/* roulang page: index */
:root{
  --brand:#F2542D;
  --brand-2:#FF8A3D;
  --accent:#0C7C6B;
  --accent-2:#17A88F;
  --highlight:#FFD166;
  --ink:#12211D;
  --ink-2:#4A5A55;
  --line:#E8E2DA;
  --bg:#FBF8F4;
  --bg-2:#F3EEE6;
  --surface:#FFFFFF;
  --grad-brand:linear-gradient(118deg,#F2542D,#FF8A3D 46%,#FFC93C);
  --grad-accent:linear-gradient(120deg,#0C7C6B,#17A88F);
  --grad-shade:linear-gradient(180deg,rgba(18,33,29,0),rgba(18,33,29,.78));
  --r-card:22px;
  --r-phone:26px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,33,29,.05);
  --sh-2:0 10px 30px rgba(18,33,29,.08);
  --sh-3:0 18px 48px rgba(18,33,29,.14);
  --container:1200px;
  --sec:clamp(56px,7vw,96px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 24px}}
@media (min-width:1200px){.wrap{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(251,248,244,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s,border-color .25s;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);border-bottom-color:var(--line)}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:12px}
.nav-side{display:flex;align-items:center;gap:4px;min-width:0}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:600;color:var(--ink-2);
  border-radius:12px;transition:color .2s;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad-brand);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(242,84,45,.28);flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);border:0;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:600;
  transition:transform .22s,box-shadow .22s,filter .22s;box-shadow:0 6px 18px rgba(242,84,45,.22);
  white-space:nowrap;
}
.btn-brand:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px rgba(242,84,45,.28);filter:saturate(1.05)}
.btn-brand:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(242,84,45,.2)}
.btn-brand.btn-sm{padding:9px 18px;font-size:14.5px}
.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);background:var(--surface);
  border:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:600;
  transition:.22s;white-space:nowrap;
}
.btn-soft:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-soft:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.5);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;font-weight:600;transition:.22s;
}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;border-color:#fff}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:13px;border:1px solid var(--line);
  background:var(--surface);padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:3px auto;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.mobile-panel{
  display:none;overflow:hidden;border-top:1px solid var(--line);background:rgba(251,248,244,.98);
}
.mobile-panel.show{display:block;animation:mpIn .2s ease}
@keyframes mpIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.mobile-panel a{
  display:block;line-height:52px;padding:0 20px;font-size:15.5px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--brand)}
.mobile-panel .mp-cta{margin:14px 20px 18px;border:0;color:#fff;text-align:center;border-radius:var(--r-pill);line-height:46px}
@media (max-width:991.98px){
  .nav-side,.nav-side.right{display:none}
  .nav-inner{grid-template-columns:auto 1fr auto;height:64px}
  .nav-brand{display:flex;justify-content:center}
  .nav-toggle{display:grid}
  .nav-quick{display:inline-flex}
  .brand-text{font-size:15.5px}
  .brand-mark{width:30px;height:30px;border-radius:10px}
}
@media (min-width:992px){.nav-quick{display:none!important}}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(28px,4.6vw,60px) 0 clamp(44px,5.5vw,80px);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(118deg,rgba(18,33,29,.045) 0 1px,transparent 1px 30px);
}
.hero::after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  right:-180px;top:-200px;border:1px solid rgba(12,124,107,.12);pointer-events:none;
}
.hero .wrap{position:relative;z-index:2}
.hero-badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:rgba(255,255,255,.16);color:#fff;
  border:1px solid rgba(255,255,255,.3);white-space:nowrap;font-variant-numeric:tabular-nums;
}
.badge-soft{background:rgba(12,124,107,.09);color:var(--accent);border:1px solid rgba(12,124,107,.18)}
.badge-yellow{background:var(--highlight);color:var(--ink);border-color:transparent}
.badge-line{background:var(--surface);color:var(--ink-2);border:1px solid var(--line)}
.hero h1{
  font-size:clamp(30px,5.2vw,46px);font-weight:800;line-height:1.25;letter-spacing:-.01em;
  margin:0 0 18px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16.5px;line-height:1.8;color:var(--ink-2);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-stage{position:relative;display:flex;justify-content:center;align-items:center;min-height:440px}
.phone{
  position:relative;width:268px;aspect-ratio:9/16;border-radius:var(--r-phone);overflow:hidden;
  background-color:#e7e1d8;background-size:cover;background-position:center;
  box-shadow:var(--sh-3);flex:0 0 auto;
}
.phone.main{z-index:2}
.phone.sub{
  position:absolute;width:218px;z-index:1;opacity:.97;
  transform:rotate(-3deg) translate(88px,52px);
}
.phone-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.phone:hover .phone-media{transform:scale(1.03)}
.phone-shade{position:absolute;left:0;right:0;bottom:0;height:64%;background:var(--grad-shade);z-index:1}
.play-btn{
  position:absolute;top:14px;left:14px;z-index:3;width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.92);display:grid;place-items:center;transition:transform .25s;
}
.play-btn::after{
  content:"";border-left:11px solid var(--brand);border-top:7px solid transparent;
  border-bottom:7px solid transparent;margin-left:3px;
}
.phone:hover .play-btn{transform:scale(1.06)}
.dur{
  position:absolute;top:16px;right:14px;z-index:3;background:rgba(18,33,29,.62);color:#fff;
  font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;backdrop-filter:blur(4px);
}
.phone-body{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:18px 16px;color:#fff}
.phone-body h3{
  font-size:15.5px;font-weight:700;line-height:1.45;margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
@media (max-width:991.98px){
  .hero-stage{
    display:flex;justify-content:flex-start;gap:14px;overflow-x:auto;
    scroll-snap-type:x mandatory;padding:8px 2px 20px;min-height:0;
    -ms-overflow-style:none;scrollbar-width:none;
  }
  .hero-stage::-webkit-scrollbar{display:none}
  .phone,.phone.sub{position:static;transform:none;width:68vw;max-width:300px;flex:0 0 auto;scroll-snap-align:center;opacity:1}
}

/* ---------- sections ---------- */
.sec{padding:var(--sec) 0}
.sec-tight{padding:clamp(40px,5vw,68px) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.sec-title{font-size:clamp(24px,3vw,31px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.sec-sub{margin-top:10px;color:var(--ink-2);font-size:15.5px;max-width:660px}
.sec-link{
  color:var(--ink-2);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
  transition:color .2s;white-space:nowrap;
}
.sec-link:hover{color:var(--brand)}
.sec-link svg{transition:transform .22s}
.sec-link:hover svg{transform:translateX(3px)}
.bg-alt{background:var(--bg-2)}

/* ---------- reel strip ---------- */
.strip-wrap{position:relative}
.strip-wrap::before,.strip-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:46px;pointer-events:none;z-index:3;opacity:.9;
}
.strip-wrap::before{left:-6px;background:linear-gradient(90deg,#FBF8F4,rgba(251,248,244,0))}
.strip-wrap::after{right:-6px;background:linear-gradient(270deg,#FBF8F4,rgba(251,248,244,0))}
.bg-alt .strip-wrap::before{background:linear-gradient(90deg,#F3EEE6,rgba(243,238,230,0))}
.bg-alt .strip-wrap::after{background:linear-gradient(270deg,#F3EEE6,rgba(243,238,230,0))}
.reel-strip{
  display:flex;gap:16px;overflow-x:auto;padding:16px 4px 30px;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.reel-strip::-webkit-scrollbar{display:none}
.reel{flex:0 0 auto;width:206px;scroll-snap-align:start}
.reel:nth-child(2n){transform:translateY(18px)}
.reel .phone{width:100%;border-radius:24px}
.reel .phone-body h3{font-size:14.5px}
@media (max-width:767.98px){
  .reel{width:62vw;max-width:230px}
  .reel:nth-child(2n){transform:translateY(12px)}
  .reel-strip{padding-bottom:34px}
}

/* ---------- pick list ---------- */
.pick-grid{display:grid;grid-template-columns:1.38fr 1fr;gap:24px;align-items:start}
.pick-list{display:flex;flex-direction:column;gap:12px}
.pick-item{
  display:grid;grid-template-columns:46px 96px 1fr;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:14px 20px;box-shadow:var(--sh-1);transition:.25s;
}
.pick-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(242,84,45,.14)}
.pick-num{
  width:46px;height:46px;border-radius:50%;background:var(--highlight);color:var(--ink);
  display:grid;place-items:center;font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;
}
.pick-thumb{width:96px;height:96px;border-radius:16px;overflow:hidden;background:#efe9e0}
.pick-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.pick-item:hover .pick-thumb img{transform:scale(1.05)}
.pick-text h3{font-size:17px;font-weight:700;line-height:1.45;margin-bottom:6px}
.pick-text p{font-size:14.5px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-meta{margin-top:8px;display:flex;gap:8px;flex-wrap:wrap}
.pick-cta{
  position:relative;overflow:hidden;background:var(--grad-brand);border-radius:24px;
  padding:32px 28px;color:#fff;box-shadow:var(--sh-2);position:sticky;top:96px;
}
.pick-cta::after{
  content:"";position:absolute;width:240px;height:240px;border-radius:50%;
  right:-90px;bottom:-110px;background:rgba(255,255,255,.14);
}
.pick-cta h3{font-size:22px;font-weight:800;line-height:1.4;margin-bottom:12px;position:relative;z-index:2}
.pick-cta p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.92);margin-bottom:22px;position:relative;z-index:2}
.pick-cta .cta-list{margin-bottom:24px;position:relative;z-index:2;display:flex;flex-direction:column;gap:10px}
.pick-cta .cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.94)}
.pick-cta .cta-list li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--highlight);
  margin-top:9px;flex:0 0 auto;
}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);background:#fff;color:var(--ink);
  font-size:15px;font-weight:700;transition:.22s;position:relative;z-index:2;
}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(18,33,29,.2);color:var(--ink)}
@media (max-width:991.98px){
  .pick-grid{grid-template-columns:1fr}
  .pick-cta{position:static;order:-1}
}
@media (max-width:575.98px){
  .pick-item{grid-template-columns:38px 68px 1fr;gap:12px;padding:12px 14px}
  .pick-num{width:38px;height:38px;font-size:14px}
  .pick-thumb{width:68px;height:68px;border-radius:12px}
  .pick-text h3{font-size:15px}
  .pick-text p{display:none}
}

/* ---------- news ---------- */
.chip-row{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  padding:7px 15px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);
  color:var(--ink-2);font-size:13.5px;font-weight:600;transition:.2s;white-space:nowrap;
}
.chip.is-on{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:.25s;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(242,84,45,.14)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:#efe9e0}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{font-size:18px;font-weight:700;line-height:1.5;margin:12px 0 10px}
.news-body h3 a{transition:color .2s}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{
  font-size:14.8px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--ink-2);font-size:13.5px}
.news-grid > .news-card:first-child{grid-column:1 / -1;flex-direction:row}
.news-grid > .news-card:first-child .news-cover{flex:0 0 52%;aspect-ratio:auto;min-height:250px}
.news-grid > .news-card:first-child .news-body{padding:28px 30px;justify-content:center}
.news-grid > .news-card:first-child h3{font-size:22px}
.empty-state{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 20px;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--r-card);text-align:center;color:var(--ink-2);
}
.empty-icon{
  width:56px;height:56px;border-radius:18px;background:var(--bg-2);display:grid;place-items:center;
  color:var(--accent);
}
@media (max-width:767.98px){
  .news-grid{grid-template-columns:1fr;gap:18px}
  .news-grid > .news-card:first-child{flex-direction:column;grid-column:auto}
  .news-grid > .news-card:first-child .news-cover{flex:none;aspect-ratio:16/9;min-height:0}
  .news-grid > .news-card:first-child .news-body{padding:20px 22px 22px}
  .news-grid > .news-card:first-child h3{font-size:18.5px}
}

/* ---------- voices ---------- */
.voice-strip{
  display:flex;gap:16px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.voice-strip::-webkit-scrollbar{display:none}
.voice-card{
  flex:0 0 322px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:20px;padding:20px 22px;box-shadow:var(--sh-1);transition:.25s;
}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--grad-accent);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.voice-name{font-size:15px;font-weight:700}
.voice-meta{font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.stars{color:var(--highlight);font-size:14px;letter-spacing:2px}
.voice-card p{font-size:14.8px;line-height:1.78;color:var(--ink-2)}
.voice-tag{margin-top:14px}
@media (max-width:575.98px){.voice-card{flex:0 0 82vw}}

/* ---------- faq ---------- */
.faq-acc{
  --bs-accordion-border-width:0;
  --bs-accordion-bg:transparent;
  --bs-accordion-border-radius:18px;
  --bs-accordion-inner-border-radius:18px;
  --bs-accordion-btn-color:var(--ink);
  --bs-accordion-btn-bg:var(--surface);
  --bs-accordion-active-color:var(--brand);
  --bs-accordion-active-bg:var(--surface);
  --bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(12,124,107,.15);
  --bs-accordion-body-padding-x:22px;
  --bs-accordion-body-padding-y:16px;
  max-width:920px;
}
.faq-acc .accordion-item{border:0;background:transparent;margin-bottom:12px;border-radius:18px;overflow:hidden}
.faq-acc .accordion-button{
  gap:14px;padding:18px 22px;font-size:17.5px;font-weight:600;line-height:1.5;
  border:1px solid var(--line);border-radius:18px!important;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button:not(.collapsed){box-shadow:var(--sh-2);border-color:rgba(242,84,45,.18)}
.faq-acc .accordion-button:focus{z-index:2}
.faq-acc .faq-index{
  width:28px;height:28px;border-radius:50%;background:var(--bg-2);color:var(--accent);
  display:grid;place-items:center;font-size:13.5px;font-weight:800;flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}
.faq-acc .accordion-button:not(.collapsed) .faq-index{background:var(--highlight);color:var(--ink)}
.faq-acc .accordion-button::after{
  content:"";margin-left:auto;flex:0 0 18px;width:18px;height:18px;
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:14px 2px,2px 14px;background-position:center,center;background-repeat:no-repeat;
  transition:transform .25s,background-size .25s;border-radius:2px;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);background-size:14px 2px,0 0;
}
.faq-acc .accordion-body{
  padding:14px 22px 22px 64px;font-size:15.2px;line-height:1.85;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-top:0;
  border-radius:0 0 18px 18px;margin-top:-18px;padding-top:24px;
}
@media (max-width:575.98px){
  .faq-acc .accordion-button{font-size:16px;padding:16px 18px;gap:10px}
  .faq-acc .accordion-body{padding:14px 18px 20px 52px}
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;color:#fff;
  background:linear-gradient(120deg,#12211D 0%,#0C7C6B 100%);
  padding:clamp(32px,5vw,52px);display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);right:-120px;top:-140px;
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.35;margin-bottom:10px;position:relative;z-index:2}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.86);max-width:560px;position:relative;z-index:2}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9D4D0;padding:clamp(46px,6vw,72px) 0 0;margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:32px}
.site-footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.site-footer p{font-size:14.5px;line-height:1.8;color:#C9D4D0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{font-size:14.5px;color:#C9D4D0;transition:.2s}
.site-footer ul a:hover{color:var(--highlight)}
.footer-note{
  margin-top:14px;padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);font-size:13.2px;line-height:1.7;color:#A9B9B4;
}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13.4px;color:#93A5A0;
}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:24px}}

/* ---------- floating bar ---------- */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1060;
  background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  transform:translateY(130%);transition:transform .35s ease;box-shadow:0 -8px 28px rgba(18,33,29,.08);
}
.float-bar.show{transform:translateY(0)}
.float-info{min-width:0}
.float-info strong{display:block;font-size:14.5px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.float-info span{font-size:12.5px;color:var(--ink-2)}
.float-bar .btn-brand{padding:10px 20px;font-size:14.5px}
@media (max-width:991.98px){body{padding-bottom:74px}}
@media (min-width:992px){
  .float-bar{
    left:auto;right:26px;bottom:26px;border:0;border-radius:26px;padding:12px 18px;
    flex-direction:column;align-items:flex-start;gap:0;max-width:264px;
    transform:translateY(160%);box-shadow:var(--sh-3);
  }
  .float-bar .float-info{max-height:0;opacity:0;overflow:hidden;transition:max-height .3s,opacity .3s,margin .3s}
  .float-bar:hover .float-info,.float-bar:focus-within .float-info{max-height:80px;opacity:1;margin-bottom:10px}
}

/* roulang page: article */
:root{
  --brand:#F2542D;
  --brand-2:#FF8A3D;
  --accent:#0C7C6B;
  --accent-2:#17A88F;
  --highlight:#FFD166;
  --ink:#12211D;
  --ink-2:#4A5A55;
  --line:#E8E2DA;
  --bg:#FBF8F4;
  --bg-2:#F3EEE6;
  --surface:#FFFFFF;
  --grad-main:linear-gradient(118deg,#F2542D 0%,#FF8A3D 46%,#FFC93C 100%);
  --grad-accent:linear-gradient(120deg,#0C7C6B 0%,#17A88F 100%);
  --grad-mask:linear-gradient(180deg,rgba(18,33,29,0) 0%,rgba(18,33,29,.78) 100%);
  --sh-1:0 1px 2px rgba(18,33,29,.05);
  --sh-2:0 10px 30px rgba(18,33,29,.08);
  --sh-3:0 18px 48px rgba(18,33,29,.14);
  --r-card:22px;
  --r-clip:26px;
  --r-btn:999px;
  --r-input:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(251,248,244,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);border-bottom-color:var(--line);}
.nav-shell{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:flex;
  align-items:center;
  gap:18px;
  position:relative;
}
.nav-side{display:flex;align-items:center;gap:24px;flex:1;min-width:0;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  padding:6px 2px;
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--grad-main);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--brand);}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.brand{
  position:absolute;left:50%;top:50%;
  transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:10px;
  white-space:nowrap;
}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  background:var(--grad-main);
  color:#fff;font-size:17px;font-weight:800;
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(242,84,45,.28);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 20px;border-radius:var(--r-btn);
  background:var(--grad-main);
  color:#fff;font-size:14px;font-weight:600;
  white-space:nowrap;
  box-shadow:0 6px 18px rgba(242,84,45,.22);
  transition:transform .2s ease,box-shadow .25s ease,filter .2s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(242,84,45,.3);color:#fff;}
.nav-cta:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(242,84,45,.22);}
.nav-icon{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);border:1px solid var(--line);background:var(--surface);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-icon:hover{color:var(--brand);border-color:rgba(242,84,45,.4);transform:translateY(-1px);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:14px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  transition:border-color .2s ease,color .2s ease;
}
.menu-toggle:hover{color:var(--brand);border-color:rgba(242,84,45,.4);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(251,248,244,.98);
  box-shadow:var(--sh-2);
  animation:panelIn .2s ease both;
}
.mobile-panel.open{display:block;}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.mobile-panel .wrap{padding-top:8px;padding-bottom:16px;}
.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;
  font-size:15.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
  transition:color .2s ease,padding-left .2s ease;
}
.m-link:last-child{border-bottom:0;}
.m-link:hover,.m-link:focus-visible{color:var(--brand);padding-left:10px;}

/* ---------- article head ---------- */
.article-head{
  position:relative;
  overflow:hidden;
  background:var(--bg-2);
  padding:clamp(34px,4.6vw,62px) 0 clamp(26px,3.4vw,42px);
  border-bottom:1px solid var(--line);
}
.article-head::before{
  content:"";
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  opacity:.06;
  pointer-events:none;
}
.article-head::after{
  content:"";
  position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:var(--grad-accent);opacity:.07;pointer-events:none;
}
.article-head .wrap{position:relative;z-index:1;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-2);margin-bottom:18px;
}
.crumbs a{color:var(--ink-2);transition:color .2s ease;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C6BFB4;}
.crumbs .current{color:var(--ink);font-weight:600;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:var(--grad-main);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.01em;
}
.article-title{
  font-size:clamp(28px,4.4vw,42px);
  font-weight:800;line-height:1.25;letter-spacing:-.01em;
  margin:16px 0 20px;
  max-width:920px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13.5px;color:var(--ink-2);
  font-variant-numeric:tabular-nums;
  padding-top:16px;border-top:1px solid var(--line);
  max-width:920px;
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);display:inline-block;}

/* ---------- article body ---------- */
.article-wrap{padding:clamp(34px,4.6vw,60px) 0 0;}
.article-body{
  max-width:800px;margin:0 auto;
  font-size:17px;line-height:1.85;color:var(--ink);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:23px;font-weight:700;line-height:1.4;
  margin:40px 0 16px;padding-left:16px;
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:var(--grad-main);
}
.article-body h3{font-size:18px;font-weight:700;line-height:1.5;margin:28px 0 12px;}
.article-body h4{font-size:16.5px;font-weight:700;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;line-height:1.8;}
.article-body li::marker{color:var(--accent);}
.article-body blockquote{
  background:var(--bg-2);
  border-left:4px solid var(--accent);
  border-radius:0 16px 16px 0;
  padding:18px 22px;margin:24px 0;
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:24px auto 8px;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-2);margin-top:6px;}
.article-body a{color:var(--accent);border-bottom:1px dashed var(--accent);transition:color .2s ease,border-color .2s ease;}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.article-body code{background:var(--bg-2);border-radius:6px;padding:2px 6px;font-size:15px;}
.article-body pre{background:var(--ink);color:#E6EFEC;border-radius:16px;padding:18px 20px;overflow-x:auto;font-size:14.5px;line-height:1.7;}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;border:1px solid var(--line);
  border-radius:12px;margin:24px 0;font-size:15.5px;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--bg-2);font-weight:600;white-space:nowrap;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  max-width:620px;margin:0 auto;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:clamp(32px,5vw,52px) 24px;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:18px;margin:0 auto 18px;
  background:var(--bg-2);color:var(--accent);
  display:grid;place-items:center;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:22px;}

/* ---------- sections ---------- */
.section{padding:clamp(42px,5.4vw,72px) 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:22px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,3vw,28px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.section-head .sub{font-size:14px;color:var(--ink-2);margin-top:6px;}
.more-link{
  font-size:14px;font-weight:600;color:var(--accent);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .2s ease,gap .2s ease;
}
.more-link:hover{color:var(--brand);gap:10px;}

/* clips */
.clip-track{
  display:flex;gap:16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 2px 20px;
  scrollbar-width:none;
  -ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.clip-track::-webkit-scrollbar{display:none;}
.clip-card{
  position:relative;
  flex:0 0 auto;
  width:214px;
  aspect-ratio:9 / 16;
  border-radius:var(--r-clip);
  overflow:hidden;
  scroll-snap-align:start;
  background:var(--bg-2);
  box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.clip-card:hover,.clip-card:focus-visible{transform:translateY(-4px);box-shadow:var(--sh-2);}
.clip-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.clip-card:hover img{transform:scale(1.04);}
.clip-card .clip-mask{position:absolute;inset:auto 0 0 0;height:62%;background:var(--grad-mask);}
.clip-play{
  position:absolute;top:12px;left:12px;
  width:34px;height:34px;border-radius:50%;
  background:rgba(255,255,255,.92);color:var(--brand);
  display:grid;place-items:center;
  transition:transform .25s ease;
}
.clip-card:hover .clip-play{transform:scale(1.08);}
.clip-dur{
  position:absolute;top:12px;right:12px;
  padding:3px 9px;border-radius:999px;
  background:rgba(18,33,29,.62);color:#fff;
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.clip-info{position:absolute;left:0;right:0;bottom:0;padding:14px 14px 16px;color:#fff;}
.clip-info h3{
  font-size:14.5px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:8px;
}
.clip-badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  background:rgba(255,209,102,.92);color:var(--ink);
  font-size:11.5px;font-weight:700;
}

/* tags */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;max-width:800px;margin:0 auto;padding-top:34px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 15px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,background .2s ease;
}
.tag:hover{color:var(--accent);border-color:var(--accent);background:#fff;transform:translateY(-1px);}

/* rec cards */
.rec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.info-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.info-card:hover,.info-card:focus-visible{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(242,84,45,.32);
}
.info-card .thumb{position:relative;aspect-ratio:16 / 10;overflow:hidden;background:var(--bg-2);}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.info-card:hover .thumb img{transform:scale(1.04);}
.info-card .thumb .badge-cat{position:absolute;top:14px;left:14px;font-size:12px;padding:4px 12px;}
.info-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card .body h3{
  font-size:17.5px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card .body p{
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card .body .time{
  margin-top:auto;padding-top:10px;
  font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:7px;
}

/* buttons */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);
  background:var(--grad-main);color:#fff;
  font-size:15px;font-weight:600;
  box-shadow:0 8px 22px rgba(242,84,45,.24);
  transition:transform .2s ease,box-shadow .25s ease;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(242,84,45,.3);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 5px 14px rgba(242,84,45,.24);}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink);
  border:1px solid var(--line);
  font-size:15px;font-weight:600;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);
  background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.42);
  font-size:15px;font-weight:600;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.75);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}

/* back row */
.back-row{display:flex;justify-content:center;padding:36px 0 0;}

/* cta band */
.cta-band{
  margin-top:clamp(48px,6vw,84px);
  background:linear-gradient(120deg,#12211D 0%,#0C7C6B 100%);
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-120px;
  width:320px;height:320px;border-radius:50%;
  background:var(--grad-main);opacity:.16;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  padding:clamp(34px,4.6vw,56px) 24px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(21px,2.8vw,27px);font-weight:700;line-height:1.35;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:#C9D4D0;max-width:640px;margin:0;}

/* footer */
.site-footer{background:var(--ink);color:#C9D4D0;padding:clamp(44px,5vw,68px) 0 0;margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:32px;
  padding-bottom:42px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{
  width:34px;height:34px;border-radius:12px;
  background:var(--grad-main);color:#fff;font-size:17px;font-weight:800;
  display:grid;place-items:center;
}
.footer-brand .brand-text{color:#fff;font-size:16.5px;font-weight:800;}
.site-footer p{font-size:14px;line-height:1.8;color:#AEBAB6;}
.site-footer h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.site-footer ul{display:flex;flex-direction:column;gap:11px;}
.site-footer ul a{
  font-size:14px;color:#C9D4D0;
  transition:color .2s ease,padding-left .2s ease;
}
.site-footer ul a:hover,.site-footer ul a:focus-visible{color:#FFC93C;padding-left:6px;}
.footer-note{
  font-size:13px;line-height:1.75;color:#8FA09A;
  margin-top:14px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8FA09A;
}

/* sticky cta */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:95;
  display:none;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 18px calc(12px + env(safe-area-inset-bottom,0px));
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,33,29,.08);
  transform:translateY(110%);
  opacity:0;
  transition:transform .3s ease,opacity .3s ease;
}
.sticky-cta.is-visible{transform:translateY(0);opacity:1;}
.sticky-info{display:flex;flex-direction:column;line-height:1.35;min-width:0;}
.sticky-info strong{font-size:14.5px;font-weight:700;color:var(--ink);}
.sticky-info span{font-size:12.5px;color:var(--ink-2);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px;}
  .footer-grid > div:nth-child(4){grid-column:1 / -1;}
}
@media (max-width:991px){
  .nav-side{display:none;}
  .nav-icon{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-shell{
    display:grid;
    grid-template-columns:44px 1fr auto;
    align-items:center;
    gap:10px;
    height:64px;
    padding:0 18px;
  }
  .brand{position:static;transform:none;justify-content:center;}
  .nav-right{justify-content:flex-end;}
  .wrap{padding:0 18px;}
  .cta-inner{padding-left:18px;padding-right:18px;}
  .clip-card{width:190px;}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:74px;}
  .sticky-cta{display:flex;}
  .brand-text{font-size:15px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;font-size:15px;}
  .nav-cta{padding:8px 15px;font-size:13px;}
  .rec-grid{grid-template-columns:1fr;gap:16px;}
  .clip-card{width:64vw;max-width:240px;}
  .article-body{font-size:16.5px;line-height:1.8;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-title{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .wrap{padding:0 15px;}
  .nav-shell{padding:0 15px;}
  .clip-card{width:70vw;}
  .btn-primary,.btn-secondary,.btn-ghost{width:100%;}
  .cta-inner{flex-direction:column;align-items:stretch;}
  .cta-inner .btn-ghost{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#F2542D;
  --brand-2:#FF8A3D;
  --accent:#0C7C6B;
  --accent-2:#17A88F;
  --highlight:#FFD166;
  --ink:#12211D;
  --ink-2:#4A5A55;
  --line:#E8E2DA;
  --bg:#FBF8F4;
  --bg-2:#F3EEE6;
  --surface:#FFFFFF;
  --grad-main:linear-gradient(118deg,#F2542D,#FF8A3D 46%,#FFC93C);
  --grad-accent:linear-gradient(120deg,#0C7C6B,#17A88F);
  --grad-deep:linear-gradient(180deg,rgba(18,33,29,0),rgba(18,33,29,.78));
  --shadow-1:0 1px 2px rgba(18,33,29,.05);
  --shadow-2:0 10px 30px rgba(18,33,29,.08);
  --shadow-3:0 18px 48px rgba(18,33,29,.14);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:22px;
  --r-xl:26px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:576px){.wrap{padding:0 24px;}}
@media (min-width:1200px){.wrap{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(251,248,244,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);border-bottom-color:var(--line);}
.nav-shell{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:72px;
}
.nav-side{display:flex;align-items:center;gap:6px;flex:1 1 0;min-width:0;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--grad-main);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 6px 16px rgba(242,84,45,.26);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.nav-cta{margin-left:10px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:8px 0 16px;
}
.mobile-panel.is-open{display:block;animation:panelIn .2s ease;}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.mobile-panel a{
  display:block;line-height:52px;padding:0 24px;
  font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-of-type{border-bottom:0;}
.mobile-panel a.active{color:var(--brand);}
.mobile-panel .panel-cta{margin:12px 24px 0;}
.mobile-panel .panel-cta .btn{width:100%;justify-content:center;}
@media (max-width:991.98px){
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .brand{position:absolute;left:50%;transform:translateX(-50%);}
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;font-size:15px;border-radius:10px;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-brand{
  background:var(--grad-main);color:#fff;
  box-shadow:0 8px 20px rgba(242,84,45,.24);
}
.btn-brand:hover{transform:translateY(-1px);color:#fff;box-shadow:0 16px 30px rgba(242,84,45,.30);}
.btn-brand:active{transform:translateY(0);box-shadow:0 6px 14px rgba(242,84,45,.24);}
.btn-outline{
  background:var(--surface);border-color:var(--line);color:var(--ink);
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.6);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.5;
  background:var(--bg-2);color:var(--ink-2);
  white-space:nowrap;
}
.badge-accent{background:rgba(12,124,107,.10);color:var(--accent);}
.badge-brand{background:rgba(242,84,45,.10);color:var(--brand);}
.badge-strong{background:var(--highlight);color:var(--ink);}
.badge-glass{
  background:rgba(255,255,255,.16);color:#fff;
  border:1px solid rgba(255,255,255,.34);
  backdrop-filter:blur(4px);
}

/* ---------- sections ---------- */
.section{padding:clamp(56px,7vw,96px) 0;}
.section-tight{padding-top:clamp(28px,4vw,48px);}
.section-head{max-width:720px;margin-bottom:clamp(24px,3vw,40px);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-accent);}
h1{font-size:clamp(30px,5.2vw,46px);font-weight:800;line-height:1.25;letter-spacing:-.01em;}
h2{font-size:clamp(26px,3.4vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
h3{font-size:clamp(18px,2vw,22px);font-weight:700;line-height:1.4;}
.section-sub{margin-top:12px;font-size:16px;color:var(--ink-2);line-height:1.8;}
.section-alt{background:var(--bg-2);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  border-radius:24px;
  min-height:clamp(240px,32vw,360px);
  display:flex;align-items:flex-end;
  padding:clamp(26px,4vw,44px);
  color:#fff;
  background-image:
    linear-gradient(120deg,rgba(12,124,107,.90),rgba(23,168,143,.66) 52%,rgba(18,33,29,.78)),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-2);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(720px 220px at 88% 8%,rgba(255,209,102,.20),transparent 70%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:720px;}
.cat-hero .eyebrow{color:rgba(255,255,255,.92);}
.cat-hero .eyebrow::before{background:var(--highlight);}
.cat-hero h1{color:#fff;}
.cat-hero-sub{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.92);max-width:640px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-wave{
  position:absolute;right:-40px;bottom:-30px;width:min(520px,60%);
  opacity:.16;z-index:1;pointer-events:none;
}

/* ---------- quick facts ---------- */
.fact-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  margin-top:-28px;
  position:relative;z-index:3;
}
.fact{padding:22px 24px;border-right:1px solid var(--line);}
.fact:last-child{border-right:0;}
.fact-num{
  font-size:clamp(22px,2.6vw,28px);font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.fact-label{margin-top:6px;font-size:13px;color:var(--ink-2);line-height:1.6;}
@media (max-width:767.98px){
  .fact-bar{grid-template-columns:repeat(2,1fr);}
  .fact:nth-child(2n){border-right:0;}
  .fact:nth-child(-n+2){border-bottom:1px solid var(--line);}
}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:1fr;gap:clamp(20px,3vw,36px);}
@media (min-width:992px){.intro-grid{grid-template-columns:1.15fr .85fr;align-items:start;}}
.intro-text p{font-size:17px;line-height:1.85;color:var(--ink-2);}
.intro-text p + p{margin-top:16px;}
.intro-text strong{color:var(--ink);}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0;}
.check-dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:rgba(12,124,107,.10);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.check-list h4{font-size:16px;font-weight:700;line-height:1.5;}
.check-list p{font-size:14px;color:var(--ink-2);line-height:1.7;margin-top:4px;}

/* ---------- cards ---------- */
.card-base{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card-base:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(242,84,45,.24);}
.card-media{position:relative;overflow:hidden;background:var(--bg-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-base:hover .card-media img{transform:scale(1.03);}
.card-media .badge-pill{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--ink);}
.card-body{padding:clamp(18px,2.2vw,26px);}
.card-title{font-size:clamp(17px,1.9vw,20px);font-weight:700;line-height:1.45;}
.card-text{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px;}
.card-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:700;color:var(--accent);
  transition:color .2s ease,gap .2s ease;
}
.card-link:hover{color:var(--brand);gap:10px;}

.feature-card .card-media{aspect-ratio:16/9;}
.mini-card{display:flex;flex-direction:column;}
.mini-card .card-media{aspect-ratio:16/10;}
.mini-card .card-title{font-size:17px;}
@media (max-width:991.98px){
  .mini-stack .mini-card + .mini-card{margin-top:20px;}
}

/* ---------- steps ---------- */
.step-list{counter-reset:step;display:grid;gap:14px;}
.step-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  padding:22px 24px 22px 76px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step-item::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;left:22px;top:22px;
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--highlight);color:var(--ink);
  font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:18px;}
.step-item p{margin-top:8px;font-size:15px;line-height:1.75;color:var(--ink-2);}

.tip-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  position:sticky;top:96px;
}
.tip-card .tip-head{
  padding:20px 24px;
  background:var(--grad-accent);
  color:#fff;
}
.tip-card .tip-head h3{font-size:18px;color:#fff;}
.tip-card .tip-head p{margin-top:6px;font-size:13px;color:rgba(255,255,255,.86);line-height:1.6;}
.tip-card ul{padding:8px 24px 20px;}
.tip-card li{
  display:flex;gap:10px;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14px;line-height:1.7;color:var(--ink-2);
}
.tip-card li:last-child{border-bottom:0;}
.tip-card li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:var(--accent-2);margin-top:9px;
}
.tip-card .tip-img{aspect-ratio:16/10;overflow:hidden;}
.tip-card .tip-img img{width:100%;height:100%;object-fit:cover;}
@media (max-width:991.98px){.tip-card{position:static;margin-top:24px;}}

/* ---------- safe strip ---------- */
.safe-strip{
  background:var(--ink);
  border-radius:var(--r-xl);
  padding:clamp(26px,4vw,44px);
  color:#C9D4D0;
  position:relative;overflow:hidden;
}
.safe-strip::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,209,102,.20),transparent 68%);
}
.safe-grid{position:relative;z-index:2;display:grid;gap:24px;}
@media (min-width:768px){.safe-grid{grid-template-columns:repeat(3,1fr);}}
.safe-item h4{color:#fff;font-size:17px;font-weight:700;}
.safe-item p{margin-top:8px;font-size:14px;line-height:1.75;color:#C9D4D0;}
.safe-item .badge-pill{background:rgba(255,255,255,.12);color:#fff;margin-bottom:12px;}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  margin-bottom:12px;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item.is-open{border-color:rgba(12,124,107,.32);}
.faq-btn{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 22px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-idx{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  background:var(--bg-2);color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.faq-item.is-open .faq-idx{background:var(--highlight);color:var(--ink);}
.faq-q{flex:1 1 auto;}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .3s 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;transition:transform .3s ease,opacity .3s ease;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-panel{padding:0 22px 22px 64px;}
.faq-panel p{font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-panel p + p{margin-top:10px;}
@media (max-width:575.98px){
  .faq-btn{font-size:16px;padding:18px 16px;gap:10px;}
  .faq-panel{padding:0 16px 20px 16px;}
}

/* ---------- cta ---------- */
.cta-band{
  background:var(--ink);
  background-image:linear-gradient(120deg,rgba(18,33,29,.96),rgba(12,124,107,.86));
  border-radius:var(--r-xl);
  padding:clamp(28px,4vw,52px);
  display:flex;flex-wrap:wrap;gap:24px;
  align-items:center;justify-content:space-between;
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,45,.28),transparent 70%);
}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,28px);}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:#C9D4D0;
  padding:clamp(48px,6vw,76px) 0 0;
  margin-top:clamp(56px,7vw,96px);
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;left:0;top:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,209,102,.6),transparent);
}
.footer-grid{
  display:grid;gap:32px;
  grid-template-columns:1fr;
  padding-bottom:clamp(32px,4vw,48px);
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800;}
.site-footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.8;color:#C9D4D0;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{
  font-size:14px;color:#C9D4D0;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.site-footer ul a:hover{color:var(--highlight);border-bottom-color:rgba(255,209,102,.6);}
.footer-note{
  margin-top:16px;font-size:13px;line-height:1.75;
  color:rgba(201,212,208,.72);
  background:rgba(255,255,255,.05);
  border-radius:var(--r-sm);
  padding:12px 14px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;
  align-items:center;justify-content:space-between;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(201,212,208,.78);
}

/* ---------- dock ---------- */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,33,29,.08);
  transform:translateY(120%);
  opacity:0;
  transition:transform .35s ease,opacity .35s ease;
}
.dock.is-visible{transform:translateY(0);opacity:1;}
.dock-info{min-width:0;}
.dock-info strong{display:block;font-size:14px;font-weight:700;color:var(--ink);line-height:1.4;}
.dock-info span{
  display:block;font-size:12px;color:var(--ink-2);line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.dock .btn{flex:0 0 auto;}
@media (max-width:991.98px){
  body{padding-bottom:84px;}
}
@media (min-width:992px){
  .dock{
    left:auto;right:28px;bottom:28px;
    border:1px solid var(--line);
    border-radius:999px;
    padding:10px 12px 10px 22px;
    max-width:340px;
    box-shadow:var(--shadow-3);
  }
  .dock:hover{transform:translateY(-2px);}
  .dock.is-visible{transform:translateY(0);}
  .dock-info span{white-space:normal;}
}

/* roulang page: category2 */
:root{
  --brand:#F2542D;
  --brand-2:#FF8A3D;
  --accent:#0C7C6B;
  --accent-2:#17A88F;
  --highlight:#FFD166;
  --ink:#12211D;
  --ink-2:#4A5A55;
  --line:#E8E2DA;
  --bg:#FBF8F4;
  --bg-2:#F3EEE6;
  --surface:#FFFFFF;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,29,.05);
  --sh-2:0 10px 30px rgba(18,33,29,.08);
  --sh-3:0 18px 48px rgba(18,33,29,.14);
  --grad-brand:linear-gradient(118deg,#F2542D,#FF8A3D 46%,#FFC93C);
  --grad-accent:linear-gradient(120deg,#0C7C6B,#17A88F);
  --grad-ink:linear-gradient(120deg,#12211D,#1C3A33 60%,#0C7C6B);
  --sec-y:clamp(56px,7vw,96px);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(251,248,244,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);border-bottom-color:var(--line);}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink-2);
  padding:6px 2px;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--grad-brand);border-radius:2px;transition:width .25s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:17px;
  box-shadow:0 8px 20px rgba(242,84,45,.28);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  cursor:pointer;transition:.2s;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-cta{display:none;}
.mobile-panel{
  display:none;
  background:rgba(251,248,244,.98);
  border-bottom:1px solid var(--line);
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .28s ease,opacity .22s ease;
}
.mobile-panel.is-open{max-height:420px;opacity:1;}
.mobile-panel a{
  display:block;padding:14px 24px;font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line);color:var(--ink);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.active{color:var(--brand);background:rgba(242,84,45,.05);}
.mobile-panel a.mobile-login{margin:12px 24px 18px;border:0;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;text-align:center;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 26px;border-radius:var(--r-pill);
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .22s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(242,84,45,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.45);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;}

/* ---------- tags / badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;white-space:nowrap;
  max-width:100%;overflow:hidden;text-overflow:ellipsis;
}
.tag-soft{background:rgba(12,124,107,.1);color:var(--accent);}
.tag-warm{background:rgba(242,84,45,.1);color:var(--brand);}
.tag-solid{background:var(--highlight);color:var(--ink);}
.tag-ghost{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.32);}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.num{font-variant-numeric:tabular-nums;}

/* ---------- section basics ---------- */
.section{padding:var(--sec-y) 0;}
.section-tight{padding:clamp(40px,5vw,64px) 0;}
.section.alt{background:var(--bg-2);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  margin-bottom:34px;flex-wrap:wrap;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--accent);
  text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-accent);}
.section-head h2{font-size:clamp(24px,3vw,31px);}
.section-desc{color:var(--ink-2);font-size:15px;max-width:56ch;line-height:1.8;}

/* ---------- hero ---------- */
.cat-hero{padding:28px 0 0;}
.cat-hero-card{
  position:relative;
  min-height:clamp(240px,32vw,360px);
  border-radius:var(--r-lg);
  overflow:hidden;
  background-color:#12211D;
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-2);
  display:flex;align-items:flex-end;
}
.cat-hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(12,124,107,.92),rgba(18,33,29,.72) 58%,rgba(18,33,29,.45)),
             linear-gradient(180deg,rgba(18,33,29,0),rgba(18,33,29,.6));
}
.cat-hero-body{position:relative;z-index:2;padding:clamp(24px,4vw,44px);max-width:760px;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:14px;flex-wrap:wrap;}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.55;}
.crumb .current{color:#fff;font-weight:600;}
.cat-hero h1{font-size:clamp(30px,5.2vw,46px);font-weight:800;line-height:1.25;color:#fff;}
.cat-hero-sub{margin-top:14px;color:rgba(255,255,255,.85);font-size:16px;max-width:56ch;line-height:1.8;}
.cat-hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}

/* ---------- stats strip ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:28px;
}
.stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);transition:.25s;
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(12,124,107,.28);}
.stat-num{font-size:26px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-num small{font-size:14px;font-weight:700;color:var(--accent);margin-left:4px;}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--ink-2);}

/* ---------- split grid ---------- */
.split{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:26px;align-items:start;}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(242,84,45,.26);}
.card-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card:hover .card-img img{transform:scale(1.03);}
.card-img .tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--accent);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;}
.card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink-2);
}
.card-meta .more{font-weight:700;color:var(--accent);}
.card:hover .card-meta .more{color:var(--brand);}

/* ---------- side list ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;position:sticky;top:96px;
}
.side-head{
  padding:20px 22px;background:var(--grad-accent);color:#fff;
}
.side-head h3{font-size:18px;}
.side-head p{font-size:13px;color:rgba(255,255,255,.85);margin-top:6px;}
.side-list{padding:10px 12px 16px;}
.side-item{
  display:flex;gap:12px;align-items:center;
  padding:12px 10px;border-radius:var(--r-sm);
  border-bottom:1px dashed var(--line);transition:background .2s ease,transform .2s ease;
}
.side-item:last-child{border-bottom:0;}
.side-item:hover{background:var(--bg-2);transform:translateX(2px);}
.side-rank{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;
  background:var(--highlight);color:var(--ink);
  display:grid;place-items:center;font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.side-thumb{flex:0 0 54px;width:54px;height:54px;border-radius:14px;overflow:hidden;background:var(--bg-2);}
.side-thumb img{width:100%;height:100%;object-fit:cover;}
.side-text{min-width:0;flex:1;}
.side-text strong{display:block;font-size:14.5px;font-weight:700;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.side-text span{font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums;}
.side-foot{padding:0 22px 22px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:s;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-1);position:relative;transition:.25s;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-num{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
  box-shadow:0 8px 18px rgba(242,84,45,.24);
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- faq ---------- */
.faq-acc{display:flex;flex-direction:column;gap:12px;}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:18px;background:#fff;
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;
  padding:20px 22px;box-shadow:none;gap:12px;align-items:center;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:#fff;}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(12,124,107,.15);border-color:var(--accent);}
.faq-acc .accordion-button::after{
  background-image:none;content:"+";
  width:24px;height:24px;font-size:20px;line-height:1;
  display:grid;place-items:center;color:var(--brand);
  transition:transform .25s ease;flex:0 0 24px;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.faq-num{
  flex:0 0 28px;width:28px;height:28px;border-radius:9px;
  background:var(--highlight);color:var(--ink);
  display:grid;place-items:center;font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.faq-acc .accordion-body{
  padding:0 22px 22px 62px;font-size:15px;line-height:1.8;color:var(--ink-2);
}

/* ---------- cta ---------- */
.cta-band{
  background:var(--grad-ink);color:#fff;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-8%;top:-40%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,168,143,.35),rgba(23,168,143,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:90px;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 2px,transparent 2px 10px);
  opacity:.5;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:clamp(40px,5vw,64px) 0;
}
.cta-inner h2{font-size:clamp(24px,3.2vw,32px);color:#fff;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15.5px;max-width:60ch;line-height:1.8;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9D4D0;padding:clamp(48px,6vw,76px) 0 0;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;font-size:16px;}
.footer-brand .brand-text{color:#fff;font-size:16.5px;}
.site-footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.8;color:#C9D4D0;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{font-size:14px;color:#C9D4D0;}
.site-footer ul a:hover{color:var(--highlight);}
.footer-note{
  margin-top:14px;font-size:12.5px;line-height:1.75;
  color:rgba(201,212,208,.66);
  border-left:2px solid rgba(255,209,102,.55);padding-left:12px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(201,212,208,.72);
}

/* ---------- sticky cta ---------- */
.sticky-cta{
  position:fixed;right:24px;bottom:24px;z-index:1050;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.sticky-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.sticky-inner{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:10px 12px 10px 20px;box-shadow:var(--sh-3);
}
.sticky-info strong{display:block;font-size:13.5px;}
.sticky-info span{font-size:12.5px;color:var(--ink-2);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .wrap{padding:0 20px;}
}
@media (max-width:991px){
  .header-inner{display:flex;justify-content:space-between;}
  .nav-side{display:none;}
  .menu-toggle{display:inline-flex;}
  .mobile-cta{display:inline-flex;}
  .mobile-panel{display:block;}
  .split{grid-template-columns:1fr;}
  .side-card{position:static;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .sticky-cta{right:16px;bottom:16px;}
  .sticky-inner{padding:10px 10px 10px 16px;gap:10px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .section-head{margin-bottom:24px;}
  .cat-hero{padding-top:16px;}
  .faq-acc .accordion-body{padding-left:22px;}
}
@media (max-width:575px){
  .wrap{padding:0 16px;}
  .header-inner{padding:0 16px;}
  .stats{grid-template-columns:1fr 1fr;gap:12px;}
  .stat{padding:16px;}
  .stat-num{font-size:22px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .sticky-cta{left:12px;right:12px;bottom:12px;}
  .sticky-inner{justify-content:space-between;border-radius:18px;}
  body{padding-bottom:78px;}
}