/* roulang page: index */
:root{--pine:#1E4A3C;--pine-deep:#16382E;--clay:#C45C26;--clay-deep:#A3491C;--copper:#B08A4A;--paper:#F4EFE6;--sage:#E7EEE9;--ink:#1A1A1A;--mute:#5C615B;--dark:#12241C;--cream:#F8F4EC;--line:#D5D0C4;--line-ink:#C9BEA8;--danger:#B42318;--shadow:0 6px 18px rgba(18,36,28,.06);--shadow-sm:0 2px 8px rgba(18,36,28,.05);--r-card:8px;--r-btn:5px;--container:1220px;--nav-h:72px;--ease:.22s ease}
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    html,body{margin:0;padding:0}
    body{font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.8;font-size:16px;overflow-x:hidden}
    img{max-width:100%;height:auto;display:block}
    a{color:var(--pine);text-decoration:none}
    a:hover{color:var(--clay)}
    button,input,select,textarea{font-family:inherit}
    button{cursor:pointer;border:0;background:none}
    h1,h2,h3,h4{font-family:"Noto Serif SC","Source Han Serif SC",serif;line-height:1.28;color:var(--pine);margin:0 0 16px;font-weight:700}
    p{margin:0 0 1.15em}
    ul{margin:0;padding:0;list-style:none}
    :focus-visible{outline:2px solid var(--clay);outline-offset:3px}
    .container{width:min(100% - 40px,var(--container));margin:0 auto}
    .skip{position:absolute;left:-999px;top:0;background:var(--dark);color:#fff;padding:8px 14px;z-index:100}
    .skip:focus{left:12px;top:12px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--r-btn);font-weight:600;letter-spacing:.02em;transition:var(--ease);border:1px solid transparent;line-height:1}
    .btn-primary{background:var(--clay);color:#fff}
    .btn-primary:hover,.btn-primary:active{background:var(--clay-deep);color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.25)}
    .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
    .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.35)}
    .btn-line{background:transparent;color:var(--pine);border-color:var(--pine)}
    .btn-line:hover{background:var(--pine);color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.2)}
    .btn-full{width:100%}
    .badge{display:inline-flex;align-items:center;min-height:24px;padding:0 8px;border:1px solid var(--copper);color:#6E5428;background:rgba(176,138,74,.12);font-size:12px;letter-spacing:.04em;border-radius:2px;font-weight:600}
    .badge-light{background:rgba(255,255,255,.14);color:#F8F4EC;border-color:rgba(176,138,74,.7)}
    .kicker{display:inline-block;font-size:13px;letter-spacing:.18em;color:var(--copper);font-weight:600;margin-bottom:10px}
    .site-header{position:relative;z-index:50}
    .toolbar{background:var(--dark);color:#DDE6E0;font-size:13px;min-height:36px;display:flex;align-items:center;transition:min-height .2s ease,padding .2s ease,opacity .2s ease}
    .toolbar-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;width:min(100% - 40px,var(--container));margin:0 auto}
    .toolbar a{color:#DDE6E0}
    .toolbar a:hover{color:#fff}
    .toolbar-left,.toolbar-right{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
    .toolbar b{color:#F4EFE6;font-weight:600}
    .nav-wrap{background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow var(--ease),background var(--ease)}
    .nav-wrap.is-sticky{position:sticky;top:0;z-index:60;box-shadow:0 8px 24px rgba(18,36,28,.08);background:rgba(244,239,230,.96);backdrop-filter:blur(8px)}
    .is-compact .toolbar{min-height:0;height:0;overflow:hidden;opacity:0;padding:0}
    .nav-bar{display:flex;align-items:center;justify-content:space-between;min-height:var(--nav-h);gap:18px;width:min(100% - 40px,var(--container));margin:0 auto}
    .logo{font-family:"Noto Serif SC",serif;font-size:22px;color:var(--pine);font-weight:700;white-space:nowrap;letter-spacing:.04em;display:flex;align-items:center;gap:8px}
    .logo:hover{color:var(--pine-deep)}
    .logo-mark{width:28px;height:28px;border:1.5px solid var(--copper);display:grid;place-items:center;font-size:13px;color:var(--copper)}
    .nav-links{display:flex;gap:6px;align-items:center;flex-wrap:wrap;justify-content:center}
    .nav-links a{color:var(--ink);font-size:15px;padding:8px 10px;border-radius:4px;position:relative}
    .nav-links a:hover,.nav-links a.is-active{color:var(--pine)}
    .nav-links a.is-active::after{content:"";position:absolute;left:10px;right:10px;bottom:4px;height:2px;background:var(--pine)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--pine);border-radius:4px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
    .menu-toggle span{width:18px;height:2px;background:var(--pine);display:block}
    .drawer{position:fixed;inset:0 0 0 auto;width:min(86vw,360px);background:var(--paper);transform:translateX(100%);transition:transform .28s ease;z-index:80;box-shadow:-12px 0 32px rgba(18,36,28,.16);display:flex;flex-direction:column;padding:24px 22px 32px;overflow-y:auto}
    .drawer.open{transform:none}
    .drawer-mask{position:fixed;inset:0;background:rgba(18,36,28,.45);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:70}
    .drawer-mask.open{opacity:1;pointer-events:auto}
    .drawer-top{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:12px;color:var(--mute);font-size:14px}
    .drawer-top p{margin:0 0 6px}
    .drawer nav a{display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--line);color:var(--ink);font-size:16px;font-weight:500}
    body.lock{overflow:hidden}
    .hero{position:relative;min-height:74vh;background:var(--dark);overflow:hidden}
    .slides{position:relative;min-height:74vh}
    .slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .6s ease;background-size:cover;background-position:center}
    .slide.is-on{opacity:1;visibility:visible;z-index:1}
    .slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,36,28,.82) 0%,rgba(18,36,28,.55) 48%,rgba(18,36,28,.28) 100%)}
    .slide-inner{position:relative;z-index:2;min-height:74vh;display:flex;align-items:center;width:min(100% - 40px,var(--container));margin:0 auto;padding:72px 0 88px}
    .slide-copy{max-width:680px;color:var(--cream)}
    .hero h1,.slide h2.hero-title{color:#F8F4EC;font-size:clamp(32px,4.4vw,52px);margin:10px 0 18px;text-shadow:0 2px 16px rgba(0,0,0,.25)}
    .hero-lead{font-size:16px;line-height:1.85;color:#E8E0D2;margin-bottom:26px;max-width:36em}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .burst{position:absolute;right:8%;top:18%;z-index:3;width:118px;height:118px;border:2px dashed var(--copper);border-radius:50%;display:grid;place-items:center;text-align:center;color:#F8F4EC;background:rgba(196,92,38,.88);transform:rotate(8deg);box-shadow:0 8px 20px rgba(0,0,0,.2)}
    .burst strong{display:block;font-size:22px;font-family:"Noto Serif SC",serif;line-height:1.15}
    .burst span{font-size:12px;letter-spacing:.08em}
    .limit-chip{display:inline-flex;align-items:center;gap:8px;background:rgba(196,92,38,.18);border:1px solid rgba(196,92,38,.7);color:#F6D7C4;padding:6px 12px;font-size:13px;margin-bottom:14px}
    .limit-chip i{width:7px;height:7px;background:var(--clay);border-radius:50%;display:inline-block}
    .hero-ctrl{position:absolute;inset:auto 0 22px;z-index:4;display:flex;justify-content:center;align-items:center;gap:16px}
    .hero-dots{display:flex;gap:8px}
    .hero-dots button{width:28px;height:4px;background:rgba(255,255,255,.35);border-radius:2px}
    .hero-dots button.is-on{background:var(--clay)}
    .hero-arrow{width:44px;height:44px;border:1px solid rgba(255,255,255,.45);color:#fff;border-radius:4px;display:grid;place-items:center;font-size:18px;background:rgba(18,36,28,.25)}
    .hero-arrow:hover{background:rgba(18,36,28,.5)}
    .section{padding:96px 0;position:relative}
    .section-sage{background:var(--sage)}
    .section-paper{background:var(--paper)}
    .section-cream{background:var(--cream)}
    .section-head{max-width:760px;margin-bottom:40px}
    .section h2{font-size:clamp(26px,3vw,36px)}
    .section-desc{color:var(--mute);font-size:16px;line-height:1.85}
    .rule{height:1px;background:linear-gradient(90deg,var(--copper),transparent 70%);width:84px;margin:0 0 18px}
    .split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
    .media-frame{position:relative;border:1px solid var(--line-ink);padding:10px;background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-sm)}
    .media-frame img{width:100%;height:420px;object-fit:cover;border-radius:4px}
    .media-frame .cap{position:absolute;left:22px;bottom:22px;background:var(--paper);border:1px solid var(--copper);padding:10px 14px;font-size:13px;color:var(--pine)}
    .facts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
    .fact{border:1px solid var(--line);background:#fff;padding:14px 16px;border-radius:8px}
    .fact b{display:block;font-variant-numeric:tabular-nums;color:var(--pine);font-size:20px;font-family:"Noto Serif SC",serif}
    .fact span{color:var(--mute);font-size:13px}
    .bento{display:grid;grid-template-columns:1.4fr 1fr 1fr;grid-template-rows:auto auto;gap:16px}
    .svc{background:#fff;border:1px solid var(--line-ink);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-sm);transition:transform var(--ease),border-color var(--ease);position:relative;overflow:hidden}
    .svc:hover{transform:translateY(-3px);border-color:var(--pine)}
    .svc::before{content:"";position:absolute;top:0;right:0;width:12px;height:12px;background:linear-gradient(135deg,transparent 50%,var(--copper) 50%)}
    .svc.wide{grid-column:1 / 2;grid-row:1 / 3;background:var(--pine);color:#F4EFE6}
    .svc.wide h3,.svc.wide .kicker{color:#F4EFE6}
    .svc.wide p,.svc.wide .who{color:#D5E0DA}
    .svc.tall{grid-column:2 / 4}
    .svc h3{font-size:22px;margin-bottom:8px}
    .svc p{color:var(--mute);font-size:15px;line-height:1.7}
    .svc .who{font-size:13px;color:var(--pine);margin-bottom:10px;font-weight:600}
    .svc .more{display:inline-flex;margin-top:12px;font-weight:600;color:var(--clay)}
    .svc.wide .more{color:#F3C7A8}
    .grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .adv{background:#fff;border:1px solid var(--line);padding:22px 20px 20px;border-radius:var(--r-card);min-height:176px;transition:transform var(--ease),border-color var(--ease)}
    .adv:hover{transform:translate(3px,-3px);border-color:var(--pine)}
    .adv .num{font-family:"Noto Serif SC",serif;color:var(--pine);font-size:28px;font-variant-numeric:tabular-nums}
    .adv h3{font-size:18px;margin:6px 0 8px}
    .adv p{color:var(--mute);font-size:14px;line-height:1.65;margin:0}
    .stats{background:var(--dark);color:#F4EFE6;padding:64px 0}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .stat{text-align:left;border-left:2px solid var(--copper);padding:6px 0 6px 18px}
    .stat b{display:block;font-size:42px;font-family:"Noto Serif SC",serif;font-variant-numeric:tabular-nums;color:#F8F4EC;line-height:1.1}
    .stat span{color:#C5D0CA;font-size:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .course{background:#fff;border:1px solid var(--line-ink);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform var(--ease),border-color var(--ease)}
    .course:hover{transform:translateY(-4px);border-color:var(--pine)}
    .course img{width:100%;height:210px;object-fit:cover}
    .course.alt img{height:168px}
    .course.tall img{height:248px;object-position:center 20%}
    .course-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
    .course-meta{display:flex;gap:8px;flex-wrap:wrap}
    .course h3{font-size:20px}
    .fields{color:var(--mute);font-size:14px;line-height:1.7}
    .fields div{display:flex;gap:8px}
    .fields em{font-style:normal;color:var(--pine);min-width:4.5em;font-weight:600}
    .course .btn{margin-top:auto;align-self:flex-start}
    .scenes{display:grid;grid-template-columns:220px 1fr;gap:28px}
    .scene-nav{display:flex;flex-direction:column;gap:8px}
    .scene-nav button{text-align:left;min-height:56px;padding:10px 14px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:6px;font-weight:600}
    .scene-nav button.is-on{background:var(--pine);color:#fff;border-color:var(--pine)}
    .scene-panel{background:#fff;border:1px solid var(--line-ink);padding:28px;border-radius:var(--r-card);display:none}
    .scene-panel.is-on{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}
    .skill-list li{position:relative;padding:8px 0 8px 16px;line-height:1.65;color:var(--mute);border-bottom:1px dashed var(--line)}
    .skill-list li::before{content:"";position:absolute;left:0;top:18px;width:7px;height:7px;background:var(--clay)}
    .timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;position:relative}
    .timeline::before{content:"";position:absolute;left:0;right:0;top:28px;height:2px;background:var(--copper);opacity:.35}
    .step{background:#fff;border:1px solid var(--line);padding:18px 16px 16px;border-radius:8px;position:relative}
    .step i{width:18px;height:18px;border:2px solid var(--pine);background:var(--paper);border-radius:50%;display:block;margin-bottom:12px;position:relative;z-index:1}
    .step h3{font-size:16px}
    .io{font-size:13px;color:var(--mute);line-height:1.65}
    .io b{color:var(--pine);font-weight:600}
    .dark-band{background:var(--dark);color:#E8E0D2;padding:88px 0}
    .dark-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
    .dark-band h2{color:#F8F4EC}
    .seal-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
    .seal{border:1px solid var(--copper);color:#E6D3AE;padding:8px 12px;font-size:13px;letter-spacing:.08em}
    .idea-points{display:grid;gap:12px}
    .idea-points article{border:1px solid rgba(176,138,74,.35);padding:16px 18px}
    .idea-points h3{color:#F4EFE6;font-size:18px;margin-bottom:6px}
    .idea-points p{margin:0;color:#C9D3CD;font-size:14px;line-height:1.7}
    .wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:12px}
    .tile{position:relative;overflow:hidden;border-radius:8px;border:1px solid var(--line-ink);color:#fff;display:flex;align-items:flex-end;min-height:150px}
    .tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
    .tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 20%,rgba(18,36,28,.82))}
    .tile-body{position:relative;z-index:1;padding:14px 16px}
    .tile h3{color:#fff;font-size:18px;margin:0 0 6px}
    .tile p{margin:0;font-size:13px;line-height:1.6;color:#E4DDD0}
    .tile.a{grid-column:span 2;grid-row:span 2}
    .tile.b{grid-column:span 1;grid-row:span 2}
    .tile.c{grid-column:span 1;grid-row:span 1}
    .tile:hover{border-color:var(--copper)}
    .story-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:18px}
    .story{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
    .story img{width:100%;height:220px;object-fit:cover}
    .story-body{padding:18px}
    .story h3{font-size:18px;margin-bottom:4px}
    .role{color:var(--copper);font-size:13px;margin-bottom:10px}
    .beforeafter{font-size:14px;color:var(--mute);line-height:1.7}
    .reviews{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .quote{display:grid;grid-template-columns:6px 1fr;background:#fff;border:1px solid var(--line);min-height:140px}
    .quote i{background:var(--pine);display:block}
    .quote.alt i{background:var(--clay)}
    .quote-body{padding:18px 20px}
    .quote p{margin:0 0 12px;line-height:1.7}
    .quote footer{color:var(--mute);font-size:13px}
    .news-list{display:grid;gap:12px}
    .news{display:grid;grid-template-columns:160px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);padding:12px;border-radius:8px;transition:border-color var(--ease),transform var(--ease)}
    .news:hover{border-color:var(--pine);transform:translateX(4px)}
    .news img{width:160px;height:96px;object-fit:cover;border-radius:4px}
    .news h3{font-size:18px;margin:0 0 6px}
    .news p{margin:0;color:var(--mute);font-size:14px;line-height:1.65}
    .news time{color:var(--copper);font-size:13px;white-space:nowrap}
    .partners{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .partner{background:#fff;border:1px solid var(--line);min-height:88px;display:flex;align-items:center;justify-content:center;gap:10px;color:#8A8E88;filter:grayscale(1);transition:var(--ease);padding:12px;border-radius:6px}
    .partner:hover{filter:none;color:var(--pine);border-color:var(--pine)}
    .partner img{width:42px;height:42px;object-fit:cover;border-radius:4px;opacity:.85}
    .partner:hover img{opacity:1}
    .partner span{font-weight:600}
    .faq{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item button{width:100%;text-align:left;min-height:64px;padding:16px 8px;display:flex;justify-content:space-between;gap:16px;font-size:17px;font-weight:600;color:var(--pine)}
    .faq-item button span.plus{color:var(--copper);font-size:22px;line-height:1}
    .faq-item .ans{display:none;color:var(--mute);background:#efe9dd;margin:0 -8px;padding:0 16px 18px;line-height:1.8}
    .faq-item.open .ans{display:block}
    .faq-item.open button{color:var(--clay)}
    .guard{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .guard-item{background:#fff;border:1px solid var(--line-ink);padding:16px;border-radius:8px;min-height:108px}
    .guard-item h3{font-size:16px;margin-bottom:6px}
    .guard-item p{margin:0;font-size:13px;color:var(--mute);line-height:1.65}
    .enroll{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start}
    .side-card{background:var(--pine);color:#E7EEE9;padding:28px;border-radius:8px}
    .side-card h3{color:#F8F4EC}
    .side-card p,.side-card li{color:#D5E0DA}
    .side-card a{color:#F3C7A8}
    .side-card li{padding:6px 0 6px 14px;position:relative}
    .side-card li::before{content:"";width:6px;height:6px;background:var(--copper);position:absolute;left:0;top:14px}
    .form{background:#fff;border:1px solid var(--line-ink);padding:28px;border-radius:8px;box-shadow:var(--shadow)}
    .form-row{margin-bottom:14px}
    label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
    input,select,textarea{width:100%;min-height:46px;border:1px solid #C9C3B6;background:var(--paper);border-radius:4px;padding:8px 12px;color:var(--ink);appearance:none}
    input:focus,select:focus,textarea:focus{border-color:var(--pine);outline:none;background:#fff}
    .error{color:var(--danger);font-size:13px;display:none;margin-top:4px}
    .form-row.bad input,.form-row.bad select{border-color:var(--danger);background:#FDECEC}
    .form-row.bad .error{display:block}
    .okbox{display:none;background:var(--sage);border:1px solid var(--pine);color:var(--pine);padding:14px;border-radius:6px;margin-bottom:12px}
    .site-footer{background:var(--pine-deep);color:#C9D3CD;padding:56px 0 24px}
    .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:28px}
    .site-footer h3{color:#F4EFE6;font-size:18px}
    .site-footer a{color:#C9D3CD}
    .site-footer a:hover{color:#fff}
    .foot-brand{font-family:"Noto Serif SC",serif;color:#F8F4EC;font-size:22px;margin-bottom:10px}
    .copy{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:16px;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
    @media (max-width:1280px){.bento{grid-template-columns:1.2fr 1fr 1fr}.wall{grid-template-columns:repeat(3,1fr)}}
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