/* roulang page: index */
:root{
      --obsidian:#121014;
      --obsidian-2:#1c171d;
      --berry:#7B2D5B;
      --berry-2:#642049;
      --copper:#D9A06F;
      --mist:#F6F0EC;
      --paper:#fffaf7;
      --ink:#252127;
      --muted:#7B7178;
      --light:#F8F1EC;
      --line-dark:rgba(255,255,255,.12);
      --line-light:rgba(18,16,20,.10);
      --shadow:0 18px 60px rgba(18,16,20,.18);
      --shadow-soft:0 14px 40px rgba(18,16,20,.10);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:18px;
      --radius-pill:999px;
      --container:1220px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--mist);
      line-height:1.75;
      min-width:320px;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer;background:none}
    ::selection{background:rgba(123,45,91,.22)}
    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .skip-link{
      position:absolute;left:16px;top:-80px;z-index:2000;
      background:var(--copper);color:var(--obsidian);padding:10px 16px;border-radius:var(--radius-pill);
      transition:top .2s var(--ease);font-weight:700;
    }
    .skip-link:focus{top:16px;outline:3px solid rgba(255,255,255,.7)}
    .site-header{
      position:sticky;top:0;z-index:1000;
      background:rgba(18,16,20,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line-dark);
    }
    .nav-wrap{
      min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;color:var(--light);
      font-weight:800;letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;flex:0 0 auto;
      color:var(--obsidian);font-weight:900;font-size:14px;
      background:linear-gradient(135deg,var(--copper),#f1c99d);
      box-shadow:0 10px 30px rgba(217,160,111,.22);
    }
    .brand-text{
      display:flex;flex-direction:column;line-height:1.2;
      white-space:normal;
    }
    .brand-text strong{font-size:16px;max-width:330px}
    .brand-text span{font-size:12px;color:rgba(248,241,236,.68);font-weight:600;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:6px}
    .desktop-nav a{
      color:rgba(248,241,236,.78);font-size:14px;font-weight:700;
      padding:10px 14px;border-radius:var(--radius-pill);
      transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
    }
    .desktop-nav a:hover,.desktop-nav a.active{
      color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:13px 23px;border-radius:var(--radius-pill);
      font-weight:800;font-size:14px;letter-spacing:.01em;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
      user-select:none;
    }
    .btn-primary{
      color:var(--light);background:linear-gradient(135deg,var(--berry),var(--berry-2));
      box-shadow:0 14px 34px rgba(123,45,91,.32);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(123,45,91,.42);background:linear-gradient(135deg,#8e3469,var(--berry-2))}
    .btn-secondary{
      color:var(--light);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06)
    }
    .btn-secondary:hover{transform:translateY(-2px);background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.36)}
    .btn-light{
      color:var(--obsidian);background:var(--paper);border:1px solid rgba(18,16,20,.08)
    }
    .btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .btn:focus-visible,.desktop-nav a:focus-visible,.mobile-toggle:focus-visible,.faq-question:focus-visible,.card-link:focus-visible,.news-card:focus-visible{
      outline:3px solid rgba(217,160,111,.75);outline-offset:3px;
    }
    .mobile-toggle{
      display:none;width:46px;height:46px;border-radius:16px;
      border:1px solid var(--line-dark);color:var(--light);background:rgba(255,255,255,.06);
      align-items:center;justify-content:center;
    }
    .mobile-toggle span,.mobile-toggle span::before,.mobile-toggle span::after{
      content:"";display:block;width:20px;height:2px;background:currentColor;border-radius:8px;transition:.22s var(--ease)
    }
    .mobile-toggle span::before{transform:translateY(-7px)}
    .mobile-toggle span::after{transform:translateY(5px)}
    .mobile-toggle.is-open span{background:transparent}
    .mobile-toggle.is-open span::before{transform:translateY(0) rotate(45deg);background:var(--light)}
    .mobile-toggle.is-open span::after{transform:translateY(-2px) rotate(-45deg);background:var(--light)}
    .mobile-panel{
      display:none;border-top:1px solid var(--line-dark);background:rgba(18,16,20,.98);
      padding:16px 0 22px;
    }
    .mobile-panel a{
      display:flex;align-items:center;min-height:48px;color:var(--light);
      border-radius:16px;padding:10px 14px;font-weight:800;
    }
    .mobile-panel a:hover{background:rgba(255,255,255,.08)}
    .mobile-panel .btn{margin-top:12px;width:100%}
    main{background:var(--mist)}
    .hero{
      position:relative;min-height:calc(100vh - 76px);display:flex;align-items:center;
      color:var(--light);overflow:hidden;background:var(--obsidian);
    }
    .hero::before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(18,16,20,.94) 0%,rgba(18,16,20,.75) 44%,rgba(18,16,20,.32) 100%),
        radial-gradient(circle at 26% 24%,rgba(123,45,91,.45),transparent 34%),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      transform:scale(1.02);
    }
    .hero::after{
      content:"";position:absolute;inset:auto -10% -28% -10%;height:45%;
      background:radial-gradient(circle at center,rgba(217,160,111,.18),transparent 64%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);
      gap:54px;align-items:center;padding:92px 0 72px;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:10px;
      border:1px solid rgba(217,160,111,.42);
      background:rgba(217,160,111,.12);
      color:#ffe2c2;border-radius:var(--radius-pill);
      padding:8px 13px;font-size:13px;font-weight:800;
      margin-bottom:22px;
    }
    .eyebrow b{
      background:var(--copper);color:var(--obsidian);
      padding:2px 8px;border-radius:var(--radius-pill);font-size:12px;
    }
    h1{
      font-size:clamp(36px,5.25vw,66px);
      line-height:1.1;letter-spacing:-.055em;
      max-width:820px;
      color:#fff;
    }
    .hero-sub{
      max-width:690px;margin-top:22px;color:rgba(248,241,236,.78);
      font-size:17px;line-height:1.9;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
    .hero-note{
      margin-top:22px;color:rgba(248,241,236,.6);font-size:13px;
      display:flex;align-items:center;gap:9px;flex-wrap:wrap;
    }
    .dot{width:7px;height:7px;border-radius:50%;background:var(--copper);box-shadow:0 0 0 6px rgba(217,160,111,.14)}
    .showcase{
      position:relative;border:1px solid rgba(255,255,255,.16);
      border-radius:34px;overflow:hidden;box-shadow:0 34px 90px rgba(0,0,0,.35);
      background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.03));
      min-height:520px;
    }
    .showcase img{
      width:100%;height:520px;object-fit:cover;filter:saturate(.92) contrast(1.05);
      opacity:.88;
    }
    .showcase-overlay{
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(18,16,20,.08),rgba(18,16,20,.86));
    }
    .showcase-card{
      position:absolute;left:22px;right:22px;bottom:22px;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(18,16,20,.72);backdrop-filter:blur(14px);
      border-radius:24px;padding:22px;
    }
    .showcase-card .badge-row{margin-bottom:14px}
    .showcase-card h2{
      font-size:24px;line-height:1.28;color:#fff;margin-bottom:8px;
    }
    .showcase-card p{color:rgba(248,241,236,.72);font-size:14px}
    .badge-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      min-height:28px;padding:5px 10px;border-radius:var(--radius-pill);
      font-size:12px;font-weight:800;line-height:1;
    }
    .badge-copper{background:rgba(217,160,111,.16);border:1px solid rgba(217,160,111,.38);color:#ffd9b4}
    .badge-berry{background:rgba(123,45,91,.12);border:1px solid rgba(123,45,91,.24);color:#7B2D5B}
    .badge-dark{background:rgba(18,16,20,.08);border:1px solid rgba(18,16,20,.12);color:var(--ink)}
    .info-strip{
      position:relative;z-index:2;margin-top:-44px;
    }
    .strip-inner{
      display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
      overflow:hidden;border-radius:var(--radius-xl);
      background:rgba(18,16,20,.10);box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.54);
    }
    .strip-item{
      background:rgba(255,250,247,.92);padding:24px 22px;
    }
    .strip-item strong{display:block;color:var(--obsidian);font-size:20px;letter-spacing:-.02em}
    .strip-item span{display:block;margin-top:5px;color:var(--muted);font-size:13px;font-weight:700}
    .section{padding:94px 0}
    .section-soft{background:var(--mist)}
    .section-paper{background:var(--paper)}
    .section-dark{
      color:var(--light);background:
        radial-gradient(circle at 78% 12%,rgba(123,45,91,.32),transparent 34%),
        radial-gradient(circle at 8% 82%,rgba(217,160,111,.16),transparent 32%),
        var(--obsidian);
    }
    .section-head{max-width:760px;margin-bottom:38px}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--berry);font-weight:900;font-size:13px;
      letter-spacing:.08em;margin-bottom:12px;
    }
    .section-kicker::before{
      content:"";width:28px;height:2px;background:var(--copper);border-radius:10px;
    }
    .section-dark .section-kicker{color:#ffd9b4}
    .section-title{
      font-size:clamp(28px,3.5vw,42px);line-height:1.2;letter-spacing:-.04em;color:var(--ink);
    }
    .section-dark .section-title{color:#fff}
    .section-desc{
      margin-top:14px;color:var(--muted);font-size:16px;max-width:720px;
    }
    .section-dark .section-desc{color:rgba(248,241,236,.72)}
    .guide-layout{
      display:grid;grid-template-columns:.88fr 1.12fr;gap:46px;align-items:start;
    }
    .guide-panel{
      position:sticky;top:104px;border-radius:var(--radius-xl);
      padding:34px;background:linear-gradient(145deg,#fffaf7,#f1e7e1);
      border:1px solid rgba(18,16,20,.08);box-shadow:var(--shadow-soft);
    }
    .guide-panel p{color:var(--muted);margin-top:14px}
    .mini-list{margin-top:24px;display:grid;gap:12px}
    .mini-list li{
      list-style:none;display:flex;gap:12px;align-items:flex-start;
      padding:13px 14px;border-radius:18px;background:rgba(255,255,255,.72);
      border:1px solid rgba(18,16,20,.07);
      color:var(--ink);font-weight:700;font-size:14px;
    }
    .mini-list li i{
      width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
      background:rgba(123,45,91,.12);color:var(--berry);font-style:normal;flex:0 0 auto;
    }
    .guide-cards{
      display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;
    }
    .guide-card{
      background:#fff;border:1px solid rgba(18,16,20,.08);border-radius:var(--radius-lg);
      padding:26px;box-shadow:0 10px 30px rgba(18,16,20,.06);
      transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
    }
    .guide-card:hover{
      transform:translateY(-5px);border-color:rgba(123,45,91,.38);box-shadow:var(--shadow-soft);
    }
    .guide-num{
      display:inline-flex;align-items:center;justify-content:center;
      width:36px;height:36px;border-radius:14px;
      background:rgba(217,160,111,.18);color:#8a5631;font-weight:900;margin-bottom:18px;
    }
    .guide-card h3{font-size:20px;line-height:1.35;margin-bottom:9px;letter-spacing:-.02em}
    .guide-card p{color:var(--muted);font-size:15px}
    .feature-layout{
      display:grid;grid-template-columns:1.15fr .85fr;gap:20px;
    }
    .cover-card{
      position:relative;overflow:hidden;border-radius:var(--radius-xl);
      min-height:320px;color:#fff;box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.16);
      background:var(--obsidian);
    }
    .cover-card.small{min-height:250px;border-radius:24px}
    .cover-card img{
      position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
      transition:transform .45s var(--ease),filter .45s var(--ease);
    }
    .cover-card::after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(18,16,20,.16),rgba(18,16,20,.88));
      transition:background .3s var(--ease);
    }
    .cover-content{
      position:absolute;inset:auto 0 0 0;z-index:1;padding:28px;
    }
    .cover-card.wide .cover-content{padding:34px;max-width:760px}
    .cover-content h3{
      font-size:clamp(22px,2.7vw,34px);line-height:1.18;margin:14px 0 10px;letter-spacing:-.035em;
      transition:color .22s var(--ease);
    }
    .cover-card.small .cover-content h3{font-size:21px}
    .cover-content p{color:rgba(248,241,236,.74);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .cover-meta{margin-top:14px;color:#ffd9b4;font-size:13px;font-weight:800}
    .cover-card:hover img{transform:scale(1.045);filter:saturate(1.05) contrast(1.08)}
    .cover-card:hover::after{background:linear-gradient(180deg,rgba(18,16,20,.22),rgba(18,16,20,.94))}
    .cover-card:hover h3{color:#ffd9b4}
    .feature-side{display:grid;grid-template-columns:1fr;gap:20px}
    .latest-grid{
      display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:26px;align-items:start;
    }
    .news-list{display:grid;gap:14px}
    .news-card{
      display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;
      padding:22px;border-radius:22px;background:#fff;border:1px solid rgba(18,16,20,.08);
      box-shadow:0 8px 28px rgba(18,16,20,.055);
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
    }
    .news-card:hover{
      transform:translateY(-3px);box-shadow:var(--shadow-soft);border-color:rgba(123,45,91,.28)
    }
    .news-main h3{
      font-size:19px;line-height:1.4;margin:10px 0 8px;letter-spacing:-.02em;
      transition:color .22s var(--ease);
    }
    .news-card:hover h3{color:var(--berry)}
    .news-main p{
      color:var(--muted);font-size:15px;line-height:1.7;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .news-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
    .time-pill{
      color:#8a5631;background:rgba(217,160,111,.17);
      border:1px solid rgba(217,160,111,.28);
      padding:4px 9px;border-radius:var(--radius-pill);
      font-size:12px;font-weight:900;
    }
    .read-arrow{
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      background:rgba(123,45,91,.10);color:var(--berry);font-weight:900;
      transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
    }
    .news-card:hover .read-arrow{background:var(--berry);color:#fff;transform:translateX(2px)}
    .side-panel{
      position:sticky;top:104px;border-radius:var(--radius-xl);padding:28px;
      background:var(--obsidian);color:var(--light);
      border:1px solid var(--line-dark);box-shadow:var(--shadow);
      overflow:hidden;
    }
    .side-panel::before{
      content:"";position:absolute;inset:-30% -30% auto auto;width:220px;height:220px;border-radius:50%;
      background:rgba(123,45,91,.4);filter:blur(34px);
    }
    .side-panel > *{position:relative;z-index:1}
    .side-panel h3{font-size:22px;line-height:1.25;margin:14px 0 10px}
    .side-panel p{color:rgba(248,241,236,.72);font-size:15px}
    .notice-list{margin-top:20px;display:grid;gap:12px}
    .notice-list li{
      list-style:none;padding-left:22px;position:relative;color:rgba(248,241,236,.78);font-size:14px;
    }
    .notice-list li::before{
      content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--copper)
    }
    .empty-card{
      padding:34px;border-radius:24px;background:#fff;border:1px dashed rgba(123,45,91,.38);
      text-align:center;box-shadow:var(--shadow-soft);
    }
    .empty-icon{
      width:62px;height:62px;border-radius:22px;margin:0 auto 16px;
      display:grid;place-items:center;background:rgba(123,45,91,.10);color:var(--berry);font-size:26px;
    }
    .empty-card h3{font-size:22px;margin-bottom:8px}
    .empty-card p{color:var(--muted);margin-bottom:18px}
    .experience-banner{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:center;
      border-radius:34px;padding:42px;
      background:
        linear-gradient(135deg,rgba(18,16,20,.93),rgba(18,16,20,.78)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.13);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .experience-banner h2{
      font-size:clamp(28px,3.4vw,42px);line-height:1.2;color:#fff;letter-spacing:-.04em;
    }
    .experience-banner p{margin-top:14px;color:rgba(248,241,236,.72)}
    .experience-points{
      display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
    }
    .point{
      min-height:150px;border-radius:22px;padding:22px;
      background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);
      color:var(--light);
    }
    .point strong{display:block;color:#ffd9b4;font-size:28px;line-height:1;margin-bottom:14px}
    .point h3{font-size:17px;margin-bottom:7px}
    .point span{color:rgba(248,241,236,.64);font-size:13px;line-height:1.6}
    .proof-grid{
      display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
    }
    .proof-card{
      padding:26px;border-radius:24px;background:#fff;border:1px solid rgba(18,16,20,.08);
      box-shadow:0 10px 28px rgba(18,16,20,.055);
    }
    .proof-card h3{font-size:20px;margin-bottom:10px}
    .proof-card p{color:var(--muted);font-size:15px}
    .proof-card .proof-top{
      display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;
    }
    .proof-icon{
      width:44px;height:44px;border-radius:16px;display:grid;place-items:center;
      background:rgba(123,45,91,.10);color:var(--berry);font-weight:900;
    }
    .faq-wrap{display:grid;gap:14px;max-width:940px;margin:0 auto}
    .faq-item{
      background:#fff;border:1px solid rgba(18,16,20,.08);border-radius:22px;overflow:hidden;
      box-shadow:0 8px 24px rgba(18,16,20,.045);
    }
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:68px;text-align:left;padding:20px 24px;color:var(--ink);font-weight:900;font-size:17px;
    }
    .faq-question .plus{
      width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
      background:rgba(123,45,91,.10);color:var(--berry);flex:0 0 auto;
      transition:transform .22s var(--ease),background .22s var(--ease);
    }
    .faq-answer{
      max-height:0;overflow:hidden;transition:max-height .24s var(--ease);
      border-left:4px solid transparent;
    }
    .faq-answer p{padding:0 24px 22px 24px;color:var(--muted);font-size:15px}
    .faq-item.is-open{border-color:rgba(123,45,91,.24)}
    .faq-item.is-open .faq-answer{max-height:220px;border-left-color:var(--berry)}
    .faq-item.is-open .plus{transform:rotate(45deg);background:var(--berry);color:#fff}
    .bottom-cta{
      position:relative;overflow:hidden;border-radius:38px;padding:64px 36px;text-align:center;color:#fff;
      background:
        linear-gradient(135deg,rgba(18,16,20,.94),rgba(123,45,91,.72)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.14);
    }
    .bottom-cta::after{
      content:"";position:absolute;inset:auto 10% -45% 10%;height:70%;
      background:radial-gradient(circle,rgba(217,160,111,.22),transparent 62%);
      pointer-events:none;
    }
    .bottom-cta > *{position:relative;z-index:1}
    .bottom-cta h2{
      font-size:clamp(29px,4vw,46px);line-height:1.18;letter-spacing:-.04em;max-width:820px;margin:0 auto;
    }
    .bottom-cta p{margin:16px auto 26px;max-width:700px;color:rgba(248,241,236,.78)}
    .site-footer{
      background:var(--obsidian);color:var(--light);padding:58px 0 28px;border-top:1px solid var(--line-dark);
    }
    .footer-grid{
      display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:32px;align-items:start;
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
    .footer-brand strong{font-size:17px;line-height:1.35}
    .footer-text{color:rgba(248,241,236,.66);font-size:14px;max-width:520px}
    .footer-col h3{font-size:15px;color:#fff;margin-bottom:13px}
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-links span{
      color:rgba(248,241,236,.68);font-size:14px;transition:color .22s var(--ease);
    }
    .footer-links a:hover{color:#ffd9b4}
    .copyright{
      margin-top:36px;padding-top:22px;border-top:1px solid var(--line-dark);
      color:rgba(248,241,236,.52);font-size:13px;
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .desktop-nav,.nav-actions .desktop-cta{display:none}
      .mobile-toggle{display:flex}
      .mobile-panel.is-open{display:block}
      .hero{min-height:auto}
      .hero-grid{grid-template-columns:1fr;gap:34px;padding:72px 0 82px}
      .showcase{min-height:430px}
      .showcase img{height:430px}
      .strip-inner{grid-template-columns:repeat(2,1fr)}
      .guide-layout,.latest-grid,.experience-banner{grid-template-columns:1fr}
      .guide-panel,.side-panel{position:relative;top:auto}
      .feature-layout{grid-template-columns:1fr}
      .feature-side{grid-template-columns:repeat(2,1fr)}
      .experience-points,.proof-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .nav-wrap{min-height:68px}
      .brand-text strong{font-size:14px;max-width:230px}
      .brand-text span{display:none}
      .hero-grid{padding:54px 0 70px}
      .hero-actions .btn{width:100%}
      .showcase,.showcase img{min-height:360px;height:360px}
      .showcase-card{left:14px;right:14px;bottom:14px;padding:18px;border-radius:20px}
      .showcase-card h2{font-size:21px}
      .strip-inner{border-radius:22px}
      .strip-item{padding:18px}
      .section{padding:66px 0}
      .guide-cards,.feature-side,.experience-points,.proof-grid{grid-template-columns:1fr}
      .cover-card,.cover-card.small{min-height:300px}
      .news-card{grid-template-columns:1fr;padding:20px}
      .read-arrow{width:100%;height:40px;border-radius:var(--radius-pill)}
      .experience-banner{padding:28px;border-radius:28px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      h1{font-size:36px}
      .hero-sub{font-size:15px}
      .eyebrow{font-size:12px;align-items:flex-start}
      .strip-inner{grid-template-columns:1fr}
      .section-title{font-size:29px}
      .guide-panel,.guide-card,.side-panel,.proof-card{padding:22px}
      .cover-content,.cover-card.wide .cover-content{padding:22px}
      .bottom-cta{padding:44px 22px;border-radius:28px}
      .faq-question{padding:18px;font-size:16px}
      .faq-answer p{padding:0 18px 20px}
    }

/* roulang page: article */
:root{
      --obsidian:#121014;
      --obsidian-2:#1c171d;
      --berry:#7B2D5B;
      --berry-2:#642049;
      --copper:#D9A06F;
      --mist:#F6F0EC;
      --paper:#fffaf7;
      --ink:#252127;
      --muted:#7B7178;
      --light:#F8F1EC;
      --line-dark:rgba(255,255,255,.12);
      --line-light:rgba(18,16,20,.10);
      --shadow:0 18px 60px rgba(18,16,20,.18);
      --shadow-soft:0 14px 40px rgba(18,16,20,.10);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:18px;
      --radius-pill:999px;
      --container:1220px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--mist);
      line-height:1.75;
      min-width:320px;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer;background:none}
    p,h1,h2,h3,h4,ul,ol,figure{margin-top:0}
    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:1000;
      background:rgba(18,16,20,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line-dark);
    }
    .nav-wrap{
      min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;color:var(--light);
      font-weight:800;letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;flex:0 0 auto;
      color:var(--obsidian);font-weight:900;font-size:14px;
      background:linear-gradient(135deg,var(--copper),#f1c99d);
      box-shadow:0 10px 30px rgba(217,160,111,.22);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2;white-space:normal}
    .brand-text strong{font-size:16px;max-width:330px}
    .brand-text span{font-size:12px;color:rgba(248,241,236,.68);font-weight:600;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:6px}
    .desktop-nav a{
      color:rgba(248,241,236,.78);font-size:14px;font-weight:700;
      padding:10px 14px;border-radius:var(--radius-pill);
      transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
    }
    .desktop-nav a:hover,.desktop-nav a.active{
      color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:13px 23px;border-radius:var(--radius-pill);
      font-weight:800;font-size:14px;letter-spacing:.01em;border:0;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
      user-select:none;
    }
    .btn-primary{
      color:var(--light);background:linear-gradient(135deg,var(--berry),var(--berry-2));
      box-shadow:0 14px 34px rgba(123,45,91,.32);
    }
    .btn-primary:hover{color:var(--light);transform:translateY(-2px);box-shadow:0 18px 42px rgba(123,45,91,.42);background:linear-gradient(135deg,#8e3469,var(--berry-2))}
    .btn-secondary{
      color:var(--light);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06)
    }
    .btn-secondary:hover{color:#fff;transform:translateY(-2px);background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.36)}
    .btn-light{
      color:var(--obsidian);background:var(--paper);border:1px solid rgba(18,16,20,.08)
    }
    .btn-light:hover{color:var(--obsidian);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .btn:focus-visible,.desktop-nav a:focus-visible,.mobile-toggle:focus-visible,.faq-question:focus-visible,.card-link:focus-visible,.notice-card:focus-visible,.footer-links a:focus-visible{
      outline:3px solid rgba(217,160,111,.75);outline-offset:3px;
    }
    .mobile-toggle{
      display:none;width:46px;height:46px;border-radius:16px;
      border:1px solid var(--line-dark);color:var(--light);background:rgba(255,255,255,.06);
      align-items:center;justify-content:center;
    }
    .mobile-toggle span,.mobile-toggle span::before,.mobile-toggle span::after{
      content:"";display:block;width:20px;height:2px;background:currentColor;border-radius:8px;transition:.22s var(--ease)
    }
    .mobile-toggle span::before{transform:translateY(-7px)}
    .mobile-toggle span::after{transform:translateY(5px)}
    .mobile-toggle.is-open span{background:transparent}
    .mobile-toggle.is-open span::before{transform:translateY(0) rotate(45deg);background:var(--light)}
    .mobile-toggle.is-open span::after{transform:translateY(-2px) rotate(-45deg);background:var(--light)}
    .mobile-panel{
      display:none;border-top:1px solid var(--line-dark);background:rgba(18,16,20,.98);
      padding:16px 0 22px;
    }
    .mobile-panel a{
      display:flex;align-items:center;min-height:48px;color:var(--light);
      border-radius:16px;padding:10px 14px;font-weight:800;
    }
    .mobile-panel a:hover{background:rgba(255,255,255,.08)}
    .mobile-panel .btn{margin-top:12px;width:100%}
    main{background:var(--mist)}
    .article-hero{
      position:relative;
      overflow:hidden;
      color:var(--light);
      background:var(--obsidian);
      padding:68px 0 76px;
    }
    .article-hero::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(115deg,rgba(18,16,20,.96) 0%,rgba(18,16,20,.82) 48%,rgba(18,16,20,.48) 100%),
        radial-gradient(circle at 20% 18%,rgba(123,45,91,.48),transparent 34%),
        radial-gradient(circle at 82% 22%,rgba(217,160,111,.16),transparent 30%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      transform:scale(1.02);
    }
    .article-hero::after{
      content:"";
      position:absolute;left:-8%;right:-8%;bottom:-32%;height:48%;
      background:radial-gradient(circle at center,rgba(217,160,111,.18),transparent 64%);
      pointer-events:none;
    }
    .article-hero-grid{
      position:relative;z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(320px,.72fr);
      gap:46px;
      align-items:center;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      margin:0 0 20px;
      color:rgba(248,241,236,.68);
      font-size:13px;
      font-weight:700;
    }
    .breadcrumb a{
      color:rgba(248,241,236,.82);
      padding:4px 0;
      transition:color .2s var(--ease);
    }
    .breadcrumb a:hover{color:var(--copper)}
    .breadcrumb .sep{opacity:.5}
    .breadcrumb .current{
      max-width:520px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .article-kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      border:1px solid rgba(217,160,111,.42);
      background:rgba(217,160,111,.12);
      color:#ffe2c2;
      border-radius:var(--radius-pill);
      padding:8px 13px;
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .article-kicker b{
      width:8px;height:8px;border-radius:50%;
      background:var(--copper);
      box-shadow:0 0 0 6px rgba(217,160,111,.16);
    }
    .article-title{
      font-size:clamp(32px,5vw,54px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:900;
      max-width:860px;
      margin:0 0 22px;
    }
    .article-summary{
      color:rgba(248,241,236,.76);
      font-size:17px;
      line-height:1.85;
      max-width:760px;
      margin:0 0 28px;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin:0;
      padding:0;
      list-style:none;
    }
    .meta-row li{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:34px;
      padding:7px 12px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:rgba(248,241,236,.78);
      font-size:13px;
      font-weight:800;
    }
    .meta-row .age-badge{
      color:var(--obsidian);
      background:linear-gradient(135deg,var(--copper),#f1c99d);
      border-color:transparent;
    }
    .hero-cover{
      position:relative;
      min-height:420px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.13);
      background:var(--obsidian-2);
    }
    .hero-cover img{
      width:100%;
      height:100%;
      min-height:420px;
      object-fit:cover;
      filter:saturate(.96) contrast(1.04);
      transform:scale(1.01);
    }
    .hero-cover::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(18,16,20,.08),rgba(18,16,20,.82));
    }
    .cover-caption{
      position:absolute;
      left:22px;right:22px;bottom:22px;
      z-index:2;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:16px;
      border-radius:22px;
      background:rgba(18,16,20,.72);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
    }
    .cover-caption strong{font-size:15px;color:#fff}
    .cover-caption span{font-size:12px;color:rgba(248,241,236,.68);font-weight:700}
    .section{padding:92px 0}
    .section-tight{padding:64px 0}
    .section-dark{
      background:
        radial-gradient(circle at 12% 20%,rgba(123,45,91,.24),transparent 34%),
        radial-gradient(circle at 80% 40%,rgba(217,160,111,.12),transparent 30%),
        var(--obsidian);
      color:var(--light);
    }
    .section-title{
      font-size:clamp(28px,4vw,42px);
      line-height:1.2;
      letter-spacing:-.035em;
      font-weight:900;
      margin:0 0 14px;
      color:var(--ink);
    }
    .section-dark .section-title{color:var(--light)}
    .section-lead{
      max-width:760px;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
      margin:0;
    }
    .section-dark .section-lead{color:rgba(248,241,236,.72)}
    .article-shell{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(260px,1fr);
      gap:34px;
      align-items:start;
    }
    .article-main-card{
      background:var(--paper);
      border:1px solid var(--line-light);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .read-notice{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:14px;
      padding:22px 26px;
      background:linear-gradient(135deg,rgba(123,45,91,.10),rgba(217,160,111,.12));
      border-bottom:1px solid var(--line-light);
    }
    .read-notice .icon{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      color:var(--obsidian);
      background:linear-gradient(135deg,var(--copper),#f1c99d);
      font-weight:900;
      flex:0 0 auto;
    }
    .read-notice strong{display:block;margin-bottom:4px;color:var(--ink);font-size:16px}
    .read-notice p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .article-body{
      padding:38px 42px 44px;
      font-size:17px;
      line-height:1.9;
      color:var(--ink);
      overflow-x:auto;
    }
    .article-body > *:first-child{margin-top:0}
    .article-body > *:last-child{margin-bottom:0}
    .article-body p{margin:0 0 1.15em}
    .article-body h2{
      position:relative;
      font-size:28px;
      line-height:1.3;
      font-weight:900;
      letter-spacing:-.02em;
      margin:2em 0 .75em;
      padding-left:16px;
      color:var(--ink);
    }
    .article-body h2::before{
      content:"";
      position:absolute;
      left:0;top:.2em;bottom:.2em;
      width:5px;
      border-radius:999px;
      background:linear-gradient(180deg,var(--berry),var(--copper));
    }
    .article-body h3{
      font-size:22px;
      line-height:1.35;
      font-weight:900;
      margin:1.65em 0 .7em;
      color:#2f2430;
    }
    .article-body h4{
      font-size:18px;
      font-weight:900;
      margin:1.4em 0 .55em;
      color:#342b35;
    }
    .article-body a{
      color:var(--berry);
      font-weight:800;
      text-decoration:underline;
      text-decoration-thickness:1px;
      text-underline-offset:4px;
    }
    .article-body a:hover{color:var(--berry-2)}
    .article-body ul,.article-body ol{
      padding-left:1.3em;
      margin:0 0 1.2em;
    }
    .article-body li{margin:.34em 0}
    .article-body blockquote{
      margin:1.6em 0;
      padding:22px 24px;
      border-left:5px solid var(--berry);
      border-radius:0 20px 20px 0;
      background:rgba(217,160,111,.14);
      color:#3b3037;
      font-weight:700;
    }
    .article-body figure{margin:1.7em 0}
    .article-body img{
      width:auto;
      max-width:100%;
      border-radius:18px;
      box-shadow:0 16px 40px rgba(18,16,20,.12);
      background:#eaded8;
    }
    .article-body figcaption{
      color:var(--muted);
      font-size:13px;
      text-align:center;
      margin-top:10px;
    }
    .article-body table{
      width:100%;
      min-width:620px;
      border-collapse:separate;
      border-spacing:0;
      margin:1.6em 0;
      border:1px solid var(--line-light);
      border-radius:18px;
      overflow:hidden;
      background:#fff;
    }
    .article-body th,.article-body td{
      padding:13px 15px;
      border-bottom:1px solid rgba(18,16,20,.08);
      vertical-align:top;
    }
    .article-body th{
      background:rgba(123,45,91,.09);
      color:var(--ink);
      font-weight:900;
    }
    .article-body tr:last-child td{border-bottom:0}
    .article-body code{
      padding:2px 7px;
      border-radius:8px;
      background:rgba(18,16,20,.07);
      color:var(--berry);
      font-size:.92em;
    }
    .empty-article{
      text-align:center;
      padding:48px 20px;
    }
    .empty-article .empty-icon{
      width:72px;height:72px;
      margin:0 auto 18px;
      border-radius:24px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(123,45,91,.13),rgba(217,160,111,.20));
      color:var(--berry);
      font-weight:900;
      font-size:22px;
    }
    .empty-article h2{
      margin:0 0 10px;
      font-size:28px;
      font-weight:900;
      color:var(--ink);
    }
    .empty-article p{
      margin:0 auto 22px;
      color:var(--muted);
      max-width:520px;
    }
    .side-stack{
      position:sticky;
      top:100px;
      display:grid;
      gap:18px;
    }
    .side-card{
      background:#fff;
      border:1px solid var(--line-light);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow-soft);
    }
    .side-card.dark{
      background:linear-gradient(145deg,#1b171d,#121014);
      color:var(--light);
      border-color:rgba(255,255,255,.12);
      box-shadow:var(--shadow);
    }
    .side-card h2,.side-card h3{
      font-size:19px;
      line-height:1.35;
      font-weight:900;
      margin:0 0 10px;
    }
    .side-card p{
      margin:0 0 16px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .side-card.dark p{color:rgba(248,241,236,.70)}
    .side-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .side-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#4c424a;
      font-size:14px;
      font-weight:700;
    }
    .side-card.dark .side-list li{color:rgba(248,241,236,.76)}
    .side-list li::before{
      content:"";
      width:8px;height:8px;
      margin-top:9px;
      border-radius:50%;
      background:var(--copper);
      box-shadow:0 0 0 5px rgba(217,160,111,.14);
      flex:0 0 auto;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:6px 11px;
      border-radius:var(--radius-pill);
      background:rgba(123,45,91,.10);
      color:var(--berry);
      font-size:12px;
      font-weight:900;
    }
    .tag.copper{
      background:rgba(217,160,111,.20);
      color:#815025;
    }
    .guide-grid{
      display:grid;
      grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
      gap:32px;
      align-items:center;
    }
    .guide-panel{
      position:relative;
      min-height:360px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      box-shadow:var(--shadow);
      background:var(--obsidian);
    }
    .guide-panel img{
      width:100%;
      height:100%;
      min-height:360px;
      object-fit:cover;
      opacity:.82;
    }
    .guide-panel::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(18,16,20,.12),rgba(18,16,20,.84));
    }
    .guide-panel-text{
      position:absolute;
      z-index:2;
      left:24px;right:24px;bottom:24px;
      color:var(--light);
    }
    .guide-panel-text strong{
      display:block;
      font-size:24px;
      line-height:1.25;
      font-weight:900;
      margin-bottom:8px;
    }
    .guide-panel-text p{margin:0;color:rgba(248,241,236,.76)}
    .guide-cards{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .guide-card{
      background:#fff;
      border:1px solid var(--line-light);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow-soft);
      transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
    }
    .guide-card:hover{
      transform:translateY(-4px);
      border-color:rgba(123,45,91,.38);
      box-shadow:var(--shadow);
    }
    .guide-card .num{
      display:inline-grid;
      place-items:center;
      width:34px;height:34px;
      border-radius:13px;
      background:rgba(217,160,111,.22);
      color:#8b572c;
      font-weight:900;
      margin-bottom:14px;
    }
    .guide-card h3{
      font-size:19px;
      font-weight:900;
      margin:0 0 8px;
      color:var(--ink);
    }
    .guide-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .return-panel{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      padding:34px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(18,16,20,.90),rgba(18,16,20,.76)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      color:var(--light);
    }
    .return-panel h2{
      margin:0 0 10px;
      font-size:clamp(25px,3.4vw,38px);
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .return-panel p{
      margin:0;
      color:rgba(248,241,236,.72);
      max-width:760px;
    }
    .mini-list{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
      margin-top:28px;
    }
    .mini-card{
      display:block;
      background:#fff;
      border:1px solid var(--line-light);
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow-soft);
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
    }
    .mini-card:hover{
      transform:translateY(-4px);
      border-color:rgba(123,45,91,.34);
      box-shadow:var(--shadow);
    }
    .mini-cover{
      position:relative;
      aspect-ratio:16/9;
      overflow:hidden;
      background:#211b22;
    }
    .mini-cover img{
      width:100%;height:100%;
      object-fit:cover;
      transition:transform .32s var(--ease);
    }
    .mini-card:hover .mini-cover img{transform:scale(1.04)}
    .mini-cover::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(18,16,20,.05),rgba(18,16,20,.68));
    }
    .mini-cover .tag{
      position:absolute;
      left:14px;
      bottom:14px;
      z-index:2;
      background:rgba(248,241,236,.92);
    }
    .mini-body{padding:18px}
    .mini-body h3{
      font-size:18px;
      line-height:1.35;
      font-weight:900;
      margin:0 0 8px;
      color:var(--ink);
      transition:color .2s var(--ease);
    }
    .mini-card:hover h3{color:var(--berry)}
    .mini-body p{
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
      margin:0 0 12px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .mini-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      color:#9a6b47;
      font-size:12px;
      font-weight:900;
    }
    .faq-wrap{
      max-width:940px;
      margin:28px auto 0;
      display:grid;
      gap:14px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--line-light);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:64px;
      padding:18px 22px;
      text-align:left;
      color:var(--ink);
      font-weight:900;
      background:#fff;
    }
    .faq-question span:first-child{font-size:17px}
    .faq-icon{
      width:30px;height:30px;
      border-radius:50%;
      display:grid;place-items:center;
      background:rgba(123,45,91,.10);
      color:var(--berry);
      transition:transform .22s var(--ease),background .22s var(--ease);
      flex:0 0 auto;
      font-weight:900;
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .24s var(--ease);
      border-top:1px solid transparent;
    }
    .faq-answer p{
      margin:0;
      padding:0 22px 20px;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
    }
    .faq-item.is-open{
      border-color:rgba(123,45,91,.30);
    }
    .faq-item.is-open .faq-question{
      background:linear-gradient(90deg,rgba(123,45,91,.08),rgba(217,160,111,.08));
    }
    .faq-item.is-open .faq-icon{
      transform:rotate(45deg);
      background:var(--berry);
      color:#fff;
    }
    .faq-item.is-open .faq-answer{
      max-height:260px;
      border-top-color:rgba(18,16,20,.08);
    }
    .site-footer{
      background:var(--obsidian);
      color:var(--light);
      padding:64px 0 28px;
      border-top:1px solid var(--line-dark);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.35fr) minmax(160px,.45fr) minmax(210px,.55fr);
      gap:42px;
      padding-bottom:38px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
      font-weight:900;
    }
    .footer-brand strong{font-size:18px;line-height:1.35}
    .footer-text{
      color:rgba(248,241,236,.68);
      max-width:640px;
      margin:0;
      font-size:14px;
      line-height:1.85;
    }
    .footer-col h3{
      font-size:15px;
      margin:0 0 14px;
      color:#fff;
      font-weight:900;
    }
    .footer-links{
      display:grid;
      gap:10px;
      color:rgba(248,241,236,.66);
      font-size:14px;
      font-weight:700;
    }
    .footer-links a,.footer-links span{
      width:max-content;
      max-width:100%;
      transition:color .2s var(--ease),transform .2s var(--ease);
    }
    .footer-links a:hover{
      color:var(--copper);
      transform:translateX(2px);
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid var(--line-dark);
      color:rgba(248,241,236,.52);
      font-size:13px;
    }
    @media (max-width:1024px){
      .desktop-nav,.desktop-cta{display:none}
      .mobile-toggle{display:flex}
      .mobile-panel.is-open{display:block}
      .article-hero-grid,.article-shell,.guide-grid{
        grid-template-columns:1fr;
      }
      .hero-cover{min-height:330px}
      .hero-cover img{min-height:330px}
      .side-stack{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
      .mini-list{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .nav-wrap{min-height:68px}
      .brand-mark{width:40px;height:40px;border-radius:13px}
      .brand-text strong{font-size:14px;max-width:230px}
      .brand-text span{font-size:11px}
      .article-hero{padding:42px 0 54px}
      .article-title{font-size:34px}
      .article-summary{font-size:15px}
      .breadcrumb{overflow:hidden}
      .breadcrumb .current{white-space:normal;max-width:100%}
      .section{padding:62px 0}
      .section-tight{padding:48px 0}
      .article-body{padding:28px 22px 34px;font-size:16px;line-height:1.85}
      .article-body h2{font-size:24px}
      .read-notice{grid-template-columns:1fr;padding:20px}
      .side-stack,.guide-cards,.mini-list{grid-template-columns:1fr}
      .return-panel{grid-template-columns:1fr;padding:26px}
      .return-panel .btn{width:100%}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .copyright{flex-direction:column;gap:8px}
    }
    @media (max-width:520px){
      .container{width:min(calc(100% - 22px),var(--container))}
      .brand-text strong{max-width:190px}
      .article-title{font-size:30px}
      .meta-row li{width:100%;justify-content:center}
      .hero-cover,.hero-cover img{min-height:260px}
      .cover-caption{left:14px;right:14px;bottom:14px}
      .article-main-card,.side-card,.guide-card,.return-panel,.faq-item{border-radius:20px}
      .section-title{font-size:27px}
      .btn{width:100%}
      .article-body table{font-size:14px}
    }

/* 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}