/* roulang page: index */
:root{
      --ink:#1A1024;
      --ink-2:#0F0C14;
      --panel:#17111D;
      --berry:#8B3A62;
      --berry-2:#A34D75;
      --apricot:#F2B8A2;
      --cream:#FFF8F2;
      --card:#FFF8F5;
      --text:#2B2130;
      --muted:#746778;
      --muted-light:#C9B7C8;
      --line:rgba(255,255,255,.12);
      --line-dark:rgba(60,35,55,.14);
      --shadow:0 18px 50px rgba(28,10,28,.16);
      --shadow-dark:0 24px 70px rgba(0,0,0,.35);
      --radius:24px;
      --radius-sm:16px;
      --container:1200px;
      --ease:all .28s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      line-height:1.75;
      color:var(--text);
      background:var(--cream);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(242,184,162,.55);outline-offset:3px}
    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .section{padding:86px 0;position:relative}
    .section-dark{background:linear-gradient(180deg,var(--ink-2),var(--ink));color:#fff}
    .section-title{font-size:clamp(26px,3vw,34px);line-height:1.22;font-weight:800;letter-spacing:-.02em}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      margin-bottom:14px;padding:7px 12px;border-radius:999px;
      color:var(--berry);background:rgba(139,58,98,.09);
      font-size:13px;font-weight:700;letter-spacing:.04em;
    }
    .section-dark .section-kicker{color:var(--apricot);background:rgba(242,184,162,.12);border:1px solid rgba(242,184,162,.18)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px}
    .section-head p{max-width:650px;color:var(--muted);font-size:16px}
    .section-dark .section-head p{color:var(--muted-light)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:13px 22px;border-radius:999px;
      font-weight:800;line-height:1;border:1px solid transparent;
      transition:var(--ease);white-space:nowrap;
    }
    .btn .arrow{transition:transform .28s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:hover .arrow{transform:translateX(3px)}
    .btn-primary{background:var(--berry);color:#fff;box-shadow:0 12px 28px rgba(139,58,98,.28)}
    .btn-primary:hover{background:var(--berry-2);box-shadow:0 18px 36px rgba(139,58,98,.36)}
    .btn-secondary{background:rgba(255,248,245,.92);color:var(--berry);border-color:rgba(139,58,98,.26)}
    .btn-secondary:hover{border-color:var(--apricot);box-shadow:0 12px 26px rgba(242,184,162,.22)}
    .btn-ghost{background:transparent;color:var(--apricot);border-color:rgba(242,184,162,.35)}
    .btn-ghost:hover{background:rgba(242,184,162,.1);border-color:var(--apricot)}
    .badge,.tag{
      display:inline-flex;align-items:center;gap:6px;border-radius:999px;
      padding:6px 11px;font-size:12px;font-weight:800;line-height:1.2;
    }
    .badge{background:rgba(242,184,162,.16);color:var(--apricot);border:1px solid rgba(242,184,162,.22)}
    .tag{background:rgba(139,58,98,.1);color:var(--berry)}
    .site-header{
      position:fixed;top:0;left:0;right:0;z-index:50;
      background:linear-gradient(180deg,rgba(15,12,20,.92),rgba(15,12,20,.58));
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(16px);
      transition:var(--ease);
    }
    .site-header.is-scrolled{background:rgba(26,16,36,.96);box-shadow:0 12px 34px rgba(0,0,0,.2)}
    .nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .logo{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900;letter-spacing:-.02em}
    .logo-mark{
      width:40px;height:40px;border-radius:14px;
      background:linear-gradient(135deg,var(--berry),var(--apricot));
      box-shadow:0 12px 30px rgba(139,58,98,.32);
      position:relative;flex:none;
    }
    .logo-mark:before{content:"";position:absolute;left:12px;top:8px;width:15px;height:24px;border-radius:2px;background:rgba(255,255,255,.86)}
    .logo-mark:after{content:"";position:absolute;right:9px;top:10px;width:2px;height:20px;background:rgba(26,16,36,.35)}
    .logo-text{font-size:17px}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{
      color:rgba(255,255,255,.78);font-size:14px;font-weight:700;
      padding:10px 13px;border-radius:999px;
    }
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.1)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.12)
    }
    .hero{
      min-height:780px;padding:142px 0 84px;color:#fff;
      background:
        radial-gradient(circle at 18% 22%,rgba(139,58,98,.45),transparent 34%),
        radial-gradient(circle at 78% 34%,rgba(242,184,162,.18),transparent 32%),
        linear-gradient(135deg,rgba(15,12,20,.9),rgba(26,16,36,.94)),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      position:relative;overflow:hidden;
    }
    .hero:before{
      content:"";position:absolute;inset:0;
      background:linear-gradient(90deg,rgba(15,12,20,.9),rgba(15,12,20,.52) 56%,rgba(15,12,20,.82));
      pointer-events:none;
    }
    .hero:after{
      content:"";position:absolute;inset:auto -10% -18% -10%;height:260px;
      background:radial-gradient(ellipse at center,rgba(242,184,162,.14),transparent 65%);
    }
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;gap:58px;align-items:center}
    .hero-copy{max-width:670px}
    .hero-eyebrow{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
    h1{
      font-size:clamp(34px,5vw,56px);
      line-height:1.14;font-weight:900;letter-spacing:-.045em;
      margin-bottom:22px;
    }
    .hero-subtitle{font-size:18px;line-height:1.85;color:rgba(255,255,255,.78);max-width:620px}
    .hero-buttons{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0 26px}
    .keyword-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .keyword-strip span{padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.76);font-size:13px}
    .archive-board{position:relative;min-height:520px}
    .cover-card{
      position:absolute;right:24px;top:20px;width:min(430px,100%);
      border-radius:32px;overflow:hidden;border:1px solid rgba(255,255,255,.15);
      box-shadow:var(--shadow-dark);background:var(--panel);
    }
    .cover-card img{height:410px;width:100%;object-fit:cover;filter:saturate(.9) contrast(1.02)}
    .cover-card .cover-overlay{
      position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(15,12,20,.88));
      display:flex;flex-direction:column;justify-content:flex-end;padding:26px;
    }
    .cover-title{font-size:23px;font-weight:900;line-height:1.25;margin-top:12px}
    .float-note{
      position:absolute;left:0;width:290px;border-radius:22px;padding:18px;
      background:rgba(255,248,245,.94);color:var(--text);
      box-shadow:0 20px 45px rgba(0,0,0,.22);border:1px solid rgba(255,255,255,.5);
    }
    .float-note.one{top:92px}
    .float-note.two{bottom:62px;left:42px}
    .float-note strong{display:block;font-size:17px;margin-bottom:5px}
    .float-note p{font-size:13px;color:var(--muted);line-height:1.65}
    .update-chip{
      position:absolute;right:0;bottom:12px;border-radius:999px;padding:12px 16px;
      background:linear-gradient(135deg,var(--apricot),#FFE0D1);
      color:var(--ink);font-weight:900;box-shadow:0 18px 38px rgba(242,184,162,.24)
    }
    .notice-wrap{margin-top:-32px;position:relative;z-index:3}
    .notice{
      display:flex;align-items:flex-start;gap:16px;
      padding:22px 24px;border-radius:22px;background:var(--card);
      border:1px solid rgba(242,184,162,.55);box-shadow:var(--shadow);
    }
    .notice-icon{width:42px;height:42px;border-radius:15px;background:rgba(242,184,162,.34);display:grid;place-items:center;flex:none;color:var(--berry);font-weight:900}
    .notice strong{display:block;margin-bottom:4px;color:var(--ink)}
    .notice p{color:var(--muted);font-size:15px}
    .features-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:26px;align-items:stretch}
    .feature-intro{
      border-radius:var(--radius);padding:32px;background:linear-gradient(150deg,var(--ink),var(--panel));
      color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden;
    }
    .feature-intro:after{content:"";position:absolute;right:-48px;bottom:-58px;width:180px;height:180px;border-radius:50%;background:rgba(242,184,162,.12)}
    .feature-intro h2{font-size:30px;line-height:1.25;margin-bottom:14px}
    .feature-intro p{color:rgba(255,255,255,.74)}
    .feature-bars{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .feature-bar{
      background:#fff;border:1px solid var(--line-dark);border-radius:22px;padding:24px;
      box-shadow:0 12px 34px rgba(28,10,28,.07);transition:var(--ease);
    }
    .feature-bar:hover{transform:translateY(-3px);border-color:rgba(139,58,98,.34);box-shadow:var(--shadow)}
    .feature-icon{width:44px;height:44px;border-radius:15px;background:rgba(139,58,98,.1);color:var(--berry);display:grid;place-items:center;font-weight:900;margin-bottom:14px}
    .feature-bar h3{font-size:19px;margin-bottom:7px}
    .feature-bar p{color:var(--muted);font-size:15px}
    .latest-shell{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px}
    .featured-list-card,.timeline-card{
      background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:var(--radius);
      padding:24px;box-shadow:var(--shadow-dark);
    }
    .cms-card{
      display:flex;gap:18px;padding:20px;border-radius:20px;
      background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
      transition:var(--ease);height:100%;
    }
    .cms-card:hover{transform:translateY(-3px);border-color:rgba(242,184,162,.35);background:rgba(255,255,255,.09)}
    .cms-cover{width:132px;min-height:132px;border-radius:18px;overflow:hidden;flex:none;background:rgba(242,184,162,.12)}
    .cms-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
    .cms-card:hover .cms-cover img{transform:scale(1.03)}
    .cms-body{min-width:0;display:flex;flex-direction:column}
    .cms-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;color:var(--muted-light);font-size:12px}
    .cms-title{
      font-size:21px;line-height:1.35;font-weight:900;margin-bottom:10px;color:#fff;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .cms-desc{
      color:rgba(255,255,255,.68);font-size:15px;line-height:1.7;margin-bottom:14px;
      display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
    }
    .read-link{margin-top:auto;color:var(--apricot);font-weight:800;font-size:14px}
    .read-link:hover{text-decoration:underline;text-underline-offset:4px}
    .timeline-list{display:grid;gap:14px}
    .timeline-item{
      display:grid;grid-template-columns:78px 1fr;gap:14px;align-items:start;
      padding:16px;border-radius:18px;background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.09);transition:var(--ease)
    }
    .timeline-item:hover{border-color:rgba(139,58,98,.55);background:rgba(255,255,255,.075)}
    .timeline-date{font-size:12px;color:var(--apricot);font-weight:900;padding-top:3px}
    .timeline-item h3{
      color:#fff;font-size:17px;line-height:1.4;margin-bottom:5px;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .timeline-item p{
      color:rgba(255,255,255,.62);font-size:14px;line-height:1.65;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .empty-state{
      grid-column:1/-1;text-align:center;padding:42px 18px;border-radius:24px;
      border:1px dashed rgba(242,184,162,.38);background:rgba(255,255,255,.055);
      color:rgba(255,255,255,.78)
    }
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
    .step{
      position:relative;padding:26px 22px;border-radius:22px;background:#fff;
      border:1px solid var(--line-dark);box-shadow:0 12px 30px rgba(28,10,28,.06);
    }
    .step:before{
      counter-increment:step;content:"0" counter(step);
      display:inline-flex;margin-bottom:18px;width:46px;height:46px;border-radius:16px;
      align-items:center;justify-content:center;background:var(--ink);color:var(--apricot);
      font-weight:900;
    }
    .step h3{font-size:18px;margin-bottom:8px}
    .step p{color:var(--muted);font-size:15px}
    .showcase{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center}
    .showcase-visual{position:relative;border-radius:32px;overflow:hidden;min-height:480px;box-shadow:var(--shadow);border:1px solid var(--line-dark)}
    .showcase-visual img{width:100%;height:480px;object-fit:cover}
    .showcase-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,12,20,.05),rgba(15,12,20,.78))}
    .showcase-caption{position:absolute;left:26px;right:26px;bottom:24px;color:#fff;z-index:1}
    .showcase-caption h2{font-size:30px;line-height:1.25;margin:12px 0 8px}
    .showcase-caption p{color:rgba(255,255,255,.76)}
    .summary-cards{display:grid;gap:16px}
    .summary-card{
      padding:22px;border-radius:22px;background:#fff;border:1px solid var(--line-dark);
      box-shadow:0 12px 30px rgba(28,10,28,.06);transition:var(--ease)
    }
    .summary-card:hover{transform:translateX(4px);border-color:rgba(139,58,98,.28)}
    .summary-card h3{font-size:19px;margin-bottom:7px}
    .summary-card p{font-size:15px;color:var(--muted)}
    .proof-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
    .proof-card{
      border-radius:22px;padding:25px;background:rgba(255,255,255,.06);
      border:1px solid var(--line)
    }
    .proof-num{font-size:34px;font-weight:900;color:var(--apricot);line-height:1;margin-bottom:10px}
    .proof-card p{color:rgba(255,255,255,.72);font-size:15px}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:start}
    .faq-list{display:grid;gap:14px}
    .faq-item{
      background:#fff;border:1px solid var(--line-dark);border-radius:20px;overflow:hidden;
      box-shadow:0 10px 26px rgba(28,10,28,.05)
    }
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:20px 22px;background:transparent;color:var(--ink);font-weight:900;text-align:left;
      transition:var(--ease)
    }
    .faq-question:hover{color:var(--berry)}
    .faq-icon{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:rgba(139,58,98,.1);color:var(--berry);transition:var(--ease);flex:none}
    .faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:15px;border-top:1px solid rgba(60,35,55,.1)}
    .faq-item.open .faq-answer{display:block;padding-top:16px}
    .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--berry);color:#fff}
    .cta-panel{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;padding:34px;border-radius:32px;
      background:linear-gradient(135deg,var(--ink),#24132E);color:#fff;box-shadow:var(--shadow-dark);
      position:relative;overflow:hidden;
    }
    .cta-panel:before{content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;background:rgba(242,184,162,.12)}
    .cta-copy,.feedback-form{position:relative;z-index:1}
    .cta-copy h2{font-size:32px;line-height:1.25;margin:12px 0}
    .cta-copy p{color:rgba(255,255,255,.74);margin-bottom:22px}
    .feedback-form{background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:24px;padding:24px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px;margin-bottom:14px}
    .field.full{grid-column:1/-1}
    label{font-size:13px;font-weight:800;color:rgba(255,255,255,.82)}
    input,select,textarea{
      width:100%;border-radius:15px;border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.09);color:#fff;padding:13px 14px;
      transition:var(--ease)
    }
    input::placeholder,textarea::placeholder{color:rgba(255,255,255,.42)}
    input:focus,select:focus,textarea:focus{outline:none;border-color:var(--berry-2);box-shadow:0 0 0 4px rgba(139,58,98,.18);background:rgba(255,255,255,.12)}
    select option{color:var(--text)}
    textarea{min-height:118px;resize:vertical}
    .form-note{font-size:12px;color:rgba(255,255,255,.58);margin-top:10px}
    .site-footer{background:var(--ink-2);color:#fff;padding:58px 0 26px}
    .footer-grid{display:grid;grid-template-columns:1.25fr .75fr .9fr .9fr;gap:30px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
    .footer-brand p,.footer-col p{color:rgba(255,255,255,.62);font-size:14px;margin-top:12px}
    .footer-col h3{font-size:16px;margin-bottom:12px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:rgba(255,255,255,.66);font-size:14px}
    .footer-links a:hover{color:var(--apricot);text-decoration:underline;text-underline-offset:4px}
    .footer-bottom{display:flex;justify-content:space-between;gap:16px;align-items:center;padding-top:22px;color:rgba(255,255,255,.52);font-size:13px}
    .backtop{color:var(--apricot);font-weight:800}
    .backtop:hover{text-decoration:underline;text-underline-offset:4px}
    @media (max-width:1024px){
      .hero-grid,.features-layout,.latest-shell,.showcase,.faq-wrap,.cta-panel{grid-template-columns:1fr}
      .archive-board{min-height:460px;max-width:560px}
      .cover-card{right:0}
      .steps{grid-template-columns:1fr 1fr}
      .proof-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .section{padding:58px 0}
      .nav{height:66px}
      .nav-links,.nav-actions .btn{display:none}
      .menu-toggle{display:grid;place-items:center}
      .nav-links.is-open{
        display:grid;position:absolute;left:14px;right:14px;top:76px;
        padding:16px;background:rgba(26,16,36,.98);border:1px solid rgba(255,255,255,.12);
        border-radius:22px;box-shadow:var(--shadow-dark)
      }
      .nav-links.is-open a{padding:13px 14px}
      .hero{min-height:auto;padding:112px 0 66px}
      .hero-buttons .btn{width:100%}
      .archive-board{min-height:auto;display:grid;gap:16px}
      .cover-card,.float-note,.update-chip{position:relative;left:auto;right:auto;top:auto;bottom:auto;width:100%}
      .cover-card img{height:320px}
      .notice{align-items:flex-start;padding:18px}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .feature-bars,.steps,.form-grid{grid-template-columns:1fr}
      .cms-card{flex-direction:column}
      .cms-cover{width:100%;height:180px}
      .timeline-item{grid-template-columns:1fr}
      .showcase-visual,.showcase-visual img{min-height:360px;height:360px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      .logo-text{font-size:15px;max-width:220px;line-height:1.25}
      .hero-subtitle{font-size:16px}
      .feature-intro,.cta-panel{padding:24px}
      .section-title,.cta-copy h2{font-size:26px}
      .proof-card,.summary-card,.feature-bar{padding:20px}
      .keyword-strip span{font-size:12px}
    }

/* roulang page: article */
:root{
      --ink:#1A1024;
      --ink-2:#0F0C14;
      --panel:#17111D;
      --berry:#8B3A62;
      --berry-2:#A34D75;
      --apricot:#F2B8A2;
      --cream:#FFF8F2;
      --card:#FFF8F5;
      --text:#2B2130;
      --muted:#746778;
      --muted-light:#C9B7C8;
      --line:rgba(255,255,255,.12);
      --line-dark:rgba(60,35,55,.14);
      --shadow:0 18px 50px rgba(28,10,28,.16);
      --shadow-dark:0 24px 70px rgba(0,0,0,.35);
      --radius:24px;
      --radius-sm:16px;
      --container:1200px;
      --ease:all .28s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      line-height:1.75;
      color:var(--text);
      background:var(--cream);
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(139,58,98,.22);color:var(--ink)}
    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .section{padding:82px 0;position:relative}
    .section-dark{background:linear-gradient(180deg,var(--ink-2),var(--ink));color:#fff}
    .section-title{font-size:clamp(26px,3vw,34px);line-height:1.22;font-weight:800;letter-spacing:-.02em;margin:0}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      margin-bottom:14px;padding:7px 12px;border-radius:999px;
      color:var(--berry);background:rgba(139,58,98,.09);
      font-size:13px;font-weight:800;letter-spacing:.04em;
    }
    .section-dark .section-kicker{color:var(--apricot);background:rgba(242,184,162,.12);border:1px solid rgba(242,184,162,.18)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px}
    .section-head p{max-width:650px;color:var(--muted);font-size:16px;margin:0}
    .section-dark .section-head p{color:var(--muted-light)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:13px 22px;border-radius:999px;
      font-weight:800;line-height:1;border:1px solid transparent;
      transition:var(--ease);white-space:nowrap;
    }
    .btn .arrow{transition:transform .28s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:hover .arrow{transform:translateX(3px)}
    .btn:focus-visible,.nav-links a:focus-visible,.menu-toggle:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{
      outline:3px solid rgba(242,184,162,.45);
      outline-offset:3px;
    }
    .btn-primary{background:var(--berry);color:#fff;box-shadow:0 12px 28px rgba(139,58,98,.28)}
    .btn-primary:hover{background:var(--berry-2);box-shadow:0 18px 36px rgba(139,58,98,.36);color:#fff}
    .btn-secondary{background:rgba(255,248,245,.92);color:var(--berry);border-color:rgba(139,58,98,.26)}
    .btn-secondary:hover{border-color:var(--apricot);box-shadow:0 12px 26px rgba(242,184,162,.22);color:var(--berry)}
    .btn-ghost{background:transparent;color:var(--apricot);border-color:rgba(242,184,162,.35)}
    .btn-ghost:hover{background:rgba(242,184,162,.1);border-color:var(--apricot);color:var(--apricot)}
    .badge,.tag{
      display:inline-flex;align-items:center;gap:6px;border-radius:999px;
      padding:6px 11px;font-size:12px;font-weight:800;line-height:1.2;
    }
    .badge{background:rgba(242,184,162,.16);color:var(--apricot);border:1px solid rgba(242,184,162,.22)}
    .tag{background:rgba(139,58,98,.1);color:var(--berry)}
    .site-header{
      position:fixed;top:0;left:0;right:0;z-index:50;
      background:linear-gradient(180deg,rgba(15,12,20,.92),rgba(15,12,20,.58));
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(16px);
      transition:var(--ease);
    }
    .site-header.is-scrolled{background:rgba(26,16,36,.96);box-shadow:0 12px 34px rgba(0,0,0,.2)}
    .nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .logo{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900;letter-spacing:-.02em}
    .logo:hover{color:#fff;opacity:.92}
    .logo-mark{
      width:40px;height:40px;border-radius:14px;
      background:linear-gradient(135deg,var(--berry),var(--apricot));
      box-shadow:0 12px 30px rgba(139,58,98,.32);
      position:relative;flex:none;
    }
    .logo-mark:before{content:"";position:absolute;left:12px;top:8px;width:15px;height:24px;border-radius:2px;background:rgba(255,255,255,.86)}
    .logo-mark:after{content:"";position:absolute;right:9px;top:10px;width:2px;height:20px;background:rgba(26,16,36,.35)}
    .logo-text{font-size:17px}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{
      color:rgba(255,255,255,.78);font-size:14px;font-weight:700;
      padding:10px 13px;border-radius:999px;
    }
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.1)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.12)
    }

    .article-hero{
      padding:132px 0 74px;
      color:#fff;
      background:
        radial-gradient(circle at 22% 24%,rgba(139,58,98,.46),transparent 34%),
        radial-gradient(circle at 82% 28%,rgba(242,184,162,.18),transparent 30%),
        linear-gradient(135deg,rgba(15,12,20,.92),rgba(26,16,36,.95)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      position:relative;
      overflow:hidden;
    }
    .article-hero:before{
      content:"";position:absolute;inset:0;
      background:linear-gradient(90deg,rgba(15,12,20,.91),rgba(15,12,20,.62) 58%,rgba(15,12,20,.86));
      pointer-events:none;
    }
    .article-hero:after{
      content:"";position:absolute;left:0;right:0;bottom:-1px;height:80px;
      background:linear-gradient(180deg,transparent,var(--cream));
      pointer-events:none;
    }
    .article-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:46px;align-items:end}
    .breadcrumb{
      display:flex;flex-wrap:wrap;align-items:center;gap:8px;
      margin:0 0 22px;padding:0;list-style:none;
      font-size:13px;color:rgba(255,255,255,.68);
    }
    .breadcrumb a{color:rgba(255,255,255,.76)}
    .breadcrumb a:hover{color:var(--apricot);text-decoration:underline;text-underline-offset:4px}
    .breadcrumb .split{opacity:.52}
    .article-title{
      max-width:850px;
      font-size:clamp(32px,5vw,54px);
      line-height:1.15;
      font-weight:900;
      letter-spacing:-.04em;
      margin:0 0 20px;
    }
    .article-lead{
      max-width:760px;
      color:rgba(255,255,255,.78);
      font-size:17px;
      line-height:1.85;
      margin:0;
    }
    .meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .meta-pill{
      display:inline-flex;align-items:center;gap:7px;
      color:rgba(255,255,255,.82);
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.13);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:700;
    }
    .hero-note{
      border:1px solid rgba(255,255,255,.14);
      border-radius:28px;
      padding:24px;
      background:rgba(23,17,29,.72);
      box-shadow:var(--shadow-dark);
      backdrop-filter:blur(12px);
    }
    .hero-note img{
      width:100%;
      height:190px;
      object-fit:cover;
      border-radius:20px;
      margin-bottom:18px;
      opacity:.92;
    }
    .hero-note h2{font-size:20px;font-weight:900;margin:0 0 10px}
    .hero-note p{color:rgba(255,255,255,.74);margin:0 0 16px;font-size:14px}
    .notice-strip{
      position:relative;
      margin-top:-28px;
      z-index:3;
    }
    .notice-box{
      display:flex;align-items:flex-start;gap:16px;
      padding:20px 22px;
      border-radius:22px;
      background:linear-gradient(135deg,rgba(255,248,245,.98),rgba(255,241,232,.96));
      border:1px solid rgba(139,58,98,.14);
      box-shadow:var(--shadow);
    }
    .notice-icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;flex:none;
      color:var(--berry);background:rgba(139,58,98,.11);
      font-weight:900;
    }
    .notice-box strong{display:block;color:var(--ink);margin-bottom:3px}
    .notice-box p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}

    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,800px) minmax(280px,1fr);
      gap:42px;
      align-items:start;
    }
    .article-main{
      min-width:0;
    }
    .cover-frame{
      border-radius:28px;
      overflow:hidden;
      box-shadow:var(--shadow);
      border:1px solid rgba(60,35,55,.12);
      background:var(--card);
      margin-bottom:28px;
      position:relative;
    }
    .cover-frame img{
      width:100%;
      height:360px;
      object-fit:cover;
    }
    .cover-frame .cover-caption{
      position:absolute;left:22px;bottom:20px;
      padding:8px 12px;border-radius:999px;
      background:rgba(26,16,36,.72);
      color:#fff;
      font-size:12px;
      font-weight:800;
      backdrop-filter:blur(10px);
    }
    .reader-card{
      background:#fff;
      border:1px solid var(--line-dark);
      border-radius:30px;
      box-shadow:var(--shadow);
      padding:42px;
    }
    .article-content{
      font-size:18px;
      line-height:1.92;
      color:#312639;
      word-break:break-word;
    }
    .article-content p{margin:0 0 1.15em}
    .article-content h2{
      font-size:clamp(24px,3vw,30px);
      line-height:1.32;
      font-weight:900;
      color:var(--ink);
      margin:2.1em 0 .8em;
      padding-left:16px;
      border-left:5px solid var(--berry);
    }
    .article-content h3{
      font-size:22px;
      line-height:1.4;
      font-weight:850;
      color:var(--ink);
      margin:1.7em 0 .65em;
    }
    .article-content a{
      color:var(--berry);
      font-weight:700;
      text-decoration:underline;
      text-underline-offset:4px;
      text-decoration-thickness:1px;
    }
    .article-content a:hover{color:var(--apricot)}
    .article-content blockquote{
      margin:1.6em 0;
      padding:20px 22px;
      border-left:5px solid var(--berry);
      border-radius:0 18px 18px 0;
      background:rgba(139,58,98,.08);
      color:#4c3b54;
    }
    .article-content ul,.article-content ol{padding-left:1.35em;margin:1em 0 1.2em}
    .article-content li{margin:.45em 0}
    .article-content img{
      margin:1.7em auto;
      border-radius:18px;
      box-shadow:0 14px 34px rgba(28,10,28,.13);
    }
    .article-content hr{
      border:0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(139,58,98,.28),transparent);
      margin:2.2em 0;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:1.6em 0;
      border:1px solid rgba(60,35,55,.14);
      border-radius:16px;
      overflow:hidden;
      font-size:15px;
    }
    .article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid rgba(60,35,55,.11)}
    .article-content th{background:rgba(139,58,98,.08);color:var(--ink);font-weight:850}
    .article-content tr:last-child td{border-bottom:0}
    .empty-content{
      text-align:center;
      padding:58px 22px;
      border:1px dashed rgba(139,58,98,.35);
      background:rgba(139,58,98,.05);
      border-radius:24px;
    }
    .empty-content h2{font-size:28px;font-weight:900;color:var(--ink);margin:0 0 10px}
    .empty-content p{color:var(--muted);margin:0 0 24px}
    .article-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      justify-content:space-between;
      margin-top:26px;
      padding-top:24px;
      border-top:1px solid rgba(60,35,55,.12);
    }
    .article-actions .hint{color:var(--muted);font-size:14px}

    .sidebar{
      position:sticky;
      top:96px;
      display:grid;
      gap:18px;
    }
    .side-card{
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line-dark);
      box-shadow:0 14px 38px rgba(28,10,28,.1);
      padding:24px;
    }
    .side-card.dark{
      color:#fff;
      background:linear-gradient(145deg,var(--ink),var(--panel));
      border-color:rgba(255,255,255,.11);
      box-shadow:var(--shadow-dark);
      overflow:hidden;
      position:relative;
    }
    .side-card.dark:before{
      content:"";position:absolute;right:-70px;top:-70px;width:150px;height:150px;
      border-radius:50%;background:rgba(242,184,162,.14);
    }
    .side-card h2,.side-card h3{
      font-size:19px;
      font-weight:900;
      margin:0 0 12px;
      position:relative;
    }
    .side-card p{color:var(--muted);font-size:14px;margin:0}
    .side-card.dark p{color:rgba(255,255,255,.72)}
    .info-list{display:grid;gap:10px;margin-top:16px}
    .info-item{
      display:flex;justify-content:space-between;gap:14px;
      padding:11px 0;
      border-top:1px solid rgba(60,35,55,.1);
      font-size:14px;
    }
    .info-item span:first-child{color:var(--muted)}
    .info-item span:last-child{font-weight:800;color:var(--ink);text-align:right}
    .related-list{display:grid;gap:12px;margin-top:14px}
    .related-link{
      display:block;
      padding:14px;
      border-radius:16px;
      border:1px solid rgba(60,35,55,.12);
      background:rgba(255,248,245,.72);
    }
    .related-link:hover{
      border-color:rgba(139,58,98,.35);
      transform:translateY(-2px);
      box-shadow:0 12px 24px rgba(28,10,28,.1);
    }
    .related-link strong{
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
      color:var(--ink);
      line-height:1.45;
      font-size:15px;
    }
    .related-link small{display:block;margin-top:6px;color:var(--muted);font-size:12px}
    .mini-empty{
      border-radius:16px;
      border:1px dashed rgba(139,58,98,.28);
      background:rgba(139,58,98,.05);
      padding:14px;
      color:var(--muted);
      font-size:13px;
      margin-top:14px;
    }

    .guide-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .guide-card{
      background:#fff;
      border:1px solid var(--line-dark);
      border-radius:24px;
      padding:24px;
      box-shadow:0 14px 38px rgba(28,10,28,.09);
      transition:var(--ease);
    }
    .guide-card:hover{transform:translateY(-4px);border-color:rgba(139,58,98,.34);box-shadow:var(--shadow)}
    .guide-num{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;background:linear-gradient(135deg,var(--berry),var(--apricot));
      font-weight:900;margin-bottom:16px;
    }
    .guide-card h3{font-size:20px;font-weight:900;margin:0 0 8px;color:var(--ink)}
    .guide-card p{color:var(--muted);margin:0;font-size:15px}

    .faq-wrap{max-width:920px;margin:0 auto}
    .faq-item{
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.12);
      border-radius:20px;
      margin-bottom:14px;
      overflow:hidden;
      transition:var(--ease);
    }
    .faq-item:hover{border-color:rgba(242,184,162,.34)}
    .faq-q{
      width:100%;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:20px 22px;
      color:#fff;
      background:transparent;
      text-align:left;
      font-weight:900;
    }
    .faq-icon{transition:transform .28s ease;color:var(--apricot);font-size:22px;line-height:1}
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .32s ease;
    }
    .faq-a p{
      margin:0;
      padding:0 22px 20px;
      color:var(--muted-light);
      font-size:15px;
      border-top:1px solid rgba(255,255,255,.08);
      padding-top:16px;
    }
    .faq-item.open{background:rgba(255,255,255,.085)}
    .faq-item.open .faq-icon{transform:rotate(45deg)}
    .faq-item.open .faq-a{max-height:180px}

    .feedback-section{
      background:
        radial-gradient(circle at 12% 20%,rgba(139,58,98,.12),transparent 28%),
        radial-gradient(circle at 88% 28%,rgba(242,184,162,.2),transparent 27%),
        var(--cream);
    }
    .feedback-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:start;
    }
    .cta-card{
      border-radius:30px;
      padding:34px;
      background:linear-gradient(145deg,var(--ink),var(--panel));
      color:#fff;
      box-shadow:var(--shadow-dark);
      overflow:hidden;
      position:relative;
    }
    .cta-card:before{
      content:"";position:absolute;right:-90px;bottom:-90px;width:210px;height:210px;
      border-radius:50%;background:rgba(242,184,162,.13);
    }
    .cta-card h2{font-size:30px;font-weight:900;line-height:1.25;margin:0 0 12px;position:relative}
    .cta-card p{color:rgba(255,255,255,.72);margin:0 0 22px;position:relative}
    .feedback-form{
      background:#fff;
      border:1px solid var(--line-dark);
      border-radius:30px;
      box-shadow:var(--shadow);
      padding:30px;
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .form-field{display:grid;gap:7px;margin-bottom:16px}
    .form-field.full{grid-column:1/-1}
    .form-field label{font-size:13px;font-weight:900;color:var(--ink)}
    .form-field input,.form-field select,.form-field textarea{
      width:100%;
      border:1px solid rgba(60,35,55,.16);
      background:rgba(255,248,242,.68);
      border-radius:16px;
      padding:13px 14px;
      color:var(--text);
      outline:0;
      transition:var(--ease);
    }
    .form-field textarea{min-height:120px;resize:vertical}
    .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
      border-color:var(--berry);
      box-shadow:0 0 0 4px rgba(139,58,98,.12);
      background:#fff;
    }
    .form-tip{font-size:13px;color:var(--muted);margin:0 0 16px}

    .site-footer{
      background:linear-gradient(180deg,var(--ink),var(--ink-2));
      color:#fff;
      padding:62px 0 24px;
      position:relative;
      overflow:hidden;
    }
    .site-footer:before{
      content:"";position:absolute;left:-90px;top:-90px;width:240px;height:240px;
      border-radius:50%;background:rgba(139,58,98,.18);
    }
    .footer-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.35fr .75fr 1fr 1fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand p,.footer-col p{color:rgba(255,255,255,.66);font-size:14px;margin:16px 0 0}
    .footer-col h3{font-size:16px;font-weight:900;margin:0 0 14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.68);font-size:14px}
    .footer-links a:hover{color:var(--apricot);text-decoration:underline;text-underline-offset:4px}
    .footer-bottom{
      position:relative;
      display:flex;justify-content:space-between;align-items:center;gap:18px;
      padding-top:22px;
      color:rgba(255,255,255,.58);
      font-size:13px;
    }
    .backtop{color:var(--apricot);font-weight:800}
    .backtop:hover{transform:translateY(-2px);color:#fff}

    @media (max-width:1024px){
      .article-hero-inner{grid-template-columns:1fr;gap:28px}
      .hero-note{max-width:560px}
      .article-layout{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .guide-grid{grid-template-columns:1fr 1fr}
      .feedback-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .section{padding:58px 0}
      .nav{height:68px}
      .nav-links{
        position:absolute;left:14px;right:14px;top:76px;
        display:none;flex-direction:column;align-items:stretch;gap:8px;
        padding:14px;
        border:1px solid rgba(255,255,255,.12);
        border-radius:22px;
        background:rgba(26,16,36,.98);
        box-shadow:var(--shadow-dark);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{padding:13px 15px}
      .menu-toggle{display:grid;place-items:center}
      .nav-actions .btn{display:none}
      .article-hero{padding:112px 0 62px}
      .article-title{letter-spacing:-.03em}
      .notice-box{align-items:flex-start;padding:18px}
      .reader-card{padding:26px 20px;border-radius:24px}
      .article-content{font-size:17px;line-height:1.9}
      .cover-frame img{height:260px}
      .sidebar{grid-template-columns:1fr}
      .guide-grid{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
      .section-head{display:block}
      .section-head p{margin-top:10px}
    }
    @media (max-width:520px){
      .logo-text{font-size:15px;max-width:190px;line-height:1.25}
      .article-hero{padding-top:104px}
      .meta-row{gap:8px}
      .meta-pill{font-size:12px;padding:7px 10px}
      .hero-note{padding:18px;border-radius:22px}
      .hero-note img{height:150px}
      .notice-strip{margin-top:-18px}
      .article-actions{display:grid;gap:14px}
      .article-actions .btn{width:100%}
      .feedback-form,.cta-card{padding:22px;border-radius:24px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}