/* roulang page: index */
:root{
      --bg:#0c0b12;
      --bg-soft:#15131f;
      --panel:#1d1a29;
      --panel-2:#242033;
      --text:#f7f3ea;
      --muted:#b7adbf;
      --muted-2:#8f849b;
      --line:rgba(255,255,255,.12);
      --primary:#ff5a3d;
      --primary-2:#ffb84d;
      --accent:#8f6cff;
      --good:#46d19a;
      --danger:#ff6b7a;
      --shadow:0 24px 70px rgba(0,0,0,.34);
      --shadow-soft:0 14px 42px rgba(0,0,0,.24);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --nav-h:78px;
      --font: "PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 0%,rgba(255,90,61,.23),transparent 34%),
        radial-gradient(circle at 82% 12%,rgba(143,108,255,.22),transparent 30%),
        linear-gradient(180deg,#0b0a10 0%,#11101a 48%,#0d0c13 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    a:hover{color:inherit}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,90,61,.35);color:#fff}
    .container-rl{max-width:var(--container);margin:0 auto;padding:0 22px}
    .skip-link{
      position:absolute;left:-999px;top:12px;background:#fff;color:#111;padding:10px 14px;border-radius:10px;z-index:99
    }
    .skip-link:focus{left:12px;outline:3px solid var(--primary-2)}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(12,11,18,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .navbar-rl{
      min-height:var(--nav-h);
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.02em;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 30px rgba(255,90,61,.24);
      color:#fff;font-weight:900;
    }
    .brand-text{font-size:18px}
    .nav-links{
      display:flex;align-items:center;gap:10px;margin:0;padding:0;list-style:none;
    }
    .nav-links a{
      display:inline-flex;align-items:center;justify-content:center;
      padding:10px 16px;border-radius:999px;color:var(--muted);
      transition:.22s ease;
      font-weight:700;
    }
    .nav-links a:hover,.nav-links a.active{
      color:#fff;background:rgba(255,255,255,.08);
    }
    .nav-action{
      display:flex;align-items:center;gap:12px
    }
    .nav-search{
      width:210px;height:42px;border-radius:999px;border:1px solid var(--line);
      background:rgba(255,255,255,.06);color:var(--text);
      padding:0 16px;outline:none;transition:.22s ease;
    }
    .nav-search::placeholder{color:var(--muted-2)}
    .nav-search:focus{
      border-color:rgba(255,184,77,.75);
      box-shadow:0 0 0 4px rgba(255,184,77,.12);
      background:rgba(255,255,255,.09);
    }
    .btn-rl{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border:0;border-radius:999px;padding:12px 18px;font-weight:900;
      transition:.22s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary-rl{
      color:#241006;background:linear-gradient(135deg,var(--primary-2),var(--primary));
      box-shadow:0 16px 34px rgba(255,90,61,.28);
    }
    .btn-primary-rl:hover{transform:translateY(-2px);box-shadow:0 22px 44px rgba(255,90,61,.36);color:#1f0d06}
    .btn-ghost-rl{
      color:#fff;background:rgba(255,255,255,.08);border:1px solid var(--line);
    }
    .btn-ghost-rl:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
    .btn-dark-rl{
      background:#16131e;color:#fff;border:1px solid rgba(255,255,255,.14)
    }
    .btn-dark-rl:hover{background:#221d2d;transform:translateY(-2px)}
    .mobile-toggle{
      display:none;border:1px solid var(--line);background:rgba(255,255,255,.07);color:#fff;border-radius:14px;
      width:44px;height:42px;align-items:center;justify-content:center;
    }
    .step-nav{
      border-top:1px solid rgba(255,255,255,.07);
      background:rgba(18,16,26,.65);
    }
    .step-row{
      display:grid;grid-template-columns:repeat(4,1fr);gap:0;
      position:relative;
    }
    .step-row:before{
      content:"";position:absolute;left:10%;right:10%;top:20px;height:2px;
      background:linear-gradient(90deg,var(--primary),var(--primary-2),var(--accent));
      opacity:.6;
    }
    .step-link{
      position:relative;z-index:1;padding:12px 10px 14px;
      display:flex;align-items:center;justify-content:center;gap:10px;
      color:var(--muted);font-size:14px;font-weight:800;transition:.2s ease;
    }
    .step-num{
      width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
      background:#211d2c;border:1px solid rgba(255,255,255,.18);color:#fff;font-size:12px;
      box-shadow:0 0 0 5px rgba(12,11,18,.86);
    }
    .step-link:hover{color:#fff}
    .step-link:hover .step-num{background:linear-gradient(135deg,var(--primary),var(--accent))}
    main{position:relative}
    .section{padding:82px 0}
    .section-tight{padding:56px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.07);border-radius:999px;
      color:#ffe1c0;font-weight:900;font-size:13px;margin-bottom:14px;
    }
    .section-title{
      font-size:clamp(30px,4vw,48px);line-height:1.15;margin:0 0 14px;font-weight:950;letter-spacing:-.04em;
    }
    .section-desc{
      max-width:760px;color:var(--muted);font-size:17px;margin:0;
    }
    .hero{
      min-height:720px;
      padding:0 0 48px;
      position:relative;
      overflow:hidden;
    }
    .hero-cover{
      min-height:640px;
      display:flex;align-items:flex-end;
      position:relative;
      border-bottom:1px solid var(--line);
      background:
        linear-gradient(180deg,rgba(12,11,18,.08) 0%,rgba(12,11,18,.42) 42%,rgba(12,11,18,.94) 100%),
        radial-gradient(circle at 18% 18%,rgba(255,184,77,.22),transparent 32%),
        radial-gradient(circle at 88% 14%,rgba(143,108,255,.28),transparent 28%),
        linear-gradient(135deg,#23162a 0%,#17121f 42%,#0c0b12 100%);
    }
    .hero-cover:after{
      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:48px 48px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 85%);
      pointer-events:none;
    }
    .hero-visual-band{
      position:absolute;inset:auto 0 82px 0;height:180px;
      display:flex;gap:18px;transform:rotate(-2deg) scale(1.03);
      opacity:.52;pointer-events:none;
    }
    .poster-strip{
      flex:1;border-radius:24px;border:1px solid rgba(255,255,255,.13);
      background:
        linear-gradient(135deg,rgba(255,90,61,.32),rgba(143,108,255,.18)),
        repeating-linear-gradient(135deg,rgba(255,255,255,.08) 0 2px,transparent 2px 14px);
      box-shadow:var(--shadow-soft);
    }
    .poster-strip:nth-child(2){background:linear-gradient(135deg,rgba(255,184,77,.26),rgba(70,209,154,.15)),repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 15px)}
    .poster-strip:nth-child(3){background:linear-gradient(135deg,rgba(143,108,255,.32),rgba(255,90,61,.14)),repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 16px)}
    .hero-content{
      position:relative;z-index:2;width:100%;padding:126px 0 58px;
    }
    .series-tabs{
      display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;
    }
    .series-tabs a{
      padding:10px 14px;border-radius:999px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);color:#fff;font-weight:800;
      transition:.22s ease;
    }
    .series-tabs a:hover,.series-tabs a.active{
      background:linear-gradient(135deg,rgba(255,90,61,.95),rgba(255,184,77,.9));
      color:#221006;transform:translateY(-2px)
    }
    .hero-title{
      max-width:960px;
      font-size:clamp(38px,7vw,82px);
      line-height:1.03;margin:0 0 22px;font-weight:950;letter-spacing:-.06em;
    }
    .hero-lead{
      max-width:850px;font-size:clamp(17px,2vw,21px);color:#ded6e5;margin:0 0 28px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
    .hero-metrics{
      display:grid;grid-template-columns:repeat(3,minmax(150px,1fr));gap:14px;max-width:760px;
    }
    .metric{
      border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.07);
      border-radius:var(--radius-md);padding:16px 18px;backdrop-filter:blur(14px);
    }
    .metric strong{display:block;font-size:28px;line-height:1;font-weight:950;color:#fff}
    .metric span{color:var(--muted);font-size:13px}
    .store-panel{
      margin-top:-70px;position:relative;z-index:5;
    }
    .store-card{
      border:1px solid rgba(255,255,255,.14);
      background:linear-gradient(135deg,rgba(29,26,41,.92),rgba(20,18,29,.92));
      border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow);
      display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:center;
    }
    .store-row{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
    }
    .store-mini{
      padding:16px;border-radius:18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
    }
    .store-mini b{display:block;font-size:16px;margin-bottom:5px}
    .store-mini span{color:var(--muted);font-size:13px}
    .notice-panel{
      padding:18px;border-radius:22px;background:rgba(255,90,61,.12);border:1px solid rgba(255,90,61,.24);
      color:#ffe0d7;
    }
    .tier-wrap{
      display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch;
    }
    .ladder{
      border-radius:var(--radius-lg);background:linear-gradient(180deg,#241b2a,#171520);
      border:1px solid var(--line);padding:26px;box-shadow:var(--shadow-soft);
      position:relative;overflow:hidden;
    }
    .ladder:before{
      content:"";position:absolute;right:-80px;top:-80px;width:190px;height:190px;border-radius:50%;
      background:rgba(255,184,77,.2);filter:blur(8px)
    }
    .ladder-step{
      position:relative;display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed rgba(255,255,255,.13);
    }
    .ladder-step:last-child{border-bottom:0}
    .ladder-dot{
      width:38px;height:38px;flex:0 0 38px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));font-weight:950
    }
    .ladder-step h3{font-size:18px;margin:0 0 4px;font-weight:950}
    .ladder-step p{margin:0;color:var(--muted);font-size:14px}
    .benefit-grid{
      display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
    }
    .benefit-card,.info-card,.faq-item,.category-card{
      border:1px solid var(--line);background:rgba(255,255,255,.055);
      border-radius:var(--radius-md);padding:22px;transition:.22s ease;
    }
    .benefit-card:hover,.info-card:hover,.category-card:hover{
      transform:translateY(-5px);border-color:rgba(255,184,77,.35);box-shadow:var(--shadow-soft);
      background:rgba(255,255,255,.078);
    }
    .badge-rl{
      display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;
      font-size:12px;font-weight:900;color:#251206;background:#ffd391;margin-bottom:12px;
    }
    .benefit-card h3,.info-card h3,.category-card h3{font-size:19px;margin:0 0 8px;font-weight:950}
    .benefit-card p,.info-card p,.category-card p{margin:0;color:var(--muted);font-size:14px}
    .compare-shell{
      border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:rgba(255,255,255,.045);
      box-shadow:var(--shadow-soft);
    }
    .compare-head{
      display:grid;grid-template-columns:1.05fr repeat(3,1fr);background:rgba(255,255,255,.06);
      border-bottom:1px solid var(--line);
    }
    .compare-head div,.compare-row div{padding:18px;border-right:1px solid rgba(255,255,255,.09)}
    .compare-head div:last-child,.compare-row div:last-child{border-right:0}
    .compare-head strong{display:block;font-size:18px}
    .compare-head span{color:var(--muted);font-size:13px}
    .recommend{
      background:linear-gradient(180deg,rgba(255,90,61,.28),rgba(255,184,77,.08))!important;
      position:relative;
    }
    .recommend:before{
      content:"推荐";position:absolute;right:14px;top:10px;border-radius:999px;
      padding:3px 8px;background:var(--primary-2);color:#2a1304;font-size:12px;font-weight:950;
    }
    .compare-row{
      display:grid;grid-template-columns:1.05fr repeat(3,1fr);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-row div:first-child{color:#fff;font-weight:850}
    .compare-row div:not(:first-child){color:var(--muted)}
    .check{color:var(--good);font-weight:950}
    .dash{color:var(--muted-2)}
    .assurance{
      background:linear-gradient(135deg,rgba(70,209,154,.14),rgba(143,108,255,.12));
      border-top:1px solid rgba(255,255,255,.12);
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .assurance-row{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
    }
    .assurance-item{
      padding:18px;border-radius:20px;background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
    }
    .assurance-icon{
      width:42px;height:42px;border-radius:15px;display:grid;place-items:center;margin-bottom:12px;
      background:rgba(70,209,154,.18);color:#b9ffe0;font-weight:950;
    }
    .assurance-item b{display:block;margin-bottom:5px}
    .assurance-item span{color:var(--muted);font-size:14px}
    .news-layout{
      display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:start;
    }
    .news-list{
      border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(255,255,255,.045);
      overflow:hidden;
    }
    .news-item{
      display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;
      padding:20px 22px;border-bottom:1px solid rgba(255,255,255,.08);transition:.22s ease;
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:rgba(255,255,255,.065)}
    .news-date{
      color:#ffd391;font-weight:950;font-size:14px;
    }
    .news-title{font-weight:900;font-size:17px;margin:0 0 4px}
    .news-summary{margin:0;color:var(--muted);font-size:14px}
    .news-arrow{
      width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
      background:rgba(255,255,255,.08);color:#fff;transition:.22s ease;
    }
    .news-item:hover .news-arrow{background:var(--primary);transform:translateX(3px)}
    .recommend-box{
      border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;
      background:
        linear-gradient(160deg,rgba(255,90,61,.18),rgba(143,108,255,.08)),
        rgba(255,255,255,.045);
      position:sticky;top:118px;
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tag-cloud a{
      padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.075);
      border:1px solid rgba(255,255,255,.1);color:var(--muted);font-size:13px;font-weight:800;
    }
    .tag-cloud a:hover{color:#fff;border-color:rgba(255,184,77,.45)}
    .faq-grid{
      display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item h3{font-size:18px;margin:0 0 8px;font-weight:950}
    .faq-item p{margin:0;color:var(--muted)}
    .cta-section{
      padding:76px 0 90px;
    }
    .cta-card{
      border-radius:34px;overflow:hidden;position:relative;padding:34px;
      background:
        linear-gradient(135deg,rgba(255,184,77,.92),rgba(255,90,61,.88) 48%,rgba(143,108,255,.88)),
        #ff734f;
      color:#211006;box-shadow:0 30px 80px rgba(255,90,61,.28);
    }
    .cta-card:after{
      content:"";position:absolute;right:-120px;bottom:-120px;width:320px;height:320px;border-radius:50%;
      background:rgba(255,255,255,.22)
    }
    .cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:center}
    .cta-card h2{font-size:clamp(30px,4vw,52px);line-height:1.12;margin:0 0 14px;font-weight:950;letter-spacing:-.04em}
    .cta-card p{font-size:17px;margin:0 0 22px;max-width:720px}
    .lead-form{
      background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.6);
      border-radius:24px;padding:20px;box-shadow:0 18px 45px rgba(0,0,0,.16);
    }
    .form-label-rl{font-weight:900;color:#2a1304;margin-bottom:6px}
    .form-control-rl{
      width:100%;height:46px;border:1px solid rgba(36,16,6,.15);border-radius:14px;
      padding:0 14px;background:#fff;color:#251206;outline:none;transition:.2s ease;
    }
    textarea.form-control-rl{height:88px;padding-top:12px;resize:vertical}
    .form-control-rl:focus{border-color:#8f531e;box-shadow:0 0 0 4px rgba(143,83,30,.14)}
    .form-hint{font-size:12px;color:#6b4b31;margin-top:8px}
    .site-footer{
      border-top:1px solid var(--line);background:#09080d;padding:44px 0 24px;
    }
    .footer-grid{
      display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:28px;margin-bottom:28px;
    }
    .footer-title{font-weight:950;font-size:18px;margin-bottom:12px}
    .footer-text,.footer-links a{color:var(--muted);font-size:14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a:hover{color:#fff}
    .copyright{
      padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
      color:var(--muted-2);font-size:13px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
    }
    .floating-cta{
      position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:45;
      display:none;gap:10px;align-items:center;padding:10px 12px;border-radius:999px;
      background:rgba(20,18,29,.86);backdrop-filter:blur(16px);border:1px solid var(--line);box-shadow:var(--shadow-soft);
    }
    .floating-cta span{color:#fff;font-weight:850;font-size:13px}
    @media (max-width:1024px){
      .nav-search{display:none}
      .store-card,.tier-wrap,.news-layout,.faq-grid,.cta-inner{grid-template-columns:1fr}
      .recommend-box{position:static}
      .assurance-row{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      :root{--nav-h:66px}
      .navbar-rl{min-height:var(--nav-h)}
      .mobile-toggle{display:inline-flex}
      .nav-links{
        position:absolute;left:16px;right:16px;top:74px;
        display:none;flex-direction:column;align-items:stretch;
        background:rgba(18,16,26,.96);border:1px solid var(--line);border-radius:22px;padding:12px;
        box-shadow:var(--shadow);
      }
      .nav-links.show{display:flex}
      .nav-links a{justify-content:flex-start}
      .nav-action .btn-rl{display:none}
      .step-row{overflow-x:auto;display:flex;padding-bottom:2px}
      .step-row:before{display:none}
      .step-link{min-width:168px;justify-content:flex-start}
      .hero{min-height:auto}
      .hero-cover{min-height:610px}
      .hero-content{padding:98px 0 42px}
      .series-tabs{overflow-x:auto;flex-wrap:nowrap;padding-bottom:3px}
      .series-tabs a{white-space:nowrap}
      .hero-metrics,.store-row,.benefit-grid{grid-template-columns:1fr}
      .compare-shell{overflow-x:auto}
      .compare-head,.compare-row{min-width:760px}
      .news-item{grid-template-columns:1fr auto;gap:10px}
      .news-date{grid-column:1/-1}
      .footer-grid{grid-template-columns:1fr}
      .floating-cta{display:flex}
    }
    @media (max-width:520px){
      .container-rl{padding:0 16px}
      .section{padding:62px 0}
      .section-tight{padding:42px 0}
      .hero-title{font-size:39px}
      .hero-lead{font-size:16px}
      .hero-actions .btn-rl{width:100%}
      .store-panel{margin-top:-42px}
      .store-card,.ladder,.cta-card{border-radius:24px;padding:18px}
      .assurance-row{grid-template-columns:1fr}
      .cta-inner{gap:20px}
      .cta-card h2{font-size:31px}
      .copyright{display:block}
      .floating-cta{width:calc(100% - 24px);justify-content:space-between}
    }

/* 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}