/* roulang page: index */
:root{
      --brand:#0b6b62;
      --brand-2:#18a999;
      --brand-3:#c9fff3;
      --ink:#10211f;
      --muted:#62716f;
      --soft:#f3fbf8;
      --paper:#ffffff;
      --line:#dce9e6;
      --warning:#ffb84d;
      --danger:#f36f56;
      --deep:#071917;
      --shadow-sm:0 8px 24px rgba(16,33,31,.08);
      --shadow-md:0 18px 46px rgba(16,33,31,.12);
      --shadow-lg:0 28px 80px rgba(11,107,98,.18);
      --radius-sm:12px;
      --radius-md:20px;
      --radius-lg:30px;
      --radius-xl:38px;
      --container:1160px;
      --section:92px;
      --ease:all .25s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 2%, rgba(24,169,153,.14), transparent 32%),
        radial-gradient(circle at 92% 8%, rgba(255,184,77,.16), transparent 30%),
        linear-gradient(180deg,#f7fffc 0%,#ffffff 38%,#f6fbf9 100%);
      line-height:1.7;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--brand)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:var(--brand-3);color:var(--deep)}
    .container-xl{max-width:var(--container)}
    .section-pad{padding:var(--section) 0}
    .section-pad-sm{padding:70px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(11,107,98,.16);
      border-radius:999px;
      background:rgba(255,255,255,.78);
      color:var(--brand);
      font-weight:800;
      font-size:13px;
      letter-spacing:.02em;
      box-shadow:0 8px 24px rgba(11,107,98,.06);
    }
    .eyebrow .dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--brand-2);
      box-shadow:0 0 0 5px rgba(24,169,153,.15);
    }
    .section-title{
      margin:16px 0 12px;
      font-size:clamp(28px,3.2vw,44px);
      line-height:1.18;
      letter-spacing:-.04em;
      font-weight:900;
      color:var(--deep);
    }
    .section-desc{
      margin:0;
      max-width:760px;
      color:var(--muted);
      font-size:16px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      border-bottom:1px solid rgba(220,233,230,.8);
      background:rgba(247,255,252,.84);
      backdrop-filter:blur(18px);
      box-shadow:0 8px 28px rgba(7,25,23,.04);
    }
    .navbar{
      padding:14px 0;
    }
    .brand-logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:950;
      color:var(--deep);
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;height:42px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 28px rgba(11,107,98,.24);
      position:relative;
      overflow:hidden;
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      width:24px;height:24px;
      border-radius:50%;
      border:5px solid rgba(255,255,255,.38);
      right:-8px;bottom:-8px;
    }
    .brand-text{
      font-size:18px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:280px;
    }
    .navbar-toggler{
      border:1px solid var(--line);
      border-radius:14px;
      padding:9px 11px;
      box-shadow:none!important;
      background:#fff;
    }
    .nav-pill{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .navbar-nav .nav-link{
      color:var(--muted);
      font-weight:800;
      padding:10px 16px!important;
      border-radius:999px;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active{
      color:var(--brand);
      background:rgba(24,169,153,.1);
    }
    .header-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#7a4a00;
      background:rgba(255,184,77,.18);
      border:1px solid rgba(255,184,77,.32);
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .btn-brand,
    .btn-ghost,
    .btn-darkline{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:12px 20px;
      font-weight:900;
      border:1px solid transparent;
      transition:var(--ease);
      min-height:48px;
      box-shadow:none;
    }
    .btn-brand{
      color:#fff!important;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 14px 30px rgba(11,107,98,.25);
    }
    .btn-brand:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 38px rgba(11,107,98,.32);
    }
    .btn-ghost{
      background:#fff;
      color:var(--brand)!important;
      border-color:rgba(11,107,98,.18);
    }
    .btn-ghost:hover{
      border-color:rgba(11,107,98,.38);
      background:var(--soft);
      transform:translateY(-2px);
    }
    .btn-darkline{
      background:rgba(255,255,255,.08);
      color:#fff!important;
      border-color:rgba(255,255,255,.22);
    }
    .btn-darkline:hover{
      background:rgba(255,255,255,.16);
      transform:translateY(-2px);
    }
    .btn:focus-visible,
    a:focus-visible,
    button:focus-visible,
    input:focus-visible{
      outline:4px solid rgba(24,169,153,.25);
      outline-offset:3px;
    }

    .hero{
      padding:74px 0 54px;
      position:relative;
      overflow:hidden;
    }
    .hero-shell{
      border:1px solid rgba(11,107,98,.14);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(243,251,248,.84)),
        radial-gradient(circle at 75% 25%,rgba(201,255,243,.72),transparent 36%);
      box-shadow:var(--shadow-lg);
      padding:28px;
      position:relative;
      overflow:hidden;
    }
    .hero-shell:before{
      content:"";
      position:absolute;
      inset:auto -90px -120px auto;
      width:360px;height:360px;
      border-radius:50%;
      background:rgba(255,184,77,.16);
      filter:blur(2px);
    }
    .coupon-wall{
      display:grid;
      grid-template-columns:1fr 1.35fr 1fr;
      gap:18px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
    .hero-copy{
      padding:22px;
      border-radius:26px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(220,233,230,.82);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:352px;
    }
    .hero h1{
      margin:18px 0 16px;
      font-size:clamp(34px,5.2vw,68px);
      line-height:1.02;
      letter-spacing:-.065em;
      font-weight:950;
      color:var(--deep);
    }
    .hero-intro{
      color:var(--muted);
      font-size:17px;
      margin:0 0 22px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:auto;
    }
    .coupon-main{
      min-height:390px;
      border-radius:32px;
      padding:26px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(11,107,98,.98),rgba(24,169,153,.92)),
        radial-gradient(circle at top right,rgba(255,255,255,.28),transparent 34%);
      box-shadow:0 24px 72px rgba(11,107,98,.32);
      position:relative;
      overflow:hidden;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .coupon-main:before,
    .coupon-main:after{
      content:"";
      position:absolute;
      width:46px;height:46px;
      border-radius:50%;
      background:#f7fffc;
      top:46%;
      transform:translateY(-50%);
      opacity:.96;
    }
    .coupon-main:before{left:-23px}
    .coupon-main:after{right:-23px}
    .coupon-top{
      display:flex;
      justify-content:space-between;
      gap:14px;
      align-items:flex-start;
    }
    .coupon-label{
      display:inline-flex;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
      border:1px solid rgba(255,255,255,.24);
      font-weight:900;
      font-size:13px;
    }
    .coupon-code{
      font-size:13px;
      color:rgba(255,255,255,.78);
      font-weight:800;
      text-align:right;
    }
    .coupon-value{
      margin:26px 0 8px;
      font-size:clamp(42px,5vw,70px);
      line-height:1;
      font-weight:950;
      letter-spacing:-.06em;
    }
    .coupon-value small{
      font-size:24px;
      letter-spacing:0;
      opacity:.9;
    }
    .coupon-title{
      font-size:24px;
      font-weight:950;
      margin-bottom:10px;
    }
    .coupon-note{
      margin:0;
      color:rgba(255,255,255,.82);
    }
    .coupon-dash{
      margin:22px 0;
      border-top:2px dashed rgba(255,255,255,.36);
    }
    .coupon-mini-col{
      display:grid;
      gap:14px;
    }
    .mini-coupon,
    .metric-tile{
      border:1px solid rgba(220,233,230,.88);
      border-radius:24px;
      padding:20px;
      background:rgba(255,255,255,.78);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      min-height:112px;
    }
    .mini-coupon:hover,
    .metric-tile:hover,
    .feature-card:hover,
    .review-card:hover,
    .price-card:hover,
    .news-item:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-md);
    }
    .mini-coupon strong{
      display:block;
      color:var(--deep);
      font-size:18px;
      margin-bottom:5px;
    }
    .mini-coupon span,
    .metric-tile span{
      color:var(--muted);
      font-size:14px;
    }
    .metric-tile b{
      display:block;
      font-size:34px;
      line-height:1;
      color:var(--brand);
      letter-spacing:-.04em;
      margin-bottom:8px;
    }

    .stage-wrap{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:28px;
      align-items:center;
    }
    .dashboard-stage{
      border-radius:34px;
      padding:22px;
      background:linear-gradient(180deg,#10211f,#071917);
      box-shadow:var(--shadow-lg);
      border:1px solid rgba(255,255,255,.1);
      position:relative;
      overflow:hidden;
    }
    .dashboard-stage:before{
      content:"";
      position:absolute;
      inset:-110px -80px auto auto;
      width:260px;height:260px;
      border-radius:50%;
      background:rgba(24,169,153,.25);
      filter:blur(10px);
    }
    .dash-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      color:#dffdf6;
      margin-bottom:18px;
      position:relative;
      z-index:1;
    }
    .dash-dots{display:flex;gap:7px}
    .dash-dots i{
      width:10px;height:10px;border-radius:50%;
      background:rgba(255,255,255,.35);
    }
    .dash-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:14px;
      position:relative;
      z-index:1;
    }
    .dash-panel{
      border:1px solid rgba(255,255,255,.12);
      border-radius:22px;
      background:rgba(255,255,255,.07);
      padding:18px;
      color:#fff;
      backdrop-filter:blur(10px);
    }
    .dash-panel h3{
      font-size:16px;
      font-weight:900;
      margin:0 0 12px;
    }
    .filter-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:11px 0;
      border-bottom:1px solid rgba(255,255,255,.1);
      color:rgba(255,255,255,.78);
      font-size:14px;
    }
    .filter-row:last-child{border-bottom:none}
    .status-tag{
      padding:4px 9px;
      border-radius:999px;
      background:rgba(201,255,243,.13);
      color:#c9fff3;
      font-size:12px;
      font-weight:900;
      white-space:nowrap;
    }
    .bar{
      height:9px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      overflow:hidden;
      margin:12px 0 16px;
    }
    .bar span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--brand-2),var(--warning));
    }
    .stage-list{
      display:grid;
      gap:14px;
      margin-top:20px;
    }
    .stage-list li{
      list-style:none;
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 20px rgba(16,33,31,.04);
    }
    .check{
      width:24px;height:24px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--brand);
      font-size:13px;
      font-weight:900;
      flex:0 0 auto;
      margin-top:2px;
    }

    .steps-band{
      border-radius:34px;
      padding:34px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .step-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:0;
      margin-top:30px;
      border:1px solid var(--line);
      border-radius:26px;
      overflow:hidden;
    }
    .step-card{
      padding:28px;
      background:linear-gradient(180deg,#fff,#f8fffc);
      border-right:1px solid var(--line);
      min-height:230px;
      position:relative;
    }
    .step-card:last-child{border-right:none}
    .step-num{
      width:44px;height:44px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:rgba(24,169,153,.12);
      color:var(--brand);
      font-weight:950;
      margin-bottom:18px;
    }
    .step-card h3{
      font-size:21px;
      font-weight:950;
      margin:0 0 10px;
      letter-spacing:-.03em;
    }
    .step-card p{
      margin:0;
      color:var(--muted);
    }

    .benefit-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      margin-top:28px;
    }
    .price-card{
      border:1px solid var(--line);
      border-radius:26px;
      padding:24px;
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .price-card.featured{
      background:linear-gradient(180deg,#ffffff,#effff9);
      border-color:rgba(24,169,153,.45);
    }
    .price-card .tag{
      display:inline-flex;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(24,169,153,.1);
      color:var(--brand);
      font-weight:900;
      font-size:12px;
      margin-bottom:14px;
    }
    .price-card h3{
      font-size:20px;
      font-weight:950;
      margin:0 0 8px;
    }
    .price{
      font-size:34px;
      font-weight:950;
      letter-spacing:-.05em;
      color:var(--deep);
      margin:10px 0;
    }
    .price small{
      font-size:13px;
      color:var(--muted);
      font-weight:800;
      letter-spacing:0;
    }
    .price-card ul{
      padding:0;
      margin:16px 0 0;
      display:grid;
      gap:9px;
    }
    .price-card li{
      list-style:none;
      color:var(--muted);
      font-size:14px;
      display:flex;
      gap:8px;
    }
    .price-card li:before{
      content:"✓";
      color:var(--brand);
      font-weight:950;
    }

    .progress-panel{
      border-radius:34px;
      padding:34px;
      background:linear-gradient(135deg,#0b6b62,#071917);
      color:#fff;
      box-shadow:var(--shadow-lg);
      overflow:hidden;
      position:relative;
    }
    .progress-panel:before{
      content:"";
      position:absolute;
      width:320px;height:320px;
      border-radius:50%;
      background:rgba(255,184,77,.16);
      right:-120px;top:-100px;
    }
    .progress-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .progress-panel .section-title,
    .progress-panel .section-desc{color:#fff}
    .progress-panel .section-desc{opacity:.78}
    .task-card{
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.14);
      border-radius:24px;
      padding:22px;
      backdrop-filter:blur(12px);
    }
    .task-line{
      display:flex;
      gap:14px;
      align-items:center;
      padding:14px 0;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .task-line:last-child{border-bottom:none}
    .task-check{
      width:32px;height:32px;
      border-radius:12px;
      display:grid;
      place-items:center;
      background:rgba(201,255,243,.16);
      color:#c9fff3;
      font-weight:950;
      flex:0 0 auto;
    }
    .progress{
      height:12px;
      background:rgba(255,255,255,.12);
      border-radius:999px;
      overflow:hidden;
      margin-top:18px;
    }
    .progress-bar{
      background:linear-gradient(90deg,var(--warning),#c9fff3);
      border-radius:999px;
    }

    .review-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      margin-top:28px;
    }
    .score-card{
      border-radius:30px;
      padding:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
    }
    .score-num{
      font-size:74px;
      font-weight:950;
      letter-spacing:-.07em;
      line-height:1;
      color:var(--brand);
    }
    .stars{
      color:#ffae2b;
      letter-spacing:3px;
      margin:12px 0;
      font-size:20px;
    }
    .review-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .review-card{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .review-card p{
      margin:0 0 16px;
      color:var(--muted);
    }
    .reviewer{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:950;
    }
    .avatar{
      width:38px;height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:rgba(24,169,153,.12);
      color:var(--brand);
      font-weight:950;
    }

    .news-shell{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:24px;
      margin-top:28px;
    }
    .news-list{
      display:grid;
      gap:12px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:18px;
      padding:18px;
      border:1px solid var(--line);
      border-radius:22px;
      background:#fff;
      box-shadow:0 8px 20px rgba(16,33,31,.04);
      transition:var(--ease);
    }
    .news-date{
      width:72px;
      text-align:center;
      padding:8px 6px;
      border-radius:16px;
      background:var(--soft);
      color:var(--brand);
      font-weight:950;
      line-height:1.25;
    }
    .news-date small{
      display:block;
      color:var(--muted);
      font-size:12px;
      font-weight:800;
    }
    .news-item h3{
      font-size:17px;
      font-weight:950;
      margin:0 0 4px;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .arrow{
      width:36px;height:36px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:var(--brand);
      background:rgba(24,169,153,.1);
      font-weight:950;
    }
    .recommend-box{
      border-radius:28px;
      padding:24px;
      background:#10211f;
      color:#fff;
      box-shadow:var(--shadow-md);
      align-self:start;
    }
    .recommend-box h3{
      font-size:22px;
      font-weight:950;
      margin:0 0 12px;
    }
    .recommend-box p{
      color:rgba(255,255,255,.72);
      margin:0 0 18px;
    }
    .topic-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .topic-tags a{
      padding:8px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.08);
      color:#fff;
      font-weight:800;
      font-size:13px;
    }
    .topic-tags a:hover{
      background:rgba(201,255,243,.16);
      color:#c9fff3;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:28px;
      align-items:start;
    }
    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 8px 20px rgba(16,33,31,.04);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:950;
      color:var(--deep);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--brand);
      background:var(--soft);
    }
    .accordion-button:focus{
      border-color:transparent;
      box-shadow:none;
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 22px;
      background:var(--soft);
    }

    .download{
      padding-bottom:96px;
    }
    .download-card{
      border-radius:38px;
      padding:36px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(7,25,23,.98),rgba(11,107,98,.94)),
        radial-gradient(circle at 80% 20%,rgba(255,184,77,.22),transparent 32%);
      box-shadow:var(--shadow-lg);
      overflow:hidden;
      position:relative;
    }
    .download-card:before{
      content:"";
      position:absolute;
      width:260px;height:260px;
      border-radius:50%;
      background:rgba(201,255,243,.12);
      left:-120px;bottom:-120px;
    }
    .download-inner{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .download-card h2{
      font-size:clamp(28px,3vw,44px);
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.04em;
      margin:0 0 12px;
    }
    .download-card p{
      color:rgba(255,255,255,.76);
      margin:0;
      max-width:720px;
    }
    .download-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .safe-note{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      margin-top:22px;
      color:rgba(255,255,255,.75);
      font-size:14px;
    }

    .site-footer{
      background:#061412;
      color:rgba(255,255,255,.72);
      padding:46px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:28px;
      align-items:start;
      padding-bottom:28px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:950;
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{
      width:40px;height:40px;
      box-shadow:none;
    }
    .footer-links{
      display:flex;
      justify-content:flex-end;
      flex-wrap:wrap;
      gap:12px;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      color:rgba(255,255,255,.78);
      font-weight:800;
      font-size:14px;
    }
    .footer-links a:hover{
      color:#c9fff3;
      background:rgba(201,255,243,.1);
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:24px;
      font-size:14px;
    }

    @media (max-width:1024px){
      :root{--section:78px}
      .coupon-wall,
      .stage-wrap,
      .progress-grid,
      .review-layout,
      .news-shell,
      .faq-wrap{
        grid-template-columns:1fr;
      }
      .coupon-mini-col{
        grid-template-columns:repeat(2,1fr);
      }
      .benefit-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .download-inner{
        grid-template-columns:1fr;
      }
      .download-actions{
        justify-content:flex-start;
      }
    }
    @media (max-width:768px){
      .navbar-collapse{
        margin-top:12px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:22px;
        background:#fff;
        box-shadow:var(--shadow-sm);
      }
      .nav-pill{
        align-items:stretch;
        width:100%;
        margin-left:0;
      }
      .navbar-nav .nav-link{
        padding:12px 14px!important;
      }
      .header-badge{
        justify-content:center;
        margin:8px 0;
      }
      .header-cta{
        width:100%;
      }
      .hero{
        padding-top:36px;
      }
      .hero-shell,
      .steps-band,
      .progress-panel,
      .download-card{
        padding:22px;
        border-radius:28px;
      }
      .hero-copy{
        min-height:auto;
      }
      .coupon-main{
        min-height:330px;
      }
      .coupon-mini-col,
      .dash-grid,
      .step-row,
      .review-grid{
        grid-template-columns:1fr;
      }
      .step-card{
        border-right:none;
        border-bottom:1px solid var(--line);
        min-height:auto;
      }
      .step-card:last-child{
        border-bottom:none;
      }
      .news-item{
        grid-template-columns:1fr;
        gap:10px;
      }
      .arrow{display:none}
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-links{
        justify-content:flex-start;
      }
    }
    @media (max-width:520px){
      :root{--section:64px}
      .brand-text{max-width:210px;font-size:16px}
      .hero-shell{padding:14px}
      .hero-copy,.coupon-main,.mini-coupon,.metric-tile{border-radius:22px}
      .hero-actions .btn-brand,
      .hero-actions .btn-ghost,
      .download-actions .btn-brand,
      .download-actions .btn-darkline{
        width:100%;
      }
      .benefit-grid{
        grid-template-columns:1fr;
      }
      .section-title{
        letter-spacing:-.05em;
      }
      .score-num{
        font-size:58px;
      }
      .copyright{
        display:block;
      }
      .copyright span{
        display:block;
        margin-top:8px;
      }
    }

/* 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}