/* roulang page: index */
:root{
      --brand:#ff4d2e;
      --brand-2:#ffb000;
      --brand-3:#6c3cff;
      --ink:#16171d;
      --muted:#6f7482;
      --soft:#fff6ef;
      --soft-2:#f7f4ff;
      --bg:#fffaf4;
      --card:#ffffff;
      --line:rgba(22,23,29,.1);
      --shadow:0 18px 55px rgba(42,24,10,.12);
      --shadow-sm:0 10px 28px rgba(42,24,10,.09);
      --radius:24px;
      --radius-sm:16px;
      --nav-h:78px;
      --container:1180px;
      --focus:0 0 0 .25rem rgba(255,77,46,.18);
    }
    *{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 10% 5%, rgba(255,176,0,.14), transparent 30%),
        radial-gradient(circle at 88% 10%, rgba(108,60,255,.12), transparent 28%),
        linear-gradient(180deg,#fffaf4 0%,#fff 42%,#fff8f0 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:.22s ease}
    a:hover{color:var(--brand)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,77,46,.18);color:var(--ink)}
    .container-xl{max-width:var(--container)}
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:blur(18px);
      background:rgba(255,250,244,.86);
      border-bottom:1px solid rgba(22,23,29,.08);
    }
    .nav-shell{
      min-height:var(--nav-h);
      display:grid;
      grid-template-columns:auto minmax(240px,1fr) auto;
      gap:22px;
      align-items:center;
    }
    .brand-logo{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.02em;
      white-space:nowrap;
      color:var(--ink);
    }
    .brand-mark{
      width:42px;height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 28px rgba(255,77,46,.28);
      transform:skewX(-8deg);
    }
    .brand-text{font-size:18px}
    .nav-search{
      position:relative;
      width:100%;
      max-width:560px;
      justify-self:center;
    }
    .nav-search i{
      position:absolute;
      left:18px;
      top:50%;
      transform:translateY(-50%);
      color:#a06751;
      pointer-events:none;
    }
    .nav-search input{
      width:100%;
      height:48px;
      border:1px solid rgba(255,77,46,.18);
      background:#fff;
      border-radius:999px;
      padding:0 122px 0 48px;
      outline:none;
      box-shadow:0 12px 30px rgba(255,77,46,.07);
      color:var(--ink);
    }
    .nav-search input:focus{
      border-color:rgba(255,77,46,.48);
      box-shadow:var(--focus),0 14px 34px rgba(255,77,46,.1);
    }
    .nav-search .search-chip{
      position:absolute;
      right:8px;
      top:7px;
      border:0;
      height:34px;
      padding:0 16px;
      border-radius:999px;
      background:var(--ink);
      color:#fff;
      font-weight:800;
    }
    .nav-search .search-chip:hover{background:var(--brand);transform:translateY(-1px)}
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      justify-content:flex-end;
    }
    .nav-link-main{
      padding:10px 16px;
      border-radius:999px;
      font-weight:800;
      color:var(--ink);
    }
    .nav-link-main:hover,.nav-link-main.active{
      background:#fff;
      color:var(--brand);
      box-shadow:0 10px 26px rgba(42,24,10,.08);
    }
    .mobile-menu-btn{
      display:none;
      width:44px;height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      color:var(--ink);
    }
    .btn-brand,.btn-dark-contrast,.btn-ghost{
      border:0;
      border-radius:999px;
      padding:13px 22px;
      font-weight:900;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      transition:.22s ease;
      white-space:nowrap;
    }
    .btn-brand{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),#ff7b2e);
      box-shadow:0 16px 36px rgba(255,77,46,.28);
    }
    .btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 44px rgba(255,77,46,.34)}
    .btn-dark-contrast{
      background:var(--ink);
      color:#fff;
      box-shadow:0 16px 36px rgba(22,23,29,.16);
    }
    .btn-dark-contrast:hover{background:#000;color:#fff;transform:translateY(-2px)}
    .btn-ghost{
      color:var(--ink);
      background:#fff;
      border:1px solid rgba(22,23,29,.12);
    }
    .btn-ghost:hover{color:var(--brand);border-color:rgba(255,77,46,.28);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      font-weight:800;
      font-size:13px;
      color:#7b2b18;
      background:rgba(255,77,46,.1);
      border:1px solid rgba(255,77,46,.16);
    }
    main{position:relative}
    .section{padding:76px 0}
    .section.band{
      background:#fff;
      clip-path:polygon(0 4%,100% 0,100% 96%,0 100%);
      margin:12px 0;
    }
    .section-head{
      max-width:760px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:var(--brand);
      font-weight:900;
      letter-spacing:.08em;
      font-size:13px;
      text-transform:uppercase;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      font-weight:950;
      letter-spacing:-.04em;
      margin:0 0 14px;
    }
    .section-desc{
      color:var(--muted);
      font-size:17px;
      margin:0;
    }
    .hero{
      position:relative;
      min-height:620px;
      padding:86px 0 68px;
      overflow:hidden;
      background:
        linear-gradient(112deg,rgba(22,23,29,.96) 0%,rgba(42,24,10,.92) 46%,rgba(255,77,46,.88) 100%);
      color:#fff;
      clip-path:polygon(0 0,100% 0,100% 89%,0 100%);
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:-80px -40px auto auto;
      width:520px;height:520px;
      background:radial-gradient(circle,rgba(255,176,0,.46),transparent 65%);
      filter:blur(6px);
    }
    .hero:after{
      content:"";
      position:absolute;
      inset:auto auto -120px -100px;
      width:460px;height:460px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(108,60,255,.28),transparent 66%);
    }
    .hero-wrap{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:46px;
      align-items:center;
    }
    .hero-sale-tag{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:10px 16px;
      border-radius:999px;
      color:#24110a;
      background:#ffd84d;
      font-weight:950;
      box-shadow:0 18px 34px rgba(255,216,77,.2);
      transform:rotate(-1.5deg);
      margin-bottom:18px;
    }
    .hero h1{
      font-size:clamp(40px,6.2vw,72px);
      line-height:.98;
      letter-spacing:-.065em;
      font-weight:1000;
      margin:0 0 22px;
    }
    .hero h1 span{
      color:#ffd84d;
      text-shadow:0 12px 40px rgba(255,216,77,.2);
    }
    .hero-intro{
      max-width:690px;
      font-size:18px;
      color:rgba(255,255,255,.82);
      margin:0 0 26px;
    }
    .hero-actions{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-bottom:28px;
    }
    .hero .btn-ghost{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.2);
      backdrop-filter:blur(10px);
    }
    .hero .btn-ghost:hover{background:#fff;color:var(--brand)}
    .hero-points{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }
    .hero-point{
      min-width:140px;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(12px);
    }
    .hero-point strong{
      display:block;
      font-size:24px;
      line-height:1;
      color:#ffd84d;
      font-weight:1000;
    }
    .hero-point span{
      font-size:13px;
      color:rgba(255,255,255,.72);
    }
    .promo-stage{
      position:relative;
      min-height:410px;
      border-radius:34px;
      padding:24px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.18),rgba(255,255,255,.08));
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 28px 80px rgba(0,0,0,.22);
      backdrop-filter:blur(18px);
      transform:rotate(1.5deg);
    }
    .burst{
      position:absolute;
      right:-18px;
      top:-26px;
      width:126px;height:126px;
      display:grid;
      place-items:center;
      text-align:center;
      padding:16px;
      color:#2b1606;
      background:#ffd84d;
      font-weight:1000;
      line-height:1.05;
      clip-path:polygon(50% 0%,61% 22%,85% 11%,78% 36%,100% 50%,78% 64%,85% 89%,61% 78%,50% 100%,39% 78%,15% 89%,22% 64%,0% 50%,22% 36%,15% 11%,39% 22%);
      filter:drop-shadow(0 18px 24px rgba(0,0,0,.22));
      transform:rotate(10deg);
    }
    .stage-card{
      background:#fff;
      color:var(--ink);
      border-radius:26px;
      padding:22px;
      box-shadow:0 18px 40px rgba(0,0,0,.16);
      margin-bottom:16px;
    }
    .stage-card.featured{
      background:linear-gradient(135deg,#fff,#fff7e0);
      border:2px solid rgba(255,216,77,.86);
      transform:translateX(-16px);
    }
    .stage-row{
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
      border-top:1px dashed rgba(22,23,29,.14);
      padding-top:14px;
      margin-top:14px;
    }
    .stage-title{
      font-weight:950;
      font-size:18px;
      margin-bottom:4px;
    }
    .stage-sub{color:var(--muted);font-size:14px}
    .heat{
      padding:7px 10px;
      border-radius:999px;
      color:#fff;
      font-size:12px;
      font-weight:900;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      white-space:nowrap;
    }
    .ladder-wrap{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:28px;
      align-items:stretch;
    }
    .deal-panel{
      padding:30px;
      border-radius:var(--radius);
      background:linear-gradient(135deg,#22120d,#422019);
      color:#fff;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .deal-panel:after{
      content:"";
      position:absolute;
      right:-60px;bottom:-70px;
      width:210px;height:210px;
      border-radius:50%;
      background:rgba(255,176,0,.22);
    }
    .countdown{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      margin-top:22px;
      position:relative;
      z-index:2;
    }
    .timebox{
      padding:16px 12px;
      border-radius:18px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
      text-align:center;
    }
    .timebox strong{display:block;font-size:28px;color:#ffd84d;font-weight:1000;line-height:1}
    .timebox span{font-size:12px;color:rgba(255,255,255,.74)}
    .tier-list{display:grid;gap:14px}
    .tier-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      transition:.22s ease;
    }
    .tier-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(255,77,46,.24)}
    .tier-index{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:1000;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
    }
    .tier-item h3{font-size:18px;font-weight:950;margin:0 0 3px}
    .tier-item p{margin:0;color:var(--muted);font-size:14px}
    .tier-price{font-size:18px;font-weight:1000;color:var(--brand);white-space:nowrap}
    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .plan-card{
      position:relative;
      padding:26px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      transition:.22s ease;
      overflow:hidden;
    }
    .plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .plan-card.highlight{
      border:2px solid rgba(255,77,46,.55);
      transform:translateY(-8px);
    }
    .plan-card.highlight:hover{transform:translateY(-12px)}
    .plan-card .ribbon{
      position:absolute;
      top:18px;right:-38px;
      width:142px;
      text-align:center;
      padding:6px 0;
      background:var(--brand);
      color:#fff;
      transform:rotate(35deg);
      font-size:12px;
      font-weight:900;
    }
    .plan-name{font-size:22px;font-weight:1000;margin:0 0 6px}
    .plan-copy{color:var(--muted);font-size:14px;margin:0 0 18px}
    .plan-value{
      font-size:36px;
      font-weight:1000;
      line-height:1;
      margin-bottom:20px;
      letter-spacing:-.04em;
    }
    .plan-value small{font-size:14px;color:var(--muted);font-weight:800}
    .check-list{
      list-style:none;
      padding:0;
      margin:0 0 22px;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      color:#3c4049;
      font-size:14px;
    }
    .check-list i{color:var(--brand);margin-top:5px}
    .guarantee-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .guarantee-item{
      padding:20px;
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(255,77,46,.14);
      box-shadow:var(--shadow-sm);
      display:flex;
      gap:14px;
      align-items:flex-start;
    }
    .guarantee-icon{
      width:46px;height:46px;
      flex:0 0 46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:var(--soft);
      color:var(--brand);
      font-size:20px;
    }
    .guarantee-item h3{font-size:16px;margin:0 0 4px;font-weight:950}
    .guarantee-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
    .hot-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .hot-main{
      border-radius:30px;
      padding:30px;
      min-height:360px;
      color:#fff;
      background:
        linear-gradient(120deg,rgba(22,23,29,.92),rgba(255,77,46,.72)),
        radial-gradient(circle at 85% 18%,rgba(255,216,77,.55),transparent 30%);
      box-shadow:var(--shadow);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .hot-main:after{
      content:"";
      position:absolute;
      right:-40px;bottom:-68px;
      width:220px;height:220px;
      border-radius:42px;
      background:rgba(255,255,255,.08);
      transform:rotate(24deg);
    }
    .hot-main h3{font-size:32px;font-weight:1000;letter-spacing:-.04em;margin:14px 0 10px}
    .hot-main p{max-width:560px;color:rgba(255,255,255,.78);margin:0}
    .hot-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
    .hot-badges span{
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
      font-size:13px;
      font-weight:800;
    }
    .hot-side{display:grid;gap:14px}
    .mini-hot{
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:center;
      transition:.22s ease;
    }
    .mini-hot:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:rgba(255,77,46,.22)}
    .mini-hot h3{font-size:17px;font-weight:950;margin:0 0 4px}
    .mini-hot p{margin:0;color:var(--muted);font-size:13px}
    .mini-rank{
      width:40px;height:40px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:var(--soft-2);
      color:var(--brand-3);
      font-weight:1000;
    }
    .topic-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }
    .topic-tag{
      padding:12px 16px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 18px rgba(42,24,10,.06);
      font-weight:850;
      color:#363943;
    }
    .topic-tag:hover{
      transform:translateY(-2px) rotate(-.5deg);
      border-color:rgba(255,77,46,.28);
      color:var(--brand);
      box-shadow:var(--shadow-sm);
    }
    .proof-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:26px;
      align-items:stretch;
    }
    .proof-score{
      padding:30px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .score-num{
      font-size:64px;
      font-weight:1000;
      letter-spacing:-.06em;
      line-height:1;
      color:var(--brand);
    }
    .stars{color:#ffb000;letter-spacing:3px;margin:10px 0}
    .proof-score p{color:var(--muted);margin:0}
    .logo-wall{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
    }
    .logo-cell{
      min-height:86px;
      display:grid;
      place-items:center;
      text-align:center;
      padding:16px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 10px 22px rgba(42,24,10,.06);
      font-weight:950;
      color:#464a55;
    }
    .news-layout{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:26px;
      align-items:start;
    }
    .news-list{
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--line);
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:#fff8f2}
    .news-date{
      width:68px;
      padding:9px 8px;
      border-radius:16px;
      background:var(--soft);
      color:var(--brand);
      text-align:center;
      font-weight:1000;
      line-height:1.15;
    }
    .news-date small{display:block;color:#b15c42;font-size:11px;font-weight:800}
    .news-item h3{font-size:17px;font-weight:950;margin:0 0 3px}
    .news-item p{margin:0;color:var(--muted);font-size:13px}
    .news-arrow{
      width:36px;height:36px;
      display:grid;
      place-items:center;
      border-radius:12px;
      background:#f7f7f8;
      color:#8a8f9b;
    }
    .news-item:hover .news-arrow{background:var(--brand);color:#fff}
    .recommend-box{
      position:sticky;
      top:100px;
      padding:24px;
      border-radius:var(--radius);
      background:linear-gradient(135deg,#fff,#fff1e8);
      border:1px solid rgba(255,77,46,.16);
      box-shadow:var(--shadow-sm);
    }
    .recommend-box h3{font-size:22px;font-weight:1000;margin:0 0 12px}
    .recommend-box p{color:var(--muted);margin:0 0 18px}
    .recommend-links{display:grid;gap:10px;margin-bottom:18px}
    .recommend-links a{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:16px;
      background:#fff;
      border:1px solid rgba(22,23,29,.08);
      font-weight:850;
    }
    .recommend-links a:hover{transform:translateX(3px);border-color:rgba(255,77,46,.22)}
    .faq-grid{
      display:grid;
      grid-template-columns:.75fr 1.25fr;
      gap:26px;
      align-items:start;
    }
    .faq-note{
      padding:28px;
      border-radius:var(--radius);
      background:var(--ink);
      color:#fff;
      position:sticky;
      top:100px;
      box-shadow:var(--shadow);
    }
    .faq-note p{color:rgba(255,255,255,.72);margin:12px 0 0}
    .accordion{display:grid;gap:12px}
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:20px!important;
      overflow:hidden;
      box-shadow:0 10px 24px rgba(42,24,10,.05);
      background:#fff;
    }
    .accordion-button{
      font-weight:950;
      padding:19px 22px;
      color:var(--ink);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--brand);
      background:#fff8f2;
    }
    .accordion-button:focus{box-shadow:var(--focus)!important;border-color:transparent}
    .accordion-body{color:var(--muted);padding:0 22px 20px}
    .cta-section{
      padding:82px 0 92px;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:42px;
      color:#fff;
      background:
        linear-gradient(120deg,rgba(255,77,46,.96),rgba(255,176,0,.86)),
        radial-gradient(circle at 80% 20%,rgba(255,255,255,.45),transparent 26%);
      box-shadow:0 24px 76px rgba(255,77,46,.26);
    }
    .cta-card:before{
      content:"";
      position:absolute;
      right:-70px;
      top:-80px;
      width:260px;height:260px;
      border-radius:50%;
      background:rgba(255,255,255,.18);
    }
    .cta-inner{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1fr 420px;
      gap:34px;
      align-items:center;
    }
    .cta-card h2{
      font-size:clamp(30px,4vw,48px);
      line-height:1.14;
      font-weight:1000;
      letter-spacing:-.05em;
      margin:0 0 14px;
    }
    .cta-card p{color:rgba(255,255,255,.84);margin:0;max-width:650px}
    .lead-form{
      padding:18px;
      border-radius:26px;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.2);
      backdrop-filter:blur(12px);
      display:grid;
      gap:12px;
    }
    .lead-form input,.lead-form select{
      width:100%;
      border:0;
      outline:none;
      border-radius:16px;
      padding:14px 15px;
      background:#fff;
      color:var(--ink);
    }
    .lead-form input:focus,.lead-form select:focus{box-shadow:0 0 0 .24rem rgba(255,255,255,.32)}
    .lead-form .btn-dark-contrast{width:100%}
    .form-tip{font-size:12px;color:rgba(255,255,255,.78);margin:0;text-align:center}
    .site-footer{
      background:#15161b;
      color:#fff;
      padding:58px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:30px;
      align-items:start;
      padding-bottom:30px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:20px;
      font-weight:1000;
      margin-bottom:12px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-copy{color:rgba(255,255,255,.66);max-width:680px;margin:0}
    .footer-links{
      display:flex;
      justify-content:flex-end;
      gap:10px;
      flex-wrap:wrap;
    }
    .footer-links a{
      padding:10px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      color:rgba(255,255,255,.8);
      font-weight:800;
    }
    .footer-links a:hover{background:rgba(255,77,46,.22);color:#fff}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.52);
      font-size:13px;
    }
    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:999;
      width:min(680px,calc(100% - 24px));
      padding:10px;
      border-radius:999px;
      background:rgba(22,23,29,.88);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(14px);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      box-shadow:0 18px 46px rgba(0,0,0,.22);
    }
    .floating-cta span{color:#fff;font-weight:900;padding-left:14px}
    .floating-cta .btn-brand{padding:10px 17px}
    @media (max-width:1024px){
      .nav-shell{grid-template-columns:auto 1fr auto;gap:14px}
      .brand-text{max-width:220px;overflow:hidden;text-overflow:ellipsis}
      .hero-wrap,.ladder-wrap,.hot-layout,.proof-grid,.news-layout,.faq-grid,.cta-inner{grid-template-columns:1fr}
      .promo-stage{transform:none}
      .stage-card.featured{transform:none}
      .compare-grid{grid-template-columns:1fr}
      .plan-card.highlight{transform:none}
      .guarantee-strip{grid-template-columns:repeat(2,1fr)}
      .recommend-box,.faq-note{position:static}
      .cta-inner{gap:24px}
    }
    @media (max-width:768px){
      :root{--nav-h:auto}
      .site-header{position:relative}
      .nav-shell{
        padding:14px 0;
        grid-template-columns:1fr auto;
      }
      .nav-search{
        order:3;
        grid-column:1 / -1;
        max-width:none;
      }
      .nav-links{
        display:none;
        grid-column:1 / -1;
        justify-content:flex-start;
        padding-top:4px;
      }
      .nav-links.open{display:flex}
      .mobile-menu-btn{display:grid;place-items:center}
      .section{padding:58px 0}
      .section.band{clip-path:none}
      .hero{
        padding:62px 0 70px;
        clip-path:polygon(0 0,100% 0,100% 95%,0 100%);
      }
      .hero-wrap{gap:26px}
      .hero-point{flex:1 1 130px}
      .burst{right:0;top:-18px;width:104px;height:104px;font-size:13px}
      .guarantee-strip,.logo-wall{grid-template-columns:1fr 1fr}
      .news-item{grid-template-columns:1fr auto}
      .news-date{grid-row:1;grid-column:1 / -1;width:max-content}
      .news-arrow{grid-column:2;grid-row:2}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .floating-cta{border-radius:22px;align-items:stretch;flex-direction:column}
      .floating-cta span{padding:4px 8px 0}
      .floating-cta .btn-brand{width:100%}
    }
    @media (max-width:520px){
      .brand-text{font-size:16px;max-width:230px}
      .nav-search input{height:46px;padding-right:92px}
      .nav-search .search-chip{padding:0 12px;font-size:13px}
      .hero h1{font-size:38px}
      .hero-intro,.section-desc{font-size:15px}
      .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
      .promo-stage{padding:16px;border-radius:26px;min-height:auto}
      .stage-row{align-items:flex-start;flex-direction:column}
      .countdown{grid-template-columns:1fr 1fr 1fr}
      .tier-item{grid-template-columns:1fr}
      .tier-index{width:42px;height:42px}
      .compare-grid,.guarantee-strip,.logo-wall{grid-template-columns:1fr}
      .hot-main{padding:24px;min-height:300px}
      .hot-main h3{font-size:26px}
      .mini-hot{align-items:flex-start}
      .cta-card{padding:26px;border-radius:28px}
      .lead-form{padding:14px}
      .copyright{display:block}
    }

/* 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}