/* roulang page: index */
:root{
  --green:#0E5B4A;
  --green-deep:#073A2F;
  --green-soft:#2C7A66;
  --orange:#F0663C;
  --orange-soft:#FF8A63;
  --ink:#101413;
  --muted:#5C6B66;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --line:#E3E1D9;
  --mint:#E8F1EC;
  --footer-bg:#0F1513;
  --r-sm:6px;
  --r-md:12px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(16,20,19,.05);
  --sh-2:0 10px 26px rgba(16,20,19,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--green);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (min-width:1280px){.wrap{max-width:1280px}}

/* Foundation 覆盖 */
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.foundation-clean a{color:var(--green)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:700;line-height:1.2;cursor:pointer;
  border:1.5px solid transparent;text-align:center;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.btn--primary{background:var(--orange);color:var(--ink);box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--orange-soft);color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-1px)}
.btn--light{background:#FFFFFF;color:var(--green-deep);border-color:#FFFFFF}
.btn--light:hover{background:var(--mint);color:var(--green-deep);transform:translateY(-1px)}
.btn--outline-light{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.62)}
.btn--outline-light:hover{background:rgba(255,255,255,.12);color:#FFFFFF;border-color:#FFFFFF;transform:translateY(-1px)}
.btn--sm{min-height:44px;padding:10px 20px;font-size:15px}

/* 标签 / 徽章 */
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--r-sm);
  background:var(--mint);color:var(--green);font-size:13px;font-weight:700;line-height:1.5;
}
.badge--solid{background:var(--green);color:#FFFFFF}
.eyebrow{
  display:inline-block;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(14,91,74,.08);color:var(--green);
  font-size:13px;font-weight:700;letter-spacing:.04em;
}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(150deg,var(--green) 0%,var(--green-deep) 100%);
  color:#FFFFFF;font-size:17px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand__text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand__text{color:var(--green)}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:var(--r-sm);
  color:var(--muted);font-size:15px;font-weight:600;
}
.nav-link:hover{color:var(--green);background:rgba(14,91,74,.06)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;
  border-radius:var(--r-pill);background:var(--orange);
}
.header__cta{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FFFFFF;cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动端抽屉 */
.mobile-panel{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);z-index:80;
  background:var(--card);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .24s var(--ease);
  padding:24px 22px 32px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-16px 0 40px rgba(16,20,19,.14);
  overflow-y:auto;
}
.mobile-panel.is-open{transform:translateX(0)}
.mobile-panel__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.mobile-panel__close{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#FFFFFF;font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.mobile-panel__link{
  display:block;padding:14px 14px;border-radius:var(--r-md);
  color:var(--ink);font-size:16px;font-weight:600;border:1px solid transparent;
}
.mobile-panel__link:hover{background:var(--mint);color:var(--green)}
.mobile-panel__link.is-active{background:var(--mint);color:var(--green);border-color:rgba(14,91,74,.2)}
.mask{
  position:fixed;inset:0;background:rgba(16,20,19,.42);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.mask.is-open{opacity:1;visibility:visible}
body.is-locked{overflow:hidden}

/* 移动端底部下载条 */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:65;
  height:56px;padding:6px 12px;gap:10px;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -4px 18px rgba(16,20,19,.08);
}
.mobile-bar .btn{flex:1 1 0;min-height:44px;padding:8px 12px;font-size:15px}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 0;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(240,102,60,.14),transparent 62%),
    radial-gradient(760px 420px at 4% 8%,rgba(14,91,74,.10),transparent 60%),
    var(--bg);
}
.hero__grid{align-items:center}
.hero__copy{padding-bottom:56px}
.hero h1{
  font-size:clamp(30px,4.2vw,54px);
  line-height:1.16;
  margin:20px 0 18px;
  max-width:16em;
}
.hero__sub{
  font-size:17px;line-height:1.8;color:var(--muted);max-width:34em;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust{
  display:flex;flex-wrap:wrap;gap:0;margin-top:36px;
  border-top:1px solid var(--line);padding-top:20px;
}
.trust__item{
  padding:0 20px 0 0;margin-right:20px;border-right:1px solid var(--line);
  min-width:112px;
}
.trust__item:last-child{border-right:none;margin-right:0;padding-right:0}
.trust__label{font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.trust__value{font-size:14px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.hero__figure{position:relative;padding-bottom:56px}
.hero__figure img{
  width:100%;border-radius:var(--r-lg);
  border:1px solid rgba(14,91,74,.16);
  box-shadow:var(--sh-2);
  aspect-ratio:4/3;object-fit:cover;
}
.hero__tag{
  position:absolute;left:24px;bottom:78px;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;font-weight:700;color:var(--green);
  box-shadow:var(--sh-1);
}

/* 板块 */
.section{padding:96px 0}
.section--mint{background:var(--mint)}
.section--soft{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section__head{max-width:760px;margin-bottom:48px}
.section__head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  max-width:none;flex-wrap:wrap;
}
.section__kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:800;color:var(--green);letter-spacing:.1em;
}
.section__kicker::before{content:"";width:14px;height:14px;border-radius:4px;background:var(--orange)}
.section h2{font-size:clamp(24px,3vw,38px);margin:14px 0 14px}
.section__lead{color:var(--muted);font-size:16px;line-height:1.85}
.section__more{
  font-size:15px;font-weight:700;color:var(--green);
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
  border-bottom:2px solid transparent;
}
.section__more:hover{color:var(--orange);border-bottom-color:var(--orange)}

/* 要点 */
.points{margin-top:-12px}
.point{
  display:flex;gap:18px;align-items:flex-start;
  padding:26px 24px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--card);box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  height:100%;
}
.point:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,91,74,.28)}
.point__num{
  flex:0 0 auto;width:52px;height:52px;border-radius:var(--r-sm);
  border:2px solid var(--green);color:var(--green);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;
}
.point h3{font-size:19px;margin-bottom:8px}
.point p{color:var(--muted);font-size:15px;line-height:1.8}
.points__cell{margin-bottom:24px}

/* 截图画廊 */
.shots-wrap{position:relative}
.shots{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 18px;scrollbar-width:none;
}
.shots::-webkit-scrollbar{display:none}
.shot{flex:0 0 262px;scroll-snap-align:start}
.shot__frame{
  aspect-ratio:9/19.5;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(14,91,74,.16);background:#FFFFFF;
  box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.shot:hover .shot__frame{transform:translateY(-4px);box-shadow:var(--sh-2)}
.shot__frame img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease)}
.shot:hover .shot__frame img{transform:scale(1.03)}
.shot__cap{margin-top:12px;font-size:14px;font-weight:700;color:var(--ink)}
.shots__bar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:8px}
.shots__track{flex:1 1 auto;height:4px;border-radius:var(--r-pill);background:rgba(16,20,19,.12);overflow:hidden}
.shots__thumb{display:block;height:100%;width:32%;border-radius:var(--r-pill);background:var(--orange);transition:transform .24s var(--ease),width .24s var(--ease)}
.shots__arrows{display:flex;gap:10px}
.arrow{
  width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#FFFFFF;color:var(--ink);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  transition:background-color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.arrow:hover{background:var(--mint);border-color:var(--green);color:var(--green);transform:translateY(-1px)}

/* 系统要求 */
.spec__card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;
}
.spec__head{
  background:var(--mint);padding:18px 22px;
  display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);
}
.spec__head h3{font-size:18px;margin:0}
.spec__rows{padding:6px 22px 18px}
.spec__row{
  display:flex;align-items:baseline;justify-content:space-between;gap:18px;
  padding:15px 0;border-bottom:1px solid var(--line);
}
.spec__row:last-child{border-bottom:none}
.spec__k{font-size:14px;color:var(--muted);flex:0 0 auto}
.spec__v{font-size:15px;font-weight:700;color:var(--ink);text-align:right}
.spec__note{margin-top:24px;color:var(--muted);font-size:14px}

/* 评价墙 */
.voices{columns:3;column-gap:24px}
.voice{
  break-inside:avoid;margin-bottom:24px;padding:24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.voice:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.voice__top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.voice__avatar{
  width:40px;height:40px;border-radius:50%;background:var(--green);color:#FFFFFF;
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:0 0 auto;
}
.voice__name{font-size:15px;font-weight:700;color:var(--ink);line-height:1.4}
.voice__device{font-size:12px;color:var(--muted)}
.voice__stars{color:var(--orange);font-size:13px;letter-spacing:2px;margin-bottom:8px}
.voice p{color:var(--muted);font-size:15px;line-height:1.8}

/* 资讯卡 */
.news-grid{margin-top:-12px}
.news-cell{margin-bottom:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,91,74,.32);color:inherit}
.news-card__cover{aspect-ratio:16/10;overflow:hidden;background:var(--mint)}
.news-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease)}
.news-card:hover .news-card__cover img{transform:scale(1.03)}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.news-card__title{
  font-size:18px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  color:var(--muted);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__foot{margin-top:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-empty{
  text-align:center;padding:56px 24px;background:var(--card);
  border:1px dashed var(--line);border-radius:var(--r-md);
}
.news-empty p{color:var(--muted);margin-bottom:18px}

/* 下载 CTA */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--green-deep);border-radius:var(--r-lg);
  padding:64px;color:#FFFFFF;
}
.cta-block::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.7;
}
.cta-block__inner{position:relative;z-index:1;max-width:720px}
.cta-block h2{color:#FFFFFF;font-size:clamp(24px,3vw,36px);margin-bottom:14px}
.cta-block p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.85}
.cta-block__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-block__note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.62);font-variant-numeric:tabular-nums}

/* FAQ */
.faq{max-width:820px;margin:0 auto;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;
  padding:22px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;min-height:44px;
  transition:color .16s var(--ease);
}
.faq__q:hover{color:var(--green)}
.faq__icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-sm);
  background:var(--mint);color:var(--green);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;line-height:1;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);background:var(--orange);color:var(--ink)}
.faq__a{padding:0 4px 24px;color:var(--muted);font-size:16px;line-height:1.85;display:none}
.faq__item.is-open .faq__a{display:block}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__brand .brand__mark{background:linear-gradient(150deg,var(--orange),#D64E28);color:var(--ink)}
.footer__brand span{color:#FFFFFF;font-size:17px;font-weight:800}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:26em}
.footer__title{font-size:13px;font-weight:700;color:rgba(232,241,236,.72);letter-spacing:.1em;margin-bottom:16px}
.footer__link{display:block;padding:8px 0;color:rgba(255,255,255,.76);font-size:15px;min-height:40px}
.footer__link:hover{color:var(--orange)}
.footer__note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer__bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer__bottom a{color:rgba(255,255,255,.6)}
.footer__bottom a:hover{color:var(--orange)}

/* 进场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1023px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .header__cta .btn{display:none}
  .mobile-bar{display:flex}
  body{padding-bottom:56px}
  .section{padding:72px 0}
  .hero{padding-top:48px}
  .hero__copy{padding-bottom:32px}
  .hero__figure{padding-bottom:32px}
  .cta-block{padding:44px 32px}
  .voices{columns:2}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:56px;margin-top:72px}
}
@media (max-width:639px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .header__inner{min-height:64px;gap:12px}
  .brand__text{font-size:15px;white-space:normal;line-height:1.25;max-width:9em}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px}
  .trust{gap:16px 0}
  .trust__item{min-width:50%;border-right:none;padding-right:0;margin-right:0}
  .section{padding:56px 0}
  .section__head{margin-bottom:32px}
  .voices{columns:1}
  .cta-block{padding:32px 22px;border-radius:var(--r-md)}
  .cta-block__actions .btn{width:100%}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .point{padding:20px 18px;gap:14px}
  .point__num{width:44px;height:44px;font-size:16px}
  .shot{flex-basis:220px}
  .faq__q{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --green:#0E5B4A;
  --green-dark:#073A2F;
  --orange:#F0663C;
  --ink:#101413;
  --sub:#5C6B66;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --line:#E3E1D9;
  --soft:#E8F1EC;
  --radius-s:6px;
  --radius-m:12px;
  --radius-l:20px;
  --shadow-1:0 2px 10px rgba(16,20,19,.05);
  --shadow-2:0 10px 26px rgba(16,20,19,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:1200px;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,h5{
  margin:0;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
  color:var(--ink);
}
p{margin:0 0 16px;}
a{color:var(--green);text-decoration:none;transition:color 160ms var(--ease),background-color 160ms var(--ease),border-color 160ms var(--ease);}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px;}

/* ---------- 容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){
  .wrap{max-width:1280px;}
}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,246,242,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,20,19,.08);}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--green);
  color:#fff;
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:18px;
  line-height:1;
  box-shadow:0 4px 12px rgba(14,91,74,.28);
  flex-shrink:0;
}
.brand__text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.02em;
  white-space:nowrap;
}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
  margin-right:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  border-radius:8px;
  font-size:15px;
  font-weight:600;
  color:var(--sub);
  white-space:nowrap;
}
.nav-link:hover{color:var(--green);background:var(--soft);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:3px;
  height:3px;
  border-radius:3px;
  background:var(--orange);
}
.header__cta{
  display:flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform 160ms var(--ease),box-shadow 160ms var(--ease),background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),filter 160ms var(--ease);
  text-align:center;
}
.btn--sm{min-height:42px;padding:10px 20px;font-size:14px;}
.btn--primary{
  background:var(--orange);
  color:var(--ink);
  box-shadow:0 6px 16px rgba(240,102,60,.28);
}
.btn--primary:hover{
  color:var(--ink);
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 12px 24px rgba(240,102,60,.32);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(240,102,60,.24);}
.btn--ghost{
  background:transparent;
  color:var(--ink);
  border-color:rgba(16,20,19,.55);
}
.btn--ghost:hover{
  color:var(--green);
  border-color:var(--green);
  background:var(--soft);
}
.btn--light{
  background:#fff;
  color:var(--green-dark);
}
.btn--light:hover{color:var(--green-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.66);
}
.btn--outline-light:hover{
  color:#fff;
  border-color:#fff;
  background:rgba(255,255,255,.1);
}
.btn--block{width:100%;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--radius-s);
  background:var(--soft);
  color:var(--green);
  font-size:13px;
  font-weight:700;
  line-height:1.6;
}
.badge--solid{background:var(--green);color:#fff;}

/* ---------- 移动端抽屉 ---------- */
.mobile-nav{
  position:fixed;
  top:73px;
  left:0;
  right:0;
  z-index:55;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:12px 24px 24px;
  display:none;
  box-shadow:0 18px 32px rgba(16,20,19,.14);
  max-height:calc(100vh - 73px);
  overflow-y:auto;
}
.mobile-nav.is-open{display:block;animation:drawerIn 240ms var(--ease);}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:none;}}
.m-nav-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  font-weight:600;
  font-size:15px;
}
.m-nav-link::after{content:"›";color:var(--sub);font-size:18px;line-height:1;}
.m-nav-link:hover{color:var(--green);}
.mobile-nav .btn{margin-top:18px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  position:relative;
  cursor:pointer;
  padding:0;
}
.nav-toggle span{
  position:absolute;
  left:13px;
  top:50%;
  margin-top:-1px;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:background-color 160ms var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform 240ms var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--sub);line-height:1.7;}
.breadcrumb a{color:var(--sub);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{margin:0 8px;opacity:.55;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- 文章布局 ---------- */
.article-wrap{padding-bottom:24px;}
.article-layout{margin-left:-12px;margin-right:-12px;padding-top:20px;}
.article-layout > .cell{padding-left:12px;padding-right:12px;}
.article-main{max-width:820px;}
.article-head{
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
  margin-bottom:32px;
}
.article-title{
  font-size:clamp(26px,3.3vw,38px);
  line-height:1.26;
  margin:16px 0 18px;
  max-width:780px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--sub);
}
.article-meta .dot{opacity:.5;}
.article-meta i{font-size:12px;color:var(--green);}

/* ---------- 正文 ---------- */
.article-body{
  font-size:17px;
  line-height:1.9;
  color:#1b201e;
  word-break:break-word;
}
.article-body h2{
  position:relative;
  margin:44px 0 16px;
  padding-left:18px;
  font-size:24px;
  line-height:1.35;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.3em;
  width:6px;
  height:.95em;
  border-radius:2px;
  background:var(--orange);
}
.article-body h3{
  margin:30px 0 12px;
  font-size:19px;
  line-height:1.4;
}
.article-body h4{
  margin:24px 0 10px;
  font-size:17px;
}
.article-body p{margin:0 0 18px;}
.article-body ul,
.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:26px 0;
  padding:16px 20px;
  border-left:3px solid var(--orange);
  background:var(--soft);
  border-radius:0 var(--radius-m) var(--radius-m) 0;
  color:#24403a;
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-m);margin:24px auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:26px 0;}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--sub);text-align:center;line-height:1.7;}
.article-body a{color:var(--green);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--orange);}
.article-body code{
  padding:2px 6px;
  background:var(--soft);
  border-radius:4px;
  font-size:.9em;
  color:var(--green-dark);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:10px 12px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--soft);color:var(--green-dark);font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  padding:56px 24px;
  text-align:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
}
.empty-state i{font-size:34px;color:var(--green);margin-bottom:16px;display:block;}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--sub);font-size:15px;margin-bottom:22px;}

/* ---------- 文末标签 ---------- */
.article-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.article-foot .label{font-size:13px;color:var(--sub);margin-right:4px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  font-weight:600;
  color:var(--green);
}
.tag:hover{border-color:var(--green);background:var(--soft);color:var(--green);}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:24px;
}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(20px,2.2vw,26px);
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.24em;
  width:6px;
  height:1em;
  border-radius:2px;
  background:var(--orange);
}
.section-head .more{font-size:14px;font-weight:700;color:var(--green);}
.section-head .more:hover{color:var(--orange);}
.related__grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
  color:var(--ink);
  height:100%;
}
.post-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:rgba(14,91,74,.32);
  color:var(--ink);
}
.post-card__media{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--soft);
}
.post-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 420ms var(--ease);
}
.post-card:hover .post-card__media img{transform:scale(1.03);}
.post-card__body{padding:18px 18px 20px;}
.post-card__title{
  font-size:17px;
  font-weight:800;
  line-height:1.45;
  margin-bottom:8px;
}
.post-card__text{
  font-size:14px;
  line-height:1.7;
  color:var(--sub);
  margin:0;
}
.post-card__foot{
  margin-top:12px;
  font-size:12.5px;
  color:var(--sub);
  display:flex;
  align-items:center;
  gap:8px;
}
.post-card__foot i{color:var(--green);font-size:12px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;align-self:start;}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:20px;
  margin-bottom:20px;
}
.side-card--download{
  background:var(--soft);
  border-color:#cfe3da;
}
.side-card__title{
  font-size:16px;
  font-weight:800;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card__title i{color:var(--green);font-size:15px;}
.side-list{list-style:none;margin:0 0 16px;padding:0;}
.side-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--sub);
  padding:9px 0;
  border-bottom:1px dashed rgba(14,91,74,.2);
}
.side-list li:last-child{border-bottom:0;}
.side-list b{color:var(--ink);font-weight:700;}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.side-links a:last-child{border-bottom:0;padding-bottom:0;}
.side-links a i{color:var(--green);font-size:12px;}
.side-links a:hover{color:var(--green);}
.side-note{font-size:12.5px;color:var(--sub);line-height:1.7;margin:0;}

/* ---------- CTA 深色区 ---------- */
.cta-band{margin-top:80px;}
.cta-band__inner{
  position:relative;
  overflow:hidden;
  background:var(--green-dark);
  border-radius:var(--radius-l);
  padding:56px 48px;
  color:#fff;
}
.cta-band__inner::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.cta-band__body{position:relative;z-index:1;max-width:640px;}
.cta-band__body h2{
  color:#fff;
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  margin-bottom:14px;
}
.cta-band__body p{
  color:rgba(255,255,255,.78);
  font-size:15.5px;
  line-height:1.85;
  margin-bottom:26px;
}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band__meta{
  position:relative;
  z-index:1;
  margin-top:26px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
}

/* ---------- FAQ ---------- */
.faq{padding:80px 0 0;}
.faq__head{text-align:center;max-width:720px;margin:0 auto 32px;}
.faq__head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.faq__head p{color:var(--sub);font-size:15px;margin:0;}
.faq__list{max-width:820px;margin:0 auto;border-top:1px solid var(--line);}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item summary{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  padding:20px 4px;
  font-size:17px;
  font-weight:700;
  cursor:pointer;
  list-style:none;
  line-height:1.6;
  transition:color 160ms var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{color:var(--green);}
.faq__item summary::after{
  content:"+";
  flex-shrink:0;
  font-size:22px;
  line-height:1;
  color:var(--green);
  transition:transform 240ms var(--ease);
}
.faq__item[open] summary::after{transform:rotate(45deg);}
.faq__item p{
  padding:0 4px 20px;
  margin:0;
  color:var(--sub);
  font-size:15.5px;
  line-height:1.85;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0F1513;
  color:rgba(255,255,255,.72);
  padding:64px 0 24px;
  margin-top:96px;
}
.footer__grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer__brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:16px;
  margin-bottom:16px;
}
.footer__brand .brand__mark{box-shadow:none;}
.footer__desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
  max-width:320px;
  margin:0;
}
.footer__title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:#7FC7AE;
  margin-bottom:14px;
}
.footer__link{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.66);
  padding:6px 0;
}
.footer__link:hover{color:var(--orange);}
.footer__note{
  font-size:14px;
  line-height:1.95;
  color:rgba(255,255,255,.6);
  margin:0;
}
.footer__bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
  line-height:1.7;
}

/* ---------- 进场 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease);
}
.js [data-reveal].is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .article-side{position:static;margin-top:36px;}
  .article-main{max-width:none;}
  .related__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band__inner{padding:44px 32px;}
}
@media (max-width:960px){
  .nav-desktop{display:none;}
  .nav-toggle{display:block;}
  .header__cta .btn--sm{display:none;}
  .header__inner{min-height:64px;}
  .mobile-nav{top:65px;max-height:calc(100vh - 65px);}
  .brand__text{font-size:16px;}
}
@media (max-width:680px){
  .wrap{padding:0 18px;}
  .article-layout{margin-left:0;margin-right:0;}
  .article-layout > .cell{padding-left:0;padding-right:0;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .related__grid{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .cta-band__inner{padding:34px 22px;border-radius:16px;}
  .cta-band__actions .btn{width:100%;}
  .faq{padding-top:56px;}
  .faq__item summary{font-size:16px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .breadcrumb{font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --green:#0E5B4A;
  --green-deep:#073A2F;
  --green-soft:#E8F1EC;
  --orange:#F0663C;
  --orange-hi:#F4794F;
  --ink:#101413;
  --sub:#5C6B66;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --line:#E3E1D9;
  --footer-bg:#0F1513;
  --r-sm:6px;
  --r-md:12px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(16,20,19,.05);
  --sh-2:0 10px 26px rgba(16,20,19,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--orange);
  outline-offset:2px;
  border-radius:6px;
}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){
  .wrap{max-width:1280px}
}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.brand__mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--green);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:17px;
  font-weight:800;
  line-height:1;
  flex:none;
}
.brand__text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  white-space:nowrap;
}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--sub);
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.nav-link:hover{color:var(--green);background:var(--green-soft)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:-1px;
  height:3px;
  border-radius:2px;
  background:var(--orange);
}
.header__cta{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1.5px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  transition:border-color .16s var(--ease),transform .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--green)}
.nav-toggle span{
  display:block;
  position:relative;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.mobile-nav{
  display:none;
  position:fixed;
  top:72px;
  left:0;
  right:0;
  z-index:90;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-2);
  padding:8px 24px 20px;
}
.mobile-nav.is-open{display:block}
.mobile-nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  font-weight:600;
  color:var(--sub);
  transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.mobile-nav a:hover{color:var(--green);padding-left:4px}
.mobile-nav a.is-active{color:var(--ink)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav .btn{margin-top:14px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  border:1.5px solid transparent;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .16s var(--ease),background-color .16s var(--ease),
             color .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.btn--primary{
  background:var(--orange);
  color:var(--ink);
  box-shadow:0 2px 10px rgba(240,102,60,.28);
}
.btn--primary:hover{
  background:var(--orange-hi);
  transform:translateY(-1px);
  box-shadow:0 10px 26px rgba(240,102,60,.30);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 2px 10px rgba(240,102,60,.24)}
.btn--ghost{
  background:transparent;
  border-color:var(--ink);
  color:var(--ink);
}
.btn--ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(0)}
.btn--light{
  background:#fff;
  color:var(--green-deep);
  border-color:transparent;
}
.btn--light:hover{background:#F2F7F4;transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,0,0,.18)}
.btn--outline-light{
  background:transparent;
  border-color:rgba(255,255,255,.6);
  color:#fff;
}
.btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)}
.btn--sm{min-height:42px;padding:10px 20px;font-size:14px}

/* ---------- 通用标签 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 10px;
  border-radius:var(--r-sm);
  background:var(--green-soft);
  color:var(--green);
  font-size:13px;
  font-weight:700;
  line-height:1.5;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--orange);
  flex:none;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:var(--r-sm);
  background:var(--green-soft);
  color:var(--green);
  font-size:13px;
  font-weight:700;
  line-height:1.5;
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:22px 0 8px;
  font-size:13px;
  color:var(--sub);
}
.crumbs a{color:var(--sub);transition:color .16s var(--ease)}
.crumbs a:hover{color:var(--green)}
.crumbs .sep{color:#BDC5C1}
.crumbs .current{color:var(--ink);font-weight:600}

/* ---------- 分类页头图 ---------- */
.page-hero{
  position:relative;
  padding:8px 0 72px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-140px;
  right:-120px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(14,91,74,.12),rgba(14,91,74,0) 68%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:-160px;
  left:-100px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(240,102,60,.10),rgba(240,102,60,0) 70%);
  pointer-events:none;
}
.hero-row{position:relative;z-index:1;margin-top:16px}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:var(--green-soft);
}
.hero-media img{
  width:100%;
  aspect-ratio:4 / 3;
  object-fit:cover;
  transition:transform .42s var(--ease);
}
.hero-media:hover img{transform:scale(1.03)}
.hero-media__badge{
  position:absolute;
  left:16px;
  bottom:16px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);
  color:var(--green-deep);
  font-size:13px;
  font-weight:700;
  box-shadow:var(--sh-1);
}
.hero-copy h1{
  margin:16px 0 14px;
  font-size:clamp(30px,3.2vw,38px);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.02em;
}
.hero-lead{
  max-width:560px;
  font-size:16.5px;
  line-height:1.8;
  color:var(--sub);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  margin-top:32px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-facts li{
  padding:0 22px;
  border-left:1px solid var(--line);
  line-height:1.5;
}
.hero-facts li:first-child{padding-left:0;border-left:0}
.hero-facts b{
  display:block;
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:4px;
}
.hero-facts span{
  display:block;
  font-size:13px;
  color:var(--sub);
  font-variant-numeric:tabular-nums;
}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--soft{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{
  display:flex;
  align-items:center;
  gap:12px;
  margin:14px 0 12px;
  font-size:clamp(23px,2.5vw,30px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.02em;
}
.section-head h2::before{
  content:"";
  flex:none;
  width:8px;
  height:26px;
  border-radius:2px;
  background:var(--orange);
}
.section-head p{
  font-size:16px;
  line-height:1.8;
  color:var(--sub);
}

/* ---------- 图文交替 ---------- */
.feature-row{
  align-items:center;
  margin-bottom:72px;
}
.feature-row:last-child{margin-bottom:0}
.media-card{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background:var(--green-soft);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.media-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:rgba(14,91,74,.3);
}
.media-card img{
  width:100%;
  aspect-ratio:16 / 11;
  object-fit:cover;
  transition:transform .42s var(--ease);
}
.media-card:hover img{transform:scale(1.03)}
.feature-text h3{
  margin:16px 0 12px;
  font-size:clamp(21px,2.2vw,26px);
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.02em;
}
.feature-text p{
  font-size:16px;
  line-height:1.85;
  color:var(--sub);
}
.check-list{
  display:grid;
  gap:12px;
  margin-top:20px;
}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:15.5px;
  line-height:1.7;
  color:var(--ink);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--green);
}
.check-list li span{color:var(--sub)}

/* ---------- 模块索引网格 ---------- */
.module-grid > .cell{margin-bottom:24px}
.module-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  height:100%;
  padding:26px 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.module-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:rgba(14,91,74,.3);
}
.module-card .num{
  font-size:13px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--orange);
  font-variant-numeric:tabular-nums;
}
.module-card h3{
  font-size:18px;
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
}
.module-card p{
  font-size:15px;
  line-height:1.75;
  color:var(--sub);
}

/* ---------- 三格要点横条 ---------- */
.pillar-bar{
  background:var(--green-soft);
  border:1px solid rgba(14,91,74,.12);
  border-radius:var(--r-lg);
  padding:44px 40px;
}
.pillar{
  display:flex;
  align-items:flex-start;
  gap:16px;
  height:100%;
}
.pillar__num{
  flex:none;
  font-size:30px;
  font-weight:800;
  line-height:1;
  color:var(--green);
  font-variant-numeric:tabular-nums;
}
.pillar h3{
  font-size:17px;
  font-weight:800;
  margin-bottom:6px;
}
.pillar p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--sub);
}

/* ---------- FAQ ---------- */
.faq{
  max-width:840px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 26px;
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  cursor:pointer;
  list-style:none;
  transition:background-color .16s var(--ease),color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--green-soft);color:var(--green)}
.faq-item summary::after{
  content:"";
  flex:none;
  width:14px;
  height:14px;
  background:
    linear-gradient(var(--green),var(--green)) center / 14px 2px no-repeat,
    linear-gradient(var(--green),var(--green)) center / 2px 14px no-repeat;
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{
  padding:0 26px 24px;
  max-width:740px;
  font-size:16px;
  line-height:1.85;
  color:var(--sub);
}

/* ---------- 下载 CTA ---------- */
.cta-section{padding:0 0 96px}
.cta-band{
  position:relative;
  overflow:hidden;
  padding:64px;
  border-radius:var(--r-lg);
  color:#fff;
  background-color:var(--green-deep);
  background-image:
    linear-gradient(120deg,rgba(7,58,47,.96),rgba(7,58,47,.84)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.cta-band h2{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.02em;
  margin-bottom:14px;
  max-width:640px;
}
.cta-band p{
  max-width:620px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  margin-bottom:30px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cta-meta{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(255,255,255,.66);
}
.cta-meta b{
  display:block;
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:3px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--footer-bg);
  color:#fff;
  padding:72px 0 26px;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
}
.footer__brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  margin-bottom:16px;
}
.footer__brand .brand__mark{background:var(--green)}
.footer__desc{
  max-width:320px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
}
.footer__title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:rgba(255,255,255,.45);
  margin-bottom:16px;
}
.footer__link{
  display:block;
  padding:6px 0;
  font-size:14.5px;
  color:rgba(255,255,255,.78);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer__link:hover{color:var(--orange);transform:translateX(2px)}
.footer__note{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.62);
}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ---------- 进场动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .page-hero{padding-bottom:56px}
  .hero-media{margin-bottom:32px}
  .feature-row{margin-bottom:56px}
  .feature-row .media-card{margin-bottom:28px}
  .pillar-bar{padding:34px 28px}
  .pillar{margin-bottom:26px}
  .pillar-bar .cell:last-child .pillar{margin-bottom:0}
  .cta-band{padding:48px 36px}
  .cta-section{padding-bottom:72px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:639px){
  .wrap{padding:0 18px}
  .header__inner{height:64px;gap:12px}
  .mobile-nav{top:64px}
  .brand__text{font-size:15px}
  .brand__mark{width:32px;height:32px;font-size:15px;border-radius:9px}
  .header__cta .btn--sm{padding:9px 14px;font-size:13px;min-height:38px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .page-hero{padding-bottom:48px}
  .hero-facts{flex-direction:column;gap:14px;margin-top:26px}
  .hero-facts li{padding:0;border-left:0}
  .hero-actions .btn{flex:1 1 100%}
  .pillar__num{font-size:24px}
  .faq-item summary{padding:18px 18px;font-size:15.5px;gap:12px}
  .faq-answer{padding:0 18px 20px;font-size:15px}
  .cta-band{padding:36px 22px;border-radius:16px}
  .cta-actions .btn{flex:1 1 100%}
  .cta-meta{gap:18px}
  .footer__grid{grid-template-columns:1fr;gap:30px}
  .footer__bottom{flex-direction:column;gap:6px;margin-top:36px}
  .site-footer{padding:52px 0 22px}
}

/* roulang page: category2 */
:root{
  --green:#0E5B4A;
  --green-deep:#073A2F;
  --orange:#F0663C;
  --ink:#101413;
  --muted:#5C6B66;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --line:#E3E1D9;
  --green-soft:#E8F1EC;
  --footer-bg:#0F1513;
  --r-sm:6px;
  --r-md:12px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 2px 10px rgba(16,20,19,.05);
  --sh-2:0 10px 26px rgba(16,20,19,.10);
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body.menu-open{overflow:hidden;}
a{color:var(--green);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--orange);}
a:focus-visible,button:focus-visible{outline:2px solid var(--orange);outline-offset:2px;}
img{max-width:100%;display:block;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
@media (min-width:1280px){ .wrap{max-width:1280px;} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;line-height:1;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--orange);color:var(--ink);box-shadow:var(--sh-1);}
.btn--primary:hover{background:#F37953;color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn--ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-1px);}
.btn--on-dark{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.62);}
.btn--on-dark:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;transform:translateY(-1px);}
.btn--sm{min-height:44px;padding:10px 20px;font-size:14px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--green-soft);color:var(--green);
  font-size:13px;font-weight:700;line-height:1.5;
  padding:4px 10px;border-radius:var(--r-sm);
}
.badge--solid{background:var(--green);color:#fff;}
.badge--orange{background:rgba(240,102,60,.14);color:#C1441E;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--green);color:#fff;font-size:19px;font-weight:800;
  letter-spacing:0;flex:none;
}
.brand__text{font-size:18px;font-weight:800;letter-spacing:-.01em;line-height:1.2;}
.nav-desktop{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:10px 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--muted);
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.nav-link:hover{color:var(--green);background:var(--green-soft);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  border-radius:3px;background:var(--orange);
}
.header__cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;position:relative;align-items:center;justify-content:center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transform:translateX(-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:50%;transform:translateX(-50%);}
.nav-toggle span::after{content:"";top:6px;left:50%;transform:translateX(-50%);}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}
.mobile-nav{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:12px 24px 20px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav .nav-link{display:flex;width:100%;padding:14px 12px;font-size:16px;border-radius:var(--r-md);}
.mobile-nav .nav-link.is-active{background:var(--green-soft);color:var(--green);}
.mobile-nav .nav-link.is-active::after{display:none;}
.mobile-nav .btn{width:100%;margin-top:10px;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--green-deep);
  background-image:linear-gradient(115deg,rgba(7,58,47,.94) 0%,rgba(14,91,74,.86) 58%,rgba(7,58,47,.72) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;
  padding:56px 0 64px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:24px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--orange);}
.crumb span[aria-current]{color:rgba(255,255,255,.58);}
.page-hero h1{
  font-size:clamp(30px,3.6vw,38px);
  line-height:1.25;font-weight:800;letter-spacing:-.02em;
  max-width:860px;color:#fff;
}
.page-hero__lead{
  margin-top:18px;max-width:720px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);
}
.page-hero__meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.page-hero .badge{background:rgba(255,255,255,.14);color:#fff;}
.page-hero .badge--orange{background:rgba(240,102,60,.9);color:#1A0B06;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--soft{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  position:relative;padding-left:18px;
  font-size:clamp(24px,2.6vw,30px);line-height:1.3;font-weight:800;letter-spacing:-.02em;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:6px;height:.92em;border-radius:3px;background:var(--orange);
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.8;}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--green);margin-bottom:12px;text-transform:uppercase;}

/* ---------- 安装前检查 ---------- */
.check-grid{margin-bottom:-24px;}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);height:100%;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,91,74,.3);}
.check-card__icon{
  width:44px;height:44px;border-radius:var(--r-md);background:var(--green-soft);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.check-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.check-card p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- 时间线 ---------- */
.steps{position:relative;max-width:880px;}
.steps::before{
  content:"";position:absolute;left:43px;top:22px;bottom:26px;width:1px;background:var(--line);
}
.step{position:relative;display:grid;grid-template-columns:88px 1fr;gap:24px;padding-bottom:44px;}
.step:last-child{padding-bottom:0;}
.step__num{
  font-size:52px;line-height:1;font-weight:800;color:var(--green);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
  background:var(--bg);padding:6px 0;text-align:center;
}
.step__body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step__body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(14,91,74,.28);}
.step__body h3{font-size:19px;font-weight:700;margin-bottom:10px;letter-spacing:-.01em;}
.step__body p{font-size:15.5px;line-height:1.85;color:#2C3633;}
.step__hint{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  background:var(--green-soft);color:var(--green);font-size:13px;font-weight:600;
  padding:6px 12px;border-radius:var(--r-sm);line-height:1.6;
}

/* ---------- 规格对照 ---------- */
.spec-grid{margin-bottom:-24px;}
.spec-card{
  background:var(--green-soft);border:1px solid rgba(14,91,74,.16);border-radius:var(--r-lg);
  padding:32px 30px;height:100%;
}
.spec-card__head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap;}
.spec-card__head h3{font-size:20px;font-weight:800;letter-spacing:-.01em;}
.spec-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;}
.spec-row{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:15px 18px;border-bottom:1px solid var(--line);font-size:14.5px;
}
.spec-row:last-child{border-bottom:0;}
.spec-row dt,.spec-row .k{color:var(--muted);flex:none;}
.spec-row .v{color:var(--ink);font-weight:600;text-align:right;line-height:1.7;}
.spec-note{margin-top:16px;font-size:13.5px;color:#2F4A42;line-height:1.8;}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split__media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--green-soft);}
.split__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .42s var(--ease);}
.split__media:hover img{transform:scale(1.03);}
.split__body h2{font-size:clamp(23px,2.4vw,28px);line-height:1.35;font-weight:800;letter-spacing:-.02em;margin-bottom:16px;}
.split__body p{color:var(--muted);font-size:16px;line-height:1.85;margin-bottom:14px;}
.split__list{margin-top:20px;display:grid;gap:12px;}
.split__list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:#2C3633;}
.split__list li::before{
  content:"";flex:none;width:8px;height:8px;border-radius:2px;background:var(--orange);margin-top:9px;
}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item:last-child{border-bottom:0;}
.faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;
  padding:22px 26px;text-align:left;font-size:17px;font-weight:700;line-height:1.6;color:var(--ink);
  transition:background-color .16s var(--ease),color .16s var(--ease);
}
.faq__q:hover{background:var(--green-soft);color:var(--green);}
.faq__icon{
  position:relative;flex:none;width:22px;height:22px;border-radius:6px;background:var(--green-soft);
  transition:transform .24s var(--ease),background-color .24s var(--ease);
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--green);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__icon::before{width:11px;height:2px;}
.faq__icon::after{width:2px;height:11px;}
.faq__item.is-open .faq__icon{transform:rotate(45deg);background:var(--orange);}
.faq__item.is-open .faq__icon::before,
.faq__item.is-open .faq__icon::after{background:#fff;}
.faq__a{
  display:none;padding:0 26px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);
}
.faq__item.is-open .faq__a{display:block;}
.faq__a p+p{margin-top:12px;}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background-color:var(--green-deep);
  background-image:linear-gradient(120deg,rgba(7,58,47,.97),rgba(14,91,74,.9)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  border-radius:var(--r-lg);
  padding:64px 56px;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.5;
}
.cta-band__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.02em;}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.8);max-width:560px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-band__meta{font-size:13px;color:rgba(255,255,255,.62);margin-top:18px;font-variant-numeric:tabular-nums;}
.cta-facts{display:grid;gap:14px;}
.cta-fact{
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);
  padding:16px 18px;background:rgba(255,255,255,.05);
}
.cta-fact .k{font-size:12.5px;color:rgba(255,255,255,.6);letter-spacing:.04em;}
.cta-fact .v{font-size:18px;font-weight:700;color:#fff;margin-top:4px;font-variant-numeric:tabular-nums;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:88px;}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;}
.footer__brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:17px;font-weight:800;margin-bottom:16px;}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:330px;}
.footer__title{font-size:13px;font-weight:700;color:rgba(255,255,255,.9);letter-spacing:.06em;margin-bottom:16px;}
.footer__link{display:block;font-size:14px;color:rgba(255,255,255,.66);padding:6px 0;transition:color .16s var(--ease);}
.footer__link:hover{color:var(--orange);}
.footer__note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.footer__bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .header__inner{min-height:68px;}
  .section{padding:72px 0;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:48px 36px;}
  .cta-band__inner{grid-template-columns:1fr;gap:28px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px;}
  .page-hero{padding:44px 0 52px;}
}
@media (max-width:767px){
  .brand__text{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .step{grid-template-columns:56px 1fr;gap:16px;padding-bottom:32px;}
  .step__num{font-size:34px;}
  .steps::before{left:27px;top:16px;bottom:20px;}
  .step__body{padding:20px 18px;}
  .spec-card{padding:24px 20px;}
  .spec-row{flex-direction:column;gap:4px;align-items:flex-start;}
  .spec-row .v{text-align:left;}
  .faq__q{padding:18px 18px;font-size:15.5px;}
  .faq__a{padding:0 18px 20px;font-size:15px;}
  .cta-band{padding:36px 22px;border-radius:var(--r-md);}
  .footer__grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
  .page-hero h1{letter-spacing:-.01em;}
}
@media (max-width:519px){
  .wrap{padding:0 18px;}
  .header__cta .btn--primary{padding:10px 14px;font-size:13px;}
  .check-card{padding:20px 18px;}
  .step__body h3{font-size:17px;}
  .cta-band__actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --green:#0E5B4A;
  --green-deep:#073A2F;
  --orange:#F0663C;
  --ink:#101413;
  --muted:#5C6B66;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --line:#E3E1D9;
  --mint:#E8F1EC;
  --footer-bg:#0F1513;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --sh-1:0 2px 10px rgba(16,20,19,.05);
  --sh-2:0 10px 26px rgba(16,20,19,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --sp-7:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--green);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--orange);}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:var(--r-s);}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
@media (min-width:1280px){.wrap{max-width:1280px;}}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--orange);color:var(--ink);box-shadow:var(--sh-1);}
.btn--primary:hover{background:#ff7749;color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn--ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-1px);}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.72);color:#fff;}
.btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.10);color:#fff;transform:translateY(-1px);}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-s);
  background:var(--mint);color:var(--green);
  font-size:13px;font-weight:700;line-height:1.5;
}
.badge--solid{background:var(--green);color:#fff;}
.badge--orange{background:rgba(240,102,60,.14);color:#B8401C;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,246,242,.90);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;gap:32px;min-height:76px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:-.01em;}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:40px;height:40px;border-radius:12px;background:var(--green);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:800;flex:0 0 auto;
  box-shadow:0 2px 10px rgba(14,91,74,.24);
}
.brand__text{white-space:nowrap;}
.nav-desktop{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:6px 2px;
  color:var(--muted);font-size:15px;font-weight:600;
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;border-radius:3px;
  background:var(--orange);transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{transform:scaleX(1);}
.header__cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-m);
  border:1px solid var(--line);background:var(--card);cursor:pointer;
  align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:13px;}
.nav-toggle span::before{top:16px;}
.nav-toggle span::after{top:26px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:21px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:21px;transform:rotate(-45deg);}

/* 移动端抽屉 */
.mobile-nav{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:120;
  background:var(--card);border-left:1px solid var(--line);
  padding:28px 24px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(105%);transition:transform .28s var(--ease);
  box-shadow:-16px 0 40px rgba(16,20,19,.14);
  overflow-y:auto;
}
.mobile-nav.is-open{transform:translateX(0);}
.mobile-nav__title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;margin-bottom:8px;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--r-m);
  color:var(--ink);font-weight:600;font-size:16px;border:1px solid transparent;
}
.mobile-nav a:hover{background:var(--mint);color:var(--green);}
.mobile-nav a.is-active{background:var(--mint);color:var(--green);border-color:rgba(14,91,74,.16);}
.mobile-nav .btn{margin-top:16px;width:100%;}
.nav-mask{
  position:fixed;inset:0;background:rgba(16,20,19,.42);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.crumb{padding:24px 0 0;}
.crumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb__list a{color:var(--muted);}
.crumb__list a:hover{color:var(--green);}
.crumb__sep{color:#B9BEB9;}
.crumb__current{color:var(--green);font-weight:700;}

/* ---------- 页头 ---------- */
.page-hero{position:relative;padding:52px 0 64px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity:.9;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 380px at 12% 0%,rgba(232,241,236,.96) 0%,rgba(247,246,242,.92) 62%,rgba(247,246,242,.96) 100%),
    linear-gradient(180deg,rgba(247,246,242,.86) 0%,rgba(247,246,242,.98) 78%,var(--bg) 100%);
}
.page-hero__inner{max-width:860px;}
.page-hero h1{
  font-size:clamp(30px,3.6vw,38px);
  line-height:1.22;margin:18px 0 16px;
}
.page-hero__lead{font-size:17px;line-height:1.85;color:var(--muted);max-width:760px;margin-bottom:28px;}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid rgba(14,91,74,.18);padding-top:22px;max-width:760px;
}
.hero-facts__item{
  flex:1 1 0;min-width:150px;padding:0 20px;position:relative;
}
.hero-facts__item:first-child{padding-left:0;}
.hero-facts__item+.hero-facts__item::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:rgba(14,91,74,.16);
}
.hero-facts__label{display:block;font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.06em;margin-bottom:6px;}
.hero-facts__value{display:block;font-size:15px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sp-7) 0;}
.section--tight{padding:var(--sp-6) 0;}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--green);letter-spacing:.06em;margin-bottom:12px;
}
.section-head__eyebrow::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--orange);}
.section-head h2{font-size:clamp(24px,2.6vw,30px);line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;line-height:1.85;margin:0;}

/* ---------- 版本卡片 ---------- */
.release-grid{align-items:flex-start;}
.release-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.release-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,91,74,.30);}
.release-card__media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--mint);}
.release-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease);}
.release-card:hover .release-card__media img{transform:scale(1.03);}
.release-card__media .badge--solid{position:absolute;left:16px;top:16px;box-shadow:0 4px 14px rgba(7,58,47,.28);}
.release-card__body{padding:24px 24px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.release-card__body h3{font-size:19px;line-height:1.4;}
.release-card__body p{color:var(--muted);font-size:15px;line-height:1.85;margin:0;}
.release-card__meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.release-card__meta span{display:inline-flex;align-items:center;gap:6px;}
.release-card__meta i{color:var(--green);font-size:12px;}

/* ---------- 更新前检查 ---------- */
.notice-strip{
  background:var(--mint);border:1px solid rgba(14,91,74,.14);
  border-radius:var(--r-l);padding:40px 36px;
}
.notice-item{display:flex;gap:16px;align-items:flex-start;padding:6px 0;}
.notice-item__num{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-m);
  border:1.5px solid var(--green);color:var(--green);background:#fff;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.notice-item h3{font-size:17px;margin-bottom:6px;}
.notice-item p{margin:0;font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ---------- 系统对照 ---------- */
.spec-card{
  background:var(--mint);border:1px solid rgba(14,91,74,.14);
  border-radius:var(--r-l);padding:28px 26px;height:100%;
}
.spec-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.spec-card__head h3{font-size:19px;}
.spec-row{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:13px 0;border-bottom:1px solid rgba(14,91,74,.14);font-size:14.5px;
}
.spec-row:last-child{border-bottom:none;padding-bottom:0;}
.spec-row__key{color:var(--muted);font-weight:600;flex:0 0 auto;}
.spec-row__val{color:var(--ink);font-weight:700;text-align:right;font-variant-numeric:tabular-nums;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-1);}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item:last-child{border-bottom:none;}
.faq__item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;font-size:17px;font-weight:700;color:var(--ink);
  transition:background-color .16s var(--ease),color .16s var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{background:var(--mint);color:var(--green);}
.faq__item summary::after{
  content:"+";flex:0 0 auto;width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;background:var(--mint);color:var(--green);
  font-size:19px;font-weight:700;line-height:1;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
}
.faq__item[open] summary::after{transform:rotate(45deg);background:var(--green);color:#fff;}
.faq__item[open] summary{color:var(--green);}
.faq__answer{padding:0 26px 24px;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:760px;}
.faq__answer p{margin:0;}

/* ---------- CTA 深色区块 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--green-deep);color:#fff;
  border-radius:var(--r-l);padding:64px 56px;
  box-shadow:0 18px 40px rgba(7,58,47,.22);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.7;
}
.cta-band__inner{position:relative;z-index:1;max-width:720px;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,32px);line-height:1.3;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.80);font-size:16px;line-height:1.85;margin-bottom:28px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px;}
.cta-band__note{font-size:13px;color:rgba(255,255,255,.62);display:flex;flex-wrap:wrap;gap:8px 20px;font-variant-numeric:tabular-nums;}
.cta-band__note span{display:inline-flex;align-items:center;gap:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:72px 0 32px;margin-top:var(--sp-7);}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.10);}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0;max-width:340px;}
.footer__title{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(180,224,208,.92);margin-bottom:16px;}
.footer__link{display:block;color:rgba(255,255,255,.72);font-size:14.5px;padding:6px 0;transition:color .16s var(--ease),transform .16s var(--ease);}
.footer__link:hover{color:var(--orange);transform:translateX(2px);}
.footer__note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin:0;}
.footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.46);
}

/* ---------- 移动端底部下载条 ---------- */
.mobile-download{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;
  height:56px;background:rgba(7,58,47,.97);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.12);
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
}
.mobile-download__text{color:#fff;font-size:14px;font-weight:700;}
.mobile-download .btn{min-height:38px;font-size:14px;padding:0 16px;}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1 !important;transform:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ---------- 栅格修正 ---------- */
.grid-padding-x{margin-left:-14px;margin-right:-14px;}
.grid-padding-x>.cell{padding-left:14px;padding-right:14px;}
.grid-padding-y>.cell{margin-bottom:28px;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .page-hero{padding:40px 0 52px;}
  .cta-band{padding:48px 40px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-desktop{display:none;}
  .header__cta .btn--primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .header__inner{gap:16px;min-height:68px;}
  .brand__text{font-size:15.5px;}
  .brand__mark{width:36px;height:36px;border-radius:10px;font-size:17px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  body{padding-bottom:64px;}
  .mobile-download{display:flex;}
  .page-hero{padding:32px 0 44px;}
  .page-hero h1{font-size:28px;}
  .page-hero__lead{font-size:16px;}
  .hero-facts{gap:16px 0;}
  .hero-facts__item{flex:1 1 100%;padding:0;}
  .hero-facts__item+.hero-facts__item::before{display:none;}
  .hero-facts__item{padding-top:14px;border-top:1px solid rgba(14,91,74,.14);}
  .hero-facts__item:first-child{padding-top:0;border-top:none;}
  .notice-strip{padding:28px 22px;}
  .spec-card{padding:24px 20px;}
  .faq__item summary{padding:18px 20px;font-size:16px;}
  .faq__answer{padding:0 20px 20px;font-size:15px;}
  .cta-band{padding:36px 24px;border-radius:var(--r-m);}
  .cta-band__actions .btn{width:100%;}
  .release-card__media{aspect-ratio:4/3;}
  .site-footer{padding:56px 0 28px;margin-top:56px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .wrap{padding:0 18px;}
  .btn{width:100%;}
  .hero-facts{padding-top:18px;}
  .release-card__body{padding:20px 18px;}
  .mobile-download__text{font-size:13px;}
}