/* roulang page: index */
:root{
      --ink:#17101f;
      --ink-2:#251636;
      --purple:#2b1544;
      --purple-soft:#4d2b74;
      --mint:#25f0c7;
      --mint-2:#8affdc;
      --amber:#ffb45b;
      --paper:#f6f2ec;
      --paper-2:#fffaf3;
      --card:#ffffff;
      --text:#24222a;
      --muted:#686372;
      --line:rgba(43,21,68,.14);
      --line-dark:rgba(255,255,255,.14);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --shadow:0 24px 70px rgba(37,22,54,.12);
      --shadow-soft:0 14px 38px rgba(37,22,54,.09);
      --container:1200px;
      --header-h:76px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 8%, rgba(37,240,199,.12), transparent 30%),
        linear-gradient(180deg,#fffaf3 0%,#f6f2ec 42%,#fffaf3 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:var(--mint);color:var(--ink)}
    .container{width:min(var(--container), calc(100% - 40px));margin:0 auto}
    .site-header{
      position:fixed;top:0;left:0;right:0;z-index:50;
      height:var(--header-h);
      background:rgba(23,16,31,.76);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,255,255,.10);
      transition:var(--ease);
    }
    .site-header.scrolled{background:rgba(23,16,31,.94);box-shadow:0 12px 34px rgba(0,0,0,.22)}
    .nav-wrap{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:44px;height:44px;border-radius:15px;
      background:linear-gradient(135deg,var(--mint),#5f37ff 62%,var(--amber));
      display:grid;place-items:center;
      color:#111;font-weight:900;letter-spacing:-1px;
      box-shadow:0 0 0 1px rgba(255,255,255,.16),0 10px 28px rgba(37,240,199,.22);
      position:relative;overflow:hidden;
    }
    .brand-mark:after{
      content:"";position:absolute;inset:8px;border:1px solid rgba(23,16,31,.45);
      border-radius:10px;transform:skew(-8deg);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:17px;color:#fff;font-weight:800;white-space:nowrap}
    .brand-text span{font-size:12px;color:rgba(255,255,255,.68);white-space:nowrap}
    .main-nav{display:flex;align-items:center;gap:10px}
    .main-nav a{
      position:relative;color:rgba(255,255,255,.82);
      padding:10px 15px;border-radius:999px;font-size:15px;font-weight:650;
      transition:var(--ease);
    }
    .main-nav a:hover,.main-nav a.active{color:#101018;background:var(--mint)}
    .main-nav a:focus-visible,.btn:focus-visible,.menu-toggle:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
      outline:3px solid rgba(37,240,199,.45);outline-offset:3px;
    }
    .nav-cta{
      display:flex;align-items:center;gap:10px;
      padding:10px 18px;border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.18);
      color:#fff;font-weight:700;transition:var(--ease);
    }
    .nav-cta:hover{background:var(--mint);color:#12101b;transform:translateY(-2px)}
    .menu-toggle{
      display:none;width:46px;height:46px;border-radius:14px;
      background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;
      align-items:center;justify-content:center;flex-direction:column;gap:5px;
    }
    .menu-toggle span{width:20px;height:2px;background:currentColor;border-radius:999px;transition:var(--ease)}
    .mobile-panel{
      display:none;position:absolute;top:var(--header-h);left:16px;right:16px;
      background:#1b1127;border:1px solid rgba(255,255,255,.12);border-radius:20px;
      padding:14px;box-shadow:0 24px 70px rgba(0,0,0,.34);
    }
    .mobile-panel a{display:block;color:#fff;padding:14px 16px;border-radius:14px;border-bottom:1px solid rgba(255,255,255,.06)}
    .mobile-panel a.active,.mobile-panel a:hover{background:rgba(37,240,199,.14);color:var(--mint)}
    .hero{
      min-height:760px;
      padding:calc(var(--header-h) + 70px) 0 84px;
      color:#fff;
      position:relative;overflow:hidden;
      background:
        linear-gradient(110deg,rgba(23,16,31,.94),rgba(43,21,68,.84) 52%,rgba(23,16,31,.92)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }
    .hero:before{
      content:"";position:absolute;inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.18));
      pointer-events:none;
    }
    .hero:after{
      content:"";position:absolute;width:620px;height:620px;border-radius:50%;
      right:-180px;top:120px;border:1px solid rgba(37,240,199,.22);
      box-shadow:inset 0 0 60px rgba(37,240,199,.08),0 0 90px rgba(138,255,220,.09);
    }
    .hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
    .eyebrow{
      display:inline-flex;align-items:center;gap:9px;
      padding:8px 13px;border-radius:999px;
      border:1px solid rgba(37,240,199,.36);
      background:rgba(37,240,199,.09);
      color:var(--mint-2);font-size:14px;font-weight:750;
      margin-bottom:22px;
    }
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 6px rgba(37,240,199,.14)}
    h1{
      font-size:clamp(34px,5vw,54px);
      line-height:1.16;
      letter-spacing:-.02em;
      font-weight:850;
      margin-bottom:22px;
    }
    .hero-lead{
      font-size:18px;line-height:1.9;color:rgba(255,255,255,.82);
      max-width:680px;margin-bottom:30px;
    }
    .hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:48px;padding:12px 22px;border-radius:999px;
      font-weight:800;letter-spacing:.01em;transition:var(--ease);
      border:1px solid transparent;
    }
    .btn-primary{background:linear-gradient(135deg,var(--mint),var(--mint-2));color:#12101b;box-shadow:0 16px 38px rgba(37,240,199,.22)}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 50px rgba(37,240,199,.31)}
    .btn-secondary{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.22);color:#fff}
    .btn-secondary:hover{background:rgba(255,255,255,.13);border-color:rgba(37,240,199,.5);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:#fff}
    .btn-dark:hover{background:var(--purple);transform:translateY(-2px)}
    .safe-note{
      display:flex;align-items:flex-start;gap:10px;
      max-width:680px;padding:14px 16px;border-radius:18px;
      background:rgba(255,180,91,.10);border:1px solid rgba(255,180,91,.26);
      color:rgba(255,255,255,.84);font-size:14px;
    }
    .hero-panel{
      position:relative;border-radius:32px;padding:26px;
      background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.06));
      border:1px solid rgba(255,255,255,.16);
      box-shadow:0 28px 80px rgba(0,0,0,.30);
      overflow:hidden;
    }
    .hero-panel:before{
      content:"";position:absolute;inset:0;background:url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;opacity:.18;
    }
    .panel-inner{position:relative;z-index:1}
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
    .status{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-weight:800}
    .status i{width:10px;height:10px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 7px rgba(37,240,199,.13)}
    .panel-title{font-size:26px;font-weight:850;margin-bottom:12px;color:#fff}
    .panel-text{color:rgba(255,255,255,.76);font-size:15px;margin-bottom:22px}
    .entry-list{display:grid;gap:12px}
    .entry-item{
      display:grid;grid-template-columns:42px 1fr auto;gap:14px;align-items:center;
      padding:15px;border-radius:18px;
      background:rgba(23,16,31,.62);border:1px solid rgba(255,255,255,.12);
      transition:var(--ease);
    }
    .entry-item:hover{transform:translateX(4px);border-color:rgba(37,240,199,.4)}
    .entry-icon{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
      background:rgba(37,240,199,.12);color:var(--mint);font-weight:900;
    }
    .entry-item strong{display:block;color:#fff;font-size:16px}
    .entry-item span{display:block;color:rgba(255,255,255,.63);font-size:13px}
    .arrow{color:var(--mint);font-weight:900}
    .feature-strip{position:relative;z-index:5;margin-top:-44px}
    .strip-grid{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
      padding:14px;border-radius:28px;background:rgba(255,250,243,.92);
      border:1px solid rgba(43,21,68,.10);box-shadow:var(--shadow);
      backdrop-filter:blur(14px);
    }
    .strip-item{
      display:flex;gap:13px;align-items:flex-start;padding:18px;border-radius:20px;
      transition:var(--ease);
    }
    .strip-item:hover{background:#fff;transform:translateY(-3px)}
    .mini-icon{
      flex:0 0 auto;width:38px;height:38px;border-radius:14px;display:grid;place-items:center;
      background:var(--ink);color:var(--mint);font-weight:900;
    }
    .strip-item h3{font-size:17px;line-height:1.35;margin-bottom:4px}
    .strip-item p{font-size:14px;color:var(--muted);line-height:1.65}
    main{position:relative}
    .section{padding:86px 0}
    .section-tight{padding:66px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
    .section-kicker{color:var(--purple-soft);font-weight:850;font-size:14px;letter-spacing:.08em;margin-bottom:8px}
    h2{font-size:clamp(26px,3.2vw,38px);line-height:1.28;color:var(--ink);letter-spacing:-.01em}
    .section-head p{max-width:560px;color:var(--muted);font-size:16px}
    .explain-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:26px;align-items:stretch}
    .image-card{
      min-height:520px;border-radius:var(--radius-xl);overflow:hidden;position:relative;
      background:#1b1127;box-shadow:var(--shadow);
    }
    .image-card img{width:100%;height:100%;object-fit:cover;opacity:.88}
    .image-card .overlay{
      position:absolute;left:24px;right:24px;bottom:24px;padding:24px;border-radius:24px;
      background:rgba(23,16,31,.78);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(14px);color:#fff;
    }
    .overlay strong{font-size:22px;display:block;margin-bottom:8px}
    .overlay p{color:rgba(255,255,255,.78)}
    .layer-cards{display:grid;gap:16px}
    .info-card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
      padding:24px;box-shadow:var(--shadow-soft);transition:var(--ease);
    }
    .info-card:hover{transform:translateY(-4px);border-color:rgba(37,240,199,.56)}
    .badge{
      display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:999px;
      background:rgba(37,240,199,.11);color:#158a76;font-weight:800;font-size:13px;margin-bottom:12px;
    }
    .badge.amber{background:rgba(255,180,91,.16);color:#94602b}
    .info-card h3{font-size:21px;margin-bottom:8px;color:var(--ink)}
    .info-card p{color:var(--muted);font-size:15px}
    .guide-section{
      background:
        radial-gradient(circle at 85% 10%,rgba(37,240,199,.13),transparent 28%),
        linear-gradient(180deg,#fffaf3,#efe8df);
      border-top:1px solid rgba(43,21,68,.08);
      border-bottom:1px solid rgba(43,21,68,.08);
    }
    .steps{
      display:grid;grid-template-columns:repeat(5,1fr);gap:0;
      background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow-soft);
    }
    .step{
      position:relative;padding:28px 22px;min-height:210px;
      border-right:1px solid var(--line);transition:var(--ease);
    }
    .step:last-child{border-right:0}
    .step:hover{background:#fbfff9}
    .step-num{
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      background:var(--ink);color:var(--mint);font-weight:900;margin-bottom:18px;
      box-shadow:0 0 0 8px rgba(37,240,199,.08);
    }
    .step h3{font-size:19px;margin-bottom:8px;color:var(--ink)}
    .step p{font-size:14px;color:var(--muted);line-height:1.7}
    .notice{
      border-radius:32px;padding:38px;
      background:
        linear-gradient(120deg,rgba(23,16,31,.96),rgba(43,21,68,.94)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#fff;display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center;
      box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .notice:after{
      content:"";position:absolute;right:40px;top:-80px;width:240px;height:240px;border-radius:50%;
      border:1px solid rgba(255,180,91,.25);box-shadow:0 0 70px rgba(255,180,91,.10);
    }
    .notice h2{color:#fff;margin-bottom:12px}
    .notice p{color:rgba(255,255,255,.76)}
    .notice-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;position:relative;z-index:1}
    .notice-item{
      padding:18px;border-radius:18px;background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.13);
    }
    .notice-item strong{display:block;color:var(--amber);font-size:16px;margin-bottom:5px}
    .notice-item span{display:block;color:rgba(255,255,255,.72);font-size:14px;line-height:1.65}
    .recommend-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
    .featured-card{
      background:#fff;border:1px solid var(--line);border-radius:30px;overflow:hidden;box-shadow:var(--shadow-soft);transition:var(--ease);
    }
    .featured-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .featured-card img{height:278px;width:100%;object-fit:cover}
    .featured-body{padding:26px}
    .featured-body h3{font-size:25px;line-height:1.35;margin-bottom:10px}
    .featured-body p{color:var(--muted);margin-bottom:18px}
    .link-more{display:inline-flex;align-items:center;gap:8px;color:#137d6c;font-weight:850}
    .link-more:hover{color:var(--purple)}
    .small-list{display:grid;gap:14px}
    .article-row{
      display:grid;grid-template-columns:138px 1fr;gap:16px;align-items:center;
      background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px;
      box-shadow:0 10px 26px rgba(37,22,54,.06);transition:var(--ease);
    }
    .article-row:hover{transform:translateX(4px);border-color:rgba(37,240,199,.50)}
    .article-row img{width:138px;height:106px;object-fit:cover;border-radius:18px}
    .article-row h3{font-size:18px;line-height:1.4;margin:4px 0}
    .article-row p{font-size:14px;color:var(--muted);line-height:1.6}
    .proof-band{
      display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
      margin-top:18px;
    }
    .proof{
      padding:24px;border-radius:24px;background:linear-gradient(180deg,#fff,#fff8ef);
      border:1px solid var(--line);box-shadow:var(--shadow-soft);
    }
    .proof strong{display:block;color:var(--ink);font-size:20px;margin-bottom:8px}
    .proof p{color:var(--muted);font-size:15px}
    .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .faq-item{
      background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;
      transition:var(--ease);position:relative;overflow:hidden;
    }
    .faq-item:before{
      content:"问";position:absolute;right:18px;top:12px;color:rgba(43,21,68,.06);
      font-size:56px;font-weight:900;line-height:1;
    }
    .faq-item:hover{border-color:rgba(37,240,199,.55);transform:translateY(-3px)}
    .faq-item h3{font-size:19px;margin-bottom:9px;color:var(--ink);position:relative}
    .faq-item p{color:var(--muted);font-size:15px;position:relative}
    .contact-panel{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:stretch;
      background:#fff;border:1px solid var(--line);border-radius:32px;padding:26px;box-shadow:var(--shadow-soft);
    }
    .contact-aside{
      border-radius:26px;padding:28px;color:#fff;
      background:linear-gradient(145deg,var(--ink),var(--purple));
      position:relative;overflow:hidden;
    }
    .contact-aside:after{
      content:"";position:absolute;right:-70px;bottom:-70px;width:220px;height:220px;border-radius:50%;
      background:rgba(37,240,199,.12);border:1px solid rgba(37,240,199,.18);
    }
    .contact-aside h2{color:#fff;margin-bottom:12px}
    .contact-aside p{color:rgba(255,255,255,.75);margin-bottom:20px}
    .contact-aside ul{list-style:none;display:grid;gap:10px;position:relative;z-index:1}
    .contact-aside li{display:flex;gap:10px;color:rgba(255,255,255,.82);font-size:15px}
    .contact-aside li:before{content:"✓";color:var(--mint);font-weight:900}
    .feedback-form{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .field.full{grid-column:1/-1}
    .field label{display:block;font-weight:800;color:var(--ink);margin-bottom:7px;font-size:14px}
    .field input,.field select,.field textarea{
      width:100%;border:1px solid var(--line);border-radius:16px;background:#fffaf3;
      padding:13px 14px;color:var(--text);transition:var(--ease);
    }
    .field textarea{min-height:118px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:var(--mint);background:#fff}
    .form-note{grid-column:1/-1;color:var(--muted);font-size:14px}
    .cta{
      position:relative;overflow:hidden;border-radius:34px;padding:48px;
      background:
        linear-gradient(120deg,rgba(23,16,31,.96),rgba(43,21,68,.90)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;display:flex;align-items:center;justify-content:space-between;gap:26px;
      box-shadow:var(--shadow);
    }
    .cta h2{color:#fff;margin-bottom:10px}
    .cta p{color:rgba(255,255,255,.74);max-width:650px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}
    .site-footer{
      margin-top:86px;background:#130d1b;color:#fff;padding:58px 0 26px;
      border-top:1px solid rgba(255,255,255,.12);
    }
    .footer-grid{display:grid;grid-template-columns:1.35fr .7fr 1fr;gap:34px;margin-bottom:34px}
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .footer-brand strong{font-size:19px}
    .footer-grid p,.footer-grid li,.footer-bottom{color:rgba(255,255,255,.66);font-size:14px}
    .footer-grid h3{font-size:16px;margin-bottom:12px;color:#fff}
    .footer-grid ul{list-style:none;display:grid;gap:9px}
    .footer-grid a{color:rgba(255,255,255,.70);transition:var(--ease)}
    .footer-grid a:hover{color:var(--mint)}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
      padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
    }
    @media (max-width:1024px){
      .hero-grid,.explain-layout,.notice,.recommend-layout,.contact-panel{grid-template-columns:1fr}
      .hero{min-height:auto}
      .strip-grid{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:1fr 1fr}
      .step{border-right:0;border-bottom:1px solid var(--line)}
      .step:nth-last-child(-n+1){border-bottom:0}
      .footer-grid{grid-template-columns:1fr 1fr}
      .main-nav,.nav-cta{display:none}
      .menu-toggle{display:flex}
      .mobile-panel.open{display:block}
    }
    @media (max-width:768px){
      :root{--header-h:68px}
      .container{width:min(100% - 28px, var(--container))}
      .brand-text span{display:none}
      .brand-mark{width:40px;height:40px}
      .hero{padding:calc(var(--header-h) + 42px) 0 72px}
      .hero-grid{gap:32px}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .hero-panel{padding:18px;border-radius:24px}
      .entry-item{grid-template-columns:38px 1fr}
      .entry-item .arrow{display:none}
      .feature-strip{margin-top:-28px}
      .strip-grid,.notice-list,.faq-grid,.proof-band{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-tight{padding:48px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .image-card{min-height:420px}
      .steps{grid-template-columns:1fr}
      .step{min-height:auto}
      .article-row{grid-template-columns:96px 1fr}
      .article-row img{width:96px;height:88px}
      .feedback-form{grid-template-columns:1fr}
      .cta{padding:30px;display:block}
      .cta-actions{margin-top:22px}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .brand-text strong{font-size:15px}
      .panel-title{font-size:22px}
      .strip-item{padding:14px}
      .notice{padding:26px;border-radius:26px}
      .contact-panel{padding:16px;border-radius:26px}
      .contact-aside{padding:22px}
      .featured-card img{height:210px}
    }

/* roulang page: category1 */
:root{
      --bg:#f5f2ec;
      --bg-soft:#efe9df;
      --bg-deep:#120d1d;
      --bg-deeper:#0b0812;
      --card:#ffffff;
      --card-strong:#171122;
      --text:#1c1a22;
      --text-strong:#f7f4ee;
      --muted:#66606f;
      --muted-deep:#b9b2c7;
      --line:#e5ddd1;
      --line-deep:rgba(255,255,255,.12);
      --primary:#21d6cf;
      --primary-2:#7ef0c8;
      --accent:#ffb65c;
      --shadow:0 18px 50px rgba(20, 16, 31, .10);
      --shadow-deep:0 24px 60px rgba(0, 0, 0, .28);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --ease:cubic-bezier(.2,.8,.2,1);
      --header-h:84px;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top right, rgba(33,214,207,.10), transparent 24%),
        radial-gradient(circle at 15% 10%, rgba(255,182,92,.10), transparent 18%),
        linear-gradient(180deg, #f8f5ef 0%, #f2eee6 100%);
      line-height:1.8;
      overflow-x:hidden;
    }

    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{border:0;background:none;padding:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(33,214,207,.35);outline-offset:3px}

    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .site-header{
      position:fixed;
      inset:0 0 auto 0;
      z-index:1000;
      transition:background .3s var(--ease), box-shadow .3s var(--ease), backdrop-filter .3s var(--ease);
      background:rgba(18,13,29,.15);
      backdrop-filter:blur(12px);
      border-bottom:1px solid rgba(255,255,255,.06);
    }

    .site-header.scrolled{
      background:rgba(16,12,24,.94);
      box-shadow:0 8px 30px rgba(0,0,0,.16);
    }

    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      gap:18px;
    }

    .brand{
      display:inline-flex;
      align-items:center;
      gap:14px;
      min-width:0;
      color:#fff;
      flex:0 0 auto;
    }

    .brand-mark{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:800;
      letter-spacing:.08em;
      color:#0b0812;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      box-shadow:0 10px 24px rgba(33,214,207,.24);
      position:relative;
      overflow:hidden;
    }

    .brand-mark::after{
      content:"";
      position:absolute;
      inset:-30% auto auto -10%;
      width:70%;
      height:70%;
      background:linear-gradient(135deg, rgba(255,255,255,.44), transparent 65%);
      transform:rotate(18deg);
    }

    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
      min-width:0;
    }

    .brand-text strong{
      font-size:16px;
      font-weight:800;
      letter-spacing:.02em;
      color:#fff;
      white-space:nowrap;
    }

    .brand-text em{
      font-style:normal;
      font-size:12px;
      color:rgba(255,255,255,.72);
      margin-top:3px;
      white-space:nowrap;
    }

    .nav-toggle{
      display:none;
      margin-left:auto;
      align-items:center;
      justify-content:center;
      width:44px;
      height:44px;
      border-radius:12px;
      border:1px solid rgba(255,255,255,.16);
      color:#fff;
      background:rgba(255,255,255,.04);
      transition:background .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease);
    }
    .nav-toggle:hover{background:rgba(255,255,255,.10);transform:translateY(-1px)}

    .nav-toggle span{
      display:block;
      width:18px;
      height:2px;
      background:currentColor;
      position:relative;
      border-radius:2px;
    }
    .nav-toggle span::before,
    .nav-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:2px;
    }
    .nav-toggle span::before{top:-6px}
    .nav-toggle span::after{top:6px}

    .main-nav{
      margin-left:24px;
      display:flex;
      align-items:center;
      gap:10px;
      flex:1 1 auto;
    }

    .main-nav a{
      position:relative;
      color:rgba(255,255,255,.82);
      font-size:15px;
      padding:10px 14px;
      border-radius:999px;
      transition:color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
      white-space:nowrap;
    }

    .main-nav a::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:7px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--primary), var(--primary-2));
      transform:scaleX(0);
      transform-origin:center;
      transition:transform .25s var(--ease);
      opacity:.95;
    }

    .main-nav a:hover,
    .main-nav a.active{
      color:#fff;
      background:rgba(255,255,255,.06);
    }

    .main-nav a:hover::after,
    .main-nav a.active::after{transform:scaleX(1)}

    .header-cta{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:12px 18px;
      border-radius:999px;
      font-weight:700;
      color:#0b0812;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      box-shadow:0 10px 30px rgba(33,214,207,.24);
      transition:transform .2s var(--ease), box-shadow .2s var(--ease), filter .2s var(--ease);
    }
    .header-cta:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(33,214,207,.30);filter:saturate(1.05)}

    main{padding-top:var(--header-h)}

    .hero{
      position:relative;
      overflow:hidden;
      color:var(--text-strong);
      background:
        linear-gradient(135deg, rgba(16,12,24,.94) 0%, rgba(28,16,45,.96) 60%, rgba(13,10,21,.98) 100%);
      min-height:calc(100vh - 84px);
      display:flex;
      align-items:center;
    }

    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(0,0,0,.50), rgba(0,0,0,.18)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.55;
      mix-blend-mode:screen;
      pointer-events:none;
    }

    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(120deg, rgba(33,214,207,.10), transparent 34%),
        linear-gradient(300deg, rgba(255,182,92,.08), transparent 28%),
        repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 1px, transparent 1px 20px);
      opacity:.4;
      pointer-events:none;
    }

    .hero .container{
      position:relative;
      z-index:1;
      padding:42px 0 54px;
    }

    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);
      gap:34px;
      align-items:center;
    }

    .hero-copy{
      max-width:660px;
    }

    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.88);
      font-size:13px;
      letter-spacing:.04em;
      margin-bottom:18px;
      backdrop-filter:blur(8px);
    }

    .eyebrow .dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 6px rgba(33,214,207,.15);
    }

    h1{
      margin:0;
      font-size:clamp(32px, 4vw, 52px);
      line-height:1.18;
      letter-spacing:-.02em;
      font-weight:800;
    }

    .hero-copy p{
      margin:18px 0 0;
      color:rgba(255,255,255,.8);
      font-size:17px;
      line-height:1.9;
      max-width:58ch;
    }

    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      font-weight:700;
      transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
      cursor:pointer;
    }

    .btn-primary{
      color:#0b0812;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      box-shadow:0 14px 34px rgba(33,214,207,.28);
    }

    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(33,214,207,.32)}

    .btn-secondary{
      color:#fff;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.04);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      border-color:rgba(33,214,207,.52);
      background:rgba(33,214,207,.08);
    }

    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }

    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      font-size:14px;
      color:rgba(255,255,255,.88);
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.1);
      backdrop-filter:blur(6px);
    }

    .tag i{
      width:8px;height:8px;border-radius:50%;
      display:inline-block;background:var(--accent);
      box-shadow:0 0 0 6px rgba(255,182,92,.15);
    }

    .hero-panel{
      position:relative;
      padding:18px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-deep);
      backdrop-filter:blur(12px);
    }

    .hero-visual{
      position:relative;
      overflow:hidden;
      border-radius:22px;
      min-height:360px;
      background:
        linear-gradient(180deg, rgba(17,13,25,.14), rgba(17,13,25,.82)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.10);
    }

    .hero-visual::before{
      content:"";
      position:absolute;
      inset:18px 18px auto auto;
      width:150px;
      height:150px;
      border-radius:50%;
      border:1px solid rgba(126,240,200,.38);
      box-shadow:0 0 0 18px rgba(126,240,200,.06), 0 0 30px rgba(33,214,207,.16);
    }

    .hero-visual::after{
      content:"";
      position:absolute;
      left:-10%;
      right:-10%;
      bottom:15%;
      height:2px;
      background:linear-gradient(90deg, transparent, rgba(33,214,207,.9), transparent);
      opacity:.8;
      transform:rotate(-9deg);
    }

    .panel-card{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
      padding:16px;
      border-radius:18px;
      background:rgba(12,10,18,.74);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(10px);
    }

    .panel-stat{
      padding:12px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
    }

    .panel-stat strong{
      display:block;
      font-size:18px;
      color:#fff;
      line-height:1.25;
      margin-bottom:6px;
    }

    .panel-stat span{
      display:block;
      font-size:13px;
      color:rgba(255,255,255,.72);
      line-height:1.6;
    }

    .section{
      padding:86px 0;
      position:relative;
    }

    .section.soft{
      background:linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.18));
    }

    .section.dark{
      color:var(--text-strong);
      background:
        linear-gradient(135deg, rgba(13,10,21,.98), rgba(23,15,38,.98));
    }

    .section-heading{
      display:flex;
      flex-direction:column;
      gap:12px;
      margin-bottom:28px;
    }

    .section-heading h2{
      margin:0;
      font-size:clamp(26px, 3vw, 38px);
      line-height:1.22;
      letter-spacing:-.02em;
      font-weight:800;
    }

    .section-heading p{
      margin:0;
      color:var(--muted);
      max-width:68ch;
      font-size:16px;
      line-height:1.85;
    }

    .dark .section-heading p,
    .dark .muted,
    .dark p,
    .dark li,
    .dark summary{
      color:var(--muted-deep);
    }

    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:18px;
      font-size:14px;
      color:rgba(255,255,255,.72);
    }

    .breadcrumb a{
      color:inherit;
      transition:color .2s var(--ease);
    }

    .breadcrumb a:hover{color:#fff}

    .breadcrumb span:last-child{
      color:#fff;
    }

    .index-strip{
      margin-top:-36px;
      position:relative;
      z-index:2;
    }

    .index-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }

    .index-item{
      display:flex;
      align-items:flex-start;
      gap:14px;
      padding:18px 18px 17px;
      border-radius:20px;
      background:rgba(255,255,255,.76);
      border:1px solid rgba(231,221,208,.9);
      box-shadow:var(--shadow);
      min-height:92px;
      transition:transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
    }

    .index-item:hover{
      transform:translateY(-4px);
      border-color:rgba(33,214,207,.45);
      box-shadow:0 20px 40px rgba(20,16,31,.12);
    }

    .index-icon{
      width:38px;
      height:38px;
      flex:0 0 auto;
      border-radius:13px;
      display:grid;
      place-items:center;
      color:#0b0812;
      background:linear-gradient(135deg, rgba(33,214,207,.20), rgba(126,240,200,.35));
      border:1px solid rgba(33,214,207,.25);
    }

    .index-item strong{
      display:block;
      font-size:16px;
      line-height:1.35;
      margin-bottom:4px;
    }

    .index-item span{
      display:block;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }

    .content-grid{
      display:grid;
      grid-template-columns:minmax(0,1.65fr) minmax(300px,.95fr);
      gap:28px;
      align-items:start;
    }

    .feature-card,
    .guide-card,
    .side-card,
    .faq-card,
    .feedback-card,
    .bottom-cta-card{
      border-radius:var(--radius-xl);
      background:var(--card);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }

    .feature-card{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:0;
      overflow:hidden;
    }

    .feature-media{
      min-height:340px;
      background:
        linear-gradient(180deg, rgba(12,10,16,.04), rgba(12,10,16,.60)),
        url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
      position:relative;
    }

    .feature-media::after{
      content:"";
      position:absolute;
      inset:16px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.18);
      box-shadow:inset 0 0 0 1px rgba(33,214,207,.14);
    }

    .feature-content{
      padding:28px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:16px;
    }

    .mini-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(33,214,207,.10);
      color:#0d605c;
      border:1px solid rgba(33,214,207,.18);
      font-size:13px;
      font-weight:700;
      width:max-content;
    }

    .feature-content h3{
      margin:0;
      font-size:26px;
      line-height:1.28;
    }

    .feature-content p{
      margin:0;
      color:var(--muted);
      line-height:1.9;
      font-size:16px;
    }

    .check-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }

    .check-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      color:var(--text);
      line-height:1.75;
    }

    .check-list li::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:50%;
      margin-top:8px;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(33,214,207,.15);
      flex:0 0 auto;
    }

    .guide-list{
      display:grid;
      gap:18px;
      margin-top:18px;
    }

    .guide-card{
      overflow:hidden;
      display:grid;
      grid-template-columns:170px minmax(0,1fr);
      gap:0;
      transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    }

    .guide-card:hover{
      transform:translateY(-4px);
      border-color:rgba(33,214,207,.35);
      box-shadow:0 20px 46px rgba(20,16,31,.12);
    }

    .guide-thumb{
      min-height:170px;
      background-size:cover;
      background-position:center;
      position:relative;
    }

    .guide-thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent, rgba(17,13,25,.38));
    }

    .guide-body{
      padding:22px 22px 20px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:12px;
    }

    .guide-body h3{
      margin:0;
      font-size:20px;
      line-height:1.35;
    }

    .guide-body p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.85;
    }

    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
    }

    .chip{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:#f7f4ef;
      border:1px solid #e7dfd3;
      color:#635d6b;
      font-size:12px;
      font-weight:700;
      width:max-content;
    }

    .read-more{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#0f6f69;
      font-weight:700;
      font-size:14px;
      transition:gap .2s var(--ease), color .2s var(--ease);
    }

    .read-more:hover{gap:12px;color:#0b5f5a}

    .sidebar{
      position:sticky;
      top:calc(var(--header-h) + 18px);
      display:grid;
      gap:18px;
    }

    .side-card{
      padding:22px;
    }

    .side-card h3{
      margin:0 0 14px;
      font-size:20px;
      line-height:1.3;
    }

    .side-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.85;
    }

    .quick-links{
      display:grid;
      gap:10px;
      margin-top:14px;
    }

    .quick-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:14px;
      border:1px solid var(--line);
      background:#fbfaf7;
      color:var(--text);
      transition:transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
    }

    .quick-links a:hover{
      transform:translateY(-2px);
      background:#f4fffd;
      border-color:rgba(33,214,207,.35);
    }

    .quick-links a span{
      color:var(--muted);
      font-size:13px;
    }

    .bullet-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }

    .bullet-list li{
      position:relative;
      padding-left:18px;
      color:var(--text);
      line-height:1.75;
      font-size:14px;
    }

    .bullet-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:12px;
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(255,182,92,.16);
    }

    .faq-preview{
      display:grid;
      gap:10px;
      margin-top:12px;
    }

    .faq-preview a{
      display:block;
      padding:12px 14px;
      border-radius:14px;
      background:#fbfaf7;
      border:1px solid var(--line);
      color:var(--text);
      transition:transform .2s var(--ease), border-color .2s var(--ease);
    }

    .faq-preview a:hover{
      transform:translateY(-2px);
      border-color:rgba(33,214,207,.35);
    }

    .steps-wrap{
      display:grid;
      grid-template-columns:repeat(5,minmax(0,1fr));
      gap:16px;
    }

    .step-card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:24px;
      padding:22px 20px 20px;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
      transition:transform .2s var(--ease), border-color .2s var(--ease);
    }

    .step-card:hover{
      transform:translateY(-4px);
      border-color:rgba(33,214,207,.35);
    }

    .step-card::after{
      content:"";
      position:absolute;
      inset:auto 18px 18px auto;
      width:80px;
      height:80px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(33,214,207,.12), transparent 65%);
      pointer-events:none;
    }

    .step-num{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:800;
      color:#0b0812;
      background:linear-gradient(135deg, rgba(33,214,207,.18), rgba(126,240,200,.35));
      border:1px solid rgba(33,214,207,.22);
      margin-bottom:14px;
    }

    .step-card h3{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.35;
    }

    .step-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }

    .safety-banner{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(135deg, rgba(15,11,22,.96), rgba(29,18,41,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow-deep);
    }

    .safety-banner::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(120deg, rgba(33,214,207,.08), transparent 50%);
      pointer-events:none;
    }

    .safety-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      padding:30px;
      align-items:center;
    }

    .safety-copy h2{
      margin:0 0 12px;
      font-size:clamp(24px, 3vw, 34px);
      line-height:1.2;
      color:#fff;
    }

    .safety-copy p{
      margin:0;
      color:rgba(255,255,255,.76);
      line-height:1.85;
      font-size:16px;
      max-width:62ch;
    }

    .safety-box{
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      backdrop-filter:blur(8px);
    }

    .safety-box ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }

    .safety-box li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:rgba(255,255,255,.84);
      line-height:1.75;
      font-size:14px;
    }

    .safety-box li::before{
      content:"!";
      width:22px;
      height:22px;
      flex:0 0 auto;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#0b0812;
      background:var(--accent);
      font-weight:800;
      margin-top:2px;
    }

    .faq-list{
      display:grid;
      gap:14px;
    }

    .faq-item{
      border-radius:22px;
      background:var(--card);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      overflow:hidden;
    }

    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      display:flex;
      gap:14px;
      align-items:flex-start;
      font-weight:700;
      color:var(--text);
      font-size:17px;
      line-height:1.5;
      transition:background .2s var(--ease), color .2s var(--ease);
    }

    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::before{
      content:"?";
      width:28px;
      height:28px;
      border-radius:10px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      background:rgba(33,214,207,.12);
      color:#0f6f69;
      border:1px solid rgba(33,214,207,.22);
      font-size:15px;
      margin-top:2px;
    }

    .faq-item[open] summary{
      background:rgba(33,214,207,.06);
      color:#0f6f69;
    }

    .faq-answer{
      padding:0 22px 20px 64px;
      color:var(--muted);
      font-size:15px;
      line-height:1.9;
    }

    .feedback-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);
      gap:24px;
      align-items:start;
    }

    .feedback-card{
      padding:28px;
    }

    .feedback-card h2{
      margin:0 0 10px;
      font-size:clamp(24px, 3vw, 32px);
      line-height:1.25;
    }

    .feedback-card p{
      margin:0 0 20px;
      color:var(--muted);
      line-height:1.85;
    }

    .feedback-form{
      display:grid;
      gap:16px;
    }

    .form-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
    }

    .field{
      display:grid;
      gap:8px;
    }

    .field label{
      font-size:14px;
      font-weight:700;
      color:var(--text);
    }

    .field input,
    .field select,
    .field textarea{
      width:100%;
      border:1px solid var(--line);
      background:#fff;
      border-radius:16px;
      min-height:48px;
      padding:12px 14px;
      color:var(--text);
      transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
    }

    .field textarea{
      min-height:140px;
      resize:vertical;
      line-height:1.8;
    }

    .field input:focus,
    .field select:focus,
    .field textarea:focus{
      border-color:rgba(33,214,207,.78);
      box-shadow:0 0 0 4px rgba(33,214,207,.12);
      background:#fbfffe;
      outline:none;
    }

    .form-note{
      padding:18px 20px;
      border-radius:18px;
      background:linear-gradient(135deg, rgba(33,214,207,.10), rgba(126,240,200,.16));
      border:1px solid rgba(33,214,207,.20);
      color:#165f5b;
      line-height:1.8;
      font-size:14px;
    }

    .feedback-aside{
      display:grid;
      gap:18px;
      position:sticky;
      top:calc(var(--header-h) + 18px);
    }

    .aside-banner{
      border-radius:26px;
      overflow:hidden;
      min-height:220px;
      background:
        linear-gradient(180deg, rgba(15,11,22,.08), rgba(15,11,22,.78)),
        url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      border:1px solid var(--line);
      display:flex;
      align-items:flex-end;
      padding:22px;
    }

    .aside-banner strong{
      display:block;
      color:#fff;
      font-size:18px;
      line-height:1.35;
      margin-bottom:6px;
    }

    .aside-banner span{
      color:rgba(255,255,255,.76);
      font-size:14px;
      line-height:1.7;
    }

    .aside-card{
      padding:22px;
      border-radius:24px;
      background:var(--card);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }

    .aside-card h3{
      margin:0 0 12px;
      font-size:18px;
      line-height:1.3;
    }

    .aside-card .bullet-list li{
      font-size:14px;
    }

    .bottom-cta{
      padding-top:0;
    }

    .bottom-cta-card{
      padding:30px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      background:
        linear-gradient(135deg, rgba(18,13,29,.98), rgba(31,18,46,.98));
      color:#fff;
      border-color:rgba(255,255,255,.08);
      box-shadow:var(--shadow-deep);
    }

    .bottom-cta-card h2{
      margin:0 0 10px;
      font-size:clamp(26px, 3vw, 36px);
      line-height:1.2;
    }

    .bottom-cta-card p{
      margin:0;
      color:rgba(255,255,255,.76);
      line-height:1.85;
      max-width:62ch;
    }

    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      flex:0 0 auto;
    }

    .footer-spacer{height:28px}

    .site-footer{
      background:#0d0914;
      color:#ddd6e6;
      padding:72px 0 28px;
      margin-top:0;
      position:relative;
    }

    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .9fr;
      gap:28px;
      padding-bottom:24px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }

    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }

    .footer-brand .brand-mark{
      width:38px;
      height:38px;
      border-radius:12px;
      font-size:14px;
    }

    .site-footer p{
      margin:0;
      color:#b8afc4;
      line-height:1.9;
      font-size:15px;
    }

    .site-footer h3{
      margin:0 0 14px;
      color:#fff;
      font-size:17px;
    }

    .site-footer ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }

    .site-footer a{
      color:#d8d0e2;
      transition:color .2s var(--ease), transform .2s var(--ease);
    }
    .site-footer a:hover{color:#fff}

    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      padding-top:20px;
      color:#988faf;
      font-size:14px;
    }

    .hero, .section.dark{
      position:relative;
    }

    .section.soft::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(20,16,31,.08), transparent);
    }

    @media (max-width: 1199px){
      .hero-grid,
      .content-grid,
      .feedback-grid,
      .safety-inner{
        grid-template-columns:1fr;
      }

      .sidebar,
      .feedback-aside{
        position:static;
      }

      .feature-card{
        grid-template-columns:1fr;
      }

      .feature-media{
        min-height:260px;
      }

      .steps-wrap{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }

      .index-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }

      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
    }

    @media (max-width: 767px){
      :root{--header-h:72px}
      .header-inner{
        gap:12px;
      }

      .nav-toggle{
        display:inline-flex;
      }

      .main-nav{
        position:absolute;
        left:16px;
        right:16px;
        top:calc(100% + 10px);
        margin:0;
        padding:12px;
        flex-direction:column;
        align-items:stretch;
        background:rgba(12,10,18,.96);
        border:1px solid rgba(255,255,255,.10);
        border-radius:18px;
        box-shadow:var(--shadow-deep);
        display:none;
      }

      .main-nav.is-open{display:flex}

      .main-nav a{
        padding:14px 16px;
        border-radius:14px;
        background:rgba(255,255,255,.04);
      }

      .header-cta{
        display:none;
      }

      .hero{
        min-height:auto;
      }

      .hero .container{
        padding:28px 0 42px;
      }

      h1{
        font-size:clamp(30px, 8vw, 36px);
      }

      .hero-copy p{
        font-size:16px;
      }

      .panel-card{
        grid-template-columns:1fr;
      }

      .index-grid{
        grid-template-columns:1fr;
      }

      .guide-card{
        grid-template-columns:1fr;
      }

      .guide-thumb{
        min-height:200px;
      }

      .steps-wrap{
        grid-template-columns:1fr;
      }

      .safety-inner,
      .bottom-cta-card{
        padding:22px;
      }

      .bottom-cta-card{
        flex-direction:column;
        align-items:flex-start;
      }

      .form-grid{
        grid-template-columns:1fr;
      }

      .footer-grid{
        grid-template-columns:1fr;
      }
    }

    @media (max-width: 520px){
      .container{
        width:min(var(--container), calc(100% - 24px));
      }

      .section{
        padding:64px 0;
      }

      .hero-actions,
      .cta-actions{
        flex-direction:column;
      }

      .btn{
        width:100%;
      }

      .feature-content,
      .guide-body,
      .side-card,
      .feedback-card,
      .faq-item summary,
      .faq-answer{
        padding-left:18px;
        padding-right:18px;
      }

      .faq-answer{
        padding-top:0;
      }

      .faq-item summary{
        font-size:16px;
      }

      .panel-card{
        left:14px;
        right:14px;
        bottom:14px;
      }
    }