/* roulang page: index */
:root{
  --c-primary:#0F3B33;
  --c-primary-deep:#0A2A24;
  --c-accent:#C6F24E;
  --c-accent-soft:#E8F7D6;
  --c-orange:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-card:#FFFFFF;
  --c-line:#E6E7E2;
  --c-ink:#17201E;
  --c-muted:#5B6A66;
  --c-dark-text:#EAF3EF;
  --c-success:#2E9E6B;
  --r-card:18px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,51,.06);
  --sh-2:0 12px 32px rgba(15,59,51,.08);
  --sh-hover:0 18px 48px rgba(15,59,51,.14);
  --sp-section:96px;
  --w-container:1200px;
  --num-font:"DIN Alternate","Bahnschrift",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:-0.02em;font-weight:800;}
p{line-height:1.9;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;}
.container{width:100%;max-width:var(--w-container);margin:0 auto;padding:0 20px;}
.num{font-family:var(--num-font);letter-spacing:0.01em;font-variant-numeric:tabular-nums;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-accent);color:var(--c-primary);padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;letter-spacing:0.02em;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease;
  text-align:center;
}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{background:var(--c-accent);color:var(--c-primary);box-shadow:var(--sh-1);}
.btn-primary:hover{background:#B7E63C;transform:translateX(2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:scale(.98);}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);}
.btn-outline:hover{background:rgba(15,59,51,.06);transform:translateX(2px);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.12);}
.btn-pill{border-radius:var(--r-pill);}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px;border-radius:var(--r-pill);}
.btn-lg{min-height:54px;padding:0 32px;font-size:17px;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:var(--c-primary);
  font-size:14px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.tag-version{background:#FFE8DF;color:#B8441F;}
.tag-plain{background:var(--c-line);color:var(--c-muted);}
.badge-num{
  font-family:var(--num-font);font-size:14px;font-weight:700;
  color:var(--c-primary);background:var(--c-accent);
  border-radius:6px;padding:2px 9px;line-height:1.7;
}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.section-head h2{font-size:clamp(24px,3vw,38px);margin-bottom:14px;}
.section-head p{color:var(--c-muted);font-size:16px;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:0.18em;font-weight:700;
  color:var(--c-primary);background:var(--c-accent-soft);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-head-left{max-width:720px;text-align:left;margin:0 0 40px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:120;
  background:rgba(15,59,51,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:height .25s ease,background-color .25s ease;
}
.nav-wrap{
  display:flex;align-items:center;gap:28px;
  height:68px;transition:height .25s ease;
}
.site-header.scrolled .nav-wrap{height:58px;}
.site-header.scrolled{background:rgba(10,42,36,.97);}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:30px;height:30px;flex:none;border-radius:9px;
  background:linear-gradient(140deg,var(--c-accent) 0 48%,#8FD62E 48% 100%);
  position:relative;transform:rotate(-8deg);
}
.logo-mark::after{
  content:"";position:absolute;inset:9px 8px;border-radius:3px;
  background:var(--c-primary);transform:skewX(-14deg);
}
.logo-text{
  color:#fff;font-size:17px;font-weight:800;letter-spacing:0.02em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  position:relative;color:rgba(255,255,255,.86);font-size:15px;letter-spacing:0.02em;
  padding:10px 12px;border-radius:8px;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-accent);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-side{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  color:#fff;transition:background-color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.14);}
.icon-btn svg{width:20px;height:20px;}
.nav-search{
  width:0;opacity:0;overflow:hidden;
  transition:width .28s ease,opacity .2s ease;
}
.site-header.search-open .nav-search{width:240px;opacity:1;}
.nav-search input{
  width:100%;height:42px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.12);
  color:#fff;padding:0 18px;font-size:15px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.6);}
.nav-search input:focus{outline:2px solid var(--c-accent);outline-offset:2px;}
.hamburger{display:none;}
.drawer-toggle{
  width:44px;height:44px;border-radius:12px;display:none;place-items:center;color:#fff;
}
.drawer-toggle span{display:block;width:20px;height:2px;background:#fff;margin:4px 0;border-radius:2px;transition:.25s;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,42,36,.5);z-index:130;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:140;
  background:var(--c-primary);color:var(--c-dark-text);
  transform:translateX(102%);transition:transform .3s ease;
  padding:24px 22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .logo-text{font-size:16px;}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{
  font-size:17px;line-height:3;color:var(--c-dark-text);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer nav a.active{color:var(--c-accent);}
.drawer .btn{margin-top:22px;}
.drawer-top{
  margin-top:14px;font-size:15px;color:rgba(234,243,239,.7);text-align:center;
}
.drawer-close{width:40px;height:40px;border-radius:10px;color:#fff;display:grid;place-items:center;font-size:22px;line-height:1;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:calc(68px + 64px) 0 88px;
  background:
    radial-gradient(1100px 520px at 88% -10%,rgba(198,242,78,.16),transparent 60%),
    linear-gradient(180deg,#0F3B33 0%,#11433A 58%,#F6F6F3 58%,#F6F6F3 100%);
  overflow:hidden;
}
.hero-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.hero-copy{color:#fff;max-width:620px;}
.hero-copy .hero-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:14px;font-weight:700;letter-spacing:0.14em;
  color:var(--c-accent);margin-bottom:20px;
}
.hero-copy .hero-brand i{
  display:block;width:34px;height:2px;background:var(--c-accent);border-radius:2px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,60px);
  color:#fff;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--c-accent);}
.hero-sub{
  font-size:18px;color:rgba(234,243,239,.86);line-height:1.9;
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 18px;
  font-size:13px;color:rgba(234,243,239,.7);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta b{color:var(--c-accent);font-family:var(--num-font);font-weight:700;}
.hero-visual{position:relative;min-height:380px;}
.hero-back{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:20px;box-shadow:var(--sh-hover);
  border:1px solid rgba(255,255,255,.14);
}
.hero-cover{
  position:absolute;right:-6%;bottom:-12%;width:46%;
  border-radius:18px;border:4px solid #fff;
  transform:rotate(6deg);box-shadow:0 22px 54px rgba(10,42,36,.35);
  object-fit:cover;aspect-ratio:9/14;
}
.hero-stats{
  position:absolute;left:-14px;top:26px;
  background:#fff;border-radius:14px;padding:12px 16px;
  box-shadow:var(--sh-2);border:1px solid var(--c-line);
}
.hero-stats .n{font-family:var(--num-font);font-size:22px;font-weight:800;color:var(--c-primary);}
.hero-stats .t{font-size:12px;color:var(--c-muted);letter-spacing:0.06em;}

/* ---------- 价值带 ---------- */
.value-strip{background:transparent;padding:56px 0 8px;}
.value-list{border-top:1px solid var(--c-line);}
.value-row{
  display:grid;grid-template-columns:88px 1fr;gap:24px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--c-line);
}
.value-row .no{
  font-family:var(--num-font);font-size:30px;font-weight:800;color:var(--c-primary);
  letter-spacing:0.02em;
}
.value-row h3{font-size:19px;font-weight:700;margin-bottom:4px;}
.value-row p{color:var(--c-muted);font-size:15px;margin:0;}

/* ---------- 频道卡 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.channel-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.channel-card .thumb{overflow:hidden;aspect-ratio:16/10;}
.channel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.channel-card:hover .thumb img{transform:scale(1.04);}
.channel-card .body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.channel-card h3{font-size:20px;font-weight:700;}
.channel-card p{font-size:15px;color:var(--c-muted);margin:0;}
.channel-card .more{
  margin-top:auto;padding-top:12px;font-size:15px;font-weight:700;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:8px;
}
.channel-card .more svg{width:16px;height:16px;transition:transform .25s ease;}
.channel-card:hover .more svg{transform:translateX(4px);}

/* ---------- 截图轮播 ---------- */
.shots{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.shot-rail{
  display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:8px 4px 22px;scrollbar-width:thin;
}
.shot-rail::-webkit-scrollbar{height:6px;}
.shot-rail::-webkit-scrollbar-thumb{background:#CFD4CD;border-radius:99px;}
.shot{
  flex:0 0 288px;scroll-snap-align:start;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:14px;box-shadow:var(--sh-1);
}
.shot img{
  width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:14px;
}
.shot figcaption{margin-top:12px;font-size:14px;color:var(--c-muted);text-align:center;}
.shot-nav{display:flex;gap:12px;justify-content:flex-end;margin-top:6px;}
.shot-nav button{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;display:grid;place-items:center;color:var(--c-primary);
  transition:background-color .2s ease,box-shadow .2s ease;
}
.shot-nav button:hover{background:var(--c-accent-soft);box-shadow:var(--sh-1);}
.shot-nav svg{width:18px;height:18px;}
.shot-hint{display:none;font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px;}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spec-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px 26px;transition:box-shadow .25s ease,transform .25s ease;
}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.spec-card .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.spec-card .head h3{font-size:20px;}
.spec-list li{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px dashed var(--c-line);
}
.spec-list li:last-child{border-bottom:0;}
.spec-list .k{color:var(--c-muted);font-size:15px;}
.spec-list .v{
  font-family:var(--num-font);font-weight:700;color:var(--c-primary);
  font-size:15px;text-align:right;
}

/* ---------- 评价墙 ---------- */
.reviews{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.review-grid .review:nth-child(even){margin-top:30px;}
.review{
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.review:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.review .top{display:flex;align-items:center;gap:14px;margin-bottom:12px;}
.avatar{
  width:44px;height:44px;border-radius:12px;flex:none;
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:16px;
  font-family:var(--num-font);
}
.review .who{font-weight:700;font-size:15px;}
.review .stars{color:var(--c-orange);font-size:14px;letter-spacing:2px;}
.review p{font-size:15px;color:#2B3A37;margin:0 0 10px;}
.review .date{font-size:13px;color:var(--c-muted);font-family:var(--num-font);}

/* ---------- 下载区 ---------- */
.download{
  background:linear-gradient(140deg,#0F3B33 0%,#12463C 100%);color:var(--c-dark-text);
  border-radius:24px;padding:52px 44px;position:relative;overflow:hidden;
}
.download::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  border-radius:50%;background:rgba(198,242,78,.12);
}
.download-inner{display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center;position:relative;z-index:1;}
.download h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:14px;}
.download p{color:rgba(234,243,239,.82);font-size:16px;max-width:560px;margin-bottom:26px;}
.download-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px;}
.download-note{font-size:13px;color:rgba(234,243,239,.66);font-family:var(--num-font);}
.qr{
  width:120px;height:120px;border-radius:16px;background:#fff;padding:10px;
  margin:0 auto;box-shadow:var(--sh-2);
}
.qr svg{width:100%;height:100%;display:block;}
.qr-cap{text-align:center;font-size:13px;color:rgba(234,243,239,.7);margin-top:10px;}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.news-card .cover{aspect-ratio:16/10;overflow:hidden;background:#EDEFEA;}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .cover img{transform:scale(1.04);}
.news-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-card h3{
  font-size:18px;line-height:1.5;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .desc{
  font-size:15px;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-muted);font-family:var(--num-font);
}
.news-card .arrow{color:var(--c-primary);font-weight:700;font-family:inherit;}
.empty-state{
  grid-column:1/-1;background:var(--c-card);border:1px dashed #CDD3CB;border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--c-muted);
}
.empty-state svg{width:56px;height:56px;color:#B9C2B9;margin:0 auto 14px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
  margin-bottom:14px;box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 24px;position:relative;
  font-size:17px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-primary);transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-item .ans{padding:0 24px 22px;color:var(--c-muted);font-size:15.5px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:var(--c-dark-text);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:rgba(234,243,239,.76);max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:0.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14.5px;color:rgba(234,243,239,.78);position:relative;
  transition:color .2s ease;
}
.footer-col a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.footer-col a:hover{color:#fff;}
.footer-col a:hover::after{transform:scaleX(1);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(234,243,239,.66);
}

/* ---------- 进场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);}
.js .reveal.in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s ease;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1;transform:none;}
  *{transition:none !important;animation:none !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sp-section:80px;--w-container:100%;}
  .container{padding:0 32px;}
  .hero-inner{gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .drawer-toggle{display:grid;}
  .nav-search{display:none;}
  .site-header.search-open .nav-search{display:block;width:180px;}
}
@media (max-width:991px){
  :root{--sp-section:72px;}
  .hero{padding:calc(68px + 48px) 0 72px;}
  .hero-inner{grid-template-columns:1fr;}
  .hero-visual{min-height:auto;margin-top:12px;}
  .hero-cover{position:relative;right:auto;bottom:auto;width:56%;margin:-56px 0 0 auto;transform:rotate(4deg);}
  .hero-stats{left:auto;right:14px;top:auto;bottom:calc(100% + 8px);}
  .channel-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .spec-grid{grid-template-columns:1fr;}
  .review-grid{grid-template-columns:1fr;}
  .review-grid .review:nth-child(even){margin-top:0;}
  .download-inner{grid-template-columns:1fr;}
  .qr{margin:0;}
  .qr-cap{text-align:left;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--sp-section:56px;}
  .container{padding:0 20px;}
  .hero{padding:calc(68px + 36px) 0 56px;}
  .hero-sub{font-size:16.5px;}
  .hero-actions .btn{flex:1 1 100%;}
  .value-row{grid-template-columns:56px 1fr;gap:16px;padding:20px 0;}
  .value-row .no{font-size:24px;}
  .channel-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .shot{flex:0 0 78%;}
  .shot-nav{display:none;}
  .shot-hint{display:block;}
  .download{padding:36px 22px;border-radius:18px;}
  .download-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .news-card .cover{aspect-ratio:16/9;}
}
@media (max-width:479px){
  .logo-text{font-size:15px;}
  .hero h1{font-size:30px;}
  .btn{min-height:44px;padding:0 20px;font-size:15px;}
  .btn-lg{min-height:48px;padding:0 24px;}
  .hero-cover{width:64%;margin-top:-40px;}
  .section-head{margin-bottom:32px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F3B33;
  --c-primary-deep:#0A2C26;
  --c-accent:#C6F24E;
  --c-accent-deep:#AEDD32;
  --c-orange:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-card:#FFFFFF;
  --c-line:#E6E7E2;
  --c-ink:#17201E;
  --c-muted:#5B6A66;
  --c-dark-text:#EAF3EF;
  --c-tag-bg:#E8F7D6;
  --c-success:#2E9E6B;
  --c-warn:#D98A16;
  --c-error:#C6432F;
  --r-card:18px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:20px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(15,59,51,.06);
  --sh-2:0 12px 32px rgba(15,59,51,.08);
  --sh-hover:0 18px 48px rgba(15,59,51,.14);
  --sp-section:96px;
  --w-container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.02em;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px}
.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0}}
.section{padding:var(--sp-section) 0}
.section-tight{padding:72px 0}
.section-head{margin-bottom:44px;max-width:760px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--c-primary);
  background:var(--c-tag-bg);border-radius:var(--r-pill);
  padding:6px 14px;font-weight:700;margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,3vw,38px);margin-bottom:14px}
.section-head p{color:var(--c-muted);font-size:17px;max-width:680px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:var(--c-primary);border-color:var(--c-accent)}
.btn-primary:hover{background:var(--c-accent-deep);border-color:var(--c-accent-deep);transform:translateX(2px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);border-width:1.5px}
.btn-ghost:hover{background:rgba(15,59,51,.06);transform:translateX(2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72)}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);transform:translateX(2px)}
.btn-pill{border-radius:var(--r-pill)}
.btn-lg{min-height:54px;padding:0 30px;font-size:17px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,59,51,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(234,243,239,.12);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(10,44,38,.97);box-shadow:0 10px 30px rgba(10,44,38,.28)}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.is-scrolled .header-inner{height:58px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:7px;
  background:linear-gradient(135deg,var(--c-accent) 0 48%,transparent 48% 100%),
             linear-gradient(135deg,var(--c-accent) 0 100%);
  background-color:var(--c-accent);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 62%,62% 100%,0 100%);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;
  background:var(--c-primary);
}
.logo-text{color:#fff;font-size:17px;font-weight:800;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:12px}
.nav-links a{
  position:relative;color:rgba(234,243,239,.82);font-size:15px;
  letter-spacing:.02em;padding:6px 0;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:rgba(255,255,255,.7);transition:width .25s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:#fff;font-weight:700}
.nav-links a.active::after{width:100%;height:2px;background:var(--c-accent)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(234,243,239,.2);
  color:#fff;cursor:pointer;transition:background-color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.18)}
.icon-btn svg{width:18px;height:18px}
.hamburger{display:none}
.search-panel{
  display:none;
  position:absolute;top:100%;right:0;
  background:#fff;border:1px solid var(--c-line);
  border-radius:14px;padding:12px;margin-top:8px;
  box-shadow:var(--sh-hover);width:300px;
}
.search-panel.open{display:block}
.search-panel form{display:flex;gap:8px}
.search-panel input{
  flex:1;height:44px;padding:0 12px;border-radius:var(--r-input);
  border:1px solid var(--c-line);font-size:15px;font-family:inherit;color:var(--c-ink);
}
.search-panel input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(198,242,78,.35)}
.search-panel button{
  height:44px;padding:0 16px;border-radius:var(--r-input);border:none;
  background:var(--c-primary);color:#fff;font-weight:700;cursor:pointer;
}
.header-inner{position:relative}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;
  background:var(--c-primary);z-index:90;
  transform:translateX(102%);transition:transform .3s ease;
  padding:24px 22px;display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer a{color:var(--c-dark-text);font-size:17px;line-height:3;border-bottom:1px solid rgba(234,243,239,.14)}
.drawer a.active{color:var(--c-accent)}
.drawer .btn{margin-top:20px;color:var(--c-primary)}
.drawer-close{
  align-self:flex-end;background:none;border:none;color:#fff;font-size:26px;
  line-height:1;cursor:pointer;padding:6px 4px 14px;
}
.scrim{
  position:fixed;inset:0;background:rgba(10,44,38,.5);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.scrim.open{opacity:1;pointer-events:auto}
@media (max-width:991px){
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .header-inner{height:56px}
  .is-scrolled .header-inner{height:56px}
  .header-actions .btn-pill{display:none}
  .logo-text{font-size:15px}
}
@media (max-width:520px){
  .logo-text{max-width:150px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
  .search-panel{width:calc(100vw - 40px);right:-6px}
}

/* ---------- Hero strip ---------- */
.hero-strip{
  position:relative;
  background-color:var(--c-primary-deep);
  background-image:linear-gradient(105deg,rgba(10,44,38,.94) 0%,rgba(10,44,38,.82) 52%,rgba(10,44,38,.6) 100%),
                   url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:var(--c-dark-text);
  padding:56px 0 60px;
  overflow:hidden;
}
.hero-strip::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;
  border:1px solid rgba(198,242,78,.28);border-radius:50%;
}
.hero-strip .inner{position:relative;z-index:2;max-width:820px}
.crumbs{font-size:14px;color:rgba(234,243,239,.7);margin-bottom:20px}
.crumbs a{border-bottom:1px solid rgba(234,243,239,.3)}
.crumbs a:hover{color:#fff;border-color:var(--c-accent)}
.crumbs span.sep{padding:0 8px;opacity:.6}
.hero-strip h1{
  font-size:clamp(30px,4.4vw,54px);
  color:#fff;margin-bottom:18px;
}
.hero-strip h1 em{font-style:normal;color:var(--c-accent)}
.hero-strip .lede{
  font-size:18px;color:rgba(234,243,239,.86);max-width:700px;margin-bottom:26px;
}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px}
.anchor-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(234,243,239,.1);border:1px solid rgba(234,243,239,.24);
  color:var(--c-dark-text);font-size:14px;font-weight:600;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.anchor-tag:hover{background:rgba(198,242,78,.16);border-color:var(--c-accent);transform:translateY(-2px)}
.anchor-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ---------- Icon cards ---------- */
.icon-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.icon-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:var(--sh-1),var(--sh-2);
  transition:transform .25s ease,box-shadow .25s ease;
  position:relative;overflow:hidden;
}
.icon-card::before{
  content:"";position:absolute;left:28px;top:0;width:44px;height:3px;
  background:var(--c-accent);border-radius:0 0 4px 4px;
}
.icon-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.icon-card .ico{
  width:60px;height:60px;border-radius:16px;background:var(--c-tag-bg);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.icon-card .ico svg{width:40px;height:40px;stroke:var(--c-primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.icon-card h3{font-size:21px;margin-bottom:12px}
.icon-card p{font-size:15px;color:var(--c-muted);line-height:1.85}
.icon-card .mini-tag{
  display:inline-block;margin-top:18px;font-size:13px;font-weight:700;
  color:var(--c-primary);background:var(--c-tag-bg);
  border-radius:var(--r-pill);padding:4px 12px;
}
@media (max-width:991px){.icon-cards{grid-template-columns:1fr 1fr}}
@media (max-width:767px){.icon-cards{grid-template-columns:1fr}}

/* ---------- Showcase ---------- */
.showcase{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.showcase-media{position:relative}
.showcase-media img{border-radius:var(--r-img);width:100%;aspect-ratio:5/4;object-fit:cover;box-shadow:var(--sh-2)}
.showcase-media .float-tag{
  position:absolute;left:20px;bottom:20px;
  background:rgba(15,59,51,.92);color:#fff;border-radius:var(--r-pill);
  padding:8px 18px;font-size:13px;font-weight:700;letter-spacing:.04em;
}
.spec-list{display:grid;gap:2px}
.spec-item{
  display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--c-line);
  transition:padding-left .22s ease;
}
.spec-item:first-child{border-top:1px solid var(--c-line)}
.spec-item:hover{padding-left:8px}
.spec-item .num{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--c-primary);
  background:var(--c-tag-bg);border-radius:8px;width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.spec-item h4{font-size:19px;margin-bottom:6px}
.spec-item p{font-size:15px;color:var(--c-muted)}
@media (max-width:991px){.showcase{grid-template-columns:1fr;gap:32px}}

/* ---------- Stats band ---------- */
.band{
  background:var(--c-primary);color:var(--c-dark-text);
  border-radius:26px;padding:48px 40px;
}
.band-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:flex-end;margin-bottom:34px}
.band-head h2{font-size:clamp(22px,2.6vw,32px);color:#fff}
.band-head p{color:rgba(234,243,239,.76);font-size:15px;max-width:520px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid rgba(234,243,239,.18);padding-top:32px}
.stat-grid .stat .val{font-family:var(--font-num);font-size:clamp(28px,3.6vw,44px);font-weight:800;color:var(--c-accent);line-height:1.1}
.stat-grid .stat .lab{font-size:14px;color:rgba(234,243,239,.76);margin-top:6px}
@media (max-width:991px){.stat-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.band{padding:34px 22px}.band-head{margin-bottom:24px}}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(198,242,78,.9)}
.step .idx{font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--c-muted);margin-bottom:14px;display:block}
.step h4{font-size:18px;margin-bottom:10px}
.step p{font-size:15px;color:var(--c-muted)}
@media (max-width:991px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.steps{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.faq-list{display:grid;gap:12px}
details.faq{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
details.faq[open]{border-color:rgba(198,242,78,.95);box-shadow:var(--sh-2)}
details.faq summary{
  cursor:pointer;list-style:none;padding:20px 56px 20px 22px;
  font-size:17px;font-weight:700;position:relative;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-primary);transition:transform .25s ease;
}
details.faq[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg)}
details.faq .ans{padding:0 22px 22px;color:var(--c-muted);font-size:15.5px;line-height:1.9}
@media (max-width:991px){.faq-wrap{grid-template-columns:1fr;gap:28px}}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:26px;
  box-shadow:var(--sh-2);padding:52px 44px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
}
.cta-block h2{font-size:clamp(24px,3vw,36px);margin-bottom:14px}
.cta-block p{color:var(--c-muted);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-side{display:flex;flex-direction:column;align-items:center;gap:12px}
.qr-box{
  width:120px;height:120px;border-radius:14px;background:#fff;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  display:grid;place-items:center;overflow:hidden;
}
.qr-box .qr-grid{
  width:88px;height:88px;opacity:.85;
  background-image:
    repeating-linear-gradient(0deg,var(--c-primary) 0 6px,transparent 6px 12px),
    repeating-linear-gradient(90deg,var(--c-primary) 0 6px,transparent 6px 12px);
}
.cta-side small{font-size:13px;color:var(--c-muted)}
@media (max-width:991px){.cta-block{grid-template-columns:1fr;padding:38px 26px}}
@media (max-width:520px){.cta-actions .btn{width:100%}}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-primary-deep);color:var(--c-dark-text);padding:72px 0 28px;margin-top:var(--sp-section)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(234,243,239,.16)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:15px;color:rgba(234,243,239,.72);max-width:340px;line-height:1.9}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col li,.footer-col a{font-size:14.5px;color:rgba(234,243,239,.74)}
.footer-col a{transition:color .2s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:24px;font-size:13.5px;color:rgba(234,243,239,.6);
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#0F3B33;
  --c-primary-2:#14503F;
  --c-primary-3:#0B2C26;
  --c-accent:#C6F24E;
  --c-accent-deep:#A8D633;
  --c-orange:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-card:#FFFFFF;
  --c-ink:#17201E;
  --c-muted:#5B6A66;
  --c-line:#E6E7E2;
  --c-deep-text:#EAF3EF;
  --c-tag:#E8F7D6;
  --c-ok:#2E9E6B;
  --c-warn:#D98A16;
  --c-err:#C6432F;
  --r-card:18px;
  --r-btn:12px;
  --r-img:20px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(15,59,51,.06);
  --sh-2:0 12px 32px rgba(15,59,51,.08);
  --sh-hover:0 18px 48px rgba(15,59,51,.14);
  --sp-section:96px;
  --w-container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--w-container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1200px){.container{padding:0}}
.section{padding:var(--sp-section) 0}
@media (max-width:991px){.section{padding:72px 0}:root{--sp-section:72px}}
@media (max-width:767px){.section{padding:56px 0}}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--c-primary);background:var(--c-tag);border-radius:999px;padding:5px 14px;margin-bottom:16px}
.section-head h2{font-size:clamp(24px,3vw,38px);margin-bottom:14px}
.section-head p{color:var(--c-muted);font-size:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--c-accent);color:var(--c-primary);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-deep);transform:translateX(2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:rgba(15,59,51,.06)}
.btn-ghost:active{transform:scale(.98)}
.btn-ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px}
@media (max-width:767px){.btn{min-height:44px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,59,51,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(234,243,239,.12);
}
.nav-inner{
  max-width:var(--w-container);margin:0 auto;padding:0 20px;
  height:68px;display:flex;align-items:center;gap:20px;
  transition:height .25s ease;
}
@media (min-width:768px){.nav-inner{padding:0 32px}}
@media (min-width:1200px){.nav-inner{padding:0}}
.site-header.is-scrolled .nav-inner{height:58px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:26px;height:26px;border-radius:8px 3px 8px 3px;
  background:linear-gradient(135deg,var(--c-accent) 0%,var(--c-accent) 48%,var(--c-orange) 48%,var(--c-orange) 100%);
  box-shadow:0 4px 12px rgba(198,242,78,.28);
  flex:none;
}
.logo-text{color:#fff;font-size:17px;font-weight:800;letter-spacing:.01em}
@media (max-width:479px){.logo-text{font-size:15px}}
.nav-links{display:none;align-items:center;gap:26px;margin-left:12px}
.nav-links a{
  position:relative;font-size:15px;letter-spacing:.02em;color:rgba(234,243,239,.82);
  padding:8px 0;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:2px;width:100%;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-accent)}
.nav-links a.active::after{transform:scaleX(1)}
@media (min-width:1080px){.nav-links{display:flex}}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search{position:relative;display:flex;align-items:center}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-deep-text);border:1px solid rgba(234,243,239,.2);transition:background-color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:rgba(234,243,239,.12);border-color:rgba(234,243,239,.4)}
.icon-btn svg{width:18px;height:18px}
.search-field{
  position:absolute;right:0;top:50%;transform:translateY(-50%) scaleX(.85);
  transform-origin:right center;opacity:0;pointer-events:none;
  width:240px;transition:opacity .22s ease,transform .22s ease;
}
.nav-search.open .search-field{opacity:1;transform:translateY(-50%) scaleX(1);pointer-events:auto}
.search-field input{
  width:100%;height:40px;border-radius:var(--r-input);border:1px solid rgba(234,243,239,.35);
  background:rgba(11,44,38,.9);color:#fff;padding:0 14px;font-size:14px;
}
.search-field input::placeholder{color:rgba(234,243,239,.6)}
.search-field input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(198,242,78,.18)}
.menu-btn{
  width:40px;height:40px;border-radius:10px;display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;border:1px solid rgba(234,243,239,.2);
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--c-deep-text);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.menu-btn:hover{background:rgba(234,243,239,.12)}
@media (min-width:1080px){.menu-btn{display:none}}
.nav-cta{display:none}
@media (min-width:768px){.nav-cta{display:inline-flex}}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,44,38,.55);opacity:0;pointer-events:none;
  transition:opacity .25s ease;z-index:90;
}
.drawer-mask.show{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:380px;z-index:100;
  background:var(--c-primary-3);color:var(--c-deep-text);
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:22px 24px 32px;overflow-y:auto;
}
.mobile-drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-head .logo-text{font-size:16px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.drawer-nav a{font-size:17px;line-height:3;color:rgba(234,243,239,.88);border-bottom:1px solid rgba(234,243,239,.12)}
.drawer-nav a.active{color:var(--c-accent);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:24px}
.to-top{font-size:15px;color:rgba(234,243,239,.7);text-align:left}
.to-top:hover{color:var(--c-accent)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0;font-size:14px;color:var(--c-muted)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumbs li{display:flex;align-items:center;gap:6px;min-width:0}
.crumbs li:not(:last-child)::after{content:"/";color:rgba(91,106,102,.55)}
.crumbs a{color:var(--c-muted);transition:color .2s ease}
.crumbs a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.crumbs .current{color:var(--c-ink);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;margin-top:22px;border-radius:var(--r-card);overflow:hidden;
  background:var(--c-primary);color:var(--c-deep-text);
  background-image:linear-gradient(115deg,rgba(11,44,38,.96) 0%,rgba(15,59,51,.88) 52%,rgba(15,59,51,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:52px 28px;
}
@media (min-width:768px){.article-hero{padding:64px 56px}}
.article-hero .hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;
  color:var(--c-primary);background:var(--c-accent);border-radius:999px;padding:5px 14px;margin-bottom:20px;
}
.article-hero h1{font-size:clamp(27px,4vw,46px);color:#fff;max-width:880px}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px;
  font-size:14px;color:rgba(234,243,239,.78);
}
.article-meta .sep{width:1px;height:14px;background:rgba(234,243,239,.3)}
.article-meta .cat{color:var(--c-accent);font-weight:700}

/* ---------- 布局 ---------- */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;
  padding:44px 0 var(--sp-section);
  align-items:start;
}
@media (max-width:1199px){.article-wrap{grid-template-columns:minmax(0,1fr);gap:32px}}
.post-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1),var(--sh-2);padding:28px 22px;
}
@media (min-width:768px){.post-card{padding:56px}}
.inline-download{display:block;margin-bottom:24px}
@media (min-width:1200px){.inline-download{display:none}}

/* ---------- 正文排版 ---------- */
.post-body{max-width:740px;font-size:17px;line-height:1.9;color:var(--c-ink);overflow-wrap:break-word}
.post-body > * + *{margin-top:22px}
.post-body p{line-height:1.9}
.post-body h2{font-size:clamp(21px,2.4vw,27px);position:relative;padding-left:16px;margin-top:44px;color:var(--c-ink)}
.post-body h2::before{content:"";position:absolute;left:0;top:.24em;width:4px;height:1em;border-radius:3px;background:var(--c-accent)}
.post-body h3{font-size:19px;margin-top:34px;color:var(--c-primary)}
.post-body h4{font-size:17px;margin-top:26px}
.post-body a{color:var(--c-primary-2);font-weight:600;text-decoration:underline;text-decoration-color:var(--c-accent);text-decoration-thickness:2px;text-underline-offset:4px;transition:color .2s ease}
.post-body a:hover{color:var(--c-primary)}
.post-body strong{font-weight:800}
.post-body blockquote{
  background:rgba(198,242,78,.16);border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-btn) var(--r-btn) 0;padding:18px 22px;color:#2C3B37;font-size:16px;line-height:1.85;
}
.post-body blockquote p{margin:0}
.post-body ul,.post-body ol{padding-left:6px}
.post-body li{position:relative;padding-left:24px;margin-bottom:8px;line-height:1.85;color:#28322F}
.post-body ul > li::before{
  content:"";position:absolute;left:2px;top:.68em;width:8px;height:8px;border-radius:2px;
  background:var(--c-accent);box-shadow:0 0 0 1px rgba(15,59,51,.18);
}
.post-body ol{counter-reset:item}
.post-body ol > li{counter-increment:item}
.post-body ol > li::before{
  content:counter(item,decimal-leading-zero);position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-primary);
  background:var(--c-tag);border-radius:4px;padding:1px 5px;line-height:1.6;
}
.post-body img{border-radius:var(--r-img);box-shadow:var(--sh-1),var(--sh-2);margin:26px auto;width:100%}
.post-body figure{margin:26px 0}
.post-body figcaption{text-align:center;font-size:13px;color:var(--c-muted);margin-top:10px}
.post-body table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.7;border-radius:var(--r-btn);overflow:hidden}
.post-body thead th{background:var(--c-primary);color:#fff;font-weight:700;text-align:left;padding:12px 14px}
.post-body tbody td{padding:12px 14px;border-bottom:1px solid var(--c-line)}
.post-body tbody tr:nth-child(even){background:#FAFBF7}
.post-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0}
.post-body code{background:#F1F3EE;border-radius:6px;padding:2px 6px;font-size:15px;font-family:var(--font-num)}
.post-empty{text-align:center;padding:26px 0 6px}
.post-empty .empty-art{
  width:120px;height:96px;margin:0 auto 22px;border-radius:16px;
  border:2px dashed rgba(15,59,51,.25);display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,#FFFFFF,#F1F4EC);
}
.post-empty .empty-art span{display:block;width:46px;height:4px;border-radius:3px;background:rgba(15,59,51,.2);box-shadow:0 12px 0 rgba(15,59,51,.14),0 -12px 0 rgba(15,59,51,.14)}
.post-empty h2{font-size:24px;margin-bottom:12px;color:var(--c-ink)}
.post-empty p{color:var(--c-muted);margin-bottom:24px}

/* ---------- 标签与文末 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:var(--c-tag);color:var(--c-primary);font-size:14px;font-weight:700;
  transition:background-color .2s ease,transform .2s ease;
}
.tag:hover{background:var(--c-accent);transform:translateY(-2px)}
.back-link{margin-top:26px;display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--c-primary)}
.back-link svg{width:16px;height:16px;transition:transform .2s ease}
.back-link:hover svg{transform:translateX(-4px)}

/* ---------- 侧栏 ---------- */
.article-side{display:none}
@media (min-width:1200px){.article-side{display:block;position:sticky;top:96px}}
.side-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1),var(--sh-2);padding:22px;margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--c-accent)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--c-muted);padding:7px 10px;border-radius:8px;
  border-left:2px solid transparent;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:#F3F6EE;color:var(--c-primary)}
.toc-list a.is-active{color:var(--c-primary);font-weight:700;border-left-color:var(--c-accent);background:#F5F9EC}
.toc-list a.lv3{padding-left:22px;font-size:13px}
.side-download{background:var(--c-primary);color:var(--c-deep-text);border:0}
.side-download h3{color:#fff}
.side-download h3::before{background:var(--c-accent)}
.side-download p{font-size:14px;color:rgba(234,243,239,.78);margin-bottom:16px;line-height:1.8}
.side-download .btn{width:100%}
.side-download .side-meta{margin-top:12px;font-size:12px;color:rgba(234,243,239,.6);font-family:var(--font-num);letter-spacing:.02em}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:991px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.related-grid{grid-template-columns:minmax(0,1fr)}}
.rel-card{
  display:flex;gap:16px;align-items:flex-start;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:14px;padding:16px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-thumb{width:76px;height:76px;flex:none;border-radius:12px;overflow:hidden;background:#EEF1EA}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-body{min-width:0}
.rel-body .rel-cat{font-size:12px;font-weight:700;color:var(--c-primary);background:var(--c-tag);border-radius:999px;padding:3px 10px;display:inline-block;margin-bottom:8px}
.rel-body h3{font-size:16px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body time{font-size:13px;color:var(--c-muted);font-family:var(--font-num)}

/* ---------- 下载 CTA ---------- */
.cta-band{
  background:var(--c-primary);color:var(--c-deep-text);border-radius:var(--r-card);
  padding:44px 26px;position:relative;overflow:hidden;
}
@media (min-width:768px){.cta-band{padding:56px}}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22) 0%,rgba(198,242,78,0) 70%);
}
.cta-inner{position:relative;display:grid;gap:32px;align-items:center;grid-template-columns:minmax(0,1fr);z-index:1}
@media (min-width:900px){.cta-inner{grid-template-columns:minmax(0,1fr) auto}}
.cta-inner h2{font-size:clamp(23px,2.8vw,34px);color:#fff;margin-bottom:12px}
.cta-inner p{color:rgba(234,243,239,.8);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-meta{margin-top:18px;font-size:13px;color:rgba(234,243,239,.62);font-family:var(--font-num);letter-spacing:.02em}
.qr-box{
  width:120px;height:120px;border-radius:14px;background:#fff;padding:10px;flex:none;
  box-shadow:0 12px 30px rgba(0,0,0,.24);display:grid;place-items:center;
}
.qr-code{
  width:100%;height:100%;border-radius:6px;
  background-image:
    repeating-conic-gradient(#0F3B33 0% 25%,#FFFFFF 0% 50%);
  background-size:14px 14px;
  border:3px solid #0F3B33;
}
.qr-caption{text-align:center;font-size:12px;color:rgba(234,243,239,.7);margin-top:10px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item[open]{border-color:rgba(198,242,78,.9);box-shadow:var(--sh-1),var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:17px;font-weight:700;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .mark{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--c-tag);color:var(--c-primary);
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;transition:transform .25s ease,background-color .25s ease;
}
.faq-item[open] summary .mark{transform:rotate(180deg);background:var(--c-accent)}
.faq-item .faq-body{padding:0 22px 22px;color:var(--c-muted);font-size:15.5px;line-height:1.85;max-width:760px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-3);color:var(--c-deep-text);padding:64px 0 28px;margin-top:var(--sp-section)}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:36px}
@media (max-width:991px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}}
@media (max-width:600px){.footer-grid{grid-template-columns:minmax(0,1fr)}}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:rgba(234,243,239,.72);line-height:1.9;max-width:360px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li,.footer-col a{font-size:14.5px;color:rgba(234,243,239,.72);transition:color .2s ease}
.footer-col a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(234,243,239,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(234,243,239,.6);font-family:var(--font-num);letter-spacing:.02em;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F3B33;
  --c-primary-deep:#0A2A24;
  --c-accent:#C6F24E;
  --c-accent-deep:#AFDC36;
  --c-orange:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-card:#FFFFFF;
  --c-line:#E6E7E2;
  --c-ink:#17201E;
  --c-muted:#5B6A66;
  --c-on-dark:#EAF3EF;
  --c-on-dark-muted:rgba(234,243,239,.72);
  --c-success:#2E9E6B;
  --c-warn:#D98A16;
  --c-error:#C6432F;
  --r-card:18px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,51,.06);
  --sh-2:0 12px 32px rgba(15,59,51,.08);
  --sh-hover:0 18px 48px rgba(15,59,51,.14);
  --sp-section:96px;
  --w-container:1200px;
  --nav-h:68px;
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.3;}
p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:3px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1200px){.container{padding:0;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:200;
  height:var(--nav-h);
  background:rgba(15,59,51,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(198,242,78,.14);
  transition:height .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  height:58px;
  background:rgba(10,42,36,.96);
}
.nav-inner{
  height:100%;
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:26px;
  height:26px;
  border-radius:8px;
  background:linear-gradient(135deg,var(--c-accent) 0%,var(--c-accent-deep) 100%);
  position:relative;
  transform:rotate(-8deg);
  box-shadow:0 6px 16px rgba(198,242,78,.28);
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:8px 6px;
  border-radius:3px;
  border:2px solid var(--c-primary);
  border-top-color:transparent;
  border-bottom-color:transparent;
}
.logo-text{
  color:#fff;
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  letter-spacing:.02em;
  color:rgba(234,243,239,.82);
  padding:6px 0;
  transition:color .22s ease;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:1px;
  background:currentColor;
  transition:width .25s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{
  color:var(--c-accent);
  font-weight:700;
}
.nav-links a.active::after{
  width:100%;
  height:2px;
  background:var(--c-accent);
}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-wrap{position:relative;}
.icon-btn{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-pill);
  color:var(--c-on-dark);
  transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.1);color:#fff;}
.icon-btn svg{width:19px;height:19px;}
.search-panel{
  position:absolute;
  top:calc(100% + 10px);
  right:0;
  width:240px;
  background:var(--c-card);
  border-radius:14px;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-hover);
  padding:10px;
  display:none;
}
.search-panel.is-open{display:block;}
.search-panel input{
  width:100%;
  height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  padding:0 14px;
  background:#fff;
  color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-panel input:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 4px rgba(198,242,78,.35);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--c-accent);
  color:var(--c-primary);
  border-radius:var(--r-pill);
  box-shadow:0 8px 22px rgba(198,242,78,.3);
}
.btn-primary:hover{background:var(--c-accent-deep);transform:translateX(2px);}
.btn-primary:active{transform:scale(.98);}
.btn-outline{
  border:1.5px solid var(--c-primary);
  color:var(--c-primary);
  background:transparent;
}
.btn-outline:hover{background:rgba(15,59,51,.06);}
.btn-ghost{
  border:1.5px solid rgba(234,243,239,.6);
  color:#fff;
  background:transparent;
  border-radius:var(--r-pill);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px;}
.hamburger{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.hamburger span{
  display:block;
  width:20px;
  height:2px;
  background:var(--c-on-dark);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer{
  position:fixed;
  top:0;
  right:0;
  z-index:190;
  width:82vw;
  max-width:360px;
  height:100%;
  background:var(--c-primary-deep);
  transform:translateX(105%);
  transition:transform .32s ease;
  padding:calc(var(--nav-h) + 24px) 26px 32px;
  display:flex;
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer a{
  color:var(--c-on-dark);
  font-size:17px;
  line-height:3;
  border-bottom:1px solid rgba(234,243,239,.12);
}
.drawer a.active{color:var(--c-accent);}
.drawer .btn{margin-top:22px;width:100%;}
.drawer-backdrop{
  position:fixed;
  inset:0;
  background:rgba(10,42,36,.5);
  z-index:180;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}

/* ---------- 通用 ---------- */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--c-primary);
  background:#E8F7D6;
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:18px;
}
.eyebrow.on-dark{
  background:rgba(198,242,78,.16);
  color:var(--c-accent);
}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,3vw,38px);
  margin-bottom:14px;
}
.section-head p{color:var(--c-muted);font-size:16.5px;max-width:700px;}

/* ---------- 分类 Hero 条带 ---------- */
.cat-hero{
  position:relative;
  background:var(--c-primary);
  color:var(--c-on-dark);
  padding:72px 0 64px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(198,242,78,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(198,242,78,.08) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.6;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-on-dark-muted);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumb a{color:var(--c-on-dark-muted);}
.crumb a:hover{color:var(--c-accent);}
.crumb span.sep{opacity:.5;}
.cat-hero h1{
  font-size:clamp(28px,4vw,48px);
  max-width:820px;
  margin-bottom:18px;
}
.cat-hero .lead{
  max-width:720px;
  font-size:17px;
  color:var(--c-on-dark-muted);
}
.anchor-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.anchor-row a{
  font-size:14px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(234,243,239,.28);
  color:var(--c-on-dark);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.anchor-row a:hover{
  background:var(--c-accent);
  border-color:var(--c-accent);
  color:var(--c-primary);
}

/* ---------- 粘性标题 + 清单流 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
}
@media (min-width:992px){
  .split{grid-template-columns:340px 1fr;gap:64px;align-items:start;}
}
.sticky-col{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:30px 26px;
}
@media (min-width:992px){
  .sticky-col{position:sticky;top:104px;}
}
.sticky-col h2{
  font-size:24px;
  margin-bottom:14px;
}
.sticky-col p{color:var(--c-muted);font-size:15.5px;}
.mini-fig{
  margin-top:22px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--c-line);
}
.mini-fig img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.mini-fig figcaption{
  font-size:13px;
  color:var(--c-muted);
  padding:10px 12px;
  background:#FAFAF7;
  text-align:center;
}
.sticky-meta{
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  color:var(--c-muted);
}
.sticky-meta strong{color:var(--c-primary);font-family:var(--font-num);font-size:18px;margin-right:6px;}

.timeline{display:flex;flex-direction:column;}
.timeline-item{
  display:grid;
  grid-template-columns:64px 1fr 28px;
  gap:18px;
  align-items:start;
  padding:26px 6px;
  border-bottom:1px solid var(--c-line);
  transition:transform .25s ease,background .25s ease;
}
.timeline-item:first-child{border-top:1px solid var(--c-line);}
.timeline-item:hover{
  transform:translateX(4px);
  background:#FFFFFF;
}
.tl-num{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  color:var(--c-primary);
  letter-spacing:.02em;
}
.tl-num::after{
  content:"";
  display:block;
  width:26px;
  height:3px;
  margin-top:8px;
  border-radius:2px;
  background:var(--c-accent);
}
.timeline-item h3{
  font-size:19px;
  margin-bottom:8px;
}
.timeline-item p{
  color:var(--c-muted);
  font-size:15.5px;
  max-width:680px;
}
.tl-arrow{
  align-self:center;
  color:var(--c-primary);
  opacity:.35;
  transition:opacity .2s ease,transform .2s ease;
}
.timeline-item:hover .tl-arrow{opacity:1;transform:translateX(3px);}

/* ---------- 规格对照 ---------- */
.spec-section{background:#FFFFFF;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.spec-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:768px){
  .spec-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
.spec-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px 26px;
  transition:box-shadow .28s ease,transform .28s ease;
}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.spec-card-head{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:18px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:8px;
}
.spec-badge{
  width:38px;
  height:38px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--c-primary);
  color:var(--c-accent);
  font-family:var(--font-num);
  font-weight:700;
  font-size:14px;
}
.spec-card-head h3{font-size:20px;}
.spec-card-head small{display:block;font-size:13px;color:var(--c-muted);font-weight:400;}
.kv{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:15px;
}
.kv:last-child{border-bottom:0;}
.kv dt{color:var(--c-muted);}
.kv dd{
  margin:0;
  font-family:var(--font-num);
  font-weight:700;
  color:var(--c-primary);
  text-align:right;
  font-size:15.5px;
}
.kv dd span{font-family:var(--font-sans);font-weight:400;color:var(--c-muted);font-size:13.5px;}

/* ---------- 图文块 ---------- */
.figure-row{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
}
@media (min-width:992px){
  .figure-row{grid-template-columns:1.05fr 1fr;gap:56px;}
}
.figure-media{
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.figure-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .5s ease;
}
.figure-media:hover img{transform:scale(1.04);}
.figure-body h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:16px;
}
.figure-body p{color:var(--c-muted);font-size:16px;margin-bottom:22px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  color:var(--c-ink);
}
.check-list li::before{
  content:"";
  flex:0 0 20px;
  height:20px;
  margin-top:6px;
  border-radius:6px;
  background:var(--c-accent);
  box-shadow:inset 0 0 0 2px rgba(15,59,51,.85);
}
.check-list li b{font-weight:700;}
.check-list li small{display:block;color:var(--c-muted);font-size:14px;}

/* ---------- 流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
  counter-reset:step;
}
@media (min-width:768px){
  .steps{grid-template-columns:repeat(4,1fr);gap:18px;}
}
.step{
  position:relative;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 22px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  display:block;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  color:var(--c-primary);
  background:var(--c-accent);
  border-radius:8px;
  width:44px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--c-muted);}

/* ---------- 数据带 ---------- */
.stat-band{
  background:var(--c-primary);
  color:var(--c-on-dark);
  border-radius:24px;
  padding:48px 32px;
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:768px){
  .stat-band{grid-template-columns:repeat(3,1fr);gap:24px;padding:56px 48px;}
}
.stat{text-align:left;border-left:2px solid rgba(198,242,78,.4);padding-left:20px;}
.stat strong{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(32px,4vw,48px);
  font-weight:700;
  color:var(--c-accent);
  line-height:1.1;
  letter-spacing:-.01em;
}
.stat span{display:block;margin-top:8px;font-size:15px;color:var(--c-on-dark-muted);}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:860px;
}
.faq-item{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:16px;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item[open]{
  border-color:rgba(198,242,78,.9);
  box-shadow:var(--sh-2);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:22px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:17px;
  font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 28px;
  height:28px;
  border-radius:9px;
  background:#E8F7D6;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:700;
  transition:transform .25s ease,background .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--c-accent);}
.faq-body{
  padding:0 24px 24px;
  color:var(--c-muted);
  font-size:15.5px;
  max-width:720px;
}

/* ---------- CTA ---------- */
.cta{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  color:var(--c-on-dark);
  background:var(--c-primary-deep);
  padding:56px 28px;
}
@media (min-width:768px){.cta{padding:72px 64px;}}
.cta::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  opacity:.28;
}
.cta::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(10,42,36,.94) 0%,rgba(10,42,36,.72) 55%,rgba(10,42,36,.5) 100%);
}
.cta-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  align-items:center;
}
@media (min-width:992px){
  .cta-inner{grid-template-columns:1fr 148px;gap:56px;}
}
.cta h2{font-size:clamp(24px,3.2vw,38px);margin-bottom:14px;}
.cta p{color:var(--c-on-dark-muted);max-width:600px;margin-bottom:26px;font-size:16px;}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;}
.qr-box{
  width:120px;
  height:120px;
  border-radius:18px;
  background:rgba(234,243,239,.1);
  border:1px dashed rgba(198,242,78,.55);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  color:var(--c-on-dark-muted);
  padding:12px;
  line-height:1.6;
}
.cta-note{
  margin-top:18px;
  font-size:13.5px;
  color:rgba(234,243,239,.6);
  font-family:var(--font-num);
  letter-spacing:.02em;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary);
  color:var(--c-on-dark);
  padding:72px 0 28px;
  margin-top:var(--sp-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(234,243,239,.14);
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{
  color:var(--c-on-dark-muted);
  font-size:15px;
  max-width:340px;
}
.footer-col h4{
  font-size:16px;
  margin-bottom:16px;
  color:#fff;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col li{
  font-size:14.5px;
  color:var(--c-on-dark-muted);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  padding-top:24px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(234,243,239,.6);
}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);}
.js .reveal.in{
  opacity:1;
  transform:none;
  transition:opacity .6s ease,transform .6s ease;
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1;transform:none;}
  *{transition:none!important;animation:none!important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:20px;}
  .nav-links a{font-size:14.5px;}
}
@media (max-width:991px){
  :root{--sp-section:72px;}
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .logo-text{font-size:16px;}
  .timeline-item{grid-template-columns:52px 1fr;gap:14px;}
  .tl-arrow{display:none;}
}
@media (max-width:767px){
  :root{--sp-section:56px;--nav-h:56px;}
  body{padding-top:56px;}
  .nav-actions .btn-sm{display:none;}
  .cat-hero{padding:52px 0 46px;}
  .cat-hero .lead{font-size:16px;}
  .sticky-col{padding:24px 20px;}
  .spec-card{padding:24px 20px;}
  .stat-band{padding:36px 22px;border-radius:20px;}
  .cta{padding:44px 22px;border-radius:20px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:479px){
  .logo-text{font-size:15px;}
  .logo-mark{width:22px;height:22px;}
  .anchor-row a{font-size:13px;padding:7px 13px;}
  .timeline-item{padding:22px 0;}
  .tl-num{font-size:22px;}
  .btn{width:100%;}
  .cta-btns .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --c-primary:#0F3B33;
  --c-primary-deep:#0A2A24;
  --c-accent:#C6F24E;
  --c-orange:#FF6A3D;
  --c-ink:#17201E;
  --c-muted:#5B6A66;
  --c-bg:#F6F6F3;
  --c-card:#FFFFFF;
  --c-line:#E6E7E2;
  --c-soft:#E8F7D6;
  --c-on-dark:#EAF3EF;
  --c-success:#2E9E6B;
  --c-warn:#D98A16;
  --c-error:#C6432F;
  --r-card:18px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:20px;
  --sh-1:0 1px 2px rgba(15,59,51,.06),0 12px 32px rgba(15,59,51,.08);
  --sh-2:0 18px 48px rgba(15,59,51,.14);
  --sp-section:96px;
  --w-container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px}

.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){ .container{padding:0 32px} }
@media (min-width:1200px){ .container{padding:0 24px} }

.section{padding:56px 0}
@media (min-width:768px){ .section{padding:72px 0} }
@media (min-width:992px){ .section{padding:var(--sp-section) 0} }

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(15,59,51,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(234,243,239,.12);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(10,42,36,.97);box-shadow:0 12px 32px rgba(10,42,36,.28)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;transition:height .3s ease}
.site-header.scrolled .header-inner{height:58px}

.logo{display:inline-flex;align-items:center;gap:10px;flex:none;min-height:44px}
.logo-mark{
  width:26px;height:26px;flex:none;border-radius:6px;
  background:var(--c-accent);position:relative;transform:skewX(-12deg);
  box-shadow:0 4px 14px rgba(198,242,78,.35);
}
.logo-mark::after{
  content:"";position:absolute;inset:7px 9px;border-radius:2px;background:var(--c-primary);
}
.logo-text{
  font-size:17px;font-weight:800;letter-spacing:.01em;color:#fff;white-space:nowrap;
}
@media (max-width:400px){ .logo-text{font-size:15px} }

.nav-links{display:none;align-items:center;gap:6px;margin-left:14px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 12px;
  font-size:15px;letter-spacing:.02em;color:rgba(234,243,239,.82);
  transition:color .25s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-accent)}
.nav-links a.active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid rgba(234,243,239,.22);color:var(--c-on-dark);
  transition:background .25s ease,border-color .25s ease,transform .2s ease;
}
.icon-btn:hover{background:rgba(234,243,239,.12);border-color:rgba(234,243,239,.4)}
.icon-btn:active{transform:scale(.96)}
.icon-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;letter-spacing:.01em;
  transition:background .25s ease,color .25s ease,transform .2s ease,box-shadow .25s ease,border-color .25s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c-accent);color:var(--c-primary-deep);border-radius:var(--r-pill);box-shadow:0 8px 22px rgba(198,242,78,.28)}
.btn-primary:hover{background:#d5fa6b;transform:translateX(2px);box-shadow:0 14px 30px rgba(198,242,78,.34)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(234,243,239,.55);border-radius:var(--r-pill)}
.btn-ghost:hover{background:rgba(234,243,239,.12);border-color:#fff}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);border-radius:var(--r-pill)}
.btn-outline:hover{background:rgba(15,59,51,.06);transform:translateX(2px)}
.btn-sm{min-height:42px;padding:0 20px;font-size:15px}
.btn-block{width:100%}
@media (max-width:767px){ .btn{min-height:44px} }

.header-cta{display:none}
@media (min-width:992px){ .header-cta{display:inline-flex} }

.menu-toggle{display:inline-flex}
@media (min-width:992px){ .menu-toggle{display:none} }
@media (min-width:992px){ .nav-links{display:flex} }

/* search panel */
.search-panel{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(10,42,36,.98);
  border-bottom:1px solid rgba(234,243,239,.14);
  padding:16px 0;display:none;
}
.search-panel.open{display:block}
.search-form{display:flex;gap:10px;align-items:center}
.search-form input{
  flex:1;height:48px;border-radius:10px;border:1px solid rgba(234,243,239,.24);
  background:rgba(234,243,239,.08);color:#fff;padding:0 16px;font-size:15px;
}
.search-form input::placeholder{color:rgba(234,243,239,.55)}
.search-form input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(198,242,78,.18)}
.search-tip{margin-top:10px;font-size:13px;color:rgba(234,243,239,.6)}

/* mobile drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,42,36,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;z-index:120;
  background:var(--c-primary-deep);color:var(--c-on-dark);
  transform:translateX(100%);transition:transform .32s ease;
  display:flex;flex-direction:column;padding:20px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-accent);letter-spacing:.04em}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid rgba(234,243,239,.14)}
.drawer-nav a{
  font-size:17px;line-height:3;color:rgba(234,243,239,.9);
  border-bottom:1px solid rgba(234,243,239,.12);
}
.drawer-nav a.active{color:var(--c-accent)}
.drawer-bottom{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer-top{font-size:15px;color:rgba(234,243,239,.72);text-align:center;padding:12px 0}
body.no-scroll{overflow:hidden}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--c-primary-deep);
  padding:calc(68px + 52px) 0 64px;
  color:var(--c-on-dark);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(10,42,36,.94) 0%,rgba(15,59,51,.86) 46%,rgba(15,59,51,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-inner{position:relative;z-index:1;max-width:860px}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:rgba(234,243,239,.66);margin-bottom:18px;
}
.crumb a:hover{color:var(--c-accent)}
.crumb .sep{opacity:.5}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);
  color:#fff;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--c-accent)}
.hero-sub{
  font-size:17px;line-height:1.9;color:rgba(234,243,239,.82);
  max-width:700px;margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag-link{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:var(--r-pill);font-size:14px;
  background:rgba(234,243,239,.1);border:1px solid rgba(234,243,239,.22);
  color:var(--c-on-dark);transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.tag-link:hover{background:rgba(198,242,78,.16);border-color:var(--c-accent);color:var(--c-accent)}
.hero-meta{
  margin-top:26px;padding-top:20px;border-top:1px solid rgba(234,243,239,.16);
  display:flex;flex-wrap:wrap;gap:24px;font-size:14px;color:rgba(234,243,239,.7);
}
.hero-meta b{color:var(--c-accent);font-family:var(--font-num);font-size:18px;letter-spacing:.02em}

/* ---------- section head ---------- */
.sec-head{max-width:760px;margin-bottom:36px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);margin-bottom:12px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}
.sec-title{font-size:clamp(24px,3vw,38px);margin-bottom:14px}
.sec-desc{font-size:16px;color:var(--c-muted);line-height:1.9}

/* ---------- alternating rows ---------- */
.alt-rows{display:flex;flex-direction:column;gap:40px}
@media (min-width:992px){ .alt-rows{gap:64px} }
.alt-row{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  padding:20px;
  transition:box-shadow .3s ease,transform .3s ease;
}
.alt-row:hover{box-shadow:var(--sh-2);transform:translateY(-4px)}
.alt-row:hover .alt-media img{transform:scale(1.04)}
@media (min-width:768px){
  .alt-row{grid-template-columns:1fr 1fr;gap:32px;padding:28px}
  .alt-row.reverse .alt-media{order:2}
  .alt-row.reverse .alt-body{order:1}
}
@media (min-width:992px){ .alt-row{gap:44px;padding:32px} }

.alt-media{
  border-radius:var(--r-img);overflow:hidden;background:#dfe3dd;
  aspect-ratio:4/3;
}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.alt-body{padding:0 4px}
@media (min-width:992px){ .alt-body{padding:0 8px} }

.stamp{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:32px;border-radius:6px;
  background:var(--c-primary);color:var(--c-accent);
  font-family:var(--font-num);font-size:16px;font-weight:700;letter-spacing:.04em;
  margin-bottom:16px;
}
.alt-body h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:12px}
.alt-body p{font-size:16px;color:var(--c-muted);line-height:1.9}
.tick-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.tick-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--c-ink);
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:11px;width:12px;height:12px;
  border-radius:4px;background:var(--c-soft);border:1.5px solid var(--c-primary);
}
.tick-list li::after{
  content:"";position:absolute;left:4px;top:15px;width:5px;height:3px;
  border-left:1.6px solid var(--c-primary);border-bottom:1.6px solid var(--c-primary);
  transform:rotate(-45deg);
}

/* ---------- steps ---------- */
.steps-panel{
  background:linear-gradient(180deg,#ffffff 0%,#f1f5ec 100%);
  border:1px solid var(--c-line);border-radius:24px;
  padding:28px 20px;
}
@media (min-width:768px){ .steps-panel{padding:40px 32px} }
.steps-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){ .steps-grid{grid-template-columns:1fr 1fr} }
@media (min-width:992px){ .steps-grid{grid-template-columns:repeat(4,1fr)} }
.step-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{
  font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-primary);
  letter-spacing:.02em;line-height:1;margin-bottom:14px;position:relative;display:inline-block;
}
.step-num::after{content:"";position:absolute;left:0;bottom:-8px;width:26px;height:3px;background:var(--c-accent);border-radius:3px}
.step-item h3{font-size:19px;margin-bottom:10px}
.step-item p{font-size:15px;color:var(--c-muted);line-height:1.85}

/* ---------- checklist ---------- */
.check-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:8px 20px;
}
@media (min-width:768px){ .check-card{padding:12px 28px} }
.check-row{
  display:grid;grid-template-columns:auto 1fr;gap:14px 18px;align-items:start;
  padding:20px 0;border-bottom:1px dashed var(--c-line);
}
.check-row:last-child{border-bottom:0}
.check-row .idx{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--c-primary);
  background:var(--c-soft);border-radius:8px;padding:4px 10px;line-height:1.6;
}
.check-row h3{font-size:18px;margin-bottom:8px}
.check-row p{font-size:15px;color:var(--c-muted);line-height:1.85}
.status{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:13px;padding:3px 12px;border-radius:var(--r-pill);
  background:var(--c-soft);color:var(--c-primary);
}
.status.warn{background:#FDF1DC;color:var(--c-warn)}
.status.err{background:#FBE9E5;color:var(--c-error)}
.status.ok{background:#E4F5EC;color:var(--c-success)}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
  transition:box-shadow .3s ease;
}
.faq-item:hover{box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:8px;
  background:var(--c-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;line-height:1;
  transition:transform .3s ease,background .3s ease;
}
.faq-item[open] .faq-icon{background:var(--c-accent);transform:rotate(180deg)}
.faq-answer{padding:0 22px 22px;font-size:16px;color:var(--c-muted);line-height:1.9}

/* ---------- cta ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--c-primary-deep);color:var(--c-on-dark);
  border-radius:24px;padding:40px 24px;
}
@media (min-width:768px){ .cta-block{padding:56px 48px} }
.cta-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(120deg,rgba(10,42,36,.95),rgba(15,59,51,.78)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:992px){ .cta-inner{grid-template-columns:1.4fr auto} }
.cta-inner h2{font-size:clamp(24px,3vw,36px);color:#fff;margin-bottom:14px}
.cta-inner p{font-size:16px;color:rgba(234,243,239,.82);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.cta-fine{margin-top:16px;font-size:13px;color:rgba(234,243,239,.62)}
.qr-box{
  width:140px;height:140px;border-radius:18px;flex:none;
  background:rgba(234,243,239,.1);border:1px solid rgba(234,243,239,.28);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  text-align:center;
}
.qr-box svg{width:56px;height:56px;stroke:var(--c-accent);fill:none;stroke-width:1.6}
.qr-box span{font-size:12px;color:rgba(234,243,239,.78);line-height:1.5;padding:0 10px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:var(--c-on-dark);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr} }
@media (min-width:992px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px} }
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:rgba(234,243,239,.7);line-height:1.9;max-width:360px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li,.footer-col a{font-size:14px;color:rgba(234,243,239,.72);transition:color .25s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(234,243,239,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(234,243,239,.58);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* back to top */
.to-top{
  position:fixed;right:16px;bottom:20px;z-index:90;
  width:46px;height:46px;border-radius:14px;
  background:var(--c-primary);color:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease,transform .3s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px)}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}