottom{ flex-direction:column; }
    .entry-title{ font-size:18px; }
    .step{ padding-left:40px; }
  }

/* roulang page: category2 */
:root{
    --ink:#14121C;
    --ink-2:#2A2637;
    --paper:#F6F5F2;
    --paper-2:#FFFFFF;
    --brand:#17B8A6;
    --brand-deep:#0E8C7F;
    --accent:#FF7A45;
    --line:#E4E2DD;
    --muted:#6E6A7C;
    --radius-card:12px;
    --radius-btn:8px;
    --shadow-1:0 1px 2px rgba(20,18,28,.06);
    --shadow-2:0 10px 28px rgba(20,18,28,.10);
    --ease:cubic-bezier(.2,.7,.3,1);
    --nav-h:64px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
    font-size:16px;
    line-height:1.85;
    padding-bottom:96px;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  input{font:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.2;color:var(--ink);}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid rgba(23,184,166,.55);outline-offset:2px;border-radius:4px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media (max-width:1024px){.container{padding:0 24px;}}
  @media (max-width:640px){.container{padding:0 20px;}}

  .skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100;}
  .skip-link:focus{left:0;}

  /* ---------- Header ---------- */
  .site-header{background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:50;}
  .header-top{display:flex;align-items:center;gap:24px;padding:14px 0;}
  .logo{display:inline-flex;align-items:baseline;gap:8px;flex:0 0 auto;}
  .logo-mark{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1;}
  .logo-sub{font-size:12px;font-weight:500;color:var(--brand);letter-spacing:.06em;line-height:1;}
  .header-search{position:relative;flex:1 1 auto;max-width:420px;}
  .header-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);}
  .header-search input{
    width:100%;height:42px;padding:0 16px 0 36px;border:1px solid var(--line);border-radius:var(--radius-btn);
    background:var(--paper-2);color:var(--ink);font-size:14px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .header-search input::placeholder{color:#9C99A8;}
  .header-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,184,166,.16);}
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
    border:1px solid transparent;transition:all .22s var(--ease);white-space:nowrap;letter-spacing:0;
  }
  .btn i{font-size:12px;transition:transform .22s var(--ease);}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:hover i{transform:translateX(4px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:rgba(20,18,28,.18);}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
  .btn-light{background:#fff;color:var(--ink);}
  .btn-light:hover{background:var(--brand);color:#fff;}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
  .btn-outline-light:hover{border-color:var(--brand);color:var(--brand);}
  .btn-sm{padding:9px 18px;font-size:14px;}
  .text-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:600;border-bottom:1px solid rgba(23,184,166,.4);padding-bottom:2px;transition:border-color .22s var(--ease),gap .22s var(--ease);}
  .text-link:hover{border-bottom-width:2px;gap:12px;}
  .text-link i{font-size:11px;}

  .menu-btn{
    width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper-2);color:var(--ink);
    transition:all .22s var(--ease);
  }
  .menu-btn:hover{border-color:var(--brand);color:var(--brand);}

  /* ---------- Channel tabs ---------- */
  .nav-tabs{position:sticky;top:0;z-index:45;background:rgba(246,245,242,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
  .nav-tabs-inner{display:flex;gap:10px;overflow-x:auto;padding:10px 32px;scroll-snap-type:x proximity;scrollbar-width:none;}
  .nav-tabs-inner::-webkit-scrollbar{display:none;}
  @media (max-width:640px){.nav-tabs-inner{padding:10px 20px;}}
  .tab{
    flex:0 0 auto;scroll-snap-align:start;display:inline-flex;align-items:center;gap:8px;
    padding:8px 18px;border-radius:999px;border:1px solid var(--line);background:transparent;
    font-size:14px;font-weight:500;color:var(--muted);transition:all .22s var(--ease);scroll-margin-top:80px;
  }
  .tab i{font-size:12px;}
  .tab:hover{color:var(--ink);border-color:rgba(20,18,28,.24);}
  .tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

  /* ---------- Drawer ---------- */
  .drawer-mask{position:fixed;inset:0;background:rgba(20,18,28,.5);opacity:0;pointer-events:none;transition:opacity .22s var(--ease);z-index:70;}
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  .drawer{
    position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--paper-2);
    border-radius:18px 18px 0 0;padding:22px 20px calc(22px + env(safe-area-inset-bottom));
    transform:translateY(105%);transition:transform .28s var(--ease);max-height:88vh;overflow-y:auto;
  }
  .drawer.is-open{transform:translateY(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
  .drawer-search{display:flex;gap:10px;margin-bottom:18px;}
  .drawer-search input{flex:1 1 auto;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);}
  .drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,184,166,.16);}
  .drawer-links{display:flex;flex-direction:column;border-top:1px solid var(--line);}
  .drawer-links a{padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink);display:flex;align-items:center;justify-content:space-between;}
  .drawer-links a[aria-current="page"]{color:var(--brand);}
  .drawer-links a::after{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--muted);}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;color:#fff;overflow:hidden;
    background-image:linear-gradient(rgba(20,18,28,.78),rgba(20,18,28,.66)),url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
  }
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background-image:radial-gradient(rgba(255,255,255,.35) 1px, transparent 1px);
    background-size:88px 88px;
  }
  .hero-inner{position:relative;z-index:2;padding:68px 0 64px;max-width:820px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(246,245,242,.62);margin-bottom:22px;flex-wrap:wrap;}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb span.now{color:#fff;}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
    background:rgba(23,184,166,.16);color:#5FE0D0;font-size:13px;font-weight:600;margin-bottom:20px;
    border:1px solid rgba(23,184,166,.3);
  }
  .hero h1{color:#fff;font-size:clamp(28px,4.4vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.16;margin-bottom:18px;}
  .hero h1 em{font-style:normal;color:var(--brand);}
  .hero-lead{font-size:17px;line-height:1.85;color:rgba(246,245,242,.82);max-width:700px;margin-bottom:30px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:14px;color:rgba(246,245,242,.72);}
  .hero-meta span{display:inline-flex;align-items:center;gap:8px;}
  .hero-meta span::before{content:"";width:1px;height:12px;background:rgba(246,245,242,.28);display:none;}
  .hero-meta span + span{padding-left:14px;border-left:1px solid rgba(246,245,242,.24);}
  .hero-meta b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums;}

  /* ---------- Sections ---------- */
  .section{padding:80px 0;}
  .section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  @media (max-width:1024px){.section{padding:64px 0;} .hero-inner{padding:56px 0 52px;}}
  @media (max-width:640px){.section{padding:48px 0;} .hero-inner{padding:44px 0 44px;}}

  .section-head{max-width:760px;margin-bottom:40px;}
  .section-head .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);
    letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;
  }
  .section-head .eyebrow::before{content:"";width:12px;height:2px;background:var(--brand);display:inline-block;}
  .section-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;margin-bottom:14px;}
  .section-head p{color:var(--muted);font-size:16px;max-width:660px;}

  /* ---------- Stats strip ---------- */
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid var(--line);padding-top:32px;}
  .stat-num{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
  .stat-num small{font-size:14px;font-weight:600;color:var(--brand);margin-left:4px;}
  .stat-label{font-size:14px;color:var(--muted);margin-top:4px;}
  @media (max-width:768px){.stats{grid-template-columns:repeat(2,1fr);gap:20px;}}

  /* ---------- Timeline ---------- */
  .timeline{position:relative;padding-left:0;}
  .timeline::before{content:"";position:absolute;left:9px;top:18px;bottom:26px;width:1px;background:var(--line);}
  .tl-item{position:relative;padding-left:40px;margin-bottom:20px;}
  .tl-node{
    position:absolute;left:4px;top:22px;width:11px;height:11px;border-radius:999px;background:var(--accent);
    box-shadow:0 0 0 4px rgba(255,122,69,.16);
  }
  .tl-body{
    padding:20px 22px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .tl-item:hover .tl-body{transform:translateX(4px) translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(23,184,166,.4);}
  .tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
  .tl-step{font-size:13px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.06em;}
  .tl-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
  .badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:rgba(23,184,166,.1);color:var(--brand-deep);font-size:12px;font-weight:600;}
  .tl-title{font-size:19px;font-weight:700;margin-bottom:8px;line-height:1.45;}
  .tl-item:hover .tl-title{color:var(--brand-deep);}
  .tl-desc{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:12px;}

  .tl-figure{margin:8px 0 24px 40px;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--paper-2);}
  .tl-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;}
  .tl-figure figcaption{padding:10px 16px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);}
  @media (max-width:640px){.tl-figure{margin-left:40px;}}

  /* ---------- Scene blocks ---------- */
  .scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
  .scene + .scene{margin-top:56px;}
  .scene.reverse .scene-media{order:2;}
  .scene-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--paper-2);}
  .scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .scene h3{font-size:21px;font-weight:800;margin-bottom:12px;}
  .scene p{color:var(--muted);font-size:15.5px;margin-bottom:16px;}
  .point-list li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--ink);font-size:15px;}
  .point-list li::before{content:"";position:absolute;left:0;top:12px;width:12px;height:2px;background:var(--brand);border-radius:2px;}
  .scene .text-link{margin-top:6px;}
  @media (max-width:900px){
    .scene{grid-template-columns:1fr;gap:26px;}
    .scene.reverse .scene-media{order:0;}
  }

  /* ---------- Steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--paper-2);}
  .step{padding:26px 24px;border-right:1px solid var(--line);position:relative;transition:background .22s var(--ease);}
  .step:last-child{border-right:0;}
  .step:hover{background:var(--paper);}
  .step-num{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.08em;margin-bottom:10px;display:block;}
  .step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
  .step p{font-size:14px;color:var(--muted);line-height:1.75;}
  @media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr);} .step:nth-child(2){border-right:0;} .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--line);}}
  @media (max-width:520px){.steps{grid-template-columns:1fr;} .step{border-right:0;border-bottom:1px solid var(--line);} .step:last-child{border-bottom:0;}}

  /* ---------- FAQ ---------- */
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 4px;font-size:16.5px;font-weight:600;color:var(--ink);transition:color .22s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand-deep);}
  .faq-item summary i{font-size:13px;color:var(--brand);transition:transform .24s var(--ease);flex:0 0 auto;}
  .faq-item[open] summary i{transform:rotate(45deg);}
  .faq-answer{padding:0 4px 24px;color:var(--muted);font-size:15px;line-height:1.85;max-width:860px;}

  /* ---------- CTA ---------- */
  .cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden;}
  .cta-band::before{
    content:"";position:absolute;inset:0;opacity:.55;pointer-events:none;
    background-image:linear-gradient(rgba(20,18,28,.86),rgba(20,18,28,.9)),url('/assets/images/backpic/back-3.png');
    background-size:cover;background-position:center;
  }
  .cta-inner{position:relative;z-index:2;padding:72px 0;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
  .cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);margin-bottom:14px;}
  .cta-band p{color:rgba(246,245,242,.76);font-size:16px;max-width:520px;}
  .subscribe-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-card);padding:24px;}
  .subscribe-box label{display:block;font-size:14px;font-weight:600;color:#fff;margin-bottom:10px;}
  .subscribe-row{display:flex;gap:10px;flex-wrap:wrap;}
  .subscribe-row input{
    flex:1 1 200px;height:46px;padding:0 16px;border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .subscribe-row input::placeholder{color:rgba(246,245,242,.5);}
  .subscribe-row input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,184,166,.24);}
  .subscribe-hint{font-size:13px;color:rgba(246,245,242,.58);margin-top:12px;}
  @media (max-width:900px){.cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--ink);color:var(--paper);padding:64px 0 28px;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);}
  .footer-brand .logo-mark{color:#fff;font-size:19px;}
  .footer-brand .logo-sub{color:var(--brand);}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(246,245,242,.66);max-width:340px;}
  .footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{font-size:14px;color:rgba(246,245,242,.7);transition:color .22s var(--ease),transform .22s var(--ease);}
  .footer-links a:hover{color:var(--brand);transform:translateX(3px);}
  .footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:22px;font-size:13px;color:rgba(246,245,242,.5);}
  @media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
  @media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}

  /* ---------- Sticky CTA ---------- */
  .sticky-cta{
    position:fixed;left:0;right:0;bottom:0;z-index:60;height:64px;
    background:rgba(20,18,28,.96);border-top:1px solid rgba(255,255,255,.08);
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:0 32px calc(0px + env(safe-area-inset-bottom));
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .sticky-cta.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none;}
  .sticky-cta p{font-size:14px;color:rgba(246,245,242,.8);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  @media (max-width:640px){
    .sticky-cta{height:60px;padding:0 20px calc(0px + env(safe-area-inset-bottom));}
    .sticky-cta p{font-size:13px;}
  }

  /* ---------- Reveal ---------- */
  body.js-ready .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
  body.js-ready .reveal.is-visible{opacity:1;transform:none;}
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
    body.js-ready .reveal{opacity:1;transform:none;}
  }

  @media (max-width:767px){
    .hide-sm{display:none !important;}
    .header-search{display:none;}
  }
  @media (min-width:768px){
    .menu-btn{display:none;}
  }