/* roulang page: index */
:root{
      --plum:#2b2033;
      --plum-2:#44304d;
      --coral:#e67961;
      --coral-dark:#c85e4d;
      --ivory:#fff9f4;
      --apricot:#f7eee8;
      --sage:#a9c7b8;
      --ink:#2d2630;
      --muted:#756b74;
      --line:#e8ddd7;
      --white:#fff;
      --radius:20px;
      --shadow:0 18px 50px rgba(62,38,48,.09);
      --ease:all .32s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--ivory);line-height:1.75;font-size:16px}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    :focus-visible{outline:3px solid rgba(230,121,97,.45);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 48px));margin:auto}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--coral)}
    h1,h2,h3{color:var(--plum);line-height:1.22;letter-spacing:-.035em}
    h1{font-size:clamp(42px,6vw,72px);max-width:760px}
    h2{font-size:clamp(30px,4vw,46px)}
    h3{font-size:22px}
    .section{padding:112px 0;border-top:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:42px}
    .section-head p{max-width:490px;color:var(--muted)}
    .topbar{height:78px;display:flex;align-items:center;position:sticky;top:0;z-index:20;background:rgba(255,249,244,.82);backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:var(--ease)}
    .topbar.scrolled{border-color:var(--line);box-shadow:0 8px 30px rgba(54,37,42,.06)}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{font-size:20px;font-weight:800;color:var(--plum);white-space:nowrap}
    .logo b{color:var(--coral)}
    .nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
    .nav-links a{font-size:14px;color:var(--muted);transition:var(--ease)}
    .nav-links a:hover,.nav-links a.active{color:var(--plum)}
    .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:13px 21px;font-weight:700;transition:var(--ease)}
    .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 20px rgba(230,121,97,.2)}
    .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .menu-btn{display:none;background:transparent;color:var(--plum);font-size:25px;width:44px;height:44px}
    .hero{padding:58px 0 74px;background:linear-gradient(90deg,rgba(255,249,244,.98) 35%,rgba(255,249,244,.78)),url('/assets/images/b44d7281e231a477.jpg') center/cover}
    .hero-inner{min-height:480px;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:70px}
    .hero h1{margin:22px 0 24px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:650px}
    .hero-actions{display:flex;gap:13px;margin-top:34px}
    .btn-secondary{border:1px solid var(--plum);color:var(--plum);background:transparent}
    .btn-secondary:hover{background:var(--plum);color:#fff;transform:translateY(-2px)}
    .hero-panel{background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.9);border-radius:28px;padding:28px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
    .status{color:#507d68;font-size:13px;font-weight:700}
    .status:before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--sage);margin-right:7px}
    .panel-title{font-size:25px;font-weight:800;color:var(--plum);margin-bottom:22px}
    .panel-list{display:grid;gap:12px}
    .panel-item{display:flex;justify-content:space-between;align-items:center;padding:15px 16px;background:var(--apricot);border-radius:13px;font-size:14px}
    .panel-item span:last-child{color:var(--coral-dark);font-weight:700}
    .info-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin-top:52px;padding-top:22px;gap:20px}
    .info-strip strong{display:block;color:var(--plum);font-size:17px}.info-strip span{color:var(--muted);font-size:13px}
    .metrics{background:var(--plum);color:#fff;border:0}
    .metrics h2,.metrics .eyebrow{color:#fff}.metrics .section-head p{color:#d7cbd8}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16)}
    .metric{padding:28px;background:var(--plum)}
    .metric strong{font-size:38px;color:var(--coral);display:block;line-height:1.2}.metric span{font-weight:700}.metric small{display:block;color:#cfc3d1;margin-top:8px;font-size:13px}
    .matrix{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-template-rows:1fr 1fr;gap:16px}
    .feature-card{padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:var(--ease)}
    .feature-card:hover,.news-item:hover,.quick-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#dec7c0}
    .feature-card.large{grid-row:span 2;background:var(--apricot);display:flex;flex-direction:column;justify-content:space-between}
    .card-num{color:var(--coral);font-weight:800;font-size:14px;margin-bottom:35px}
    .feature-card p{color:var(--muted);font-size:14px;margin-top:12px}.arrow{display:inline-block;color:var(--coral-dark);font-weight:700;margin-top:22px}
    .path{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line);background:#fff}
    .path-step{padding:26px 22px;border-right:1px solid var(--line);position:relative}.path-step:last-child{border:0}
    .path-step b{display:block;font-size:28px;color:var(--coral);margin-bottom:20px}.path-step strong{display:block;color:var(--plum);margin-bottom:8px}.path-step p{font-size:13px;color:var(--muted)}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-box{padding:30px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-box.good{background:var(--apricot);border-color:#e5c3b9}.compare-label{font-size:13px;color:var(--muted);margin-bottom:24px}.compare-box.good .compare-label{color:var(--coral-dark)}
    .compare li{list-style:none;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px}.compare li:last-child{border:0}.compare li:before{content:"—";color:var(--coral);margin-right:12px}
    .timeline{border-left:2px solid var(--line);margin-left:10px}.time-item{position:relative;padding:0 0 34px 38px}.time-item:last-child{padding-bottom:0}.time-item:before{content:"";position:absolute;left:-8px;top:5px;width:14px;height:14px;background:var(--coral);border:4px solid var(--ivory);border-radius:50%;box-shadow:0 0 0 1px var(--coral)}
    .time-meta{font-size:13px;color:var(--coral-dark);font-weight:700}.time-item h3{font-size:19px;margin:6px 0}.time-item p{color:var(--muted);font-size:14px}
    .news-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:55px}.news-list{display:grid;gap:0}.news-item{display:grid;grid-template-columns:92px 1fr auto;gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:var(--ease)}.news-date{font-size:13px;color:var(--muted)}.news-item h3{font-size:18px}.news-item p{font-size:13px;color:var(--muted);margin-top:5px}.tag{display:inline-block;padding:4px 9px;border-radius:6px;background:var(--apricot);color:var(--coral-dark);font-size:12px;font-weight:700;margin-bottom:8px}.news-side{background:var(--plum);color:#fff;padding:32px;border-radius:var(--radius);min-height:280px;display:flex;flex-direction:column;justify-content:space-between}.news-side h3{color:#fff}.news-side p{color:#d6cbd7;font-size:14px}.news-side a{color:var(--coral)}
    .check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.check{padding:24px;background:#fff;border:1px solid var(--line);border-radius:16px}.check b{display:flex;align-items:center;gap:10px;color:var(--plum);margin-bottom:12px}.check b:before{content:"✓";display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:var(--sage);color:#fff;font-size:13px}.check p{font-size:13px;color:var(--muted)}
    .quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.quick-item{padding:22px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:var(--ease);font-weight:700;color:var(--plum)}.quick-item span{display:block;color:var(--coral);font-size:13px;margin-bottom:12px}
    .faq-wrap{max-width:840px}.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:21px 0}summary{cursor:pointer;list-style:none;font-weight:700;color:var(--plum);display:flex;justify-content:space-between;gap:18px}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--coral);font-size:20px}details[open] summary:after{content:"－"}details p{color:var(--muted);font-size:14px;max-width:720px;padding:15px 30px 2px 0}
    .conversion{background:var(--apricot);border:0}.form-panel{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;align-items:center}.form-panel>div>p{color:var(--muted);margin-top:18px}.form-box{background:#fff;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{margin-bottom:15px}.field label{display:block;font-size:13px;font-weight:700;color:var(--plum);margin-bottom:7px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 13px;background:#fff;color:var(--ink);transition:var(--ease)}.field textarea{min-height:80px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--coral);outline:none;box-shadow:0 0 0 3px rgba(230,121,97,.13)}.privacy{font-size:12px;color:var(--muted);margin-top:12px}.form-message{display:none;margin-top:12px;padding:10px 12px;border-radius:8px;font-size:13px}.form-message.success{display:block;background:#edf6f0;color:#46705a}.topics{padding:58px 0;border-top:1px solid var(--line)}.topic-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.topic-links a{padding:11px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:14px;transition:var(--ease)}.topic-links a:hover{color:var(--coral-dark);border-color:var(--coral)}
    footer{background:var(--plum);color:#d7cbd8;padding:58px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}.footer-logo{font-size:21px;font-weight:800;color:#fff}.footer-logo b{color:var(--coral)}footer h3{color:#fff;font-size:15px;margin-bottom:16px}footer a{display:block;color:#cfc3d1;font-size:14px;margin:8px 0;transition:var(--ease)}footer a:hover{color:var(--coral)}.footer-note{font-size:13px;line-height:1.8}.copyright{padding-top:20px;border-top:1px solid rgba(255,255,255,.15);font-size:12px;color:#afa2b1;display:flex;justify-content:space-between;gap:15px}
    .reveal{opacity:0;transform:translateY(20px);transition:opacity .5s ease,transform .5s ease}.reveal.show{opacity:1;transform:none}
    @media(max-width:992px){.hero-inner{gap:35px}.matrix{grid-template-columns:1fr 1fr}.feature-card.large{grid-row:auto;grid-column:span 2}.path{grid-template-columns:repeat(3,1fr)}.path-step:nth-child(3){border-right:0}.path-step:nth-child(-n+3){border-bottom:1px solid var(--line)}.check-grid,.quick-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 32px,600px)}.topbar{height:68px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:18px 20px;background:var(--ivory);border-bottom:1px solid var(--line);box-shadow:0 16px 25px rgba(50,35,40,.08);flex-direction:column;align-items:stretch;gap:0}.nav-links.open{display:flex}.nav-links a{padding:13px 4px;border-bottom:1px solid var(--line)}.nav-cta{margin-top:12px;text-align:center}.hero{padding:45px 0 55px}.hero-inner{grid-template-columns:1fr;min-height:auto}.hero-panel{transform:none}.info-strip{grid-template-columns:1fr 1fr}.section{padding:76px 0}.section-head{display:block;margin-bottom:30px}.section-head p{margin-top:15px}.metric-grid{grid-template-columns:1fr 1fr}.news-layout,.form-panel{grid-template-columns:1fr;gap:30px}.news-side{min-height:220px}.compare{grid-template-columns:1fr}.path{grid-template-columns:1fr}.path-step,.path-step:nth-child(3){border-right:0;border-bottom:1px solid var(--line)}.path-step:last-child{border-bottom:0}.form-row{grid-template-columns:1fr}}
    @media(max-width:520px){h1{font-size:40px}.hero-copy{font-size:16px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.info-strip{grid-template-columns:1fr}.matrix{grid-template-columns:1fr}.feature-card.large{grid-column:auto}.metric-grid,.check-grid,.quick-grid{grid-template-columns:1fr}.news-item{grid-template-columns:1fr auto;gap:4px 12px}.news-date{grid-row:span 2}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}}