/* roulang page: index */
:root{
    --brand:#17C3A2;
    --brand-dark:#12A98C;
    --brand-soft:rgba(23,195,162,.10);
    --violet:#7C5CFF;
    --violet-soft:rgba(124,92,255,.10);
    --amber:#FF8A3D;
    --amber-soft:rgba(255,138,61,.12);
    --ink:#0D1411;
    --ink-2:#3A473F;
    --muted:#6C7A72;
    --bg:#F6F7F3;
    --card:#FFFFFF;
    --soft:#EEF3EE;
    --line:#E3E8E2;
    --r-card:18px;
    --r-btn:12px;
    --r-panel:26px;
    --sh-1:0 1px 2px rgba(16,20,24,.05);
    --sh-2:0 10px 30px rgba(16,20,24,.06);
    --sh-3:0 24px 60px rgba(16,20,24,.10);
    --ease:200ms cubic-bezier(.4,0,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--bg);
    color:var(--ink);
    font-size:17px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
  button,input{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em;}
  p{margin:0 0 1.1em;}
  p:last-child{margin-bottom:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(23,195,162,.28);border-radius:6px;}
  ::selection{background:rgba(23,195,162,.22);}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--soft);}
  ::-webkit-scrollbar-thumb{background:#C9D4CB;border-radius:999px;border:2px solid var(--soft);}
  ::-webkit-scrollbar-thumb:hover{background:#AEBBAF;}

  .container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(246,247,243,.92);
    backdrop-filter:saturate(160%) blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav-bar{display:flex;align-items:center;gap:24px;height:72px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;
    background:linear-gradient(140deg,var(--brand) 0%,#0FA88B 55%,var(--violet) 130%);
    display:flex;align-items:center;justify-content:center;
    color:#062018;font-weight:800;font-size:15px;letter-spacing:-.5px;
    box-shadow:0 6px 16px rgba(23,195,162,.28);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text b{font-size:15.5px;font-weight:800;letter-spacing:.2px;}
  .brand-text span{font-size:11.5px;color:var(--muted);letter-spacing:2.4px;}
  .nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
  .nav-link{
    font-size:15px;color:var(--ink-2);padding:8px 14px;border-radius:10px;
    border:1px solid transparent;
  }
  .nav-link:hover{color:var(--ink);background:var(--soft);}
  .nav-link.active{
    color:#07352A;background:var(--brand-soft);border-color:rgba(23,195,162,.32);
    font-weight:600;
  }
  .nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .cmd-search{
    display:flex;align-items:center;gap:8px;
    width:290px;height:42px;padding:0 12px;
    background:#fff;border:1px solid var(--line);border-radius:12px;
    box-shadow:var(--sh-1);transition:border-color var(--ease),box-shadow var(--ease);
  }
  .cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,195,162,.16);}
  .cmd-search input{border:0;outline:0;background:transparent;width:100%;font-size:14.5px;}
  .cmd-search input::placeholder{color:#9AA79E;}
  .kbd{
    font-size:11px;color:var(--muted);border:1px solid var(--line);
    border-radius:6px;padding:1px 6px;background:var(--soft);white-space:nowrap;
  }
  .icon-btn{
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
    display:flex;align-items:center;justify-content:center;color:var(--ink-2);
    cursor:pointer;box-shadow:var(--sh-1);transition:all var(--ease);
  }
  .icon-btn:hover{border-color:rgba(23,195,162,.45);color:var(--brand-dark);transform:translateY(-1px);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:all var(--ease);white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#03322A;box-shadow:0 6px 16px rgba(23,195,162,.22);}
  .btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(23,195,162,.30);}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
  .btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:#07352A;}
  .btn-violet{background:var(--violet);color:#fff;box-shadow:0 6px 16px rgba(124,92,255,.24);}
  .btn-violet:hover{background:#6A49F2;transform:translateY(-1px);}
  .btn:active{transform:translateY(0);}
  .hamburger{display:none;}

  /* ---------- drawer ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;background:rgba(13,20,17,.55);
    opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  }
  .drawer.open{opacity:1;visibility:visible;}
  .drawer-panel{
    position:absolute;top:0;right:0;width:min(88vw,360px);height:100%;
    background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;
    transform:translateX(100%);transition:transform 260ms cubic-bezier(.4,0,.2,1);
    box-shadow:var(--sh-3);overflow-y:auto;
  }
  .drawer.open .drawer-panel{transform:translateX(0);}
  .drawer-link{display:block;padding:13px 14px;border-radius:12px;font-size:16px;color:var(--ink-2);border:1px solid var(--line);}
  .drawer-link:hover{background:var(--soft);color:var(--ink);}
  .drawer-link.active{background:var(--brand-soft);border-color:rgba(23,195,162,.4);color:#063A2E;font-weight:600;}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);border-bottom:1px solid var(--line);}
  .hero-dots{
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(23,195,162,.22) 1px,transparent 1px);
    background-size:26px 26px;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
    pointer-events:none;
  }
  .hero-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:76px 0 84px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
    color:#0A4A3B;background:var(--brand-soft);border:1px solid rgba(23,195,162,.3);
    padding:6px 13px;border-radius:999px;margin-bottom:20px;
  }
  .eyebrow i{width:7px;height:7px;border-radius:2px;background:var(--brand);display:inline-block;}
  h1.hero-title{font-size:clamp(2.2rem,4.4vw,3.5rem);font-weight:800;letter-spacing:-.02em;}
  .hero-sub{margin-top:18px;font-size:18px;color:var(--ink-2);max-width:34em;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px dashed var(--line);}
  .hero-meta div b{display:block;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;}
  .hero-meta div span{font-size:13px;color:var(--muted);}
  .hero-visual{position:relative;}
  .hero-visual img{width:100%;height:420px;object-fit:cover;border-radius:26px;box-shadow:var(--sh-3);background:#DDE6DF;}
  .float-card{
    position:absolute;background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:14px 16px;box-shadow:var(--sh-3);min-width:168px;
  }
  .float-card small{display:block;font-size:12px;color:var(--muted);letter-spacing:.4px;}
  .float-card strong{font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;}
  .float-a{left:-18px;bottom:34px;}
  .float-b{right:-10px;top:28px;}
  .float-tag{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
    background:var(--amber-soft);color:#8A4413;border-radius:999px;padding:3px 9px;margin-top:6px;
  }

  /* ---------- sections ---------- */
  .section{padding:88px 0;}
  .section-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-dark{background:var(--ink);color:#E7F0EA;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
  .section-head h2{font-size:clamp(1.6rem,2.6vw,2.15rem);}
  .section-head p{margin:10px 0 0;color:var(--muted);font-size:15.5px;max-width:46em;}
  .section-dark .section-head p{color:#9FB3A8;}
  .link-more{font-size:15px;font-weight:600;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
  .link-more:hover{color:#0B7A63;gap:10px;}

  /* ---------- asym cards ---------- */
  .content-mix{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;}
  .mix-col{display:grid;gap:24px;align-content:start;}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(23,195,162,.35);}
  .card-media{position:relative;overflow:hidden;background:#DDE6DF;}
  .card-media img{width:100%;object-fit:cover;transition:transform 240ms cubic-bezier(.4,0,.2,1);}
  .card:hover .card-media img{transform:scale(1.03);}
  .card-body{padding:22px 24px 24px;}
  .card-body h3{font-size:19px;font-weight:700;}
  .card:hover .card-body h3{color:var(--brand-dark);}
  .card-body p{color:var(--muted);font-size:15px;margin-top:10px;}
  .card-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;font-size:13px;color:var(--muted);}
  .badge{
    display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;
    padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:#0A4A3B;
    border:1px solid rgba(23,195,162,.28);
  }
  .badge-violet{background:var(--violet-soft);color:#4530B8;border-color:rgba(124,92,255,.28);}
  .badge-amber{background:var(--amber-soft);color:#8A4413;border-color:rgba(255,138,61,.3);}
  .badge-plain{background:var(--soft);color:var(--ink-2);border-color:var(--line);}
  .big-media img{height:320px;}
  .small-media img{height:170px;}
  .clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

  /* ---------- story ---------- */
  .story{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start;}
  .story h2{font-size:clamp(1.6rem,2.6vw,2.2rem);}
  .story-img{margin-top:26px;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:#DDE6DF;}
  .story-img img{width:100%;height:210px;object-fit:cover;}
  .story-copy p{color:var(--ink-2);font-size:16.5px;}
  .story-list{display:grid;gap:14px;margin-top:26px;}
  .story-list li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--sh-1);}
  .story-list .dot{width:26px;height:26px;border-radius:9px;background:var(--brand-soft);color:#0A4A3B;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;flex-shrink:0;}
  .story-list b{display:block;font-size:15.5px;}
  .story-list span{font-size:14px;color:var(--muted);}

  /* ---------- post grid ---------- */
  .post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .post-card .card-media img{height:186px;width:100%;object-fit:cover;}
  .empty-state{
    border:1px dashed #CBD6CD;background:#fff;border-radius:18px;
    padding:46px 24px;text-align:center;color:var(--muted);
  }
  .empty-state b{display:block;color:var(--ink);font-size:17px;margin-bottom:6px;}

  /* ---------- trust ---------- */
  .stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border-radius:20px;overflow:hidden;}
  .stat-bar div{background:var(--ink);padding:26px 24px;}
  .stat-bar b{display:block;font-size:30px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;}
  .stat-bar span{font-size:13.5px;color:#9FB3A8;}
  .quote-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px;}
  .quote{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:22px;}
  .quote p{font-size:15px;color:#D6E5DC;}
  .quote footer{margin-top:14px;font-size:13px;color:#8FA69A;}

  /* ---------- faq ---------- */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);}
  .faq-item.open{border-color:rgba(23,195,162,.45);box-shadow:var(--sh-2);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:transparent;border:0;text-align:left;cursor:pointer;
    padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--ink);
  }
  .faq-q:hover{color:var(--brand-dark);}
  .faq-plus{
    width:24px;height:24px;border-radius:8px;background:var(--soft);color:var(--ink-2);
    display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex-shrink:0;
    transition:transform var(--ease),background-color var(--ease),color var(--ease);
  }
  .faq-item.open .faq-plus{background:var(--brand);color:#fff;transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease;}
  .faq-a p{padding:0 20px 20px;font-size:15.5px;line-height:1.8;color:var(--muted);}

  /* ---------- cta ---------- */
  .cta-panel{
    background:linear-gradient(135deg,#0D1411 0%,#123027 58%,#1B4A3C 100%);
    border-radius:28px;padding:46px;color:#E9F3ED;
    display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;
    box-shadow:var(--sh-3);position:relative;overflow:hidden;
  }
  .cta-panel::after{
    content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(23,195,162,.30),transparent 68%);
  }
  .cta-panel h2{font-size:clamp(1.5rem,2.4vw,2rem);color:#fff;position:relative;}
  .cta-panel p{color:#A9C0B4;font-size:15.5px;margin-top:12px;position:relative;}
  .form-label{display:block;font-size:13.5px;color:#B9CDC2;margin-bottom:8px;}
  .form-input{
    width:100%;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);padding:0 14px;color:#fff;font-size:15px;outline:0;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .form-input::placeholder{color:#7E938A;}
  .form-input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,195,162,.20);}
  .form-input.error{border-color:var(--amber);box-shadow:0 0 0 4px rgba(255,138,61,.18);}
  .form-row{position:relative;z-index:1;}
  .check-line{display:flex;align-items:flex-start;gap:10px;margin-top:14px;font-size:13.5px;color:#A9C0B4;}
  .check-line input{width:17px;height:17px;margin-top:3px;accent-color:var(--brand);}
  .form-msg{margin-top:12px;font-size:14px;display:none;}
  .form-msg.ok{display:block;color:#5FE3C4;}
  .form-msg.err{display:block;color:#FFB27A;}

  /* ---------- footer ---------- */
  .site-footer{background:#0D1411;color:#A9C0B4;border-top:1px solid #1C2A24;padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
  .site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
  .footer-links li{margin-bottom:10px;font-size:14.5px;}
  .footer-links a:hover{color:var(--brand);}
  .footer-brand .brand-text b{color:#fff;}
  .footer-brand .brand-text span{color:#7E938A;}
  .footer-divider{border:0;height:1px;background:#1C2A24;margin:38px 0 22px;}
  .footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:#7E938A;}
  .kbd-key{display:inline-block;font-size:12.5px;color:#C7D8CE;border:1px solid #24382F;border-radius:7px;padding:2px 8px;background:#132019;}

  @media (max-width:1100px){
    .cmd-search{width:210px;}
    .float-a{left:6px;}
    .float-b{right:6px;}
  }
  @media (max-width:1024px){
    .nav-links{display:none;}
    .cmd-search{display:none;}
    .hamburger{display:flex;}
    .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 64px;}
    .hero-visual img{height:320px;}
    .content-mix{grid-template-columns:1fr;}
    .story{grid-template-columns:1fr;gap:34px;}
    .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .quote-row{grid-template-columns:1fr;}
    .stat-bar{grid-template-columns:repeat(2,1fr);}
    .cta-panel{grid-template-columns:1fr;padding:34px;gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .section{padding:68px 0;}
  }
  @media (max-width:768px){
    body{font-size:16px;}
    .faq-grid{grid-template-columns:1fr;}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
    .big-media img{height:240px;}
    .float-b{display:none;}
  }
  @media (max-width:520px){
    .post-grid{grid-template-columns:1fr;}
    .stat-bar{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .hero-meta{gap:18px;}
    .btn{width:100%;}
    .hero-cta{gap:10px;}
    .cta-panel{padding:26px;}
    .float-a{left:8px;bottom:14px;}
  }

/* roulang page: article */
:root{
    --brand:#17C3A2;
    --brand-dark:#12A98C;
    --brand-deep:#0E8E75;
    --violet:#7C5CFF;
    --amber:#FF8A3D;
    --ink:#0D1411;
    --text:#1E2A24;
    --muted:#5A6B62;
    --bg:#F6F7F3;
    --card:#FFFFFF;
    --soft:#EEF3EE;
    --border:#E3E8E2;
    --r-sm:12px;
    --r-md:16px;
    --r-lg:20px;
    --r-xl:28px;
    --sh-1:0 1px 2px rgba(16,20,24,.05);
    --sh-2:0 10px 30px rgba(16,20,24,.06);
    --sh-3:0 24px 60px rgba(16,20,24,.10);
    --max:1220px;
  }
  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button,input,select,textarea{ font:inherit; color:inherit; }
  h1,h2,h3,h4{ margin:0; line-height:1.3; font-weight:700; color:var(--ink); letter-spacing:.2px; }
  p{ margin:0; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  .num{ font-variant-numeric:tabular-nums; }

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

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:rgba(246,247,243,.94);
    backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid var(--border);
  }
  .header-inner{ display:flex; align-items:center; gap:22px; height:72px; }
  .brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
  .brand-mark{
    width:36px; height:36px; border-radius:11px; flex-shrink:0;
    background:linear-gradient(135deg,var(--brand),var(--violet));
    color:#04211B; font-weight:800; font-size:17px;
    display:grid; place-items:center;
    box-shadow:0 6px 16px rgba(23,195,162,.25);
  }
  .brand-name{ font-size:17px; font-weight:800; color:var(--ink); white-space:nowrap; }
  .brand-name em{ font-style:normal; color:var(--brand-deep); }

  .nav-links{ display:flex; align-items:center; gap:24px; margin-left:6px; }
  .nav-link{
    position:relative; font-size:15px; color:var(--muted);
    padding:6px 0; transition:color .2s ease;
  }
  .nav-link:hover{ color:var(--ink); }
  .nav-link.active{ color:var(--ink); font-weight:600; }
  .nav-link.active::after{
    content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px;
    border-radius:2px; background:var(--brand);
  }

  .header-right{ margin-left:auto; display:flex; align-items:center; gap:12px; }
  .cmd-search{
    display:flex; align-items:center; gap:8px;
    width:300px; height:40px; padding:0 10px 0 14px;
    background:#fff; border:1px solid var(--border); border-radius:999px;
    transition:border-color .2s, box-shadow .2s;
  }
  .cmd-search i{ color:var(--muted); font-size:13px; }
  .cmd-search input{ flex:1; min-width:0; border:0; outline:0; background:transparent; font-size:14px; }
  .cmd-search input::placeholder{ color:#9AA8A1; }
  .cmd-search kbd{
    font-size:11px; padding:2px 6px; border:1px solid var(--border);
    border-radius:6px; color:var(--muted); background:var(--bg);
  }
  .cmd-search:focus-within{ border-color:var(--brand); box-shadow:0 0 0 4px rgba(23,195,162,.16); }
  .nav-quick{
    display:inline-flex; align-items:center; gap:7px;
    font-size:14px; color:var(--muted); padding:8px 10px; border-radius:10px;
    transition:color .2s, background .2s;
  }
  .nav-quick:hover{ color:var(--brand-deep); background:rgba(23,195,162,.08); }

  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:46px; padding:0 22px; border-radius:12px; cursor:pointer;
    font-size:15px; font-weight:600; border:1px solid transparent;
    transition:all .2s ease; white-space:nowrap;
  }
  .btn-sm{ height:38px; padding:0 16px; font-size:14px; border-radius:11px; }
  .btn-primary{
    background:var(--brand); color:#052722;
    box-shadow:0 6px 16px rgba(23,195,162,.20);
  }
  .btn-primary:hover{ background:var(--brand-dark); color:#04211B; transform:translateY(-1px); box-shadow:0 8px 20px rgba(23,195,162,.28); }
  .btn-primary:active{ transform:translateY(0); }
  .btn-ghost{ background:transparent; border-color:var(--border); color:var(--ink); }
  .btn-ghost:hover{ border-color:var(--brand); background:rgba(23,195,162,.06); }
  a:focus-visible,button:focus-visible,input:focus-visible{ outline:2px solid rgba(23,195,162,.55); outline-offset:2px; border-radius:10px; }

  .menu-btn{
    display:none; width:40px; height:40px; border-radius:11px;
    border:1px solid var(--border); background:#fff; cursor:pointer;
    align-items:center; justify-content:center; color:var(--ink);
  }
  .menu-btn:hover{ border-color:var(--brand); }

  .drawer{ position:fixed; inset:0; z-index:90; display:none; }
  .drawer.open{ display:block; }
  .drawer-mask{ position:absolute; inset:0; background:rgba(13,20,17,.45); }
  .drawer-panel{
    position:absolute; top:0; right:0; bottom:0; width:min(88vw,360px);
    background:#fff; padding:22px; overflow-y:auto;
    box-shadow:var(--sh-3);
  }
  .drawer-panel .cmd-search{ width:100%; margin:16px 0 18px; }
  .drawer-nav{ display:flex; flex-direction:column; }
  .drawer-nav a{
    padding:14px 4px; font-size:16px; border-bottom:1px solid var(--border);
    display:flex; align-items:center; justify-content:space-between;
  }
  .drawer-nav a:hover{ color:var(--brand-deep); }
  .drawer-close{ margin-left:auto; border:0; background:transparent; font-size:20px; cursor:pointer; color:var(--muted); }

  /* ---------- 徽章 / 卡片 ---------- */
  .badge{
    display:inline-flex; align-items:center; gap:6px;
    padding:4px 11px; border-radius:999px;
    font-size:12.5px; font-weight:600; line-height:1.6;
  }
  .badge-brand{ background:rgba(23,195,162,.14); color:#0E7A63; }
  .badge-violet{ background:rgba(124,92,255,.13); color:#5A3FD6; }
  .badge-amber{ background:rgba(255,138,61,.16); color:#B85A16; }

  /* ---------- 面包屑横幅 ---------- */
  .article-banner{
    position:relative;
    padding:34px 0 96px;
    color:#E9F4EF;
    background-image:
      linear-gradient(100deg, rgba(13,20,17,.95) 0%, rgba(13,20,17,.78) 46%, rgba(13,20,17,.42) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
  }
  .article-banner::after{
    content:""; position:absolute; left:0; right:0; bottom:0; height:64px;
    background:linear-gradient(to bottom, rgba(246,247,243,0), var(--bg));
  }
  .breadcrumb{
    display:flex; align-items:center; flex-wrap:wrap; gap:8px;
    font-size:13.5px; color:rgba(233,244,239,.78);
  }
  .breadcrumb a:hover{ color:#7BE7CF; }
  .breadcrumb .sep{ opacity:.5; }
  .breadcrumb .current{ color:#fff; font-weight:600; }
  .banner-tagline{
    margin-top:16px; font-size:13px; letter-spacing:.8px;
    color:rgba(233,244,239,.72); text-transform:uppercase;
  }

  /* ---------- 文章头 ---------- */
  .article-head{ margin-top:-72px; position:relative; z-index:2; }
  .article-head-inner{
    max-width:820px;
    background:#fff; border:1px solid var(--border); border-radius:var(--r-xl);
    padding:38px 40px 34px; box-shadow:var(--sh-2);
  }
  .article-title{
    font-size:clamp(1.7rem,3.4vw,2.4rem);
    line-height:1.35; margin:16px 0 0; font-weight:800;
  }
  .article-lead{
    margin-top:16px; font-size:16.5px; color:var(--muted); line-height:1.85;
  }
  .article-meta{
    margin-top:22px; padding-top:20px; border-top:1px solid var(--border);
    display:flex; flex-wrap:wrap; gap:10px 24px;
    font-size:13.5px; color:var(--muted);
  }
  .article-meta span{ display:inline-flex; align-items:center; gap:7px; }
  .article-meta i{ color:var(--brand-deep); font-size:13px; }

  /* ---------- 正文布局 ---------- */
  .article-main{ padding:52px 0 8px; }
  .article-shell{
    display:grid; grid-template-columns:minmax(0,1fr) 268px; gap:48px;
    align-items:start;
  }
  .article-panel{
    background:#fff; border:1px solid var(--border); border-radius:var(--r-xl);
    padding:44px 46px 40px; box-shadow:var(--sh-1);
  }

  .article-body{
    font-size:17px; line-height:1.9; color:#26332D; max-width:820px;
  }
  .article-body p{ margin:0 0 1.15em; }
  .article-body h2{
    font-size:clamp(1.32rem,2.3vw,1.68rem); font-weight:700;
    margin:2em 0 .8em; padding-left:14px; position:relative;
  }
  .article-body h2::before{
    content:""; position:absolute; left:0; top:.18em; bottom:.18em; width:4px;
    border-radius:4px; background:linear-gradient(180deg,var(--brand),var(--violet));
  }
  .article-body h3{ font-size:1.22rem; font-weight:700; margin:1.6em 0 .5em; }
  .article-body h4{ font-size:1.06rem; font-weight:700; margin:1.4em 0 .4em; }
  .article-body a{ color:var(--brand-deep); border-bottom:1px solid rgba(23,195,162,.4); }
  .article-body a:hover{ color:var(--brand-dark); border-bottom-color:var(--brand-dark); }
  .article-body ul, .article-body ol{ margin:0 0 1.2em; padding-left:1.3em; }
  .article-body ul li{ list-style:disc; line-height:1.8; margin-bottom:.45em; }
  .article-body ol li{ list-style:decimal; line-height:1.8; margin-bottom:.45em; }
  .article-body ul li::marker{ color:var(--brand); }
  .article-body ol li::marker{ color:var(--brand-deep); font-weight:600; }
  .article-body blockquote{
    margin:1.5em 0; padding:.9em 1.3em;
    border-left:3px solid var(--brand);
    background:var(--soft); border-radius:0 14px 14px 0;
    color:#33443C; font-size:16.5px;
  }
  .article-body blockquote p:last-child{ margin-bottom:0; }
  .article-body img{ border-radius:14px; margin:1.6em 0; box-shadow:var(--sh-2); }
  .article-body figure{ margin:1.6em 0; }
  .article-body figcaption{ font-size:13px; color:var(--muted); text-align:center; margin-top:8px; }
  .article-body code{
    background:var(--soft); padding:2px 7px; border-radius:6px;
    font-size:.92em; color:#0E7A63;
  }
  .article-body pre{
    background:#0D1411; color:#DCEBE4; padding:18px 20px; border-radius:14px;
    overflow-x:auto; font-size:14.5px; line-height:1.75; margin:1.4em 0;
  }
  .article-body pre code{ background:transparent; color:inherit; padding:0; }
  .article-body table{
    width:100%; border-collapse:collapse; margin:1.4em 0; font-size:15.5px;
    border:1px solid var(--border); border-radius:12px; overflow:hidden;
  }
  .article-body th, .article-body td{ padding:11px 14px; border-bottom:1px solid var(--border); text-align:left; }
  .article-body th{ background:var(--soft); font-weight:700; color:var(--ink); }
  .article-body strong{ color:var(--ink); font-weight:700; }
  .article-body hr{ border:0; border-top:1px solid var(--border); margin:2em 0; }

  /* ---------- 目录 ---------- */
  .toc{
    position:sticky; top:96px;
    background:#fff; border:1px solid var(--border); border-radius:var(--r-lg);
    padding:20px 20px 18px; box-shadow:var(--sh-1);
  }
  .toc-title{
    display:flex; align-items:center; gap:8px;
    font-size:13.5px; font-weight:700; color:var(--ink);
    padding-bottom:12px; margin-bottom:10px; border-bottom:1px solid var(--border);
  }
  .toc-title i{ color:var(--brand); }
  .toc-list{ display:flex; flex-direction:column; gap:2px; max-height:52vh; overflow-y:auto; }
  .toc-link{
    display:block; font-size:14px; color:var(--muted);
    padding:7px 10px; border-radius:9px; line-height:1.55;
    transition:background .18s, color .18s;
  }
  .toc-link:hover{ background:var(--soft); color:var(--brand-deep); }
  .toc-link.is-sub{ padding-left:22px; font-size:13.4px; color:#77877F; }
  .toc-empty{ font-size:13.5px; color:#9AA8A1; padding:6px 10px; }
  .toc-note{
    margin-top:14px; padding-top:14px; border-top:1px dashed var(--border);
    font-size:12.8px; color:var(--muted); line-height:1.7;
  }

  /* ---------- 结束标记 / 空态 ---------- */
  .article-end{
    max-width:820px; margin:36px 0 0;
    display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  }
  .article-end .line{ flex:1; height:1px; background:var(--border); min-width:40px; }
  .article-end .dot{ width:8px; height:8px; border-radius:50%; background:var(--brand); }

  .empty-state{
    background:#fff; border:1px dashed var(--border); border-radius:var(--r-xl);
    padding:56px 32px; text-align:center;
  }
  .empty-state i{ font-size:34px; color:var(--amber); }
  .empty-state h2{ margin:18px 0 10px; font-size:1.4rem; }
  .empty-state p{ color:var(--muted); margin-bottom:22px; }

  /* ---------- 相关推荐 ---------- */
  .related{ padding:64px 0 8px; }
  .section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; flex-wrap:wrap; margin-bottom:26px; }
  .section-head h2{ font-size:clamp(1.4rem,2.6vw,1.9rem); }
  .section-head p{ font-size:14.5px; color:var(--muted); margin-top:8px; }
  .card-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
  .card{
    display:flex; flex-direction:column; overflow:hidden;
    background:var(--card); border:1px solid var(--border);
    border-radius:var(--r-lg); box-shadow:var(--sh-1);
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  }
  .card:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:rgba(23,195,162,.36); }
  .card-media{ position:relative; overflow:hidden; aspect-ratio:16/10; background:#E7EDE7; }
  .card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
  .card:hover .card-media img{ transform:scale(1.04); }
  .card-media .badge{ position:absolute; left:14px; top:14px; background:rgba(255,255,255,.92); color:#0E7A63; }
  .card-body{ padding:20px 22px 22px; display:flex; flex-direction:column; gap:10px; flex:1; }
  .card-body h3{ font-size:1.06rem; line-height:1.5; }
  .card:hover .card-body h3{ color:var(--brand-deep); }
  .card-body p{ font-size:14.2px; color:var(--muted); line-height:1.75; }
  .card-foot{
    margin-top:auto; padding-top:12px; border-top:1px solid var(--border);
    display:flex; align-items:center; justify-content:space-between;
    font-size:12.8px; color:#889A91;
  }
  .card-foot .more{ color:var(--brand-deep); font-weight:600; }

  /* ---------- 订阅 CTA ---------- */
  .subscribe{ padding:72px 0 84px; }
  .subscribe-panel{
    position:relative; overflow:hidden;
    background:linear-gradient(120deg,#0D1411 0%,#12241E 62%,#14362C 100%);
    border-radius:var(--r-xl); padding:48px;
    display:grid; grid-template-columns:1.05fr .95fr; gap:40px; align-items:center;
    box-shadow:var(--sh-3);
  }
  .subscribe-panel::before{
    content:""; position:absolute; right:-60px; top:-60px; width:280px; height:280px;
    border-radius:50%; background:radial-gradient(circle,rgba(23,195,162,.35),transparent 68%);
  }
  .subscribe-panel::after{
    content:""; position:absolute; left:-40px; bottom:-70px; width:220px; height:220px;
    border-radius:50%; background:radial-gradient(circle,rgba(124,92,255,.28),transparent 70%);
  }
  .subscribe-copy{ position:relative; z-index:1; }
  .subscribe-copy .badge{ background:rgba(23,195,162,.18); color:#7BE7CF; }
  .subscribe-copy h2{ color:#fff; font-size:clamp(1.5rem,2.8vw,2.05rem); margin:16px 0 12px; }
  .subscribe-copy p{ color:rgba(226,240,234,.78); font-size:15.5px; line-height:1.85; max-width:460px; }
  .subscribe-form{ position:relative; z-index:1; }
  .field-label{ display:block; font-size:13.5px; color:rgba(226,240,234,.8); margin-bottom:8px; }
  .field-input{
    width:100%; height:48px; padding:0 16px; border-radius:12px;
    border:1px solid rgba(255,255,255,.18); background:rgba(255,255,255,.06);
    color:#fff; outline:0; transition:border-color .2s, box-shadow .2s;
  }
  .field-input::placeholder{ color:rgba(226,240,234,.45); }
  .field-input:focus{ border-color:var(--brand); box-shadow:0 0 0 4px rgba(23,195,162,.18); }
  .check-row{ display:flex; align-items:flex-start; gap:10px; margin:14px 0 18px; font-size:13.2px; color:rgba(226,240,234,.72); line-height:1.7; }
  .check-row input{ margin-top:4px; accent-color:var(--brand); }
  .form-msg{ margin-top:12px; font-size:13.5px; display:none; }
  .form-msg.ok{ display:block; color:#7BE7CF; }
  .form-msg.err{ display:block; color:#FFB27A; }

  /* ---------- 页脚 ---------- */
  .site-footer{ background:#0D1411; color:#B9C8C1; padding:56px 0 26px; border-top:1px solid rgba(255,255,255,.06); }
  .footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.4fr; gap:36px; padding-bottom:38px; }
  .footer-brand{ display:flex; align-items:center; gap:10px; margin-bottom:16px; }
  .footer-brand .brand-mark{ box-shadow:none; }
  .footer-brand span{ font-size:17px; font-weight:800; color:#fff; }
  .footer-brand span em{ font-style:normal; color:#5FE0C4; }
  .footer-col h4{ color:#fff; font-size:14.5px; margin-bottom:16px; letter-spacing:.4px; }
  .footer-col ul{ display:flex; flex-direction:column; gap:11px; }
  .footer-col a, .footer-col li{ font-size:14px; color:#9FB0A8; transition:color .2s; }
  .footer-col a:hover{ color:#5FE0C4; }
  .footer-tags{ display:flex; flex-wrap:wrap; gap:8px; }
  .footer-tags span{
    font-size:12.5px; padding:5px 11px; border-radius:999px;
    background:rgba(255,255,255,.06); color:#A9BAB2;
  }
  .footer-note{ font-size:13.6px; line-height:1.85; color:#8FA19A; max-width:320px; }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08); padding-top:20px;
    display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
    font-size:13px; color:#7B8B84;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .cmd-search{ width:230px; }
    .nav-quick span{ display:none; }
  }
  @media (max-width:1024px){
    .nav-links,.cmd-search,.nav-quick{ display:none; }
    .menu-btn{ display:inline-flex; }
    .article-shell{ grid-template-columns:1fr; gap:28px; }
    .toc{ position:static; order:-1; }
    .toc-list{ max-height:none; }
    .card-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
    .subscribe-panel{ grid-template-columns:1fr; padding:40px 32px; gap:28px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:30px; }
  }
  @media (max-width:768px){
    .container{ padding:0 18px; }
    .article-banner{ padding:26px 0 84px; }
    .article-head{ margin-top:-64px; }
    .article-head-inner{ padding:26px 22px 24px; border-radius:var(--r-lg); }
    .article-panel{ padding:26px 20px 24px; border-radius:var(--r-lg); }
    .article-body{ font-size:16.2px; line-height:1.85; }
    .article-body h2{ padding-left:12px; }
    .article-main{ padding:36px 0 4px; }
    .related{ padding:48px 0 4px; }
    .subscribe{ padding:54px 0 62px; }
    .card-grid{ grid-template-columns:1fr; }
    .subscribe-panel{ padding:32px 22px; border-radius:var(--r-lg); }
    .footer-grid{ grid-template-columns:1fr; gap:26px; }
    .footer-bottom{ justify-content:flex-start; }
  }
  @media (max-width:520px){
    .brand-name{ font-size:15.5px; }
    .article-title{ font-size:1.5rem; }
    .article-meta{ gap:8px 16px; font-size:13px; }
    .btn{ width:100%; }
    .header-right .btn{ width:auto; }
  }
  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-thumb{ background:#CFDAD2; border-radius:8px; border:2px solid var(--bg); }
  ::-webkit-scrollbar-thumb:hover{ background:#B6C6BC; }

/* roulang page: category1 */
:root{
    --brand:#17C3A2;
    --brand-dark:#12A98C;
    --brand-soft:rgba(23,195,162,.12);
    --violet:#7C5CFF;
    --amber:#FF8A3D;
    --ink:#0D1411;
    --ink-2:#16241E;
    --text:#1B2420;
    --muted:#5C6B65;
    --bg:#F6F7F3;
    --surface:#FFFFFF;
    --surface-2:#EEF3EE;
    --border:#E3E8E2;
    --radius-sm:12px;
    --radius:16px;
    --radius-lg:22px;
    --radius-xl:28px;
    --shadow-xs:0 1px 2px rgba(16,20,24,.05);
    --shadow-sm:0 6px 18px rgba(16,20,24,.05);
    --shadow-md:0 10px 30px rgba(16,20,24,.06);
    --shadow-lg:0 24px 60px rgba(16,20,24,.10);
    --ease:cubic-bezier(.4,0,.2,1);
  }

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

  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  img{display:block;max-width:100%;background:#E8EDE7}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-thumb{background:#CDD6CE;border-radius:999px;border:3px solid var(--bg)}
  ::-webkit-scrollbar-track{background:transparent}

  :focus-visible{outline:2px solid rgba(23,195,162,.65);outline-offset:2px;border-radius:8px}

  .shell{width:100%;max-width:1220px;margin:0 auto;padding-left:20px;padding-right:20px}

  .h1{font-size:clamp(1.9rem,4.2vw,3rem);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin:0}
  .h2{font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.28;font-weight:700;letter-spacing:-.005em;margin:0}
  .h3{font-size:1.16rem;line-height:1.5;font-weight:600;margin:0}

  .section{padding:72px 0}
  .section-tight{padding:40px 0}
  @media (max-width:768px){
    .section{padding:52px 0}
    .section-tight{padding:32px 0}
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(246,247,243,.88);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
  }
  .header-inner{display:flex;align-items:center;gap:20px;height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;
    background:linear-gradient(135deg,var(--brand) 0%,var(--violet) 100%);
    display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;
    box-shadow:0 6px 16px rgba(23,195,162,.28);
  }
  .brand-text em{font-style:normal;color:var(--brand-dark)}
  .nav-links{display:flex;align-items:center;gap:24px;margin-left:12px}
  .nav-link{
    position:relative;font-size:15px;color:var(--muted);padding:6px 2px;
    transition:color .2s var(--ease);
  }
  .nav-link:hover{color:var(--brand-dark)}
  .nav-link.active{color:var(--ink);font-weight:600}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--brand);
  }
  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
  .command-search{
    display:flex;align-items:center;gap:9px;width:280px;height:44px;padding:0 12px;
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,195,162,.18)}
  .command-search i{color:var(--muted);font-size:13px}
  .command-search input{
    flex:1;min-width:0;border:0;outline:0;background:transparent;
    font-size:14px;color:var(--text);font-family:inherit;
  }
  .command-search input::placeholder{color:#93A39B}
  .kbd{
    font-size:11px;color:var(--muted);background:var(--surface-2);
    border:1px solid var(--border);border-radius:6px;padding:2px 6px;white-space:nowrap;
  }
  .icon-btn{
    width:44px;height:44px;border-radius:var(--radius-sm);display:grid;place-items:center;
    border:1px solid var(--border);background:var(--surface);color:var(--muted);
    transition:all .2s var(--ease);
  }
  .icon-btn:hover{color:var(--brand-dark);border-color:rgba(23,195,162,.45);background:#fff}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:all .2s var(--ease);white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#06231C;box-shadow:0 6px 16px rgba(23,195,162,.20)}
  .btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(23,195,162,.26)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:transparent;border-color:var(--border);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--brand);background:rgba(23,195,162,.07);color:var(--brand-dark)}
  .btn-block{width:100%}

  .menu-toggle{
    display:none;width:44px;height:44px;border-radius:var(--radius-sm);
    border:1px solid var(--border);background:var(--surface);color:var(--ink);
    cursor:pointer;align-items:center;justify-content:center;font-size:16px;
  }

  .mobile-drawer{
    display:none;position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
    background:var(--bg);border-top:1px solid var(--border);
    padding:20px;overflow-y:auto;
  }
  .mobile-drawer.is-open{display:block}
  .drawer-search{width:100%;margin-bottom:18px}
  .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
  .drawer-link{
    padding:13px 14px;border-radius:var(--radius-sm);font-size:16px;color:var(--text);
    border:1px solid transparent;transition:all .2s var(--ease);
  }
  .drawer-link:hover{background:var(--surface);border-color:var(--border)}
  .drawer-link.is-active{background:var(--surface);border-color:rgba(23,195,162,.4);color:var(--brand-dark);font-weight:600}

  @media (max-width:1024px){
    .nav-links{display:none}
    .command-search{display:none}
    .header-actions .icon-btn{display:none}
    .header-actions .btn-primary{display:none}
    .menu-toggle{display:inline-flex}
  }

  /* ---------- 分类页 Hero ---------- */
  .cat-hero{
    position:relative;overflow:hidden;
    min-height:300px;display:flex;align-items:center;
    border-bottom:1px solid var(--border);
  }
  .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#101A16}
  .hero-scrim{
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(9,20,16,.94) 0%,rgba(9,20,16,.82) 46%,rgba(9,20,16,.42) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding-top:52px;padding-bottom:52px}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#9DB2A9;margin-bottom:16px}
  .crumb a{color:#9DB2A9;transition:color .2s var(--ease)}
  .crumb a:hover{color:var(--brand)}
  .crumb-sep{color:rgba(255,255,255,.28)}
  .crumb [aria-current]{color:#fff}
  .hero-title{color:#fff;max-width:820px}
  .hero-sub{color:#B6C7BE;font-size:17px;margin:16px 0 0;max-width:640px}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .hero-tag{
    font-size:13px;color:#CFE3DA;background:rgba(255,255,255,.09);
    border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:5px 13px;
  }

  /* ---------- 分类页1 主体布局 ---------- */
  .cat1-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:28px;align-items:start}
  @media (max-width:1024px){
    .cat1-grid{grid-template-columns:1fr;gap:22px}
  }

  .side-card{
    background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-xs);
  }
  .sticky-side{position:sticky;top:92px}
  @media (max-width:1024px){
    .sticky-side{position:static}
    .side-card{padding:18px}
  }

  .side-label{
    font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);
    text-transform:uppercase;margin:0 0 12px;
  }
  .filter-list{display:flex;flex-direction:column;gap:6px}
  .filter-btn{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    width:100%;padding:10px 12px;border-radius:10px;border:1px solid transparent;
    background:transparent;color:var(--text);font-size:14px;cursor:pointer;text-align:left;
    transition:all .2s var(--ease);
  }
  .filter-btn:hover{background:var(--surface-2)}
  .filter-btn.is-active{background:var(--brand-soft);border-color:rgba(23,195,162,.4);color:var(--brand-dark);font-weight:600}
  .filter-btn .count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
  .filter-btn.is-active .count{color:var(--brand-dark)}

  .side-divider{height:1px;background:var(--border);margin:20px 0}
  .side-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
  .side-links a{
    display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:10px;
    font-size:14px;color:var(--muted);transition:all .2s var(--ease);
  }
  .side-links a:hover{background:var(--surface-2);color:var(--brand-dark)}
  .side-links i{font-size:11px;color:var(--brand)}

  .side-help{
    margin-top:20px;padding:16px;border-radius:var(--radius-sm);
    background:var(--surface-2);border:1px solid var(--border);
  }
  .side-help p{margin:0;font-size:13px;line-height:1.75;color:var(--muted)}
  .side-help strong{display:block;font-size:14px;color:var(--ink);margin-bottom:6px}

  /* ---------- 横向列表卡 ---------- */
  .list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
  .list-head p{margin:6px 0 0;font-size:14px;color:var(--muted)}
  .card-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  @media (max-width:1100px){ .card-list{grid-template-columns:1fr} }

  .list-card{
    display:flex;gap:16px;padding:16px;background:var(--surface);
    border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-xs);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .list-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(23,195,162,.35)}
  .list-card[hidden]{display:none}
  .list-thumb{
    flex:0 0 132px;height:104px;border-radius:14px;overflow:hidden;background:#E8EDE7;
  }
  .list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
  .list-card:hover .list-thumb img{transform:scale(1.04)}
  .list-body{min-width:0;display:flex;flex-direction:column}
  .meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
  .badge{
    display:inline-flex;align-items:center;gap:5px;
    font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;font-weight:600;white-space:nowrap;
  }
  .badge-brand{background:var(--brand-soft);color:#0F7F6B}
  .badge-violet{background:rgba(124,92,255,.12);color:#5B3FE0}
  .badge-amber{background:rgba(255,138,61,.14);color:#C25F1B}
  .badge-slate{background:#EDF1EC;color:#4C5B54}
  .meta-time{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
  .list-title{margin:0 0 8px}
  .list-title a{color:var(--ink);transition:color .2s var(--ease)}
  .list-card:hover .list-title a{color:var(--brand-dark)}
  .list-desc{margin:0;font-size:14px;line-height:1.75;color:var(--muted)}
  .list-more{
    margin-top:auto;padding-top:10px;font-size:13.5px;font-weight:600;color:var(--brand-dark);
    display:inline-flex;align-items:center;gap:6px;
  }
  .list-more i{font-size:11px;transition:transform .2s var(--ease)}
  .list-card:hover .list-more i{transform:translateX(3px)}

  @media (max-width:520px){
    .list-card{flex-direction:column;gap:12px}
    .list-thumb{flex:none;width:100%;height:152px}
  }

  .empty-state{
    padding:32px;border-radius:var(--radius);background:var(--surface);
    border:1px dashed var(--border);text-align:center;color:var(--muted);font-size:14px;
  }

  /* ---------- 通用板块头部 ---------- */
  .sec-head{max-width:640px;margin-bottom:36px}
  .sec-desc{margin:12px 0 0;font-size:16px;color:var(--muted)}

  /* ---------- 流程步骤 ---------- */
  .step-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  @media (max-width:1024px){ .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
  @media (max-width:560px){ .step-grid{grid-template-columns:1fr} }

  .step-card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
    padding:24px;box-shadow:var(--shadow-xs);position:relative;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(23,195,162,.32)}
  .step-num{
    display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
    background:linear-gradient(135deg,var(--brand),#0FB79A);color:#04241D;
    font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
    box-shadow:0 8px 18px rgba(23,195,162,.22);margin-bottom:16px;
  }
  .step-card h3{margin:0 0 8px;font-size:17px;font-weight:700;color:var(--ink)}
  .step-card p{margin:0;font-size:14px;line-height:1.78;color:var(--muted)}
  .step-card:nth-child(2) .step-num{background:linear-gradient(135deg,var(--violet),#6A4BE8);color:#fff;box-shadow:0 8px 18px rgba(124,92,255,.22)}
  .step-card:nth-child(3) .step-num{background:linear-gradient(135deg,var(--amber),#F2762A);color:#3A1804;box-shadow:0 8px 18px rgba(255,138,61,.22)}
  .step-card:nth-child(4) .step-num{background:linear-gradient(135deg,#2F4A3E,#16241E);color:#E7F4EE;box-shadow:0 8px 18px rgba(13,20,17,.20)}

  /* ---------- 数据条 ---------- */
  .stat-strip{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
    background:var(--border);border:1px solid var(--border);border-radius:var(--radius-lg);
    overflow:hidden;box-shadow:var(--shadow-xs);
  }
  @media (max-width:768px){ .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))} }
  .stat{background:var(--surface);padding:26px 22px;text-align:center}
  .stat-num{
    display:block;font-size:clamp(1.6rem,3vw,2.1rem);font-weight:800;color:var(--ink);
    font-variant-numeric:tabular-nums;line-height:1.1;
  }
  .stat-label{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 22px}
  @media (max-width:900px){ .faq-grid{grid-template-columns:1fr} }
  .faq-item{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
    padding:0 20px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .faq-item:hover{border-color:rgba(23,195,162,.3)}
  .faq-item.is-open{border-color:rgba(23,195,162,.45);box-shadow:var(--shadow-sm)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:transparent;border:0;padding:20px 0;cursor:pointer;text-align:left;
    font-size:16.5px;font-weight:600;color:var(--ink);font-family:inherit;line-height:1.5;
  }
  .faq-q i{color:var(--brand-dark);font-size:13px;transition:transform .24s var(--ease);flex:0 0 auto}
  .faq-item.is-open .faq-q i{transform:rotate(45deg)}
  .faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s var(--ease)}
  .faq-item.is-open .faq-a{grid-template-rows:1fr}
  .faq-a > div{overflow:hidden}
  .faq-a p{margin:0 0 20px;font-size:15px;line-height:1.82;color:var(--muted)}

  /* ---------- CTA ---------- */
  .cta-inner{
    position:relative;overflow:hidden;
    background:linear-gradient(135deg,#0D1411 0%,#143227 62%,#17423A 100%);
    border-radius:var(--radius-xl);padding:48px;
    display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
    box-shadow:var(--shadow-lg);
  }
  .cta-inner::after{
    content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(23,195,162,.30) 0%,rgba(23,195,162,0) 70%);
  }
  @media (max-width:900px){
    .cta-inner{grid-template-columns:1fr;gap:30px;padding:34px 24px}
  }
  .cta-title{color:#fff}
  .cta-desc{color:#A9BDB4;font-size:15.5px;margin:14px 0 0;max-width:460px}
  .cta-points{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:10px}
  .cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#C6D8CF}
  .cta-points i{color:var(--brand);font-size:12px}

  .cta-form{position:relative;z-index:2;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:var(--radius-lg);padding:24px}
  .field-label{display:block;font-size:13.5px;font-weight:600;color:#D3E2DA;margin-bottom:8px}
  .field-input{
    width:100%;height:48px;padding:0 14px;border-radius:12px;
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
    color:#fff;font-size:15px;font-family:inherit;outline:0;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field-input::placeholder{color:#8FA79D}
  .field-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,195,162,.22)}
  .check-row{display:flex;align-items:flex-start;gap:9px;margin:14px 0 16px;font-size:13.5px;color:#AFC3B9;line-height:1.6}
  .check-row input{margin-top:4px;accent-color:var(--brand);width:15px;height:15px}
  .form-msg{margin:12px 0 0;font-size:13.5px;min-height:20px}
  .form-msg.is-error{color:var(--amber)}
  .form-msg.is-success{color:var(--brand)}

  /* ---------- 页脚 ---------- */
  .site-footer{margin-top:76px;background:var(--ink);color:#C4D3CB;padding:64px 0 26px}
  .footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
  @media (max-width:1024px){ .footer-top{grid-template-columns:1fr 1fr;gap:32px} }
  @media (max-width:560px){ .footer-top{grid-template-columns:1fr;gap:28px} }

  .footer-brand .brand-text{color:#fff}
  .footer-brand .brand-text em{color:var(--brand)}
  .footer-desc{font-size:14px;line-height:1.85;color:#93A69D;margin:16px 0 0;max-width:340px}
  .footer-quote{
    font-size:14px;line-height:1.85;color:#9FB3AA;margin:18px 0 0;
    padding-left:14px;border-left:2px solid var(--brand);max-width:340px;
  }
  .footer-quote span{color:#7E9189;font-size:13px}
  .footer-title{color:#fff;font-size:14px;font-weight:700;margin:0 0 14px;letter-spacing:.02em}
  .footer-col a{
    display:block;padding:6px 0;font-size:14px;color:#A9BBB3;
    transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .footer-col a:hover{color:var(--brand)}
  .footer-sub-desc{font-size:13.5px;color:#93A69D;margin:0 0 12px;line-height:1.7}
  .footer-form{display:flex;gap:8px;max-width:320px}
  .footer-form input{
    flex:1;min-width:0;height:44px;padding:0 12px;border-radius:12px;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
    color:#fff;font-size:14px;font-family:inherit;outline:0;transition:all .2s var(--ease);
  }
  .footer-form input::placeholder{color:#7E9189}
  .footer-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,195,162,.18)}
  .footer-form button{
    width:44px;height:44px;flex:0 0 44px;border-radius:12px;border:0;cursor:pointer;
    background:var(--brand);color:#06231C;font-size:14px;transition:all .2s var(--ease);
  }
  .footer-form button:hover{background:var(--brand-dark);color:#fff}
  .footer-form-msg{font-size:13px;color:var(--brand);margin:10px 0 0;min-height:18px}
  .footer-contact{font-size:13.5px;color:#93A69D;margin:14px 0 0;display:flex;align-items:center;gap:8px}
  .footer-contact i{color:var(--brand)}

  .footer-bottom{
    margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
    display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
    font-size:13px;color:#83968E;
  }
  .footer-bottom a{display:inline;color:#A9BBB3;text-decoration:none}
  .footer-bottom a:hover{color:var(--brand)}

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

/* roulang page: category2 */
:root{
  --brand:#17C3A2;
  --brand-dark:#12a888;
  --purple:#7C5CFF;
  --amber:#FF8A3D;
  --ink:#0D1411;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --soft:#EEF3EE;
  --border:#E3E8E2;
  --text:#1B2320;
  --muted:#5C6A64;
  --radius-card:18px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(16,20,24,.05);
  --shadow-md:0 10px 30px rgba(16,20,24,.06);
  --shadow-lg:0 24px 60px rgba(16,20,24,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{font-weight:700;line-height:1.28;margin:0;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(23,195,162,.24);}
:focus-visible{outline:2px solid rgba(23,195,162,.55);outline-offset:2px;border-radius:8px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}
.section-sm{padding:52px 0;}
@media (max-width:768px){
  .section{padding:52px 0;}
  .section-sm{padding:44px 0;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,247,243,.88);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,#0fa189 60%,var(--purple) 140%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;font-weight:800;
  box-shadow:0 6px 16px rgba(23,195,162,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:8px;}
.nav-link{
  font-size:15px;color:#38443F;padding:8px 2px;position:relative;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-dark);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:10px;
  width:280px;height:42px;padding:0 10px 0 14px;
  background:#fff;border:1px solid var(--border);border-radius:12px;
  box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search i{color:#8B978F;font-size:14px;}
.command-search input{
  flex:1;border:0;background:transparent;outline:none;font-size:14px;min-width:0;
}
.command-search input::placeholder{color:#9AA69E;}
.command-search kbd{
  font-size:11px;color:#7A867F;background:var(--soft);
  border:1px solid var(--border);border-radius:6px;padding:2px 6px;font-family:inherit;
}
.command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,195,162,.18);}
.icon-btn{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:#fff;
  display:flex;align-items:center;justify-content:center;color:#4A5751;cursor:pointer;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:rgba(23,195,162,.5);color:var(--brand-dark);transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;padding:12px 20px;
  transition:background .2s ease,transform .18s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#053C31;box-shadow:0 6px 16px rgba(23,195,162,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(23,195,162,.28);}
.btn-ghost{background:transparent;border:1px solid var(--border);color:#2C3A34;}
.btn-ghost:hover{border-color:var(--brand);background:rgba(23,195,162,.07);color:var(--brand-dark);transform:translateY(-1px);}
.btn-sm{padding:9px 15px;font-size:14px;}
.btn-dark{background:var(--ink);color:#EAF3EF;}
.btn-dark:hover{background:#16201C;transform:translateY(-1px);box-shadow:0 10px 24px rgba(13,20,17,.22);}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:#fff;align-items:center;justify-content:center;cursor:pointer;color:#2C3A34;}
.mobile-drawer{
  display:none;border-top:1px solid var(--border);background:#fff;
  padding:18px 20px 26px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-links{flex-direction:column;align-items:flex-start;gap:4px;margin:0 0 16px;}
.mobile-drawer .nav-link{display:block;width:100%;padding:12px 4px;border-bottom:1px solid var(--border);font-size:16px;}
.mobile-drawer .nav-link::after{display:none;}
.mobile-search{display:flex;align-items:center;gap:10px;width:100%;height:46px;padding:0 14px;border:1px solid var(--border);border-radius:12px;background:var(--soft);margin-bottom:14px;}
.mobile-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;}
@media (max-width:1023px){
  .nav-links,.command-search,.header-actions .btn{display:none;}
  .menu-toggle{display:flex;}
  .header-actions{margin-left:auto;gap:10px;}
}
@media (max-width:520px){
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:16px 0 0;}
.breadcrumb a:hover{color:var(--brand-dark);}
.breadcrumb .sep{color:#B7C1BA;}
.breadcrumb .current{color:#2C3A34;font-weight:600;}

/* ---------- Hero (narrow) ---------- */
.cat-hero{
  position:relative;margin-top:18px;border-radius:26px;overflow:hidden;
  background-color:var(--ink);
  min-height:290px;display:flex;align-items:flex-end;
  box-shadow:var(--shadow-md);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,20,17,.94) 0%,rgba(13,20,17,.72) 46%,rgba(13,20,17,.30) 100%);
}
.cat-hero-inner{position:relative;padding:40px 36px;max-width:760px;color:#EAF3EF;}
.cat-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:#8FF0DC;background:rgba(23,195,162,.14);
  border:1px solid rgba(23,195,162,.32);
  padding:6px 12px;border-radius:999px;margin-bottom:16px;
}
.cat-hero h1{font-size:clamp(2rem,4.2vw,3.1rem);color:#fff;margin-bottom:14px;}
.cat-hero p{font-size:17px;color:rgba(234,243,239,.82);margin-bottom:22px;max-width:640px;}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:768px){
  .cat-hero{min-height:auto;border-radius:20px;}
  .cat-hero-inner{padding:32px 22px;}
  .cat-hero p{font-size:16px;}
}

/* ---------- Filter bar ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:14px 16px;box-shadow:var(--shadow-sm);
}
.filter-label{font-size:13px;color:var(--muted);margin-right:4px;}
.chip{
  border:1px solid var(--border);background:var(--soft);color:#3A4740;
  border-radius:999px;padding:8px 16px;font-size:14px;cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{border-color:rgba(23,195,162,.5);color:var(--brand-dark);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#04382E;font-weight:700;box-shadow:0 6px 16px rgba(23,195,162,.22);}
.filter-count{margin-left:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}

/* ---------- Section heading ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:30px;}
.sec-head h2{font-size:clamp(1.55rem,2.6vw,2.1rem);}
.sec-head .sec-desc{font-size:15px;color:var(--muted);max-width:620px;margin-top:8px;}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(23,195,162,.32);}
.card-media{position:relative;overflow:hidden;background:var(--soft);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px 24px 24px;}
.card-title{font-size:19px;margin-bottom:10px;}
.card:hover .card-title{color:var(--brand-dark);}
.card-text{font-size:15px;color:var(--muted);line-height:1.78;margin-bottom:14px;}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:#7A867F;font-variant-numeric:tabular-nums;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
}
.badge-brand{background:rgba(23,195,162,.14);color:#0E8E75;}
.badge-purple{background:rgba(124,92,255,.13);color:#5B3FE0;}
.badge-amber{background:rgba(255,138,61,.15);color:#C25A15;}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-dark);}
.card-link:hover{color:var(--purple);}

/* large card */
.card-lg .card-media{height:230px;}
/* small card */
.card-sm .card-body{padding:20px;}
.card-sm .card-title{font-size:17px;}
.card-sm .card-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:16px;margin-bottom:14px;
}
.card-sm .card-media{height:140px;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  background:#fff;border:1px solid var(--border);border-radius:18px;padding:24px 22px;
  box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(23,195,162,.3);}
.step-num{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:#8FF0DC;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.75;}
@media (max-width:1023px){ .steps{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (max-width:600px){ .steps{grid-template-columns:1fr;} }

/* ---------- Data strip ---------- */
.data-strip{
  background:var(--ink);border-radius:24px;padding:36px;color:#EAF3EF;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.data-item{border-left:2px solid rgba(23,195,162,.4);padding-left:16px;}
.data-item .num{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:800;color:#8FF0DC;font-variant-numeric:tabular-nums;line-height:1.2;}
.data-item .lab{font-size:14px;color:rgba(234,243,239,.72);margin-top:6px;}
@media (max-width:900px){ .data-strip{grid-template-columns:repeat(2,minmax(0,1fr));padding:28px;} }
@media (max-width:520px){ .data-strip{grid-template-columns:1fr;gap:18px;} }

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:18px 20px;font-size:16.5px;font-weight:600;display:flex;justify-content:space-between;gap:14px;align-items:center;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-dark);}
.faq-q .faq-icon{color:var(--brand);transition:transform .22s ease;font-size:14px;flex-shrink:0;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 20px 18px;font-size:15px;color:var(--muted);line-height:1.82;margin:0;}
@media (max-width:860px){ .faq-grid{grid-template-columns:1fr;} }

/* ---------- CTA panel ---------- */
.cta-panel{
  background:linear-gradient(120deg,#0D1411 0%,#123027 55%,#134036 100%);
  border-radius:26px;padding:48px;color:#EAF3EF;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.cta-panel h2{font-size:clamp(1.5rem,2.6vw,2.05rem);color:#fff;margin-bottom:14px;}
.cta-panel p{color:rgba(234,243,239,.78);font-size:15.5px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;margin-bottom:8px;color:rgba(234,243,239,.86);}
.form-input{
  width:100%;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-input::placeholder{color:rgba(234,243,239,.45);}
.form-input:focus{border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(23,195,162,.22);}
.form-input.error{border-color:var(--amber);}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:rgba(234,243,239,.72);margin:4px 0 18px;}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:#17C3A2;}
.form-msg{font-size:14px;margin-top:12px;min-height:22px;}
.form-msg.ok{color:#8FF0DC;}
.form-msg.err{color:#FFB07A;}
@media (max-width:900px){
  .cta-panel{grid-template-columns:1fr;padding:32px 24px;border-radius:20px;gap:26px;}
}

/* ---------- Footer ---------- */
.site-footer{background:#0D1411;color:#C6D2CC;margin-top:72px;padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:800;}
.footer-brand .brand-sub{color:rgba(198,210,204,.6);font-size:11px;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(198,210,204,.72);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:rgba(198,210,204,.78);}
.footer-list a:hover{color:#8FF0DC;}
.footer-contact{font-size:14px;color:rgba(198,210,204,.78);line-height:1.9;}
.footer-note{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(198,210,204,.6);
}
.footer-quote{font-size:13.5px;color:rgba(143,240,220,.85);margin-top:12px;}
@media (max-width:900px){ .footer-grid{grid-template-columns:1fr 1fr;gap:28px;} }
@media (max-width:560px){ .footer-grid{grid-template-columns:1fr;} }

/* ---------- Misc ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.mini-note{font-size:13.5px;color:var(--muted);}
.hidden-card{display:none !important;}
.empty-state{
  display:none;text-align:center;padding:48px 20px;border:1px dashed var(--border);
  border-radius:18px;background:#fff;color:var(--muted);font-size:15px;
}
.empty-state.show{display:block;}