/* roulang page: index */
:root{
  --bg:#F6F5F1;
  --bg-soft:#EDEBE5;
  --bg-ink:#0B1512;
  --primary:#0E9F7E;
  --primary-deep:#07705A;
  --primary-tint:rgba(14,159,126,.06);
  --accent:#D6F26B;
  --text:#141A18;
  --text-2:#55605C;
  --text-3:#8A948F;
  --ink-text:#F2F5F3;
  --ink-text-2:rgba(242,245,243,.68);
  --line:rgba(20,26,24,.10);
  --line-strong:rgba(20,26,24,.18);
  --line-ink:rgba(255,255,255,.12);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.05),0 10px 24px -14px rgba(11,21,18,.14);
  --shadow-2:0 2px 4px rgba(11,21,18,.06),0 18px 40px -18px rgba(11,21,18,.22);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
p + p{margin-top:1.15em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--accent);color:#0B1512}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--soft{background:var(--bg-soft)}
.section--ink{background:var(--bg-ink);color:var(--ink-text)}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(246,245,241,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--text)}
.brand__mark{position:relative;width:24px;height:24px;border-radius:8px;background:var(--primary);flex:none}
.brand__mark::after{content:"";position:absolute;right:-3px;top:-3px;width:9px;height:9px;border-radius:50%;background:var(--accent)}
.brand__text{white-space:nowrap}
.nav__links{display:flex;align-items:center;gap:34px}
.nav__link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--text-2);transition:color 220ms ease}
.nav__link::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--primary);transform:translateX(-50%);transition:width 220ms ease}
.nav__link:hover{color:var(--primary)}
.nav__link:hover::after{width:60%}
.nav__link.is-active{color:var(--text);font-weight:600}
.nav__link.is-active::after{width:60%}
.nav__right{display:flex;align-items:center;gap:14px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-full);color:var(--text-2);transition:background 220ms ease,color 220ms ease}
.icon-btn:hover{background:var(--primary-tint);color:var(--primary)}
.hamburger{display:none;width:42px;height:42px;border-radius:var(--r-sm);align-items:center;justify-content:center;color:var(--text)}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

.drawer{position:fixed;inset:0;z-index:90;background:var(--bg-ink);color:var(--ink-text);display:flex;flex-direction:column;padding:28px 24px 40px;opacity:0;visibility:hidden;transition:opacity 220ms ease,visibility 220ms ease}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;height:46px}
.drawer__brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px}
.drawer__close{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-full);color:var(--ink-text-2);border:1px solid var(--line-ink)}
.drawer__close:hover{color:var(--ink-text)}
.drawer__links{margin-top:44px;display:flex;flex-direction:column;gap:4px}
.drawer__links a{font-size:20px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--line-ink);opacity:0;transform:translateY(8px);transition:opacity 240ms ease,transform 240ms ease,color 200ms ease}
.drawer.is-open .drawer__links a{opacity:1;transform:none}
.drawer__links a:hover{color:var(--accent)}
.drawer.is-open .drawer__links a:nth-child(1){transition-delay:40ms}
.drawer.is-open .drawer__links a:nth-child(2){transition-delay:80ms}
.drawer.is-open .drawer__links a:nth-child(3){transition-delay:120ms}
.drawer.is-open .drawer__links a:nth-child(4){transition-delay:160ms}
.drawer.is-open .drawer__links a:nth-child(5){transition-delay:200ms}
.drawer__foot{margin-top:auto;font-size:13px;color:var(--ink-text-2)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:var(--r-full);font-size:15px;font-weight:600;letter-spacing:.01em;transition:background 220ms ease,color 220ms ease,border-color 220ms ease,transform 160ms ease,box-shadow 160ms ease;white-space:nowrap}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-tint)}
.btn--ghost-ink{background:transparent;border:1px solid var(--line-ink);color:var(--ink-text)}
.btn--ghost-ink:hover{border-color:var(--accent);color:var(--accent)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);border-bottom:1px solid var(--primary);padding-bottom:2px;transition:border-width 160ms ease,color 200ms ease}
.link-more:hover{color:var(--primary-deep);border-bottom-width:2px}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-full);font-size:12.5px;font-weight:600;letter-spacing:.06em;background:rgba(14,159,126,.12);color:var(--primary-deep);border:1px solid rgba(14,159,126,.22)}
.badge--ink{background:rgba(255,255,255,.06);color:var(--accent);border-color:rgba(214,242,107,.35)}
.badge--soft{background:var(--bg-soft);color:var(--text-2);border-color:var(--line)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(72vh,640px);display:flex;align-items:center;background-color:var(--bg-ink);background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,21,18,.86),rgba(11,21,18,.42));}
.hero__inner{position:relative;z-index:2;width:100%;padding:104px 0;max-width:660px;color:var(--ink-text)}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em;font-weight:600;color:var(--accent);border:1px solid rgba(214,242,107,.35);border-radius:var(--r-full);padding:5px 14px}
.hero__eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero h1{margin-top:22px;font-size:46px;line-height:1.22;font-weight:800;letter-spacing:-.02em;color:#fff}
.hero__sub{margin-top:18px;font-size:18px;line-height:1.7;color:var(--ink-text-2);max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero__stats{display:flex;margin-top:46px;padding-top:24px;border-top:1px solid var(--line-ink)}
.hero__stat{flex:1;padding-right:18px}
.hero__stat + .hero__stat{border-left:1px solid var(--line-ink);padding-left:22px}
.hero__stat b{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:-.01em}
.hero__stat span{display:block;margin-top:2px;font-size:13px;color:var(--ink-text-2)}

/* ---------- section heading ---------- */
.sec-head{max-width:760px}
.sec-eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--primary);text-transform:uppercase}
.sec-head h2{margin-top:12px;font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-head p{margin-top:14px;color:var(--text-2);max-width:640px}
.sec-head--ink h2{color:#fff}
.sec-head--ink p{color:var(--ink-text-2)}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}

/* ---------- pain points ---------- */
.split{display:grid;grid-template-columns:1fr 1.35fr;gap:64px;align-items:start}
.pain-list{border-top:1px solid var(--line)}
.pain{display:grid;grid-template-columns:52px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}
.pain__num{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--primary);padding-top:4px}
.pain h3{font-size:19px;font-weight:700;line-height:1.45}
.pain p{margin-top:8px;font-size:16px;color:var(--text-2);max-width:560px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:52px;position:relative}
.step{position:relative;padding-top:26px;border-top:1px solid var(--line)}
.step::before{content:"";position:absolute;top:-4px;left:0;width:8px;height:8px;border-radius:50%;background:var(--primary)}
.step__num{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--text-3)}
.step h3{margin-top:10px;font-size:19px;font-weight:700;line-height:1.4}
.step p{margin-top:10px;font-size:15.5px;color:var(--text-2)}

/* ---------- feature cards (image + text) ---------- */
.feature-list{display:grid;gap:28px;margin-top:56px}
.feature{display:grid;grid-template-columns:40% 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform 160ms ease,box-shadow 220ms ease}
.feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.feature__media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.feature__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.feature:hover .feature__media img{transform:scale(1.03)}
.feature__body{padding:32px 34px;display:flex;flex-direction:column;justify-content:center}
.feature__body h3{font-size:21px;font-weight:700;line-height:1.4}
.feature__body p{margin-top:12px;color:var(--text-2);max-width:560px;font-size:16px}
.feature__meta{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px}

/* ---------- stats band ---------- */
.band{background:var(--bg-ink);color:var(--ink-text);padding:72px 0}
.band__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.band__item{padding:6px 26px;border-left:1px solid var(--line-ink)}
.band__item:first-child{border-left:0;padding-left:0}
.band__item b{display:block;font-size:36px;font-weight:800;letter-spacing:-.02em;color:#fff}
.band__item b em{font-style:normal;color:var(--accent)}
.band__item span{display:block;margin-top:6px;font-size:14px;color:var(--ink-text-2)}
.band__note{margin-top:36px;padding-top:24px;border-top:1px solid var(--line-ink);font-size:14px;color:var(--ink-text-2)}

/* ---------- testimonials ---------- */
.quotes{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px;margin-top:52px;align-items:start}
.quote{background:var(--bg-soft);border-left:3px solid var(--primary);border-radius:0 var(--r-md) var(--r-md) 0;padding:28px 30px}
.quote--lead{background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);box-shadow:var(--shadow-1);padding:38px 36px}
.quote__mark{font-size:30px;line-height:1;color:var(--primary);font-weight:800;font-family:Georgia,serif}
.quote p{margin-top:12px;font-size:16px;color:var(--text)}
.quote--lead p{font-size:18px;line-height:1.8}
.quote__who{margin-top:18px;font-size:13.5px;color:var(--text-2);line-height:1.6}
.quote__who b{display:block;font-size:14.5px;color:var(--text);font-weight:600}

/* ---------- CMS list ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:52px}
.cms-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:28px 26px 22px;display:flex;flex-direction:column;transition:transform 160ms ease,box-shadow 220ms ease,border-color 220ms ease}
.cms-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,159,126,.3)}
.cms-card__top{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.cms-card h3{font-size:19px;font-weight:700;line-height:1.45}
.cms-card h3 a{transition:color 200ms ease}
.cms-card h3 a:hover{color:var(--primary)}
.cms-card__summary{margin-top:12px;font-size:15.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;max-width:560px}
.cms-card__foot{margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.cms-card__foot .link-more{font-size:13.5px}
.empty-state{grid-column:1/-1;border:1px dashed var(--line-strong);border-radius:var(--r-md);padding:52px 24px;text-align:center;background:rgba(255,255,255,.6)}
.empty-state__dot{width:44px;height:44px;margin:0 auto 16px;border-radius:50%;border:1px solid rgba(14,159,126,.35);background:var(--primary-tint);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700}
.empty-state p{color:var(--text-2);font-size:15.5px}
.empty-state .btn{margin-top:20px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-top:44px;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;min-height:56px;padding:16px 0;font-size:19px;font-weight:600;line-height:1.5;color:var(--text);transition:color 200ms ease}
.faq__q:hover{color:var(--primary)}
.faq__sign{flex:none;position:relative;width:16px;height:16px}
.faq__sign::before,.faq__sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform 220ms ease,opacity 220ms ease}
.faq__sign::before{left:0;top:7px;width:16px;height:2px}
.faq__sign::after{left:7px;top:0;width:2px;height:16px}
.faq__item.is-open .faq__sign::after{transform:scaleY(0);opacity:0}
.faq__item.is-open .faq__q{color:var(--primary)}
.faq__a{display:none;padding:0 44px 24px 0;font-size:16px;color:var(--text-2)}
.faq__item.is-open .faq__a{display:block}

/* ---------- CTA ---------- */
.cta{background:var(--bg-ink);color:var(--ink-text);padding:96px 0;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(14,159,126,.35),transparent 65%)}
.cta__grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.cta h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:#fff}
.cta__lead{margin-top:16px;color:var(--ink-text-2);max-width:460px}
.cta__points{margin-top:28px;display:grid;gap:12px}
.cta__points li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-text-2)}
.cta__points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--accent)}
.form{background:rgba(255,255,255,.04);border:1px solid var(--line-ink);border-radius:var(--r-lg);padding:32px}
.form__row{display:grid;gap:8px;margin-bottom:18px}
.form label{font-size:13px;color:var(--ink-text-2)}
.form input,.form textarea{width:100%;height:48px;padding:0 14px;border-radius:10px;border:1px solid var(--line-ink);background:rgba(255,255,255,.04);color:#fff;transition:border-color 200ms ease,box-shadow 200ms ease}
.form textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.form input::placeholder,.form textarea::placeholder{color:rgba(242,245,243,.42)}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,159,126,.18)}
.form .btn{width:100%;margin-top:6px}
.form__hint{margin-top:14px;font-size:13px;color:var(--ink-text-2)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-ink);color:var(--ink-text-2);padding:76px 0 0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;border-top:1px solid var(--line-ink);padding-top:52px}
.footer__brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;color:#fff}
.footer__brand .brand__mark{width:22px;height:22px}
.footer p{margin-top:16px;font-size:14.5px;max-width:340px;line-height:1.8}
.footer__social{display:flex;gap:10px;margin-top:22px}
.footer__social a{width:38px;height:38px;border-radius:var(--r-full);border:1px solid var(--line-ink);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-text-2);transition:color 200ms ease,border-color 200ms ease}
.footer__social a:hover{color:var(--accent);border-color:rgba(214,242,107,.5)}
.footer h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em}
.footer ul{margin-top:18px;display:grid;gap:10px}
.footer ul a{font-size:14.5px;transition:color 200ms ease}
.footer ul a:hover{color:var(--accent)}
.footer__bottom{border-top:1px solid var(--line-ink);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:13px;flex-wrap:wrap}
.footer__bottom a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1120px}
}
@media (max-width:1024px){
  .nav__links{display:none}
  .hamburger{display:inline-flex}
  .hero h1{font-size:38px}
  .split{grid-template-columns:1fr;gap:40px}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px}
  .quotes{grid-template-columns:1fr 1fr}
  .quote--lead{grid-column:1/-1}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .cta__grid{grid-template-columns:1fr;gap:44px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:68px 0}
  .section--tight{padding:56px 0}
  .nav{height:66px}
  .brand{font-size:16px}
  .brand__text{max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .hero{min-height:auto}
  .hero__inner{padding:76px 0 64px}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px}
  .hero__actions{gap:10px}
  .hero__actions .btn{padding:0 20px}
  .hero__stats{flex-direction:column;gap:16px;margin-top:34px}
  .hero__stat{padding:0}
  .hero__stat + .hero__stat{border-left:0;border-top:1px solid var(--line-ink);padding-left:0;padding-top:16px}
  .sec-head h2{font-size:24px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:18px}
  .steps{grid-template-columns:1fr}
  .feature{grid-template-columns:1fr}
  .feature__media{aspect-ratio:16/9}
  .feature__body{padding:24px 22px}
  .band{padding:56px 0}
  .band__grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .band__item:nth-child(3){border-left:0;padding-left:0}
  .band__item b{font-size:28px}
  .quotes{grid-template-columns:1fr}
  .cms-grid{grid-template-columns:1fr}
  .faq__q{font-size:17px}
  .faq__a{padding-right:0}
  .cta{padding:72px 0}
  .cta h2{font-size:24px}
  .form{padding:24px 20px}
  .footer__grid{grid-template-columns:1fr;gap:32px;padding-top:40px}
  .site-footer{padding-top:56px}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .btn{height:44px;padding:0 20px;font-size:14.5px}
  .pain{grid-template-columns:40px 1fr;gap:14px}
  .quote--lead{padding:26px 22px}
  .quote{padding:24px 22px}
  .cms-card{padding:24px 20px 18px}
}

/* roulang page: category1 */
:root{
  --bg:#F6F5F1;
  --bg-soft:#EDEBE5;
  --bg-ink:#0B1512;
  --primary:#0E9F7E;
  --primary-deep:#07705A;
  --accent:#D6F26B;
  --text:#141A18;
  --text-2:#55605C;
  --text-3:#8A948F;
  --text-ink:#F2F5F3;
  --text-ink-2:rgba(242,245,243,.68);
  --line:rgba(20,26,24,.10);
  --line-ink:rgba(255,255,255,.12);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.05),0 10px 24px -14px rgba(11,21,18,.14);
  --shadow-2:0 2px 4px rgba(11,21,18,.06),0 18px 40px -18px rgba(11,21,18,.22);
  --tr:160ms ease;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
@media (min-width:1600px){.container{max-width:1320px;}}

/* ---------- Button / badge ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-full);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
  white-space:nowrap;
}
.btn--sm{height:40px;padding:0 20px;font-size:14px;}
.btn--primary{background:var(--primary);color:#fff;}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(14,159,126,.06);}
.btn--ghost-dark{background:transparent;border-color:rgba(255,255,255,.34);color:#F2F5F3;}
.btn--ghost-dark:hover{border-color:var(--accent);color:var(--accent);background:rgba(214,242,107,.08);}
.btn--link{background:none;border:0;padding:0;height:auto;color:var(--primary);font-size:15px;font-weight:600;border-bottom:1px solid var(--primary);border-radius:0;padding-bottom:1px;}
.btn--link:hover{border-bottom-width:2px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-full);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  border:1px solid rgba(14,159,126,.35);color:var(--primary-deep);
  background:rgba(14,159,126,.08);
}
.badge--accent{background:var(--accent);border-color:var(--accent);color:#101a14;}
.badge--ink{border-color:var(--line-ink);color:var(--text-ink-2);background:transparent;}
.eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--text-3);}

/* ---------- Header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,241,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand__mark{
  width:24px;height:24px;border-radius:7px;flex:none;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  position:relative;display:inline-block;
}
.brand__mark::after{
  content:"";position:absolute;inset:7px;border-radius:50%;
  background:var(--accent);
}
.nav__links{display:flex;align-items:center;gap:36px;}
.nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;transition:color 220ms ease;
}
.nav__link::after{
  content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform var(--tr);
}
.nav__link:hover{color:var(--primary);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--text);font-weight:600;}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__right{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-full);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);border:1px solid transparent;
  transition:color var(--tr),background var(--tr),border-color var(--tr);
}
.icon-btn:hover{color:var(--primary);background:rgba(14,159,126,.08);border-color:rgba(14,159,126,.2);}
.hamburger{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;transition:background var(--tr);}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* Drawer */
.nav-drawer{
  position:fixed;inset:0;z-index:120;background:var(--bg-ink);
  display:flex;flex-direction:column;padding:26px 22px 40px;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform 260ms ease,opacity 220ms ease;
}
.nav-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.nav-drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px;}
.nav-drawer__brand{display:flex;align-items:center;gap:10px;color:var(--text-ink);font-weight:800;font-size:16px;}
.nav-drawer__close{
  width:42px;height:42px;border-radius:var(--r-sm);background:transparent;
  border:1px solid var(--line-ink);color:var(--text-ink);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
}
.nav-drawer__list{display:flex;flex-direction:column;gap:4px;}
.nav-drawer__list a{
  display:block;padding:16px 4px;font-size:20px;font-weight:600;color:var(--text-ink);
  border-bottom:1px solid var(--line-ink);
  opacity:0;transform:translateY(8px);
}
.nav-drawer.is-open .nav-drawer__list a{animation:drawerIn 320ms ease forwards;}
.nav-drawer.is-open .nav-drawer__list li:nth-child(1) a{animation-delay:40ms;}
.nav-drawer.is-open .nav-drawer__list li:nth-child(2) a{animation-delay:80ms;}
.nav-drawer.is-open .nav-drawer__list li:nth-child(3) a{animation-delay:120ms;}
.nav-drawer.is-open .nav-drawer__list li:nth-child(4) a{animation-delay:160ms;}
.nav-drawer.is-open .nav-drawer__list li:nth-child(5) a{animation-delay:200ms;}
@keyframes drawerIn{to{opacity:1;transform:translateY(0);}}
.nav-drawer__cta{margin-top:auto;padding-top:28px;}
.nav-drawer__cta .btn{width:100%;}
body.is-locked{overflow:hidden;}

/* ---------- Page hero ---------- */
.page-hero{position:relative;background:var(--bg-ink);color:var(--text-ink);overflow:hidden;}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(11,21,18,.90),rgba(11,21,18,.52)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.95;
}
.page-hero__inner{position:relative;padding:78px 24px 84px;max-width:1200px;margin:0 auto;}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.04em;color:var(--text-ink-2);margin-bottom:22px;}
.breadcrumb a{color:var(--text-ink-2);transition:color var(--tr);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .is-current{color:var(--text-ink);}
.page-hero h1{font-size:46px;line-height:1.22;font-weight:800;letter-spacing:-.02em;max-width:840px;margin:16px 0 0;}
.page-hero__sub{max-width:620px;margin-top:18px;font-size:18px;line-height:1.8;color:var(--text-ink-2);}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero__meta{
  display:flex;flex-wrap:wrap;gap:0;margin-top:44px;
  border-top:1px solid var(--line-ink);padding-top:22px;max-width:760px;
}
.hero__meta li{flex:1 1 180px;padding-right:28px;}
.hero__meta li + li{border-left:1px solid var(--line-ink);padding-left:28px;}
.hero__meta strong{display:block;font-size:26px;font-weight:800;letter-spacing:-.01em;color:var(--accent);line-height:1.3;}
.hero__meta span{display:block;font-size:13px;color:var(--text-ink-2);margin-top:4px;}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section--soft{background:var(--bg-soft);}
.section--ink{background:var(--bg-ink);color:var(--text-ink);}
.section--tight{padding-top:0;}
.section__head{max-width:760px;margin-bottom:44px;}
.section__head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-top:12px;}
.section__head p{margin-top:14px;color:var(--text-2);font-size:16.5px;}
.section--ink .section__head p{color:var(--text-ink-2);}
.section--ink .eyebrow{color:rgba(214,242,107,.85);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.step{position:relative;padding:34px 26px 8px 0;}
.step + .step{padding-left:26px;border-left:1px solid var(--line);}
.step__num{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--primary);}
.step h3{font-size:21px;font-weight:700;line-height:1.4;margin-top:12px;}
.step p{margin-top:12px;font-size:15.5px;color:var(--text-2);line-height:1.8;max-width:280px;}
.step::before{
  content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(14,159,126,.14);
}
.step + .step::before{left:26px;}

/* ---------- Checklist (ink) ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;margin-top:8px;}
.checklist li{
  display:flex;gap:14px;padding:20px 0;border-bottom:1px solid var(--line-ink);
  font-size:16px;color:var(--text-ink-2);line-height:1.75;
}
.checklist li strong{display:block;color:var(--text-ink);font-size:17px;font-weight:600;margin-bottom:4px;}
.checklist li .dot{
  flex:none;width:22px;height:22px;border-radius:50%;margin-top:5px;
  border:1px solid rgba(214,242,107,.6);position:relative;
}
.checklist li .dot::after{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--accent);}

/* ---------- Cards ---------- */
.cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.h-card{
  display:grid;grid-template-columns:40% 1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.h-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,159,126,.28);}
.h-card__media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-soft);}
.h-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease;}
.h-card:hover .h-card__media img{transform:scale(1.03);}
.h-card__body{padding:26px;display:flex;flex-direction:column;}
.h-card__body h3{font-size:21px;font-weight:700;line-height:1.4;}
.h-card__body p{margin-top:12px;font-size:15.5px;color:var(--text-2);line-height:1.8;}
.h-card__meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.h-card__meta time{font-size:13px;color:var(--text-3);}

.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;}
.note{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px;
  transition:transform var(--tr),box-shadow var(--tr);
}
.note:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);}
.note h3{font-size:19px;font-weight:700;line-height:1.4;margin-top:14px;}
.note p{margin-top:10px;font-size:15.5px;color:var(--text-2);line-height:1.8;}

/* ---------- Bullet list ---------- */
.ticklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 40px;margin-top:32px;}
.ticklist li{display:flex;gap:12px;font-size:16px;color:var(--text-2);line-height:1.8;}
.ticklist li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:11px;border-radius:50%;
  background:var(--primary);
}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-top:12px;}
.faq__item{border-top:1px solid var(--line);}
.faq__q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0;min-height:56px;font-size:19px;font-weight:600;color:var(--text);
  transition:color var(--tr);
}
.faq__q:hover{color:var(--primary);}
.faq__icon{
  flex:none;position:relative;width:16px;height:16px;
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform 220ms ease,opacity 220ms ease;
}
.faq__icon::before{left:0;right:0;top:7px;height:2px;}
.faq__icon::after{top:0;bottom:0;left:7px;width:2px;}
.faq__item.is-open .faq__icon::after{transform:rotate(90deg);opacity:0;}
.faq__a{max-height:0;overflow:hidden;transition:max-height 260ms ease;}
.faq__a p{padding:0 24px 24px 0;font-size:16px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta{background:var(--bg-ink);color:var(--text-ink);padding:96px 0;}
.cta__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.cta p{margin-top:16px;color:var(--text-ink-2);font-size:16.5px;line-height:1.85;max-width:520px;}
.cta__points{margin-top:26px;display:flex;flex-direction:column;gap:10px;}
.cta__points li{display:flex;gap:10px;font-size:15px;color:var(--text-ink-2);}
.cta__points li::before{content:"";flex:none;width:6px;height:6px;margin-top:11px;border-radius:50%;background:var(--accent);}
.form{background:rgba(255,255,255,.04);border:1px solid var(--line-ink);border-radius:var(--r-md);padding:30px;}
.form__row{margin-bottom:18px;}
.form label{display:block;font-size:13px;color:var(--text-ink-2);margin-bottom:8px;}
.form input,.form textarea{
  width:100%;background:#fff;color:var(--text);
  border:1px solid var(--line);border-radius:10px;padding:0 14px;height:48px;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.form textarea{height:auto;padding:12px 14px;min-height:96px;resize:vertical;line-height:1.7;}
.form input:focus,.form textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,159,126,.14);
}
.form input.is-error,.form textarea.is-error{border-color:#C2543F;}
.form__hint{font-size:13px;color:var(--text-ink-2);margin-top:12px;}
.form__error{font-size:13px;color:#F0B4A6;margin-top:6px;display:none;}
.form__error.is-show{display:block;}
.form .btn{width:100%;margin-top:8px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-ink);color:var(--text-ink);padding:80px 0 0;}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  border-top:1px solid var(--line-ink);padding-top:56px;
}
.site-footer h3{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-ink);margin-bottom:18px;}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px;}
.footer p{font-size:14.5px;line-height:1.85;color:var(--text-ink-2);max-width:340px;}
.site-footer ul li{margin-bottom:12px;font-size:14.5px;color:var(--text-ink-2);}
.site-footer ul li a{color:var(--text-ink-2);transition:color var(--tr);}
.site-footer ul li a:hover{color:var(--accent);}
.footer__social{display:flex;gap:12px;margin-top:22px;}
.footer__social a{
  width:36px;height:36px;border-radius:var(--r-full);border:1px solid var(--line-ink);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-ink-2);
  transition:color var(--tr),border-color var(--tr),background var(--tr);
}
.footer__social a:hover{color:var(--accent);border-color:rgba(214,242,107,.5);background:rgba(214,242,107,.06);}
.footer__bottom{
  margin-top:56px;border-top:1px solid var(--line-ink);padding:24px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-ink-2);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav__links{display:none;}
  .nav__right .icon-btn{display:none;}
  .hamburger{display:inline-flex;}
  .section{padding:76px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step{padding:30px 22px 8px 0;}
  .step + .step{padding-left:0;border-left:0;}
  .step:nth-child(odd)::before{left:0;}
  .step:nth-child(even){padding-left:24px;border-left:1px solid var(--line);}
  .step:nth-child(even)::before{left:24px;}
  .step:nth-child(n+3){border-top:1px solid var(--line);margin-top:22px;padding-top:30px;}
  .step:nth-child(n+3)::before{top:25px;}
  .checklist{grid-template-columns:1fr;gap:0;}
  .cards-2{grid-template-columns:1fr;}
  .note-grid{grid-template-columns:1fr 1fr;}
  .cta__grid{grid-template-columns:1fr;gap:36px;}
  .footer__grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .nav{height:66px;}
  .brand{font-size:15.5px;}
  .nav__right .btn--sm{display:none;}
  .page-hero__inner{padding:52px 20px 60px;}
  .page-hero h1{font-size:30px;}
  .page-hero__sub{font-size:16.5px;margin-top:14px;}
  .hero__meta{margin-top:32px;}
  .hero__meta li{flex:1 1 100%;padding:14px 0;border-bottom:1px solid var(--line-ink);}
  .hero__meta li + li{border-left:0;padding-left:0;}
  .hero__meta strong{font-size:22px;}
  .section{padding:56px 0;}
  .section__head{margin-bottom:32px;}
  .section__head h2{font-size:24px;}
  .steps{grid-template-columns:1fr;}
  .step{padding:26px 0 6px;}
  .step:nth-child(even){padding-left:0;border-left:0;}
  .step:nth-child(even)::before{left:0;}
  .step + .step{border-top:1px solid var(--line);margin-top:16px;padding-top:26px;}
  .step + .step::before{top:21px;left:0;}
  .step p{max-width:none;}
  .h-card{grid-template-columns:1fr;}
  .h-card__media{aspect-ratio:16/9;}
  .note-grid{grid-template-columns:1fr;}
  .ticklist{grid-template-columns:1fr;}
  .faq__q{font-size:17px;min-height:52px;}
  .faq__a p{padding-right:0;}
  .cta{padding:64px 0;}
  .cta h2{font-size:24px;}
  .form{padding:22px;}
  .site-footer{padding-top:60px;}
  .footer__grid{grid-template-columns:1fr;gap:32px;padding-top:40px;}
  .footer p{max-width:none;}
  .footer__bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;line-height:1.3;}
  .hero__actions .btn{width:100%;}
  .badge{font-size:12px;}
}

/* roulang page: article */
:root{
  --bg:#F6F5F1;
  --bg-soft:#EDEBE5;
  --bg-ink:#0B1512;
  --primary:#0E9F7E;
  --primary-deep:#07705A;
  --accent:#D6F26B;
  --text:#141A18;
  --text-2:#55605C;
  --text-3:#8A948F;
  --line:rgba(20,26,24,.10);
  --line-dark:rgba(255,255,255,.12);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.05),0 10px 24px -14px rgba(11,21,18,.14);
  --shadow-2:0 2px 4px rgba(11,21,18,.06),0 18px 40px -18px rgba(11,21,18,.22);
  --t-fast:160ms ease;
  --t-color:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.15em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(14,159,126,.18)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--soft{background:var(--bg-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:46px;flex-wrap:wrap}
.section-head h2{font-size:32px;line-height:1.3}
.section-sub{color:var(--text-2);max-width:560px;margin-top:12px;font-size:16.5px}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t-color);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:28px;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text);white-space:nowrap}
.brand__mark{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),#0B7A61);
  box-shadow:0 4px 10px -4px rgba(14,159,126,.75);
}
.brand__mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:var(--accent);opacity:.92}
.nav__links{display:flex;align-items:center;gap:36px}
.nav__link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color var(--t-color);
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--primary);transform:translateX(-50%);transition:width var(--t-fast);
}
.nav__link:hover{color:var(--primary)}
.nav__link:hover::after{width:60%}
.nav__link.is-active{color:var(--text);font-weight:600}
.nav__link.is-active::after{width:60%}
.nav__right{display:flex;align-items:center;gap:14px}
.icon-btn{
  width:38px;height:38px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-full);color:var(--text-2);
  transition:color var(--t-color),border-color var(--t-color),background var(--t-color);
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:rgba(14,159,126,.06)}
.hamburger{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-full);
}
.hamburger span{position:relative;display:block;width:16px;height:1.5px;border-radius:2px;background:var(--text)}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:16px;height:1.5px;border-radius:2px;background:var(--text);
}
.hamburger span::before{top:-5px}
.hamburger span::after{top:5px}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg-ink);color:#F2F5F3;
  padding:26px 24px 40px;display:flex;flex-direction:column;
  transform:translateY(-100%);visibility:hidden;transition:transform 320ms ease,visibility 320ms;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px}
.drawer__brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#F2F5F3}
.drawer__close{
  width:40px;height:40px;border:1px solid var(--line-dark);border-radius:var(--r-full);
  display:flex;align-items:center;justify-content:center;color:#F2F5F3;
}
.drawer__close:hover{border-color:var(--accent);color:var(--accent)}
.drawer__links{display:flex;flex-direction:column;gap:6px}
.drawer__links a{
  font-size:20px;font-weight:600;color:#F2F5F3;padding:14px 0;
  border-bottom:1px solid var(--line-dark);opacity:0;transform:translateY(8px);
}
.drawer.is-open .drawer__links a{animation:fadeUp 320ms ease forwards}
.drawer.is-open .drawer__links a:nth-child(1){animation-delay:40ms}
.drawer.is-open .drawer__links a:nth-child(2){animation-delay:80ms}
.drawer.is-open .drawer__links a:nth-child(3){animation-delay:120ms}
.drawer.is-open .drawer__links a:nth-child(4){animation-delay:160ms}
.drawer.is-open .drawer__links a:nth-child(5){animation-delay:200ms}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
.drawer__foot{margin-top:auto;font-size:14px;color:rgba(242,245,243,.6);line-height:1.8}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-full);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background var(--t-color),color var(--t-color),border-color var(--t-color),transform var(--t-fast),box-shadow var(--t-fast);
}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(14,159,126,.06)}
.btn--light{background:#fff;color:var(--text)}
.btn--light:hover{background:var(--accent);transform:translateY(-1px)}
.btn--outline-light{background:transparent;border:1px solid var(--line-dark);color:#F2F5F3}
.btn--outline-light:hover{border-color:var(--accent);color:var(--accent)}
.btn--sm{height:38px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{
  font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(14,159,126,.4);padding-bottom:2px;transition:border-color var(--t-color)
}
.link-more:hover{border-color:var(--primary)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary)}
.link-arrow svg{transition:transform var(--t-fast)}
.link-arrow:hover svg{transform:translateX(4px)}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-full);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  background:rgba(14,159,126,.12);color:var(--primary-deep);
  border:1px solid rgba(14,159,126,.24);
}
.badge--accent{background:var(--accent);color:#1B2410;border-color:rgba(0,0,0,.06)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-full);
  border:1px solid var(--line);font-size:14px;color:var(--text-2);background:#fff;
  transition:color var(--t-color),border-color var(--t-color)
}
.tag:hover{color:var(--primary);border-color:var(--primary)}

/* 文章头部 */
.post-hero{
  position:relative;overflow:hidden;color:#F2F5F3;
  background:var(--bg-ink) url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  padding:52px 0 54px;
}
.post-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,21,18,.92),rgba(11,21,18,.58) 65%,rgba(11,21,18,.42));
}
.post-hero .container{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;letter-spacing:.04em;color:rgba(242,245,243,.6);margin-bottom:26px}
.crumbs a{color:rgba(242,245,243,.72);transition:color var(--t-color)}
.crumbs a:hover{color:var(--accent)}
.crumbs__current{color:#F2F5F3}
.post-hero .badge{background:rgba(214,242,107,.14);color:var(--accent);border-color:rgba(214,242,107,.32)}
.post-title{
  font-size:42px;line-height:1.24;font-weight:800;letter-spacing:-.02em;
  color:#F2F5F3;max-width:860px;margin:18px 0 22px;
}
.post-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:14px;color:rgba(242,245,243,.68);
  padding-top:20px;border-top:1px solid var(--line-dark);max-width:760px;
}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(242,245,243,.4)}

/* 文章布局 */
.post-wrap{padding:64px 0 88px}
.post-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:56px;align-items:start}
.post-aside{display:none}
@media (min-width:1200px){
  .post-layout{grid-template-columns:minmax(0,760px) 268px;justify-content:space-between}
  .post-aside{display:block;position:sticky;top:98px}
}
.toc{border-left:1px solid var(--line);padding-left:18px}
.toc__title{display:block;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--text-3);margin-bottom:12px}
.toc__list a{
  display:block;font-size:14px;line-height:1.6;color:var(--text-2);
  padding:7px 0 7px 18px;margin-left:-20px;border-left:2px solid transparent;
  transition:color var(--t-color),border-color var(--t-color)
}
.toc__list a:hover{color:var(--primary)}
.toc__list a.is-current{color:var(--primary);border-left-color:var(--primary);font-weight:600}
.toc__list .toc-h3 a{padding-left:34px;font-size:13.5px;color:var(--text-3)}
.toc-card{
  margin-top:28px;padding:24px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;box-shadow:var(--shadow-1);
}
.toc-card h3{font-size:17px;margin-bottom:10px}
.toc-card p{font-size:14.5px;line-height:1.75;color:var(--text-2);margin-bottom:18px}

/* 正文排版 */
.prose{max-width:760px;overflow-wrap:break-word}
.prose h2{font-size:28px;line-height:1.35;margin:48px 0 16px;padding-left:16px;border-left:3px solid var(--primary)}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:21px;line-height:1.4;margin:32px 0 12px}
.prose p{margin:0 0 1.15em;color:#222B28}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:22px}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:8px 0;line-height:1.85}
.prose blockquote{
  margin:28px 0;padding:20px 28px;border-left:3px solid var(--primary);
  background:var(--bg-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;margin:28px auto}
.prose figure{margin:28px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.prose a:hover{color:var(--primary-deep)}
.prose strong{font-weight:700}
.prose hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.prose table{width:100%;border-collapse:collapse;font-size:15.5px;margin:26px 0;border:1px solid var(--line)}
.prose th,.prose td{padding:12px 14px;border:1px solid var(--line);text-align:left}
.prose th{background:var(--bg-soft);font-weight:600}
.prose code{background:var(--bg-soft);padding:2px 6px;border-radius:6px;font-size:.92em}

/* 空态 */
.empty-state{
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state svg{margin:0 auto 18px;color:var(--primary)}
.empty-state h2{font-size:24px;margin-bottom:12px;border:0;padding:0}
.empty-state p{color:var(--text-2);max-width:460px;margin:0 auto 26px}

/* 文章尾部 */
.post-foot{margin-top:56px;padding-top:26px;border-top:1px solid var(--line);max-width:760px}
.post-foot__row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.post-foot__label{font-size:13px;color:var(--text-3);letter-spacing:.06em}
.share-row{display:flex;align-items:center;gap:20px;flex-wrap:wrap;font-size:14.5px}
.share-row a{color:var(--text-2);border-bottom:1px solid var(--line);padding-bottom:2px;transition:color var(--t-color),border-color var(--t-color)}
.share-row a:hover{color:var(--primary);border-color:var(--primary)}

/* 卡片 */
.grid--3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--t-fast),box-shadow var(--t-fast),border-color var(--t-color);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,159,126,.28)}
.card__media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.card__body h3{font-size:21px;line-height:1.4;margin:14px 0 10px}
.card__body p{font-size:15.5px;color:var(--text-2);line-height:1.75;margin-bottom:18px}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);padding-top:16px;border-top:1px solid var(--line)}
.card__foot .link-more{font-size:14px}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;color:#F2F5F3;
  background:var(--bg-ink) url(/assets/images/backpic/back-3.png) center/cover no-repeat;
  padding:88px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,21,18,.94),rgba(11,21,18,.7) 60%,rgba(7,112,90,.55));
}
.cta-band .container{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.cta-band h2{font-size:32px;line-height:1.3;color:#F2F5F3;margin-bottom:16px}
.cta-band p{color:rgba(242,245,243,.72);max-width:560px;margin-bottom:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.cta-list{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(242,245,243,.72)}
.cta-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:12px}

/* 页脚 */
.site-footer{background:var(--bg-ink);color:rgba(242,245,243,.68);padding:72px 0 32px;font-size:15px}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px}
.site-footer h3{font-size:15px;font-weight:600;color:#F2F5F3;margin-bottom:18px}
.site-footer ul li{margin-bottom:10px}
.site-footer a{color:rgba(242,245,243,.68);transition:color var(--t-color)}
.site-footer a:hover{color:var(--accent)}
.footer__brand{display:flex;align-items:center;gap:10px;color:#F2F5F3;font-weight:700;font-size:18px;margin-bottom:14px}
.footer p{max-width:340px;line-height:1.8;margin-bottom:0}
.footer__social{display:flex;gap:12px;margin-top:20px}
.footer__social a{
  width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);border-radius:50%;color:rgba(242,245,243,.8);
  transition:color var(--t-color),border-color var(--t-color)
}
.footer__social a:hover{border-color:var(--accent);color:var(--accent)}
.footer__bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,245,243,.5)
}

@media (max-width:1199px){
  .cta-band .container{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:1024px){
  .nav__links{display:none}
  .nav__right .btn{display:none}
  .hamburger{display:flex}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .post-title{font-size:36px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-head h2{font-size:24px}
  .post-hero{padding:38px 0 40px}
  .post-title{font-size:30px}
  .post-wrap{padding:44px 0 64px}
  .prose h2{font-size:23px;margin-top:36px}
  .prose h3{font-size:19px}
  .cta-band{padding:64px 0}
  .cta-band h2{font-size:24px}
  .grid--3{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{margin-top:34px}
}
@media (max-width:520px){
  .post-title{font-size:26px}
  .card__body{padding:20px}
  .empty-state{padding:40px 22px}
}

/* roulang page: category2 */
:root{
  --bg:#F6F5F1;
  --bg-soft:#EDEBE5;
  --bg-ink:#0B1512;
  --primary:#0E9F7E;
  --primary-deep:#07705A;
  --primary-soft:rgba(14,159,126,.06);
  --accent:#D6F26B;
  --text:#141A18;
  --text-2:#55605C;
  --text-3:#8A948F;
  --ink-text:#F2F5F3;
  --ink-text-2:rgba(242,245,243,.68);
  --line:rgba(20,26,24,.10);
  --line-ink:rgba(255,255,255,.12);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.05),0 10px 24px -14px rgba(11,21,18,.14);
  --shadow-2:0 2px 4px rgba(11,21,18,.06),0 18px 40px -18px rgba(11,21,18,.22);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--soft{background:var(--bg-soft);}
.section--ink{background:var(--bg-ink);color:var(--ink-text);padding:96px 0;}
.section__head{max-width:760px;margin-bottom:48px;}
.section__title{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.section__desc{margin-top:14px;color:var(--text-2);max-width:640px;}
.section--ink .section__desc{color:var(--ink-text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--primary-deep);
  background:rgba(14,159,126,.10);
  border:1px solid rgba(14,159,126,.28);
  border-radius:var(--r-full);
  padding:5px 14px;
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}
.section--ink .eyebrow{color:var(--accent);background:rgba(214,242,107,.08);border-color:rgba(214,242,107,.34);}
.section--ink .eyebrow::before{background:var(--accent);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(246,245,241,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.brand__mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),#19C79C 60%,var(--accent));
  box-shadow:inset 0 0 0 1px rgba(11,21,18,.12);
  flex:0 0 auto;
}
.brand__text{color:var(--text);}
.nav__links{display:flex;align-items:center;gap:36px;}
.nav__link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;
  transition:color 220ms ease;
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;
  background:var(--primary);border-radius:2px;
  transform:translateX(-50%);
  transition:width 200ms ease;
}
.nav__link:hover{color:var(--primary);}
.nav__link:hover::after{width:60%;}
.nav__link.is-active{color:var(--text);font-weight:600;}
.nav__link.is-active::after{width:60%;}
.nav__right{display:flex;align-items:center;gap:16px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-full);
  color:var(--text-2);
  transition:color 200ms ease,background 200ms ease;
}
.icon-btn:hover{color:var(--primary);background:var(--primary-soft);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border-radius:var(--r-full);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background 220ms ease,color 220ms ease,border-color 220ms ease,transform 160ms ease,box-shadow 220ms ease;
  white-space:nowrap;
}
.btn--sm{height:40px;padding:0 20px;font-size:14.5px;}
.btn--primary{background:var(--primary);color:#fff;}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{border-color:var(--line);color:var(--text);background:transparent;}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
.btn--light{background:var(--accent);color:#12261F;}
.btn--light:hover{background:#E3FA83;transform:translateY(-1px);}
.btn--outline-light{border-color:var(--line-ink);color:var(--ink-text);}
.btn--outline-light:hover{border-color:var(--accent);color:var(--accent);}
.btn--text{
  height:auto;padding:0;border:0;
  color:var(--primary);font-weight:600;
  border-bottom:1px solid rgba(14,159,126,.55);
  border-radius:0;padding-bottom:2px;}
.btn--text:hover{border-bottom-width:2px;}
.hamburger{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  position:relative;
}
.hamburger span,.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:11px;width:18px;height:1.6px;background:var(--text);border-radius:2px;
  transition:transform 200ms ease,opacity 200ms ease;
}
.hamburger span{top:19px;}
.hamburger span::before{top:-6px;left:0;}
.hamburger span::after{top:6px;left:0;}
.hamburger:hover span,.hamburger:hover span::before,.hamburger:hover span::after{background:var(--primary);}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--bg-ink);color:var(--ink-text);
  transform:translateX(100%);
  transition:transform 240ms ease;
  display:flex;flex-direction:column;
  padding:22px 24px 40px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px;}
.drawer__brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px;}
.drawer__close{
  width:40px;height:40px;border-radius:var(--r-full);
  border:1px solid var(--line-ink);color:var(--ink-text);
  font-size:20px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer__close:hover{border-color:var(--accent);color:var(--accent);}
.drawer__links{display:flex;flex-direction:column;gap:6px;}
.drawer__links a{
  display:block;padding:16px 0;
  font-size:20px;font-weight:600;
  border-bottom:1px solid var(--line-ink);
  opacity:0;transform:translateY(8px);
  transition:opacity 240ms ease,transform 240ms ease,color 200ms ease;
}
.drawer.is-open .drawer__links a{opacity:1;transform:none;}
.drawer__links a:hover{color:var(--accent);}
.drawer__links li:nth-child(1) a{transition-delay:40ms;}
.drawer__links li:nth-child(2) a{transition-delay:80ms;}
.drawer__links li:nth-child(3) a{transition-delay:120ms;}
.drawer__links li:nth-child(4) a{transition-delay:160ms;}
.drawer__links li:nth-child(5) a{transition-delay:200ms;}
body.is-locked{overflow:hidden;}

/* ---------- Page head ---------- */
.page-head{padding:72px 0 84px;background:var(--bg);border-bottom:1px solid var(--line);}
.page-head__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.page-head__title{font-size:46px;font-weight:800;line-height:1.22;letter-spacing:-.02em;}
.page-head__desc{margin-top:18px;font-size:18px;color:var(--text-2);max-width:560px;}
.page-head__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.meta-row{
  display:flex;flex-wrap:wrap;gap:28px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.meta-row__item{display:flex;flex-direction:column;gap:2px;}
.meta-row__num{font-size:22px;font-weight:700;color:var(--primary-deep);}
.meta-row__label{font-size:13px;color:var(--text-3);line-height:1.7;}
.page-head__media{
  border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/11;background:var(--bg-soft);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.page-head__media img{width:100%;height:100%;object-fit:cover;}

/* ---------- Checklist (ink) ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;}
.checklist__item{
  padding:26px 0;border-top:1px solid var(--line-ink);
  display:grid;grid-template-columns:52px 1fr;gap:16px;
}
.checklist__num{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--accent);line-height:1.9;}
.checklist__title{font-size:19px;font-weight:700;margin-bottom:8px;}
.checklist__text{font-size:15.5px;line-height:1.8;color:var(--ink-text-2);max-width:520px;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.step{position:relative;padding:0 26px 0 0;}
.step:last-child{padding-right:0;}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-full);
  background:var(--primary-soft);border:1px solid rgba(14,159,126,.3);
  color:var(--primary-deep);font-size:14px;font-weight:700;
  margin-bottom:18px;
}
.step__line{position:absolute;top:19px;left:48px;right:22px;height:1px;background:var(--line);}
.step:last-child .step__line{display:none;}
.step__title{font-size:19px;font-weight:700;margin-bottom:8px;}
.step__text{font-size:15.5px;color:var(--text-2);line-height:1.8;max-width:280px;}

/* ---------- Media cards ---------- */
.media-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.media-card{
  display:grid;grid-template-columns:40% 1fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform 160ms ease,box-shadow 220ms ease;
}
.media-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.media-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft);height:100%;}
.media-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease;}
.media-card:hover .media-card__media img{transform:scale(1.03);}
.media-card__body{padding:24px 26px;}
.media-card__body h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.media-card__body p{font-size:15.5px;color:var(--text-2);line-height:1.8;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--primary-deep);background:rgba(14,159,126,.12);
  border:1px solid rgba(14,159,126,.24);
  border-radius:var(--r-full);padding:3px 11px;margin-bottom:12px;
}

/* ---------- Myth panel ---------- */
.myth-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);}
.myth-row{display:grid;grid-template-columns:1fr 1fr;gap:0;border-bottom:1px solid var(--line);}
.myth-row:last-child{border-bottom:0;}
.myth-cell{padding:26px 32px;}
.myth-cell--wrong{background:var(--bg-soft);border-right:1px solid var(--line);}
.myth-cell__label{font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--text-3);display:block;margin-bottom:10px;}
.myth-cell--right .myth-cell__label{color:var(--primary-deep);}
.myth-cell p{font-size:16px;line-height:1.8;color:var(--text-2);}
.myth-cell--right p{color:var(--text);}

/* ---------- Quote / testimonial ---------- */
.quote{
  border-left:3px solid var(--primary);
  background:var(--bg-soft);
  padding:20px 28px;border-radius:0 var(--r-md) var(--r-md) 0;
  margin:0;
}
.quote p{font-size:16.5px;line-height:1.85;}
.quote__by{margin-top:14px;font-size:13.5px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq{max-width:820px;}
.faq__item{border-top:1px solid var(--line);}
.faq__item:last-child{border-bottom:1px solid var(--line);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:56px;padding:16px 0;text-align:left;
  font-size:19px;font-weight:600;color:var(--text);
  transition:color 200ms ease;
}
.faq__q:hover{color:var(--primary);}
.faq__icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform 220ms ease,opacity 220ms ease;
}
.faq__icon::before{width:13px;height:1.6px;}
.faq__icon::after{width:1.6px;height:13px;}
.faq__item.is-open .faq__icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq__a{max-height:0;overflow:hidden;transition:max-height 260ms ease;}
.faq__a-inner{padding:0 56px 26px 0;font-size:16px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta{background:var(--bg-ink);color:var(--ink-text);padding:96px 0;}
.cta__grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.cta__title{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.cta__desc{margin-top:16px;color:var(--ink-text-2);max-width:460px;}
.cta__list{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.cta__list li{display:flex;gap:10px;font-size:15.5px;color:var(--ink-text-2);}
.cta__list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:11px;flex:0 0 auto;}
.cta__form{display:grid;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;color:var(--ink-text-2);}
.field input,.field textarea{
  height:48px;padding:0 14px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-ink);
  border-radius:10px;color:var(--ink-text);
  transition:border-color 200ms ease,box-shadow 200ms ease,background 200ms ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:120px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(242,245,243,.42);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(14,159,126,.18);
  background:rgba(255,255,255,.06);
}
.form-note{font-size:13px;color:rgba(242,245,243,.55);line-height:1.7;}
.form-note.is-ok{color:var(--accent);}
.form-note.is-err{color:#F0A79B;}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-ink);color:var(--ink-text);padding:72px 0 28px;}
.footer__grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid var(--line-ink);
}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:16px;}
.site-footer p{font-size:14.5px;line-height:1.8;color:var(--ink-text-2);max-width:340px;}
.footer__social{display:flex;gap:12px;margin-top:20px;}
.footer__social a{
  width:36px;height:36px;border-radius:var(--r-full);
  border:1px solid var(--line-ink);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-text-2);
  transition:color 200ms ease,border-color 200ms ease,transform 160ms ease;
}
.footer__social a:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px);}
.site-footer h3{font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--ink-text);margin-bottom:18px;}
.site-footer ul{display:flex;flex-direction:column;gap:12px;}
.site-footer ul li{font-size:14.5px;color:var(--ink-text-2);line-height:1.7;}
.site-footer ul a{color:var(--ink-text-2);transition:color 200ms ease;}
.site-footer ul a:hover{color:var(--accent);}
.footer__bottom{
  padding-top:22px;text-align:center;
  font-size:13px;color:rgba(242,245,243,.5);line-height:1.8;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav__links{display:none;}
  .hamburger{display:block;}
  .nav__right .btn--sm{display:none;}
  .page-head__grid{grid-template-columns:1fr;gap:40px;}
  .page-head__title{font-size:38px;}
  .checklist{grid-template-columns:1fr;gap:0;}
  .steps{grid-template-columns:repeat(2,1fr);gap:36px 0;}
  .step__line{display:none;}
  .media-grid{grid-template-columns:1fr;}
  .cta__grid{grid-template-columns:1fr;gap:44px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section--ink{padding:60px 0;}
  .cta{padding:64px 0;}
  .page-head{padding:48px 0 56px;}
  .page-head__title{font-size:30px;}
  .page-head__desc{font-size:16.5px;}
  .section__title{font-size:24px;}
  .section__head{margin-bottom:32px;}
  .meta-row{gap:20px 28px;}
  .steps{grid-template-columns:1fr;gap:28px;}
  .step{padding:0;}
  .media-card{grid-template-columns:1fr;}
  .media-card__media{aspect-ratio:16/9;}
  .myth-row{grid-template-columns:1fr;}
  .myth-cell--wrong{border-right:0;border-bottom:1px solid var(--line);}
  .myth-cell{padding:22px 20px;}
  .faq__q{font-size:17px;}
  .faq__a-inner{padding-right:24px;}
  .cta__title{font-size:24px;}
  .footer__grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:56px 0 24px;}
  .quote{padding:18px 20px;}
}
@media (max-width:520px){
  .page-head__actions{flex-direction:column;align-items:stretch;}
  .page-head__actions .btn{width:100%;}
  .meta-row{flex-direction:column;gap:16px;}
}

/* roulang page: category3 */
:root{
  --bg:#F6F5F1;
  --bg-soft:#EDEBE5;
  --bg-ink:#0B1512;
  --primary:#0E9F7E;
  --primary-deep:#07705A;
  --primary-tint:rgba(14,159,126,.06);
  --accent:#D6F26B;
  --text:#141A18;
  --text-2:#55605C;
  --text-3:#8A948F;
  --line:rgba(20,26,24,.10);
  --line-strong:rgba(20,26,24,.18);
  --line-dark:rgba(255,255,255,.12);
  --ink-text:#F2F5F3;
  --ink-text-2:rgba(242,245,243,.68);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.05),0 10px 24px -14px rgba(11,21,18,.14);
  --shadow-2:0 2px 4px rgba(11,21,18,.06),0 18px 40px -18px rgba(11,21,18,.22);
  --ease:160ms ease;
  --ease-c:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(246,245,241,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease-c);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  position:relative;flex-shrink:0;
}
.brand__mark::after{
  content:"";position:absolute;inset:6px;border-radius:3px;background:var(--accent);
}
.brand__text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav__links{display:flex;align-items:center;gap:36px}
.nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;transition:color var(--ease-c);
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;
  background:var(--primary);transform:translateX(-50%);
  transition:width var(--ease-c);border-radius:2px;
}
.nav__link:hover{color:var(--primary)}
.nav__link:hover::after{width:60%}
.nav__link.is-active{color:var(--text);font-weight:600}
.nav__link.is-active::after{width:60%}
.nav__right{display:flex;align-items:center;gap:14px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-full);
  border:1px solid var(--line);color:var(--text-2);
  transition:color var(--ease-c),border-color var(--ease-c),background var(--ease-c);
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-tint)}
.hamburger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-full);border:1px solid var(--line);
}
.hamburger span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;background:var(--bg-ink);
  opacity:0;visibility:hidden;transition:opacity var(--ease-c),visibility var(--ease-c);
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;height:74px}
.drawer__brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-text);font-weight:800;font-size:17px}
.drawer__close{
  width:42px;height:42px;border-radius:var(--r-full);
  border:1px solid var(--line-dark);color:var(--ink-text);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;line-height:1;
}
.drawer__close:hover{background:rgba(255,255,255,.08)}
.drawer__links{margin-top:34px;border-top:1px solid var(--line-dark)}
.drawer__links li{
  border-bottom:1px solid var(--line-dark);
  opacity:0;transform:translateY(8px);
  transition:opacity var(--ease-c),transform var(--ease-c);
}
.drawer.is-open .drawer__links li{opacity:1;transform:translateY(0)}
.drawer__links li:nth-child(1){transition-delay:40ms}
.drawer__links li:nth-child(2){transition-delay:80ms}
.drawer__links li:nth-child(3){transition-delay:120ms}
.drawer__links li:nth-child(4){transition-delay:160ms}
.drawer__links li:nth-child(5){transition-delay:200ms}
.drawer__links a{display:block;padding:18px 0;color:var(--ink-text);font-size:20px;font-weight:600}
.drawer__links a.is-active{color:var(--accent)}
.drawer__note{margin-top:28px;color:var(--ink-text-2);font-size:14px;line-height:1.7}
body.is-locked{overflow:hidden}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-full);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease-c),color var(--ease-c),border-color var(--ease-c),transform var(--ease),box-shadow var(--ease-c);
}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border:1px solid var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-tint)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--light{background:var(--accent);color:#12211C}
.btn--light:hover{background:#E4FA84;transform:translateY(-1px)}
.btn--outline-light{border:1px solid var(--line-dark);color:var(--ink-text)}
.btn--outline-light:hover{border-color:var(--accent);color:var(--accent)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);margin-bottom:14px;
}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--soft{background:var(--bg-soft)}
.section__head{max-width:760px;margin-bottom:44px}
.section__head h2{
  font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-bottom:14px;
}
.section__head p{color:var(--text-2);max-width:640px}
.lead{color:var(--text-2);font-size:17px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-full);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);background:rgba(14,159,126,.10);border:1px solid rgba(14,159,126,.24);
}
.divider{height:1px;background:var(--line);margin:0}

/* ---------- page head ---------- */
.page-head{padding:52px 0 48px;border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.is-current{color:var(--text)}
.page-head__inner{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.page-head h1{
  font-size:42px;font-weight:800;line-height:1.22;letter-spacing:-.02em;margin-bottom:18px;
}
.page-head__desc{color:var(--text-2);max-width:560px;margin-bottom:26px}
.page-head__meta{display:flex;flex-wrap:wrap;gap:10px}
.page-head__media{
  aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-soft);box-shadow:var(--shadow-1);
}
.page-head__media img{width:100%;height:100%;object-fit:cover}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:38px}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(14,159,126,.55),rgba(14,159,126,.08));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:1fr 300px;gap:44px;align-items:center;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.tl-item:last-child{border-bottom:none}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:38px;
  width:15px;height:15px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(14,159,126,.14);
}
.tl-item:nth-child(even){grid-template-columns:300px 1fr}
.tl-item:nth-child(even) .tl-item__body{order:2}
.tl-item:nth-child(even) .tl-item__media{order:1}
.tl-item__num{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--primary-deep);background:rgba(14,159,126,.10);
  border-radius:var(--r-full);padding:3px 12px;margin-bottom:12px;
}
.tl-item__body h3{font-size:21px;font-weight:700;line-height:1.4;margin-bottom:10px}
.tl-item__body > p{color:var(--text-2);max-width:560px}
.tl-item__list{margin-top:14px;display:grid;gap:8px}
.tl-item__list li{position:relative;padding-left:18px;color:var(--text-2);font-size:15.5px;line-height:1.8}
.tl-item__list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.tl-item__media{
  aspect-ratio:16/10;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-soft);
}
.tl-item__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease-c)}
.tl-item:hover .tl-item__media img{transform:scale(1.03)}

/* ---------- key points ---------- */
.points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px}
.point{padding:22px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:26px 1fr;gap:16px}
.point__idx{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.06em;line-height:2.1}
.point h3{font-size:17px;font-weight:700;margin-bottom:6px}
.point p{color:var(--text-2);font-size:15.5px;line-height:1.8}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.scene-card{
  display:grid;grid-template-columns:44% 1fr;gap:0;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform var(--ease),box-shadow var(--ease-c),border-color var(--ease-c);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.scene-card__media{aspect-ratio:16/10;background:var(--bg-soft);overflow:hidden;height:100%}
.scene-card__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease-c)}
.scene-card:hover .scene-card__media img{transform:scale(1.03)}
.scene-card__body{padding:26px}
.scene-card__body h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:10px}
.scene-card__body p{color:var(--text-2);font-size:15.5px;line-height:1.8}

/* ---------- faq ---------- */
.faq{max-width:820px}
.faq__item{border-top:1px solid var(--line)}
.faq__item:last-child{border-bottom:1px solid var(--line)}
.faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;text-align:left;min-height:56px;padding:14px 0;
  font-size:19px;font-weight:600;transition:color var(--ease-c);
}
.faq__q:hover{color:var(--primary)}
.faq__icon{
  position:relative;flex-shrink:0;width:16px;height:16px;
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform var(--ease-c);
}
.faq__icon::before{left:0;top:7px;width:16px;height:2px}
.faq__icon::after{left:7px;top:0;width:2px;height:16px}
.faq__item.is-open .faq__icon::after{transform:scaleY(0)}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height var(--ease-c),padding var(--ease-c);
}
.faq__a p{color:var(--text-2);font-size:16px;line-height:1.8;padding:0 40px 24px 0}
.faq__item.is-open .faq__a{max-height:340px}

/* ---------- cta ---------- */
.cta{
  background:var(--bg-ink);color:var(--ink-text);
  border-radius:var(--r-lg);padding:64px;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;
}
.cta h2{font-size:30px;font-weight:700;line-height:1.3;margin-bottom:16px;letter-spacing:-.01em}
.cta p{color:var(--ink-text-2);max-width:460px}
.cta__facts{margin-top:28px;display:grid;gap:12px}
.cta__facts li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-text-2);font-size:15px}
.cta__facts li::before{content:"";margin-top:12px;width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
.form{display:grid;gap:18px}
.form__row{display:grid;gap:8px}
.form__row label{font-size:13px;color:var(--ink-text-2)}
.form__row input,.form__row textarea{
  width:100%;height:48px;padding:0 14px;border-radius:10px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:var(--ink-text);
  transition:border-color var(--ease-c),box-shadow var(--ease-c),background var(--ease-c);
}
.form__row textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.form__row input::placeholder,.form__row textarea::placeholder{color:rgba(242,245,243,.42)}
.form__row input:focus,.form__row textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(255,255,255,.09);
  box-shadow:0 0 0 4px rgba(14,159,126,.18);
}
.form__hint{font-size:13px;color:rgba(242,245,243,.55)}
.form .btn{justify-self:start;padding:0 30px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-ink);color:var(--ink-text);padding:72px 0 28px;margin-top:0}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-top:1px solid var(--line-dark);padding-top:44px;
}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px}
.site-footer p{color:var(--ink-text-2);font-size:15px;line-height:1.85;max-width:340px}
.site-footer h3{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--ink-text);margin-bottom:18px}
.site-footer ul{display:grid;gap:12px}
.site-footer ul li{color:var(--ink-text-2);font-size:15px}
.site-footer ul a{color:var(--ink-text-2);position:relative;transition:color var(--ease-c)}
.site-footer ul a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);
  transition:width var(--ease-c);
}
.site-footer ul a:hover{color:var(--accent)}
.site-footer ul a:hover::after{width:100%}
.footer__social{display:flex;gap:12px;margin-top:20px}
.footer__social a{
  width:38px;height:38px;border-radius:var(--r-full);border:1px solid var(--line-dark);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-text-2);
  transition:color var(--ease-c),border-color var(--ease-c);
}
.footer__social a:hover{color:var(--accent);border-color:var(--accent)}
.footer__bottom{
  border-top:1px solid var(--line-dark);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(242,245,243,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav__links{gap:26px}
  .page-head h1{font-size:36px}
}
@media (max-width:1024px){
  .nav__links{display:none}
  .nav__right .icon-btn{display:none}
  .nav__right .btn--primary{display:none}
  .hamburger{display:inline-flex}
  .page-head__inner{grid-template-columns:1fr;gap:32px}
  .page-head__media{max-width:620px}
  .tl-item,.tl-item:nth-child(even){grid-template-columns:1fr;gap:22px}
  .tl-item:nth-child(even) .tl-item__body{order:1}
  .tl-item:nth-child(even) .tl-item__media{order:2}
  .tl-item__media{max-width:520px}
  .cta{grid-template-columns:1fr;gap:36px;padding:48px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  body{font-size:16px}
  .section{padding:64px 0}
  .section--tight{padding:48px 0}
  .section__head h2{font-size:24px}
  .page-head{padding:36px 0 34px}
  .page-head h1{font-size:30px;line-height:1.25}
  .timeline{padding-left:30px}
  .timeline::before{left:5px}
  .tl-item::before{left:-30px;top:34px;width:13px;height:13px}
  .points{grid-template-columns:1fr;gap:0}
  .scene-grid{grid-template-columns:1fr}
  .scene-card{grid-template-columns:1fr}
  .scene-card__media{aspect-ratio:16/9}
  .faq__q{font-size:17px}
  .cta{padding:36px 24px;border-radius:var(--r-md)}
  .cta h2{font-size:23px}
  .footer__grid{grid-template-columns:1fr;gap:32px;padding-top:34px}
  .site-footer{padding:52px 0 24px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .nav{height:66px}
  .brand__text{font-size:15.5px}
  .drawer__top{height:66px}
  .page-head h1{font-size:26px}
  .btn{width:100%;padding:0 20px}
  .btn--sm{width:auto}
  .form .btn{width:100%;justify-self:stretch}
  .cta__facts li{font-size:14px}
}

/* roulang page: category4 */
:root{
  --bg:#F6F5F1;
  --bg-soft:#EDEBE5;
  --bg-ink:#0B1512;
  --primary:#0E9F7E;
  --primary-deep:#07705A;
  --accent:#D6F26B;
  --text:#141A18;
  --text-2:#55605C;
  --text-3:#8A948F;
  --line:rgba(20,26,24,.10);
  --line-dark:rgba(255,255,255,.12);
  --ink-text:#F2F5F3;
  --ink-text-2:rgba(242,245,243,.68);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-full:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.05),0 10px 24px -14px rgba(11,21,18,.14);
  --shadow-2:0 2px 4px rgba(11,21,18,.06),0 18px 40px -18px rgba(11,21,18,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:46px;line-height:1.22;font-weight:800;letter-spacing:-.02em;}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3{font-size:21px;line-height:1.4;font-weight:700;}
p{color:var(--text-2);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:4px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--primary);
  background:rgba(14,159,126,.10);
  border:1px solid rgba(14,159,126,.24);
  border-radius:var(--r-full);
  padding:5px 14px;
  margin-bottom:16px;
}
.section-head h2 + p{margin-top:14px;max-width:640px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border-radius:var(--r-full);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background 220ms ease,color 220ms ease,border-color 220ms ease,transform 160ms ease,box-shadow 160ms ease;
}
.btn--primary{background:var(--primary);color:#fff;}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn--primary:active{transform:translateY(0);box-shadow:none;}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(14,159,126,.06);}
.btn--light{background:transparent;border-color:rgba(255,255,255,.28);color:var(--ink-text);}
.btn--light:hover{border-color:var(--accent);color:var(--accent);}
.btn--sm{height:38px;padding:0 20px;font-size:14px;}
.btn[disabled]{opacity:.45;pointer-events:none;}
.text-link{
  color:var(--primary);
  font-size:14.5px;
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:6px;
  text-decoration-thickness:1px;
  transition:text-decoration-thickness 160ms ease,color 220ms ease;
}
.text-link:hover{text-decoration-thickness:2px;color:var(--primary-deep);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);
  background:rgba(14,159,126,.10);
  border:1px solid rgba(14,159,126,.24);
  border-radius:var(--r-full);
  padding:4px 12px;
}
.badge--accent{background:var(--accent);border-color:var(--accent);color:#141A18;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(246,245,241,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand__mark{
  width:22px;height:22px;border-radius:7px;flex:none;position:relative;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
}
.brand__mark::after{
  content:"";position:absolute;right:-3px;top:-3px;
  width:8px;height:8px;border-radius:50%;background:var(--accent);
}
.brand__text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--text);}
.nav__links{display:flex;align-items:center;gap:36px;}
.nav__link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color 220ms ease;
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;
  width:0;height:2px;border-radius:2px;background:var(--primary);
  transform:translateX(-50%);
  transition:width 200ms ease;
}
.nav__link:hover{color:var(--primary);}
.nav__link:hover::after{width:100%;}
.nav__link.is-active{color:var(--text);font-weight:600;}
.nav__link.is-active::after{width:60%;}
.nav__right{display:flex;align-items:center;gap:14px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);color:var(--text-2);
  transition:border-color 220ms ease,color 220ms ease,background 220ms ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(14,159,126,.06);}
.hamburger{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:transparent;cursor:pointer;
}
.hamburger span{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:var(--text);}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--text);
}
.hamburger span::before{top:-5px;}
.hamburger span::after{top:5px;}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;
  background:var(--bg-ink);
  padding:24px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;
  transition:opacity 220ms ease,visibility 220ms ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer__top{display:flex;align-items:center;justify-content:space-between;height:50px;}
.drawer__brand{display:flex;align-items:center;gap:10px;color:var(--ink-text);font-size:17px;font-weight:700;}
.drawer__close{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-dark);background:transparent;color:var(--ink-text);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer__links{margin-top:36px;display:flex;flex-direction:column;gap:6px;}
.drawer__item{
  opacity:0;transform:translateY(12px);
  transition:opacity 260ms ease,transform 260ms ease;
}
.drawer.is-open .drawer__item{opacity:1;transform:none;}
.drawer.is-open .drawer__item:nth-child(1){transition-delay:40ms;}
.drawer.is-open .drawer__item:nth-child(2){transition-delay:80ms;}
.drawer.is-open .drawer__item:nth-child(3){transition-delay:120ms;}
.drawer.is-open .drawer__item:nth-child(4){transition-delay:160ms;}
.drawer.is-open .drawer__item:nth-child(5){transition-delay:200ms;}
.drawer__item a{
  display:block;padding:16px 0;
  font-size:20px;font-weight:600;color:var(--ink-text);
  border-bottom:1px solid var(--line-dark);
}
.drawer__item a.is-active{color:var(--accent);}
.drawer__cta{margin-top:32px;width:100%;}
body.no-scroll{overflow:hidden;}

/* ---------- 页面头 ---------- */
.page-head{padding:56px 0 0;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;letter-spacing:.04em;color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);transition:color 220ms ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span[aria-current]{color:var(--text);}
.page-head__grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
  margin-top:26px;
}
.page-head__title{max-width:640px;}
.page-head__title h1{margin-bottom:16px;}
.page-head__lead{font-size:17px;line-height:1.85;max-width:560px;color:var(--text-2);}
.page-head__meta{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:26px;padding-top:22px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-3);
}
.page-head__media figure{margin:0;}
.page-head__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
}

/* ---------- 筛选条 ---------- */
.filter-bar{
  margin-top:52px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:22px 24px;
  display:flex;flex-direction:column;gap:18px;
}
.filter-bar__row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.search-box{position:relative;flex:1;min-width:260px;}
.search-box svg{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  color:var(--text-3);pointer-events:none;
}
.search-box input{
  width:100%;height:48px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--bg);
  padding:0 16px 0 44px;
  transition:border-color 220ms ease,box-shadow 220ms ease,background 220ms ease;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{
  outline:none;
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(14,159,126,.10);
}
.chips{display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  height:36px;padding:0 16px;
  border-radius:var(--r-full);
  border:1px solid var(--line);
  background:transparent;
  font-size:13.5px;font-weight:500;color:var(--text-2);
  cursor:pointer;
  transition:border-color 220ms ease,color 220ms ease,background 220ms ease;
}
.chip:hover{border-color:var(--primary);color:var(--primary);}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- FAQ 区 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:40px;align-items:start;}
.faq-list{max-width:820px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 0;min-height:56px;
  background:none;border:0;
  font-size:19px;font-weight:600;color:var(--text);
  text-align:left;cursor:pointer;
  transition:color 220ms ease;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:0 0 18px;width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transition:transform 220ms ease,opacity 220ms ease;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease;}
.faq-a__inner{
  padding:0 56px 24px 0;
  font-size:16px;line-height:1.8;color:var(--text-2);
}
.faq-a__inner ul{margin-top:10px;}
.faq-a__inner li{
  position:relative;padding-left:16px;line-height:1.85;margin-bottom:8px;
}
.faq-a__inner li::before{
  content:"";position:absolute;left:0;top:12px;
  width:5px;height:5px;border-radius:50%;background:var(--primary);
}

/* ---------- 支持卡 ---------- */
.support-card{
  position:sticky;top:96px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:26px;
}
.support-card h3{font-size:19px;margin-bottom:10px;}
.support-card > p{font-size:15px;line-height:1.75;}
.support-list{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
.support-list li{
  display:flex;justify-content:space-between;gap:14px;
  padding-bottom:14px;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.support-list li:last-child{border-bottom:0;padding-bottom:0;}
.support-list dt,.support-list .k{color:var(--text-3);}
.support-list .v{color:var(--text);font-weight:600;text-align:right;}

/* ---------- 分类入口卡 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.content-card{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px;
  transition:transform 160ms ease,box-shadow 160ms ease,border-color 220ms ease;
}
.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,159,126,.32);}
.content-card h3{font-size:19px;}
.content-card p{
  font-size:15px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.content-card .meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ---------- CTA ---------- */
.cta-band{background:var(--bg-ink);color:var(--ink-text);padding:88px 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.cta-band h2{color:var(--ink-text);}
.cta-band p{color:var(--ink-text-2);}
.cta-copy > p{margin-top:16px;max-width:520px;font-size:16.5px;}
.cta-stats{margin-top:36px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.cta-stats div{padding:0 20px;border-left:1px solid var(--line-dark);}
.cta-stats div:first-child{padding-left:0;border-left:0;}
.cta-stats strong{display:block;font-size:26px;font-weight:800;color:var(--accent);letter-spacing:-.01em;}
.cta-stats span{font-size:13px;color:var(--ink-text-2);}
.cta-form{display:flex;flex-direction:column;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;color:var(--ink-text-2);}
.field input,.field select,.field textarea{
  width:100%;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  border-radius:10px;
  color:var(--ink-text);
  padding:0 14px;height:48px;
  transition:border-color 220ms ease,box-shadow 220ms ease,background 220ms ease;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(242,245,243,.42);}
.field select option{color:#141A18;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:rgba(255,255,255,.10);
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(14,159,126,.22);
}
.form-note{font-size:13px;color:var(--ink-text-2);}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:8px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-ink);color:var(--ink-text);padding:72px 0 0;}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid var(--line-dark);
}
.footer__brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--ink-text);
}
.site-footer p{color:var(--ink-text-2);font-size:14.5px;line-height:1.8;margin-top:16px;max-width:340px;}
.site-footer h3{
  font-size:14px;font-weight:600;letter-spacing:.06em;
  color:rgba(242,245,243,.62);
  margin-bottom:18px;
}
.site-footer ul li{margin-bottom:12px;font-size:14.5px;color:var(--ink-text-2);}
.site-footer ul li a{color:var(--ink-text-2);transition:color 220ms ease;}
.site-footer ul li a:hover{color:var(--accent);}
.footer__social{display:flex;gap:10px;margin-top:22px;}
.footer__social a{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line-dark);color:var(--ink-text-2);
  transition:border-color 220ms ease,color 220ms ease;
}
.footer__social a:hover{border-color:var(--accent);color:var(--accent);}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;
  font-size:13px;color:rgba(242,245,243,.55);
}
.footer__bottom a{color:rgba(242,245,243,.55);}
.footer__bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav__links{display:none;}
  .hamburger{display:inline-flex;}
  .page-head__grid{grid-template-columns:1fr;gap:32px;}
  .page-head__media{order:-1;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .support-card{position:static;}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .footer__grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section{padding:60px 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .brand__text{font-size:16px;}
  .page-head{padding:36px 0 0;}
  .page-head__lead{font-size:16px;}
  .filter-bar{padding:18px;margin-top:36px;}
  .faq-q{font-size:17px;gap:16px;}
  .faq-a__inner{padding-right:24px;}
  .cat-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .cta-stats{grid-template-columns:1fr;gap:18px;}
  .cta-stats div{padding:0;border-left:0;}
  .footer__grid{grid-template-columns:1fr;gap:32px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
}