/* roulang page: index */
:root {
      --coral:#F05A68;
      --coral-dark:#d84859;
      --berry:#6E3159;
      --berry-deep:#47243f;
      --apricot:#FFC98B;
      --cream:#FFF9F4;
      --peach:#FFF0E8;
      --mint:#B9E4D0;
      --ink:#33252d;
      --muted:#806d76;
      --line:#eadbd5;
      --white:#fffdfb;
      --radius-lg:24px;
      --radius-md:16px;
      --shadow:0 18px 45px rgba(110,49,89,.10);
    }
    * { box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body {
      margin:0;
      color:var(--ink);
      background:var(--cream);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.75;
      overflow-x:hidden;
    }
    a { color:inherit; text-decoration:none; }
    img { display:block; max-width:100%; }
    button, input, textarea { font:inherit; }
    button, a { -webkit-tap-highlight-color:transparent; }
    .container { width:min(1160px, calc(100% - 40px)); margin:0 auto; }
    .site-header {
      position:sticky; top:0; z-index:50;
      background:rgba(255,249,244,.96);
      border-bottom:1px solid rgba(234,219,213,.9);
    }
    .nav-shell { min-height:76px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
    .brand { display:inline-flex; align-items:center; gap:11px; font-weight:800; color:var(--berry); letter-spacing:-.02em; }
    .brand-mark {
      width:38px; height:38px; border-radius:13px; display:grid; place-items:center;
      color:#fff; background:var(--coral); box-shadow:0 7px 16px rgba(240,90,104,.25);
      font-size:18px; font-weight:900;
    }
    .desktop-nav { display:flex; align-items:center; gap:24px; margin-left:auto; }
    .desktop-nav a { color:var(--muted); font-size:14px; font-weight:700; position:relative; padding:26px 2px; }
    .desktop-nav a:hover, .desktop-nav a.active { color:var(--coral); }
    .desktop-nav a.active:after { content:""; position:absolute; left:0; right:0; bottom:16px; height:3px; border-radius:4px; background:var(--coral); }
    .nav-cta, .btn-primary {
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      min-height:46px; padding:0 20px; border-radius:12px; border:1px solid transparent;
      background:var(--berry); color:#fff; font-weight:800; transition:.22s ease;
    }
    .nav-cta:hover, .btn-primary:hover { background:var(--coral); box-shadow:0 10px 22px rgba(240,90,104,.24); transform:translateY(-2px); }
    .nav-cta:active, .btn-primary:active, .btn-secondary:active { transform:scale(.98); }
    .btn-secondary {
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      min-height:46px; padding:0 20px; border-radius:12px; border:1px solid var(--line);
      color:var(--berry); background:#fffaf7; font-weight:800; transition:.22s ease;
    }
    .btn-secondary:hover { border-color:var(--coral); color:var(--coral); background:#fff; }
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
      outline:3px solid rgba(240,90,104,.35); outline-offset:3px;
    }
    .menu-toggle { display:none; width:44px; height:44px; border:1px solid var(--line); border-radius:12px; background:#fffaf7; color:var(--berry); }
    .mobile-menu { display:none; border-top:1px solid var(--line); padding:14px 20px 20px; background:var(--cream); }
    .mobile-menu.open { display:block; }
    .mobile-menu a { display:block; padding:12px 0; color:var(--berry); font-weight:700; border-bottom:1px solid var(--line); }
    .eyebrow { display:inline-flex; align-items:center; gap:8px; color:var(--coral); font-size:13px; font-weight:900; letter-spacing:.08em; }
    .eyebrow:before { content:""; width:24px; height:3px; border-radius:4px; background:var(--coral); }
    .hero {
      position:relative; overflow:hidden; padding:82px 0 76px;
      background:
        linear-gradient(90deg,rgba(255,249,244,.98) 0%,rgba(255,249,244,.88) 48%,rgba(255,240,232,.42) 100%),
        url('/assets/images/018ce29ad6381720.jpg') center/cover;
    }
    .hero:after { content:""; position:absolute; width:360px; height:360px; right:-120px; top:-140px; border-radius:50%; background:rgba(255,201,139,.32); }
    .hero-grid { position:relative; z-index:1; display:grid; grid-template-columns:1.04fr .96fr; gap:70px; align-items:center; }
    .hero h1 { margin:16px 0 20px; color:var(--berry-deep); font-size:clamp(36px,5vw,64px); line-height:1.12; letter-spacing:-.055em; font-weight:900; }
    .hero-copy { max-width:650px; font-size:17px; color:var(--muted); }
    .hero-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:30px; }
    .status-row { display:flex; flex-wrap:wrap; gap:10px; margin-top:28px; }
    .pill { display:inline-flex; align-items:center; gap:7px; border-radius:999px; padding:7px 12px; font-size:12px; font-weight:800; color:var(--berry); background:#fff; border:1px solid var(--line); }
    .pill-dot { width:7px; height:7px; border-radius:50%; background:var(--mint); }
    .hero-board { position:relative; min-height:390px; }
    .hero-image { position:absolute; right:0; top:0; width:78%; height:310px; object-fit:cover; border-radius:28px; box-shadow:var(--shadow); border:10px solid rgba(255,255,255,.78); transform:rotate(3deg); }
    .info-sticker { position:absolute; left:0; bottom:25px; width:220px; padding:20px; border-radius:20px; background:var(--berry); color:#fff; box-shadow:var(--shadow); transform:rotate(-4deg); }
    .info-sticker strong { display:block; font-size:28px; line-height:1.1; margin:7px 0; }
    .mini-note { position:absolute; right:6px; bottom:-8px; padding:12px 16px; background:var(--apricot); color:var(--berry-deep); border-radius:12px; font-size:12px; font-weight:900; }
    section { padding:92px 0; }
    .section-alt { background:#fff; }
    .section-soft { background:var(--peach); }
    .section-heading { max-width:700px; margin-bottom:38px; }
    .section-heading h2 { margin:10px 0 14px; color:var(--berry-deep); font-size:clamp(28px,4vw,43px); line-height:1.2; letter-spacing:-.04em; font-weight:900; }
    .section-heading p { margin:0; color:var(--muted); font-size:16px; }
    .split { display:grid; grid-template-columns:.9fr 1.1fr; gap:48px; align-items:start; }
    .problem-list { border-top:1px solid var(--line); }
    .problem-item { display:grid; grid-template-columns:54px 1fr; gap:16px; padding:22px 0; border-bottom:1px solid var(--line); }
    .number-box { width:42px; height:42px; border-radius:13px; display:grid; place-items:center; color:var(--coral); background:#fff0ed; font-weight:900; }
    .problem-item h3, .step h3, .scenario h3 { margin:0 0 4px; font-size:17px; color:var(--berry); }
    .problem-item p, .step p, .scenario p { margin:0; color:var(--muted); font-size:14px; }
    .download-card { display:grid; grid-template-columns:1fr 280px; gap:28px; padding:30px; border:1px solid var(--line); border-radius:var(--radius-lg); background:#fff; box-shadow:var(--shadow); }
    .download-card h3 { margin:0 0 10px; color:var(--berry-deep); font-size:25px; }
    .download-card > p { color:var(--muted); margin:0 0 22px; }
    .meta-list { display:grid; grid-template-columns:1fr 1fr; gap:11px; margin:20px 0 26px; }
    .meta-list div { padding:13px; border-radius:12px; background:var(--cream); }
    .meta-list dt { color:var(--muted); font-size:12px; }
    .meta-list dd { margin:2px 0 0; color:var(--berry); font-size:14px; font-weight:800; }
    .download-side { padding:22px; border-radius:18px; background:var(--berry); color:#fff; display:flex; flex-direction:column; justify-content:space-between; min-height:230px; }
    .download-side .btn-primary { background:var(--coral); }
    .download-side .btn-primary:hover { background:#ff7883; }
    .download-side small { color:#f9dce0; }
    .steps { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; position:relative; }
    .steps:before { content:""; position:absolute; top:25px; left:9%; right:9%; height:2px; background:var(--line); }
    .step { position:relative; z-index:1; padding:0 10px; }
    .step-num { width:52px; height:52px; display:grid; place-items:center; margin-bottom:18px; border-radius:17px; background:var(--coral); color:#fff; font-size:19px; font-weight:900; box-shadow:0 7px 16px rgba(240,90,104,.2); }
    .timeline { border-left:2px solid var(--line); margin-left:10px; }
    .timeline-row { position:relative; display:grid; grid-template-columns:170px 1fr auto; gap:24px; align-items:center; padding:22px 0 22px 28px; border-bottom:1px solid var(--line); }
    .timeline-row:before { content:""; position:absolute; left:-9px; width:16px; height:16px; border-radius:50%; background:var(--coral); border:4px solid var(--peach); }
    .timeline-date { color:var(--coral); font-size:13px; font-weight:900; }
    .timeline-row strong { color:var(--berry); }
    .timeline-row span { color:var(--muted); font-size:13px; }
    .notice-grid { display:grid; grid-template-columns:1fr 1fr; gap:28px; }
    .notice-box { padding:28px; border-radius:var(--radius-lg); background:#fff7e9; border:1px solid #f5d9ac; }
    .notice-box h3 { margin:0 0 14px; color:var(--berry); }
    .check-list { list-style:none; padding:0; margin:0; display:grid; gap:12px; }
    .check-list li { display:flex; gap:10px; color:var(--muted); font-size:14px; }
    .check-list li:before { content:"✓"; color:#479c7b; font-weight:900; }
    .feedback-box { max-width:850px; padding:42px; border-radius:30px; background:var(--berry); color:#fff; position:relative; overflow:hidden; }
    .feedback-box:after { content:"“"; position:absolute; right:25px; top:-30px; font-size:180px; line-height:1; color:rgba(255,255,255,.08); }
    .feedback-box h3 { margin:0 0 16px; font-size:24px; }
    .feedback-box p { position:relative; z-index:1; margin:0; color:#f9dfe3; font-size:17px; }
    .feedback-tag { display:inline-block; margin-top:24px; padding:7px 12px; border-radius:999px; background:rgba(255,255,255,.13); color:#fff; font-size:12px; }
    .device-grid { display:grid; grid-template-columns:1.15fr .85fr; gap:28px; }
    .matrix { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
    .matrix-card { padding:20px; border:1px solid var(--line); border-radius:18px; background:#fff; }
    .matrix-card strong { display:block; color:var(--berry); margin-bottom:5px; }
    .matrix-card span { color:var(--muted); font-size:13px; }
    .device-image { width:100%; height:290px; object-fit:cover; border-radius:24px; }
    .scenario-grid { display:grid; grid-template-columns:1fr 1fr 1fr; gap:18px; }
    .scenario { padding:25px; border-radius:20px; background:#fff; border:1px solid var(--line); }
    .scenario .scenario-label { color:var(--coral); font-size:12px; font-weight:900; margin-bottom:12px; }
    .news-layout { display:grid; grid-template-columns:1.15fr .85fr; gap:26px; }
    .featured-news { position:relative; min-height:310px; overflow:hidden; border-radius:24px; color:#fff; padding:30px; display:flex; align-items:flex-end; background:linear-gradient(0deg,rgba(71,36,63,.88),rgba(71,36,63,.08)),url('/assets/images/14cd0369b39539be.jpg') center/cover; }
    .featured-news h3 { margin:8px 0 0; font-size:27px; line-height:1.3; }
    .news-list { display:grid; gap:12px; }
    .news-item { padding:18px 20px; border:1px solid var(--line); border-radius:16px; background:#fff; }
    .news-item small { color:var(--coral); font-weight:800; }
    .news-item strong { display:block; margin-top:3px; color:var(--berry); }
    .metric-bar { display:grid; grid-template-columns:repeat(4,1fr); border:1px solid var(--line); border-radius:22px; overflow:hidden; background:#fff; }
    .metric { padding:25px; border-right:1px solid var(--line); }
    .metric:last-child { border-right:0; }
    .metric strong { display:block; color:var(--berry); font-size:25px; line-height:1.2; }
    .metric span { color:var(--muted); font-size:13px; }
    .faq-list { max-width:900px; border-top:1px solid var(--line); }
    .faq-item { border-bottom:1px solid var(--line); }
    .faq-item summary { cursor:pointer; list-style:none; padding:20px 4px; color:var(--berry); font-weight:800; display:flex; justify-content:space-between; gap:20px; }
    .faq-item summary::-webkit-details-marker { display:none; }
    .faq-item summary:after { content:"＋"; color:var(--coral); font-size:20px; }
    .faq-item[open] summary:after { content:"－"; }
    .faq-answer { padding:0 35px 20px 4px; color:var(--muted); font-size:14px; }
    .guide-banner { padding:36px 40px; border-radius:26px; background:var(--berry); color:#fff; display:flex; justify-content:space-between; align-items:center; gap:25px; }
    .guide-banner h2 { margin:0 0 7px; font-size:28px; }
    .guide-banner p { margin:0; color:#f6dce2; }
    .guide-links { display:flex; flex-wrap:wrap; gap:10px; }
    .guide-links a { padding:12px 16px; border-radius:11px; background:rgba(255,255,255,.12); font-weight:800; font-size:13px; }
    .guide-links a:hover { background:var(--coral); }
    .final-cta { padding:95px 0; background:linear-gradient(125deg,var(--coral),#e97770 55%,var(--apricot)); color:#fff; text-align:center; }
    .final-cta h2 { margin:0 auto 14px; max-width:700px; font-size:clamp(30px,5vw,52px); line-height:1.16; letter-spacing:-.04em; }
    .final-cta p { max-width:650px; margin:0 auto 28px; color:#fff4ef; }
    .final-cta .btn-primary { background:var(--berry-deep); }
    .final-cta .btn-primary:hover { background:#4f2848; }
    footer { padding:48px 0 25px; background:var(--berry-deep); color:#fff; }
    .footer-grid { display:grid; grid-template-columns:1.3fr .7fr .8fr; gap:45px; padding-bottom:35px; }
    footer .brand { color:#fff; }
    .footer-desc { max-width:360px; color:#e9cfd7; font-size:14px; margin:16px 0 0; }
    footer h3 { margin:0 0 13px; font-size:14px; color:#fff; }
    footer ul { list-style:none; padding:0; margin:0; display:grid; gap:8px; }
    footer li, footer a { color:#d9bfc9; font-size:13px; }
    footer a:hover { color:#fff; }
    .copyright { padding-top:20px; border-top:1px solid rgba(255,255,255,.14); color:#c8aeb9; font-size:12px; display:flex; justify-content:space-between; gap:20px; }
    @media (max-width:1024px) {
      .desktop-nav { gap:14px; }
      .nav-cta { display:none; }
      .hero-grid { gap:35px; }
      .download-card { grid-template-columns:1fr; }
    }
    @media (max-width:768px) {
      .container { width:min(100% - 30px, 620px); }
      .desktop-nav { display:none; }
      .menu-toggle { display:block; }
      .hero { padding:58px 0 60px; }
      .hero-grid, .split, .device-grid, .news-layout { grid-template-columns:1fr; }
      .hero h1 { font-size:42px; }
      .hero-board { min-height:330px; margin-top:10px; }
      section { padding:68px 0; }
      .steps { grid-template-columns:1fr; gap:24px; }
      .steps:before { left:25px; top:25px; bottom:25px; width:2px; height:auto; }
      .step { display:grid; grid-template-columns:52px 1fr; gap:17px; padding:0; }
      .step-num { margin:0; }
      .scenario-grid, .notice-grid { grid-template-columns:1fr; }
      .metric-bar { grid-template-columns:1fr 1fr; }
      .metric:nth-child(2) { border-right:0; }
      .metric:nth-child(-n+2) { border-bottom:1px solid var(--line); }
      .timeline-row { grid-template-columns:1fr; gap:5px; }
      .guide-banner { align-items:flex-start; flex-direction:column; padding:28px; }
      .footer-grid { grid-template-columns:1fr 1fr; gap:30px; }
      .footer-grid > div:first-child { grid-column:1/-1; }
      .copyright { flex-direction:column; gap:5px; }
    }
    @media (max-width:520px) {
      .container { width:calc(100% - 28px); }
      .hero h1 { font-size:35px; }
      .hero-copy { font-size:15px; }
      .hero-actions > * { width:100%; }
      .hero-board { min-height:270px; }
      .hero-image { width:82%; height:220px; }
      .info-sticker { width:175px; padding:15px; bottom:10px; }
      .info-sticker strong { font-size:22px; }
      .mini-note { right:0; font-size:11px; }
      .download-card, .feedback-box { padding:22px; }
      .meta-list { grid-template-columns:1fr; }
      .matrix { grid-template-columns:1fr; }
      .metric { padding:18px 14px; }
      .metric strong { font-size:20px; }
      .footer-grid { grid-template-columns:1fr; }
      .footer-grid > div:first-child { grid-column:auto; }
    }
    @media (prefers-reduced-motion:reduce) {
      *, *:before, *:after { scroll-behavior:auto !important; transition:none !important; }
    }