/* roulang page: index */
:root{
  --green:#145A4A;
  --green-deep:#0E3F34;
  --cinnabar:#D96C3B;
  --cinnabar-soft:#F3D8C9;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --text:#1C211E;
  --muted:#5D665F;
  --line:#E4DED2;
  --dark:#101614;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --danger:#B5473A;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(16,22,20,.06);
  --shadow-hover:0 18px 40px rgba(16,22,20,.12);
  --container:1240px;
  --t:200ms cubic-bezier(.2,.6,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--paper);
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-weight:700;line-height:1.28;letter-spacing:.01em}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:92px 0}
.section-alt{background:#FFFDF8;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:var(--dark);color:#E9EDE9}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:600;letter-spacing:.14em;color:var(--cinnabar);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cinnabar);display:block}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.2rem);margin:14px 0 14px}
.section-head p{color:var(--muted);font-size:1rem}
.section-dark .section-head p{color:#A9B5AE}
.muted{color:var(--muted)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:12px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;font-size:.95rem;font-weight:600;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;flex:none}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 10px 24px rgba(20,90,74,.22)}
.btn-primary:hover{background:var(--green-deep);transform:translateY(-2px);box-shadow:0 16px 30px rgba(20,90,74,.28)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--green-deep)}
.btn-light:hover{background:var(--cinnabar-soft);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.36);color:#fff}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:9px 16px;font-size:.9rem}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;font-size:.76rem;font-weight:600;
  background:rgba(20,90,74,.08);color:var(--green);border:1px solid rgba(20,90,74,.14);
}
.badge-warm{background:var(--cinnabar-soft);color:#8C4622;border-color:rgba(217,108,59,.24)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,236,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:11px;font-weight:700;font-size:1.04rem;letter-spacing:.01em}
.logo-mark{
  width:36px;height:36px;flex:none;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--green),var(--green-deep));color:#fff;
  font-size:.8rem;font-weight:700;letter-spacing:.02em;
}
.logo small{display:block;font-size:.7rem;font-weight:500;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 15px;
  border-radius:10px;font-size:.94rem;color:var(--muted);
  transition:color var(--t),background var(--t);
}
.nav-links a:hover{color:var(--green);background:rgba(20,90,74,.06)}
.nav-links a.active{color:var(--green);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:var(--cinnabar);
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle .icon-close{display:none}
body.nav-open .nav-toggle .icon-close{display:block}
body.nav-open .nav-toggle .icon-menu{display:none}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;padding:80px 0 92px;color:#F2F5F2;min-height:78vh;display:flex;align-items:center}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(115deg,rgba(14,63,52,.96) 0%,rgba(14,63,52,.9) 42%,rgba(16,22,20,.82) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;width:100%}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.16;margin:20px 0 22px;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:#F0A57E}
.hero-sub{font-size:1.06rem;line-height:1.9;color:#C6D2CB;max-width:600px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 34px}
.hero-badges span{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  font-size:.84rem;color:#DDE6E0;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{margin-top:22px;font-size:.86rem;color:#9FB0A7}
.device{
  border-radius:24px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.07);padding:14px;backdrop-filter:blur(6px);
  box-shadow:0 26px 60px rgba(0,0,0,.28);
}
.device-bar{display:flex;align-items:center;gap:7px;padding:0 4px 12px}
.device-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.28);display:block}
.device-bar span{margin-left:auto;font-size:.74rem;color:#9FB0A7;letter-spacing:.08em;font-family:Inter,sans-serif}
.device img{border-radius:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats div strong{display:block;font-family:Inter,"Noto Sans SC",sans-serif;font-size:1.5rem;color:#fff}
.hero-stats div span{font-size:.84rem;color:#9FB0A7}

/* ---------- feature cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.32)}
.card h3{font-size:1.16rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.94rem}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(20,90,74,.08);color:var(--green);margin-bottom:18px;
}
.card-icon svg{width:21px;height:21px}
.card-num{font-family:Inter,sans-serif;font-size:.8rem;font-weight:600;color:var(--cinnabar);letter-spacing:.12em}

/* ---------- shots carousel ---------- */
.shots{position:relative}
.shot-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 26px;scrollbar-width:none;-ms-overflow-style:none;
}
.shot-track::-webkit-scrollbar{display:none}
.shot{
  flex:0 0 min(540px,84%);scroll-snap-align:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-body{padding:22px 24px 26px}
.shot-body h3{font-size:1.1rem;margin-bottom:8px}
.shot-body p{color:var(--muted);font-size:.92rem}
.shot-nav{display:flex;align-items:center;gap:16px;justify-content:space-between;margin-top:8px}
.dots{display:flex;gap:8px;align-items:center}
.dots button{
  width:9px;height:9px;padding:0;border-radius:50%;border:none;cursor:pointer;
  background:var(--line);transition:background var(--t),width var(--t);
}
.dots button[aria-selected="true"]{background:var(--cinnabar);width:26px;border-radius:999px}
.arrow-group{display:flex;gap:10px}
.arrow-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;transition:border-color var(--t),color var(--t),transform var(--t);
}
.arrow-btn:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
.arrow-btn svg{width:18px;height:18px}
.auto-btn{
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;
  font-size:.84rem;color:var(--muted);cursor:pointer;transition:color var(--t),border-color var(--t);
}
.auto-btn:hover{color:var(--green);border-color:var(--green)}

/* ---------- requirements ---------- */
.req-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.req-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;box-shadow:var(--shadow)}
.req-card header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:18px}
.req-card h3{font-size:1.14rem}
.req-list dt{font-size:.8rem;font-weight:600;color:var(--cinnabar);letter-spacing:.08em;margin-top:16px}
.req-list dt:first-child{margin-top:0}
.req-list dd{margin:6px 0 0;font-size:.94rem;color:var(--text)}
.req-list dd span{color:var(--muted);font-family:Inter,"Noto Sans SC",sans-serif}
.req-note{margin-top:28px;display:flex;gap:14px;align-items:flex-start;padding:20px 22px;border-radius:var(--radius);background:#FFF6F0;border:1px solid rgba(217,108,59,.24)}
.req-note svg{width:20px;height:20px;color:var(--cinnabar);flex:none;margin-top:3px}
.req-note p{font-size:.92rem;color:#7A4A2E}

/* ---------- reviews ---------- */
.review-track{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x proximity;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review{
  flex:0 0 min(340px,80%);scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.avatar{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;flex:none;
  background:linear-gradient(140deg,var(--green),var(--green-deep));color:#fff;font-weight:700;font-size:.95rem;
}
.review-top strong{display:block;font-size:.96rem}
.review-top small{color:var(--muted);font-size:.8rem}
.stars{color:var(--cinnabar);font-size:.9rem;letter-spacing:.14em;margin-bottom:10px}
.review p{font-size:.93rem;color:var(--muted)}
.review-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ---------- downloads ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.34)}
.dl-card.main{border-color:rgba(20,90,74,.42);background:linear-gradient(180deg,#FFFFFF,#F8FBF9)}
.dl-head{display:flex;align-items:center;gap:12px}
.dl-head .card-icon{margin:0;width:40px;height:40px}
.dl-head h3{font-size:1.06rem}
.dl-specs{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dl-specs div span{display:block;font-size:.76rem;color:var(--muted);letter-spacing:.06em}
.dl-specs div strong{font-family:Inter,"Noto Sans SC",sans-serif;font-size:.94rem;font-weight:600}
.dl-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto}
.dl-foot{font-size:.8rem;color:var(--muted)}

/* ---------- news (CMS) ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.3)}
.news-thumb{display:block;overflow:hidden;background:#EDE9DF}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:.78rem;color:var(--muted)}
.news-body h3{font-size:1.05rem;line-height:1.55}
.news-body h3 a:hover{color:var(--green)}
.news-body p{font-size:.9rem;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;font-size:.88rem;font-weight:600;color:var(--green)}
.news-more::after{content:" →";color:var(--cinnabar)}
.news-more:hover{color:var(--green-deep)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--radius);color:var(--muted);background:#FFFDF8;
}

/* ---------- faq ---------- */
.faq-list{max-width:880px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:18px;
  padding:24px 6px;font-size:1.04rem;font-weight:600;transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--green)}
.faq-item summary .plus{
  margin-left:auto;flex:none;width:26px;height:26px;position:relative;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--cinnabar);border-radius:2px;transition:transform var(--t),opacity var(--t);
}
.faq-item summary .plus::before{left:0;top:12px;width:26px;height:2px}
.faq-item summary .plus::after{left:12px;top:0;width:2px;height:26px}
.faq-item[open] summary{color:var(--green)}
.faq-item[open] summary .plus::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 6px 26px 0;color:var(--muted);font-size:.95rem;max-width:760px;border-left:2px solid transparent}
.faq-item[open] .faq-answer{border-left-color:var(--cinnabar-soft);padding-left:18px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--green-deep);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;padding:82px 0}
.cta-inner h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:16px;color:#fff}
.cta-inner p{color:#BDCDC5;font-size:.98rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-panel{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);padding:26px 24px}
.cta-panel h3{font-size:1rem;margin-bottom:16px;color:#fff}
.cta-panel li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:#C6D2CB;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.14)}
.cta-panel li:last-child{border-bottom:none}
.cta-panel li svg{width:17px;height:17px;color:#F0A57E;flex:none;margin-top:3px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#B9C3BC;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer .logo{color:#fff}
.site-footer .logo small{color:#8F9C94}
.footer-about p{font-size:.9rem;margin-top:18px;max-width:330px;color:#8F9C94}
.footer-col h4{font-size:.94rem;color:#fff;margin-bottom:18px}
.footer-col li{padding:6px 0}
.footer-col a{font-size:.9rem;color:#9BA8A0;transition:color var(--t)}
.footer-col a:hover{color:#F0A57E}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;padding:24px 0 30px;font-size:.84rem;color:#7C8A82}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a:hover{color:#F0A57E}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:12px 24px 26px;transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity var(--t),transform var(--t);max-height:calc(100vh - 72px);overflow:auto;
  }
  body.nav-open .nav-links{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{height:52px;padding:0 8px;border-bottom:1px solid var(--line);border-radius:0;font-size:1rem}
  .nav-links a.active::after{left:8px;right:auto;width:26px;bottom:14px}
  .nav-toggle{display:inline-flex}
  .nav-right .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero{min-height:auto;padding:64px 0 76px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .req-wrap{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:34px;padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:72px 0}
}
@media (max-width:640px){
  body{font-size:15px;line-height:1.72}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .grid-4,.grid-3,.grid-2,.news-grid,.dl-grid,.footer-grid{grid-template-columns:1fr}
  .shot{flex:0 0 88%}
  .review{flex:0 0 85%}
  .hero-stats{gap:24px}
  .hero-actions .btn{width:100%}
  .dl-actions .btn{width:100%}
  .card,.req-card,.dl-card{padding:22px 20px}
  .faq-item summary{padding:20px 2px;font-size:.98rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --green:#145A4A;
  --green-dark:#0E3F34;
  --orange:#D96C3B;
  --orange-light:#F3D8C9;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --ink:#1C211E;
  --muted:#5D665F;
  --line:#E4DED2;
  --deep:#101614;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --danger:#B5473A;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:24px;
  --shadow:0 12px 30px rgba(16,22,20,.06);
  --shadow-lg:0 20px 46px rgba(16,22,20,.14);
  --container:1240px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--orange);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container-narrow{max-width:840px;}
.section{padding:clamp(48px,7vw,88px) 0;}
.section-tight{padding:clamp(36px,5vw,60px) 0;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,243,236,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:1.05rem;
  line-height:1.2;
  letter-spacing:.01em;
  color:var(--ink);
  white-space:nowrap;
}
.logo-mark{
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--green);
  color:#fff;
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.05em;
  flex:0 0 auto;
}
.logo small{
  display:block;
  margin-top:2px;
  font-size:.68rem;
  font-weight:400;
  letter-spacing:.1em;
  color:var(--muted);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
  font-size:.95rem;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  color:var(--muted);
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--green);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--green);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  place-items:center;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:transparent;
  cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--green);color:var(--green);}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle .icon-close{display:none;}
body.nav-open .nav-toggle .icon-menu{display:none;}
body.nav-open .nav-toggle .icon-close{display:block;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  min-height:44px;
  border-radius:12px;
  border:1px solid transparent;
  background:transparent;
  font-size:.95rem;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:background var(--ease),border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn svg{width:18px;height:18px;flex:0 0 auto;}
.btn-primary{background:var(--green);border-color:var(--green);color:#fff;}
.btn-primary:hover{background:var(--green-dark);border-color:var(--green-dark);transform:translateY(-1px);}
.btn-ghost{border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-1px);}
.btn-accent{background:var(--orange);border-color:var(--orange);color:#fff;}
.btn-accent:hover{background:#c25b2e;border-color:#c25b2e;transform:translateY(-1px);}
.btn-on-dark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.26);color:#fff;}
.btn-on-dark:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.5);}
.btn-sm{padding:9px 16px;min-height:40px;font-size:.88rem;}
.btn-block{width:100%;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  color:#fff;
  padding:clamp(44px,6vw,72px) 0 clamp(48px,6vw,76px);
  background:
    linear-gradient(115deg,rgba(16,22,20,.9) 0%,rgba(20,90,74,.78) 62%,rgba(16,22,20,.72) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.84rem;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.crumbs a{color:rgba(255,255,255,.86);transition:color var(--ease);}
.crumbs a:hover{color:#fff;}
.crumbs span[aria-current]{color:rgba(255,255,255,.6);}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.12);
  font-size:.78rem;
  letter-spacing:.06em;
  color:#fff;
}
.badge-cat::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--orange);
}
.article-hero h1{
  margin:18px 0 20px;
  max-width:900px;
  font-size:clamp(1.85rem,4vw,2.9rem);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.005em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  font-size:.85rem;
  color:rgba(255,255,255,.82);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta span::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:rgba(255,255,255,.5);
}

/* ---------- article body ---------- */
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:clamp(22px,4vw,48px);
}
.article-summary{
  margin:0 0 32px;
  padding:18px 22px;
  border-left:4px solid var(--orange);
  border-radius:0 12px 12px 0;
  background:var(--paper);
  color:var(--muted);
  font-size:.95rem;
  line-height:1.85;
}
.article-body{font-size:16.5px;line-height:1.9;color:var(--ink);overflow-wrap:break-word;}
.article-body > *:last-child{margin-bottom:0;}
.article-body p{margin:0 0 1.2em;line-height:1.9;}
.article-body h2{
  margin:2em 0 .85em;
  padding-left:14px;
  border-left:4px solid var(--green);
  font-size:clamp(1.28rem,2.4vw,1.65rem);
  line-height:1.45;
  font-weight:700;
}
.article-body h3{
  margin:1.7em 0 .6em;
  font-size:1.15rem;
  line-height:1.5;
  font-weight:700;
}
.article-body h4{margin:1.4em 0 .5em;font-size:1.02rem;font-weight:700;}
.article-body ul{list-style:disc;padding-left:1.35em;margin:0 0 1.3em;}
.article-body ol{list-style:decimal;padding-left:1.35em;margin:0 0 1.3em;}
.article-body li{margin-bottom:.55em;line-height:1.85;}
.article-body strong{font-weight:600;}
.article-body a{color:var(--green);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--green-dark);}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  border-left:4px solid var(--orange);
  border-radius:0 12px 12px 0;
  background:var(--paper);
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  margin:1.6em 0;
  border-radius:14px;
  border:1px solid var(--line);
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{margin-top:10px;font-size:.84rem;color:var(--muted);text-align:center;}
.article-body table{
  width:100%;
  margin:1.6em 0;
  border-collapse:collapse;
  font-size:.93rem;
  line-height:1.7;
  display:block;
  overflow-x:auto;
  white-space:nowrap;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--paper);font-weight:600;}
.article-body pre{
  margin:1.6em 0;
  padding:18px 20px;
  border-radius:14px;
  background:var(--deep);
  color:#E7EFEA;
  font-family:var(--mono);
  font-size:.86rem;
  line-height:1.7;
  overflow-x:auto;
}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:#EFEAE0;
  font-family:var(--mono);
  font-size:.88em;
}
.article-body pre code{padding:0;background:none;color:inherit;}
.article-body hr{margin:2em 0;border:none;border-top:1px solid var(--line);}
.empty-state{
  padding:clamp(28px,5vw,52px) 24px;
  text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--paper);
}
.empty-state h3{font-size:1.2rem;margin-bottom:12px;}
.empty-state p{color:var(--muted);margin-bottom:22px;font-size:.95rem;}

/* ---------- section titles ---------- */
.section-head{margin-bottom:clamp(26px,4vw,42px);max-width:760px;}
.section-head .eyebrow{
  display:inline-block;
  margin-bottom:12px;
  font-size:.78rem;
  letter-spacing:.14em;
  color:var(--orange);
  font-weight:600;
}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.05rem);
  line-height:1.35;
  font-weight:700;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:.96rem;line-height:1.85;}

/* ---------- download panel ---------- */
.download-panel{
  border-radius:var(--radius-lg);
  background:linear-gradient(150deg,var(--deep) 0%,#16302A 100%);
  color:#fff;
  padding:clamp(28px,4vw,52px);
  box-shadow:var(--shadow-lg);
}
.download-panel h2{font-size:clamp(1.4rem,2.6vw,1.95rem);line-height:1.35;color:#fff;}
.download-panel .panel-desc{
  margin-top:14px;
  max-width:720px;
  color:rgba(255,255,255,.74);
  font-size:.95rem;
  line-height:1.85;
}
.download-groups{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  margin:32px 0 26px;
}
.dl-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:22px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.dl-card:hover{border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.09);transform:translateY(-2px);}
.dl-card h3{font-size:1.06rem;font-weight:700;color:#fff;}
.dl-card .dl-meta{
  display:flex;
  flex-wrap:wrap;
  gap:6px 14px;
  font-family:var(--mono);
  font-size:.8rem;
  color:rgba(255,255,255,.68);
}
.dl-card p{font-size:.88rem;line-height:1.8;color:rgba(255,255,255,.72);}
.dl-card .btn{margin-top:auto;}
.dl-note{font-size:.83rem;color:rgba(255,255,255,.56);}

/* ---------- recommend ---------- */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rec-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--green);}
.rec-card figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
.rec-card img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;}
.rec-card:hover img{transform:scale(1.04);}
.rec-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body .tag{
  align-self:flex-start;
  padding:4px 11px;
  border-radius:999px;
  background:var(--orange-light);
  color:#8E4520;
  font-size:.74rem;
  letter-spacing:.05em;
}
.rec-body h3{font-size:1.06rem;line-height:1.5;font-weight:700;}
.rec-body p{font-size:.9rem;line-height:1.8;color:var(--muted);}
.rec-body .rec-link{
  margin-top:auto;
  font-size:.88rem;
  font-weight:600;
  color:var(--green);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.rec-card:hover .rec-link{color:var(--green-dark);}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(105deg,rgba(246,243,236,.94) 0%,rgba(243,216,201,.86) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:clamp(30px,4.5vw,56px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-panel .cta-text{max-width:620px;}
.cta-panel h2{font-size:clamp(1.35rem,2.6vw,1.9rem);line-height:1.4;}
.cta-panel p{margin-top:12px;color:var(--muted);font-size:.95rem;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(48px,6vw,80px);
  background:var(--deep);
  color:rgba(255,255,255,.7);
  padding:clamp(44px,5vw,66px) 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .logo{color:#fff;}
.site-footer .logo-mark{background:var(--orange);}
.site-footer .logo small{color:rgba(255,255,255,.52);}
.footer-about p{margin-top:16px;font-size:.88rem;line-height:1.85;color:rgba(255,255,255,.62);max-width:360px;}
.footer-col h4{font-size:.92rem;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:.88rem;color:rgba(255,255,255,.68);transition:color var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-top:22px;
  font-size:.82rem;
  color:rgba(255,255,255,.5);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:rgba(255,255,255,.66);transition:color var(--ease);}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-toggle{display:grid;}
  .nav-links{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 24px 24px;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(16,22,20,.1);
    transform:translateY(-14px);
    opacity:0;
    pointer-events:none;
    transition:opacity var(--ease),transform var(--ease);
  }
  body.nav-open .nav-links{transform:none;opacity:1;pointer-events:auto;}
  .nav-links li{border-bottom:1px solid var(--line);}
  .nav-links li:last-child{border-bottom:none;}
  .nav-links a{display:block;padding:16px 2px;color:var(--ink);font-size:1rem;}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--green);}
  .download-groups{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:640px){
  body{font-size:15px;line-height:26px;}
  .container{padding:0 20px;}
  .logo{font-size:.98rem;}
  .logo small{font-size:.64rem;letter-spacing:.06em;}
  .nav-right .btn-sm{display:none;}
  .article-body{font-size:15.5px;}
  .article-body table{white-space:normal;}
  .download-groups{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-panel{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --green:#145A4A;
  --green-dark:#0E3F34;
  --accent:#D96C3B;
  --accent-soft:#F3D8C9;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --ink:#1C211E;
  --muted:#5D665F;
  --line:#E4DED2;
  --deep:#101614;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --danger:#B5473A;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(16,22,20,.06);
  --shadow-hover:0 20px 44px rgba(16,22,20,.12);
  --container:1240px;
  --gap:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;}
p{margin:0;}
ul,ol,dl{margin:0;padding:0;}
li{list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  min-height:44px;
}
.btn svg{width:18px;height:18px;flex:0 0 auto;}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(20,90,74,.18);}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:0 14px 28px rgba(20,90,74,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#c25c2f;transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--accent-soft);color:#8a4020;
}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--muted);}
.badge-ok{background:rgba(46,125,91,.12);color:var(--ok);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,236,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.01em;
}
.logo-mark{
  display:grid;place-items:center;
  width:38px;height:38px;border-radius:11px;
  background:var(--green);color:#fff;
  font-family:"Inter",sans-serif;font-size:14px;font-weight:600;letter-spacing:.04em;
}
.logo small{
  display:block;font-size:11.5px;font-weight:400;color:var(--muted);letter-spacing:.08em;line-height:1.2;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);font-weight:500;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--green);background:rgba(20,90,74,.06);}
.nav-links a.active{color:var(--green);font-weight:600;background:rgba(20,90,74,.08);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:12px;color:var(--ink);cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle .icon-close{display:none;}
.nav-toggle[aria-expanded="true"] .icon-menu{display:none;}
.nav-toggle[aria-expanded="true"] .icon-close{display:block;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.55);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;font-size:13.5px;color:var(--muted);
}
.crumb a:hover{color:var(--green);}
.crumb .sep{color:#bdc2bb;}
.crumb .now{color:var(--ink);font-weight:500;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(16,22,20,.86),rgba(14,63,52,.88)),
             url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#F6F3EC;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -10% -60% 55%;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,108,59,.28),transparent 68%);
  pointer-events:none;
}
.page-hero .inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
  padding:84px 0 88px;
}
.page-hero .kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(246,243,236,.28);
  font-size:12.5px;letter-spacing:.1em;color:rgba(246,243,236,.86);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(2rem,4.2vw,3.1rem);
  line-height:1.24;color:#fff;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:#F0B08A;}
.page-hero .lead{
  font-size:16.5px;line-height:1.85;color:rgba(246,243,236,.82);
  max-width:600px;margin-bottom:26px;
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;
}
.hero-facts span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:rgba(246,243,236,.9);
  padding:6px 12px;border-radius:999px;
  background:rgba(246,243,236,.1);border:1px solid rgba(246,243,236,.16);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-actions .btn-ghost{color:#F6F3EC;border-color:rgba(246,243,236,.35);}
.hero-actions .btn-ghost:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.08);}

.hero-panel{
  background:rgba(255,255,255,.96);
  border-radius:var(--radius);
  padding:26px;color:var(--ink);
  box-shadow:0 24px 60px rgba(0,0,0,.26);
  border:1px solid rgba(255,255,255,.5);
}
.hero-panel h2{
  font-size:16px;margin-bottom:6px;color:var(--ink);
}
.hero-panel .panel-note{font-size:13px;color:var(--muted);margin-bottom:18px;}
.dl-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 0;border-top:1px solid var(--line);
}
.dl-row:first-of-type{border-top:none;}
.dl-meta{display:flex;flex-direction:column;gap:2px;}
.dl-meta strong{font-size:14.5px;font-weight:600;}
.dl-meta small{font-size:12.5px;color:var(--muted);}
.dl-row .btn{flex:0 0 auto;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  font-size:12.5px;letter-spacing:.16em;color:var(--accent);
  font-weight:600;text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.5rem,3vw,2.15rem);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:15.5px;}

/* ---------- 步骤时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--green),rgba(217,108,59,.55));
}
.step{
  position:relative;display:grid;grid-template-columns:48px 1fr;
  gap:22px;padding-bottom:30px;
}
.step:last-child{padding-bottom:0;}
.step-num{
  position:relative;z-index:2;
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);
  font-family:"Inter",sans-serif;font-size:16px;font-weight:600;color:var(--green);
  box-shadow:var(--shadow);
}
.step-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.35);}
.step-body h3{font-size:1.15rem;margin-bottom:10px;}
.step-body p{color:var(--muted);font-size:15px;}
.step-body ul{margin-top:12px;display:grid;gap:8px;}
.step-body ul li{
  position:relative;padding-left:18px;font-size:14.5px;color:#3c443e;
}
.step-body ul li::before{
  content:"";position:absolute;left:0;top:10px;
  width:7px;height:7px;border-radius:50%;background:var(--accent);
}
.step-tips{
  margin-top:16px;padding:12px 16px;border-radius:var(--radius-sm);
  background:rgba(20,90,74,.06);border-left:3px solid var(--green);
  font-size:14px;color:var(--green-dark);
}

/* ---------- 系统要求定义列表 ---------- */
.req-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.req-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.req-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.req-card > header{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px;
}
.req-card h3{font-size:1.1rem;}
.req-card dl{margin:0;}
.req-card dt{
  font-size:13px;color:var(--muted);letter-spacing:.04em;padding-top:14px;
}
.req-card dd{
  margin:4px 0 0;font-size:15px;font-weight:500;color:var(--ink);
  display:flex;flex-wrap:wrap;gap:8px;align-items:baseline;
}
.req-card dd .num{font-family:"Inter",sans-serif;font-weight:600;color:var(--green);}
.req-note{
  margin-top:24px;padding:16px 20px;border-radius:var(--radius-sm);
  background:#fff;border:1px dashed var(--line);font-size:14px;color:var(--muted);
}

/* ---------- 下载按钮组 ---------- */
.dl-section{
  background:linear-gradient(180deg,#0E3F34,#101614);
  color:#F6F3EC;
}
.dl-section .section-head h2{color:#fff;}
.dl-section .section-head p{color:rgba(246,243,236,.72);}
.dl-section .section-head .eyebrow{color:#F0B08A;}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.dl-card{
  background:rgba(246,243,236,.06);
  border:1px solid rgba(246,243,236,.16);
  border-radius:var(--radius);padding:26px;
  display:flex;flex-direction:column;gap:16px;
  transition:transform .22s ease,border-color .22s ease,background-color .22s ease;
}
.dl-card:hover{transform:translateY(-2px);border-color:rgba(240,176,138,.6);background:rgba(246,243,236,.1);}
.dl-card h3{color:#fff;font-size:1.1rem;}
.dl-card .spec{
  display:grid;gap:6px;font-size:13.5px;color:rgba(246,243,236,.72);
  font-family:"Inter","Noto Sans SC",sans-serif;
}
.dl-card .spec span{display:flex;justify-content:space-between;gap:12px;}
.dl-card .spec span b{font-weight:600;color:rgba(246,243,236,.95);}
.dl-card .btn-ghost{color:#F6F3EC;border-color:rgba(246,243,236,.35);}
.dl-card .btn-ghost:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.1);}
.dl-card .btn-primary{background:var(--accent);}
.dl-card .btn-primary:hover{background:#c25c2f;}
.dl-footnote{
  margin-top:26px;font-size:13.5px;color:rgba(246,243,236,.6);
  display:flex;flex-wrap:wrap;gap:10px 22px;
}

/* ---------- 校验清单 ---------- */
.check-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.35);}
.check-icon{
  flex:0 0 auto;width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;background:rgba(20,90,74,.1);color:var(--green);
}
.check-icon svg{width:19px;height:19px;}
.check-item h3{font-size:1rem;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--muted);}

/* ---------- FAQ 手风琴 ---------- */
.faq-list{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:20px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:1.05rem;font-weight:600;color:var(--ink);
  transition:color .2s ease,padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--green);}
.faq-item summary .plus{
  flex:0 0 auto;position:relative;width:22px;height:22px;margin-top:3px;
  transition:transform .24s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-item summary .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-item summary .plus::after{left:10px;top:0;width:2px;height:22px;transition:opacity .2s ease;}
.faq-item[open] summary{color:var(--green);padding-left:12px;}
.faq-item[open] summary .plus::after{opacity:0;}
.faq-item .faq-answer{
  padding:0 4px 24px;font-size:15px;color:var(--muted);max-width:900px;
}
.faq-item .faq-answer p + p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:52px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:14px;}
.cta-band p{color:var(--muted);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-media{margin-top:26px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.cta-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.split h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:16px;}
.split p{color:var(--muted);font-size:15.5px;}
.split ul{margin-top:20px;display:grid;gap:12px;}
.split ul li{
  display:flex;gap:12px;font-size:15px;color:#3c443e;
}
.split ul li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--accent);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--deep);color:rgba(246,243,236,.72);
  padding:66px 0 26px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(246,243,236,.12);
}
.site-footer .logo{color:#fff;}
.site-footer .logo small{color:rgba(246,243,236,.55);}
.footer-about p{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(246,243,236,.62);max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(246,243,236,.68);transition:color .2s ease;}
.footer-col ul a:hover{color:#F0B08A;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  padding-top:24px;font-size:13.5px;color:rgba(246,243,236,.55);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom nav a:hover{color:#F0B08A;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .page-hero .inner{grid-template-columns:1fr;gap:40px;padding:64px 0 68px;}
  .section{padding:72px 0;}
  .dl-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .split{grid-template-columns:1fr;gap:34px;}
}
@media (max-width:860px){
  .nav-links{
    position:absolute;top:72px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    padding:8px 24px 20px;
    box-shadow:0 18px 36px rgba(16,22,20,.08);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:15px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links a.active{background:transparent;}
  .nav-links a.active::after{left:auto;right:6px;bottom:auto;top:50%;transform:translateY(-50%);}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn-sm{display:none;}
  .req-wrap,.check-list{grid-template-columns:1fr;}
}
@media (max-width:640px){
  body{font-size:15px;line-height:1.7;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero .inner{padding:52px 0 56px;}
  .hero-panel{padding:20px;}
  .dl-grid{grid-template-columns:1fr;}
  .dl-row{flex-direction:column;align-items:stretch;}
  .dl-row .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .step{grid-template-columns:40px 1fr;gap:14px;}
  .step-num{width:40px;height:40px;border-radius:12px;font-size:14px;}
  .timeline::before{left:19px;}
  .step-body{padding:20px;}
  .cta-band{padding:30px 22px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --green:#145A4A;
  --green-deep:#0E3F34;
  --orange:#D96C3B;
  --orange-soft:#F3D8C9;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --text:#1C211E;
  --muted:#5D665F;
  --line:#E4DED2;
  --dark:#101614;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --danger:#B5473A;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(16,22,20,.06);
  --shadow-hover:0 18px 42px rgba(16,22,20,.12);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(2.2rem,5vw,3.4rem);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.32;font-weight:700;letter-spacing:-.005em}
h3{font-size:1.25rem;line-height:1.45;font-weight:600}
p{line-height:1.8}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--orange);text-transform:uppercase;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px}
.section-head p{margin-top:14px;color:var(--muted)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 20px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--green);border-color:var(--green);color:#fff;box-shadow:0 8px 20px rgba(20,90,74,.18)}
.btn-primary:hover{background:var(--green-deep);border-color:var(--green-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(20,90,74,.24)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--green);color:var(--green-deep);background:rgba(20,90,74,.05)}
.btn-light{background:#fff;border-color:#fff;color:var(--green-deep)}
.btn-light:hover{background:var(--orange-soft);border-color:var(--orange-soft)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:14px 26px;font-size:16px}
.btn:active{transform:translateY(0)}

/* 徽标 / 标签 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.6}
.badge-new{background:rgba(46,125,91,.12);color:var(--ok)}
.badge-fix{background:rgba(217,108,59,.14);color:#B0552A}
.badge-opt{background:rgba(20,90,74,.1);color:var(--green)}
.badge-safe{background:rgba(183,121,31,.14);color:var(--warn)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--muted);background:#fff}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,236,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:700;color:var(--green-deep);line-height:1.25}
.logo-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(145deg,var(--green),var(--green-deep));
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;
  display:grid;place-items:center;
}
.logo small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.06em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:999px;font-size:15px;color:var(--muted);
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--green-deep);background:rgba(20,90,74,.06)}
.nav-links a.active{color:var(--green-deep);font-weight:600;background:rgba(20,90,74,.09)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:3px;width:16px;height:2px;
  transform:translateX(-50%);background:var(--orange);border-radius:2px;
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:12px;cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--green);background:rgba(20,90,74,.05)}
.nav-toggle svg{width:22px;height:22px}
.nav-toggle .icon-close{display:none}
.nav-toggle[aria-expanded="true"] .icon-menu{display:none}
.nav-toggle[aria-expanded="true"] .icon-close{display:block}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.78)}
.breadcrumb a{color:rgba(255,255,255,.9);border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px;transition:border-color .2s ease,color .2s ease}
.breadcrumb a:hover{color:#fff;border-color:#fff}
.breadcrumb span{color:rgba(255,255,255,.95);font-weight:600}

/* 内页 Hero */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  padding:64px 0 72px;
  background-image:
    linear-gradient(115deg,rgba(14,63,52,.94) 0%,rgba(14,63,52,.82) 45%,rgba(217,108,59,.34) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -80px -160px auto;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(243,216,201,.24),transparent 68%);
  pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:840px}
.page-hero h1{margin:22px 0 18px;color:#fff}
.page-hero .lead{font-size:clamp(1rem,1.6vw,1.12rem);color:rgba(255,255,255,.9);max-width:720px}
.hero-facts{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  margin-top:36px;border:1px solid rgba(255,255,255,.22);border-radius:var(--radius);overflow:hidden;
  background:rgba(255,255,255,.08);
}
.hero-facts div{padding:18px 20px;background:rgba(16,22,20,.22)}
.hero-facts dt{font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.68);margin-bottom:6px}
.hero-facts dd{margin:0;font-size:17px;font-weight:600;color:#fff;font-family:var(--mono);font-size:15.5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* 版本信息卡 */
.version-current{background:var(--paper)}
.version-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:stretch}
.version-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:32px;
}
.version-card .top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}
.version-card .top h2{font-size:clamp(1.4rem,2.4vw,1.8rem)}
.version-num{font-family:var(--mono);font-size:2.4rem;font-weight:700;color:var(--green);letter-spacing:-.02em;line-height:1.1}
.version-num small{display:block;font-family:var(--sans);font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-bottom:6px}
.spec-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:6px}
.spec-list div{background:#fff;padding:14px 16px}
.spec-list dt{font-size:12.5px;color:var(--muted);margin-bottom:4px}
.spec-list dd{margin:0;font-size:15px;font-weight:600}
.hash-box{
  margin-top:22px;padding:16px 18px;border-radius:14px;
  background:rgba(20,90,74,.06);border:1px dashed rgba(20,90,74,.28);
}
.hash-box dt{font-size:12.5px;color:var(--green);font-weight:600;letter-spacing:.06em;margin-bottom:8px}
.hash-box dd{margin:0;font-family:var(--mono);font-size:13px;word-break:break-all;color:var(--green-deep);line-height:1.7}
.version-media{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);min-height:320px;background:#EAE5DA;
}
.version-media img{width:100%;height:100%;object-fit:cover;min-height:320px}
.version-media figcaption{
  position:absolute;left:18px;right:18px;bottom:18px;
  background:rgba(16,22,20,.76);color:#fff;border-radius:14px;padding:14px 16px;
  font-size:13.5px;line-height:1.7;backdrop-filter:blur(6px);
}

/* 横向时间线 */
.timeline-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.timeline-head .section-head{margin-bottom:0}
.timeline-scroll{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.timeline-scroll::-webkit-scrollbar{height:6px}
.timeline-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px}
.tl-item{
  position:relative;flex:0 0 320px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.4)}
.tl-item::before{
  content:"";position:absolute;top:-6px;left:24px;width:12px;height:12px;border-radius:50%;
  background:var(--orange);border:3px solid #fff;box-shadow:0 0 0 1px var(--line);
}
.tl-item.is-current::before{background:var(--green)}
.tl-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.tl-ver{font-family:var(--mono);font-size:19px;font-weight:700;color:var(--green-deep)}
.tl-date{font-family:var(--mono);font-size:13px;color:var(--muted)}
.tl-item h3{font-size:1.05rem;margin:14px 0 8px}
.tl-item p{font-size:14.5px;color:var(--muted);line-height:1.75}
.tl-item ul{margin-top:12px;display:grid;gap:8px}
.tl-item li{position:relative;padding-left:18px;font-size:14px;color:var(--text);line-height:1.7}
.tl-item li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--orange-soft)}
.timeline-foot{margin-top:12px;font-size:14px;color:var(--muted)}

/* 更新内容阅读说明 */
.read-guide{background:var(--paper)}
.guide-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
.guide-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.guide-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.guide-list{display:grid;gap:14px;margin-top:26px}
.guide-list li{
  display:flex;gap:16px;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guide-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.35)}
.guide-idx{
  flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(20,90,74,.09);color:var(--green-deep);font-family:var(--mono);font-weight:700;font-size:14px;
}
.guide-list h3{font-size:1.05rem;margin-bottom:6px}
.guide-list p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* 校验清单 */
.verify{background:#fff;border-top:1px solid var(--line)}
.verify-grid{display:grid;grid-template-columns:1fr .85fr;gap:40px;align-items:start}
.check-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.check-list li{display:flex;gap:14px;background:#fff;padding:20px 22px}
.check-list .mark{
  flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(46,125,91,.12);color:var(--ok);margin-top:3px;
}
.check-list .mark svg{width:15px;height:15px}
.check-list strong{display:block;font-size:15.5px;margin-bottom:4px}
.check-list p{font-size:14.5px;color:var(--muted);line-height:1.75}
.note-panel{
  background:linear-gradient(160deg,var(--green) 0%,var(--green-deep) 100%);
  color:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);
}
.note-panel h3{color:#fff;margin-bottom:14px}
.note-panel p{color:rgba(255,255,255,.84);font-size:14.5px;line-height:1.8}
.note-panel ul{margin-top:20px;display:grid;gap:12px}
.note-panel li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.92);line-height:1.7}
.note-panel li svg{width:16px;height:16px;flex:none;margin-top:6px;color:var(--orange-soft)}
.note-panel .btn{margin-top:24px}

/* 下载区 */
.downloads{background:var(--paper)}
.dl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.dl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.dl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(20,90,74,.35)}
.dl-card.is-primary{border-color:rgba(20,90,74,.4);background:linear-gradient(180deg,#fff 0%,#FBF8F2 100%)}
.dl-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.dl-head h3{display:flex;align-items:center;gap:10px;font-size:1.1rem}
.dl-head h3 svg{width:20px;height:20px;color:var(--green)}
.dl-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0}
.dl-meta dt{font-size:12px;color:var(--muted);margin-bottom:3px}
.dl-meta dd{margin:0;font-size:14px;font-weight:600;font-family:var(--mono)}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto}
.dl-note{font-size:13.5px;color:var(--muted)}
.download-tip{
  margin-top:26px;display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
}
.download-tip svg{width:20px;height:20px;flex:none;color:var(--orange);margin-top:3px}
.download-tip p{font-size:14.5px;color:var(--muted)}

/* FAQ */
.faq{background:#fff;border-top:1px solid var(--line)}
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
.faq-aside h2{margin-bottom:16px}
.faq-aside p{color:var(--muted);font-size:15px}
.faq-aside .tag{margin-top:20px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;cursor:pointer;list-style:none;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item h3{font-size:1.05rem;font-weight:600;color:var(--text);transition:color .2s ease}
.faq-item summary:hover h3{color:var(--green)}
.faq-icon{
  flex:none;width:30px;height:30px;border-radius:9px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--green);
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease;
}
.faq-icon svg{width:15px;height:15px}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(20,90,74,.08);border-color:rgba(20,90,74,.35)}
.faq-body{padding:0 0 24px;border-left:2px solid var(--orange-soft);padding-left:18px;margin-bottom:22px}
.faq-body p{font-size:15px;color:var(--muted)}
.faq-body p + p{margin-top:10px}

/* 底部 CTA */
.cta-band{
  background-image:linear-gradient(120deg,rgba(16,22,20,.92),rgba(20,90,74,.88)),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;color:#fff;
}
.cta-inner{display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center}
.cta-inner h2{color:#fff;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.85);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-side{display:grid;gap:12px}
.cta-side div{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:14px;
  padding:16px 18px;font-size:14.5px;color:rgba(255,255,255,.92);
}
.cta-side strong{display:block;font-size:16px;margin-bottom:4px;color:#fff}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.site-footer .logo{color:#fff;margin-bottom:18px}
.site-footer .logo small{color:rgba(255,255,255,.5)}
.footer-about p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-col a:hover{color:var(--orange-soft)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.55)}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{font-size:13.5px;color:rgba(255,255,255,.62);transition:color .2s ease}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(246,243,236,.99);
    border-bottom:1px solid var(--line);
    padding:18px 24px 26px;box-shadow:0 20px 34px rgba(16,22,20,.1);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:14px 8px;border-radius:10px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-links a.active::after{display:none}
  .nav-links a.active{background:rgba(20,90,74,.08)}
  .version-grid,.guide-grid,.verify-grid,.faq-wrap,.cta-inner{grid-template-columns:1fr}
  .cta-inner{gap:28px}
  .hero-facts{grid-template-columns:repeat(2,1fr)}
  .section{padding:68px 0}
  .section-tight{padding:52px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .dl-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-about{grid-column:1 / -1}
  .timeline-scroll{flex-direction:column;overflow:visible;scroll-snap-type:none;padding-bottom:6px}
  .tl-item{flex:1 1 auto;width:100%}
  .tl-item::before{left:20px}
}
@media (max-width:520px){
  body{font-size:15px;line-height:1.7}
  .page-hero{padding:44px 0 54px}
  .hero-facts{grid-template-columns:1fr;margin-top:28px}
  .hero-actions .btn{width:100%}
  .version-card{padding:22px}
  .version-num{font-size:2rem}
  .spec-list{grid-template-columns:1fr}
  .dl-meta{grid-template-columns:1fr 1fr}
  .dl-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --green:#145A4A;
  --green-deep:#0E3F34;
  --orange:#D96C3B;
  --orange-soft:#F3D8C9;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --ink:#1C211E;
  --muted:#5D665F;
  --line:#E4DED2;
  --dark:#101614;
  --success:#2E7D5B;
  --warn:#B7791F;
  --danger:#B5473A;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(16,22,20,.06);
  --shadow-lg:0 20px 44px rgba(16,22,20,.12);
  --container:1200px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;}
::selection{background:var(--orange-soft);color:var(--green-deep);}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;min-height:46px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 18px rgba(20,90,74,.18);}
.btn-primary:hover{background:var(--green-deep);transform:translateY(-1px);box-shadow:0 12px 24px rgba(20,90,74,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--green);color:var(--green);}
.btn-orange{background:var(--orange);color:#fff;}
.btn-orange:hover{background:#C25B2D;}
.btn-sm{padding:10px 16px;min-height:40px;font-size:14px;}
.btn-lg{padding:16px 28px;min-height:54px;font-size:16px;}
.btn-block{width:100%;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,236,.88);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:16.5px;color:var(--green-deep);letter-spacing:.01em;}
.logo-mark{
  width:38px;height:38px;flex:none;border-radius:11px;
  background:linear-gradient(140deg,var(--green) 0%,var(--green-deep) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.04em;
  box-shadow:0 6px 14px rgba(20,90,74,.26);
}
.logo span{display:flex;flex-direction:column;line-height:1.25;}
.logo small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--muted);padding:6px 2px;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--green-deep);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--green-deep);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:inherit;
  border-radius:12px;align-items:center;justify-content:center;color:var(--green-deep);
}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle .icon-close{display:none;}
.nav-toggle[aria-expanded="true"] .icon-menu{display:none;}
.nav-toggle[aria-expanded="true"] .icon-close{display:block;}

/* ============ 面包屑 ============ */
.breadcrumb{padding:26px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);}
.breadcrumb li{display:flex;align-items:center;gap:10px;}
.breadcrumb li+li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--line);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb [aria-current]{color:var(--green-deep);font-weight:600;}

/* ============ Hero ============ */
.hero{
  position:relative;margin-top:24px;
  border-radius:24px;overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(246,243,236,.97) 0%,rgba(246,243,236,.9) 42%,rgba(243,216,201,.55) 100%),
             url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--shadow);
}
.hero-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;
  padding:64px 56px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;
  color:var(--green);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--orange);border-radius:2px;}
.hero h1{
  font-size:clamp(2.1rem,4.4vw,3.1rem);
  line-height:1.24;font-weight:700;color:var(--green-deep);letter-spacing:-.01em;
}
.hero-sub{
  margin-top:20px;font-size:16.5px;line-height:1.85;color:var(--muted);max-width:36em;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.86);border:1px solid var(--line);color:var(--green-deep);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow);
}
.hero-panel h2{
  font-size:15px;font-weight:700;color:var(--green-deep);
  display:flex;align-items:center;gap:9px;margin-bottom:18px;
}
.hero-panel h2 svg{width:19px;height:19px;color:var(--orange);}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--ink);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list li:first-child{padding-top:0;}
.check-mark{
  width:22px;height:22px;flex:none;border-radius:50%;
  background:rgba(46,125,91,.12);color:var(--success);
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.check-mark svg{width:13px;height:13px;}
.panel-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ============ 通用板块 ============ */
.section{padding:88px 0 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--orange);
  text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(1.5rem,2.8vw,2.1rem);
  line-height:1.35;font-weight:700;color:var(--green-deep);
}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.85;}

/* ============ 校验清单 ============ */
.verify-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.verify-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);position:relative;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.verify-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(20,90,74,.35);}
.verify-num{
  font-family:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--orange);
}
.verify-card h3{margin-top:12px;font-size:16.5px;font-weight:700;color:var(--green-deep);}
.verify-card p{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start;
}
.faq-aside{
  position:sticky;top:104px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
}
.faq-aside h3{font-size:16px;font-weight:700;color:var(--green-deep);}
.faq-aside p{margin-top:12px;font-size:14px;line-height:1.8;color:var(--muted);}
.faq-aside ul{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.faq-aside li a{
  display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);
  padding:8px 0;border-bottom:1px dashed var(--line);
}
.faq-aside li:last-child a{border-bottom:0;}
.faq-aside li a:hover{color:var(--green);}
.faq-aside li a svg{width:15px;height:15px;color:var(--orange);flex:none;}

.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--green);transform:scaleY(0);transform-origin:top;
  transition:transform var(--ease);
}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:24px 28px 24px 30px;text-align:left;
  transition:background var(--ease);
}
.faq-q:hover{background:rgba(246,243,236,.6);}
.faq-q h3{font-size:16.5px;font-weight:600;line-height:1.6;color:var(--ink);}
.faq-item.open .faq-q h3{color:var(--green-deep);}
.faq-icon{
  width:26px;height:26px;flex:none;border-radius:50%;
  border:1px solid var(--line);color:var(--green);
  display:flex;align-items:center;justify-content:center;margin-top:2px;
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-icon svg{width:13px;height:13px;}
.faq-item.open .faq-icon{background:var(--green);border-color:var(--green);color:#fff;transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 260ms cubic-bezier(.4,0,.2,1);
}
.faq-a-inner{
  padding:0 30px 26px 30px;font-size:15px;line-height:1.9;color:var(--muted);
  max-width:66em;
}
.faq-a-inner strong{color:var(--green-deep);font-weight:600;}
.faq-a-inner ul{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.faq-a-inner ul li{position:relative;padding-left:18px;}
.faq-a-inner ul li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--orange-soft);
}

/* ============ 排查顺序 ============ */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.flow-step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:14px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(217,108,59,.4);}
.flow-badge{
  align-self:flex-start;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  padding:5px 12px;border-radius:999px;
  background:var(--orange-soft);color:#8E3F1C;
}
.flow-step h3{font-size:17px;font-weight:700;color:var(--green-deep);}
.flow-step p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.flow-step dl{margin:0;font-size:14px;color:var(--muted);}
.flow-step dt{font-weight:600;color:var(--green-deep);margin-top:10px;}
.flow-step dd{margin:4px 0 0;}

/* ============ 相关入口 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(20,90,74,.35);}
.entry-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.4,0,.2,1);}
.entry-card:hover .entry-media img{transform:scale(1.04);}
.entry-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.entry-body h3{font-size:17px;font-weight:700;color:var(--green-deep);}
.entry-body p{font-size:14.5px;line-height:1.8;color:var(--muted);flex:1;}
.entry-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--green);
}
.entry-link svg{width:16px;height:16px;transition:transform var(--ease);}
.entry-card:hover .entry-link svg{transform:translateX(4px);}

/* ============ 下载 CTA ============ */
.cta-block{
  margin-top:96px;
  background:linear-gradient(135deg,var(--green-deep) 0%,var(--green) 62%,#1B6F5B 100%);
  border-radius:26px;padding:64px 56px;color:#fff;position:relative;overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,108,59,.42) 0%,rgba(217,108,59,0) 68%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.cta-block h2{font-size:clamp(1.5rem,2.8vw,2.05rem);line-height:1.4;font-weight:700;}
.cta-block p{margin-top:16px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:34em;}
.dl-group{display:flex;flex-direction:column;gap:14px;}
.dl-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  border-radius:14px;padding:16px 20px;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.dl-row:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}
.dl-row-main{display:flex;flex-direction:column;gap:4px;min-width:0;}
.dl-row-main strong{font-size:15.5px;font-weight:600;color:#fff;}
.dl-meta{
  font-family:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12.5px;color:rgba(255,255,255,.68);letter-spacing:.02em;
}
.dl-row .btn{background:#fff;color:var(--green-deep);border-color:transparent;}
.dl-row .btn:hover{background:var(--orange-soft);color:#8E3F1C;}
.dl-secondary{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.dl-secondary .btn-ghost{color:#fff;border-color:rgba(255,255,255,.34);}
.dl-secondary .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;background:var(--dark);color:#C8CFCB;
  padding:72px 0 30px;border-top:1px solid rgba(255,255,255,.06);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;}
.footer-about .logo{color:#fff;margin-bottom:18px;}
.footer-about .logo small{color:#8C968F;}
.footer-about p{font-size:14px;line-height:1.9;color:#96A09A;max-width:30em;}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#96A09A;transition:color var(--ease);}
.footer-col a:hover{color:var(--orange-soft);}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:#7C8A82;}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:22px;}
.footer-bottom nav a{font-size:13px;color:#96A09A;}
.footer-bottom nav a:hover{color:var(--orange-soft);}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:52px 40px;}
  .verify-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;inset:72px 0 auto 0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:12px 32px 28px;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity var(--ease),transform var(--ease);
    box-shadow:0 20px 40px rgba(16,22,20,.08);
  }
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-links li{width:100%;border-bottom:1px solid var(--line);}
  .nav-links li:last-child{border-bottom:0;}
  .nav-links a{display:block;padding:16px 0;font-size:16px;}
  .nav-links a::after{display:none;}
  .flow{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .logo{font-size:15px;}
  .logo small{display:none;}
  .section{padding:56px 0 0;}
  .section-head{margin-bottom:30px;}
  .hero{margin-top:18px;border-radius:18px;}
  .hero-inner{padding:36px 22px;gap:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .verify-grid{grid-template-columns:1fr;gap:16px;}
  .faq-q{padding:20px 18px 20px 20px;gap:14px;}
  .faq-a-inner{padding:0 20px 22px 20px;font-size:14.5px;}
  .cta-block{padding:40px 22px;border-radius:20px;margin-top:64px;}
  .dl-row{flex-direction:column;align-items:stretch;gap:12px;}
  .dl-row .btn{width:100%;}
  .dl-secondary .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{margin-top:64px;padding:52px 0 26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .footer-bottom nav{gap:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}