/* roulang page: index */
:root{
      --coral:#f26b55;--coral-dark:#d95342;--berry:#542b58;--berry-soft:#eee4f0;
      --cream:#fffaf4;--peach:#fff0e8;--ink:#29252b;--muted:#756d73;--line:#eaded8;
      --white:#fff;--shadow:0 16px 45px rgba(75,42,49,.10);--radius:22px;--small-radius:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    :focus-visible{outline:3px solid rgba(242,107,85,.38);outline-offset:3px}
    .container{max-width:1180px}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(255,250,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(234,222,216,.85)}
    .navbar{min-height:78px}
    .brand{display:flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:800;color:var(--berry);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:0 7px 16px rgba(242,107,85,.25)}
    .nav-link{font-size:.94rem;font-weight:650;color:var(--muted)!important;padding:.55rem .85rem!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--berry)!important;background:var(--berry-soft)}
    .nav-search{border:1px solid var(--line);border-radius:30px;padding:.55rem 1rem;color:var(--berry);font-weight:700}
    .nav-search:hover{background:var(--peach);border-color:var(--coral)}
    .hero{padding:78px 0 72px;background:linear-gradient(100deg,rgba(255,250,244,.98) 18%,rgba(255,250,244,.82) 55%,rgba(255,250,244,.32)),url('/assets/images/b896444882e98dc5.jpg') center/cover;min-height:560px;display:flex;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:.82rem;font-weight:800;letter-spacing:.08em;margin-bottom:16px}
    .eyebrow:before{content:"";width:26px;height:3px;border-radius:5px;background:var(--coral)}
    h1,h2,h3{color:var(--berry);font-weight:800;line-height:1.3;letter-spacing:-.02em}
    h1{font-size:clamp(2.3rem,5vw,4.45rem);max-width:700px;margin:0 0 22px}
    h2{font-size:clamp(1.8rem,3vw,2.65rem);margin:0 0 13px}
    h3{font-size:1.18rem;margin:0 0 8px}
    .hero-copy{max-width:700px;font-size:1.08rem;color:#5f555a;margin-bottom:28px}
    .btn-main,.btn-ghost{border-radius:13px;padding:.75rem 1.2rem;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:7px;transition:.25s ease}
    .btn-main{background:var(--coral);color:#fff;border:1px solid var(--coral);box-shadow:0 10px 22px rgba(242,107,85,.2)}
    .btn-main:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
    .btn-ghost{background:transparent;color:var(--berry);border:1px solid #cbb8c8}
    .btn-ghost:hover{background:var(--berry);color:#fff;border-color:var(--berry)}
    .search-box{background:rgba(255,255,255,.92);padding:7px;border:1px solid var(--line);border-radius:16px;max-width:520px;display:flex;box-shadow:var(--shadow);margin-top:25px}
    .search-box input{border:0;outline:0;background:transparent;flex:1;padding:8px 12px;min-width:0}
    .search-box button{border:0;background:var(--berry);color:#fff;border-radius:11px;padding:9px 17px;font-weight:700}
    .hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:17px}
    .tag{display:inline-flex;padding:5px 11px;border-radius:30px;background:#fff0e9;color:var(--coral-dark);font-size:.78rem;font-weight:700}
    .section{padding:88px 0}
    .section.alt{background:#fff5ef}
    .section.dark{background:var(--berry);color:#fdf5f0}
    .section.dark h2,.section.dark h3{color:#fff}
    .section-head{max-width:730px;margin-bottom:34px}
    .section-head p{color:var(--muted);margin:0}
    .dark .section-head p{color:#e2cedd}
    .metric-strip{margin-top:-38px;position:relative;z-index:2;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:24px}
    .metric{padding:8px 22px;border-right:1px solid var(--line)}
    .metric:last-child{border:0}
    .metric strong{display:block;font-size:2rem;color:var(--coral-dark);line-height:1.1}
    .metric span{font-size:.88rem;color:var(--muted)}
    .scene-grid{display:grid;grid-template-columns:1.25fr .85fr .85fr;grid-template-rows:auto auto;gap:16px}
    .scene-card{min-height:180px;padding:25px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);position:relative;overflow:hidden}
    .scene-card.large{grid-row:span 2;background:linear-gradient(145deg,#fff,#ffe4db)}
    .scene-card:hover,.feature-card:hover,.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .scene-card,.feature-card,.article-card{transition:.25s ease}
    .scene-card p,.feature-card p,.article-card p,.quick-item p{color:var(--muted);font-size:.92rem;margin-bottom:14px}
    .arrow{color:var(--coral-dark);font-weight:800}
    .feature-layout{display:grid;grid-template-columns:.8fr 1.5fr;gap:18px}
    .feature-index{background:var(--berry);border-radius:var(--radius);padding:28px;color:#fff}
    .feature-index h3{color:#fff;margin-bottom:20px}
    .feature-index div{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.18);color:#ecdce8}
    .feature-index div:last-child{border:0}
    .feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--small-radius);padding:22px}
    .feature-card.highlight{grid-column:span 2;background:#fff0e8;border-color:#f5c6ba}
    .icon-dot{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--berry-soft);color:var(--berry);font-weight:800;margin-bottom:13px}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-box{border-radius:var(--radius);padding:28px;border:1px solid var(--line);background:#fff}
    .compare-box.strong{background:var(--berry);color:#fff;border-color:var(--berry)}
    .compare-box.strong h3{color:#fff}
    .compare-list{list-style:none;padding:0;margin:20px 0 0}
    .compare-list li{padding:10px 0;border-bottom:1px dashed rgba(117,109,115,.25);font-size:.94rem}
    .compare-list li:before{content:"✓";color:var(--coral);font-weight:900;margin-right:9px}
    .strong .compare-list li{border-color:rgba(255,255,255,.2)}
    .strong .compare-list li:before{color:#ffc1a9}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
    .timeline:before{content:"";position:absolute;left:6%;right:6%;top:17px;height:2px;background:#f2b3a4}
    .milestone{position:relative;padding-top:46px}
    .milestone:before{content:"";position:absolute;top:8px;left:0;width:20px;height:20px;border:5px solid var(--coral);background:var(--cream);border-radius:50%;z-index:1}
    .milestone small{color:var(--coral-dark);font-weight:800}
    .milestone p{color:var(--muted);font-size:.9rem}
    .news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .feature-news{min-height:330px;border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;background:linear-gradient(0deg,rgba(44,22,43,.88),rgba(44,22,43,.05)),url('/assets/images/8ce59a6c538edb6a.jpg') center/cover}
    .feature-news h3{color:#fff;font-size:1.65rem}
    .news-list{display:grid;gap:12px}
    .article-card{background:#fff;border:1px solid var(--line);border-radius:var(--small-radius);padding:18px 20px}
    .article-meta{font-size:.78rem;color:var(--coral-dark);font-weight:800;margin-bottom:7px}
    .article-card p{margin:0;font-size:.87rem}
    .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .trust-item{padding:24px 18px;border:1px solid rgba(255,255,255,.16);border-radius:16px;background:rgba(255,255,255,.07)}
    .trust-item strong{display:block;color:#fff;margin-bottom:7px}
    .trust-item span{color:#e4d7e0;font-size:.88rem}
    .quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .quick-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
    .quick-item p{margin:0}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:12px;background:#fff}
    .accordion-button{font-weight:750;color:var(--berry);background:#fff;padding:19px 21px;box-shadow:none!important}
    .accordion-button:not(.collapsed){background:#fff0e8;color:var(--berry)}
    .accordion-body{color:var(--muted);padding:0 21px 19px;font-size:.94rem}
    .form-panel{background:linear-gradient(135deg,#fff0e8,#f0e5f2);border-radius:28px;padding:42px;border:1px solid var(--line)}
    .form-control,.form-select{border:1px solid #dfcec8;border-radius:11px;padding:.75rem .9rem;background:#fff}
    .form-control:focus,.form-select:focus{border-color:var(--coral);box-shadow:0 0 0 .2rem rgba(242,107,85,.14)}
    label{font-weight:700;color:var(--berry);font-size:.9rem;margin-bottom:6px}
    .form-note{font-size:.82rem;color:var(--muted);margin-top:12px}
    footer{background:#30232f;color:#eadce6;padding:52px 0 24px}
    footer .brand{color:#fff}
    footer h3{color:#fff;font-size:1rem;margin-bottom:14px}
    footer a{color:#d9c6d4;font-size:.9rem;display:block;margin:7px 0}
    footer a:hover{color:#ffb09d}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:18px;color:#bfaeba;font-size:.82rem}
    @media(max-width:991px){
      .navbar-collapse{background:var(--cream);padding:16px;border-radius:14px}
      .hero{padding:65px 0}
      .scene-grid,.feature-layout,.news-layout{grid-template-columns:1fr 1fr}
      .scene-card.large{grid-row:auto;grid-column:span 2}
      .feature-layout{grid-template-columns:1fr}
      .timeline{grid-template-columns:1fr 1fr}
      .timeline:before{display:none}
      .trust-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:767px){
      .section{padding:64px 0}
      .metric-strip{margin:0 12px;padding:15px 8px}
      .metric{padding:12px 8px;text-align:center;border-right:0}
      .metric strong{font-size:1.45rem}
      .metric span{font-size:.72rem}
      .scene-grid,.feature-grid,.compare,.news-layout,.quick-grid{grid-template-columns:1fr}
      .scene-card.large,.feature-card.highlight{grid-column:auto}
      .timeline{grid-template-columns:1fr}
      .trust-grid{grid-template-columns:1fr}
      .form-panel{padding:26px 19px}
      h1{font-size:2.35rem}
      .hero-copy{font-size:1rem}
    }
    @media(max-width:520px){
      .hero{min-height:auto;padding:54px 0 60px}
      .search-box{display:block;background:transparent;border:0;box-shadow:none;padding:0}
      .search-box input{width:100%;background:#fff;border:1px solid var(--line);border-radius:11px;margin-bottom:9px}
      .search-box button{width:100%}
      .hero .btn-main,.hero .btn-ghost{width:100%;margin-bottom:9px}
      .metric-strip{margin:0}
    }

/* 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}