/* roulang page: index */
:root{
  --ink:#0E1412;
  --ink-2:#16211D;
  --lime:#C6F24E;
  --coral:#FF6A3D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E4E1D8;
  --text:#14181A;
  --muted:#6B7370;
  --line-dark:rgba(255,255,255,.08);
  --text-dark:#E8ECE9;
  --muted-dark:#9AA5A0;
  --img:#E9E6DE;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-tag:6px;
  --shadow:0 1px 2px rgba(14,20,18,.04);
  --shadow-hover:0 12px 28px -12px rgba(14,20,18,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-0.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--lime);color:var(--ink)}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
@media (min-width:1200px){.container{max-width:1200px}}

a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(14,20,18,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(11,16,14,.97);border-bottom-color:var(--line-dark)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:12px;height:12px;border-radius:3px;background:var(--lime);flex:none}
.brand-text{display:flex;align-items:baseline;gap:6px;line-height:1;color:#fff}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.02em}
.brand-sub{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted-dark);text-transform:uppercase}
.brand:hover .brand-sub{color:var(--lime)}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;color:var(--muted-dark);font-size:15px;font-weight:600;
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  min-width:132px;height:44px;padding:0 22px;
  background:var(--lime);color:var(--ink);
  font-size:15px;font-weight:700;border-radius:999px;border:1px solid var(--lime);
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-cta:hover{background:#b6e63c;transform:translateY(-2px);box-shadow:0 10px 22px -12px rgba(198,242,78,.8)}
.nav-toggle{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-dark);border-radius:10px;color:#fff;font-size:16px;
}
.mobile-drawer{
  position:fixed;inset:var(--nav-h) 0 auto 0;background:var(--ink-2);
  border-bottom:1px solid var(--line-dark);
  padding:10px 24px 22px;
  transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  z-index:1039;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
.mobile-drawer a{
  display:flex;align-items:center;min-height:52px;
  color:var(--text-dark);font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line-dark);position:relative;padding-left:14px;
}
.mobile-drawer a::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:transparent;
}
.mobile-drawer a.is-active{color:#fff}
.mobile-drawer a.is-active::before{background:var(--lime)}
.mobile-drawer .drawer-cta{
  margin-top:18px;width:100%;height:48px;border-radius:999px;justify-content:center;
  background:var(--lime);color:var(--ink);font-weight:700;border-bottom:0;padding-left:0;
}
.mobile-drawer .drawer-cta::before{display:none}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-light{background:var(--paper)}
.section-white{background:#fff}
.section-dark{background:var(--ink);color:var(--text-dark)}
.section-dark h2,.section-dark h3{color:#fff}
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px;
}
.section-dark .sec-head .eyebrow{color:var(--lime)}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;line-height:1.25}
.sec-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-dark .sec-head p{color:var(--muted-dark)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px}
.sec-head-row .sec-head{margin-bottom:0}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--text);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.text-link i{transition:transform .2s var(--ease)}
.text-link:hover{border-bottom-color:var(--lime)}
.text-link:hover i{transform:translateX(4px)}
.section-dark .text-link{color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--ink);color:var(--text-dark);
  padding:96px 0 0;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,20,18,.72) 0%,rgba(14,20,18,.92) 62%,var(--ink) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-bottom:64px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--lime);
  margin-bottom:20px;
}
.hero-eyebrow span.dot{width:6px;height:6px;border-radius:50%;background:var(--coral)}
.hero h1{
  font-size:clamp(2rem,4.6vw,3.5rem);font-weight:800;letter-spacing:-.03em;line-height:1.15;color:#fff;
}
.hero h1 .hl{
  position:relative;display:inline-block;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:6px;background:var(--lime);opacity:.32;border-radius:3px;
}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:var(--muted-dark);max-width:460px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn-primary-lg{
  display:inline-flex;align-items:center;gap:10px;
  height:48px;padding:0 28px;border-radius:999px;
  background:var(--lime);color:var(--ink);font-size:16px;font-weight:700;border:1px solid var(--lime);
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary-lg:hover{background:#b6e63c;transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(198,242,78,.9)}
.btn-ghost-lg{
  display:inline-flex;align-items:center;gap:10px;
  height:48px;padding:0 26px;border-radius:10px;
  background:transparent;color:#fff;font-size:16px;font-weight:600;
  border:1px solid rgba(255,255,255,.28);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.btn-ghost-lg:hover{border-color:var(--lime);background:rgba(198,242,78,.06);transform:translateY(-2px)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:var(--r-img);border:1px solid rgba(255,255,255,.1);
  aspect-ratio:4/3;
}
.hero-badge{
  position:absolute;left:-14px;bottom:26px;
  background:var(--ink-2);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-tag);
  padding:10px 16px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--lime);
}
.trust-bar{
  position:relative;z-index:2;
  border-top:1px solid var(--line-dark);
  background:rgba(0,0,0,.18);
}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.trust-item{padding:22px 0;padding-right:24px}
.trust-item + .trust-item{border-left:1px solid var(--line-dark);padding-left:28px}
.trust-item .k{
  display:block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-dark);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.trust-item .v{margin-top:6px;font-size:15px;font-weight:700;color:#fff}

/* ---------- 功能价值（非对称） ---------- */
.feature-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:stretch}
.f-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.f-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow-hover)}
.f-card-lg{padding:28px;display:flex;flex-direction:column}
.f-card-lg img{width:100%;aspect-ratio:16/9;border-radius:var(--r-img);background:var(--img);margin-bottom:24px}
.f-card h3{font-size:1.2rem;font-weight:700;margin-bottom:12px}
.f-card p{color:var(--muted);font-size:15px}
.f-card .f-list{margin-top:20px;display:grid;gap:14px}
.f-card .f-list li{display:flex;gap:12px;font-size:15px;color:var(--text);line-height:1.7}
.f-card .f-list i{color:var(--ink);background:var(--lime);border-radius:4px;width:20px;height:20px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;margin-top:4px}
.f-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.f-side .f-card{display:flex;flex-direction:column;justify-content:center}
.f-num{font-size:44px;font-weight:900;color:var(--line);line-height:1;margin-bottom:14px}

/* ---------- 轮播（深色） ---------- */
.showcase .carousel-inner{overflow:hidden}
.slide-row{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center;min-height:400px}
.slide-copy .idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;letter-spacing:.16em;color:var(--lime);font-weight:700;
}
.slide-copy h3{margin-top:16px;font-size:clamp(1.35rem,2.2vw,1.9rem);font-weight:700;line-height:1.35;color:#fff}
.slide-copy p{margin-top:16px;color:var(--muted-dark);font-size:15.5px;max-width:420px}
.slide-copy ul{margin-top:22px;display:grid;gap:10px}
.slide-copy ul li{font-size:14.5px;color:var(--text-dark);padding-left:18px;position:relative}
.slide-copy ul li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--lime);border-radius:2px}
.slide-visual img{
  width:100%;aspect-ratio:16/9;border-radius:var(--r-img);
  border:1px solid rgba(255,255,255,.1);background:#101815;
}
.carousel-fade .carousel-item{transition:opacity .24s var(--ease)}
.carousel-ctrl{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:40px;
  border-top:1px solid var(--line-dark);padding-top:26px}
.slide-indicators{display:flex;gap:26px;align-items:center}
.slide-indicators button{
  background:none;border:0;padding:0;color:var(--muted-dark);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;font-weight:700;
  letter-spacing:.08em;position:relative;padding-bottom:10px;
  transition:color .2s var(--ease);
}
.slide-indicators button::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(255,255,255,.14);
  transition:background .2s var(--ease);
}
.slide-indicators button.active{color:#fff}
.slide-indicators button.active::after{background:var(--lime)}
.carousel-arrows{display:flex;gap:12px}
.carousel-arrows button{
  width:46px;height:46px;border-radius:50%;background:transparent;
  border:1px solid rgba(255,255,255,.24);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.carousel-arrows button:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:start}
.req-list{display:grid;gap:0}
.req-row{
  display:grid;grid-template-columns:180px 1fr;gap:20px;
  background:#fff;border:1px solid var(--line);border-bottom:0;
  padding:22px 26px;align-items:center;
}
.req-row:first-child{border-radius:var(--r-card) var(--r-card) 0 0}
.req-row:last-child{border-bottom:1px solid var(--line);border-radius:0 0 var(--r-card) var(--r-card)}
.req-row:hover{background:#FCFBF8}
.req-key{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:700;letter-spacing:.02em}
.req-key i{
  width:32px;height:32px;border-radius:8px;background:var(--ink);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;flex:none;
}
.req-val{color:var(--muted);font-size:15px}
.req-aside img{width:100%;aspect-ratio:4/3;border-radius:var(--r-img);background:var(--img);border:1px solid var(--line)}
.req-aside .aside-note{
  margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;
}
.req-aside .aside-note strong{display:block;font-size:15px}
.req-aside .aside-note span{display:block;margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- 评价墙 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.review-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow-hover)}
.stars{color:var(--coral);font-size:13px;letter-spacing:2px}
.review-card p{font-size:14.5px;line-height:1.8;color:var(--text)}
.review-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;gap:12px}
.review-name{font-size:13px;font-weight:700;color:var(--muted)}
.tag{
  display:inline-block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-tag);
  padding:4px 10px;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--muted);
}
@media (min-width:992px){
  .review-grid > .review-card:nth-child(2),
  .review-grid > .review-card:nth-child(4){margin-top:24px}
}

/* ---------- 下载区（深色） ---------- */
.download{position:relative;overflow:hidden}
.download-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.12;
}
.download .container{position:relative;z-index:2}
.dl-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:start}
.dl-list{display:grid;gap:14px}
.dl-btn{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);
  padding:20px 24px;transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.dl-btn:hover{border-color:var(--lime);transform:translateY(-4px);background:rgba(198,242,78,.05)}
.dl-btn .dl-left{display:flex;align-items:center;gap:18px}
.dl-btn .dl-icon{
  width:46px;height:46px;border-radius:12px;background:rgba(255,255,255,.06);
  display:inline-flex;align-items:center;justify-content:center;color:var(--lime);font-size:18px;flex:none;
}
.dl-btn .dl-name{font-size:16px;font-weight:700;color:#fff}
.dl-btn .dl-sub{font-size:13px;color:var(--muted-dark);margin-top:4px}
.dl-btn .dl-arrow{color:var(--muted-dark);font-size:15px;transition:transform .2s var(--ease),color .2s var(--ease)}
.dl-btn:hover .dl-arrow{transform:translateX(4px);color:var(--lime)}
.qr-card{
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);
  padding:28px;text-align:center;
}
.qr-box{
  width:160px;height:160px;margin:0 auto 20px;background:#fff;border-radius:12px;
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:52px;
}
.qr-card strong{display:block;font-size:16px;color:#fff}
.qr-card span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted-dark)}
.qr-card hr{border-color:var(--line-dark);margin:22px 0}
.qr-card .mini{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted-dark);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* ---------- 资讯（CMS） ---------- */
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow-hover)}
.news-thumb{display:block;background:var(--img)}
.news-thumb img{width:100%;aspect-ratio:16/9;transition:transform .24s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.02)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:1.05rem;font-weight:700;line-height:1.55}
.news-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:#41521a}
.news-sum{
  font-size:14.5px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;color:var(--muted);
}
.news-foot .news-more{transition:transform .2s var(--ease)}
.news-card:hover .news-foot .news-more{transform:translateX(4px);color:var(--ink)}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:72px 24px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:30px;color:var(--line);display:block;margin-bottom:16px}
.empty-state p{font-size:15px}
.empty-state a{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink)}
.empty-state a:hover{color:#41521a}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;
}
.faq .accordion-button{
  width:100%;background:#fff;border:0;box-shadow:none;
  padding:24px 26px;min-height:56px;
  display:flex;align-items:center;gap:20px;
  font-size:16px;font-weight:700;color:var(--text);text-align:left;
  transition:color .2s var(--ease);
}
.faq .accordion-button:not(.collapsed){color:var(--ink)}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:-2px}
.faq .accordion-button::after{display:none}
.faq .q-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;font-weight:700;
  color:var(--muted);flex:none;
}
.faq .accordion-button:not(.collapsed) .q-num{color:#7c9c22}
.faq .q-icon{
  position:relative;width:16px;height:16px;flex:none;margin-left:auto;
}
.faq .q-icon::before,.faq .q-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq .q-icon::before{left:0;right:0;top:7px;height:2px}
.faq .q-icon::after{top:0;bottom:0;left:7px;width:2px}
.faq .accordion-button:not(.collapsed) .q-icon::after{transform:scaleY(0)}
.faq .accordion-body{
  padding:0 26px 26px 26px;margin-left:0;color:var(--muted);font-size:15px;line-height:1.9;
  padding-left:calc(26px + 32px);
}
.faq .accordion-body p + p{margin-top:14px}

/* ---------- 底部 CTA 条 ---------- */
.cta-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow);
}
.cta-bar h2{font-size:clamp(1.35rem,2.2vw,1.85rem);font-weight:700;line-height:1.35}
.cta-bar p{margin-top:12px;color:var(--muted);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex:none;flex-wrap:wrap}
.btn-dark-lg{
  display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 26px;border-radius:999px;
  background:var(--ink);color:#fff;font-size:15.5px;font-weight:700;border:1px solid var(--ink);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.btn-dark-lg:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn-line-lg{
  display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 24px;border-radius:10px;
  background:transparent;color:var(--ink);font-size:15.5px;font-weight:600;border:1px solid var(--line);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-line-lg:hover{border-color:var(--ink);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--muted-dark);padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:0}
.footer-col{padding-right:32px}
.footer-col + .footer-col{border-left:1px solid var(--line-dark);padding-left:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{width:12px;height:12px;border-radius:3px;background:var(--lime)}
.footer-brand span{color:#fff;font-size:18px;font-weight:800;letter-spacing:-.02em}
.footer-col p{font-size:14px;line-height:1.9}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col ul a{font-size:14px}
.footer-col ul a:hover{color:var(--lime)}
.footer-note{font-size:13px;line-height:1.9}
.footer-bottom{
  margin-top:60px;border-top:1px solid var(--line-dark);padding:24px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:#7d8783}
.footer-bottom .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:#6d7773}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .hero{padding-top:72px}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding-bottom:48px}
  .hero-sub{max-width:100%}
  .feature-grid{grid-template-columns:1fr}
  .slide-row{grid-template-columns:1fr;gap:28px;min-height:0}
  .req-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid > .review-card:nth-child(2),
  .review-grid > .review-card:nth-child(4){margin-top:0}
  .dl-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
  .footer-col:nth-child(4){border-left:1px solid var(--line-dark);padding-left:32px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:767px){
  .trust-grid{grid-template-columns:1fr}
  .trust-item + .trust-item{border-left:0;border-top:1px solid var(--line-dark);padding-left:0;padding-top:20px}
  .sec-head-row{flex-direction:column;align-items:flex-start}
  .req-row{grid-template-columns:1fr;gap:8px}
  .faq .accordion-body{padding-left:26px}
}
@media (max-width:575px){
  .section{padding:56px 0}
  .container{padding-left:18px;padding-right:18px}
  .review-grid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column;align-items:stretch}
  .btn-primary-lg,.btn-ghost-lg{width:100%;justify-content:center}
  .cta-actions{width:100%;flex-direction:column}
  .btn-dark-lg,.btn-line-lg{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-col + .footer-col{border-left:0;padding-left:0;border-top:1px solid var(--line-dark);padding-top:28px}
  .footer-col{padding-right:0}
  .dl-btn{padding:18px}
  .carousel-ctrl{flex-direction:column;align-items:flex-start;gap:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .f-card:hover,.news-card:hover,.review-card:hover,.dl-btn:hover,
  .btn-primary-lg:hover,.btn-ghost-lg:hover,.btn-dark-lg:hover,.btn-line-lg:hover,.btn-cta:hover{transform:none}
}

/* roulang page: article */
:root{
  --lime:#C6F24E;
  --lime-deep:#B4E337;
  --coral:#FF6A3D;
  --ink:#0E1412;
  --ink-2:#16211D;
  --sand:#F6F4EF;
  --paper:#FFFFFF;
  --line:#E4E1D8;
  --line-dark:rgba(255,255,255,.08);
  --text:#14181A;
  --muted:#6B7370;
  --dark-text:#E8ECE9;
  --dark-muted:#9AA5A0;
  --ph:#E9E6DE;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 1px 2px rgba(14,20,18,.04);
  --shadow-hover:0 12px 28px -12px rgba(14,20,18,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:inherit}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.mono{font-family:var(--font-mono);letter-spacing:.02em}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:700;letter-spacing:.01em;border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn-brand{background:var(--lime);color:var(--ink)}
.btn-brand:hover{background:var(--lime-deep);color:var(--ink);transform:translateY(-2px)}
.btn-brand:active{transform:translateY(0)}
.btn-outline{border-radius:var(--r-btn);border-color:var(--line);background:transparent;color:var(--text)}
.btn-outline:hover{border-color:var(--lime);transform:translateY(-2px)}
.btn-ghost{border-radius:var(--r-btn);border-color:rgba(255,255,255,.28);background:transparent;color:#fff}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--text);border-bottom:1px solid transparent;padding-bottom:2px}
.text-link:hover{border-color:var(--lime)}
.text-link .arrow{transition:transform .2s var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 标签 ---------- */
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;font-size:12px;font-weight:700;letter-spacing:.04em}
.tag-lime{background:var(--lime);color:var(--ink)}
.tag-face{background:#F0EEE7;color:#4A524E;border:1px solid var(--line)}
.tag-coral{background:rgba(255,106,61,.12);color:#C2431C}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(14,20,18,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark);transition:background-color .2s var(--ease),box-shadow .2s var(--ease)}
.site-header.is-scrolled{background:rgba(14,20,18,.97);box-shadow:0 8px 24px -18px rgba(0,0,0,.8)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--lime);position:relative;display:inline-block;flex:0 0 auto}
.brand-mark::after{content:"A";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--ink);font-family:var(--font-mono);font-weight:800;font-size:15px;line-height:1}
.brand-text{display:flex;flex-direction:column;line-height:1.06}
.brand-text strong{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em}
.brand-text span{font-size:10.5px;letter-spacing:.16em;color:var(--dark-muted);font-family:var(--font-mono)}
.nav-links{align-items:center;gap:6px}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;color:var(--dark-text);font-weight:500}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:20px;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff;font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-nav{height:42px;padding:0 20px;font-size:14px;min-width:132px}
.nav-toggle{width:44px;height:44px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:#E8ECE9;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{display:none;border-top:1px solid var(--line-dark);background:#111A17;padding:12px 24px 24px}
.mobile-drawer.is-open{display:block}
.mobile-drawer nav{display:flex;flex-direction:column}
.mobile-drawer nav a{display:flex;align-items:center;min-height:52px;padding-left:14px;color:var(--dark-text);font-size:16px;border-left:3px solid transparent}
.mobile-drawer nav a.is-active{border-left-color:var(--lime);color:#fff;font-weight:700}
.mobile-drawer .btn{margin-top:16px}

/* ---------- 文章头图区 ---------- */
.article-hero{position:relative;background:var(--ink);overflow:hidden;padding:72px 0 60px}
.article-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.24;filter:saturate(.65)}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,20,18,.70) 0%,rgba(14,20,18,.95) 100%)}
.article-hero-inner{position:relative;z-index:2;max-width:920px}
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--dark-muted);margin-bottom:24px}
.breadcrumb-nav a{color:var(--dark-muted);border-bottom:1px solid transparent}
.breadcrumb-nav a:hover{color:var(--lime);border-color:var(--lime)}
.breadcrumb-nav .sep{opacity:.5}
.breadcrumb-nav .current{color:#8C9691;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{color:#fff;font-size:clamp(1.75rem,3.6vw,2.7rem);font-weight:800;letter-spacing:-.03em;line-height:1.18;margin-bottom:20px}
.article-hero .tag{margin-bottom:16px}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:12.5px;color:var(--dark-muted);letter-spacing:.04em}
.meta-sep{width:1px;height:12px;background:rgba(255,255,255,.2);display:inline-block}

/* ---------- 正文 ---------- */
.article-main{padding:72px 0 88px}
.article-shell{max-width:840px;margin:0 auto}
.article-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);padding:48px 44px;box-shadow:var(--shadow)}
.article-body{max-width:760px;margin:0 auto;font-size:16.5px;line-height:1.9;color:var(--text)}
.article-body>*:first-child{margin-top:0}
.article-body h2{position:relative;font-size:clamp(1.3rem,2.2vw,1.65rem);font-weight:700;line-height:1.4;margin:40px 0 16px;padding-left:16px;letter-spacing:-.01em}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--lime)}
.article-body h3{font-size:1.1rem;font-weight:700;margin:32px 0 12px;line-height:1.5}
.article-body p{margin:0 0 20px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:20px}
.article-body ul>li{position:relative}
.article-body ul>li::before{content:"";position:absolute;left:-16px;top:.72em;width:7px;height:7px;border-radius:1.5px;background:var(--lime)}
.article-body ol{list-style:decimal}
.article-body ol>li{padding-left:4px}
.article-body li{margin:8px 0;line-height:1.8}
.article-body blockquote{margin:24px 0;padding:16px 22px;border-left:3px solid var(--lime);background:var(--sand);border-radius:0 10px 10px 0;color:#3C443F}
.article-body img{border-radius:var(--r-img);margin:24px auto}
.article-body a{color:#14181A;border-bottom:1px solid rgba(198,242,78,.85)}
.article-body a:hover{border-color:var(--ink)}
.article-body code{font-family:var(--font-mono);font-size:.9em;background:#EFEDE6;border-radius:6px;padding:2px 6px}
.article-body pre{background:#EFEDE6;border:1px solid var(--line);border-radius:10px;padding:16px 18px;overflow:auto;font-family:var(--font-mono);font-size:13.5px;line-height:1.7;margin:0 0 20px}
.article-body pre code{background:none;padding:0;font-size:inherit}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 20px;background:var(--paper);border-radius:10px;overflow:hidden}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--sand);font-weight:700}
.article-body figure{margin:24px 0}
.article-body figcaption,.article-body .wp-caption-text{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-empty{text-align:center;padding:32px 8px}
.article-empty .empty-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:14px;background:var(--ph);display:flex;align-items:center;justify-content:center;color:#8E968F}
.article-empty h2{font-size:1.3rem;margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:14.5px;margin-bottom:24px}
.article-empty .actions{display:flex;justify-content:center}

.tag-group{display:flex;flex-wrap:wrap;gap:10px;max-width:760px;margin:40px auto 0;padding-top:28px;border-top:1px solid var(--line)}
.tag-chip{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:6px;background:#F1EFE8;border:1px solid var(--line);font-size:13px;color:#4A524E;letter-spacing:.04em}
.tag-chip:hover{border-color:var(--lime);color:var(--ink)}

/* ---------- 继续了解 ---------- */
.next-block{padding:0 0 88px}
.next-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:840px;margin:0 auto}
.next-card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--shadow);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.next-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow-hover)}
.next-label{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:12px;display:block}
.next-card h3{font-size:1.08rem;font-weight:700;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.next-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.next-card .arrow{display:inline-block;margin-top:14px;font-weight:700;font-size:14px;transition:transform .2s var(--ease)}
.next-card:hover .arrow{transform:translateX(4px)}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;letter-spacing:-.02em;line-height:1.25}
.section-head p{font-size:14.5px;color:var(--muted);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);display:flex;flex-direction:column}
.rec-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow-hover)}
.rec-thumb{aspect-ratio:16/9;background:var(--ph);overflow:hidden}
.rec-thumb img{width:100%;height:100%;transition:transform .24s var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.02)}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.rec-body .tag{align-self:flex-start;margin-bottom:12px}
.rec-body h3{font-size:1.02rem;font-weight:700;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.rec-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}
.rec-foot .arrow{transition:transform .2s var(--ease)}
.rec-card:hover .rec-foot .arrow{transform:translateX(4px)}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--ink);border-radius:20px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:var(--dark-text);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(198,242,78,.16),transparent 70%)}
.cta-band h2{font-size:clamp(1.25rem,2.2vw,1.7rem);color:#fff;letter-spacing:-.02em;margin-bottom:10px}
.cta-band p{font-size:14.5px;color:var(--dark-muted);max-width:560px}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex:0 0 auto}
.cta-wrap{padding:0 0 96px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line-dark)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:18px;font-weight:700}
.footer-col p{font-size:14px;color:var(--dark-muted);line-height:1.85}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col ul a{font-size:14px;color:var(--dark-muted);border-bottom:1px solid transparent;padding-bottom:1px}
.footer-col ul a:hover{color:var(--lime);border-color:var(--lime)}
.footer-note{font-size:13px;color:var(--dark-muted);line-height:1.8}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;font-size:12.5px;color:#7C8580;flex-wrap:wrap}
.footer-bottom .mono{color:#7C8580}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .article-hero{padding:56px 0 48px}
  .article-main{padding:56px 0 64px}
  .article-card{padding:36px 28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px}
  .cta-band .cta-actions{width:100%;flex-wrap:wrap}
  .next-block,.related{padding-bottom:64px}
}
@media (max-width:767px){
  .next-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px}
  .article-hero{padding:44px 0 40px}
  .article-title{font-size:1.6rem}
  .article-main{padding:40px 0 48px}
  .article-card{padding:26px 18px;border-radius:14px}
  .article-body{font-size:15px;line-height:1.75}
  .article-body h2{margin-top:32px}
  .article-body p{margin-bottom:18px}
  .related-grid{grid-template-columns:1fr}
  .rec-body{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band h2{font-size:1.2rem}
  .cta-band .cta-actions .btn{width:100%}
  .article-empty .actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .btn:hover,.next-card:hover,.rec-card:hover{transform:none}
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root{
  --lime:#C6F24E;
  --lime-deep:#B6E339;
  --coral:#FF6A3D;
  --ink:#0E1412;
  --ink-2:#16211D;
  --sand:#F6F4EF;
  --card:#FFFFFF;
  --line:#E4E1D8;
  --line-dark:rgba(255,255,255,.08);
  --text:#14181A;
  --text-soft:#3A423E;
  --muted:#6B7370;
  --on-dark:#E8ECE9;
  --on-dark-muted:#9AA5A0;
  --img-ph:#E9E6DE;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-tag:6px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --sh:0 1px 2px rgba(14,20,18,.04);
  --sh-hover:0 12px 28px -12px rgba(14,20,18,.22);
  --pad-sec:96px;
}
@media (max-width:1199.98px){ :root{ --pad-sec:72px; } }
@media (max-width:767.98px){ :root{ --pad-sec:56px; } }

/* ========== 基础 reset ========== */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px; line-height:1.8; color:var(--text); background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; object-fit:cover; }
a{ color:inherit; text-decoration:none; transition:color var(--dur) var(--ease); }
button{ font-family:inherit; }
h1,h2,h3,h4,p,ul,ol{ margin:0; }
ul,ol{ padding:0; list-style:none; }
.mono{ font-family:Inter,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12.5px; letter-spacing:.04em; }
:focus-visible{ outline:2px solid var(--lime); outline-offset:2px; border-radius:4px; }

.container{ width:100%; max-width:1200px; margin:0 auto; padding-left:24px; padding-right:24px; }
.section{ padding:var(--pad-sec) 0; }
.section--sand{ background:var(--sand); }
.section--plain{ background:#FBFAF6; }

/* ========== 通用标题块 ========== */
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:12px; font-weight:700; letter-spacing:.14em;
  color:var(--muted); text-transform:uppercase;
}
.eyebrow::before{ content:""; width:18px; height:2px; background:var(--lime); border-radius:2px; }
.sec-head{ max-width:720px; margin-bottom:56px; }
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem); font-weight:700; line-height:1.25;
  letter-spacing:-.02em; margin:16px 0 14px; color:var(--ink);
}
.sec-head p{ color:var(--muted); font-size:16px; margin:0; }
@media (max-width:767.98px){ .sec-head{ margin-bottom:36px; } }

/* ========== 导航 ========== */
.site-header{
  position:sticky; top:0; z-index:1030;
  background:rgba(246,244,239,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,244,239,.97);
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(14,20,18,.04);
}
.nav-wrap{ display:flex; align-items:center; gap:28px; height:72px; }
.brand{ display:flex; align-items:center; gap:10px; flex:none; }
.brand-mark{
  width:14px; height:14px; border-radius:3px; background:var(--lime);
  box-shadow:inset 0 0 0 1px rgba(14,20,18,.85); flex:none;
}
.brand-text{ display:flex; align-items:baseline; gap:6px; letter-spacing:-.02em; }
.brand-text strong{ font-size:19px; font-weight:800; color:var(--ink); }
.brand-text em{ font-style:normal; font-size:13px; font-weight:600; color:var(--muted); }
.nav-links{ display:flex; align-items:center; gap:30px; margin-left:12px; flex:1; }
.nav-links a{
  position:relative; font-size:15px; font-weight:500; color:var(--text-soft);
  padding:8px 0; line-height:1.4;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:var(--lime); transform:scaleX(0); transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-links a.is-active{ color:var(--ink); font-weight:700; }
.nav-links a.is-active::after{ transform:scaleX(1); }
.nav-actions{ display:flex; align-items:center; gap:12px; margin-left:auto; }
.btn-cta{
  display:inline-flex; align-items:center; justify-content:center;
  min-width:132px; height:44px; padding:0 22px; border-radius:999px;
  background:var(--lime); color:var(--ink); font-size:15px; font-weight:700;
  border:1px solid rgba(14,20,18,.1);
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-cta:hover{ background:var(--lime-deep); color:var(--ink); transform:translateY(-2px); box-shadow:var(--sh-hover); }
.nav-toggle{
  width:44px; height:44px; border-radius:10px; border:1px solid var(--line);
  background:#fff; display:inline-flex; flex-direction:column; align-items:center;
  justify-content:center; gap:4px; cursor:pointer; padding:0;
}
.nav-toggle span{
  display:block; width:18px; height:1.5px; background:var(--ink); border-radius:2px;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle.is-open span:nth-child(1){ transform:translateY(5.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform:translateY(-5.5px) rotate(-45deg); }
.nav-drawer{ display:none; flex-direction:column; background:#fff; border-top:1px solid var(--line); padding:8px 0 20px; }
.nav-drawer.is-open{ display:flex; }
.nav-drawer a{
  display:flex; align-items:center; min-height:52px; padding:0 24px;
  font-size:15.5px; font-weight:600; color:var(--text-soft);
  border-left:3px solid transparent;
}
.nav-drawer a.is-active{ border-left-color:var(--lime); background:rgba(198,242,78,.14); color:var(--ink); }
.nav-drawer .drawer-cta{
  margin:12px 24px 0; min-height:48px; justify-content:center;
  background:var(--lime); color:var(--ink); border-radius:999px; font-weight:700;
}
@media (max-width:991.98px){
  .nav-wrap{ height:64px; gap:16px; }
  .brand-text strong{ font-size:17px; }
  .brand-text em{ font-size:12px; }
}

/* ========== 按钮体系 ========== */
.btn-lime{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 30px; border-radius:999px; border:1px solid transparent;
  background:var(--lime); color:var(--ink); font-size:15px; font-weight:700;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.btn-lime:hover{ background:var(--lime-deep); color:var(--ink); transform:translateY(-2px); }
.btn-outline{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 28px; border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.28); background:transparent; color:#fff;
  font-size:15px; font-weight:600;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-outline:hover{ border-color:var(--lime); color:var(--lime); transform:translateY(-2px); }
.btn-outline-dark{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 26px; border-radius:var(--r-btn);
  border:1px solid #CFD4C9; background:#fff; color:var(--ink);
  font-size:15px; font-weight:700;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-outline-dark:hover{ border-color:var(--lime); transform:translateY(-2px); box-shadow:var(--sh-hover); color:var(--ink); }
.link-arrow{
  display:inline-flex; align-items:center; gap:8px; font-size:15px; font-weight:700; color:var(--ink);
  padding-bottom:2px; background:linear-gradient(var(--lime),var(--lime)) no-repeat left bottom / 0 2px;
  transition:background-size var(--dur) var(--ease),color var(--dur) var(--ease);
}
.link-arrow:hover{ background-size:100% 2px; color:var(--ink); }
.link-arrow .arw{ transition:transform var(--dur) var(--ease); }
.link-arrow:hover .arw{ transform:translateX(4px); }

/* ========== 分类页 Hero ========== */
.page-hero{
  position:relative; background:var(--ink); color:var(--on-dark);
  padding:104px 0 72px; overflow:hidden;
}
.page-hero .hero-bg{
  position:absolute; inset:0; background-size:cover; background-position:center;
  opacity:.24; transform:scale(1.02);
}
.page-hero::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg,rgba(14,20,18,.84) 0%,rgba(14,20,18,.92) 55%,rgba(14,20,18,.98) 100%);
}
.hero-inner{ position:relative; z-index:2; max-width:840px; }
.page-hero .eyebrow{ color:var(--on-dark-muted); }
.page-hero h1{
  font-size:clamp(2rem,4.6vw,3.5rem); font-weight:800; letter-spacing:-.03em;
  line-height:1.15; color:#fff; margin:20px 0 0;
}
.page-hero h1 .accent{ color:var(--lime); }
.hero-lead{
  margin-top:22px; max-width:600px; font-size:16.5px; line-height:1.8; color:var(--on-dark-muted);
}
.hero-cta{ display:flex; flex-wrap:wrap; gap:14px; margin-top:34px; }
.hero-meta{
  display:flex; flex-wrap:wrap; gap:12px 34px;
  margin-top:48px; padding-top:22px; border-top:1px solid var(--line-dark);
  color:var(--on-dark-muted); font-size:12.5px; letter-spacing:.04em;
}
.hero-meta span{ display:inline-flex; align-items:center; gap:8px; }
.hero-meta span::before{ content:""; width:6px; height:6px; border-radius:2px; background:var(--lime); }
@media (max-width:767.98px){
  .page-hero{ padding:76px 0 56px; }
  .hero-cta .btn-lime,.hero-cta .btn-outline{ width:100%; }
  .hero-meta{ margin-top:36px; gap:10px 22px; }
}

/* ========== 步骤时间线 ========== */
.timeline{ position:relative; margin-top:8px; }
.timeline::before{
  content:""; position:absolute; left:31px; top:20px; bottom:28px; width:1px; background:var(--line);
}
.tl-item{ position:relative; display:flex; gap:24px; padding-bottom:24px; }
.tl-item:last-child{ padding-bottom:0; }
.tl-num{
  flex:none; width:64px; height:64px; border-radius:50%;
  background:var(--card); border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  font-family:Inter,ui-monospace,monospace; font-size:19px; font-weight:900;
  color:var(--ink); letter-spacing:-.02em; position:relative; z-index:2;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.tl-body{
  flex:1; background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
  padding:26px 28px; box-shadow:var(--sh);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.tl-item:hover .tl-body{ transform:translateY(-4px); border-color:var(--lime); box-shadow:var(--sh-hover); }
.tl-item:hover .tl-num{ border-color:var(--lime); background:rgba(198,242,78,.22); }
.tl-body h3{ font-size:1.15rem; font-weight:700; color:var(--ink); letter-spacing:-.01em; }
.tl-body p{ margin-top:10px; color:var(--muted); font-size:15.5px; }
.tl-points{ display:flex; flex-wrap:wrap; gap:8px 10px; margin-top:16px; }
.tl-points li{
  font-size:12.5px; letter-spacing:.04em; color:var(--text-soft);
  background:var(--sand); border:1px solid var(--line);
  border-radius:var(--r-tag); padding:4px 10px;
}
@media (max-width:575.98px){
  .timeline::before{ left:23px; }
  .tl-item{ gap:14px; }
  .tl-num{ width:48px; height:48px; font-size:15px; }
  .tl-body{ padding:20px 18px; }
}

/* ========== 图文分栏 ========== */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.split + .split{ margin-top:88px; }
.split.reverse .split-text{ order:2; }
.split.reverse .split-media{ order:1; }
.split-text h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem); font-weight:700; letter-spacing:-.02em;
  line-height:1.25; margin:16px 0 16px; color:var(--ink);
}
.split-text p{ color:var(--muted); font-size:16px; }
.split-media{ position:relative; }
.split-media img{
  width:100%; aspect-ratio:4/3; border-radius:var(--r-img);
  background-color:var(--img-ph); border:1px solid var(--line); object-fit:cover;
}
.split-media .media-tag{
  position:absolute; left:16px; bottom:16px;
  background:rgba(14,20,18,.86); color:var(--on-dark);
  font-size:12px; letter-spacing:.06em; padding:6px 12px; border-radius:var(--r-tag);
}
.check-list{ display:grid; gap:12px; margin-top:22px; }
.check-list li{ position:relative; padding-left:24px; font-size:15.5px; color:var(--text-soft); }
.check-list li::before{
  content:""; position:absolute; left:2px; top:11px;
  width:7px; height:7px; border-radius:2px; background:var(--lime);
}
@media (max-width:991.98px){
  .split{ grid-template-columns:1fr; gap:32px; }
  .split.reverse .split-text{ order:1; }
  .split.reverse .split-media{ order:2; }
  .split + .split{ margin-top:64px; }
}

/* ========== 注意事项卡片 ========== */
.notice-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.notice-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
  padding:26px 28px; box-shadow:var(--sh);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.notice-card:hover{ transform:translateY(-4px); border-color:var(--lime); box-shadow:var(--sh-hover); }
.notice-tag{
  display:inline-block; font-size:12px; font-weight:700; letter-spacing:.08em;
  padding:3px 9px; border-radius:var(--r-tag);
  background:rgba(255,106,61,.12); color:#B9411B; border:1px solid rgba(255,106,61,.32);
  margin-bottom:14px;
}
.notice-tag.is-calm{ background:rgba(198,242,78,.28); color:#44530E; border-color:rgba(198,242,78,.9); }
.notice-card h3{ font-size:1.08rem; font-weight:700; color:var(--ink); }
.notice-card p{ margin-top:10px; color:var(--muted); font-size:15.5px; }
@media (max-width:767.98px){ .notice-grid{ grid-template-columns:1fr; } }

/* ========== FAQ 手风琴 ========== */
.faq-acc{ max-width:900px; }
.faq-acc .accordion-item{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
  margin-bottom:14px; overflow:hidden;
}
.faq-acc .accordion-button{
  width:100%; display:flex; align-items:center; gap:16px;
  min-height:64px; padding:18px 26px;
  background:var(--card); color:var(--ink);
  font-size:16px; font-weight:700; line-height:1.6; text-align:left;
  border:0; box-shadow:none;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){ background:var(--card); color:var(--ink); box-shadow:none; }
.faq-acc .accordion-button:focus{ box-shadow:none; outline:2px solid var(--lime); outline-offset:-2px; }
.faq-acc .accordion-button::after{ display:none; }
.faq-idx{
  font-family:Inter,ui-monospace,monospace; font-size:12.5px; font-weight:700;
  letter-spacing:.06em; color:var(--muted); flex:none;
}
.faq-sign{ position:relative; width:20px; height:20px; flex:none; margin-left:auto; }
.faq-sign::before,.faq-sign::after{
  content:""; position:absolute; left:50%; top:50%; background:var(--ink); border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-sign::before{ width:13px; height:1.6px; }
.faq-sign::after{ width:1.6px; height:13px; }
.faq-acc .accordion-button:not(.collapsed) .faq-sign::after{ transform:translate(-50%,-50%) rotate(90deg); opacity:0; }
.faq-acc .accordion-button:not(.collapsed) .faq-sign{ transform:rotate(180deg); }
.faq-acc .accordion-body{
  padding:0 26px 24px 26px; margin:0;
  color:var(--muted); font-size:15.5px; line-height:1.85;
  border-top:1px solid var(--line); padding-top:18px;
}
@media (max-width:575.98px){
  .faq-acc .accordion-button{ padding:16px 18px; font-size:15.5px; }
  .faq-acc .accordion-body{ padding:16px 18px 20px 18px; }
}

/* ========== 深色 CTA 条 ========== */
.cta-band{ background:var(--ink); color:var(--on-dark); padding:72px 0; }
.cta-inner{ display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap; }
.cta-inner h2{
  font-size:clamp(1.4rem,2.4vw,2rem); font-weight:700; letter-spacing:-.02em;
  line-height:1.3; color:#fff; max-width:640px;
}
.cta-inner p{ margin-top:12px; color:var(--on-dark-muted); font-size:15.5px; max-width:560px; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }
@media (max-width:767.98px){
  .cta-band{ padding:56px 0; }
  .cta-actions{ width:100%; }
  .cta-actions .btn-lime,.cta-actions .btn-outline{ width:100%; }
}

/* ========== 页脚 ========== */
.site-footer{
  background:var(--ink); color:var(--on-dark-muted);
  padding:64px 0 28px; border-top:1px solid var(--line-dark);
}
.footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:40px; }
.footer-col h4{ font-size:14px; font-weight:700; color:#fff; margin-bottom:16px; letter-spacing:.02em; }
.footer-col ul{ display:grid; gap:8px; }
.footer-col ul a{ font-size:14.5px; color:var(--on-dark-muted); }
.footer-col ul a:hover{ color:var(--lime); }
.footer-brand{ display:flex; align-items:center; gap:10px; color:#fff; font-weight:800; font-size:17px; margin-bottom:14px; }
.footer-brand .brand-mark{ box-shadow:none; }
.footer-col p{ font-size:14.5px; line-height:1.85; }
.footer-note{ font-size:13.5px; color:#8B958F; }
.footer-bottom{
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  margin-top:48px; padding-top:22px; border-top:1px solid var(--line-dark);
  font-size:12.5px; color:#7E8883;
}
.footer-bottom .mono{ color:#6E7873; }
@media (max-width:991.98px){
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:575.98px){
  .footer-grid{ grid-template-columns:1fr; gap:28px; }
}

/* ========== 动效降级 ========== */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .tl-item:hover .tl-body,.notice-card:hover,.btn-lime:hover,.btn-outline:hover,.btn-outline-dark:hover,.btn-cta:hover,.link-arrow:hover .arw{
    transform:none !important;
  }
}

/* roulang page: category2 */
:root{
  --lime:#C6F24E;
  --lime-deep:#B7E33C;
  --coral:#FF6A3D;
  --ink:#0E1412;
  --ink-2:#16211D;
  --sand:#F6F4EF;
  --card:#FFFFFF;
  --line:#E4E1D8;
  --text:#14181A;
  --muted:#6B7370;
  --d-text:#E8ECE9;
  --d-muted:#9AA5A0;
  --d-line:rgba(255,255,255,.08);
  --ph:#E9E6DE;
  --r-pill:999px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-tag:6px;
  --sh:0 1px 2px rgba(14,20,18,.04);
  --sh-hover:0 12px 28px -12px rgba(14,20,18,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:Inter,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--sand);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}

a:focus-visible,button:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:4px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 24px;border:1px solid transparent;
  font-size:.95rem;font-weight:700;line-height:1;
  border-radius:var(--r-sm);cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn i{font-size:.85em;transition:transform var(--dur) var(--ease)}
.btn-lime{background:var(--lime);color:var(--ink);border-radius:var(--r-pill)}
.btn-lime:hover{background:var(--lime-deep);color:var(--ink);transform:translateY(-2px)}
.btn-lime:hover i{transform:translateX(4px)}
.btn-ghost-dark{background:transparent;color:var(--d-text);border-color:rgba(255,255,255,.28);border-radius:var(--r-sm)}
.btn-ghost-dark:hover{border-color:var(--lime);color:#fff;transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost-light:hover{border-color:var(--lime);transform:translateY(-2px)}

/* ============ 头部与导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-scrolled{background:rgba(246,244,239,.98);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:12px;height:12px;border-radius:3px;background:var(--lime);flex:0 0 12px}
.brand-text{font-size:1.03rem;letter-spacing:-.02em;white-space:nowrap}
.brand-text strong{font-weight:800}
.brand-text em{font-style:normal;font-weight:600;color:var(--muted);font-size:.9rem}

.nav-links{margin-left:auto;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:8px;
  font-size:.94rem;font-weight:600;color:#3C4643;
  transition:color var(--dur) var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{transform:scaleX(1)}

.header-cta{min-width:132px;flex:0 0 auto}
.nav-toggle{
  margin-left:auto;width:46px;height:46px;flex:0 0 46px;
  display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--text);font-size:1.05rem;cursor:pointer;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);background:#fff}

.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--sand);padding-bottom:18px}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;min-height:52px;padding:0 24px;
  font-size:1rem;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.mobile-drawer a:hover{background:#fff}
.mobile-drawer a.is-active{box-shadow:inset 3px 0 0 var(--lime)}
.mobile-drawer .drawer-cta{
  margin:18px 24px 0;height:48px;justify-content:center;
  background:var(--lime);color:var(--ink);border-radius:var(--r-pill);
  font-weight:700;border-bottom:0;
}

/* ============ 通用板块 ============ */
.section{padding:clamp(56px,8vw,96px) 0}
.section-sand{background:var(--sand)}
.section-ink{background:var(--ink-2);color:var(--d-text)}
.section-ink .section-head h2{color:#fff}
.section-ink .section-head p{color:var(--d-muted)}

.section-head{max-width:720px;margin-bottom:clamp(32px,4vw,52px)}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  margin-bottom:16px;
}
.section-head .eyebrow::before{content:"";width:14px;height:2px;background:var(--lime)}
.section-ink .section-head .eyebrow{color:var(--d-muted)}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  font-weight:700;line-height:1.25;letter-spacing:-.02em;
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:1rem;max-width:640px}

/* ============ 分类首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--d-text);
  padding:clamp(64px,9vw,118px) 0 clamp(56px,7vw,88px);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.16;filter:grayscale(.25);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,20,18,.7),rgba(14,20,18,.95));
}
.hero-inner{position:relative;z-index:2}

.crumbs{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--d-muted);margin-bottom:28px;
}
.crumbs a{color:var(--d-muted);transition:color var(--dur) var(--ease)}
.crumbs a:hover{color:var(--lime)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--d-text)}

.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--d-muted);margin-bottom:20px;
}
.hero-kicker::before{content:"";width:14px;height:2px;background:var(--lime)}

.page-hero h1{
  font-size:clamp(2rem,4.6vw,3.5rem);
  font-weight:800;line-height:1.15;letter-spacing:-.03em;
  margin-bottom:22px;max-width:16em;
}
.page-hero h1 span{display:block}
.page-hero h1 .hl{
  position:relative;display:inline-block;
}
.page-hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:4px;
  background:var(--lime);border-radius:2px;
}
.hero-lead{
  color:var(--d-muted);font-size:1.06rem;line-height:1.9;
  max-width:620px;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}

.trust-bar{
  display:flex;flex-wrap:wrap;gap:14px 32px;
  padding-top:22px;border-top:1px solid var(--d-line);
  font-size:12.5px;color:var(--d-muted);letter-spacing:.02em;
}
.trust-bar li{display:flex;align-items:center;gap:8px}
.trust-bar li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--lime)}

/* ============ 下载列表 ============ */
.dl-list{display:grid;gap:14px;max-width:900px}
.dl-item{
  display:flex;align-items:center;gap:20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 24px;box-shadow:var(--sh);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.dl-item:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-hover)}
.dl-icon{
  width:52px;height:52px;flex:0 0 52px;border-radius:var(--r-md);
  background:var(--sand);display:grid;place-items:center;
  font-size:1.35rem;color:var(--ink);
  transition:background var(--dur) var(--ease);
}
.dl-item:hover .dl-icon{background:var(--lime)}
.dl-main{display:flex;flex-direction:column;gap:3px;min-width:0}
.dl-main strong{font-size:1.06rem;font-weight:700;letter-spacing:-.01em}
.dl-main em{
  font-style:normal;font-family:var(--mono);font-size:.82rem;
  color:var(--muted);letter-spacing:.01em;
}
.dl-go{
  margin-left:auto;flex:0 0 auto;color:var(--muted);font-size:.95rem;
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.dl-item:hover .dl-go{transform:translateX(4px);color:var(--ink)}
.dl-qr{
  width:56px;height:56px;flex:0 0 56px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;font-size:1.5rem;color:var(--ink);
}
.dl-note{
  max-width:900px;margin-top:22px;padding:18px 22px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);
  font-size:.9rem;color:var(--muted);
}
.dl-note i{color:var(--coral);margin-right:8px}

/* ============ 平台适配对照 ============ */
.compat-grid{
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:clamp(28px,4vw,56px);align-items:start;
}
.compat-tabs{display:grid;gap:12px}
.compat-tab{
  background:rgba(255,255,255,.03);
  border:1px solid var(--d-line);border-radius:14px;
  padding:20px 22px;cursor:pointer;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.compat-tab:hover{border-color:rgba(198,242,78,.5);transform:translateY(-2px)}
.compat-tab.is-active{border-color:var(--lime);background:rgba(198,242,78,.07)}
.ct-head{display:flex;align-items:center;gap:14px}
.ct-idx{
  font-family:var(--mono);font-size:.78rem;font-weight:700;
  color:var(--lime);letter-spacing:.06em;
}
.ct-head h3{font-size:1.06rem;font-weight:700;color:var(--d-text);letter-spacing:-.01em}
.ct-sub{margin-top:6px;padding-left:30px;font-size:.9rem;color:var(--d-muted)}
.ct-list{margin-top:14px;padding-left:30px;display:grid;gap:0}
.ct-list li{
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:9px 0;font-size:.88rem;
  border-top:1px solid var(--d-line);
}
.ct-list li span{color:var(--d-muted)}
.ct-list li strong{font-weight:600;color:var(--d-text)}

.compat-right{position:relative}
.shot-sticky{position:sticky;top:104px}
.shot-frame{
  border-radius:var(--r-md);overflow:hidden;
  border:1px solid rgba(255,255,255,.1);background:var(--ph);
}
.shot-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-caption{
  margin-top:16px;padding:16px 18px;
  border:1px solid var(--d-line);border-radius:var(--r-md);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.shot-caption .tag{
  font-family:var(--mono);font-size:12px;font-weight:700;
  letter-spacing:.06em;color:var(--ink);background:var(--lime);
  padding:4px 10px;border-radius:var(--r-tag);
}
.shot-caption p{font-size:.88rem;color:var(--d-muted);flex:1 1 180px}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto}
.accordion-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-header{margin:0}
.accordion-button{
  width:100%;min-height:56px;
  display:flex;align-items:center;gap:14px;
  padding:18px 24px;background:var(--card);
  color:var(--text);font-size:1rem;font-weight:700;letter-spacing:-.01em;
  border:0;box-shadow:none;text-align:left;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.accordion-button:hover{background:#fff}
.accordion-button:not(.collapsed){background:#fff;color:var(--text);box-shadow:none}
.accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid var(--lime);outline-offset:-2px}
.accordion-button::after{display:none}
.faq-idx{
  font-family:var(--mono);font-size:.78rem;font-weight:700;
  color:var(--muted);letter-spacing:.06em;flex:0 0 auto;
}
.accordion-button:not(.collapsed) .faq-idx{color:#8CA82F}
.pm{
  margin-left:auto;flex:0 0 28px;width:28px;height:28px;position:relative;
  border:1px solid var(--line);border-radius:50%;
  transition:transform 200ms var(--ease),border-color var(--dur) var(--ease);
}
.pm::before,.pm::after{
  content:"";position:absolute;background:var(--ink);
  transition:transform 200ms var(--ease),opacity 200ms var(--ease);
}
.pm::before{left:7px;right:7px;top:12.5px;height:2px}
.pm::after{top:7px;bottom:7px;left:12.5px;width:2px}
.accordion-button:not(.collapsed) .pm{transform:rotate(180deg);border-color:var(--lime)}
.accordion-button:not(.collapsed) .pm::after{transform:scaleY(0);opacity:0}
.accordion-body{
  padding:0 24px 22px 60px;
  color:var(--muted);font-size:.95rem;line-height:1.9;
}
.accordion-body p + p{margin-top:12px}

/* ============ 底部 CTA ============ */
.cta-bar{
  background:var(--ink);color:var(--d-text);
  padding:clamp(48px,6vw,76px) 0;
  border-top:1px solid var(--d-line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{
  font-size:clamp(1.35rem,2.2vw,1.9rem);
  font-weight:700;letter-spacing:-.02em;line-height:1.3;margin-bottom:10px;color:#fff;
}
.cta-inner p{color:var(--d-muted);font-size:.95rem;max-width:560px}
.cta-inner .btn{flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:var(--d-text);
  padding:64px 0 26px;
  border-top:1px solid var(--d-line);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:0;
}
.footer-col{padding:0 26px;border-left:1px solid var(--d-line)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.02rem;letter-spacing:-.02em;
  margin-bottom:16px;color:#fff;
}
.footer-brand .brand-mark{width:12px;height:12px;border-radius:3px;background:var(--lime);flex:0 0 12px}
.footer-col p{font-size:.88rem;line-height:1.9;color:var(--d-muted)}
.footer-col h4{font-size:.9rem;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.01em}
.footer-col ul{display:grid;gap:8px}
.footer-col ul a{
  font-size:.88rem;color:var(--d-muted);
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.footer-col ul a:hover{color:var(--lime);padding-left:4px}
.footer-note{font-size:.85rem}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--d-line);
  font-size:12px;color:var(--d-muted);
}
.footer-bottom .mono{letter-spacing:.04em}

/* ============ 响应式 ============ */
@media (max-width:991.98px){
  .header-inner{height:66px;gap:16px}
  .section{padding:72px 0}
  .compat-grid{grid-template-columns:1fr;gap:36px}
  .shot-sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:8px 0}
  .footer-col{padding:0 0 24px}
  .footer-col:nth-child(odd){padding-right:22px}
  .footer-col:nth-child(even){padding-left:22px;border-left:1px solid var(--d-line)}
  .footer-col:first-child{padding-left:0;border-left:0}
  .accordion-body{padding-left:24px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}

@media (max-width:767.98px){
  .section{padding:56px 0}
  .page-hero{padding:56px 0 48px}
  .hero-actions .btn{width:100%}
  .trust-bar{gap:10px 20px;font-size:12px}
}

@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px}
  .brand-text em{display:none}
  .brand-text{font-size:1rem}
  .dl-item{padding:16px 16px;gap:14px;flex-wrap:wrap}
  .dl-icon{width:46px;height:46px;flex:0 0 46px;font-size:1.2rem}
  .dl-go{display:none}
  .dl-qr{margin-left:auto}
  .dl-main strong{font-size:1rem}
  .dl-main em{font-size:.76rem;line-height:1.6}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0 0 22px !important;border-left:0 !important}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .accordion-button{padding:16px 18px;font-size:.95rem}
  .accordion-body{padding:0 18px 20px 18px}
  .cta-inner .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .btn:hover,.dl-item:hover,.compat-tab:hover{transform:none !important}
}