/* roulang page: index */
:root{
  --ink:#141210; --ink-2:#4A443E; --muted:#8A8279; --line:#E7E1D8;
  --bg:#FAF7F2; --surface:#FFFFFF; --brand:#F0562E; --brand-deep:#C33E1C;
  --accent:#14655C; --accent-soft:#E4F1EE; --mark:#FFE9A8;
  --r-card:18px; --r-panel:22px; --r-btn:12px;
  --sh:0 1px 2px rgba(20,18,16,.04), 0 8px 24px -12px rgba(20,18,16,.10);
  --sh-hover:0 18px 40px -20px rgba(20,18,16,.22);
  --t:color .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .22s ease, transform .22s cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.wrap{padding:0 24px}}
@media (min-width:1024px){.wrap{padding:0 32px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:12px;z-index:50;padding:0 16px}
@media (max-width:640px){.site-header{top:8px;padding:0 12px}}
.nav-card{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  min-height:68px;padding:10px 14px;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--sh);
}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:16px;letter-spacing:-.02em;white-space:nowrap}
.brand-dot{width:8px;height:8px;border-radius:2px;background:var(--brand);display:inline-block;flex:0 0 auto}
.nav-pills{display:flex;gap:6px;margin:0 auto}
.nav-pill{
  width:78px;min-height:62px;padding:8px 4px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  border-radius:14px;background:var(--bg);border:1px solid transparent;
  font-size:11px;color:var(--ink-2);line-height:1.3;text-align:center;
  transition:var(--t);
}
.nav-pill svg{width:20px;height:20px;transition:var(--t);flex:0 0 auto}
.nav-pill:hover{background:var(--surface);border-color:var(--line);transform:translateY(-1px);box-shadow:var(--sh)}
.nav-pill:hover svg{color:var(--brand)}
.nav-pill:active{transform:translateY(0) scale(.99)}
.nav-pill[aria-current="page"]{background:var(--accent-soft);color:var(--accent);border-color:rgba(20,101,92,.14);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.menu-toggle{
  display:none;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 14px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;cursor:pointer;transition:var(--t);
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand-deep)}
@media (max-width:900px){
  .nav-pills{display:none}
  .menu-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
}

/* drawer */
.drawer{position:fixed;inset:0;z-index:80;background:var(--bg);display:none;overflow-y:auto}
.drawer.open{display:block}
.drawer-inner{max-width:640px;margin:0 auto;padding:20px}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-size:13px;transition:var(--t);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand-deep)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}
.drawer-grid .nav-pill{width:100%;min-height:76px;font-size:12px}
.drawer-dl{display:grid;gap:10px}
@media (max-width:400px){.drawer-grid{grid-template-columns:1fr}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn .arw{transition:transform .22s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(240,86,46,.9)}
.btn-outline{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh)}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 16px 32px -18px rgba(0,0,0,.6)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-line:hover{background:rgba(255,255,255,.08);border-color:#fff}
.btn-soft{background:var(--accent-soft);color:var(--accent);border-color:rgba(20,101,92,.16)}
.btn-soft:hover{background:#d7ebe7;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:13px;border-radius:10px}
.btn-block{width:100%}
.btn:active{transform:translateY(0) scale(.995)}

.link-u{position:relative;display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.link-u::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--brand);transition:width .22s ease}
.link-u:hover::after{width:100%}

/* ---------- pills ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;line-height:1.4;letter-spacing:.01em}
.pill-mark{background:var(--mark);color:#6B5212;font-weight:600}
.pill-accent{background:var(--accent-soft);color:var(--accent);font-weight:600}
.pill-line{background:var(--bg);border:1px solid var(--line);color:var(--ink-2)}

/* ---------- hero ---------- */
.hero{padding:52px 0 64px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(20,18,16,.04) 1px,transparent 1px),linear-gradient(to bottom,rgba(20,18,16,.04) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  opacity:.75;
}
@media (min-width:768px){.hero{padding:72px 0 92px}}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr);gap:36px}
@media (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:52px;align-items:start}}
.h1{
  font-size:clamp(32px,5vw,58px);font-weight:800;letter-spacing:-.03em;line-height:1.08;
  margin:16px 0 20px;overflow-wrap:anywhere;
}
.h1 .hl{color:var(--brand);border-bottom:2px solid var(--brand);padding-bottom:2px}
.hero-lead{font-size:16px;line-height:1.95;color:var(--ink-2);max-width:60ch;margin:0 0 26px;overflow-wrap:anywhere}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px}
.hero-note{font-size:12px;color:var(--muted);letter-spacing:.02em;margin:0 0 22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
@media (max-width:640px){
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%;height:48px}
}
.hero-aside{position:relative}
.hero-figure{
  margin:0;aspect-ratio:4/5;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh);background:var(--surface);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
@media (max-width:1023px){.hero-figure{aspect-ratio:16/10}}
.hero-float{
  position:absolute;left:14px;right:14px;bottom:14px;
  background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:16px;
  padding:16px 18px;box-shadow:var(--sh);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
@media (min-width:1024px){.hero-float{left:-24px;right:auto;bottom:28px;width:min(300px,86%);}}
.hero-float-title{margin:10px 0 6px;font-size:17px;font-weight:800;letter-spacing:-.01em}
.hero-float-note{margin:0;font-size:13px;line-height:1.7;color:var(--ink-2)}

/* ---------- sections ---------- */
.section{padding:64px 0;border-top:1px solid var(--line)}
@media (min-width:768px){.section{padding:88px 0}}
.section--plain{background:var(--surface)}
.section--tint{background:var(--bg)}
.section-head{max-width:780px;margin-bottom:34px}
.section-head--row{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;max-width:none}
.sec-num{
  display:block;font-family:var(--font-num);font-size:12px;letter-spacing:.16em;
  color:var(--muted);margin-bottom:10px;text-transform:uppercase;
}
.sec-title{font-size:clamp(23px,2.6vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.24;margin:0 0 12px;overflow-wrap:anywhere}
.sec-desc{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0;max-width:70ch}

/* ---------- keyword tag wall ---------- */
.tagcloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.tag{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:var(--t);
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh)}
.tag-mark{background:var(--mark);border-color:#F0D688;color:#6B5212;font-weight:600}

/* ---------- cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh);transition:var(--t);min-width:0;
}
.card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-hover)}
.card:active{transform:translateY(0) scale(.997)}
.card-title{font-size:19px;font-weight:700;line-height:1.4;margin:0 0 8px;letter-spacing:-.01em}
.card-text{font-size:14px;line-height:1.85;color:var(--ink-2);margin:0}
.card-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}

.grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:768px){.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
@media (min-width:768px) and (max-width:1023px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}}
.span-2{grid-column:span 1}
@media (min-width:768px){.span-2{grid-column:1 / -1}}

.icon-dot{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent);margin-bottom:14px;flex:0 0 auto;
}
.icon-dot svg{width:20px;height:20px}

.feature-list{list-style:none;margin:14px 0 0;padding:0}
.feature-list li{position:relative;padding-left:16px;font-size:13px;line-height:1.8;color:var(--ink-2)}
.feature-list li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:1px;background:var(--brand)}

/* ---------- scene track ---------- */
.big-line{
  font-size:clamp(26px,3.6vw,44px);font-weight:800;letter-spacing:-.03em;line-height:1.18;
  margin:0 0 30px;color:var(--ink);
}
.big-line em{font-style:normal;color:var(--brand)}
.track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:14px;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;-ms-overflow-style:none;
}
.track::-webkit-scrollbar{display:none}
.scene{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);transition:var(--t);
}
.scene:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-hover)}
.scene-img{margin:0;aspect-ratio:4/3;overflow:hidden;background:var(--bg)}
.scene-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.scene:hover .scene-img img{transform:scale(1.03)}
.scene-body{padding:18px}
.scene-title{font-size:17px;font-weight:700;margin:0 0 6px;letter-spacing:-.01em}
.scene-text{font-size:13px;line-height:1.8;color:var(--ink-2);margin:0}
@media (max-width:640px){.scene{flex:0 0 268px}}

/* ---------- category entry ---------- */
.entry-card{
  display:grid;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:24px;box-shadow:var(--sh);transition:var(--t);
}
@media (min-width:768px){.entry-card{grid-template-columns:auto minmax(0,1fr) auto;gap:22px;padding:28px}}
.entry-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.entry-icon{
  width:56px;height:56px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent);
}
.entry-icon svg{width:24px;height:24px}
.entry-title{font-size:19px;font-weight:800;margin:0 0 6px;letter-spacing:-.01em}
.entry-text{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0}
.sub-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ---------- download ---------- */
.dl-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:26px;box-shadow:var(--sh);
}
@media (min-width:768px){.dl-panel{padding:44px}}
.dl-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;margin-top:26px}
@media (min-width:768px){.dl-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
.dl-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:20px;
  transition:var(--t);
}
.dl-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh)}
.dl-head{display:flex;align-items:center;gap:10px}
.dl-head svg{width:22px;height:22px;color:var(--brand)}
.dl-name{font-size:16px;font-weight:700}
.dl-note{font-size:13px;line-height:1.7;color:var(--muted);margin:0;flex:1 1 auto}
.dl-foot{font-size:12px;color:var(--muted);margin-top:20px;line-height:1.7}

/* ---------- mockups ---------- */
.shots{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;margin-top:8px}
@media (min-width:768px){.shots{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}}
.shot{min-width:0}
.shot-frame{
  aspect-ratio:9/19;border-radius:22px;overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--sh);transition:var(--t);
}
.shot:hover .shot-frame{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.shot-frame img{width:100%;height:100%;object-fit:cover}
.shot-cap{display:flex;gap:10px;align-items:baseline;margin-top:14px}
.shot-num{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--brand);letter-spacing:.04em}
.shot-text{font-size:13px;line-height:1.75;color:var(--ink-2);margin:0}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:minmax(0,1fr);gap:22px}
@media (min-width:768px){
  .steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
  .step{padding:0 22px;position:relative}
  .step:first-child{padding-left:0}
  .step:last-child{padding-right:0}
  .step:not(:last-child)::after{content:"";position:absolute;right:0;top:10px;bottom:10px;width:1px;background:var(--line)}
}
.step-num{
  font-family:var(--font-num);font-size:38px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--brand);letter-spacing:.02em;margin-bottom:12px;
}
.step-title{font-size:17px;font-weight:700;margin:0 0 6px}
.step-text{font-size:13px;line-height:1.8;color:var(--ink-2);margin:0}

/* ---------- rows table ---------- */
.rows{border-top:1px solid var(--line);margin-top:8px}
.row{
  display:grid;grid-template-columns:minmax(0,1fr);gap:4px;
  padding:16px 12px;border-bottom:1px solid var(--line);transition:var(--t);border-radius:8px;
}
@media (min-width:768px){.row{grid-template-columns:230px minmax(0,1fr);gap:26px;align-items:baseline}}
.row:hover{background:var(--bg)}
.row-k{font-size:15px;font-weight:700;margin:0}
.row-v{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0}

/* ---------- safety ---------- */
.safety{
  background:var(--accent-soft);border:1px solid rgba(20,101,92,.14);border-radius:var(--r-panel);
  padding:26px;
}
@media (min-width:768px){.safety{padding:40px}}
.safety-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:26px;margin-top:22px}
@media (min-width:1024px){.safety-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:34px;align-items:start}}
.check-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
@media (min-width:640px){.check-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 20px}}
.check-list li{position:relative;padding-left:24px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;
  border:2px solid var(--brand);background:transparent;
}
.safety-figure{margin:0;border-radius:16px;overflow:hidden;border:1px solid rgba(20,101,92,.18);background:#fff;box-shadow:var(--sh)}
.safety-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.safety-cap{font-size:12px;color:var(--accent);padding:10px 14px;background:#fff;border-top:1px solid rgba(20,101,92,.14)}

/* ---------- topics ---------- */
.topics{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:768px){.topics{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}}
@media (min-width:1024px){.topics{grid-template-columns:repeat(3,minmax(0,1fr))}}
.topic{
  position:relative;padding:22px 22px 20px 26px;background:var(--surface);
  border:1px solid var(--line);border-radius:16px;transition:var(--t);min-width:0;
}
.topic::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
  background:var(--brand);border-radius:3px;transition:width .22s ease;
}
.topic:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-hover)}
.topic:hover::before{width:6px}
.topic-title{font-size:16px;font-weight:700;margin:0 0 6px}
.topic-text{font-size:13px;line-height:1.8;color:var(--ink-2);margin:0 0 12px}

/* ---------- news ---------- */
.news-list{border-top:1px solid var(--line);margin-top:8px}
.news-row{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 16px;
  padding:18px 12px;border-bottom:1px solid var(--line);transition:var(--t);border-radius:10px;
}
@media (min-width:900px){
  .news-row{grid-template-columns:120px minmax(0,1fr) 110px 24px;align-items:start;gap:20px;padding:20px 14px}
}
.news-row:hover{background:var(--bg)}
.news-cat{
  display:inline-flex;align-items:center;justify-self:start;
  padding:4px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap;max-width:100%;
  overflow:hidden;text-overflow:ellipsis;
}
.news-body{display:block;min-width:0}
.news-title{
  display:block;font-size:17px;font-weight:700;line-height:1.5;margin-bottom:4px;
  color:var(--ink);overflow-wrap:anywhere;transition:var(--t);
}
.news-row:hover .news-title{color:var(--brand-deep)}
.news-sum{
  display:block;font-size:13px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-date{font-family:var(--font-num);font-size:12px;color:var(--muted);letter-spacing:.02em;white-space:nowrap}
.news-arrow{font-size:15px;color:var(--muted);transition:var(--t);justify-self:end}
.news-row:hover .news-arrow{color:var(--brand);transform:translateX(3px)}
@media (max-width:899px){
  .news-arrow{display:none}
  .news-date{grid-column:1 / -1;justify-self:start}
}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);
  padding:48px 20px;text-align:center;color:var(--muted);
}
.empty-state svg{width:44px;height:44px;color:var(--muted);margin:0 auto 12px}
.empty-state p{margin:0;font-size:14px}
.news-more{display:flex;justify-content:center;margin-top:28px}

/* ---------- two col note ---------- */
.note-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:0}
@media (min-width:768px){
  .note-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  .note-col{padding:0 34px}
  .note-col:first-child{padding-left:0;border-right:1px solid var(--line)}
  .note-col:last-child{padding-right:0}
}
.note-col{padding:0}
@media (max-width:767px){
  .note-col{padding:22px 0;border-bottom:1px solid var(--line)}
  .note-col:last-child{border-bottom:none;padding-bottom:0}
}
.note-title{font-size:17px;font-weight:700;margin:0 0 10px}
.note-text{font-size:14px;line-height:1.9;color:var(--ink-2);margin:0}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq details{border-bottom:1px solid var(--line);transition:var(--t)}
.faq details:hover{background:rgba(250,247,242,.7)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 12px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::marker{content:""}
.faq .pm{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);transition:var(--t);
}
.faq .pm::before,.faq .pm::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);transform:translate(-50%,-50%);
  transition:transform .22s ease,opacity .22s ease;
}
.faq .pm::before{width:10px;height:1.5px}
.faq .pm::after{width:1.5px;height:10px}
.faq details[open] .pm{background:var(--brand);border-color:var(--brand)}
.faq details[open] .pm::before,.faq details[open] .pm::after{background:#fff}
.faq details[open] .pm::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{padding:0 12px 20px;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:80ch}

/* ---------- final cta ---------- */
.cta-dark{
  background:var(--ink);color:#F7F3EC;border-radius:24px;
  padding:34px 24px;position:relative;overflow:hidden;
}
@media (min-width:768px){.cta-dark{padding:56px 48px}}
.cta-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at 80% 10%,#000,transparent 70%);
  mask-image:radial-gradient(circle at 80% 10%,#000,transparent 70%);
}
.cta-title{position:relative;font-size:clamp(26px,3.6vw,44px);font-weight:800;letter-spacing:-.03em;line-height:1.16;margin:0 0 12px;overflow-wrap:anywhere}
.cta-title em{font-style:normal;color:var(--brand)}
.cta-sub{position:relative;font-size:15px;line-height:1.85;color:rgba(247,243,236,.72);margin:0 0 26px;max-width:60ch}
.cta-btns{position:relative;display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:640px){.cta-btns{flex-direction:column}.cta-btns .btn{width:100%;height:50px}}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#F7F3EC;margin-top:24px;padding:52px 0 26px}
@media (min-width:768px){.site-footer{padding:64px 0 30px}}
.footer-line{height:2px;width:56px;background:var(--brand);border-radius:2px;margin-bottom:34px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,.8fr) minmax(0,.8fr) minmax(0,1.2fr);gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:16px;letter-spacing:-.02em;margin-bottom:12px}
.footer-text{font-size:13px;line-height:1.85;color:rgba(247,243,236,.66);margin:0;max-width:36ch}
.footer-col-title{font-size:12px;letter-spacing:.14em;color:rgba(247,243,236,.5);margin:0 0 14px;text-transform:uppercase;font-family:var(--font-num)}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-links a{
  position:relative;display:inline-block;font-size:14px;color:rgba(255,255,255,.8);transition:var(--t);
}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--brand);transition:width .22s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(247,243,236,.6);letter-spacing:.02em;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s ease,transform .48s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
}
#download,#news,#topics,#faq{scroll-margin-top:104px}

/* roulang page: article */
:root{
  --ink:#141210; --ink-2:#4A443E; --muted:#8A8279; --line:#E7E1D8;
  --bg:#FAF7F2; --surface:#FFFFFF; --brand:#F0562E; --brand-deep:#C33E1C;
  --accent:#14655C; --accent-soft:#E4F1EE; --mark:#FFE9A8;
  --r-card:18px; --r-panel:22px; --r-btn:12px;
  --sh:0 1px 2px rgba(20,18,16,.04), 0 8px 24px -12px rgba(20,18,16,.10);
  --sh-hover:0 18px 40px -20px rgba(20,18,16,.22);
  --t:color .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .22s ease, transform .22s cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--mark);color:var(--ink)}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:8px;z-index:50;padding:0 12px}
.nav-card{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  min-height:68px;padding:10px 14px;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--sh);
}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:16px;letter-spacing:-.02em;white-space:nowrap}
.brand-dot{width:8px;height:8px;border-radius:2px;background:var(--brand);display:inline-block;flex:0 0 auto}
.nav-pills{display:none;gap:6px;margin:0 auto}
.nav-pill{
  width:78px;min-height:62px;padding:8px 4px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  border-radius:14px;background:var(--bg);border:1px solid transparent;
  font-size:11px;color:var(--ink-2);line-height:1.3;text-align:center;
  transition:var(--t);
}
.nav-pill svg{width:20px;height:20px;transition:var(--t);flex:0 0 auto}
.nav-pill:hover{background:var(--surface);border-color:var(--line);transform:translateY(-1px);box-shadow:var(--sh)}
.nav-pill:hover svg{color:var(--brand)}
.nav-pill:active{transform:translateY(0) scale(.99)}
.nav-pill[aria-current="page"]{background:var(--accent-soft);color:var(--accent);border-color:rgba(20,101,92,.14);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-cta{display:none}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 14px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;transition:var(--t);
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand-deep)}
@media(min-width:1024px){
  .nav-pills{display:flex}
  .menu-toggle{display:none}
  .nav-cta{display:inline-flex}
}

/* drawer */
.drawer{position:fixed;inset:0;z-index:80;background:var(--bg);display:none;overflow-y:auto}
.drawer.open{display:block}
.drawer-inner{max-width:640px;margin:0 auto;padding:20px}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;transition:var(--t);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand-deep)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}
.drawer-grid .nav-pill{width:100%;min-height:76px;font-size:12px}
.drawer-dl{display:grid;gap:10px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn .arw{transition:transform .22s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(240,86,46,.9)}
.btn-outline{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh)}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 16px 32px -18px rgba(0,0,0,.6)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-line:hover{background:rgba(255,255,255,.08);border-color:#fff}
.btn-soft{background:var(--accent-soft);color:var(--accent);border-color:rgba(20,101,92,.16)}
.btn-soft:hover{background:#d7ebe7;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:13px;border-radius:10px}
.btn-block{width:100%}
.btn:active{transform:translateY(0) scale(.995)}
.btn:focus-visible,.nav-pill:focus-visible,.menu-toggle:focus-visible,.drawer-close:focus-visible,a:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}

/* ---------- pills ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;line-height:1.4;letter-spacing:.01em}
.pill-mark{background:var(--mark);color:#6B5212;font-weight:600}
.pill-accent{background:var(--accent-soft);color:var(--accent);font-weight:600}
.pill-line{background:var(--bg);border:1px solid var(--line);color:var(--ink-2)}

/* ---------- crumb band ---------- */
.crumb-band{
  padding:26px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#FFFDF9 0%,var(--bg) 100%);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--ink-2);transition:var(--t)}
.crumb a:hover{color:var(--brand-deep)}
.crumb .sep{color:var(--line)}
.crumb .now{color:var(--ink);max-width:100%;overflow-wrap:anywhere}
.crumb-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- article head ---------- */
.article-head{padding:44px 0 12px}
.article-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;font-family:var(--font-num)}
.article-head h1{
  margin:16px 0 0;font-size:clamp(28px,4.2vw,46px);font-weight:800;
  letter-spacing:-.03em;line-height:1.16;overflow-wrap:anywhere;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.cover{
  margin-top:30px;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh);aspect-ratio:16/8;background:var(--surface);
}
.cover img{width:100%;height:100%;object-fit:cover}

/* ---------- sections ---------- */
.sec{padding:44px 0}
.sec-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:26px}
.sec-num{font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--muted);display:block;margin-bottom:8px}
.sec-head h2{margin:0;font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.sec-head p{margin:10px 0 0;font-size:14px;color:var(--ink-2);max-width:720px}

/* ---------- article body ---------- */
.article-body{
  max-width:780px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink-2);
  overflow-wrap:anywhere;
}
.article-body h2{
  position:relative;font-size:24px;font-weight:800;color:var(--ink);
  margin:1.9em 0 .7em;padding-left:15px;letter-spacing:-.01em;line-height:1.4;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:1em;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:19px;font-weight:700;color:var(--ink);margin:1.6em 0 .5em;line-height:1.45}
.article-body p{margin:0 0 1.1em}
.article-body ul,.article-body ol{padding-left:0;margin:0 0 1.2em;list-style:none}
.article-body ol{counter-reset:item}
.article-body ul li{position:relative;padding-left:18px;margin:.45em 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:1px;background:var(--brand);opacity:.85}
.article-body ol li{position:relative;padding-left:26px;margin:.45em 0;counter-increment:item}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.32em;width:18px;height:18px;border-radius:6px;
  background:var(--mark);color:#6B5212;font-size:11px;font-weight:700;line-height:18px;text-align:center;font-family:var(--font-num);
}
.article-body blockquote{
  margin:1.5em 0;padding:14px 20px;border-left:3px solid var(--brand);
  background:#F5F0E8;border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand)}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:1.4em 0;width:100%;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:12px;color:var(--muted);margin-top:8px;text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14px;display:block;overflow-x:auto}
.article-body th{background:var(--bg);text-align:left;font-weight:700;color:var(--ink)}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:10px 12px;white-space:nowrap}
.article-body tr:nth-child(even) td{background:#FCFAF6}
.article-body strong{color:var(--ink);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.empty-box{
  border:1px dashed var(--line);background:var(--surface);border-radius:var(--r-card);
  padding:38px 22px;text-align:center;color:var(--muted);
}
.empty-box p{margin:0 0 14px;font-size:15px;color:var(--ink-2)}
.empty-box a{color:var(--brand-deep);font-weight:600}

/* ---------- note card ---------- */
.note-card{
  max-width:780px;margin:0 auto;background:#F6F1E8;border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 26px 20px;
}
.note-card h2{font-size:18px;font-weight:800;margin:0 0 14px;color:var(--ink);letter-spacing:-.01em}
.note-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.note-list li{position:relative;padding-left:22px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.note-list li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.note-list b{color:var(--ink)}

/* ---------- channel cards ---------- */
.channel-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:768px){.channel-grid{grid-template-columns:1fr 1fr}}
.channel-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh);transition:var(--t);
}
.channel-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-hover)}
.channel-card .ico{
  width:38px;height:38px;border-radius:12px;background:var(--accent-soft);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
}
.channel-card h3{margin:0;font-size:18px;font-weight:700;color:var(--ink)}
.channel-card p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}
.channel-card .go{font-size:13px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.channel-card .go .arw{transition:transform .22s ease}
.channel-card:hover .go .arw{transform:translateX(4px)}

/* ---------- safety ---------- */
.safety{
  max-width:780px;margin:0 auto;background:var(--accent-soft);
  border:1px solid rgba(20,101,92,.14);border-radius:var(--r-panel);padding:28px 26px;
}
.safety h2{margin:0 0 14px;font-size:19px;font-weight:800;color:var(--accent);letter-spacing:-.01em}
.safety ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.safety li{position:relative;padding-left:24px;font-size:14px;line-height:1.8;color:#20564e}
.safety li::before{
  content:"";position:absolute;left:4px;top:.62em;width:9px;height:9px;border-radius:50%;
  border:2px solid var(--accent);
}

/* ---------- download bar ---------- */
.dl-bar{
  max-width:1000px;margin:0 auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-panel);box-shadow:var(--sh);padding:24px;
  display:grid;gap:18px;align-items:center;
}
@media(min-width:900px){.dl-bar{grid-template-columns:minmax(0,1fr) auto;padding:26px 30px}}
.dl-bar h2{margin:0 0 6px;font-size:20px;font-weight:800;letter-spacing:-.01em}
.dl-bar p{margin:0;font-size:13px;color:var(--muted)}
.dl-btns{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:640px){.dl-btns{grid-template-columns:repeat(3,minmax(0,1fr))}}
.dl-btns .btn{width:100%;padding:0 14px;font-size:13px}

/* ---------- back links ---------- */
.back-row{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 26px;padding:10px 0 4px}
.back-row a{font-size:14px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;transition:var(--t)}
.back-row a:hover{color:var(--brand-deep)}
.back-row a .arw{transition:transform .22s ease}
.back-row a:hover .arw{transform:translateX(-4px)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#F4EFE7;margin-top:60px;padding:56px 0 26px}
.footer-line{height:2px;width:64px;background:var(--brand);border-radius:2px;margin-bottom:40px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:16px;color:#fff;margin-bottom:12px}
.footer-text{margin:0;font-size:13px;line-height:1.9;color:rgba(255,255,255,.7)}
.footer-col-title{margin:0 0 14px;font-size:12px;letter-spacing:.14em;color:rgba(255,255,255,.5);text-transform:uppercase}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-links a{position:relative;display:inline-block;font-size:14px;color:rgba(255,255,255,.8);transition:var(--t)}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--brand);transition:width .22s ease}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-bottom{margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:rgba(255,255,255,.6)}

/* reveal */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.in{opacity:1;transform:none;transition:opacity .48s ease, transform .48s cubic-bezier(.2,.7,.3,1)}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --ink:#141210; --ink-2:#4A443E; --muted:#8A8279; --line:#E7E1D8;
  --bg:#FAF7F2; --surface:#FFFFFF; --brand:#F0562E; --brand-deep:#C33E1C;
  --accent:#14655C; --accent-soft:#E4F1EE; --mark:#FFE9A8;
  --r-card:18px; --r-panel:22px; --r-btn:12px;
  --sh:0 1px 2px rgba(20,18,16,.04), 0 8px 24px -12px rgba(20,18,16,.10);
  --sh-hover:0 18px 40px -20px rgba(20,18,16,.22);
  --t:color .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .22s ease, transform .22s cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
::selection{background:var(--brand);color:#fff}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.wrap{padding:0 24px}}
@media (min-width:1024px){.wrap{padding:0 32px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:12px;z-index:50;padding:0 16px}
.nav-card{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  min-height:68px;padding:10px 14px;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--sh);
}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:16px;letter-spacing:-.02em;white-space:nowrap}
.brand-dot{width:8px;height:8px;border-radius:2px;background:var(--brand);display:inline-block;flex:0 0 auto}
.nav-pills{display:flex;gap:6px;margin:0 auto}
.nav-pill{
  min-width:84px;min-height:62px;padding:8px 8px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  border-radius:14px;background:var(--bg);border:1px solid transparent;
  font-size:11px;color:var(--ink-2);line-height:1.3;text-align:center;
  transition:var(--t);
}
.nav-pill svg{width:20px;height:20px;transition:var(--t);flex:0 0 auto}
.nav-pill:hover{background:var(--surface);border-color:var(--line);transform:translateY(-1px);box-shadow:var(--sh)}
.nav-pill:hover svg{color:var(--brand)}
.nav-pill:active{transform:translateY(0) scale(.99)}
.nav-pill[aria-current="page"]{background:var(--accent-soft);color:var(--accent);border-color:rgba(20,101,92,.14);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.menu-toggle{
  display:none;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 14px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;cursor:pointer;transition:var(--t);
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand-deep)}
@media (max-width:900px){
  .nav-pills{display:none}
  .menu-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
}
@media (max-width:520px){
  .site-header{top:8px;padding:0 12px}
  .brand{font-size:14px}
}
/* drawer */
.drawer{position:fixed;inset:0;z-index:80;background:var(--bg);display:none;overflow-y:auto}
.drawer.open{display:block}
.drawer-inner{max-width:640px;margin:0 auto;padding:20px}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;line-height:1;transition:var(--t);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand-deep)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}
.drawer-grid .nav-pill{width:100%;min-height:78px;font-size:12px}
.drawer-dl{display:grid;gap:10px}
@media (max-width:420px){.drawer-grid{grid-template-columns:1fr}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn .arw{transition:transform .22s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(240,86,46,.9)}
.btn-outline{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh)}
.btn-soft{background:var(--accent-soft);color:var(--accent);border-color:rgba(20,101,92,.16)}
.btn-soft:hover{background:#d7ebe7;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:13px;border-radius:10px}
.btn-block{width:100%}
.btn:active{transform:translateY(0) scale(.995)}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- pills ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;line-height:1.4;letter-spacing:.01em}
.pill-mark{background:var(--mark);color:#6B5212;font-weight:600}
.pill-accent{background:var(--accent-soft);color:var(--accent);font-weight:600}
.pill-line{background:var(--bg);border:1px solid var(--line);color:var(--ink-2)}

/* ---------- sections ---------- */
.section{padding:60px 0}
@media (min-width:768px){.section{padding:84px 0}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:32px;max-width:760px}
.sec-no{font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--muted);margin:0 0 10px}
.sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0 0 12px;overflow-wrap:anywhere}
.sec-sub{margin:0;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- category band ---------- */
.cat-band{padding:44px 0 38px;background:var(--surface);border-bottom:1px solid var(--line)}
@media (min-width:768px){.cat-band{padding:56px 0 48px}}
.cat-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-items:end}
@media (min-width:960px){.cat-grid{grid-template-columns:minmax(0,1fr) 320px;gap:40px}}
.cat-eyebrow{margin:0 0 14px}
.cat-h1{
  font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.03em;line-height:1.14;
  margin:0 0 14px;overflow-wrap:anywhere;
}
.cat-h1 .hl{color:var(--brand);box-shadow:inset 0 -2px 0 0 var(--brand);padding-bottom:2px}
.cat-desc{margin:0;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:640px}
.cat-side{border-left:1px solid var(--line);padding-left:0}
@media (min-width:960px){.cat-side{padding-left:24px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin:0 0 14px;padding:0;list-style:none}
.crumb a{transition:var(--t)}
.crumb a:hover{color:var(--brand-deep)}
.crumb li[aria-current]{color:var(--ink-2)}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- keyword cards ---------- */
.kw-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:720px){.kw-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}}
.kw-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh);transition:var(--t);min-width:0;
}
.kw-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-hover)}
.kw-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}
.kw-title{margin:0;font-size:19px;font-weight:700;line-height:1.4;overflow-wrap:anywhere}
.kw-text{margin:0 0 14px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.kw-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}

/* ---------- entry tiles ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (min-width:720px){.entry-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:1024px){.entry-grid{grid-template-columns:repeat(5,minmax(0,1fr))}}
.entry-tile{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  min-height:96px;padding:14px 10px;border-radius:16px;background:var(--surface);
  border:1px solid var(--line);font-size:12.5px;color:var(--ink-2);text-align:center;
  transition:var(--t);min-width:0;
}
.entry-tile svg{width:22px;height:22px;color:var(--accent);transition:var(--t)}
.entry-tile:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--sh);color:var(--ink)}
.entry-tile:hover svg{color:var(--brand)}
.entry-tile[aria-current="page"]{background:var(--accent-soft);border-color:rgba(20,101,92,.18);color:var(--accent);font-weight:600}

/* ---------- explain columns ---------- */
.explain-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:26px}
@media (min-width:900px){.explain-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0}}
.explain-col{padding:0}
@media (min-width:900px){
  .explain-col{padding:0 30px}
  .explain-col:first-child{padding-left:0}
  .explain-col:last-child{padding-right:0;border-left:1px solid var(--line)}
}
.explain-col h3{margin:0 0 12px;font-size:19px;font-weight:800;letter-spacing:-.01em}
.explain-col p{margin:0 0 12px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.tick-list{list-style:none;margin:0;padding:0}
.tick-list li{position:relative;padding-left:20px;margin-bottom:10px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.tick-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand)}
.figure{margin:26px 0 0;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure figcaption{padding:10px 14px;font-size:12px;color:var(--muted)}

/* ---------- scene rows ---------- */
.scene-list{border-top:1px solid var(--line)}
.scene-row{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 12px;border-bottom:1px solid var(--line);transition:var(--t);min-width:0;
}
.scene-row:hover{background:var(--surface)}
.scene-no{font-family:var(--font-num);font-size:13px;letter-spacing:.1em;color:var(--muted);flex:0 0 auto;padding-top:4px}
.scene-body{flex:1 1 auto;min-width:0}
.scene-name{margin:0 0 4px;font-size:17px;font-weight:700;line-height:1.45;overflow-wrap:anywhere}
.scene-text{margin:0;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.scene-icon{flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
.scene-icon svg{width:20px;height:20px}

/* ---------- news list ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:flex;align-items:flex-start;gap:14px;
  padding:18px 10px;border-bottom:1px solid var(--line);transition:var(--t);min-width:0;
}
.news-row:hover{background:var(--surface)}
.news-tag{
  flex:0 0 auto;padding:4px 10px;border-radius:999px;background:var(--accent-soft);
  color:var(--accent);font-size:11.5px;font-weight:600;white-space:nowrap;margin-top:2px;
}
.news-main{flex:1 1 auto;min-width:0}
.news-title{display:block;font-size:17px;font-weight:700;line-height:1.5;margin-bottom:4px;overflow-wrap:anywhere;transition:var(--t)}
.news-row:hover .news-title{color:var(--brand-deep)}
.news-desc{display:block;font-size:13.5px;line-height:1.8;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-date{flex:0 0 auto;font-size:12px;color:var(--muted);font-family:var(--font-num);padding-top:4px}
.news-arw{flex:0 0 auto;color:var(--muted);transition:var(--t);padding-top:2px}
.news-row:hover .news-arw{color:var(--brand);transform:translateX(3px)}
@media (max-width:640px){
  .news-row{flex-wrap:wrap;gap:8px}
  .news-date{order:3}
  .news-arw{display:none}
}
.empty-state{padding:44px 20px;text-align:center;border:1px dashed var(--line);border-radius:16px;background:var(--surface)}
.empty-state svg{width:44px;height:44px;color:var(--muted);margin:0 auto 12px}
.empty-state p{margin:0;font-size:14px;color:var(--muted)}
.news-more{margin-top:22px;display:flex;justify-content:center}

/* ---------- safety card ---------- */
.safety-card{
  background:var(--accent-soft);border:1px solid rgba(20,101,92,.16);
  border-radius:var(--r-panel);padding:26px;
}
@media (min-width:768px){.safety-card{padding:36px}}
.safety-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px}
@media (min-width:900px){.safety-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;align-items:start}}
.safety-card h2{margin:0 0 14px;font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.02em;color:#0F4C45}
.safety-card .tick-list li{color:#1c4f49}
.safety-card .tick-list li::before{background:var(--accent)}
.safety-shot{border-radius:16px;overflow:hidden;border:1px solid rgba(20,101,92,.18);background:var(--surface)}
.safety-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- download bar ---------- */
.dl-bar{
  display:grid;grid-template-columns:minmax(0,1fr);gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:24px;box-shadow:var(--sh);
}
@media (min-width:900px){.dl-bar{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:32px;gap:28px}}
.dl-bar h2{margin:0 0 8px;font-size:clamp(21px,2.2vw,27px);font-weight:800;letter-spacing:-.02em}
.dl-bar p{margin:0;font-size:13.5px;line-height:1.8;color:var(--ink-2)}
.dl-actions{display:flex;flex-wrap:wrap;gap:10px}
.dl-actions .btn{flex:1 1 140px}
@media (min-width:900px){.dl-actions .btn{flex:0 0 auto}}
.dl-note{margin-top:14px;font-size:12px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#FAF7F2;padding:52px 0 28px;margin-top:20px}
.footer-line{height:2px;width:56px;background:var(--brand);border-radius:2px;margin-bottom:34px}
.footer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
@media (min-width:900px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:32px}}
@media (max-width:520px){.footer-grid{grid-template-columns:minmax(0,1fr)}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:16px;margin-bottom:12px}
.footer-text{margin:0;font-size:13px;line-height:1.85;color:rgba(250,247,242,.72)}
.footer-col-title{margin:0 0 12px;font-size:13px;font-weight:700;letter-spacing:.04em;color:rgba(250,247,242,.9)}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:9px}
.footer-links a{position:relative;display:inline-block;font-size:13.5px;color:rgba(250,247,242,.8);transition:var(--t)}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--brand);transition:width .22s ease}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-bottom{margin-top:38px;padding-top:16px;border-top:1px solid rgba(250,247,242,.14);font-size:12px;color:rgba(250,247,242,.6)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s ease,transform .48s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important}
}