/* roulang page: index */
:root{
    --brand:#FF5A2B;
    --brand-dark:#E8451B;
    --deep:#0E3B32;
    --lime:#DFFF4F;
    --bg:#F6F5F1;
    --surface:#FFFFFF;
    --ink:#14161A;
    --muted:#5A6169;
    --line:#E4E2DB;
    --r-card:16px;
    --r-btn:12px;
    --r-pill:999px;
    --shadow-sm:0 1px 2px rgba(20,22,26,.05);
    --shadow-hover:0 16px 40px -22px rgba(20,22,26,.25);
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.15;letter-spacing:-0.01em;}
  p{margin:0;}
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;height:auto;}
  button,input{font-family:inherit;font-size:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  .wrap{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media(min-width:768px){.wrap{padding-left:24px;padding-right:24px;}}
  @media(min-width:1024px){.wrap{padding-left:32px;padding-right:32px;}}

  .sec{padding-top:64px;padding-bottom:64px;}
  @media(min-width:768px){.sec{padding-top:88px;padding-bottom:88px;}}
  @media(min-width:1024px){.sec{padding-top:112px;padding-bottom:112px;}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(246,245,241,.98);
    border-bottom:1px solid transparent;
    transition:background .18s ease-out,border-color .18s ease-out;
  }
  .site-header.is-compact{background:rgba(246,245,241,.96);border-bottom:1px solid var(--line);}
  .nav-top{
    display:flex;align-items:center;gap:16px;
    padding-top:14px;padding-bottom:14px;
    transition:padding .18s ease-out;
  }
  .site-header.is-compact .nav-top{padding-top:8px;padding-bottom:8px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;background:var(--deep);
    display:flex;align-items:center;justify-content:center;
    color:var(--lime);font-size:15px;font-weight:800;
  }
  .brand-text{font-size:18px;font-weight:800;letter-spacing:-0.02em;white-space:nowrap;}
  .brand-text .c1{color:var(--brand);}
  .brand-text .c2{color:var(--ink);}
  .nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .search-box{
    display:none;align-items:center;gap:8px;
    border:1px solid var(--line);border-radius:var(--r-pill);
    background:var(--surface);padding:7px 14px;min-width:210px;
    transition:border-color .16s ease-out,box-shadow .16s ease-out;
  }
  @media(min-width:1024px){.search-box{display:flex;}}
  .search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.12);}
  .search-box i{color:var(--muted);font-size:14px;}
  .search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-btn);font-weight:600;font-size:15px;
    padding:11px 20px;border:1.5px solid transparent;cursor:pointer;
    transition:transform .16s ease-out,background .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
    min-height:44px;
  }
  .btn i{transition:transform .16s ease-out;}
  .btn:hover{transform:translateY(-1px);}
  .btn:hover i{transform:translateX(4px);}
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
  .btn-primary:hover{background:var(--brand-dark);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:#fff;}
  .btn-lime{background:var(--lime);color:var(--deep);}
  .btn-lime:hover{background:#cdf23c;}
  .btn-sm{padding:8px 14px;font-size:14px;min-height:40px;}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
    background:var(--surface);color:var(--ink);cursor:pointer;
  }
  @media(min-width:1024px){.nav-toggle{display:none;}}
  .nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .channel-bar{border-top:1px solid var(--line);}
  .channel-inner{
    display:flex;align-items:center;gap:6px;
    overflow-x:auto;scroll-snap-type:x proximity;
    padding-top:8px;padding-bottom:8px;
    -ms-overflow-style:none;scrollbar-width:none;
  }
  .channel-inner::-webkit-scrollbar{display:none;}
  .channel-link{
    position:relative;scroll-snap-align:start;white-space:nowrap;
    padding:8px 12px;font-size:14.5px;font-weight:500;color:var(--muted);
    border-radius:8px;transition:color .16s ease-out,background .16s ease-out;
  }
  .channel-link:hover{color:var(--ink);background:rgba(14,59,50,.05);}
  .channel-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .channel-link.active{color:var(--ink);font-weight:700;}
  .channel-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .trend-line{
    display:none;align-items:center;gap:8px;margin-left:auto;flex-shrink:0;
    padding-left:16px;border-left:1px solid var(--line);
  }
  @media(min-width:1280px){.trend-line{display:flex;}}
  .trend-label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:500;
    background:rgba(14,59,50,.08);color:var(--deep);white-space:nowrap;
    transition:background .16s ease-out,color .16s ease-out;
  }
  .pill:hover{background:var(--deep);color:#fff;}
  .pill-lime{background:rgba(223,255,79,.5);color:var(--deep);}

  /* 抽屉 */
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
    background:var(--surface);z-index:80;
    transform:translateX(102%);transition:transform .24s ease-out;
    box-shadow:-18px 0 44px -28px rgba(20,22,26,.4);
    padding:22px 20px;overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(20,22,26,.4);z-index:70;
    opacity:0;pointer-events:none;transition:opacity .24s ease-out;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-title{font-size:15px;font-weight:700;}
  .drawer-close{
    width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
    background:transparent;color:var(--ink);cursor:pointer;
  }
  .drawer-link{
    display:block;padding:13px 4px;font-size:15px;font-weight:500;
    border-bottom:1px solid var(--line);color:var(--ink);
  }
  .drawer-link:hover{color:var(--brand);}
  .drawer-search{
    display:flex;align-items:center;gap:8px;margin:16px 0;
    border:1px solid var(--line);border-radius:var(--r-pill);padding:10px 14px;
  }
  .drawer-search input{border:0;outline:0;width:100%;background:transparent;font-size:14px;}
  .drawer-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:var(--deep);}
  .hero-media{position:absolute;inset:0;}
  .hero-media img{width:100%;height:100%;object-fit:cover;opacity:.85;}
  .hero-scrim{
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(20,22,26,.82) 0%,rgba(20,22,26,.62) 46%,rgba(20,22,26,.28) 100%);
  }
  .hero-inner{position:relative;padding-top:72px;padding-bottom:72px;}
  @media(min-width:768px){.hero-inner{padding-top:104px;padding-bottom:104px;}}
  .hero-copy{max-width:640px;color:#fff;}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:var(--r-pill);
    background:rgba(223,255,79,.16);color:var(--lime);
    font-size:12.5px;font-weight:600;letter-spacing:.06em;
    border:1px solid rgba(223,255,79,.34);
  }
  .hero h1{
    margin-top:20px;
    font-size:clamp(2rem,5vw,4rem);
    font-weight:800;color:#fff;
  }
  .hero-sub{margin-top:18px;font-size:17px;line-height:1.7;color:rgba(255,255,255,.82);max-width:520px;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
  .hero-stats{
    display:flex;flex-wrap:wrap;gap:28px;margin-top:42px;
    padding-top:26px;border-top:1px solid rgba(255,255,255,.18);
  }
  .hero-stats .st-num{font-size:26px;font-weight:800;color:var(--lime);}
  .hero-stats .st-txt{font-size:13.5px;color:rgba(255,255,255,.7);}

  /* ---------- 趋势条 ---------- */
  .trendbar{padding:20px 0;border-bottom:1px solid var(--line);background:var(--surface);}
  .trendbar-inner{display:flex;align-items:center;gap:10px;overflow-x:auto;padding-bottom:2px;}
  .trendbar-inner::-webkit-scrollbar{display:none;}
  .trendbar-title{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);flex-shrink:0;}

  /* ---------- 通用板块头 ---------- */
  .sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
  .sec-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;}
  .sec-desc{margin-top:10px;color:var(--muted);font-size:15.5px;max-width:640px;}
  .sec-more{
    display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand);
    padding:8px 2px;border-bottom:1.5px solid transparent;transition:border-color .16s ease-out;
  }
  .sec-more:hover{border-color:var(--brand);}
  .sec-more i{transition:transform .16s ease-out;}
  .sec-more:hover i{transform:translateX(4px);}

  /* ---------- 栏目入口：1 大 + 4 小 ---------- */
  .ch-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media(min-width:768px){.ch-grid{grid-template-columns:repeat(2,1fr);gap:22px;}}
  @media(min-width:1024px){.ch-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
  .ch-card{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;
    box-shadow:var(--shadow-sm);
    transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .ch-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-hover);}
  .ch-card:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
  .ch-card .ch-img{aspect-ratio:16/10;overflow:hidden;background:#E9E7E0;}
  .ch-card .ch-img img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease-out;}
  .ch-card:hover .ch-img img{transform:scale(1.03);}
  .ch-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
  .ch-tag{
    align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.06em;
    padding:3px 10px;border-radius:var(--r-pill);
    background:rgba(14,59,50,.12);color:var(--deep);
  }
  .ch-name{font-size:17px;font-weight:700;}
  .ch-desc{font-size:14.5px;color:var(--muted);line-height:1.7;}
  .ch-foot{margin-top:auto;padding-top:12px;font-size:13.5px;font-weight:600;color:var(--brand);display:flex;align-items:center;gap:6px;}
  .ch-card-lg{grid-column:span 1;}
  @media(min-width:768px){.ch-card-lg{grid-column:span 2;}}
  @media(min-width:1024px){
    .ch-card-lg{grid-column:span 2;grid-row:span 2;}
    .ch-card-lg .ch-img{aspect-ratio:16/9;}
    .ch-card-lg .ch-name{font-size:22px;}
    .ch-card-lg .ch-desc{font-size:15px;}
  }
  .ch-card-lg .ch-img::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(20,22,26,0) 42%,rgba(20,22,26,.34) 100%);
    pointer-events:none;
  }

  /* ---------- 时间轴 ---------- */
  .timeline{display:grid;grid-template-columns:1fr;gap:0;}
  @media(min-width:1024px){.timeline{grid-template-columns:repeat(4,1fr);gap:28px;}}
  .step{
    position:relative;padding:26px 0 26px 34px;border-left:1px solid var(--line);
  }
  @media(min-width:1024px){
    .step{border-left:0;border-top:1px solid var(--line);padding:28px 4px 0 0;}
  }
  .step-num{
    font-size:38px;font-weight:800;color:var(--brand);line-height:1;
    font-variant-numeric:tabular-nums;
  }
  .step-dot{
    position:absolute;left:-5px;top:34px;width:9px;height:9px;border-radius:50%;
    background:var(--brand);
  }
  @media(min-width:1024px){.step-dot{left:0;top:-5px;}}
  .step h3{margin-top:14px;font-size:17px;font-weight:700;}
  .step p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.7;}

  /* ---------- 内容权益 ---------- */
  .benefit-grid{display:grid;grid-template-columns:1fr;gap:22px;}
  @media(min-width:1024px){.benefit-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
  .benefit-main{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
    transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  @media(min-width:1024px){.benefit-main{grid-column:span 1;grid-row:span 2;}}
  .benefit-main:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-hover);}
  .benefit-main .bm-img{aspect-ratio:16/10;overflow:hidden;background:#E9E7E0;}
  @media(min-width:1024px){.benefit-main .bm-img{aspect-ratio:4/3;}}
  .benefit-main .bm-img img{width:100%;height:100%;object-fit:cover;}
  .bm-body{padding:22px;display:flex;flex-direction:column;gap:10px;}
  .benefit-side{display:grid;grid-template-columns:1fr;gap:22px;}
  @media(min-width:640px){.benefit-side{grid-template-columns:repeat(2,1fr);}}
  @media(min-width:1024px){.benefit-side{grid-column:span 2;grid-template-columns:repeat(2,1fr);gap:24px;}}
  .benefit-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px;display:flex;gap:16px;box-shadow:var(--shadow-sm);
    transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .benefit-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-hover);}
  .benefit-icon{
    width:44px;height:44px;flex-shrink:0;border-radius:12px;
    background:rgba(14,59,50,.08);color:var(--deep);
    display:flex;align-items:center;justify-content:center;font-size:17px;
  }
  .benefit-card h3{font-size:16.5px;font-weight:700;}
  .benefit-card p{margin-top:7px;font-size:14.5px;color:var(--muted);line-height:1.7;}
  .chip{
    display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--r-pill);
    font-size:12px;font-weight:600;letter-spacing:.06em;
  }
  .chip-deep{background:var(--deep);color:#fff;}
  .chip-soft{background:rgba(14,59,50,.12);color:var(--deep);}
  .chip-brand{background:rgba(255,90,43,.12);color:var(--brand-dark);}

  /* ---------- 进度带 ---------- */
  .progress-band{background:var(--deep);color:#fff;padding:44px 0;}
  @media(min-width:768px){.progress-band{padding:56px 0;}}
  .pb-grid{display:grid;grid-template-columns:1fr;gap:30px;align-items:center;}
  @media(min-width:1024px){.pb-grid{grid-template-columns:1.35fr 1fr;gap:56px;}}
  .pb-label{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.6);}
  .pb-title{margin-top:12px;font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;color:#fff;}
  .pb-note{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72);max-width:520px;}
  .bar-track{
    margin-top:24px;height:12px;border-radius:var(--r-pill);
    background:rgba(255,255,255,.15);overflow:hidden;position:relative;
  }
  .bar-fill{
    height:100%;width:0;border-radius:var(--r-pill);background:var(--brand);
    display:flex;justify-content:flex-end;align-items:center;
    animation:barGrow .8s ease-out forwards;
  }
  .bar-fill::after{
    content:"";width:34px;height:100%;background:var(--lime);border-radius:var(--r-pill);
  }
  @keyframes barGrow{to{width:78%;}}
  .pb-nums{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
  @media(min-width:640px){.pb-nums{grid-template-columns:repeat(3,1fr);}}
  .pb-num-item .n{font-size:30px;font-weight:800;color:var(--lime);}
  .pb-num-item .t{font-size:13.5px;color:rgba(255,255,255,.72);margin-top:4px;}

  /* ---------- CTA 大条 ---------- */
  .cta-band{
    background:var(--surface);border:1px solid var(--line);border-radius:20px;
    padding:34px 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
    box-shadow:var(--shadow-sm);
  }
  @media(min-width:768px){.cta-band{padding:46px 44px;}}
  .cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;max-width:640px;}
  .cta-band p{margin-top:10px;color:var(--muted);font-size:15.5px;}

  /* ---------- 最新信息 ---------- */
  .news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);gap:22px;}}
  @media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
  .news-card{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;
    box-shadow:var(--shadow-sm);
    transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .news-card::before{
    content:"";position:absolute;top:-1px;left:22px;width:52px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);
  }
  .news-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-hover);}
  .news-card h3{font-size:17px;font-weight:700;line-height:1.45;}
  .news-card h3 a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .news-card h3 a:hover{color:var(--brand);}
  .news-card .sum{
    font-size:14.5px;color:var(--muted);line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-meta{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);
  }
  .news-meta .go{margin-left:auto;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
  .news-meta .go i{transition:transform .16s ease-out;}
  .news-card:hover .news-meta .go i{transform:translateX(4px);}
  .empty-box{
    grid-column:1/-1;text-align:center;padding:52px 24px;
    border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);
  }
  .empty-box .ico{
    width:54px;height:54px;margin:0 auto 16px;border-radius:16px;
    background:rgba(14,59,50,.08);color:var(--deep);
    display:flex;align-items:center;justify-content:center;font-size:22px;
  }
  .empty-box p{color:var(--muted);font-size:15px;}

  /* ---------- 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;gap:16px;
    padding:20px 2px;font-size:16px;font-weight:600;color:var(--ink);
    transition:color .16s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand);}
  .faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
  .faq-icon{
    margin-left:auto;width:28px;height:28px;flex-shrink:0;border-radius:50%;
    border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
    color:var(--muted);font-size:12px;transition:transform .22s ease-out,background .16s ease-out,color .16s ease-out;
  }
  .faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand);border-color:var(--brand);color:#fff;}
  .faq-answer{padding:0 2px 22px;font-size:15px;line-height:1.75;color:var(--muted);max-width:820px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--deep);color:#EDF2EF;padding:56px 0 0;}
  .foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
  @media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}}
  .foot-brand{font-size:19px;font-weight:800;color:#fff;}
  .foot-brand .c1{color:var(--lime);}
  .foot-desc{margin-top:14px;font-size:14.5px;color:rgba(237,242,239,.72);line-height:1.8;max-width:340px;}
  .foot-title{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:rgba(237,242,239,.55);margin-bottom:16px;}
  .foot-link{display:block;padding:7px 0;font-size:14.5px;color:rgba(237,242,239,.84);transition:color .16s ease-out,padding-left .16s ease-out;}
  .foot-link:hover{color:var(--lime);padding-left:4px;}
  .foot-link:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
  .foot-bottom{
    margin-top:44px;border-top:1px solid rgba(237,242,239,.16);
    padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
    font-size:13.5px;color:rgba(237,242,239,.62);
  }
  .to-top{
    margin-left:auto;display:inline-flex;align-items:center;gap:8px;
    padding:9px 16px;border-radius:var(--r-pill);border:1px solid rgba(237,242,239,.28);
    color:#EDF2EF;background:transparent;cursor:pointer;font-size:13.5px;
    transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
  }
  .to-top:hover{background:var(--lime);color:var(--deep);border-color:var(--lime);}
  .to-top:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

  /* 入场动效 */
  .fade-up{opacity:0;transform:translateY(14px);animation:fadeUp .42s ease-out forwards;}
  @keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
  .d1{animation-delay:.04s}.d2{animation-delay:.1s}.d3{animation-delay:.16s}
  .d4{animation-delay:.22s}.d5{animation-delay:.28s}.d6{animation-delay:.34s}

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;}
    html{scroll-behavior:auto;}
    .fade-up{opacity:1;transform:none;}
    .bar-fill{width:78%;}
  }

/* roulang page: article */
:root{
  --brand:#FF5A2B;
  --deep:#0E3B32;
  --lime:#DFFF4F;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --ink:#14161A;
  --muted:#5A6169;
  --line:#E4E2DB;
  --danger:#C2410C;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 1px 2px rgba(20,22,26,.05);
  --shadow-2:0 16px 40px -22px rgba(20,22,26,.25);
  --wrap:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.96);
  border-bottom:1px solid var(--line);
  backdrop-saturate:120%;
  transition:box-shadow .2s ease;
}
.site-header.compact{box-shadow:0 8px 24px -20px rgba(20,22,26,.5)}
.brand-inner{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:16px 0;transition:padding .2s ease}
.site-header.compact .brand-inner{padding:7px 0}
.logo{
  font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  display:inline-flex;align-items:center;white-space:nowrap;
}
.logo .c1{color:var(--brand)}
.brand-tools{display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.12)}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{border:0;outline:0;background:transparent;font-size:14px;width:156px;color:var(--ink)}
.search-box input::placeholder{color:#9aa0a6}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  cursor:pointer;transition:border-color .18s ease,color .18s ease;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){.menu-btn{display:none}}
@media(max-width:767px){.search-box{display:none}.logo{font-size:17px}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 20px;border-radius:var(--r-sm);
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  min-height:44px;
}
.btn i{transition:transform .18s ease}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(255,90,43,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-lime{background:var(--lime);color:var(--deep)}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 14px 28px -18px rgba(223,255,79,.9)}
.btn-sm{padding:9px 16px;font-size:14px}
@media(max-width:767px){.btn-sm{display:none}}

/* ---------- Channel bar ---------- */
.channel-bar{background:rgba(246,245,241,.96)}
.channel-inner{
  display:flex;align-items:center;gap:4px;overflow-x:auto;
  padding:10px 0;scrollbar-width:none;-ms-overflow-style:none;
  scroll-snap-type:x proximity;
}
.site-header.compact .channel-inner{padding:5px 0}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;scroll-snap-align:start;white-space:nowrap;
  font-size:14.5px;color:var(--muted);padding:9px 12px;border-radius:10px;
  transition:color .16s ease,background-color .16s ease;
}
.channel-link:hover{color:var(--ink);background:#fff}
.channel-link.active{color:var(--ink);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
}
.trend-line{
  display:flex;align-items:center;gap:8px;margin-left:auto;padding-left:16px;
  border-left:1px solid var(--line);white-space:nowrap;
}
.trend-label{font-size:12px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.pill{
  display:inline-flex;align-items:center;font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  transition:border-color .16s ease,color .16s ease;
}
.pill:hover{border-color:var(--brand);color:var(--brand)}
@media(max-width:1023px){.trend-line{display:none}}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,26,.45);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .26s ease;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .28s ease;padding:22px;overflow-y:auto;
  box-shadow:-24px 0 48px -30px rgba(20,22,26,.5);
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-group{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.drawer-link{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--ink);border:1px solid transparent}
.drawer-link:hover{background:var(--bg);border-color:var(--line)}
.drawer-link.active{background:#fff;color:var(--brand);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:16px}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px}
.drawer-search i{color:var(--muted)}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--muted);padding:22px 0 0}
.crumb a{color:var(--muted);transition:color .16s ease}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#c6c3ba}
.crumb .now{color:var(--ink);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Article head ---------- */
.art-head{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;margin-top:26px;box-shadow:var(--shadow-1);
}
@media(min-width:768px){.art-head{padding:40px 44px}}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  letter-spacing:.08em;padding:5px 12px;border-radius:999px;
  background:rgba(14,59,50,.1);color:var(--deep);
}
.badge-lime{background:rgba(223,255,79,.55);color:var(--deep)}
.tag-plain{font-size:12.5px;color:var(--muted);letter-spacing:.06em}
.art-badge-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.art-h1{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;line-height:1.22;color:var(--ink)}
.art-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:13.5px;color:var(--muted);
}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:#c6c3ba}
.art-meta i{color:var(--brand);margin-right:5px}

/* ---------- Layout ---------- */
.art-layout{display:grid;grid-template-columns:1fr;gap:40px;margin-top:44px;align-items:start}
@media(min-width:1280px){.art-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}}
.art-main{min-width:0}
.art-body{max-width:820px;margin:0 auto;font-size:16.5px;line-height:1.85;color:#22262c}
.art-body>*:first-child{margin-top:0}
.art-body p{margin:0 0 1.1em}
.art-body h2{
  position:relative;font-size:clamp(1.25rem,2.2vw,1.5rem);font-weight:700;
  margin:40px 0 16px;padding-left:14px;line-height:1.4;
}
.art-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;
  background:var(--brand);border-radius:2px;
}
.art-body h3{font-size:1.15rem;font-weight:700;margin:28px 0 12px}
.art-body h4{font-size:1rem;font-weight:700;margin:22px 0 10px}
.art-body ul,.art-body ol{padding-left:22px;margin:0 0 1.1em;line-height:1.9}
.art-body li{margin-bottom:6px}
.art-body blockquote{
  margin:24px 0;padding:16px 20px;background:#fff;border-left:3px solid var(--deep);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--muted);
}
.art-body blockquote p:last-child{margin-bottom:0}
.art-body img{border-radius:var(--r-sm);margin:22px 0;height:auto}
.art-body figure{margin:26px 0}
.art-body figure img{margin:0}
.art-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.art-body a{color:var(--brand);border-bottom:1px solid rgba(255,90,43,.35)}
.art-body a:hover{border-bottom-color:var(--brand)}
.art-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:22px 0}
.art-body th,.art-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.art-body th{background:#fff;font-weight:600}
.art-body code{background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}
.img-fallback{background:#e8e6e0}
.empty-box{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;
}
.empty-box .ic{
  width:56px;height:56px;border-radius:50%;background:rgba(14,59,50,.08);color:var(--deep);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;
}

/* ---------- Sidebar ---------- */
.art-side{display:none}
@media(min-width:1280px){.art-side{display:block;position:sticky;top:132px}}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;margin-bottom:20px;
}
.side-title{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--deep);font-weight:700;margin-bottom:14px}
.side-link{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--muted);padding:9px 0;border-bottom:1px solid var(--line);transition:color .16s ease}
.side-link:last-child{border-bottom:0}
.side-link:hover{color:var(--brand)}
.side-link i{font-size:11px;opacity:.6}
.progress-track{height:8px;border-radius:999px;background:rgba(20,22,26,.08);overflow:hidden;margin-top:12px}
.progress-fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--lime));transition:width .8s ease}

/* ---------- Note strip ---------- */
.note-strip{
  max-width:820px;margin:40px auto 0;display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:0 var(--r-md) var(--r-md) 0;padding:18px 20px;
}
.note-strip i{color:var(--brand);margin-top:4px}
.note-strip p{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- Section ---------- */
.section{margin-top:88px}
@media(min-width:1024px){.section{margin-top:112px}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-title{font-size:clamp(1.35rem,2.6vw,1.9rem);font-weight:800}
.sec-sub{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:56ch}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.more-link i{transition:transform .18s ease}
.more-link:hover i{transform:translateX(4px)}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:640px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.card-thumb{aspect-ratio:16/10;overflow:hidden;background:#ecebe6}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:1.05rem;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--muted);
}
.card-foot .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.card-foot .go i{transition:transform .18s ease}
.card:hover .card-foot .go i{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--deep);border-radius:var(--r-lg);padding:44px 28px;
  display:grid;gap:22px;align-items:center;color:#EDEFEA;
}
@media(min-width:768px){.cta-band{grid-template-columns:1fr auto;padding:52px 48px}}
.cta-band h2{font-size:clamp(1.4rem,2.8vw,2rem);font-weight:800;color:#fff}
.cta-band p{font-size:14.5px;color:rgba(237,239,234,.75);margin-top:12px;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--deep);color:#EDEFEA;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0 34px}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}}
.foot-brand{font-weight:800;font-size:19px;color:#fff;margin-bottom:12px;letter-spacing:-.01em}
.foot-brand .c1{color:var(--brand)}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(237,239,234,.72);max-width:36ch}
.foot-title{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--lime);font-weight:700;margin-bottom:14px}
.foot-link{display:block;font-size:14px;color:rgba(237,239,234,.75);padding:5px 0;transition:color .16s ease,transform .16s ease}
.foot-link:hover{color:#fff;transform:translateX(3px)}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(237,239,234,.62);
}
.to-top{
  background:transparent;border:1px solid rgba(255,255,255,.28);color:#EDEFEA;
  padding:9px 16px;border-radius:999px;font-size:13px;cursor:pointer;min-height:44px;
  transition:border-color .18s ease,color .18s ease;
}
.to-top:hover{border-color:var(--lime);color:var(--lime)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s ease,transform .42s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand:#FF5A2B;
  --brand-dark:#E44A1F;
  --deep:#0E3B32;
  --lime:#DFFF4F;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --ink:#14161A;
  --muted:#5A6169;
  --line:#E4E2DB;
  --soft:#EFEEE8;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.05);
  --sh-2:0 16px 40px -22px rgba(20,22,26,.25);
  --wrap:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,241,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 10px 28px -24px rgba(20,22,26,.6)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:76px;transition:height .2s ease-out}
.site-header.scrolled .brand-inner{height:62px}
.logo{display:inline-flex;align-items:center;gap:6px;font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo .c1{color:var(--brand)}
.logo:hover .c1{color:var(--brand-dark)}
.brand-actions{display:flex;align-items:center;gap:10px}
.search-box{display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);transition:border-color .16s,box-shadow .16s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.12)}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{border:0;outline:0;background:transparent;width:150px;font-size:14px}
.search-box input::placeholder{color:#9AA0A6}
.hamburger{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--card);align-items:center;justify-content:center;font-size:16px;color:var(--ink)}
.hamburger:hover{border-color:var(--brand);color:var(--brand)}

/* ============ 频道行 ============ */
.channel-bar{background:rgba(246,245,241,.96);border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:4px;height:54px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--r-pill);font-size:14.5px;color:var(--muted);white-space:nowrap;scroll-snap-align:start;transition:color .16s,background .16s}
.channel-link:hover{color:var(--ink);background:var(--soft)}
.channel-link.active{color:var(--ink);font-weight:700}
.channel-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--brand);border-radius:2px}
.trend-line{display:flex;align-items:center;gap:8px;margin-left:auto;padding-left:18px;white-space:nowrap}
.trend-label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.pill{display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--card);font-size:12.5px;color:var(--muted);transition:border-color .16s,color .16s,background .16s}
.pill:hover{border-color:var(--brand);color:var(--brand);background:#FFF3EE}

/* ============ 抽屉 ============ */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:var(--bg);z-index:100;transform:translateX(102%);transition:transform .26s ease-out;padding:22px;overflow-y:auto;border-left:1px solid var(--line)}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(20,22,26,.42);z-index:99;opacity:0;pointer-events:none;transition:opacity .22s}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--card)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-btn);font-size:15px;color:var(--muted);border:1px solid transparent}
.drawer-nav a:hover{border-color:var(--line);background:var(--card);color:var(--ink)}
.drawer-nav a.active{color:var(--ink);font-weight:700;background:var(--card);border-color:var(--line)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 22px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;border:1.5px solid transparent;transition:transform .16s ease-out,background .16s,color .16s,border-color .16s,box-shadow .16s}
.btn i{transition:transform .16s ease-out}
.btn:hover{transform:translateY(-2px)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);box-shadow:var(--sh-2)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-lime{background:var(--lime);color:var(--deep)}
.btn-lime:hover{background:#D2F53C}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.badge{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:var(--r-pill);background:rgba(14,59,50,.12);color:var(--deep);font-size:12.5px;font-weight:700;letter-spacing:.04em}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ============ 首屏 ============ */
.page-hero{padding:56px 0 64px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:center}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start;gap:18px;max-width:640px}
.hero-copy h1{font-size:clamp(2rem,4.4vw,3.25rem)}
.hero-copy h1 .hl{color:var(--brand)}
.hero-sub{font-size:16.5px;color:var(--muted);line-height:1.8;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}
.hero-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;width:100%;margin-top:14px;padding-top:22px;border-top:1px solid var(--line)}
.hero-facts .fk{font-size:24px;font-weight:800;color:var(--ink)}
.hero-facts .fk span{color:var(--brand)}
.hero-facts .fv{font-size:13px;color:var(--muted);letter-spacing:.02em}
.hero-media{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--soft)}
.hero-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media .cap{position:absolute;left:16px;bottom:16px;padding:7px 14px;border-radius:var(--r-pill);background:rgba(20,22,26,.68);color:#fff;font-size:12.5px;letter-spacing:.02em}
.img-fallback{background:#E4E2DB}

/* ============ 板块 ============ */
.section{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:30px}
.sec-kicker{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);font-weight:700}
.sec-title{font-size:clamp(1.5rem,3vw,2.25rem);margin-top:10px}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15.5px}

/* ============ 双栏 ============ */
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start}
.col-main .sec-head{margin-bottom:22px}
.entry-list{display:flex;flex-direction:column;gap:16px}
.entry{display:grid;grid-template-columns:auto minmax(0,1fr) 22px;gap:18px;align-items:start;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out}
.entry:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-2)}
.entry:hover .entry-arrow{color:var(--brand);transform:translateX(4px)}
.entry-idx{font-size:26px;font-weight:800;color:var(--brand);line-height:1;padding-top:4px}
.entry h3{font-size:1.15rem}
.entry h3 a:hover{color:var(--brand)}
.entry p{margin-top:8px;color:var(--muted);font-size:14.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-size:12px;padding:4px 11px;border-radius:var(--r-pill);background:rgba(14,59,50,.10);color:var(--deep);font-weight:600}
.entry-arrow{display:flex;align-items:center;justify-content:center;height:44px;color:var(--muted);transition:color .16s,transform .16s}
.entry.has-thumb{grid-template-columns:200px minmax(0,1fr);gap:20px}
.entry.has-thumb .thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--soft)}
.entry.has-thumb .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
.entry.has-thumb:hover .thumb img{transform:scale(1.03)}
.entry.has-thumb .entry-body{display:flex;flex-direction:column;gap:6px}
.entry.has-thumb .entry-body .top{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.entry.has-thumb .entry-idx{font-size:20px}

/* 侧栏 */
.col-side{position:sticky;top:136px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1)}
.side-title{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:12px}
.side-nav a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14.5px;color:var(--ink);border-bottom:1px dashed var(--line);transition:color .16s}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{color:var(--brand)}
.side-nav a.active{color:var(--brand);font-weight:700}
.side-nav a i{font-size:11px;color:var(--muted)}
.side-pills{display:flex;flex-wrap:wrap;gap:8px}
.side-rec{display:flex;flex-direction:column;gap:14px}
.side-rec li{display:flex;gap:10px;font-size:14px;line-height:1.6;color:var(--muted)}
.side-rec li b{color:var(--brand);font-variant-numeric:tabular-nums}
.side-rec li a:hover{color:var(--brand)}

/* ============ 维度网格 ============ */
.dim-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.dim{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out}
.dim:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-2)}
.dim .ic{width:44px;height:44px;border-radius:12px;background:rgba(255,90,43,.12);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.dim h3{font-size:1.05rem}
.dim p{margin-top:9px;color:var(--muted);font-size:14.5px;line-height:1.75}

/* ============ 深色进度区 ============ */
.deep-band{background:var(--deep);color:#F2F5F3;border-radius:20px;padding:38px 32px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center}
.deep-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);color:#fff}
.deep-band .say{margin-top:12px;color:rgba(242,245,243,.76);font-size:15px;line-height:1.8}
.bar-track{height:12px;border-radius:var(--r-pill);background:rgba(255,255,255,.15);overflow:hidden;margin-top:22px}
.bar-fill{height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--brand) 0%,var(--brand) 62%,var(--lime) 62%,var(--lime) 100%);width:0;transition:width .8s ease-out}
.bar-legend{display:flex;justify-content:space-between;margin-top:12px;font-size:13px;color:rgba(242,245,243,.7)}
.deep-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.deep-stats .st{padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12)}
.deep-stats .st b{display:block;font-size:30px;color:var(--lime);line-height:1.2;font-variant-numeric:tabular-nums}
.deep-stats .st span{font-size:13px;color:rgba(242,245,243,.75)}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 2px;font-size:16px;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);transition:transform .2s ease-out;line-height:1}
.faq details[open] summary::after{content:"−";transform:rotate(180deg)}
.faq .ans{padding:0 2px 22px;color:var(--muted);font-size:15px;line-height:1.75;max-width:64em}

/* ============ CTA ============ */
.cta-band{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:40px 34px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.cta-band p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:44em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#EAF0ED;margin-top:72px;padding:60px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-brand{font-size:19px;font-weight:800;letter-spacing:-.01em;margin-bottom:14px}
.foot-brand .c1{color:var(--lime)}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(234,240,237,.72);max-width:34em}
.foot-title{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:rgba(234,240,237,.6);font-weight:700;margin-bottom:14px}
.foot-link{display:block;padding:6px 0;font-size:14.5px;color:rgba(234,240,237,.82);transition:color .16s,transform .16s}
.foot-link:hover{color:var(--lime);transform:translateX(3px)}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(234,240,237,.65)}
.to-top{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:9px 18px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.24);color:#EAF0ED;font-size:13.5px;transition:background .16s,color .16s,border-color .16s}
.to-top:hover{background:var(--lime);color:var(--deep);border-color:var(--lime)}

/* ============ 入场动画 ============ */
.fade-up{opacity:0;transform:translateY(14px);animation:fadeUp .42s ease-out forwards}
@keyframes fadeUp{to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .bar-fill{width:78%!important}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .two-col{grid-template-columns:minmax(0,1fr)}
  .col-side{position:static}
  .dim-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .deep-band{grid-template-columns:minmax(0,1fr);gap:26px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:860px){
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .entry.has-thumb{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:768px){
  .brand-inner{height:66px}
  .search-box{display:none}
  .hamburger{display:inline-flex}
  .channel-inner{padding-bottom:2px}
  .trend-line{margin-left:12px}
  .hero-facts{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .hero-facts .fk{font-size:20px}
  .section{padding:56px 0}
  .entry{padding:18px;gap:14px}
  .dim-grid{grid-template-columns:minmax(0,1fr)}
  .deep-band{padding:28px 22px}
  .cta-band{padding:28px 22px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
}
@media(max-width:520px){
  .hero-facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .entry{grid-template-columns:auto minmax(0,1fr)}
  .entry-arrow{display:none}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
}

/* roulang page: category3 */
:root{
  --brand:#FF5A2B;
  --brand-dark:#E24A1F;
  --deep:#0E3B32;
  --lime:#DFFF4F;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --ink:#14161A;
  --muted:#5A6169;
  --line:#E4E2DB;
  --soft:#EFEDE7;
  --r-card:16px;
  --r-btn:12px;
  --shadow:0 1px 2px rgba(20,22,26,.05);
  --shadow-hover:0 16px 40px -22px rgba(20,22,26,.25);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.wrap{max-width:var(--container);margin:0 auto;padding:0 32px}
.nums{font-variant-numeric:tabular-nums;letter-spacing:.02em}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,245,241,.98);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:0 10px 30px -24px rgba(20,22,26,.55)}
.top-bar{padding:16px 0;transition:padding .2s ease}
.site-header.scrolled .top-bar{padding:9px 0}
.brand-row{display:flex;align-items:center;gap:20px;justify-content:space-between}
.logo{font-size:21px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo .c1{color:var(--brand)}
.logo .c2{color:var(--ink)}
.top-actions{display:flex;align-items:center;gap:12px}
.search-form{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 8px 6px 14px;transition:border-color .18s ease,box-shadow .18s ease}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.12)}
.search-form i{color:var(--muted);font-size:13px}
.search-form input{border:0;outline:none;background:transparent;width:168px;font-size:14px;color:var(--ink)}
.search-form input::placeholder{color:#9AA0A6}
.search-btn{border:0;background:var(--deep);color:#fff;border-radius:999px;padding:6px 14px;font-size:13px;cursor:pointer;transition:background .18s ease}
.search-btn:hover{background:#0a2c25}
.icon-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);cursor:pointer}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;border:1.5px solid transparent;min-height:44px}
.btn i{transition:transform .18s ease}
.btn:hover{transform:translateY(-2px)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);box-shadow:0 14px 28px -18px rgba(255,90,43,.9)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-lime{background:var(--lime);color:var(--deep)}
.btn-lime:hover{background:#d3f43c}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px}

/* channel bar */
.channel-bar{border-top:1px solid var(--line);background:transparent}
.channel-inner{display:flex;align-items:center;gap:6px;padding:7px 0;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;padding:8px 12px;font-size:14.5px;color:var(--muted);border-radius:8px;white-space:nowrap;transition:color .16s ease,background .16s ease}
.channel-link:hover{color:var(--ink);background:var(--soft)}
.channel-link.active{color:var(--ink);font-weight:700}
.channel-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;background:var(--brand);border-radius:2px}
.trend-line{display:flex;align-items:center;gap:8px;margin-left:auto;padding-left:16px;border-left:1px solid var(--line)}
.trend-label{font-size:12px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;white-space:nowrap}
.pill{font-size:12.5px;padding:5px 11px;border-radius:999px;background:rgba(14,59,50,.08);color:var(--deep);white-space:nowrap;transition:background .16s ease,color .16s ease}
.pill:hover{background:var(--deep);color:#fff}

/* drawer */
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;border-left:1px solid var(--line);z-index:120;transform:translateX(102%);transition:transform .28s ease;padding:24px 22px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(14,22,26,.42);z-index:110;opacity:0;pointer-events:none;transition:opacity .28s ease}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.drawer-title{font-weight:800;font-size:17px}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-link{display:block;padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--muted)}
.drawer-link.active{color:var(--brand);font-weight:700}
.drawer-link:hover{color:var(--ink)}
.drawer-cta{margin-top:22px;display:block;text-align:center}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;display:flex;align-items:center;min-height:520px;background:var(--deep)}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,20,18,.86) 0%,rgba(10,20,18,.66) 48%,rgba(10,20,18,.34) 100%)}
.hero-inner{position:relative;z-index:2;padding-top:74px;padding-bottom:74px;max-width:760px}
.badge-brand{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em;color:var(--lime);border:1px solid rgba(223,255,79,.5);border-radius:999px;padding:5px 14px}
.hero h1{color:#fff;font-size:clamp(1.9rem,4.4vw,3.2rem);font-weight:800;line-height:1.15;letter-spacing:-.01em;margin-top:20px}
.hero-sub{color:rgba(255,255,255,.82);font-size:17px;margin-top:16px;max-width:36em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.7)}
.hero-cta .btn-ghost:hover{background:#fff;color:var(--deep)}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
.hero-fact b{display:block;color:#fff;font-size:24px;font-weight:800;line-height:1.2}
.hero-fact span{font-size:13px;color:rgba(255,255,255,.68)}

/* ============ section base ============ */
.sec{padding:88px 0}
.sec-sm{padding:64px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-tag{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--brand);font-weight:700}
.sec-head h2{font-size:clamp(1.5rem,2.8vw,2.15rem);font-weight:800;line-height:1.2;margin-top:10px;letter-spacing:-.01em}
.sec-head p{color:var(--muted);margin-top:12px;font-size:15.5px}

/* intro cards */
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.intro-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.intro-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand)}
.intro-card .ico{width:42px;height:42px;border-radius:12px;background:rgba(14,59,50,.08);color:var(--deep);display:flex;align-items:center;justify-content:center;font-size:17px}
.intro-card h3{font-size:17.5px;font-weight:700;margin-top:16px}
.intro-card p{color:var(--muted);font-size:14.8px;margin-top:8px;line-height:1.75}

/* timeline */
.timeline-wrap{background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px 34px;box-shadow:var(--shadow)}
.timeline{position:relative}
.tl-item{display:grid;grid-template-columns:104px 1fr;gap:26px;padding:30px 0;border-bottom:1px solid var(--line)}
.tl-item:last-child{border-bottom:0}
.tl-no{font-size:38px;font-weight:800;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.02em;padding-top:4px}
.tl-body{position:relative;border-left:1px solid var(--line);padding-left:26px}
.tl-body::before{content:"";position:absolute;left:-5px;top:12px;width:9px;height:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(255,90,43,.14)}
.tl-stage{display:inline-block;font-size:12.5px;letter-spacing:.06em;color:var(--deep);background:rgba(14,59,50,.09);border-radius:999px;padding:3px 12px}
.tl-body h3{font-size:20px;font-weight:700;margin-top:12px;line-height:1.35}
.tl-body p{color:var(--muted);font-size:15.2px;margin-top:10px;line-height:1.8;max-width:62em}
.tl-meta{margin-top:12px;font-size:13px;color:#8A9096;display:flex;align-items:center;gap:8px}
.tl-meta i{color:var(--brand)}

/* checklist */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.media-frame{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--soft)}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.media-frame:hover img{transform:scale(1.03)}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.check-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 18px 18px 46px;position:relative;transition:border-color .18s ease,transform .18s ease}
.check-item:hover{border-color:var(--brand);transform:translateY(-3px)}
.check-item::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:16px;top:20px;font-size:12px;color:#fff;background:var(--brand);width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.check-item strong{display:block;font-size:15.5px;font-weight:700}
.check-item span{display:block;color:var(--muted);font-size:14px;margin-top:6px;line-height:1.7}

/* related cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand)}
.card-thumb{overflow:hidden;background:var(--soft)}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.card-badge{align-self:flex-start;font-size:12px;letter-spacing:.05em;color:var(--deep);background:rgba(14,59,50,.1);border-radius:999px;padding:3px 11px}
.card-body h3{font-size:17.5px;font-weight:700;margin-top:12px;line-height:1.45}
.card-body p{color:var(--muted);font-size:14.6px;margin-top:9px;line-height:1.75}
.card-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:#8A9096}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600}
.card-foot .go i{transition:transform .18s ease}
.card:hover .card-foot .go i{transform:translateX(4px)}

/* faq */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:20px;padding:8px 28px;box-shadow:var(--shadow)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.6}
.faq-q:hover{color:var(--brand)}
.faq-mark{position:relative;flex:0 0 16px;width:16px;height:16px}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease}
.faq-mark::before{left:0;top:7px;width:16px;height:2px}
.faq-mark::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-mark::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:2px 0 22px;color:var(--muted);font-size:15px;line-height:1.75;max-width:70em}
.faq-item.open .faq-a{max-height:340px}

/* cta band */
.cta-band{background:var(--deep);color:#F1F4F0;border-radius:24px;padding:58px 52px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;line-height:1.25;color:#fff;max-width:22em}
.cta-band p{color:rgba(241,244,240,.72);margin-top:12px;font-size:15.5px;max-width:34em}

/* footer */
.site-footer{background:var(--deep);color:#E8EDE9;margin-top:0;padding:72px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-brand{font-size:19px;font-weight:800;letter-spacing:-.01em}
.foot-brand .c1{color:var(--lime)}
.foot-desc{color:rgba(232,237,233,.66);font-size:14.2px;margin-top:14px;line-height:1.8;max-width:32em}
.foot-title{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:rgba(232,237,233,.55);margin-bottom:14px}
.foot-link{display:block;color:rgba(232,237,233,.85);font-size:14.6px;padding:6px 0;transition:color .16s ease,transform .16s ease}
.foot-link:hover{color:var(--lime);transform:translateX(3px)}
.foot-bottom{margin-top:52px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;font-size:13.5px;color:rgba(232,237,233,.6)}
.to-top{background:transparent;border:1px solid rgba(255,255,255,.3);color:#E8EDE9;border-radius:999px;padding:9px 18px;font-size:13.5px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;min-height:44px;transition:background .18s ease,color .18s ease,border-color .18s ease}
.to-top:hover{background:var(--lime);color:var(--deep);border-color:var(--lime)}

/* motion */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s ease,transform .42s ease}
.reveal.in{opacity:1;transform:none}

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

/* responsive */
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .sec{padding:72px 0}
  .intro-grid{grid-template-columns:1fr 1fr}
  .card-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .search-form input{width:120px}
}
@media (max-width:768px){
  .search-form{display:none}
  .icon-btn{display:flex}
  .trend-line{display:none}
  .intro-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .check-list{grid-template-columns:1fr}
  .hero{min-height:450px}
  .hero-inner{padding-top:56px;padding-bottom:56px}
  .tl-item{grid-template-columns:1fr;gap:12px;padding:24px 0}
  .tl-no{font-size:30px}
  .tl-body{border-left:0;padding-left:0}
  .tl-body::before{display:none}
  .timeline-wrap{padding:10px 20px}
  .faq-list{padding:6px 20px}
  .cta-band{padding:40px 26px;border-radius:20px}
  .sec{padding:60px 0}
}
@media (max-width:520px){
  .wrap{padding:0 20px}
  .logo{font-size:18px}
  .foot-grid{grid-template-columns:1fr}
  .hero-sub{font-size:15.5px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand:#FF5A2B;
  --brand-dk:#E4441A;
  --deep:#0E3B32;
  --lime:#DFFF4F;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --ink:#14161A;
  --muted:#5A6169;
  --line:#E4E2DB;
  --r-card:16px;
  --r-btn:12px;
  --r-img:20px;
  --sh-1:0 1px 2px rgba(20,22,26,.05);
  --sh-2:0 16px 40px -22px rgba(20,22,26,.25);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.num{font-variant-numeric:tabular-nums;letter-spacing:.04em}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.wrap{padding-left:24px;padding-right:24px}}
@media(min-width:1024px){.wrap{padding-left:32px;padding-right:32px}}

.section{padding:64px 0}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1024px){.section{padding:104px 0}}
.section-sm{padding:48px 0}
@media(min-width:768px){.section-sm{padding:72px 0}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 22px -18px rgba(20,22,26,.4)}
.head-main{display:flex;align-items:center;gap:14px;padding-top:16px;padding-bottom:14px;transition:padding .2s var(--ease)}
.site-header.is-stuck .head-main{padding-top:9px;padding-bottom:9px}
.brand{display:inline-flex;align-items:baseline;font-size:clamp(1.05rem,2.2vw,1.3rem);font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand .c1{color:var(--brand)}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 14px;min-width:220px;transition:border-color .16s var(--ease),box-shadow .16s var(--ease)}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:#9AA1A8}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.12)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);padding:11px 18px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);min-height:44px}
.btn i{transition:transform .16s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn:hover i{transform:translateX(4px)}
.btn:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dk);border-color:var(--brand-dk);box-shadow:0 14px 28px -18px rgba(255,90,43,.95)}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-light{background:transparent;border:1.5px solid rgba(246,245,241,.7);color:#F6F5F1}
.btn-ghost-light:hover{background:#F6F5F1;color:var(--deep);border-color:#F6F5F1}
.btn-lime{background:var(--lime);border-color:var(--lime);color:var(--deep)}
.btn-lime:hover{background:#cbf53c;border-color:#cbf53c}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--card);align-items:center;justify-content:center;font-size:16px}
.hamburger:hover{border-color:var(--brand);color:var(--brand)}
@media(max-width:1023px){
  .search-box{display:none}
  .head-cta{display:none}
  .hamburger{display:inline-flex}
}

.channel-bar{border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:2px 0}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;padding:13px 12px;font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;transition:color .16s var(--ease)}
.channel-link::after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease)}
.channel-link:hover{color:var(--ink)}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.active{color:var(--ink)}
.channel-link.active::after{transform:scaleX(1)}
.trend-line{margin-left:auto;display:flex;align-items:center;gap:8px;padding-left:18px;white-space:nowrap}
.trend-label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.pill{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;background:rgba(14,59,50,.08);color:var(--deep);font-size:12.5px;font-weight:600;transition:background .16s var(--ease),color .16s var(--ease)}
.pill:hover{background:var(--brand);color:#fff}
@media(max-width:1023px){.trend-line{margin-left:0}}

/* 抽屉 */
.scrim{position:fixed;inset:0;background:rgba(20,22,26,.45);opacity:0;visibility:hidden;transition:opacity .24s var(--ease);z-index:80}
.scrim.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:var(--card);z-index:90;transform:translateX(103%);transition:transform .28s var(--ease);padding:22px 22px 32px;overflow-y:auto}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:20px}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.drawer-title{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700;margin:18px 0 8px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:13px 2px;border-bottom:1px solid var(--line);font-size:15px;font-weight:600}
.drawer-link:hover{color:var(--brand)}
.drawer-link.active{color:var(--brand)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:18px 0 4px;font-size:13.5px;color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .now{color:var(--ink);font-weight:600}
.crumb i{font-size:10px;color:#B4B8BD}

/* ---------- Hero ---------- */
.cat-hero{position:relative;isolation:isolate;overflow:hidden;background:var(--deep)}
.cat-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;z-index:-2}
.cat-hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,16,14,.9) 0%,rgba(10,16,14,.68) 52%,rgba(10,16,14,.42) 100%);z-index:-1}
.cat-hero-inner{position:relative;padding:60px 0 66px;color:#F6F5F1}
@media(min-width:768px){.cat-hero-inner{padding:84px 0 92px}}
@media(min-width:1024px){.cat-hero-inner{padding:100px 0 108px}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(223,255,79,.16);color:var(--lime);font-size:12.5px;font-weight:700;letter-spacing:.08em}
.hero-title{font-size:clamp(2rem,5vw,3.4rem);color:#fff;margin-top:20px}
.hero-sub{margin-top:16px;font-size:clamp(1rem,1.7vw,1.2rem);color:rgba(246,245,241,.92);max-width:660px;font-weight:500}
.hero-note{margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(246,245,241,.7);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- 筛选 ---------- */
.filter-row{display:flex;gap:10px;overflow-x:auto;padding:4px 0 8px;scrollbar-width:none}
.filter-row::-webkit-scrollbar{display:none}
.filter-pill{padding:10px 17px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--muted);font-size:14px;font-weight:600;white-space:nowrap;transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease)}
.filter-pill:hover{border-color:var(--brand);color:var(--brand)}
.filter-pill.active{background:var(--deep);border-color:var(--deep);color:#fff}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:30px}
.sec-title{font-size:clamp(1.5rem,3vw,2.15rem)}
.sec-sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}
.sec-more{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:700;color:var(--brand);white-space:nowrap}
.sec-more i{transition:transform .16s var(--ease)}
.sec-more:hover i{transform:translateX(4px)}

/* ---------- 双列大图卡片 ---------- */
.grid-2{display:grid;gap:28px;grid-template-columns:1fr}
@media(min-width:768px){.grid-2{grid-template-columns:repeat(2,1fr)}}
.big-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.big-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand)}
.thumb{position:relative;aspect-ratio:16/10;background:#E9E7E0;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.big-card:hover .thumb img{transform:scale(1.03)}
.badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;background:rgba(14,59,50,.12);color:var(--deep);font-size:12.5px;font-weight:700;letter-spacing:.02em}
.badge-flat{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--deep)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:1.22rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{color:var(--muted);font-size:15px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.card-meta .go{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-weight:700;font-size:13.5px}
.card-meta .go i{transition:transform .16s var(--ease)}
.big-card:hover .go i{transform:translateX(4px)}
.empty-note{display:none;padding:28px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);color:var(--muted);text-align:center;font-size:14.5px}
.empty-note.show{display:block}

/* ---------- 深色路径条 ---------- */
.band{background:var(--deep);color:#F6F5F1;padding:56px 0}
@media(min-width:768px){.band{padding:72px 0}}
.band-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:1024px){.band-grid{grid-template-columns:1.05fr 1fr;gap:56px;align-items:start}}
.band-title{font-size:clamp(1.5rem,3vw,2.05rem);color:#fff}
.band-sub{margin-top:12px;color:rgba(246,245,241,.72);font-size:15px;max-width:520px}
.progress{position:relative;height:8px;border-radius:999px;background:rgba(255,255,255,.15);margin-top:28px;overflow:visible}
.progress .fill{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--brand);border-radius:999px;transition:width .9s var(--ease)}
.progress .tip{position:absolute;top:0;bottom:0;width:14px;left:0;border-radius:999px;background:var(--lime);transition:left .9s var(--ease)}
.progress-meta{display:flex;justify-content:space-between;gap:12px;margin-top:12px;font-size:13px;color:rgba(246,245,241,.6)}
.steps{display:grid;gap:22px}
.step{display:flex;gap:16px;align-items:flex-start;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.12)}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-no{font-size:1.75rem;font-weight:800;line-height:1;color:var(--lime);letter-spacing:.04em;font-variant-numeric:tabular-nums}
.step h3{font-size:1.05rem;color:#fff}
.step p{margin-top:6px;font-size:14.5px;line-height:1.75;color:rgba(246,245,241,.72)}

/* ---------- 栏目速览卡 ---------- */
.grid-3{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.benefit{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.benefit:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand)}
.benefit .ico{width:46px;height:46px;border-radius:12px;background:rgba(255,90,43,.1);color:var(--brand);display:grid;place-items:center;font-size:18px}
.benefit h3{margin-top:18px;font-size:1.15rem}
.benefit p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.75}
.corner{position:absolute;top:20px;right:20px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:color .16s var(--ease)}
.faq-q:hover{color:var(--brand)}
.faq-q .pm{flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;color:var(--brand);font-size:14px;transition:transform .22s var(--ease)}
.faq-item.open .pm{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{margin:0 0 20px;color:var(--muted);font-size:15px;line-height:1.78;max-width:860px}

/* ---------- CTA ---------- */
.cta-band{background:var(--card);border:1px solid var(--line);border-radius:var(--r-img);padding:32px;box-shadow:var(--sh-1);display:grid;gap:24px;align-items:center}
@media(min-width:900px){.cta-band{grid-template-columns:1.6fr auto;padding:46px 48px;gap:40px}}
.cta-band h2{font-size:clamp(1.45rem,2.8vw,2rem)}
.cta-band p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#EDF2EE;padding:56px 0 28px}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.foot-brand{font-size:1.15rem;font-weight:800;color:#fff;margin-bottom:12px}
.foot-brand .c1{color:var(--brand)}
.foot-desc{color:rgba(237,242,238,.72);font-size:14.5px;line-height:1.8;max-width:360px}
.foot-title{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--lime);font-weight:700;margin-bottom:14px}
.foot-link{display:block;padding:6px 0;font-size:14.5px;color:rgba(237,242,238,.8);transition:color .16s var(--ease),transform .16s var(--ease)}
.foot-link:hover{color:#fff;transform:translateX(3px)}
.foot-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(237,242,238,.62)}
.to-top{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;font-size:13px;color:#EDF2EE;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);transition:background .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease)}
.to-top:hover{background:var(--brand);border-color:var(--brand);transform:translateY(-1px)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}
@media(max-width:520px){
  .card-body{padding:18px}
  .cta-band{padding:26px}
  .benefit{padding:20px}
  .hero-actions .btn{flex:1 1 100%}
}

/* roulang page: category4 */
:root{
  --brand:#FF5A2B;
  --brand-soft:rgba(255,90,43,.10);
  --deep:#0E3B32;
  --lime:#DFFF4F;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --ink:#14161A;
  --muted:#5A6169;
  --line:#E4E2DB;
  --r-card:16px;
  --r-btn:12px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.05);
  --sh-2:0 16px 40px -22px rgba(20,22,26,.25);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.01em;font-weight:800}
h3{font-size:1.3rem}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding-inline:20px}
@media(min-width:768px){.wrap{padding-inline:24px}}
@media(min-width:1024px){.wrap{padding-inline:32px}}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.96);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px -22px rgba(20,22,26,.5)}
.brand-bar{padding:14px 0;transition:padding .2s var(--ease)}
.site-header.is-scrolled .brand-bar{padding:8px 0}
.brand-inner{display:flex;align-items:center;gap:18px}
.logo{font-size:20px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo .c1{color:var(--brand)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 14px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{border:0;outline:none;background:transparent;width:170px;font-size:14px}
.search-box input::placeholder{color:#9aa0a6}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

.channel-bar{border-top:1px solid var(--line);background:rgba(246,245,241,.9)}
.channel-inner{display:flex;align-items:center;gap:22px;padding:2px 0;overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  font-size:14.5px;font-weight:500;color:var(--muted);white-space:nowrap;
  scroll-snap-align:start;transition:color .18s var(--ease);
}
.channel-link::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.channel-link:hover{color:var(--ink)}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.active{color:var(--ink);font-weight:700}
.channel-link.active::after{transform:scaleX(1)}
.trend-line{margin-left:auto;display:flex;align-items:center;gap:8px;padding-left:12px}
.trend-label{font-size:12px;letter-spacing:.08em;color:var(--muted);white-space:nowrap}
.pill{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:12.5px;color:var(--muted);white-space:nowrap;
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.pill:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn i{transition:transform .18s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(255,90,43,.85)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand)}
.btn-lime{background:var(--lime);color:var(--deep)}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(223,255,79,.7)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.5;pointer-events:none}

/* ---------- 首屏横幅 ---------- */
.topic-hero{position:relative;overflow:hidden;color:#fff}
.topic-hero-media{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;transform:scale(1.02)}
.topic-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,22,26,.78) 0%,rgba(20,22,26,.52) 60%,rgba(20,22,26,.72) 100%)}
.topic-hero-inner{position:relative;z-index:2;padding:72px 0 64px;max-width:880px}
@media(min-width:768px){.topic-hero-inner{padding:96px 0 88px}}
@media(min-width:1024px){.topic-hero-inner{padding:112px 0 104px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(223,255,79,.16);border:1px solid rgba(223,255,79,.45);
  color:var(--lime);font-size:12.5px;letter-spacing:.08em;font-weight:600;
}
.topic-hero h1{margin-top:20px;font-size:clamp(2rem,5vw,4rem);font-weight:800;letter-spacing:-.015em;max-width:14ch}
.topic-hero .lede{margin-top:18px;font-size:clamp(15px,1.5vw,17px);line-height:1.8;color:rgba(255,255,255,.86);max-width:52ch}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:rgba(255,255,255,.72)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--lime);font-size:12px}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1024px){.section{padding:112px 0}}
.sec-head{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;margin-bottom:36px}
.kicker{display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--brand)}
.sec-title{margin-top:10px;font-size:clamp(1.5rem,3vw,2.25rem)}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.75;max-width:60ch}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--deep);border-bottom:1.5px solid var(--line);padding-bottom:4px;transition:color .18s var(--ease),border-color .18s var(--ease)}
.link-more i{transition:transform .18s var(--ease)}
.link-more:hover{color:var(--brand);border-color:var(--brand)}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 三段式图文交错 ---------- */
.feature-row{display:grid;gap:28px;align-items:center;padding:44px 0;border-top:1px solid var(--line)}
.feature-row:first-of-type{border-top:0;padding-top:0}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.feature-badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(14,59,50,.12);color:var(--deep);font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.feature-title{margin-top:16px;font-size:clamp(1.35rem,2.4vw,1.85rem);max-width:22ch}
.feature-text{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:56ch}
.spec-list{margin-top:20px;display:grid;gap:12px}
.spec-list li{display:flex;gap:12px;font-size:15px;color:var(--ink);line-height:1.7}
.spec-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--brand)}
.stat-row{margin-top:26px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;border-top:1px solid var(--line);padding-top:20px}
.stat b{display:block;font-size:clamp(1.4rem,3vw,1.9rem);font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--muted)}
@media(min-width:1024px){
  .feature-row{grid-template-columns:1.05fr .95fr;gap:56px;padding:56px 0}
  .feature-row.reverse .feature-media{order:2}
  .feature-row.reverse .feature-body{order:1}
}

/* ---------- 流程 ---------- */
.flow{display:grid;gap:22px;counter-reset:step}
@media(min-width:768px){.flow{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.flow{grid-template-columns:repeat(4,1fr);gap:24px}}
.flow-item{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.flow-item:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-2)}
.flow-num{font-size:2.2rem;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1}
.flow-title{margin-top:14px;font-size:1.05rem;font-weight:700}
.flow-text{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.75}
.flow-item::after{content:"";position:absolute;left:24px;right:24px;top:0;height:2px;background:linear-gradient(90deg,var(--brand),rgba(255,90,43,0));border-radius:2px}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;gap:24px}
@media(min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);gap:28px}}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-2)}
.card-media{overflow:hidden;background:#EDEBE4}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);background:rgba(14,59,50,.12);color:var(--deep);font-size:12px;font-weight:600;letter-spacing:.06em;align-self:flex-start}
.card-title{margin-top:14px;font-size:1.08rem;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--deep)}
.card-foot .go i{transition:transform .18s var(--ease)}
.card:hover .card-foot .go{color:var(--brand)}
.card:hover .card-foot .go i{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 2px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);min-height:44px;transition:color .18s var(--ease)}
.faq-q:hover{color:var(--brand)}
.faq-q .icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--deep);transition:transform .25s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.faq-item.open .faq-q .icon{transform:rotate(180deg);border-color:var(--brand);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 2px 20px;font-size:15px;line-height:1.75;color:var(--muted);max-width:70ch}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--deep);color:#F6F5F1;border-radius:24px;padding:44px 26px;
  display:grid;gap:26px;align-items:center;
}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr auto;padding:56px 48px;gap:40px}}
.cta-band h2{font-size:clamp(1.5rem,2.8vw,2.1rem);color:#fff;max-width:24ch}
.cta-band p{margin-top:12px;color:rgba(246,245,241,.75);font-size:15px;line-height:1.8;max-width:56ch}
.cta-note{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;color:rgba(246,245,241,.66)}
.cta-note i{color:var(--lime);margin-right:6px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#F6F5F1;padding:64px 0 26px;margin-top:16px}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.foot-brand{font-size:20px;font-weight:800;letter-spacing:-.01em;margin-bottom:14px}
.foot-brand .c1{color:var(--brand)}
.foot-desc{font-size:14.5px;line-height:1.85;color:rgba(246,245,241,.7);max-width:40ch}
.foot-title{font-size:12.5px;letter-spacing:.08em;font-weight:700;color:rgba(246,245,241,.55);margin-bottom:14px}
.foot-link{display:block;padding:6px 0;font-size:14.5px;color:rgba(246,245,241,.85);transition:color .18s var(--ease)}
.foot-link:hover{color:var(--lime)}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;font-size:13.5px;color:rgba(246,245,241,.6)}
.to-top{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.25);color:#F6F5F1;font-size:13.5px;transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease)}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(20,22,26,.45);opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:70}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,350px);background:#fff;z-index:80;
  padding:22px;overflow-y:auto;transform:translateX(100%);transition:transform .3s var(--ease);
  box-shadow:-18px 0 40px -30px rgba(20,22,26,.6);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-search{margin-top:18px;width:100%}
.drawer-search input{width:100%}
.drawer-title{margin-top:22px;font-size:12.5px;letter-spacing:.08em;font-weight:700;color:var(--muted)}
.drawer-link{display:flex;align-items:center;min-height:46px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink)}
.drawer-link:hover{color:var(--brand)}
.drawer-link.active{color:var(--brand);font-weight:700}
.drawer-cta{margin-top:22px;width:100%}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

@media(max-width:1023px){
  .search-box{display:none}
  .brand-actions .btn-primary{display:none}
  .nav-toggle{display:flex}
  .trend-line{margin-left:0}
}
@media(max-width:520px){
  .logo{font-size:17px}
  .stat-row{grid-template-columns:repeat(3,1fr);gap:10px}
  .card-body{padding:18px}
}

/* roulang page: category5 */
:root{
  --brand:#FF5A2B;
  --deep:#0E3B32;
  --lime:#DFFF4F;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --ink:#14161A;
  --muted:#5A6169;
  --line:#E4E2DB;
  --r-card:16px;
  --r-btn:12px;
  --r-img:20px;
  --shadow-1:0 1px 2px rgba(20,22,26,.05);
  --shadow-2:0 16px 40px -22px rgba(20,22,26,.25);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
input{font:inherit}
h1,h2,h3{margin:0;letter-spacing:-.01em;line-height:1.15;font-weight:800}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-compact{box-shadow:0 10px 26px -22px rgba(20,22,26,.45)}
.brand-row{
  display:flex;align-items:center;gap:18px;
  height:74px;transition:height .22s var(--ease);
}
.site-header.is-compact .brand-row{height:60px}
.brand{font-size:20px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;line-height:1}
.brand .c1{color:var(--brand)}
.search{
  flex:1;max-width:360px;display:flex;align-items:center;gap:10px;
  height:42px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,43,.12)}
.search i{color:var(--muted);font-size:13px}
.search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);min-width:0}
.search input::placeholder{color:#9AA0A6}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn .arw{transition:transform .18s var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(255,90,43,.75)}
.btn-primary:hover .arw{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn-lime{background:var(--lime);color:var(--deep)}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 14px 28px -18px rgba(223,255,79,.8)}
.btn-lime:hover .arw{transform:translateX(4px)}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand)}
.channel-bar{border-top:1px solid var(--line)}
.channel-inner{
  display:flex;align-items:center;gap:6px;height:52px;
  overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity;
  transition:height .22s var(--ease);
}
.site-header.is-compact .channel-inner{height:44px}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;padding:8px 12px;border-radius:8px;font-size:15px;color:var(--muted);
  white-space:nowrap;scroll-snap-align:start;
  transition:color .16s var(--ease),background .16s var(--ease);
}
.channel-link:hover{color:var(--ink);background:#fff}
.channel-link.active{color:var(--ink);font-weight:700}
.channel-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--brand);
}
.trend-line{margin-left:auto;display:flex;align-items:center;gap:8px;padding-left:18px}
.trend-label{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600}
.pill{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  font-size:13px;white-space:nowrap;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.pill:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,26,.42);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;
  background:#fff;padding:22px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s var(--ease);
  box-shadow:-24px 0 44px -32px rgba(0,0,0,.5);
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer .search{max-width:none;margin-bottom:8px}
.drawer-title{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600;margin:20px 0 4px}
.drawer-link{
  display:block;padding:12px 2px;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.drawer-link:hover{color:var(--brand);padding-left:6px}
.drawer-link.active{color:var(--brand);font-weight:700}
.drawer-cta{margin-top:22px;width:100%}

/* ---------- Hero ---------- */
.hero{padding:56px 0 40px}
@media(min-width:1024px){.hero{padding:88px 0 56px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.08fr .92fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(14,59,50,.09);color:var(--deep);
  font-size:12px;font-weight:700;letter-spacing:.08em;
}
.hero h1{font-size:clamp(2rem,5vw,3.3rem);margin:20px 0 16px}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-figure{margin:0}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  background:var(--line);box-shadow:var(--shadow-1);
}
.hero-figure figcaption{margin-top:10px;font-size:13px;color:var(--muted)}

/* ---------- 速览条 ---------- */
.stat-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr)}
@media(min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat{padding:22px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
@media(min-width:768px){.stat{border-bottom:0}}
.stat:last-child{border-right:0}
.stat-num{
  font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.stat-label{font-size:13px;color:var(--muted)}

/* ---------- 区块通用 ---------- */
.sec{padding:64px 0}
@media(min-width:1024px){.sec{padding:88px 0}}
.sec-head{max-width:720px;margin-bottom:32px}
.sec-title{font-size:clamp(1.5rem,3vw,2.1rem)}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- 问答手风琴 ---------- */
.qa-list{max-width:900px}
.qa-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.qa-item:hover{border-color:#CFCCC2}
.qa-item[open]{border-color:var(--brand);box-shadow:var(--shadow-1)}
.qa-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 20px;font-size:16px;font-weight:600;cursor:pointer;
}
.qa-item summary::-webkit-details-marker{display:none}
.qa-item summary:hover{color:var(--brand)}
.qa-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,90,43,.1);color:var(--brand);font-size:12px;
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.qa-item[open] .qa-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.qa-body{padding:0 20px 18px;font-size:15px;line-height:1.75;color:var(--muted);margin:0}
.qa-body strong{color:var(--ink);font-weight:600}

/* ---------- 卡片区 ---------- */
.t-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.t-grid{grid-template-columns:repeat(2,1fr)}}
.t-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.t-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.t-tag{
  display:inline-block;padding:4px 10px;border-radius:999px;
  background:rgba(14,59,50,.1);color:var(--deep);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.t-card h3{margin:14px 0 8px;font-size:1.25rem}
.t-card p{margin:0;font-size:15px;line-height:1.7;color:var(--muted)}

/* ---------- 术语区 ---------- */
.term-wrap{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:900px){.term-wrap{grid-template-columns:1.45fr .55fr;gap:48px}}
.term-list{margin:0;border-top:1px solid var(--line)}
.term-item{
  display:grid;grid-template-columns:118px 1fr;gap:18px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
@media(max-width:520px){.term-item{grid-template-columns:1fr;gap:4px}}
.term-item dt{font-weight:700;font-size:15px}
.term-item dd{margin:0;font-size:15px;color:var(--muted);line-height:1.75}
.term-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px}
.term-aside img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;background:var(--line)}
.term-aside h3{margin:16px 0 8px;font-size:1.1rem}
.term-aside p{font-size:14px;color:var(--muted);line-height:1.7}
.term-aside a{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand)}
.term-aside a:hover .arw{transform:translateX(4px)}
.term-aside a .arw{transition:transform .18s var(--ease)}

/* ---------- CTA ---------- */
.cta-zone{padding:48px 0 72px}
.cta-box{
  background:var(--deep);color:#F6F5F1;border-radius:24px;
  padding:36px 26px;display:grid;gap:26px;align-items:center;
}
@media(min-width:900px){.cta-box{grid-template-columns:1fr auto;padding:52px 56px}}
.cta-box h2{color:#fff;font-size:clamp(1.5rem,3vw,2.05rem);margin-bottom:12px}
.cta-box p{color:rgba(246,245,241,.76);font-size:15px;max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#F6F5F1;padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.foot-brand{font-size:19px;font-weight:800;margin-bottom:12px}
.foot-brand .c1{color:var(--brand)}
.foot-desc{margin:0;max-width:360px;font-size:14px;line-height:1.8;color:rgba(246,245,241,.7)}
.foot-title{font-size:12px;font-weight:700;letter-spacing:.08em;color:rgba(246,245,241,.6);margin-bottom:12px}
.foot-link{display:block;padding:6px 0;font-size:14px;color:rgba(246,245,241,.85);transition:color .16s var(--ease),transform .16s var(--ease)}
.foot-link:hover{color:var(--lime);transform:translateX(3px)}
.foot-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(246,245,241,.15);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(246,245,241,.62);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;background:transparent;
  border:1px solid rgba(246,245,241,.3);color:#F6F5F1;font-size:13px;
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式头部 ---------- */
@media(max-width:1023px){
  .trend-line{display:none}
}
@media(max-width:767px){
  .brand-row .search{display:none}
  .header-actions .btn-primary{display:none}
  .menu-btn{display:inline-flex}
  .channel-bar{display:none}
  .hero{padding:40px 0 32px}
  .hero-sub{font-size:16px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}