/* roulang page: index */
:root{
    --bg:#0B0B0A; --bg-deep:#080807; --bg-soft:#151310; --panel:#201B14;
    --amber:#F2A33A; --flame:#E07F1A; --ivory:#F2EDE3; --sand:#AFA594; --line:#3A3127;
    --wine:#A34A3A; --dusk:#6C5B8C; --sage:#8A9A6C;
    --radius:16px; --radius-sm:10px;
    --shadow-card:0 12px 40px rgba(0,0,0,0.45);
    --shadow-lift:0 18px 50px rgba(0,0,0,0.55);
  }
  *{box-sizing:border-box; margin:0; padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--bg);
    color:var(--ivory);
    font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans CJK SC',sans-serif;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{background:rgba(242,163,58,.28); color:#fff}
  ::-webkit-scrollbar{width:10px; height:8px}
  ::-webkit-scrollbar-track{background:#0b0b0a}
  ::-webkit-scrollbar-thumb{background:#3A3127; border-radius:8px}
  ::-webkit-scrollbar-thumb:hover{background:#8a7d67}
  img{display:block; max-width:100%}
  a{color:inherit; text-decoration:none}
  button{font-family:inherit}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
    outline:2px solid var(--amber); outline-offset:3px; border-radius:4px;
  }
  .container-x{max-width:1280px; margin-left:auto; margin-right:auto; padding-left:6vw; padding-right:6vw}
  .section-pad{padding:clamp(72px,8vw,118px) 0}
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    color:var(--amber); font-size:13px; letter-spacing:.18em; font-weight:600;
  }
  .eyebrow::before{content:""; width:26px; height:1px; background:var(--amber); display:inline-block}
  .title-xl{font-size:clamp(1.6rem,2.6vw,2.3rem); font-weight:700; line-height:1.25; letter-spacing:.01em}
  .hero-title{font-size:clamp(2.6rem,6vw,4.8rem); font-weight:800; line-height:1.16; letter-spacing:-.02em}
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:10px;
    border-radius:10px; padding:13px 24px; font-weight:600; font-size:15px;
    transition:all .25s ease; border:1px solid transparent; cursor:pointer;
  }
  .btn-amber{background:var(--amber); color:#1c140a; box-shadow:0 6px 20px rgba(242,163,58,.14)}
  .btn-amber:hover{background:var(--flame); box-shadow:0 8px 26px rgba(224,127,26,.28); transform:translateY(-2px)}
  .btn-ghost{background:transparent; color:var(--ivory); border-color:var(--line)}
  .btn-ghost:hover{border-color:var(--amber); background:rgba(242,163,58,.06); color:var(--amber)}
  .card-base{background:var(--panel); border:1px solid rgba(255,255,255,.05); border-radius:16px; box-shadow:var(--shadow-card)}
  .card-hover{transition:all .3s ease}
  .card-hover:hover{transform:translateY(-4px); border-color:rgba(242,163,58,.55); box-shadow:var(--shadow-lift)}
  .badge{
    display:inline-flex; align-items:center; gap:4px; padding:5px 12px;
    background:rgba(242,163,58,.1); border:1px solid rgba(242,163,58,.18);
    color:var(--amber); font-size:12px; border-radius:99px; font-weight:500;
  }
  .hairline{border-color:rgba(255,255,255,.06)}
  .nav-link{position:relative; font-size:15px; color:var(--sand); padding:8px 2px; transition:color .2s}
  .nav-link:hover{color:var(--ivory)}
  .nav-link.active{color:var(--amber)}
  .nav-link.active::after{content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px; background:var(--amber); border-radius:2px}
  .video-cover{position:relative; overflow:hidden; aspect-ratio:16/10; border-radius:14px}
  .video-cover img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:transform .6s ease}
  .cover-group:hover .video-cover img{transform:scale(1.04)}
  .play-cursor{
    display:flex; align-items:center; justify-content:center; width:58px; height:58px;
    border-radius:50%; background:rgba(242,163,58,.9); color:#150e05;
    transition:transform .2s ease, background .2s ease;
  }
  .play-cursor:hover{transform:scale(1.1); background:var(--amber)}
  .time-tag{position:absolute; right:12px; bottom:12px; background:rgba(0,0,0,.72); color:#fff; font-size:12px; padding:3px 8px; border-radius:6px; letter-spacing:.05em}
  .city-dd{opacity:0; visibility:hidden; transform:translateY(10px); transition:.25s ease; pointer-events:none}
  .city-dd.open{opacity:1; visibility:visible; transform:translateY(0); pointer-events:auto}
  details.faq-item{background:var(--panel); border:1px solid rgba(255,255,255,.05); border-radius:14px; padding:20px 22px}
  details.faq-item summary{display:flex; justify-content:space-between; gap:16px; cursor:pointer; list-style:none; font-weight:600; font-size:16px}
  details.faq-item summary::-webkit-details-marker{display:none}
  .faq-icon{width:24px; height:24px; min-width:24px; border-radius:50%; border:1px solid var(--line); display:inline-flex; align-items:center; justify-content:center; transition:all .3s ease; color:var(--amber)}
  details[open] .faq-icon{transform:rotate(45deg); border-color:var(--amber); background:rgba(242,163,58,.08)}
  .faq-body{max-height:0; overflow:hidden; transition:max-height .4s ease, margin .3s ease; opacity:0}
  details[open] .faq-body{max-height:360px; margin-top:12px; opacity:1}
  .form-field{
    width:100%; background:rgba(11,11,10,.72); border:1px solid var(--line); border-radius:10px;
    color:var(--ivory); padding:12px 14px; font-size:14px; transition:border .2s;
  }
  .form-field:focus{border-color:var(--amber); outline:none}
  .form-field::placeholder{color:#77705f}
  select.form-field{appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23AFA594' fill='none' stroke-width='1.5'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 14px center}
  .fade-up{animation:fadeUp .7s ease both}
  @keyframes fadeUp{from{opacity:0; transform:translateY(14px)} to{opacity:1; transform:none}}
  @media(max-width:768px){
    .container-x{padding-left:20px; padding-right:20px}
    .desktop-nav{display:none}
    .mobile-city-row{display:flex}
  }
  @media(min-width:769px){
    .mobile-nav-panel{display:none!important}
    .mobile-city-row{display:none!important}
  }

/* roulang page: category1 */
/* ============ roulang theme tokens ============ */
:root{
  --bg:#0B0B0A; --bg-deep:#080807; --bg-soft:#151310; --panel:#201B14;
  --amber:#F2A33A; --flame:#E07F1A; --ivory:#F2EDE3; --sand:#AFA594; --line:#3A3127;
  --wine:#A34A3A; --dusk:#6C5B8C; --sage:#8A9A6C;
  --radius:16px; --radius-sm:10px;
  --shadow-card:0 12px 40px rgba(0,0,0,0.45);
  --shadow-lift:0 18px 50px rgba(0,0,0,0.55);
}

html{scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--ivory);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans CJK SC',sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{
  display:block;
  max-width:100%;
}

a{
  color:inherit;
  text-decoration:none;
}

button{
  font-family:inherit;
  background:none;
  border:none;
  cursor:pointer;
}

input, textarea, select{
  font-family:inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
  border-radius:4px;
}

::selection{
  background:rgba(242,163,58,.28);
  color:var(--ivory);
}

::-webkit-scrollbar{
  width:10px;
  height:8px;
}

::-webkit-scrollbar-track{
  background:#0e0d0b;
}

::-webkit-scrollbar-thumb{
  background:#3a3127;
  border-radius:6px;
}

/* ============ layout helpers ============ */
.container-x{
  max-width:1280px;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
}

@media (min-width:769px){
  .container-x{
    padding-left:6vw;
    padding-right:6vw;
  }
}

.section-pad{
  padding:clamp(72px,8vw,118px) 0;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--amber);
  font-size:13px;
  letter-spacing:.18em;
  font-weight:600;
}

.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--amber);
  display:inline-block;
}

.title-xl{
  font-size:clamp(1.6rem,2.6vw,2.3rem);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.01em;
}

.hero-title{
  font-size:clamp(2.4rem,5.4vw,4.2rem);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
}

.text-sand{color:var(--sand)}
.text-ivory{color:var(--ivory)}
.text-amber{color:var(--amber)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius:10px;
  padding:13px 24px;
  font-weight:600;
  font-size:15px;
  transition:all .25s ease;
  border:1px solid transparent;
  cursor:pointer;
  line-height:1.4;
}

.btn-amber{
  background:var(--amber);
  color:#1c140a;
  box-shadow:0 6px 20px rgba(242,163,58,.14);
}

.btn-amber:hover{
  background:var(--flame);
  box-shadow:0 8px 26px rgba(224,127,26,.28);
  transform:translateY(-2px);
}

.btn-ghost{
  background:transparent;
  color:var(--ivory);
  border-color:var(--line);
}

.btn-ghost:hover{
  border-color:var(--amber);
  background:rgba(242,163,58,.06);
  color:var(--amber);
}

/* ============ nav ============ */
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--sand);
  padding:8px 2px;
  transition:color .2s;
  display:inline-block;
}

.nav-link:hover{
  color:var(--ivory);
}

.nav-link.active{
  color:var(--amber);
}

.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--amber);
  border-radius:2px;
}

.city-dd{
  display:none;
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:248px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:8px;
  box-shadow:var(--shadow-lift);
  z-index:60;
}

.city-dd.open{
  display:block;
}

.city-item{
  display:flex;
  justify-content:space-between;
  align-items:center;
  width:100%;
  padding:11px 14px;
  border-radius:12px;
  color:var(--ivory);
  font-size:14px;
  text-align:left;
  transition:background .2s;
}

.city-item:hover{
  background:rgba(255,255,255,.05);
  color:var(--amber);
}

/* mobile city */
.mobile-city-row{
  display:none;
}

.mobile-nav-panel{
  display:none;
}

.mobile-nav-panel.open{
  display:block;
}

@media (max-width:1023px){
  .mobile-city-row{
    display:flex;
  }
}

@media (min-width:1024px){
  .mobile-city-row{
    display:none !important;
  }
}

/* ============ cards / panels ============ */
.card-base{
  background:var(--panel);
  border:1px solid rgba(255,255,255,.05);
  border-radius:16px;
  box-shadow:var(--shadow-card);
}

.card-hover{
  transition:all .3s ease;
}

.card-hover:hover{
  transform:translateY(-4px);
  border-color:rgba(242,163,58,.55);
  box-shadow:var(--shadow-lift);
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:5px 12px;
  background:rgba(242,163,58,.1);
  border:1px solid rgba(242,163,58,.18);
  color:var(--amber);
  font-size:12px;
  border-radius:99px;
  font-weight:500;
  white-space:nowrap;
}

.video-cover img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}

.cover-group:hover .video-cover img{
  transform:scale(1.04);
}

.time-tag{
  position:absolute;
  right:12px;
  bottom:12px;
  background:rgba(0,0,0,.72);
  color:#f6f0e6;
  font-size:12px;
  padding:3px 8px;
  border-radius:6px;
  letter-spacing:.05em;
}

.play-hover{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  transition:opacity .35s ease;
}

.play-hover i{
  width:54px;
  height:54px;
  border-radius:50%;
  background:rgba(242,163,58,.92);
  color:#1c140a;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 0 0 10px rgba(242,163,58,.12);
  font-style:normal;
  transition:undefined;
}

.cover-group:hover .play-hover{
  opacity:1;
}

/* ============ chips ============ */
.filter-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 18px;
  border-radius:99px;
  border:1px solid var(--line);
  color:var(--sand);
  background:rgba(32,27,20,.6);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:all .22s ease;
}

.filter-chip:hover{
  color:var(--ivory);
  border-color:rgba(242,163,58,.65);
  background:rgba(242,163,58,.05);
}

.filter-chip.active{
  color:#1c140a;
  background:var(--amber);
  border-color:var(--amber);
  box-shadow:0 6px 20px rgba(242,163,58,.16);
}

.chips-scroll{
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}

.chips-scroll::-webkit-scrollbar{
  display:none;
}

.category-hidden{
  display:none !important;
}

/* ============ process timeline ============ */
.process-step{
  position:relative;
  padding-left:84px;
  padding-bottom:42px;
}

.process-step:last-child{
  padding-bottom:0;
}

.process-step::before{
  content:"";
  position:absolute;
  left:27px;
  top:62px;
  bottom:4px;
  width:1px;
  background:linear-gradient(to bottom,var(--line),transparent);
}

.process-step:last-child::before{
  display:none;
}

.process-num{
  position:absolute;
  left:0;
  top:2px;
  width:56px;
  height:56px;
  border-radius:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:18px;
  background:rgba(242,163,58,.1);
  border:1px solid rgba(242,163,58,.35);
  color:var(--amber);
}

/* ============ FAQ ============ */
details.faq-item{
  background:var(--panel);
  border:1px solid rgba(255,255,255,.05);
  border-radius:14px;
  padding:20px 22px;
  transition:border-color .25s;
}

details.faq-item[open]{
  border-color:rgba(242,163,58,.3);
}

details.faq-item summary{
  display:flex;
  justify-content:space-between;
  gap:16px;
  align-items:center;
  cursor:pointer;
  list-style:none;
  font-weight:600;
  font-size:16px;
  color:var(--ivory);
}

details.faq-item summary::-webkit-details-marker{
  display:none;
}

.faq-icon{
  width:24px;
  height:24px;
  min-width:24px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:transform .35s ease, border-color .3s, background .3s;
  font-weight:400;
  font-style:normal;
}

details[open] .faq-icon{
  transform:rotate(45deg);
  border-color:var(--amber);
  background:rgba(242,163,58,.08);
  color:var(--amber);
}

.faq-panel-body{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .4s cubic-bezier(.4,0,.2,1);
}

details[open] .faq-panel-body{
  grid-template-rows:1fr;
}

.faq-panel-body > div{
  overflow:hidden;
  color:var(--sand);
  font-size:15px;
  line-height:1.8;
}

/* ============ pagination ============ */
.page-btn{
  min-width:42px;
  height:42px;
  padding:0 14px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  color:var(--sand);
  font-size:14px;
  font-weight:500;
  background:rgba(32,27,20,.45);
  transition:all .22s ease;
}

.page-btn:hover{
  border-color:var(--amber);
  color:var(--amber);
  transform:translateY(-2px);
}

.page-btn.active{
  background:var(--amber);
  border-color:var(--amber);
  color:#1c140a;
  box-shadow:0 6px 18px rgba(242,163,58,.15);
}

/* ============ forms ============ */
.form-field{
  width:100%;
  background:rgba(11,11,10,.72);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--ivory);
  padding:12px 14px;
  font-size:14px;
  transition:border .2s, background .2s;
}

.form-field:focus{
  border-color:var(--amber);
  background:rgba(11,11,10,.9);
  outline:none;
}

.form-field::placeholder{
  color:#77705f;
}

.form-label{
  display:block;
  font-size:13px;
  color:var(--sand);
  margin-bottom:6px;
  font-weight:500;
}

select.form-field{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23AFA594' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
}

.form-notice{
  display:none;
}

.form-notice.show{
  display:flex;
}

/* ============ atmosphere extras ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(900px 480px at 82% -10%, rgba(242,163,58,.14), transparent 62%),
    radial-gradient(700px 320px at -6% 42%, rgba(108,91,140,.11), transparent 55%),
    var(--bg-deep);
}

.cat-hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(242,163,58,.4), transparent);
}

.text-mark{
  display:inline-block;
  color:var(--amber);
  font-weight:700;
}

.space-band{
  background:
    radial-gradient(680px 320px at 15% 20%, rgba(138,154,108,.09), transparent 60%),
    var(--bg-soft);
}

.deep-band{
  background:
    radial-gradient(900px 400px at 80% 10%, rgba(242,163,58,.07), transparent 55%),
    var(--bg-deep);
}

/* block title with theater feel */
.stage-title{
  position:relative;
  display:inline-block;
}

.stage-title::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-8px;
  height:2px;
  background:linear-gradient(90deg,var(--amber),transparent);
}

.zebra-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:28px;
}

/* keep everything responsive on tiny widths */
@media (max-width:520px){
  .hero-title{
    font-size:clamp(2rem,8.4vw,2.6rem);
  }
  .process-step{
    padding-left:70px;
  }
  .process-step::before{
    left:22px;
  }
  .process-num{
    width:46px;
    height:46px;
    font-size:16px;
    border-radius:16px;
  }
}

object {
  all: unset;
}