/* roulang page: index */
:root{
  --ink:#251b2b;--deep:#332036;--cream:#fff8ea;--paper:#fffdf7;
  --yellow:#f6c344;--orange:#ed7b3a;--coral:#d95450;--mint:#7bbfa5;
  --line:#dfcda9;--muted:#756879;--shadow:5px 5px 0 #332036;
  --radius:14px;--container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:var(--deep);border-bottom:3px solid var(--yellow);box-shadow:0 4px 0 rgba(37,27,43,.15)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900;letter-spacing:-.04em;font-size:1.18rem;white-space:nowrap}
.logo-mark{width:18px;height:18px;background:var(--yellow);box-shadow:7px 0 var(--orange),0 7px var(--coral),7px 7px #fff}
.nav-links{display:flex;align-items:center;gap:7px}
.nav-links a{color:#f9eed4;padding:10px 13px;border:2px solid transparent;font-size:.94rem}
.nav-links a:hover,.nav-links a.active{color:var(--yellow);border-color:var(--yellow)}
.nav-button{display:none;background:none;color:#fff;border:2px solid var(--yellow);padding:8px 11px}
.hero{position:relative;overflow:hidden;background:var(--deep);color:#fff;padding:74px 0 64px}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(51,32,54,.96) 0%,rgba(51,32,54,.82) 45%,rgba(51,32,54,.42)),url('/assets/images/3b99638bd61507d7.jpg') center/cover;opacity:.95}
.hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;background:var(--yellow);color:var(--ink);font-family:monospace;font-weight:800;font-size:.78rem;padding:5px 10px;border:2px solid var(--ink);box-shadow:3px 3px 0 var(--orange)}
h1,h2,h3{margin:0;line-height:1.25;letter-spacing:-.04em}
h1{font-size:clamp(2.2rem,5vw,4.65rem);max-width:720px;margin:22px 0 18px}
h2{font-size:clamp(1.65rem,3vw,2.45rem)}
h3{font-size:1.15rem}
.hero-copy{font-size:1.05rem;color:#f8ecd8;max-width:680px}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border:2px solid var(--ink);font-weight:800;transition:.2s;box-shadow:4px 4px 0 var(--ink)}
.btn:hover{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}
.btn:focus,.nav-button:focus,input:focus{outline:3px solid var(--orange);outline-offset:3px}
.btn-primary{background:var(--yellow);color:var(--ink)}
.btn-light{background:#fff7e5;color:var(--ink)}
.hero-panel{background:rgba(255,248,234,.96);color:var(--ink);border:3px solid var(--yellow);box-shadow:8px 8px 0 var(--coral);padding:22px}
.panel-title{font-weight:900;border-bottom:2px dashed var(--line);padding-bottom:12px;margin-bottom:16px}
.signal-list{display:grid;gap:12px}
.signal{display:flex;justify-content:space-between;gap:15px;padding:11px 0;border-bottom:1px solid var(--line)}
.signal strong{color:var(--coral);font-family:monospace}
.section{padding:82px 0}
.section.alt{background:#fff3dc}
.section.dark{background:var(--deep);color:#fff}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px}
.section-head p{max-width:580px;color:var(--muted);margin:0}
.dark .section-head p{color:#e5d8c8}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene-card,.topic-card,.info-card,.feedback-card,.audience-card{background:var(--paper);border:2px solid var(--line);padding:23px;box-shadow:var(--shadow);transition:.2s}
.scene-card:hover,.topic-card:hover,.info-card:hover,.feedback-card:hover,.audience-card:hover{transform:translateY(-4px);box-shadow:7px 9px 0 var(--deep)}
.icon-box{width:42px;height:42px;display:grid;place-items:center;background:var(--orange);border:2px solid var(--ink);font-weight:900;margin-bottom:17px}
.card-label{display:inline-block;color:var(--coral);font:800 .76rem monospace;margin-bottom:8px}
.card-text{color:var(--muted);font-size:.94rem;margin:10px 0 0}
.route{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:18px;align-items:stretch}
.route-box{padding:27px;background:var(--yellow);border:3px solid var(--ink);position:relative}
.route-box:nth-child(2){background:#fff;transform:translateY(22px)}
.route-box:nth-child(3){background:var(--mint)}
.route-box:not(:last-child):after{content:"→";position:absolute;right:-28px;top:42%;font-size:2rem;font-weight:900;color:var(--coral);z-index:2}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:3px solid var(--coral)}
.step{padding:28px 22px;border-right:1px dashed var(--line);position:relative}
.step:last-child{border:0}
.step-no{font:900 2.1rem monospace;color:var(--coral);display:block;margin-bottom:20px}
.content-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.feature-card{background:var(--paper);border:3px solid var(--ink);box-shadow:8px 8px 0 var(--orange);padding:29px}
.poster{min-height:250px;background:linear-gradient(135deg,rgba(51,32,54,.18),rgba(217,84,80,.2)),url('/assets/images/c60d33c95d2b072c.jpg') center/cover;border:3px solid var(--ink);display:flex;align-items:end;padding:22px;color:#fff}
.poster h3{background:var(--deep);padding:10px 13px}
.list-stack{display:grid;gap:12px}
.list-item{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:16px 18px;background:#fff;border-left:5px solid var(--orange);border-bottom:1px solid var(--line)}
.list-item p{margin:4px 0 0;color:var(--muted);font-size:.88rem}
.badge{display:inline-block;padding:4px 8px;border:1px solid var(--ink);background:#fff0c7;font-size:.75rem;white-space:nowrap}
.rank-list{display:grid;gap:10px;max-width:900px}
.rank{display:grid;grid-template-columns:54px 1fr auto;align-items:center;gap:16px;background:#fff8eb;border:2px solid var(--line);padding:14px 18px}
.rank-number{font:900 1.5rem monospace;color:var(--coral)}
.rank small{color:var(--muted)}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.metric{padding:25px;background:#fff;border:2px solid var(--line);position:relative}
.metric:before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--yellow)}
.metric strong{display:block;font:900 2rem monospace;color:var(--coral);margin:7px 0}
.metric span{color:var(--muted);font-size:.9rem}
.topic-strip{display:flex;gap:18px;overflow-x:auto;padding:8px 4px 18px;scrollbar-color:var(--orange) transparent}
.topic-card{min-width:220px;background:#fff8e7}
.topic-card:nth-child(2){background:#ffe5cb}.topic-card:nth-child(3){background:#e8f2df}.topic-card:nth-child(4){background:#f7dfdf}.topic-card:nth-child(5){background:#e9e0f0}
.scene-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
.scene-card.tall{grid-row:span 2;background:var(--deep);color:#fff;min-height:280px}
.scene-card.tall .card-text{color:#e5d8c8}
.feedback-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.feedback-card{position:relative}
.feedback-card:before{content:"“";font:900 4rem Georgia;color:var(--orange);position:absolute;right:18px;top:2px}
.feedback-meta{margin-top:20px;color:var(--coral);font-size:.83rem;font-weight:800}
.audience-list{display:flex;flex-wrap:wrap;gap:13px}
.audience-card{display:flex;align-items:center;gap:12px;padding:16px 20px;box-shadow:3px 3px 0 var(--deep)}
.info-list{display:grid;gap:0;border-top:2px solid var(--ink)}
.info-row{display:grid;grid-template-columns:110px 115px 1fr auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
.info-row time{font:800 .8rem monospace;color:var(--coral)}
.info-row p{margin:0;color:var(--muted)}
.calendar{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.calendar-box{background:var(--deep);color:#fff;padding:28px;border:3px solid var(--yellow);box-shadow:7px 7px 0 var(--coral)}
.calendar-line{display:flex;gap:16px;padding:15px 0;border-bottom:1px dashed #8f7188}
.calendar-line strong{color:var(--yellow);min-width:74px}
.cta{background:var(--coral);color:#fff;text-align:center;padding:86px 0}
.cta p{max-width:650px;margin:16px auto 0;color:#fff0df}
.site-footer{background:var(--deep);color:#eee0c9;padding:48px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #654d61}
.footer-title{font-weight:900;color:var(--yellow);margin-bottom:13px}
.footer-links{display:grid;gap:7px;color:#e6d5c1;font-size:.9rem}
.footer-links a:hover{color:var(--yellow)}
.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#baa8a3;font-size:.8rem}
@media(max-width:1024px){.hero-grid,.content-feature,.calendar{grid-template-columns:1fr 1fr}.grid-4{grid-template-columns:repeat(2,1fr)}.metrics{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 28px,var(--container))}.nav-button{display:block}.nav-links{display:none;position:absolute;left:14px;right:14px;top:68px;background:var(--deep);padding:12px;border:2px solid var(--yellow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px}.nav-wrap{height:68px}.hero{padding:54px 0}.hero-grid,.content-feature,.calendar,.feedback-wrap,.scene-grid{grid-template-columns:1fr}.route{grid-template-columns:1fr}.route-box:nth-child(2){transform:none}.route-box:not(:last-child):after{content:"↓";right:50%;top:auto;bottom:-30px}.steps{grid-template-columns:1fr;border-top:0}.step{border-right:0;border-bottom:1px dashed var(--line);padding:22px 0}.step:last-child{border-bottom:0}.info-row{grid-template-columns:85px 90px 1fr}.info-row .btn{display:none}.section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:12px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:520px){h1{font-size:2.25rem}.grid-4,.grid-3,.metrics{grid-template-columns:1fr}.hero-panel{margin-top:8px}.actions .btn{width:100%}.poster{min-height:210px}.info-row{grid-template-columns:1fr;gap:4px}.rank{grid-template-columns:40px 1fr}.rank .badge{grid-column:2}.footer-grid{grid-template-columns:1fr}.logo{font-size:1rem}}