/* roulang page: index */
:root{
  --bg:#F6F3ED;
  --bg-deep:#0F1413;
  --surface:#FFFFFF;
  --surface-2:#EDE8DF;
  --ink:#191714;
  --ink-2:#4B463F;
  --ink-3:#8B8478;
  --brand:#DA4B22;
  --brand-600:#B93A16;
  --accent:#14453B;
  --accent-2:#2E8C74;
  --line:rgba(25,23,20,.10);
  --line-strong:rgba(25,23,20,.18);
  --r-card:18px;
  --r-pic:20px;
  --r-btn:999px;
  --shadow-1:0 1px 2px rgba(20,18,15,.04), 0 18px 40px -24px rgba(20,18,15,.16);
  --shadow-2:0 2px 6px rgba(20,18,15,.07), 0 30px 60px -30px rgba(20,18,15,.26);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:80px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(218,75,34,.18)}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:112px 0}}
.section-tight{padding:48px 0}
@media(min-width:1024px){.section-tight{padding:72px 0}}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:72px;z-index:80;
  display:flex;align-items:center;
  transition:background .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(246,243,237,.94);
  -webkit-backdrop-filter:saturate(1.5) blur(10px);
  backdrop-filter:saturate(1.5) blur(10px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -26px rgba(20,18,15,.6);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em;font-size:17px;color:var(--ink)}
.logo-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:var(--accent);display:grid;place-items:center}
.logo-mark svg{width:18px;height:18px}
.logo-text .thin{color:var(--ink-2);font-weight:600}
.main-nav{display:none;align-items:center;gap:26px}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .24s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-cta{display:flex;align-items:center;gap:10px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:14px 28px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(218,75,34,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-ghost:hover{background:rgba(20,69,59,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:15px}
.link-arrow .arrow{transition:transform .26s var(--ease)}
.link-arrow:hover{color:var(--accent-2)}
.link-arrow:hover .arrow{transform:translateX(4px)}

/* ---------- badges & tags ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 12px;border-radius:999px;background:rgba(20,69,59,.10);color:var(--accent);letter-spacing:.02em}
.badge-orange{background:rgba(218,75,34,.12);color:var(--brand-600)}
.badge-plain{background:var(--surface-2);color:var(--ink-2)}
.eyebrow{font-size:13px;letter-spacing:.14em;color:var(--ink-3);font-weight:600;text-transform:uppercase}

/* ---------- hero ---------- */
.hero{padding:calc(72px + 48px) 0 64px;position:relative;overflow:hidden}
@media(min-width:1024px){.hero{padding:calc(72px + 76px) 0 104px}}
.hero-grid{display:grid;gap:44px;grid-template-columns:1fr}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center}}
.hero h1{
  font-size:clamp(2.4rem,6vw,4.4rem);
  font-weight:800;letter-spacing:-.02em;line-height:1.06;margin-bottom:22px;
}
.hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:clamp(1rem,1.6vw,1.125rem);color:var(--ink-2);max-width:34em;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px;margin-top:32px}
.metrics{display:flex;flex-wrap:wrap;margin-top:44px;border-top:1px solid var(--line);padding-top:22px}
.metrics .m{flex:1 1 30%;min-width:120px;padding:0 18px;border-left:1px solid var(--line)}
.metrics .m:first-child{padding-left:0;border-left:none}
.metrics .m b{display:block;font-size:1.5rem;font-weight:800;color:var(--brand);letter-spacing:-.01em;line-height:1.2}
.metrics .m span{font-size:13px;color:var(--ink-3);letter-spacing:.03em}
.hero-visual{position:relative}
.hero-visual .frame{position:relative;border-radius:var(--r-pic);overflow:hidden;box-shadow:var(--shadow-2)}
.hero-visual .frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,20,19,.06),rgba(15,20,19,.28))}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{
  position:absolute;left:-8px;bottom:22px;z-index:3;width:min(268px,82%);
  background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 18px;
  box-shadow:var(--shadow-2);
}
.float-card .fc-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);line-height:1.6}
.float-card .fc-row + .fc-row{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.float-card i{color:var(--accent-2);margin-top:4px}
.glow{
  position:absolute;width:340px;height:340px;right:-90px;top:-70px;border-radius:50%;
  background:radial-gradient(circle,rgba(218,75,34,.28),rgba(218,75,34,0) 68%);
  filter:blur(6px);pointer-events:none;z-index:0;
  animation:drift 14s ease-in-out infinite alternate;
}
@keyframes drift{
  0%{transform:translate3d(0,0,0) scale(1)}
  100%{transform:translate3d(-26px,22px,0) scale(1.08)}
}

/* ---------- claim band ---------- */
.claim{background:var(--surface-2)}
.claim-inner{display:flex;flex-wrap:wrap;align-items:center;gap:18px 34px;padding:34px 0}
.claim-inner strong{font-size:clamp(1.05rem,2.1vw,1.4rem);font-weight:700;letter-spacing:-.01em}
.claim-tags{display:flex;flex-wrap:wrap}
.claim-tags span{padding:0 18px;border-left:1px solid var(--line-strong);font-size:14px;color:var(--ink-2);line-height:1.4}
.claim-tags span:first-child{padding-left:0;border-left:none}

/* ---------- section head ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;letter-spacing:-.01em;line-height:1.2}
.sec-head p{color:var(--ink-2);margin-top:12px;max-width:46em}
.sec-title-line{position:relative;padding-left:18px}
.sec-title-line::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--accent)}

/* ---------- story ---------- */
.story-grid{display:grid;gap:44px;grid-template-columns:1fr}
@media(min-width:1024px){.story-grid{grid-template-columns:5fr 7fr;gap:64px;align-items:start}}
.story-visual img{border-radius:var(--r-pic);aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow-1)}
@media(min-width:1024px){.story-visual img{aspect-ratio:3/4}}
.story-list{border-top:1px solid var(--line)}
.story-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}
.story-num{font-size:14px;font-weight:800;color:var(--brand);letter-spacing:.06em;min-width:36px;padding-top:5px}
.story-item h3{font-size:1.15rem;font-weight:600;margin-bottom:8px}
.story-item p{color:var(--ink-2);font-size:15.5px}

/* ---------- capability grid ---------- */
.cap-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){
  .cap-grid{grid-template-columns:repeat(12,1fr)}
  .cap-main{grid-column:span 7;grid-row:span 2}
  .cap-small{grid-column:span 5}
  .cap-wide{grid-column:span 12}
}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(218,75,34,.22)}
.cap-main{padding:0;overflow:hidden}
.cap-main .cap-img{position:relative}
.cap-main .cap-img img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .6s var(--ease)}
.cap-main:hover .cap-img img{transform:scale(1.04)}
.cap-main .cap-body{padding:28px}
.card h3{font-size:1.18rem;font-weight:600;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px;line-height:1.8}
.icon-box{width:42px;height:42px;border-radius:12px;background:rgba(20,69,59,.09);color:var(--accent);display:grid;place-items:center;margin-bottom:18px;font-size:17px}
.cap-wide-inner{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:900px){.cap-wide-inner{grid-template-columns:1.2fr 1fr;align-items:center}}
.cap-wide .icon-box{background:rgba(218,75,34,.12);color:var(--brand)}

/* ---------- news ---------- */
.news-feature{display:grid;gap:0;grid-template-columns:1fr;padding:0;overflow:hidden;margin-bottom:18px}
@media(min-width:900px){.news-feature{grid-template-columns:5fr 7fr}}
.news-feature-media{overflow:hidden}
.news-feature-media img{width:100%;height:100%;min-height:210px;object-fit:cover;transition:transform .6s var(--ease)}
.news-feature:hover .news-feature-media img{transform:scale(1.04)}
.news-feature-body{padding:26px 28px}
.news-feature-body h3{font-size:clamp(1.1rem,2vw,1.4rem);font-weight:700;line-height:1.45;margin:14px 0 12px}
.news-feature-body h3 a:hover{color:var(--brand)}
.news-excerpt{color:var(--ink-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:20px;font-size:13px;color:var(--ink-3)}
.news-list{border-top:1px solid var(--line)}
.news-row{display:grid;gap:6px 18px;grid-template-columns:1fr;padding:18px 6px;border-bottom:1px solid var(--line);transition:background .24s var(--ease)}
@media(min-width:900px){.news-row{grid-template-columns:minmax(0,2.2fr) minmax(0,3fr) auto auto;align-items:center}}
.news-row:hover{background:rgba(237,232,223,.55)}
.news-row-title{font-weight:600;font-size:15.5px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row:hover .news-row-title{color:var(--brand)}
.news-row-sum{color:var(--ink-3);font-size:14px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row time{font-size:13px;color:var(--ink-3);text-align:right}
.dot{display:none}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:16px;padding:56px 24px;text-align:center;border:1px dashed var(--line-strong);border-radius:var(--r-card);background:var(--surface)}
.empty-state svg{width:46px;height:46px;stroke:var(--ink-3);fill:none;stroke-width:1.4}
.empty-state p{color:var(--ink-2);font-size:15px}

/* ---------- trust ---------- */
.stats{display:grid;gap:24px;grid-template-columns:repeat(2,1fr);margin-bottom:44px}
@media(min-width:900px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{padding:22px 0;border-top:2px solid var(--accent)}
.stat b{display:block;font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800;color:var(--brand);line-height:1.1;letter-spacing:-.02em}
.stat span{font-size:13.5px;color:var(--ink-3)}
.quote-track{display:flex;gap:18px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none}
.quote-track::-webkit-scrollbar{display:none}
.quote{flex:0 0 82%;max-width:380px;scroll-snap-align:start;background:var(--surface-2);border-radius:var(--r-card);padding:22px;border:1px solid var(--line)}
@media(min-width:900px){.quote{flex:0 0 31%}}
.quote p{font-size:15px;color:var(--ink-2);line-height:1.8}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:18px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--accent);color:#F6F3ED;display:grid;place-items:center;font-weight:700;font-size:15px;flex:0 0 40px}
.quote-who strong{display:block;font-size:14px;font-weight:600}
.quote-who span{font-size:12.5px;color:var(--ink-3)}
.cert-bar{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;padding-top:26px;border-top:1px solid var(--line)}
.cert{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:8px 16px;background:rgba(255,255,255,.6)}

/* ---------- picks ---------- */
.pick-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:700px){.pick-grid{grid-template-columns:repeat(2,1fr)}}
.pick{padding:0;overflow:hidden}
.pick-media{overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.pick-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease)}
.pick:hover .pick-media img{transform:scale(1.04)}
.pick-body{padding:22px 24px 26px}
.pick-body h3{font-size:1.08rem;font-weight:600;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-body p{font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;font-size:12.5px;color:var(--ink-3)}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 2px;font-weight:600;font-size:16px;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 22px;width:22px;height:22px;position:relative;transition:transform .24s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--accent);border-radius:2px}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--accent)}
.faq-body{padding:0 34px 22px 2px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.faq-body p + p{margin-top:10px}

/* ---------- cta ---------- */
.cta{background:var(--bg-deep);color:#EDE8DF;padding:64px 0}
@media(min-width:1024px){.cta{padding:96px 0}}
.cta-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media(min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:64px;align-items:center}}
.cta h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.cta p{color:rgba(237,232,223,.72);margin-top:16px;max-width:34em;font-size:15.5px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field label{font-size:13px;color:rgba(237,232,223,.66);letter-spacing:.03em}
.form-input{
  height:48px;border-radius:12px;border:1px solid rgba(237,232,223,.22);
  background:rgba(255,255,255,.06);padding:0 16px;font-size:15px;color:#fff;width:100%;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.form-input::placeholder{color:rgba(237,232,223,.42)}
.form-input:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(46,140,116,.28);background:rgba(255,255,255,.1)}
.form-row{display:flex;flex-direction:column;gap:12px;margin-top:22px}
@media(min-width:560px){.form-row{flex-direction:row;align-items:flex-end}}
.form-row .btn{height:48px}
.form-note{font-size:12.5px;color:rgba(237,232,223,.5);margin-top:14px;line-height:1.7}

/* ---------- footer ---------- */
.footer{background:var(--bg-deep);color:#C9C3B8;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}}
.footer .logo{color:#F2EDE4}
.footer .logo-text .thin{color:rgba(242,237,228,.62)}
.footer-about{margin-top:18px;font-size:14px;color:rgba(201,195,184,.78);max-width:30em;line-height:1.8}
.footer-contact{margin-top:18px;font-size:13.5px;color:rgba(201,195,184,.7)}
.footer-contact span{display:block;margin-top:6px}
.footer h4{font-size:13px;letter-spacing:.12em;color:rgba(242,237,228,.55);font-weight:600;margin-bottom:16px}
.footer-links li + li{margin-top:10px}
.footer-links a{font-size:14.5px;color:rgba(201,195,184,.86);display:inline-block;transition:color .24s var(--ease),transform .24s var(--ease)}
.footer-links a:hover{color:var(--accent-2);transform:translateX(2px)}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(237,232,223,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:12.5px;color:rgba(201,195,184,.55);
}

/* ---------- tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;height:60px;
  background:rgba(255,255,255,.96);border-top:1px solid var(--line);
  display:flex;padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -10px 30px -24px rgba(20,18,15,.6);
}
@media(min-width:1024px){.tabbar{display:none}}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10px;color:var(--ink-3);position:relative;transition:color .24s var(--ease)}
.tab-item i{font-size:17px}
.tab-item.is-active{color:var(--brand)}
.tab-item.is-active::before{content:"";position:absolute;top:5px;width:5px;height:5px;border-radius:50%;background:var(--brand)}
.tab-item.is-active i{margin-top:4px}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .64s var(--ease),transform .64s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .glow{animation:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category1 */
:root{
  --bg:#F6F3ED;
  --bg-deep:#0F1413;
  --surface:#FFFFFF;
  --surface-2:#EDE8DF;
  --ink:#191714;
  --ink-2:#4B463F;
  --ink-3:#8B8478;
  --brand:#DA4B22;
  --brand-600:#B93A16;
  --accent:#14453B;
  --accent-2:#2E8C74;
  --line:rgba(25,23,20,.10);
  --line-strong:rgba(25,23,20,.18);
  --radius-card:18px;
  --radius-pic:20px;
  --shadow-card:0 1px 2px rgba(20,18,15,.04), 0 18px 40px -24px rgba(20,18,15,.16);
  --shadow-hover:0 2px 4px rgba(20,18,15,.05), 0 26px 50px -24px rgba(20,18,15,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--accent-2);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;height:72px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease),backdrop-filter .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,243,237,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -22px rgba(20,18,15,.35);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{width:30px;height:30px;flex:0 0 30px;display:block;}
.logo-mark svg{width:100%;height:100%;display:block;}
.logo-text{font-weight:800;font-size:1.06rem;letter-spacing:-.01em;white-space:nowrap;}
.logo-text .thin{font-weight:500;color:var(--ink-2);margin-left:2px;}
.main-nav{display:none;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:.95rem;font-weight:500;color:var(--ink-2);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);
  transition:width .38s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{width:100%;}
.header-cta{display:flex;align-items:center;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;line-height:1;white-space:nowrap;
  padding:14px 28px;font-size:.95rem;border:1px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(218,75,34,.9);}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(185,58,22,.95);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -12px rgba(185,58,22,.9);}
.btn-ghost{background:transparent;color:var(--accent);border-color:var(--accent);}
.btn-ghost:hover{background:rgba(20,69,59,.08);color:var(--accent);}
.btn-sm{padding:11px 20px;font-size:.88rem;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--accent);}
.link-arrow i{transition:transform .25s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 移动端底部 Tab ============ */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);align-items:center;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--ink-3);height:100%;
}
.mobile-tab a i{font-size:17px;line-height:1;}
.mobile-tab a.is-active{color:var(--brand);}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:6px;width:5px;height:5px;border-radius:50%;background:var(--brand);
}
body{padding-bottom:80px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--ink-3);padding-top:28px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--accent-2);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{padding:36px 0 24px;}
.cat-hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
.cat-hero h1{
  font-size:clamp(2.1rem,5.2vw,3.3rem);font-weight:800;line-height:1.12;letter-spacing:-.02em;margin-bottom:18px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.cat-hero .lede{font-size:1.05rem;color:var(--ink-2);max-width:36em;margin-bottom:26px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.cat-hero-media{position:relative;border-radius:var(--radius-pic);overflow:hidden;box-shadow:var(--shadow-card);}
.cat-hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,20,19,.06),rgba(15,20,19,.34));
}
.cat-hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(246,243,237,.94);border-radius:999px;padding:8px 16px;
  font-size:.8rem;font-weight:600;color:var(--accent);
}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-tight{padding-top:24px;}
.section-head{margin-bottom:44px;max-width:760px;}
.title-bar{
  position:relative;padding-left:18px;
  font-size:clamp(1.6rem,3vw,2.3rem);font-weight:700;line-height:1.24;margin-bottom:14px;
}
.title-bar::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--accent);
}
.section-head p{color:var(--ink-2);}
.eyebrow{font-size:13px;letter-spacing:.12em;color:var(--ink-3);text-transform:uppercase;margin-bottom:10px;display:block;}

/* ============ 图文交替 ============ */
.zigzag{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
.zigzag + .zigzag{margin-top:72px;}
.zigzag-media{border-radius:var(--radius-pic);overflow:hidden;box-shadow:var(--shadow-card);}
.zigzag-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease);}
.zigzag-media:hover img{transform:scale(1.04);}
.zigzag-body h3{font-size:1.35rem;font-weight:700;margin-bottom:14px;line-height:1.35;}
.zigzag-body p{color:var(--ink-2);margin-bottom:14px;}
.zigzag-body .mini-list{margin-top:18px;display:grid;gap:10px;}
.zigzag-body .mini-list li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-2);font-size:.95rem;}
.zigzag-body .mini-list i{color:var(--accent-2);margin-top:6px;font-size:.7rem;}

/* ============ 编号特性 ============ */
.spec-grid{display:grid;grid-template-columns:1fr;gap:8px;border-top:1px solid var(--line);}
.spec-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.spec-num{
  font-size:1.05rem;font-weight:800;color:var(--brand);letter-spacing:.04em;
  min-width:44px;line-height:1.6;
}
.spec-item h3{font-size:1.15rem;font-weight:700;margin-bottom:8px;}
.spec-item p{color:var(--ink-2);font-size:.96rem;max-width:60em;}

/* ============ 数据条 ============ */
.stat-bar{
  background:var(--surface-2);border-radius:var(--radius-card);
  padding:34px 26px;display:grid;grid-template-columns:repeat(2,1fr);gap:26px 18px;
}
.stat-item{text-align:left;position:relative;padding-left:18px;}
.stat-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line-strong);}
.stat-item:first-child::before,
.stat-item:nth-child(odd)::before{opacity:0;}
.stat-num{font-size:clamp(1.7rem,4vw,2.3rem);font-weight:800;color:var(--brand);line-height:1.1;letter-spacing:-.02em;}
.stat-label{font-size:.86rem;color:var(--ink-3);margin-top:6px;letter-spacing:.03em;}

/* ============ 入口一览 ============ */
.entry-list{border-top:1px solid var(--line);}
.entry-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
  padding:20px 12px;border-bottom:1px solid var(--line);border-radius:12px;
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.entry-row:hover{background:var(--surface);transform:translateX(3px);}
.entry-row:hover .entry-title{color:var(--brand);}
.entry-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);}
.entry-title{font-weight:700;font-size:1rem;transition:color .25s var(--ease);}
.entry-desc{font-size:.9rem;color:var(--ink-3);margin-top:2px;}
.entry-row .entry-meta{font-size:.82rem;color:var(--ink-3);letter-spacing:.04em;white-space:nowrap;}

/* ============ CTA ============ */
.cta-band{background:var(--bg-deep);color:#F6F3ED;border-radius:var(--radius-card);padding:44px 28px;}
.cta-band h2{color:#F6F3ED;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;line-height:1.25;margin-bottom:12px;}
.cta-band p{color:rgba(246,243,237,.72);max-width:34em;margin-bottom:26px;}
.cta-band .btn-ghost{color:#F6F3ED;border-color:rgba(246,243,237,.5);}
.cta-band .btn-ghost:hover{background:rgba(246,243,237,.12);color:#F6F3ED;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ============ 页脚 ============ */
.footer{background:var(--bg-deep);color:rgba(246,243,237,.72);margin-top:80px;padding:64px 0 24px;}
.footer .logo{color:#F6F3ED;}
.footer .logo-text .thin{color:rgba(246,243,237,.6);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(246,243,237,.14);}
.footer-about{font-size:.9rem;line-height:1.9;margin:16px 0;color:rgba(246,243,237,.62);max-width:32em;}
.footer-contact{font-size:.85rem;color:rgba(246,243,237,.55);display:grid;gap:4px;}
.footer h4{color:#F6F3ED;font-size:.95rem;font-weight:700;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:rgba(246,243,237,.66);font-size:.9rem;display:inline-block;transition:color .25s var(--ease),transform .25s var(--ease);}
.footer-links a:hover{color:var(--accent-2);transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;font-size:.82rem;color:rgba(246,243,237,.5);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity .64s var(--ease),transform .64s var(--ease);}

@media (min-width:768px){
  .cat-hero-grid{grid-template-columns:1.1fr .9fr;}
  .zigzag{grid-template-columns:1fr 1fr;gap:52px;}
  .zigzag.reverse .zigzag-media{order:2;}
  .stat-bar{grid-template-columns:repeat(4,1fr);padding:40px 34px;}
  .stat-item::before{opacity:1;}
  .stat-item:first-child::before{opacity:0;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
  .cta-band{padding:56px 48px;}
}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .mobile-tab{display:none;}
  body{padding-bottom:0;}
  .cat-hero{padding:56px 0 36px;}
  .section-tight{padding-top:36px;}
}
@media (max-width:1023px){
  .header-cta .btn{display:inline-flex;}
}
@media (max-width:640px){
  .logo-text{font-size:.98rem;}
  .logo-mark{width:26px;height:26px;flex-basis:26px;}
  .header-cta .btn{padding:10px 16px;font-size:.82rem;}
  .entry-row{grid-template-columns:auto 1fr;}
  .entry-row .entry-meta{display:none;}
  .footer{padding-top:48px;}
}
@media (min-width:1440px){
  .container{max-width:1240px;}
  .section{padding:128px 0;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
    --bg:#F6F3ED;
    --bg-deep:#0F1413;
    --surface:#FFFFFF;
    --surface-2:#EDE8DF;
    --ink:#191714;
    --ink-2:#4B463F;
    --ink-3:#8B8478;
    --brand:#DA4B22;
    --brand-600:#B93A16;
    --accent:#14453B;
    --accent-2:#2E8C74;
    --line:rgba(25,23,20,.10);
    --line-strong:rgba(25,23,20,.18);
    --radius-card:18px;
    --radius-pic:20px;
    --radius-pill:999px;
    --shadow-card:0 1px 2px rgba(20,18,15,.04), 0 18px 40px -24px rgba(20,18,15,.16);
    --shadow-lift:0 2px 6px rgba(20,18,15,.06), 0 26px 52px -26px rgba(20,18,15,.24);
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',sans-serif;
    font-size:16.5px;
    line-height:1.85;
    font-variant-numeric:tabular-nums;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
  ul,ol{padding-left:1.15em;}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.container{padding:0 24px;}}
  @media (min-width:1024px){.container{padding:0 32px;}}

  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--accent-2);
    outline-offset:2px;
    border-radius:4px;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-pill);
    padding:14px 28px;
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:background-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(218,75,34,.75);}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(185,58,22,.7);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent);}
  .btn-ghost:hover{background:rgba(20,69,59,.08);transform:translateY(-1px);}
  .btn-sm{padding:10px 20px;font-size:14px;}
  .btn-block{width:100%;}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--accent);font-weight:600;font-size:15px;
    border-bottom:1px solid rgba(20,69,59,.25);
    padding-bottom:2px;
    transition:color .25s var(--ease),border-color .25s var(--ease);
  }
  .link-arrow .arrow{transition:transform .3s var(--ease);}
  .link-arrow:hover{color:var(--accent-2);border-color:var(--accent-2);}
  .link-arrow:hover .arrow{transform:translateX(4px);}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    border-radius:var(--radius-pill);
    padding:5px 13px;
    font-size:12px;font-weight:600;letter-spacing:.03em;line-height:1.5;
  }
  .badge-accent{background:rgba(46,140,116,.12);color:var(--accent);}
  .badge-warm{background:rgba(218,75,34,.12);color:var(--brand-600);}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:transparent;
    transition:background-color .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
    border-bottom:1px solid transparent;
  }
  .site-header.is-scrolled{
    background:rgba(246,243,237,.94);
    backdrop-filter:saturate(160%) blur(10px);
    border-bottom:1px solid var(--line);
    box-shadow:0 10px 30px -24px rgba(20,18,15,.5);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
  .logo{display:inline-flex;align-items:center;gap:10px;}
  .logo-mark svg{width:28px;height:28px;display:block;}
  .logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
  .logo-text .thin{font-weight:500;color:var(--ink-3);margin-left:2px;}
  .main-nav{display:none;}
  @media (min-width:1024px){.main-nav{display:flex;align-items:center;gap:26px;}}
  .nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:8px 0;transition:color .25s var(--ease);}
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
    background:var(--brand);transform:scaleX(0);transform-origin:left;
    transition:transform .3s var(--ease);
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--ink);font-weight:600;}
  .header-cta{display:flex;align-items:center;gap:10px;}
  .header-cta .btn-ghost{display:none;}
  @media (min-width:640px){.header-cta .btn-ghost{display:inline-flex;}}

  /* ---------- 面包屑 ---------- */
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.04em;color:var(--ink-3);
    padding-top:28px;
  }
  .crumb a{color:var(--ink-3);transition:color .2s var(--ease);}
  .crumb a:hover{color:var(--accent-2);}
  .crumb .sep{color:var(--line-strong);}
  .crumb .now{color:var(--ink);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  /* ---------- 文章头 ---------- */
  .post-hero{padding-bottom:8px;}
  .post-head{max-width:860px;padding:26px 0 30px;}
  .post-head h1{
    font-size:clamp(1.9rem,4.4vw,3rem);
    font-weight:800;letter-spacing:-.02em;line-height:1.2;
    margin:18px 0 0;
  }
  .post-lead{
    margin-top:18px;
    font-size:16.5px;line-height:1.9;color:var(--ink-2);
    max-width:820px;
  }
  .post-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
    margin-top:22px;font-size:13px;letter-spacing:.04em;color:var(--ink-3);
  }
  .post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}

  .post-cover{margin-top:8px;}
  .post-cover img{
    width:100%;aspect-ratio:16/9;object-fit:cover;
    border-radius:var(--radius-pic);
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
  }
  .post-cover figcaption{margin-top:12px;font-size:13px;color:var(--ink-3);letter-spacing:.03em;}

  /* ---------- 正文布局 ---------- */
  .post-main{padding:56px 0 72px;}
  @media (min-width:1024px){.post-main{padding:72px 0 96px;}}
  .post-layout{display:block;}
  @media (min-width:1280px){
    .post-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:64px;justify-content:center;}
  }

  .article-body{font-size:17px;line-height:1.9;color:var(--ink);}
  .article-body > * + *{margin-top:1.2em;}
  .article-body h2{
    position:relative;
    font-size:clamp(1.35rem,2.4vw,1.65rem);
    font-weight:700;line-height:1.4;
    margin-top:2em;padding-left:16px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;
    background:var(--accent);border-radius:2px;
  }
  .article-body h3{font-size:1.14rem;font-weight:600;line-height:1.55;margin-top:1.7em;}
  .article-body p{margin-top:1.2em;color:var(--ink-2);}
  .article-body strong{color:var(--ink);font-weight:700;}
  .article-body ul,.article-body ol{margin-top:1.1em;padding-left:1.3em;color:var(--ink-2);}
  .article-body li{margin-top:.55em;}
  .article-body ul li::marker{color:var(--accent);}
  .article-body ol li::marker{color:var(--accent);font-weight:700;}
  .article-body blockquote{
    margin-top:1.4em;padding:18px 22px;
    background:var(--surface-2);
    border-left:4px solid var(--brand);
    border-radius:0 14px 14px 0;
    color:var(--ink-2);font-size:16px;
  }
  .article-body img{
    width:100%;height:auto;border-radius:var(--radius-pic);
    border:1px solid var(--line);margin-top:1.5em;
  }
  .article-body figure{margin-top:1.5em;}
  .article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-3);}
  .article-body a{color:var(--accent);border-bottom:1px solid rgba(20,69,59,.3);transition:color .2s var(--ease),border-color .2s var(--ease);}
  .article-body a:hover{color:var(--accent-2);border-color:var(--accent-2);}
  .article-body table{
    width:100%;border-collapse:collapse;margin-top:1.5em;
    font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  }
  .article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
  .article-body th{background:var(--surface-2);font-weight:600;color:var(--ink);}
  .article-body tbody tr{transition:background-color .2s var(--ease);}
  .article-body tbody tr:hover{background:rgba(20,69,59,.05);}
  .article-body code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.92em;}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

  /* ---------- 侧栏目录 ---------- */
  .post-aside{display:none;}
  @media (min-width:1280px){
    .post-aside{display:block;}
    .toc-card{position:sticky;top:96px;}
  }
  .toc-card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:22px;
    box-shadow:var(--shadow-card);
  }
  .toc-title{font-size:13px;letter-spacing:.08em;color:var(--ink-3);font-weight:600;}
  .toc-list{list-style:none;padding:0;margin:14px 0 0;}
  .toc-list li{margin:0;}
  .toc-list a{
    display:block;position:relative;
    padding:8px 0 8px 14px;
    font-size:14px;color:var(--ink-2);line-height:1.6;
    border-left:2px solid var(--line);
    transition:color .2s var(--ease),border-color .2s var(--ease),padding-left .2s var(--ease);
  }
  .toc-list a:hover{color:var(--accent);}
  .toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);font-weight:600;}
  .toc-list .lv3 a{padding-left:26px;font-size:13.5px;color:var(--ink-3);}

  /* ---------- 空态 ---------- */
  .empty-state{
    text-align:center;padding:56px 24px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  }
  .empty-state svg{width:46px;height:46px;margin:0 auto 16px;stroke:var(--ink-3);}
  .empty-state p{color:var(--ink-2);font-size:15.5px;}
  .empty-state .btn{margin-top:20px;}

  /* ---------- 尾部导航 / 推荐 ---------- */
  .post-foot{padding:8px 0 72px;}
  .foot-links{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:26px;}
  .related{margin-top:56px;}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px;}
  .section-head h2{font-size:clamp(1.35rem,2.4vw,1.8rem);font-weight:700;line-height:1.3;}
  .section-head .eyebrow{font-size:13px;letter-spacing:.12em;color:var(--ink-3);margin-bottom:8px;}
  .card-grid{display:grid;gap:22px;grid-template-columns:1fr;}
  @media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  .card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:24px;
    box-shadow:var(--shadow-card);
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
    display:flex;flex-direction:column;height:100%;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(218,75,34,.22);}
  .card h3{font-size:1.1rem;font-weight:600;line-height:1.5;margin-top:14px;}
  .card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2);}
  .card .link-arrow{margin-top:auto;padding-top:18px;border-bottom:0;}
  .card-thumb{overflow:hidden;border-radius:14px;}
  .card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease);}
  .card:hover .card-thumb img{transform:scale(1.04);}

  /* ---------- 深色 CTA ---------- */
  .cta-dark{
    background:var(--bg-deep);color:#F6F3ED;
    border-radius:24px;padding:48px 28px;
    display:grid;gap:32px;
    margin:0 0 72px;
  }
  @media (min-width:900px){.cta-dark{grid-template-columns:1.05fr .95fr;align-items:center;padding:64px 56px;}}
  .cta-dark h2{font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:700;line-height:1.3;color:#F6F3ED;}
  .cta-dark p{margin-top:16px;color:rgba(246,243,237,.72);font-size:15.5px;line-height:1.85;max-width:520px;}
  .cta-form{display:grid;gap:14px;}
  .field-label{font-size:13px;letter-spacing:.04em;color:rgba(246,243,237,.66);}
  .cta-form input{
    height:48px;width:100%;border-radius:12px;
    border:1px solid rgba(246,243,237,.22);
    background:rgba(246,243,237,.06);
    color:#F6F3ED;padding:0 16px;font-size:15px;
    transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  }
  .cta-form input::placeholder{color:rgba(246,243,237,.42);}
  .cta-form input:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(46,140,116,.28);}
  .form-note{font-size:12.5px;color:rgba(246,243,237,.55);line-height:1.7;}

  /* ---------- 页脚 ---------- */
  .footer{background:var(--bg-deep);color:rgba(246,243,237,.78);padding:64px 0 28px;margin-top:8px;}
  .footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}}
  .footer .logo-text{color:#F6F3ED;}
  .footer .logo-text .thin{color:rgba(246,243,237,.55);}
  .footer-about{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(246,243,237,.66);max-width:340px;}
  .footer-contact{margin-top:18px;font-size:13.5px;color:rgba(246,243,237,.6);line-height:1.9;display:flex;flex-direction:column;}
  .footer h4{font-size:14px;font-weight:600;color:#F6F3ED;letter-spacing:.04em;margin-bottom:16px;}
  .footer-links{list-style:none;padding:0;margin:0;}
  .footer-links li{margin-bottom:11px;}
  .footer-links a{
    font-size:14px;color:rgba(246,243,237,.7);
    transition:color .22s var(--ease),transform .22s var(--ease);
    display:inline-block;
  }
  .footer-links a:hover{color:var(--accent-2);transform:translateX(2px);}
  .footer-bottom{
    margin-top:44px;padding-top:22px;
    border-top:1px solid rgba(246,243,237,.14);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:rgba(246,243,237,.52);letter-spacing:.02em;
  }

  /* ---------- 移动端底部 Tab ---------- */
  .mobile-tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    display:grid;grid-template-columns:repeat(5,1fr);
    background:rgba(246,243,237,.97);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    height:calc(60px + env(safe-area-inset-bottom));
  }
  @media (min-width:1024px){.mobile-tabbar{display:none;}}
  .tab-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;color:var(--ink-3);letter-spacing:.02em;
    transition:color .22s var(--ease);
  }
  .tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;}
  .tab-item.is-active{color:var(--brand);font-weight:600;}
  .tab-item.is-active::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--brand);}
  @media (max-width:1023px){
    body{padding-bottom:calc(60px + env(safe-area-inset-bottom));}
  }

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);}
  .reveal.is-in{opacity:1;transform:none;transition:opacity .64s var(--ease),transform .64s var(--ease);}
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important;}
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category2 */
:root{
    --bg:#F6F3ED;
    --bg-deep:#0F1413;
    --surface:#FFFFFF;
    --surface-2:#EDE8DF;
    --ink:#191714;
    --ink-2:#4B463F;
    --ink-3:#8B8478;
    --brand:#DA4B22;
    --brand-600:#B93A16;
    --accent:#14453B;
    --accent-2:#2E8C74;
    --line:rgba(25,23,20,.10);
    --line-strong:rgba(25,23,20,.18);
    --radius-card:18px;
    --radius-img:20px;
    --shadow-card:0 1px 2px rgba(20,18,15,.04), 0 18px 40px -24px rgba(20,18,15,.16);
    --shadow-card-hover:0 2px 4px rgba(20,18,15,.06), 0 28px 56px -24px rgba(20,18,15,.28);
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16.5px;
    line-height:1.85;
    font-variant-numeric:tabular-nums;
    padding-bottom:80px;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--accent);text-decoration:none;transition:color .2s var(--ease);}
  a:hover{color:var(--accent-2);}
  button,input{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:4px;}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
  @media (min-width:640px){.container{padding:0 24px;}}
  @media (min-width:1024px){.container{padding:0 32px;}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:transparent;
    transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
    border-bottom:1px solid transparent;
  }
  .site-header.is-scrolled{
    background:rgba(246,243,237,.92);
    backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--line);
    box-shadow:0 10px 30px -22px rgba(20,18,15,.35);
  }
  .header-inner{display:flex;align-items:center;gap:20px;height:72px;}
  .logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
  .logo:hover{color:var(--ink);}
  .logo-mark{width:30px;height:30px;display:inline-block;flex:0 0 auto;}
  .logo-mark svg{width:100%;height:100%;display:block;}
  .logo-text{font-size:1.02rem;font-weight:800;letter-spacing:-0.01em;white-space:nowrap;}
  .logo-text .thin{font-weight:500;color:var(--ink-2);margin-left:2px;}

  .main-nav{display:none;}
  .nav-link{
    position:relative;
    padding:6px 2px;
    font-size:.95rem;
    color:var(--ink-2);
    font-weight:500;
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left;
    transition:transform .28s var(--ease);
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--ink);font-weight:600;}

  .header-cta{margin-left:auto;display:flex;align-items:center;gap:12px;}

  @media (min-width:1024px){
    .main-nav{display:flex;align-items:center;gap:28px;margin-left:24px;}
    .header-inner{gap:8px;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;border:1px solid transparent;
    font-weight:600;font-size:.95rem;line-height:1;
    padding:14px 28px;cursor:pointer;
    transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(218,75,34,.85);}
  .btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(185,58,22,.9);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--accent);border-color:var(--accent);}
  .btn-ghost:hover{background:rgba(20,69,59,.08);color:var(--accent);transform:translateY(-1px);}
  .btn-sm{padding:10px 20px;font-size:.9rem;}
  .btn-light{background:#fff;color:var(--bg-deep);}
  .btn-light:hover{background:#fff;color:var(--bg-deep);transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(0,0,0,.5);}

  .text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--accent);}
  .text-link .arrow{transition:transform .22s var(--ease);}
  .text-link:hover .arrow{transform:translateX(4px);}

  /* ---------- 通用截面 ---------- */
  .section{padding:64px 0;}
  @media (min-width:768px){.section{padding:88px 0;}}
  @media (min-width:1024px){.section{padding:104px 0;}}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.04em;color:var(--ink-3);
    margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--line-strong);}

  .h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;line-height:1.2;}
  .h3{font-size:1.15rem;font-weight:600;line-height:1.45;}
  .lead{color:var(--ink-2);font-size:1rem;line-height:1.85;}

  .h2-num{display:flex;align-items:baseline;gap:14px;}
  .h2-num .num{
    font-size:.85rem;font-weight:700;color:var(--brand);
    letter-spacing:.06em;padding-top:4px;
  }

  .badge{
    display:inline-flex;align-items:center;
    padding:4px 12px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1.6;
    background:rgba(20,69,59,.09);color:var(--accent);
  }
  .badge-warm{background:rgba(218,75,34,.12);color:var(--brand-600);}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{padding:22px 0 0;}
  .breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);letter-spacing:.02em;}
  .breadcrumb-list a{color:var(--ink-3);}
  .breadcrumb-list a:hover{color:var(--accent-2);}
  .breadcrumb-list .sep{color:var(--line-strong);}
  .breadcrumb-list .current{color:var(--ink);font-weight:600;}

  /* ---------- 小 Hero ---------- */
  .hero{padding:40px 0 0;}
  .hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
  .hero h1{
    font-size:clamp(2.1rem,5.4vw,3.5rem);
    font-weight:800;line-height:1.1;letter-spacing:-0.02em;
    margin-bottom:18px;
  }
  .hero h1 .hl{
    color:var(--brand);
  }
  .hero-sub{color:var(--ink-2);font-size:1.02rem;max-width:560px;margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
  .hero-figure{position:relative;}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:var(--radius-img);
    box-shadow:var(--shadow-card);
  }
  .hero-figure::after{
    content:"";position:absolute;inset:0;border-radius:var(--radius-img);
    background:linear-gradient(180deg,rgba(15,20,19,.02),rgba(15,20,19,.16));
    pointer-events:none;
  }
  .hero-chips{
    position:absolute;left:16px;right:16px;bottom:16px;
    display:flex;flex-wrap:wrap;gap:8px;
  }
  .hero-chips span{
    background:rgba(246,243,237,.94);
    color:var(--ink);
    font-size:12.5px;font-weight:600;
    padding:6px 12px;border-radius:999px;
  }

  @media (min-width:1024px){
    .hero{padding:56px 0 0;}
    .hero-grid{grid-template-columns:7fr 5fr;gap:56px;}
  }

  /* ---------- 筛选胶囊条 ---------- */
  .filter-bar{margin-bottom:32px;}
  .filter-scroll{
    display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .filter-scroll::-webkit-scrollbar{display:none;}
  .pill{
    flex:0 0 auto;
    border:1px solid var(--line);
    background:var(--surface);
    color:var(--ink-2);
    padding:9px 20px;border-radius:999px;
    font-size:14px;font-weight:600;cursor:pointer;
    transition:all .22s var(--ease);
  }
  .pill:hover{border-color:rgba(218,75,34,.35);color:var(--ink);}
  .pill.is-active{background:var(--accent);border-color:var(--accent);color:#F6F3ED;}

  /* ---------- 大图卡片网格 ---------- */
  .play-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:640px){.play-grid{grid-template-columns:repeat(2,1fr);}}

  .play-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    display:flex;flex-direction:column;
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .play-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-card-hover);
    border-color:rgba(218,75,34,.28);
  }
  .play-card figure{margin:0;overflow:hidden;position:relative;}
  .play-card figure img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    transition:transform .6s var(--ease);
  }
  .play-card:hover figure img{transform:scale(1.04);}
  .play-card .tag-float{
    position:absolute;left:14px;top:14px;
    background:rgba(15,20,19,.78);color:#F6F3ED;
    font-size:12px;font-weight:600;
    padding:5px 12px;border-radius:999px;
  }
  .play-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .play-card .body p{color:var(--ink-2);font-size:.95rem;}
  .meta-row{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--ink-3);letter-spacing:.02em;}
  .meta-row b{color:var(--ink);font-weight:600;}
  .play-card .foot{margin-top:auto;padding-top:6px;}

  /* ---------- 横向滑动条目带 ---------- */
  .rail-wrap{position:relative;}
  .rail{
    display:flex;gap:20px;
    overflow-x:auto;padding:6px 4px 22px;
    scroll-snap-type:x mandatory;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .rail::-webkit-scrollbar{display:none;}
  .rail-item{
    flex:0 0 82%;
    max-width:340px;
    scroll-snap-align:start;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  @media (min-width:768px){.rail-item{flex:0 0 46%;}}
  @media (min-width:1024px){.rail-item{flex:0 0 31%;}}
  .rail-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(20,69,59,.28);}
  .rail-item img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .rail-item .rail-body{padding:20px;}
  .rail-item h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;}
  .rail-item p{color:var(--ink-2);font-size:.9rem;margin-bottom:12px;}
  .rail-hint{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;margin-top:4px;}
  .rail-hint::before{content:"";width:22px;height:1px;background:var(--line-strong);}

  /* ---------- 步骤流程 ---------- */
  .steps{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line);}
  .step{
    display:grid;grid-template-columns:auto 1fr;gap:20px;
    padding:26px 0;border-bottom:1px solid var(--line);
  }
  .step .no{
    width:44px;height:44px;flex:0 0 auto;
    border-radius:999px;background:var(--surface-2);
    display:flex;align-items:center;justify-content:center;
    font-weight:700;color:var(--accent);font-size:.9rem;
  }
  .step h3{margin-bottom:6px;}
  .step p{color:var(--ink-2);font-size:.95rem;}
  @media (min-width:640px){
    .steps{grid-template-columns:repeat(2,1fr);gap:0 40px;}
    .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--line);}
    .step:nth-child(3),.step:nth-child(4){border-bottom:1px solid var(--line);}
  }

  /* ---------- FAQ ---------- */
  .faq{border-top:1px solid var(--line);}
  .faq details{border-bottom:1px solid var(--line);}
  .faq summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    min-height:56px;padding:14px 0;
    font-weight:600;font-size:1rem;
    transition:color .2s var(--ease);
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary:hover{color:var(--brand-600);}
  .faq .plus{
    position:relative;width:20px;height:20px;flex:0 0 auto;
    transition:transform .24s var(--ease);
  }
  .faq .plus::before,.faq .plus::after{
    content:"";position:absolute;background:var(--ink-3);border-radius:2px;
  }
  .faq .plus::before{left:0;right:0;top:9px;height:2px;}
  .faq .plus::after{top:0;bottom:0;left:9px;width:2px;}
  .faq details[open] .plus{transform:rotate(45deg);}
  .faq .answer{padding:0 0 22px;color:var(--ink-2);font-size:15px;line-height:1.8;max-width:820px;}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--bg-deep);
    color:#EFEBE3;
    border-radius:0;
    padding:64px 0;
  }
  @media (min-width:1024px){.cta-band{padding:88px 0;}}
  .cta-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
  @media (min-width:1024px){.cta-grid{grid-template-columns:6fr 6fr;gap:64px;}}
  .cta-band h2{color:#F6F3ED;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;line-height:1.25;margin-bottom:14px;}
  .cta-band p{color:rgba(246,243,237,.72);font-size:.98rem;}
  .cta-form{display:flex;flex-direction:column;gap:14px;}
  .cta-form label{font-size:13px;letter-spacing:.04em;color:rgba(246,243,237,.66);}
  .cta-input{
    height:48px;width:100%;
    background:rgba(246,243,237,.07);
    border:1px solid rgba(246,243,237,.24);
    border-radius:12px;
    padding:0 16px;color:#F6F3ED;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .cta-input::placeholder{color:rgba(246,243,237,.42);}
  .cta-input:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(46,140,116,.28);}
  .cta-note{font-size:12.5px;color:rgba(246,243,237,.5);}

  /* ---------- 页脚 ---------- */
  .footer{background:var(--bg-deep);color:rgba(246,243,237,.72);padding:64px 0 28px;margin-top:0;}
  .footer .logo{color:#F6F3ED;}
  .footer .logo:hover{color:#F6F3ED;}
  .footer .logo-text .thin{color:rgba(246,243,237,.6);}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:40px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;}}
  .footer-about{margin:16px 0 18px;font-size:.92rem;line-height:1.8;color:rgba(246,243,237,.66);max-width:340px;}
  .footer-contact{font-size:13px;color:rgba(246,243,237,.56);display:flex;flex-direction:column;gap:6px;}
  .footer h4{color:#F6F3ED;font-size:.95rem;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
  .footer-links li{margin-bottom:12px;}
  .footer-links a{
    color:rgba(246,243,237,.68);font-size:.92rem;
    display:inline-block;
    transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .footer-links a:hover{color:var(--accent-2);transform:translateX(2px);}
  .footer-bottom{
    margin-top:48px;padding-top:22px;border-top:1px solid rgba(246,243,237,.12);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:12.5px;color:rgba(246,243,237,.5);
  }

  /* ---------- 移动端底部 Tab ---------- */
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(246,243,237,.96);
    backdrop-filter:saturate(160%) blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    display:grid;grid-template-columns:repeat(5,1fr);
    height:60px;
  }
  .tab-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;color:var(--ink-3);font-weight:600;
    position:relative;
  }
  .tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .tab-item.is-active{color:var(--brand);}
  .tab-item.is-active::after{
    content:"";position:absolute;top:6px;width:4px;height:4px;border-radius:50%;background:var(--brand);
  }
  @media (min-width:1024px){
    .tabbar{display:none;}
    body{padding-bottom:0;}
  }

  /* ---------- 入场动画 ---------- */
  .reveal{opacity:0;transform:translateY(16px);}
  .reveal.is-in{
    opacity:1;transform:translateY(0);
    transition:opacity .64s var(--ease),transform .64s var(--ease);
  }
  @media (prefers-reduced-motion: reduce){
    .reveal,.reveal.is-in{opacity:1;transform:none;transition:none;}
    html{scroll-behavior:auto;}
    .play-card:hover,.rail-item:hover{transform:none;}
    .play-card:hover figure img{transform:none;}
    .btn:hover{transform:none;}
  }

/* roulang page: category4 */
:root{
  --bg:#F6F3ED;
  --bg-deep:#0F1413;
  --surface:#FFFFFF;
  --surface-2:#EDE8DF;
  --ink:#191714;
  --ink-2:#4B463F;
  --ink-3:#8B8478;
  --brand:#DA4B22;
  --brand-600:#B93A16;
  --accent:#14453B;
  --accent-2:#2E8C74;
  --line:rgba(25,23,20,.10);
  --line-strong:rgba(25,23,20,.18);
  --r-card:18px;
  --r-img:20px;
  --r-btn:999px;
  --shadow-sm:0 1px 2px rgba(20,18,15,.04),0 18px 40px -24px rgba(20,18,15,.16);
  --shadow-lg:0 2px 4px rgba(20,18,15,.05),0 28px 60px -26px rgba(20,18,15,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,Source Han Sans SC,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),background-color .25s var(--ease),transform .25s var(--ease)}
a:hover{color:var(--accent-2)}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1240px !important;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部提示条 ---------- */
.notice-bar{
  background:#FBEADF;
  color:#9C3512;
  border-bottom:1px solid rgba(218,75,34,.22);
  font-size:13.5px;
  line-height:1.6;
}
.notice-bar .container{
  display:flex;
  align-items:center;
  gap:10px;
  padding-top:10px;
  padding-bottom:10px;
}
.notice-dot{
  flex:none;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(218,75,34,.14);
}
.notice-bar strong{font-weight:700}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:transparent;
  transition:background-color .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(246,243,237,.94);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -18px rgba(20,18,15,.35);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
@media (min-width:1024px){.header-inner{height:var(--header-h)}}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:30px;height:30px;display:block}
.logo-mark svg{width:100%;height:100%;display:block}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo-text .thin{font-weight:500;color:var(--ink-2)}
.main-nav{display:none}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px}
  .nav-link{
    position:relative;
    padding:10px 14px;
    font-size:15px;
    color:var(--ink-2);
    border-radius:10px;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:4px;
    height:2px;background:var(--brand);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .3s var(--ease);
    border-radius:2px;
  }
  .nav-link:hover{color:var(--ink)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--ink);font-weight:600}
  .nav-link.is-active::after{transform:scaleX(1)}
}
.header-cta{flex:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  padding:14px 28px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:background-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 26px -16px rgba(218,75,34,.9)}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(185,58,22,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -14px rgba(185,58,22,.8)}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-ghost:hover{background:rgba(20,69,59,.08);color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-on-dark{background:var(--brand);color:#fff}
.btn-on-dark:hover{background:#fff;color:var(--accent)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:15px}
.link-arrow .arrow{display:inline-block;transition:transform .25s var(--ease)}
.link-arrow:hover{color:var(--accent-2)}
.link-arrow:hover .arrow{transform:translateX(4px)}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--ink-3);
  text-transform:none;
}
.section{padding:72px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.section-tight{padding:56px 0}
@media (min-width:1024px){.section-tight{padding:72px 0}}
h1{font-size:clamp(2.1rem,5vw,3.3rem);line-height:1.1;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h3{font-size:1.15rem;font-weight:600;line-height:1.45}
.lead{font-size:1.05rem;color:var(--ink-2);line-height:1.85}
.muted{color:var(--ink-3)}
.meta{font-size:13px;letter-spacing:.04em;color:var(--ink-3)}
.divider{height:1px;background:var(--line)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  padding-top:28px;
}
.breadcrumb a:hover{color:var(--accent-2)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- hero ---------- */
.hero{padding:32px 0 64px}
@media (min-width:1024px){.hero{padding:44px 0 96px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.12fr .88fr;gap:56px}
}
.hero-copy h1{margin-bottom:18px}
.hero-copy .lead{max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:28px}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  margin-top:32px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.fact{min-width:110px}
.fact .fact-num{display:block;font-size:1.4rem;font-weight:800;color:var(--brand);line-height:1.2}
.fact .fact-label{font-size:13px;color:var(--ink-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--shadow-sm);
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  border-radius:var(--r-img);
  background:linear-gradient(180deg,rgba(15,20,19,.05),rgba(15,20,19,.18));
  pointer-events:none;
}
.hero-float{
  position:absolute;
  left:18px;
  bottom:18px;
  right:18px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  box-shadow:var(--shadow-sm);
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.hero-float .dot{
  flex:none;
  width:10px;height:10px;border-radius:50%;
  background:var(--accent-2);
  margin-top:8px;
}
.hero-float p{font-size:13.5px;line-height:1.7;color:var(--ink-2)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(218,75,34,.28);
}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px;line-height:1.8}
.card-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--surface-2);
  color:var(--accent);
  font-weight:800;
  font-size:14px;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.grid-2{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.grid-2{grid-template-columns:repeat(2,1fr)}}
.grid-4{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr);gap:24px}}
@media (min-width:1280px){.grid-4{grid-template-columns:repeat(4,1fr)}}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow-sm)}
.step-list{display:flex;flex-direction:column;gap:0}
.step-list li{
  display:flex;
  gap:16px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.step-list li:first-child{padding-top:0}
.step-list li:last-child{border-bottom:none;padding-bottom:0}
.step-no{
  flex:none;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.step-list h3{margin-bottom:6px;font-size:1.05rem}
.step-list p{font-size:15px;color:var(--ink-2);line-height:1.8}

/* ---------- 表格 ---------- */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.data-table{min-width:620px;font-size:15px}
.data-table thead th{
  background:var(--surface-2);
  color:var(--ink-2);
  font-weight:600;
  font-size:13.5px;
  letter-spacing:.02em;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.data-table tbody td{
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  line-height:1.75;
  vertical-align:top;
}
.data-table tbody tr:last-child td{border-bottom:none}
.data-table tbody tr{transition:background-color .22s var(--ease)}
.data-table tbody tr:hover{background:rgba(46,140,116,.06)}
.data-table td:first-child{color:var(--ink);font-weight:600;white-space:nowrap}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1.6;
}
.badge-green{background:rgba(46,140,116,.12);color:#14614F}
.badge-orange{background:rgba(218,75,34,.12);color:#A2380F}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media (min-width:1024px){.faq-layout{grid-template-columns:1.55fr .95fr;gap:48px}}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:56px;
  padding:16px 0;
  font-weight:600;
  font-size:16px;
  color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .plus{
  flex:none;
  width:22px;height:22px;
  position:relative;
  transition:transform .28s var(--ease);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";
  position:absolute;
  background:var(--ink-3);
  border-radius:2px;
  transition:background-color .25s var(--ease);
}
.faq-item summary .plus::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .plus::after{top:0;bottom:0;left:10px;width:2px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item[open] summary .plus::before,
.faq-item[open] summary .plus::after{background:var(--brand)}
.faq-item .faq-body{
  padding:0 32px 22px 0;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  animation:fadeDown .24s var(--ease);
}
@keyframes fadeDown{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- 联系卡片 ---------- */
.contact-card{
  background:var(--surface-2);
  border-left:3px solid var(--brand);
  border-radius:14px;
  padding:24px;
}
.contact-card h3{margin-bottom:12px}
.contact-card ul{display:flex;flex-direction:column;gap:12px;margin:0 0 20px}
.contact-card li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-2);
}
.contact-card li::before{
  content:"";
  flex:none;
  width:6px;height:6px;border-radius:50%;
  background:var(--accent-2);
  margin-top:10px;
}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px}
.contact-meta{margin-top:16px;font-size:13px;color:var(--ink-3);line-height:1.7}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:var(--bg-deep);
  color:#F3EFE7;
  border-radius:24px;
  padding:44px 24px;
}
@media (min-width:1024px){.cta-band{padding:64px 56px}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:1024px){.cta-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(243,239,231,.72);font-size:15.5px;line-height:1.85;margin-top:14px}
.cta-form{display:flex;flex-direction:column;gap:12px}
.cta-form label{font-size:13.5px;color:rgba(243,239,231,.8)}
.cta-input-row{display:flex;flex-direction:column;gap:12px}
@media (min-width:640px){
  .cta-input-row{flex-direction:row;align-items:center}
  .cta-input-row input{flex:1}
}
.cta-input-row input{
  height:48px;
  border-radius:12px;
  border:1px solid rgba(243,239,231,.25);
  background:#fff;
  color:var(--ink);
  padding:0 16px;
  font-size:15px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.cta-input-row input::placeholder{color:var(--ink-3)}
.cta-input-row input:focus{
  outline:none;
  border-color:var(--accent-2);
  box-shadow:0 0 0 3px rgba(46,140,116,.28);
}
.cta-note{font-size:12.5px;color:rgba(243,239,231,.55);line-height:1.7}

/* ---------- footer ---------- */
.footer{
  background:var(--bg-deep);
  color:rgba(243,239,231,.72);
  padding:64px 0 32px;
  margin-top:72px;
}
@media (min-width:1024px){.footer{margin-top:104px;padding:80px 0 36px}}
.footer .logo-text{color:#F6F3ED}
.footer .logo-text .thin{color:rgba(246,243,237,.65)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}}
.footer-about{margin:18px 0 16px;font-size:14.5px;line-height:1.85;max-width:38ch;color:rgba(243,239,231,.66)}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(243,239,231,.6)}
.footer-contact span{display:block}
.footer h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{
  font-size:14.5px;
  color:rgba(243,239,231,.7);
  display:inline-block;
}
.footer-links a:hover{color:var(--accent-2);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(243,239,231,.14);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(243,239,231,.5);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:60;
  display:flex;
  align-items:center;
  justify-content:space-around;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -20px rgba(20,18,15,.4);
}
@media (min-width:1024px){.mobile-tab{display:none}}
.tab-item{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:10px;
  letter-spacing:.02em;
  color:var(--ink-3);
  position:relative;
  padding-top:4px;
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand);font-weight:600}
.tab-item.is-active::after{
  content:"";
  position:absolute;
  top:0;
  width:22px;height:2px;border-radius:2px;
  background:var(--brand);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .64s var(--ease),transform .64s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .card:hover{transform:none}
}
@media (min-width:1024px){
  body{padding-bottom:0}
}

/* roulang page: category3 */
:root{
  --bg:#F6F3ED;
  --bg-deep:#0F1413;
  --surface:#FFFFFF;
  --surface-2:#EDE8DF;
  --ink:#191714;
  --ink-2:#4B463F;
  --ink-3:#8B8478;
  --brand:#DA4B22;
  --brand-600:#B93A16;
  --accent:#14453B;
  --accent-2:#2E8C74;
  --line:rgba(25,23,20,.10);
  --line-strong:rgba(25,23,20,.18);
  --radius-card:18px;
  --radius-img:20px;
  --shadow-card:0 1px 2px rgba(20,18,15,.04), 0 18px 40px -24px rgba(20,18,15,.16);
  --shadow-lift:0 2px 4px rgba(20,18,15,.05), 0 26px 52px -26px rgba(20,18,15,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,243,237,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -22px rgba(20,18,15,.35);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:26px;height:26px;display:block}
.logo-mark svg{width:26px;height:26px;display:block}
.logo-text{font-weight:800;font-size:17px;letter-spacing:-.02em;line-height:1;white-space:nowrap}
.logo-text .thin{font-weight:500;color:var(--ink-3);margin-left:2px;font-size:15px}

.main-nav{display:none;align-items:center;gap:26px}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;
  background:var(--brand);transition:width .34s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{width:100%}

.header-cta{display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1;
  padding:15px 28px;cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(218,75,34,.75)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(185,58,22,.7)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -12px rgba(185,58,22,.6)}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-ghost:hover{background:rgba(20,69,59,.08)}
.btn-light{background:#F6F3ED;color:var(--ink)}
.btn-light:hover{background:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--accent);border-bottom:1px solid transparent}
.link-arrow span{transition:transform .28s var(--ease)}
.link-arrow:hover{color:var(--accent-2)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- breadcrumb + hero ---------- */
.crumb{padding:26px 0 0;font-size:13px;letter-spacing:.04em;color:var(--ink-3)}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--accent-2)}
.crumb .sep{margin:0 8px;color:var(--line-strong)}
.crumb .current{color:var(--ink)}

.page-hero{padding:34px 0 0}
.hero-grid{display:grid;gap:32px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.15fr .85fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(20,69,59,.08);color:var(--accent);
  border-radius:999px;padding:7px 14px;font-size:12.5px;font-weight:600;letter-spacing:.06em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block}
.page-hero h1{
  font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.1;
  margin:20px 0 16px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px}
.hero-figure{position:relative}
.hero-figure img{width:100%;border-radius:var(--radius-img);aspect-ratio:16/11;object-fit:cover;border:1px solid var(--line)}
.hero-figure::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-img);
  background:linear-gradient(160deg,rgba(15,20,19,.10),rgba(15,20,19,.32));pointer-events:none;
}
.hero-note{
  position:absolute;left:-14px;bottom:20px;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;
  box-shadow:var(--shadow-card);max-width:230px;
}
@media(max-width:520px){.hero-note{left:10px;bottom:12px;padding:12px 14px;max-width:200px}}
.hero-note strong{display:block;font-size:14px;margin-bottom:4px}
.hero-note span{font-size:12.5px;color:var(--ink-3);line-height:1.6;display:block}

.metric-strip{
  margin-top:38px;border-top:1px solid var(--line);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:20px 0;
}
.metric{flex:1 1 140px;padding-right:20px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:24px;font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.2}
.metric span{font-size:13px;color:var(--ink-3);letter-spacing:.04em}

/* ---------- sections ---------- */
section.block{padding:72px 0 0}
@media(min-width:1024px){section.block{padding:104px 0 0}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px}
.sec-title{font-size:clamp(1.55rem,3vw,2.3rem);font-weight:700;display:flex;align-items:center;gap:14px}
.sec-title.tl::before{
  content:"";width:4px;height:1.05em;border-radius:3px;flex:0 0 auto;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
}
.sec-sub{font-size:15px;color:var(--ink-3);max-width:44em;margin-top:10px}

/* ---------- timeline ---------- */
.tl-layout{display:grid;gap:30px}
@media(min-width:1000px){.tl-layout{grid-template-columns:1.35fr .65fr;gap:44px;align-items:start}}
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;background:var(--line-strong)}
.tl-item{position:relative;padding:0 0 30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:6px;width:23px;height:23px;border-radius:50%;
  background:var(--bg);border:1px solid var(--line-strong);
}
.tl-item::after{
  content:attr(data-step);position:absolute;left:-34px;top:6px;width:23px;height:23px;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--ink-3);
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(218,75,34,.22)}
.tl-card h3{font-size:1.12rem;font-weight:600;margin-bottom:8px}
.tl-card p{font-size:15px;color:var(--ink-2)}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:5px 12px;font-size:12px;font-weight:600;letter-spacing:.03em;
}
.badge-green{background:rgba(46,140,116,.12);color:var(--accent)}
.badge-orange{background:rgba(218,75,34,.12);color:var(--brand-600)}
.badge-gray{background:var(--surface-2);color:var(--ink-2)}

.tip-card{
  background:var(--surface-2);border-radius:var(--radius-card);border-left:4px solid var(--brand);
  padding:24px;position:sticky;top:96px;
}
.tip-card h3{font-size:1.1rem;font-weight:700;margin-bottom:10px}
.tip-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px}
.tip-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);padding:9px 0;border-top:1px solid var(--line)}
.tip-list li:first-child{border-top:0}
.tip-list li b{color:var(--accent);font-weight:700;flex:0 0 auto}

/* ---------- table ---------- */
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.table-scroll{overflow-x:auto}
table.cmp{width:100%;border-collapse:collapse;min-width:720px}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;font-size:14.5px;vertical-align:top}
table.cmp thead th{
  background:var(--surface-2);font-weight:700;color:var(--ink);font-size:13.5px;
  letter-spacing:.05em;border-bottom:1px solid var(--line);
}
table.cmp tbody tr{border-bottom:1px solid var(--line);transition:background .25s var(--ease)}
table.cmp tbody tr:last-child{border-bottom:0}
table.cmp tbody tr:hover{background:rgba(237,232,223,.5)}
table.cmp td:first-child{font-weight:600;color:var(--ink)}

/* ---------- split feature ---------- */
.split{display:grid;gap:32px;align-items:center}
@media(min-width:900px){.split{grid-template-columns:.95fr 1.05fr;gap:56px}}
.split img{width:100%;border-radius:var(--radius-img);aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
.checks{margin-top:20px;display:grid;gap:12px}
.checks li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
.checks li i{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;background:rgba(20,69,59,.1);
  color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-style:normal;margin-top:5px;
}

/* ---------- QA grid ---------- */
.qa-grid{display:grid;gap:20px}
@media(min-width:760px){.qa-grid{grid-template-columns:1fr 1fr}}
.qa-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.qa-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(218,75,34,.22)}
.qa-card h3{font-size:1.05rem;font-weight:600;margin-bottom:10px;display:flex;gap:10px}
.qa-card h3 span{color:var(--brand);font-weight:800}
.qa-card p{font-size:14.8px;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:72px;background:var(--bg-deep);color:#F6F3ED;border-radius:24px;
  padding:44px 32px;display:grid;gap:30px;
}
@media(min-width:900px){.cta-band{grid-template-columns:1fr 1fr;align-items:center;padding:56px 48px;gap:48px}}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;margin-bottom:12px}
.cta-band p{color:rgba(246,243,237,.72);font-size:15.5px}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:13px;letter-spacing:.05em;color:rgba(246,243,237,.7)}
.cta-form input{
  width:100%;height:48px;border-radius:12px;border:1px solid rgba(246,243,237,.22);
  background:rgba(246,243,237,.06);padding:0 16px;color:#F6F3ED;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.cta-form input::placeholder{color:rgba(246,243,237,.42)}
.cta-form input:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(46,140,116,.28)}
.form-fine{font-size:12.5px;color:rgba(246,243,237,.5);line-height:1.7}

/* ---------- footer ---------- */
.footer{margin-top:84px;background:var(--bg-deep);color:rgba(246,243,237,.78);padding:64px 0 34px}
.footer-grid{display:grid;gap:36px}
@media(min-width:760px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}}
.footer .logo-text{color:#F6F3ED}
.footer .logo-text .thin{color:rgba(246,243,237,.5)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(246,243,237,.6);margin-top:16px;max-width:30em}
.footer-contact{margin-top:16px;font-size:13.5px;color:rgba(246,243,237,.55);display:grid;gap:4px}
.footer h4{font-size:13px;letter-spacing:.08em;color:rgba(246,243,237,.45);font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14.5px;color:rgba(246,243,237,.76);display:inline-block;transition:color .25s var(--ease),transform .25s var(--ease)}
.footer-links a:hover{color:var(--accent-2);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(246,243,237,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(246,243,237,.45);letter-spacing:.03em;
}

/* ---------- bottom tab ---------- */
.bottom-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
  background:rgba(246,243,237,.97);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 24px -20px rgba(20,18,15,.4);
}
@media(max-width:899px){
  .bottom-tab{display:grid;grid-template-columns:repeat(5,1fr)}
  body{padding-bottom:80px}
  .main-nav{display:none}
}
.tab-item{
  height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;letter-spacing:.04em;color:var(--ink-3);position:relative;
  transition:color .25s var(--ease);
}
.tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand)}
.tab-item.is-active::after{
  content:"";position:absolute;top:7px;width:5px;height:5px;border-radius:50%;background:var(--brand);
}
@media(min-width:900px){
  .main-nav{display:flex}
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .64s var(--ease),transform .64s var(--ease)}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}