/* roulang page: index */
:root{
  --paper:#F6F6F3;
  --paper-2:#FFFFFF;
  --ink:#0E1110;
  --ink-2:#161A18;
  --accent:#C6F24E;
  --teal:#1F6F5C;
  --muted:#6B736E;
  --line:#E2E3DD;
  --line-dark:#2A302E;
  --amber:#E0A73B;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --shadow-1:0 1px 2px rgba(14,17,16,.04);
  --shadow-2:0 14px 30px -18px rgba(14,17,16,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(34px,5vw,62px);font-weight:800;line-height:1.1;letter-spacing:0}
h2{font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.2}
h3{font-size:20px;font-weight:600;line-height:1.4}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 20px}}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0;background:var(--paper)}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--ink);border:1px solid var(--line-dark);
  border-radius:var(--r-lg);padding:10px 12px;min-height:78px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 20px 44px -32px rgba(14,17,16,.75);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;padding:0 8px 0 4px}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-xs);background:var(--accent);color:var(--ink);
  font-weight:800;font-size:13px;display:grid;place-items:center;letter-spacing:.02em;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{color:#fff;font-size:15px;font-weight:700;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:#8B948F;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-chip{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border-radius:var(--r-sm);
  color:#B9C1BC;font-size:14px;font-weight:500;border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  white-space:nowrap;
}
.nav-chip svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;transition:stroke .24s var(--ease)}
.nav-chip:hover{background:var(--ink-2);color:#fff}
.nav-chip:hover svg{stroke:var(--accent)}
.nav-chip.active{background:rgba(198,242,78,.12);color:#fff;border-color:rgba(198,242,78,.38);box-shadow:inset 0 -2px 0 var(--accent)}
.nav-chip.active svg{stroke:var(--accent)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line-dark);border-radius:var(--r-xs);align-items:center;justify-content:center;color:#fff}
.nav-toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;white-space:nowrap;
  transition:transform .22s var(--ease),filter .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(198,242,78,.9)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-ghost-light{border:1px solid rgba(255,255,255,.24);color:#fff;background:transparent}
.btn-ghost-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-text{color:var(--ink);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent}
.btn-text:hover{border-bottom-color:var(--accent)}

/* ---------- Mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--ink);padding:22px 20px 28px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateY(-102%);opacity:0;pointer-events:none;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.mobile-drawer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:40px;height:40px;border:1px solid var(--line-dark);border-radius:var(--r-xs);display:grid;place-items:center;color:#fff}
.drawer-close svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mobile-grid a{
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:var(--r-sm);
  padding:16px 14px;color:#C8D0CB;font-size:14px;display:flex;flex-direction:column;gap:8px;
}
.mobile-grid a.active{border-color:rgba(198,242,78,.45);color:#fff;background:rgba(198,242,78,.1)}
.mobile-grid a svg{width:20px;height:20px;stroke:var(--accent);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.drawer-cta{margin-top:auto}

/* ---------- Sections ---------- */
.section{padding:clamp(62px,7.5vw,108px) 0}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.08em;color:var(--teal);text-transform:uppercase;
}
.sec-label::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:1px}
.sec-head-text h2{margin-top:12px}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15px;max-width:620px;line-height:1.7}

/* ---------- Hero ---------- */
.hero{padding:clamp(40px,5vw,72px) 0 clamp(48px,6vw,84px)}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(31,111,92,.28);background:rgba(31,111,92,.07);
  color:var(--teal);font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.hero h1{margin-top:20px}
.hero h1 .hl{position:relative;white-space:nowrap}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.16em;
  background:var(--accent);z-index:-1;border-radius:2px;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);line-height:1.7;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-stats{display:flex;margin-top:34px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.hero-stats li{flex:1;padding:16px 18px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:2px;min-width:0}
.hero-stats li:first-child{padding-left:0}
.hero-stats li:last-child{border-right:0;padding-right:0}
.hero-stats strong{font-size:19px;font-weight:700;letter-spacing:.01em}
.hero-stats span{font-size:12px;color:var(--muted)}
.hero-visual{position:relative}
.hero-frame{
  position:relative;aspect-ratio:4/3.1;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);transform:rotate(-3deg);
  box-shadow:0 34px 70px -44px rgba(14,17,16,.55),0 0 0 10px rgba(198,242,78,.06);
}
.hero-frame > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-frame::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(165deg,rgba(14,17,16,.5),rgba(14,17,16,.88));
}
.hero-frame-inner{
  position:absolute;left:22px;right:22px;bottom:22px;z-index:2;border-radius:var(--r-sm);overflow:hidden;
  border:1px solid rgba(255,255,255,.16);box-shadow:0 18px 34px -22px rgba(0,0,0,.8);
}
.hero-frame-inner img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-frame-top{position:absolute;top:22px;left:22px;z-index:2;display:flex;align-items:center;gap:8px;color:#fff;font-size:13px;letter-spacing:.02em}
.hero-frame-top i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:block;box-shadow:0 0 0 4px rgba(198,242,78,.2)}
.hero-badge{
  position:absolute;right:-10px;top:-14px;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:12px 16px;box-shadow:var(--shadow-2);font-size:12px;color:var(--muted);
  display:flex;flex-direction:column;gap:2px;z-index:3;
}
.hero-badge strong{font-size:17px;color:var(--ink);font-weight:700}

/* ---------- Value bar ---------- */
.value-card{
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);
}
.value-item{padding:28px 24px;border-right:1px solid var(--line);transition:background .24s var(--ease)}
.value-item:last-child{border-right:0}
.value-item:hover{background:#FBFBF8}
.value-num{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--teal)}
.value-item h3{font-size:17px;margin-top:10px}
.value-item p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.65}

/* ---------- Shots carousel ---------- */
.shot-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:10px 4px 22px;scrollbar-width:none;-ms-overflow-style:none;
}
.shot-track::-webkit-scrollbar{display:none}
.shot-card{
  flex:0 0 clamp(258px,33vw,412px);scroll-snap-align:center;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  opacity:.86;transform:scale(.97);transition:transform .3s var(--ease),opacity .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.shot-card.is-active{opacity:1;transform:scale(1.035);border-color:rgba(198,242,78,.75);box-shadow:var(--shadow-2)}
.shot-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-meta{padding:16px 18px 18px}
.shot-meta h3{font-size:16px}
.shot-meta p{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6}
.shot-controls{display:flex;align-items:center;gap:16px;margin-top:10px}
.shot-progress{flex:1;height:3px;background:var(--line);border-radius:999px;overflow:hidden;max-width:420px}
.shot-progress span{display:block;height:100%;width:25%;background:var(--accent);border-radius:999px;transition:width .3s var(--ease)}
.shot-arrows{display:flex;gap:10px;margin-left:auto}
.shot-arrow{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  background:var(--paper-2);transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.shot-arrow svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.shot-arrow:hover{background:var(--accent);color:var(--ink);border-color:var(--accent)}

/* ---------- Requirements ---------- */
.req-wrap{display:grid;grid-template-columns:1.35fr .65fr;gap:clamp(24px,4vw,48px);align-items:center}
.req-list{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.req-row{display:flex;justify-content:space-between;align-items:baseline;gap:20px;padding:18px 24px;border-bottom:1px solid var(--line)}
.req-row:last-child{border-bottom:0}
.req-row dt{color:var(--muted);font-size:14px}
.req-row dd{font-weight:600;font-size:15px;text-align:right}
.req-side{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line)}
.req-side img{width:100%;aspect-ratio:4/3.4;object-fit:cover}

/* ---------- Category cards ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{
  display:flex;flex-direction:column;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(198,242,78,.6)}
.cat-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.cat-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px}
.cat-body h3{font-size:17px}
.cat-body p{font-size:13.5px;color:var(--muted);line-height:1.65;flex:1}
.cat-link{font-size:13px;font-weight:600;color:var(--teal);display:inline-flex;align-items:center;gap:6px}
.cat-link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.cat-card:hover .cat-link svg{transform:translateX(3px)}

/* ---------- Reviews ---------- */
.reviews{column-count:3;column-gap:20px}
.review{
  break-inside:avoid;margin-bottom:20px;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-1);
}
.review.dark{background:var(--ink);border-color:var(--line-dark);color:#D7DED9}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:14px;color:var(--ink);flex-shrink:0;
}
.avatar.a1{background:var(--accent)}
.avatar.a2{background:#9BD3C3}
.avatar.a3{background:#D8DDD6}
.review-name{font-size:14px;font-weight:600;color:var(--ink)}
.review.dark .review-name{color:#fff}
.review-date{font-size:12px;color:var(--muted)}
.review p{margin-top:14px;font-size:14.5px;line-height:1.75;color:#414A45}
.review.dark p{color:#B8C0BA}
.stars{display:flex;gap:2px;margin-top:12px}
.stars svg{width:14px;height:14px;fill:var(--amber);stroke:none}

/* ---------- Download card ---------- */
.dl-card{
  position:relative;overflow:hidden;background:var(--ink);border:1px solid var(--line-dark);
  border-radius:var(--r-lg);padding:clamp(30px,4.6vw,56px);
  display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,4vw,56px);
}
.dl-card::before{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.18),transparent 68%);
}
.dl-left{position:relative;z-index:1}
.dl-left h2{color:#fff;font-size:clamp(24px,2.6vw,34px)}
.dl-left p{margin-top:14px;color:#98A29C;font-size:15px;max-width:460px;line-height:1.75}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.dl-platforms{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:32px;max-width:460px}
.dl-plat{
  display:flex;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--r-sm);
  border:1px solid var(--line-dark);background:var(--ink-2);color:#CBD3CE;font-size:14px;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.dl-plat:hover{border-color:var(--accent);color:#fff}
.dl-plat svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.dl-right{position:relative;z-index:1;display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.qr-box{
  width:168px;height:168px;border-radius:var(--r-sm);background:#F2F3EE;border:1px solid var(--line-dark);
  display:grid;place-items:center;padding:14px;
}
.qr-box svg{width:100%;height:100%;stroke:var(--ink);fill:none;stroke-width:1.2}
.dl-right small{color:#8B948F;font-size:12.5px;line-height:1.7}

/* ---------- CMS list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  display:flex;flex-direction:column;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(198,242,78,.6)}
.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-badge{
  align-self:flex-start;height:24px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;
  background:var(--teal);color:#fff;font-size:12px;letter-spacing:.04em;
}
.post-title{
  font-size:16.5px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;
}
.post-sum{
  font-size:13.5px;color:var(--muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;flex:1;
}
.post-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);padding-top:12px;border-top:1px solid var(--line)}
.post-meta svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round}
.empty-card{
  grid-column:1/-1;border:1px dashed #C9CCC4;border-radius:var(--r-md);background:var(--paper-2);
  padding:56px 24px;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
}
.empty-card svg{width:48px;height:48px;stroke:#B4B9B1;fill:none;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}
.empty-card p{color:var(--muted);font-size:14.5px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0 22px 18px;text-align:left;font-size:17px;font-weight:600;position:relative;line-height:1.55;
  transition:color .22s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:26px;width:2px;height:0;background:var(--accent);
  transition:height .3s var(--ease);
}
.faq-item.open .faq-q::before{height:22px}
.faq-q:hover{color:var(--teal)}
.faq-icon{width:20px;height:20px;flex-shrink:0;margin-top:4px;stroke:var(--muted);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s var(--ease),stroke .3s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg);stroke:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);color:var(--muted);font-size:15px;line-height:1.85}
.faq-a p{padding:0 40px 22px 18px;max-width:760px}
.faq-item.open .faq-a{max-height:260px}

/* ---------- Final CTA ---------- */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(28px,4vw,44px);
}
.cta-strip h2{font-size:clamp(22px,2.4vw,30px);max-width:560px}
.cta-strip p{margin-top:10px;color:var(--muted);font-size:14.5px;max-width:520px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#A9B2AD;margin-top:clamp(56px,7vw,96px);padding-top:clamp(48px,6vw,76px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:12px}
.footer-brand strong{color:#fff;font-size:15.5px;font-weight:700}
.footer-about{font-size:13.5px;color:#8B948F;line-height:1.8;max-width:290px}
.footer-title{font-size:13px;letter-spacing:.08em;color:#fff;font-weight:600;margin-bottom:16px}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:#A9B2AD;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-links a:hover{color:var(--accent);padding-left:3px}
.footer-meta{font-size:13.5px;line-height:1.9}
.footer-meta span{display:block;color:#8B948F}
.footer-bottom{
  margin-top:clamp(36px,4vw,56px);border-top:1px solid var(--line-dark);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#79827C;
}
.footer-bottom a{color:#9AA39D}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.06s}
.reveal.d2{transition-delay:.12s}
.reveal.d3{transition-delay:.18s}

@media(max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .brand-text em{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-stats{flex-wrap:wrap}
  .hero-stats li{flex:0 0 50%;border-right:0;padding-left:0}
  .hero-stats li:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .hero-visual{max-width:560px}
  .value-card{grid-template-columns:1fr 1fr}
  .value-item:nth-child(2){border-right:0}
  .value-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .req-wrap{grid-template-columns:1fr}
  .req-side{max-width:520px}
  .cat-grid{grid-template-columns:1fr 1fr}
  .post-grid{grid-template-columns:1fr 1fr}
  .reviews{column-count:2}
  .dl-card{grid-template-columns:1fr}
  .dl-right{flex-direction:row;align-items:center;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .brand-text strong{font-size:13.5px;white-space:normal}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .value-card{grid-template-columns:1fr}
  .value-item{border-right:0;border-bottom:1px solid var(--line)}
  .value-item:last-child{border-bottom:0}
  .cat-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .reviews{column-count:1}
  .dl-platforms{grid-template-columns:1fr}
  .dl-right{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .shot-card{flex:0 0 82%}
  .mobile-grid{grid-template-columns:1fr 1fr}
  .cta-strip{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --paper:#F6F6F3;
  --paper-2:#FFFFFF;
  --ink:#0E1110;
  --ink-2:#161A18;
  --accent:#C6F24E;
  --teal:#1F6F5C;
  --muted:#6B736E;
  --line:#E2E3DD;
  --line-dark:#2A302E;
  --amber:#E0A73B;
  --r-nav:22px;
  --r-lg:18px;
  --r-sm:14px;
  --r-input:12px;
  --shadow-sm:0 1px 2px rgba(14,17,16,.04);
  --shadow-hover:0 14px 30px -18px rgba(14,17,16,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
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;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:16px;z-index:60;padding:0;margin-bottom:8px;}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  min-height:78px;padding:12px 16px;
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:var(--r-nav);
  box-shadow:0 18px 40px -30px rgba(14,17,16,.6), inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--accent);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{color:#fff;font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-text em{color:#8E9793;font-style:normal;font-size:11px;letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 13px;border-radius:var(--r-sm);
  border:1px solid transparent;
  color:#C9CFCB;font-size:14px;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.nav-chip svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.nav-chip:hover{background:var(--ink-2);color:#fff;}
.nav-chip:hover svg{color:var(--accent);}
.nav-chip.active{
  background:rgba(198,242,78,.12);
  color:#fff;
  border-color:rgba(198,242,78,.28);
  box-shadow:inset 0 -2px 0 var(--accent);
}
.nav-chip.active svg{color:var(--accent);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-accent{background:var(--accent);color:var(--ink);}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 10px 24px -14px rgba(198,242,78,.9);filter:brightness(1.06);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-1px);}
.btn-line{border-color:var(--line-dark);color:#fff;background:transparent;}
.btn-line:hover{background:var(--ink-2);border-color:rgba(198,242,78,.4);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line-dark);border-radius:12px;
  align-items:center;justify-content:center;color:#fff;
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;}

/* ---------- article page layout ---------- */
.page{padding:34px 0 clamp(56px,7vw,96px);}
.banner-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(14,17,16,.86),rgba(14,17,16,.6)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:clamp(24px,4vw,44px);
  color:#fff;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#AEB6B1;margin-bottom:16px;}
.breadcrumb a{color:#D6DCD7;transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span.sep{color:#5C6560;}
.breadcrumb span.current{color:#8E9793;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-h1{
  font-size:clamp(28px,3.6vw,40px);font-weight:800;line-height:1.25;color:#fff;
  letter-spacing:.005em;
}
.page-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;color:#A9B2AC;
  margin-bottom:14px;
}
.page-kicker::before{content:"";width:6px;height:6px;background:var(--accent);display:inline-block;border-radius:1px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:#B6BDB8;}
.meta-row .dot{width:1px;height:14px;background:#3A413D;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-teal{background:var(--teal);color:#fff;}
.badge-outline{border:1px solid rgba(198,242,78,.55);color:var(--accent);}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px;margin-top:34px;align-items:start;}

.article-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(22px,3.4vw,40px);box-shadow:var(--shadow-sm);
}
.article-body{max-width:760px;}
.article-body p{font-size:17.5px;line-height:1.9;color:#222724;margin:0 0 1.25em;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.5vw,28px);font-weight:700;line-height:1.3;
  margin:42px 0 16px;padding-left:14px;color:var(--ink);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:18px;background:var(--accent);border-radius:2px;}
.article-body h3{font-size:20px;font-weight:600;line-height:1.45;margin:28px 0 12px;color:var(--ink);}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.35em;}
.article-body li{font-size:17px;line-height:1.85;margin-bottom:.5em;}
.article-body ul li::marker{color:var(--teal);}
.article-body ol li::marker{color:var(--teal);font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:rgba(198,242,78,.08);border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:16.5px;line-height:1.85;color:#2A302C;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-lg);border:1px solid var(--line);margin:24px 0 10px;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body a{color:var(--ink);border-bottom:1px solid var(--accent);transition:border-color .2s var(--ease);}
.article-body a:hover{border-bottom-width:2px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border:1px solid var(--line);}
.article-body thead th{background:var(--ink);color:#fff;font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFAF8;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body code{background:#F1F2EE;border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:.92em;}

.side{display:flex;flex-direction:column;gap:18px;position:sticky;top:118px;}
.side-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-sm);}
.side-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--teal);margin-bottom:14px;}
.kv{display:flex;flex-direction:column;}
.kv-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;}
.kv-row:last-child{border-bottom:0;}
.kv-row dt{color:var(--muted);}
.kv-row dd{margin:0;font-weight:600;color:var(--ink);}
.side-cover{border-radius:var(--r-sm);border:1px solid var(--line);overflow:hidden;margin-bottom:14px;}
.side-cover img{width:100%;height:150px;object-fit:cover;}
.side-cta{background:var(--ink);border-color:var(--line-dark);color:#fff;}
.side-cta .side-title{color:var(--accent);}
.side-cta p{font-size:14px;line-height:1.7;color:#B6BDB8;margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-cta .btn + .btn{margin-top:10px;}

/* ---------- bottom sections ---------- */
.section{margin-top:clamp(48px,6vw,84px);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.25;}
.section-head h2::before{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--accent);margin-right:10px;vertical-align:middle;}
.cta-card{
  display:grid;grid-template-columns:minmax(0,1.4fr) auto;gap:26px;align-items:center;
  background:var(--ink);border:1px solid var(--line-dark);border-radius:var(--r-nav);
  padding:clamp(26px,3.6vw,42px);color:#fff;position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.28),transparent 70%);
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;margin-bottom:12px;}
.cta-card p{color:#B6BDB8;font-size:15px;line-height:1.75;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.entry-card{
  display:flex;flex-direction:column;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(198,242,78,.5);}
.entry-card img{width:100%;height:132px;object-fit:cover;}
.entry-card .entry-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1;}
.entry-card h3{font-size:16px;font-weight:600;line-height:1.45;}
.entry-card p{font-size:13.5px;line-height:1.65;color:var(--muted);}
.entry-card .entry-foot{margin-top:auto;font-size:13px;color:var(--teal);font-weight:600;}
.empty-card{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--paper-2);
  padding:44px 24px;text-align:center;color:var(--muted);
}
.empty-card svg{width:48px;height:48px;fill:none;stroke:var(--muted);stroke-width:1.4;margin:0 auto 14px;}
.empty-card p{font-size:15px;margin-bottom:14px;color:var(--ink);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--teal);}
.text-link:hover{color:var(--ink);}
.text-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#B6BDB8;margin-top:clamp(56px,7vw,96px);padding:clamp(44px,5vw,68px) 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700;}
.footer-about{font-size:13.5px;line-height:1.75;color:#8E9793;max-width:320px;}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B6BDB8;transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--accent);}
.footer-meta{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#8E9793;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#7C8580;
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 12px);
    background:var(--ink);border:1px solid var(--line-dark);border-radius:var(--r-nav);
    padding:16px;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;
    box-shadow:0 24px 50px -30px rgba(14,17,16,.8);
  }
  .nav-links.open{display:grid;}
  .nav-chip{height:52px;justify-content:flex-start;width:100%;}
  .nav-panel{position:relative;flex-wrap:wrap;}
  .nav-right{margin-left:auto;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .side{position:static;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .site-header{top:10px;}
  .brand-text em{display:none;}
  .nav-cta{display:none;}
  .article-body p{font-size:16.5px;line-height:1.85;}
  .grid-4{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .meta-row{gap:10px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text strong{font-size:15px;}
  .article-card{padding:20px 16px;}
  .cta-actions .btn{width:100%;}
  .nav-links{grid-template-columns:minmax(0,1fr);}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
    --paper:#F6F6F3;
    --paper-2:#FFFFFF;
    --ink:#0E1110;
    --ink-2:#161A18;
    --accent:#C6F24E;
    --teal:#1F6F5C;
    --muted:#6B736E;
    --line:#E2E3DD;
    --line-dark:#2A302E;
    --amber:#E0A73B;
    --r-nav:22px;
    --r-lg:18px;
    --r-sm:14px;
    --r-field:12px;
    --r-pill:999px;
    --shadow-1:0 1px 2px rgba(14,17,16,.04);
    --shadow-2:0 14px 30px -18px rgba(14,17,16,.28);
    --ease:cubic-bezier(.2,.7,.2,1);
    --section:clamp(64px,8vw,120px);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    font-feature-settings:"tnum";
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:16px;
    z-index:80;
    padding:0 0 8px;
  }
  .nav-panel{
    display:flex;
    align-items:center;
    gap:18px;
    min-height:80px;
    padding:12px 16px;
    background:var(--ink);
    border:1px solid var(--line-dark);
    border-radius:var(--r-nav);
    box-shadow:0 18px 40px -28px rgba(14,17,16,.6);
    position:relative;
  }
  .nav-panel::before{
    content:"";
    position:absolute;
    left:18px;right:18px;top:0;
    height:1px;
    background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.22),rgba(255,255,255,0));
    pointer-events:none;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:12px;
    flex:0 0 auto;
    color:#fff;
  }
  .brand-mark{
    width:42px;height:42px;
    flex:0 0 42px;
    display:grid;place-items:center;
    border-radius:var(--r-sm);
    background:var(--accent);
    color:var(--ink);
    font-weight:800;
    font-size:15px;
    letter-spacing:.02em;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25;}
  .brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em;}
  .brand-text em{font-style:normal;font-size:11px;color:#9AA39D;letter-spacing:.02em;}

  .nav-links{
    display:flex;
    align-items:center;
    gap:8px;
    margin-left:auto;
  }
  .nav-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:44px;
    padding:0 14px;
    border-radius:var(--r-sm);
    color:#C9CFCA;
    font-size:14px;
    white-space:nowrap;
    border:1px solid transparent;
    transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  }
  .nav-chip svg{
    width:20px;height:20px;
    fill:none;
    stroke:currentColor;
    stroke-width:1.6;
    stroke-linecap:round;
    stroke-linejoin:round;
    flex:0 0 20px;
  }
  .nav-chip:hover{background:var(--ink-2);color:#fff;}
  .nav-chip:hover svg{stroke:var(--accent);}
  .nav-chip.active{
    background:rgba(198,242,78,.12);
    color:#fff;
    box-shadow:inset 0 -2px 0 var(--accent);
  }
  .nav-chip.active svg{stroke:var(--accent);}

  .nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .nav-toggle{
    display:none;
    width:40px;height:40px;
    border-radius:var(--r-sm);
    border:1px solid var(--line-dark);
    background:transparent;
    color:#fff;
    place-items:center;
  }
  .nav-toggle svg{
    width:20px;height:20px;
    fill:none;stroke:currentColor;stroke-width:1.6;
    stroke-linecap:round;stroke-linejoin:round;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 26px;
    border-radius:var(--r-pill);
    font-size:15px;
    font-weight:600;
    border:1px solid transparent;
    transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
    text-align:center;
  }
  .btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
  .btn-accent{background:var(--accent);color:var(--ink);}
  .btn-accent:hover{background:#d3fa66;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(14,17,16,.5);}
  .btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn:focus-visible,.nav-chip:focus-visible,.nav-toggle:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
  }
  .btn[disabled]{opacity:.4;filter:saturate(.4);pointer-events:none;}

  /* ---------- 通用标签/徽章 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    height:24px;
    padding:0 12px;
    border-radius:var(--r-pill);
    font-size:12px;
    letter-spacing:.04em;
    font-weight:600;
  }
  .badge-solid{background:var(--teal);color:#fff;}
  .badge-accent{background:transparent;border:1px solid var(--accent);color:var(--ink);}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--teal);
    text-transform:uppercase;
  }
  .eyebrow::before{
    content:"";
    width:6px;height:6px;
    background:var(--accent);
    display:block;
  }
  .section-title{
    display:flex;
    align-items:center;
    gap:12px;
    font-size:clamp(26px,3vw,38px);
    font-weight:700;
    line-height:1.2;
    letter-spacing:0;
  }
  .section-title .idx{
    font-size:13px;
    font-weight:600;
    color:var(--muted);
    letter-spacing:.08em;
    padding-top:6px;
  }
  .section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:18px;
    margin-bottom:36px;
  }
  .section-sub{
    max-width:620px;
    color:var(--muted);
    font-size:15px;
    line-height:1.7;
  }

  /* ---------- 首屏 ---------- */
  .page-hero{padding:26px 0 0;}
  .hero-card{
    position:relative;
    border-radius:var(--r-lg);
    border:1px solid var(--line);
    overflow:hidden;
    padding:clamp(32px,4vw,54px);
    background-image:
      linear-gradient(rgba(14,17,16,.16),rgba(14,17,16,.16)),
      url("/assets/images/backpic/back-1.webp");
    background-size:cover;
    background-position:center;
    box-shadow:var(--shadow-1);
  }
  .hero-card::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(246,246,243,.94) 0%,rgba(246,246,243,.86) 48%,rgba(246,246,243,.55) 100%);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;max-width:760px;}
  .hero-inner h1{
    font-size:clamp(34px,4.6vw,58px);
    font-weight:800;
    line-height:1.1;
    margin:18px 0 18px;
    letter-spacing:0;
  }
  .hero-inner h1 .hl{
    box-shadow:inset 0 -10px 0 rgba(198,242,78,.65);
  }
  .hero-lead{
    font-size:17px;
    line-height:1.75;
    color:#2C322F;
    max-width:620px;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin:28px 0 26px;
  }
  .hero-stats{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    align-items:center;
    font-size:13px;
    color:var(--muted);
    padding-top:18px;
    border-top:1px solid rgba(14,17,16,.14);
  }
  .hero-stats span{display:inline-flex;align-items:center;gap:6px;}
  .hero-stats span+span::before{
    content:"";
    width:1px;height:12px;
    background:rgba(14,17,16,.2);
    margin-right:12px;
    display:inline-block;
  }

  /* ---------- 价值条 ---------- */
  .value-strip{
    margin-top:28px;
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    display:grid;
    grid-template-columns:repeat(4,1fr);
    overflow:hidden;
    box-shadow:var(--shadow-1);
  }
  .value-item{
    padding:24px;
    border-right:1px solid var(--line);
    transition:background .24s var(--ease);
  }
  .value-item:last-child{border-right:none;}
  .value-item:hover{background:#FBFCF7;}
  .value-item .no{
    font-size:12px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--teal);
  }
  .value-item h3{font-size:17px;font-weight:600;margin:10px 0 6px;}
  .value-item p{font-size:14px;color:var(--muted);line-height:1.65;}

  /* ---------- 分栏导读 ---------- */
  .section{padding-top:var(--section);}
  .guide-layout{
    display:grid;
    grid-template-columns:260px minmax(0,1fr);
    gap:44px;
    align-items:start;
  }
  .guide-nav{
    position:sticky;
    top:124px;
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    background:var(--paper-2);
    padding:22px 20px;
    box-shadow:var(--shadow-1);
  }
  .guide-nav .guide-nav-title{
    font-size:12px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--muted);
    padding-bottom:12px;
    border-bottom:1px solid var(--line);
    margin-bottom:8px;
  }
  .guide-nav a{
    display:block;
    position:relative;
    padding:11px 0 11px 14px;
    font-size:14px;
    color:#313734;
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease),padding-left .2s var(--ease);
  }
  .guide-nav a:last-child{border-bottom:none;}
  .guide-nav a::before{
    content:"";
    position:absolute;
    left:0;top:14px;
    width:2px;height:16px;
    background:transparent;
    transition:background .2s var(--ease);
  }
  .guide-nav a:hover{color:var(--ink);padding-left:18px;}
  .guide-nav a.current{color:var(--ink);font-weight:600;}
  .guide-nav a.current::before{background:var(--accent);}

  .guide-flow{min-width:0;}
  .guide-item{
    display:grid;
    grid-template-columns:minmax(0,1fr) 220px;
    gap:26px;
    padding:30px 0;
    border-top:1px solid var(--line);
  }
  .guide-item:first-child{border-top:none;padding-top:0;}
  .guide-item .no{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:34px;height:26px;
    padding:0 8px;
    border-radius:var(--r-sm);
    background:rgba(31,111,92,.1);
    color:var(--teal);
    font-size:12px;
    font-weight:700;
    letter-spacing:.06em;
    margin-bottom:12px;
  }
  .guide-item h3{font-size:21px;font-weight:600;line-height:1.35;margin-bottom:10px;}
  .guide-item p{font-size:15px;line-height:1.75;color:#3A403D;}
  .guide-item p+p{margin-top:10px;}
  .guide-figure{
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    overflow:hidden;
    background:var(--paper-2);
    align-self:start;
  }
  .guide-figure img{width:100%;height:150px;object-fit:cover;}
  .guide-figure figcaption{
    font-size:13px;
    color:var(--muted);
    padding:12px 14px;
    border-top:1px solid var(--line);
  }
  .tips{
    margin-top:22px;
    border:1px solid var(--line);
    border-left:3px solid var(--accent);
    border-radius:var(--r-sm);
    background:#FBFCF7;
    padding:18px 20px;
    font-size:14px;
    line-height:1.75;
    color:#313734;
  }

  /* ---------- 速览键值卡 ---------- */
  .facts-card{
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:24px;
    box-shadow:var(--shadow-1);
  }
  .facts-card h3{font-size:17px;font-weight:600;margin-bottom:12px;}
  .fact-row{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:16px;
    padding:11px 0;
    border-bottom:1px solid var(--line);
    font-size:14px;
  }
  .fact-row:last-of-type{border-bottom:none;}
  .fact-row .k{color:var(--muted);}
  .fact-row .v{font-weight:600;text-align:right;}

  /* ---------- FAQ ---------- */
  .faq-wrap{
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    background:var(--paper-2);
    overflow:hidden;
    box-shadow:var(--shadow-1);
  }
  details.faq-item{border-bottom:1px solid var(--line);}
  details.faq-item:last-child{border-bottom:none;}
  details.faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    font-size:16px;
    font-weight:600;
    position:relative;
    transition:background .2s var(--ease);
  }
  details.faq-item summary::-webkit-details-marker{display:none;}
  details.faq-item summary:hover{background:#FBFCF7;}
  details.faq-item summary .chev{
    width:22px;height:22px;flex:0 0 22px;
    fill:none;stroke:var(--muted);stroke-width:1.8;
    stroke-linecap:round;stroke-linejoin:round;
    transition:transform .26s var(--ease),stroke .2s var(--ease);
  }
  details.faq-item[open] summary .chev{transform:rotate(180deg);stroke:var(--ink);}
  details.faq-item[open] summary::before{
    content:"";
    position:absolute;
    left:0;top:18px;bottom:18px;
    width:2px;
    background:var(--accent);
  }
  .faq-answer{
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.8;
    color:#3A403D;
  }

  /* ---------- 相关入口 ---------- */
  .related-band{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
  }
  .related-card{
    display:block;
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:22px 20px;
    box-shadow:var(--shadow-1);
    transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  }
  .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(198,242,78,.6);}
  .related-card .rc-no{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted);}
  .related-card h3{font-size:16px;font-weight:600;margin:10px 0 6px;}
  .related-card p{font-size:13px;color:var(--muted);line-height:1.65;}
  .related-card.current{border-color:rgba(198,242,78,.8);background:#FBFDF3;}

  /* ---------- CTA ---------- */
  .cta-card{
    background:var(--ink);
    color:#fff;
    border-radius:var(--r-lg);
    border:1px solid var(--line-dark);
    padding:clamp(30px,4vw,52px);
    display:grid;
    grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
    gap:32px;
    align-items:center;
    position:relative;
    overflow:hidden;
  }
  .cta-card::before{
    content:"";
    position:absolute;
    width:320px;height:320px;
    right:-90px;top:-120px;
    background:radial-gradient(circle,rgba(198,242,78,.16),rgba(198,242,78,0) 68%);
    pointer-events:none;
  }
  .cta-card h2{
    font-size:clamp(24px,2.6vw,34px);
    font-weight:700;
    line-height:1.25;
    margin-bottom:12px;
  }
  .cta-card p{color:#B7BEB9;font-size:15px;line-height:1.75;max-width:520px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}
  .cta-actions .btn-outline{color:#fff;border-color:#4A5250;}
  .cta-actions .btn-outline:hover{background:#fff;color:var(--ink);border-color:#fff;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:var(--section);
    background:var(--ink);
    color:#C9CFCA;
    padding:64px 0 26px;
    border-top:1px solid var(--line-dark);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:36px;
    padding-bottom:40px;
  }
  .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:14px;}
  .footer-brand strong{font-size:16px;font-weight:700;}
  .footer-about{font-size:13px;line-height:1.75;color:#8E9791;max-width:280px;}
  .footer-title{font-size:13px;letter-spacing:.08em;color:#fff;margin-bottom:14px;font-weight:600;}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:14px;color:#9AA39D;transition:color .2s var(--ease);}
  .footer-links a:hover{color:var(--accent);}
  .footer-meta{display:flex;flex-direction:column;gap:10px;font-size:13px;color:#9AA39D;}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    justify-content:space-between;
    align-items:center;
    border-top:1px solid var(--line-dark);
    padding-top:22px;
    font-size:13px;
    color:#7E877F;
  }

  /* ---------- 进入视口动效 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
  .reveal.in{opacity:1;transform:none;}

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
    .reveal{opacity:1;transform:none;}
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .container{padding:0 24px;}
    .nav-links{
      position:fixed;
      inset:0;
      display:none;
      grid-template-columns:1fr 1fr;
      align-content:start;
      gap:10px;
      padding:112px 24px 130px;
      background:rgba(14,17,16,.97);
      z-index:60;
      margin-left:0;
      overflow-y:auto;
    }
    .nav-links.open{display:grid;}
    .nav-chip{
      height:auto;
      min-height:64px;
      flex-direction:column;
      align-items:flex-start;
      justify-content:center;
      gap:8px;
      padding:12px;
      background:var(--ink-2);
      color:#D6DCD7;
      font-size:14px;
      white-space:normal;
    }
    .nav-chip.active{background:rgba(198,242,78,.14);color:#fff;}
    .nav-toggle{display:grid;position:relative;z-index:70;}
    .nav-right{margin-left:auto;}
    .nav-cta{display:none;}
    .guide-layout{grid-template-columns:1fr;gap:28px;}
    .guide-nav{position:static;}
    .value-strip{grid-template-columns:repeat(2,1fr);}
    .value-item:nth-child(2){border-right:none;}
    .value-item:nth-child(1),.value-item:nth-child(2){border-bottom:1px solid var(--line);}
    .related-band{grid-template-columns:repeat(2,1fr);}
    .cta-card{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }

  @media (max-width:767px){
    .guide-item{grid-template-columns:1fr;gap:16px;}
    .guide-figure img{height:180px;}
    .hero-actions .btn{width:100%;}
  }

  @media (max-width:639px){
    .container{padding:0 20px;}
    .value-strip{grid-template-columns:1fr;}
    .value-item{border-right:none;border-bottom:1px solid var(--line);}
    .value-item:last-child{border-bottom:none;}
    .related-band{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .hero-stats span+span::before{display:none;}
    .hero-stats{gap:10px;flex-direction:column;align-items:flex-start;}
    .nav-links{grid-template-columns:1fr;padding:104px 20px 120px;}
    .cta-actions .btn{width:100%;}
  }

/* roulang page: category2 */
:root{
  --paper:#F6F6F3;
  --paper-2:#FFFFFF;
  --ink:#0E1110;
  --ink-2:#161A18;
  --accent:#C6F24E;
  --accent-soft:rgba(198,242,78,.12);
  --teal:#1F6F5C;
  --muted:#6B736E;
  --line:#E2E3DD;
  --line-dark:#2A302E;
  --amber:#E0A73B;
  --r-panel:22px;
  --r-lg:18px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 1px 2px rgba(14,17,16,.04);
  --sh-2:0 14px 30px -18px rgba(14,17,16,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --sec-gap:clamp(64px,8vw,110px);
}

*,*::before,*::after{box-sizing:border-box}
html{overflow-x:hidden;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:700;line-height:1.2}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num,time,.tabular{font-variant-numeric:tabular-nums}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:12px;z-index:60;padding-bottom:8px}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:80px;
  padding:0 18px;
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:var(--r-panel);
  box-shadow:0 18px 40px -30px rgba(14,17,16,.6);
}
.nav-panel::before{
  content:"";
  position:absolute;
  left:18px;right:18px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-xs);
  background:var(--accent);color:var(--ink);
  display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.02em;
}
.brand-text strong{display:block;color:#fff;font-size:15px;font-weight:700;line-height:1.25}
.brand-text em{display:block;font-style:normal;font-size:11px;color:#8E9792;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:14px;color:#C4CBC6;
  white-space:nowrap;
}
.nav-chip svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.nav-chip:hover{background:var(--ink-2);color:#fff}
.nav-chip:hover svg{stroke:var(--accent)}
.nav-chip.active{background:var(--accent-soft);color:#fff;box-shadow:inset 0 -2px 0 var(--accent)}
.nav-chip.active svg{stroke:var(--accent)}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-xs);
  border:1px solid var(--line-dark);color:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}

.nav-drawer{
  position:fixed;inset:0;z-index:90;
  display:none;flex-direction:column;
  padding:22px 20px 28px;
  background:var(--ink);
  overflow-y:auto;
}
.nav-drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-xs);
  border:1px solid var(--line-dark);color:#fff;
  display:grid;place-items:center;
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.drawer-grid .nav-chip{height:64px;justify-content:flex-start;background:var(--ink-2);color:#E4E8E5;width:100%}
.drawer-grid .nav-chip.active{background:var(--accent-soft);color:#fff}
.drawer-cta{margin-top:auto;padding-top:24px}

/* ---------- buttons ---------- */
.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:600;
  border:1px solid transparent;
  transition:transform .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:#D3F96C;transform:translateY(-1px);box-shadow:0 12px 24px -16px rgba(14,17,16,.5)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-onink{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-onink:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;filter:saturate(.4);cursor:not-allowed;transform:none}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--accent);
  padding-bottom:2px;
}
.btn-text:hover{border-bottom-width:2px}
.btn-text svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- page head ---------- */
.page-head-wrap{margin-top:18px}
.page-head{
  position:relative;overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  min-height:260px;
  padding:clamp(26px,4vw,48px);
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:32px;
  align-items:center;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(246,246,243,.97) 0%,rgba(246,246,243,.86) 52%,rgba(246,246,243,.6) 100%),
             linear-gradient(0deg,rgba(14,17,16,.14),rgba(14,17,16,.14));
}
.page-head > *{position:relative}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.crumb a:hover{color:var(--ink)}
.crumb span.sep{color:#B9BEB8}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-teal{background:var(--teal);color:#fff}
.badge-accent{border:1px solid var(--accent);color:var(--ink);background:rgba(255,255,255,.6)}
.badge-line{border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.7)}
.page-head h1{
  font-size:clamp(30px,3.6vw,48px);
  font-weight:800;line-height:1.14;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.hl{position:relative;display:inline-block}
.hl::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:var(--accent);opacity:.55;z-index:-1;border-radius:2px;
}
.page-head .lead{font-size:16px;color:#3C423E;max-width:52ch;line-height:1.8}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.trust-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.trust-row b{color:var(--ink);font-weight:700}
.trust-row .divider{width:1px;height:14px;background:var(--line)}
.head-visual{position:relative}
.head-visual .shot{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  overflow:hidden;
  transform:rotate(3deg);
  box-shadow:0 30px 60px -40px rgba(14,17,16,.55),0 0 0 10px rgba(198,242,78,.06);
}
.head-visual .shot img{width:100%;aspect-ratio:16/11;object-fit:cover}

/* ---------- sections ---------- */
.section{margin-top:var(--sec-gap)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}
.sec-eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--teal);margin-bottom:14px}
.sq{width:6px;height:6px;background:var(--accent);display:inline-block}
.sec-title{font-size:clamp(24px,2.9vw,36px);font-weight:700;line-height:1.22}
.sec-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:62ch;line-height:1.75}

.panel{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.panel-dark{
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:var(--r-lg);
  color:#fff;
  position:relative;overflow:hidden;
  box-shadow:0 24px 50px -36px rgba(14,17,16,.8);
}
.panel-dark::before{
  content:"";position:absolute;right:-80px;top:-100px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(198,242,78,.18),transparent 68%);
}

/* ---------- download cards ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.dl-card{
  display:flex;flex-direction:column;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(198,242,78,.45)}
.dl-card .thumb{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
.dl-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.dl-card:hover .thumb img{transform:scale(1.03)}
.dl-card .thumb .badge{position:absolute;left:16px;top:16px}
.dl-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.dl-body h3{font-size:20px;font-weight:600;line-height:1.35}
.dl-body p{font-size:14px;color:var(--muted);line-height:1.7}
.dl-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted)}
.dl-meta b{color:var(--ink);font-weight:600}
.dl-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:16px;border-top:1px solid var(--line);
}
.dl-foot .file{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- spec rows ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:32px;align-items:start}
.spec-card{padding:8px 24px}
.spec-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:20px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:0}
.spec-row .k{font-size:14px;color:var(--muted)}
.spec-row .v{font-size:15px;font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.spec-visual{border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;background:var(--paper-2)}
.spec-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.spec-note{padding:18px 20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px;display:flex;flex-direction:column;gap:10px;
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.step:hover{border-color:rgba(198,242,78,.5);transform:translateY(-2px)}
.step .no{font-size:22px;font-weight:800;color:var(--ink);letter-spacing:.02em;font-variant-numeric:tabular-nums}
.step .no i{display:block;width:22px;height:2px;background:var(--accent);margin-top:8px;font-style:normal}
.step h3{font-size:16px;font-weight:600}
.step p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- changelog ---------- */
.log{padding:8px 24px}
.log-item{
  display:grid;grid-template-columns:150px minmax(0,1fr) auto;gap:20px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.log-item:last-child{border-bottom:0}
.log-item .ver{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.log-item .ver span{display:block;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.02em}
.log-item p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 0;
  font-size:16.5px;font-weight:600;
  position:relative;
  transition:color .24s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"";position:absolute;left:-14px;top:20px;bottom:20px;width:2px;
  background:var(--accent);opacity:0;transition:opacity .24s var(--ease);
}
.faq details[open] summary::before{opacity:1}
.faq summary:hover{color:var(--teal)}
.faq .chev{width:22px;height:22px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s var(--ease)}
.faq details[open] .chev{transform:rotate(180deg);stroke:var(--teal)}
.faq .answer{padding:0 40px 24px 0;font-size:15px;line-height:1.85;color:#414743;max-width:80ch}

/* ---------- cta ---------- */
.cta-card{
  padding:clamp(28px,4vw,48px);
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:36px;align-items:center;
}
.cta-card h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.24;color:#fff}
.cta-card p{margin-top:14px;font-size:15px;color:#B6BDB8;line-height:1.8;max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-side{display:flex;align-items:center;gap:20px;justify-content:flex-end}
.qr{
  width:132px;height:132px;flex:0 0 auto;
  background:rgba(255,255,255,.94);
  border:1px solid rgba(255,255,255,.4);
  border-radius:var(--r-sm);
  display:grid;place-items:center;
  color:var(--ink);
}
.qr svg{width:64px;height:64px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.qr-cap{font-size:13px;color:#98A09B;line-height:1.7;max-width:16ch}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(198,242,78,.5);box-shadow:var(--sh-2)}
.rel-card .badge{align-self:flex-start}
.rel-card strong{font-size:16px;font-weight:600}
.rel-card span{font-size:13.5px;color:var(--muted);line-height:1.7}
.rel-card .go{margin-top:6px;font-size:13px;font-weight:600;color:var(--teal)}
.rel-card.current{border-color:var(--accent);background:linear-gradient(180deg,rgba(198,242,78,.1),rgba(255,255,255,1))}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--sec-gap);background:var(--ink);color:#C9D0CB;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-about{font-size:13.5px;line-height:1.8;color:#8F9792;max-width:34ch}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#A9B1AC}
.footer-links a:hover{color:var(--accent)}
.footer-meta{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#8F9792;font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#7E8681;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .nav-chip{padding:0 11px;font-size:13.5px}
  .nav-links{gap:6px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-panel{min-height:72px}
  .page-head{grid-template-columns:1fr;gap:26px}
  .head-visual .shot{transform:rotate(0deg)}
  .split{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr}
  .cta-side{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .dl-grid{grid-template-columns:1fr}
  .log-item{grid-template-columns:1fr;gap:8px}
  .log-item .ver span{display:inline;margin-left:8px}
  .spec-card{padding:4px 18px}
  .spec-row{flex-direction:column;align-items:flex-start;gap:6px}
  .spec-row .v{text-align:left}
  .log{padding:4px 18px}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .head-actions .btn{width:100%}
  .trust-row{gap:10px;font-size:12.5px}
  .faq summary{font-size:15.5px}
  .faq .answer{padding-right:8px}
}

/* roulang page: category3 */
:root{
  --paper:#F6F6F3;
  --paper-2:#FFFFFF;
  --ink:#0E1110;
  --ink-2:#161A18;
  --accent:#C6F24E;
  --teal:#1F6F5C;
  --muted:#6B736E;
  --line:#E2E3DD;
  --line-dark:#2A302E;
  --amber:#E0A73B;
  --r-nav:22px;
  --r-lg:18px;
  --r-sm:14px;
  --r-input:12px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{position:sticky;top:16px;z-index:60}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:var(--r-nav);
  padding:12px 16px;
  min-height:78px;
  box-shadow:0 20px 44px -32px rgba(14,17,16,.75);
  position:relative;
}
.nav-panel::before{
  content:"";position:absolute;left:14px;right:14px;top:1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--accent);color:var(--ink);
  display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.02em;flex-shrink:0;
}
.brand-text strong{display:block;font-size:16px;font-weight:700;color:#fff;line-height:1.3;letter-spacing:.01em}
.brand-text em{display:block;font-style:normal;font-size:11px;color:rgba(255,255,255,.5);line-height:1.4}
.nav-links{display:flex;gap:8px;margin-left:auto}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 13px;border-radius:var(--r-sm);
  border:1px solid transparent;
  color:rgba(255,255,255,.72);font-size:14px;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.nav-chip svg{
  width:20px;height:20px;flex-shrink:0;
  fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.nav-chip:hover{background:var(--ink-2);border-color:var(--line-dark);color:#fff}
.nav-chip.active{background:rgba(198,242,78,.12);color:#fff;box-shadow:inset 0 -2px 0 var(--accent)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-input);
  border:1px solid var(--line-dark);background:transparent;
  align-items:center;justify-content:center;cursor:pointer;color:#fff;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.nav-toggle:hover{background:var(--ink-2);border-color:rgba(198,242,78,.5)}

/* 抽屉 */
.nav-drawer{position:fixed;inset:0;z-index:90;background:rgba(14,17,16,.97);padding:24px 20px;overflow:auto}
.nav-drawer[hidden]{display:none}
.drawer-head{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:20px}
.drawer-head strong{font-size:16px}
.drawer-head .drawer-close{
  margin-left:auto;width:40px;height:40px;border-radius:var(--r-input);
  border:1px solid var(--line-dark);background:transparent;color:#fff;cursor:pointer;
  display:grid;place-items:center;
}
.drawer-head .drawer-close svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.drawer-grid .nav-chip{
  height:auto;flex-direction:column;align-items:flex-start;gap:10px;padding:14px;
  background:var(--ink-2);border-color:var(--line-dark);font-size:14px;
}
.drawer-grid .nav-chip.active{box-shadow:inset 0 -2px 0 var(--accent);background:rgba(198,242,78,.12)}

/* ============ 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:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(14,17,16,.5)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-outline-light{border-color:rgba(255,255,255,.38);color:#fff;background:transparent}
.btn-outline-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn[aria-disabled="true"]{opacity:.4;filter:saturate(.4);pointer-events:none}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;margin-top:22px;
  border-radius:var(--r-lg);border:1px solid var(--line);
  min-height:280px;
  display:flex;align-items:center;
  padding:clamp(28px,4vw,52px);
  background-image:linear-gradient(100deg,rgba(14,17,16,.92) 0%,rgba(14,17,16,.78) 48%,rgba(14,17,16,.58) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-inner{max-width:760px}
.crumb{font-size:13px;color:rgba(255,255,255,.62);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.5}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:24px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(198,242,78,.6);color:var(--accent);font-size:12px;letter-spacing:.04em;margin-bottom:16px;
}
.hero-title{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.12;
  color:#fff;margin:0 0 16px;letter-spacing:0;
}
.hero-title .hl{position:relative;white-space:nowrap}
.hero-title .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;background:rgba(198,242,78,.42);z-index:-1;
}
.hero-sub{font-size:17px;line-height:1.7;color:rgba(255,255,255,.85);margin:0 0 26px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.hero-stats{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:rgba(255,255,255,.75)}
.hero-stats span{display:inline-flex;align-items:center;gap:8px}
.hero-stats span::before{content:"";width:1px;height:12px;background:rgba(255,255,255,.28)}
.hero-stats span:first-child::before{display:none}

/* ============ 板块 ============ */
.section{padding:clamp(52px,6.4vw,92px) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.sec-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--teal)}
.sec-sq{width:6px;height:6px;background:var(--accent);display:inline-block}
.sec-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.22;margin:10px 0 0;color:var(--ink)}
.sec-desc{font-size:15px;color:var(--muted);max-width:620px;margin:10px 0 0;line-height:1.75}
.sec-link{font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid var(--line);padding-bottom:3px;transition:color .24s var(--ease),border-color .24s var(--ease)}
.sec-link:hover{color:var(--teal);border-color:var(--teal)}

/* 价值条 */
.value-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.vs-item{padding:24px 22px;border-left:1px solid var(--line)}
.vs-item:first-child{border-left:none}
.vs-num{font-size:13px;font-weight:700;color:var(--teal);letter-spacing:.06em}
.vs-label{font-size:17px;font-weight:700;margin:8px 0 6px}
.vs-text{font-size:14px;line-height:1.65;color:var(--muted);margin:0}

/* 时间轴 */
.timeline{position:relative;margin-top:6px}
.timeline::before{content:"";position:absolute;left:19px;top:18px;bottom:18px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-left:64px;margin-bottom:18px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:12px;top:30px;width:16px;height:16px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 3px var(--paper),0 0 0 4px var(--line);
}
.tl-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(14,17,16,.28);border-color:rgba(198,242,78,.65)}
.tl-item:nth-child(odd) .tl-card{margin-left:36px}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-step{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--teal);color:#fff;font-size:12px;letter-spacing:.04em;font-weight:600;
}
.tl-card h3{font-size:20px;font-weight:600;margin:0}
.tl-card p{font-size:15px;line-height:1.75;color:#3A403C;margin:0}
.tl-points{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:8px}
.tl-points li{position:relative;padding-left:18px;font-size:14px;color:var(--muted);line-height:1.7}
.tl-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;background:var(--accent)}

/* 验证方式卡片 */
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.method-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.method-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(14,17,16,.28);border-color:rgba(198,242,78,.65)}
.method-card img{width:100%;height:170px;object-fit:cover}
.method-body{padding:22px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-teal{background:var(--teal);color:#fff}
.badge-outline{border:1px solid rgba(198,242,78,.85);color:var(--ink);background:rgba(198,242,78,.16)}
.method-body h3{font-size:19px;font-weight:600;margin:12px 0 8px}
.method-body p{font-size:14px;line-height:1.7;color:var(--muted);margin:0 0 14px}
.kv-row{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:9px 0;border-top:1px solid var(--line)}
.kv-row span:first-child{color:var(--muted)}
.kv-row span:last-child{font-weight:600}

/* 提示处理 */
.issue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.issue-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.issue-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(14,17,16,.28);border-color:rgba(198,242,78,.65)}
.issue-card.dark{background:var(--ink);border-color:var(--line-dark);color:#fff}
.issue-card.dark .issue-text{color:rgba(255,255,255,.72)}
.issue-card.dark .issue-meta{color:rgba(255,255,255,.5);border-color:var(--line-dark)}
.issue-icon{
  width:40px;height:40px;border-radius:var(--r-input);border:1px solid var(--line);
  display:grid;place-items:center;margin-bottom:16px;
}
.issue-card.dark .issue-icon{border-color:var(--line-dark);background:var(--ink-2)}
.issue-icon svg{width:22px;height:22px;fill:none;stroke:var(--teal);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.issue-card.dark .issue-icon svg{stroke:var(--accent)}
.issue-card h3{font-size:18px;font-weight:600;margin:0 0 8px}
.issue-text{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 14px}
.issue-meta{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;display:flex;justify-content:space-between;gap:12px}

/* 习惯清单 */
.habit-list{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.habit-row{display:flex;gap:18px;padding:20px 24px;border-top:1px solid var(--line);align-items:flex-start}
.habit-row:first-child{border-top:none}
.habit-row:hover{background:#FBFBF8}
.habit-idx{font-size:13px;font-weight:700;color:var(--teal);min-width:28px;padding-top:2px}
.habit-row h3{font-size:16px;font-weight:600;margin:0 0 4px}
.habit-row p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}

/* FAQ */
.faq-wrap{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 24px;max-width:900px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:none}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 0 20px 0;font-size:17px;font-weight:600;position:relative;
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:-24px;top:14px;bottom:14px;width:2px;background:transparent;transition:background .24s var(--ease);
}
.faq-item[open] summary::before{background:var(--accent)}
.faq-item summary:hover{color:var(--teal)}
.faq-item summary .faq-arrow{
  margin-left:auto;width:22px;height:22px;flex-shrink:0;
  fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .26s var(--ease),stroke .24s var(--ease);
}
.faq-item[open] summary .faq-arrow{transform:rotate(180deg);stroke:var(--teal)}
.faq-answer{font-size:15px;line-height:1.8;color:var(--muted);padding:0 0 20px;max-width:760px}

/* CTA 深墨卡 */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink);border:1px solid var(--line-dark);border-radius:var(--r-lg);
  padding:clamp(28px,4vw,46px);
  display:grid;grid-template-columns:1.35fr .9fr;gap:28px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),transparent 68%);
}
.cta-card h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:#fff;margin:0 0 12px;line-height:1.25}
.cta-card p{font-size:15px;line-height:1.75;color:rgba(255,255,255,.72);margin:0 0 22px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}
.cta-side{display:grid;gap:10px;position:relative;z-index:2}
.cta-mini{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border:1px solid var(--line-dark);border-radius:var(--r-sm);
  background:var(--ink-2);color:#fff;font-size:14px;
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.cta-mini:hover{border-color:rgba(198,242,78,.7);transform:translateX(3px)}
.cta-mini svg{width:18px;height:18px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* 相关入口 */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.rel-card{
  display:block;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px;transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(198,242,78,.7);box-shadow:0 14px 30px -18px rgba(14,17,16,.28)}
.rel-card .rel-idx{font-size:12px;font-weight:700;color:var(--teal);letter-spacing:.06em}
.rel-card strong{display:block;font-size:16px;font-weight:700;margin:10px 0 6px}
.rel-card span.rel-text{font-size:13px;color:var(--muted);line-height:1.65;display:block}
.rel-card.current{border-color:rgba(198,242,78,.85);background:rgba(198,242,78,.12)}

/* 图文小卡 */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.split img{border-radius:var(--r-lg);border:1px solid var(--line);width:100%;height:320px;object-fit:cover}
.split p{font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 14px}

/* ============ 页脚 ============ */
.site-footer{margin-top:clamp(64px,8vw,110px);background:var(--ink);color:#fff;padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{font-size:16px;font-weight:700}
.footer-about{font-size:13px;line-height:1.75;color:rgba(255,255,255,.6);margin:0;max-width:300px}
.footer-title{font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.5);margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);transition:color .24s var(--ease)}
.footer-links a:hover{color:var(--accent)}
.footer-meta{display:grid;gap:10px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* 动效 */
body.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
body.js .reveal.in{opacity:1;transform:none}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ============ 响应式 ============ */
@media(max-width:1180px){
  .nav-chip{padding:0 10px;font-size:13px}
  .brand-text em{display:none}
}
@media(max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-drawer{display:block}
  .split{grid-template-columns:1fr}
  .split img{height:250px}
  .cta-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media(min-width:1024px){
  .nav-drawer{display:none!important}
}
@media(max-width:900px){
  .value-strip{grid-template-columns:1fr 1fr}
  .vs-item{border-top:1px solid var(--line)}
  .vs-item:nth-child(1),.vs-item:nth-child(2){border-top:none}
  .vs-item:nth-child(odd){border-left:none}
  .method-grid{grid-template-columns:1fr}
  .issue-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr 1fr}
  .tl-item:nth-child(odd) .tl-card{margin-left:0}
}
@media(max-width:640px){
  .container{padding:0 18px}
  .site-header{top:10px}
  .nav-panel{padding:10px 12px;gap:10px;border-radius:18px;min-height:66px}
  .brand-text strong{font-size:14px}
  .drawer-grid{grid-template-columns:1fr}
  .hero-title{font-size:clamp(26px,7vw,36px)}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .value-strip{grid-template-columns:1fr}
  .vs-item{border-left:none}
  .vs-item:nth-child(2){border-top:1px solid var(--line)}
  .timeline::before{left:9px}
  .tl-item{padding-left:34px}
  .tl-item::before{left:2px;top:26px;width:14px;height:14px}
  .tl-card{padding:20px}
  .rel-grid{grid-template-columns:1fr}
  .faq-wrap{padding:6px 18px}
  .faq-item summary{font-size:16px}
  .habit-row{flex-direction:column;gap:8px;padding:18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  body.js .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --paper:#F6F6F3;
  --paper-2:#FFFFFF;
  --ink:#0E1110;
  --ink-2:#161A18;
  --accent:#C6F24E;
  --teal:#1F6F5C;
  --muted:#6B736E;
  --line:#E2E3DD;
  --line-dark:#2A302E;
  --amber:#E0A73B;
  --r-nav:22px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-1:0 1px 2px rgba(14,17,16,.04);
  --shadow-2:0 14px 30px -18px rgba(14,17,16,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
.site-body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-lg);}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:0;}
p{margin:0;}
svg{display:block;}
::selection{background:var(--accent);color:var(--ink);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:12px;
  z-index:60;
  padding:0;
}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:76px;
  padding:12px 14px;
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:var(--r-nav);
  box-shadow:0 18px 40px -30px rgba(14,17,16,.7);
}
.nav-panel::before{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:var(--r-sm);
  background:var(--accent);
  color:var(--ink);
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-text strong{
  color:#FFFFFF;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-text em{
  font-style:normal;
  font-size:11px;
  color:#8E9792;
  letter-spacing:.02em;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.nav-links{display:flex;align-items:center;gap:8px;}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 13px;
  border-radius:var(--r-md);
  color:#B9C0BB;
  font-size:14px;
  line-height:1;
  white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.nav-chip svg{
  width:18px;height:18px;
  fill:none;stroke:currentColor;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
  transition:stroke .22s var(--ease);
}
.nav-chip:hover{background:var(--ink-2);color:#FFFFFF;}
.nav-chip:hover svg{stroke:var(--accent);}
.nav-chip.active{
  background:rgba(198,242,78,.12);
  color:#FFFFFF;
  border-color:rgba(198,242,78,.24);
  box-shadow:inset 0 -2px 0 0 var(--accent);
}
.nav-chip.active svg{stroke:var(--accent);}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-dark);
  background:transparent;
  color:#FFFFFF;
  cursor:pointer;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--ink-2);border-color:rgba(198,242,78,.4);}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-accent{background:var(--accent);color:var(--ink);}
.btn-accent:hover{background:#D2F86A;transform:translateY(-1px);box-shadow:0 12px 24px -16px rgba(198,242,78,.9);}
.btn-dark{background:var(--ink);color:#FFFFFF;border-color:var(--ink);}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-1px);}
.btn-line{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-line:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn-line-light{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.28);}
.btn-line-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-ghost{
  height:auto;padding:0;border:none;background:transparent;
  color:var(--ink);font-weight:600;border-bottom:2px solid var(--accent);
  border-radius:0;
}
.btn-ghost:hover{transform:translateY(-1px);}
.btn:focus-visible,.nav-chip:focus-visible,.nav-toggle:focus-visible,a:focus-visible,summary:focus-visible,.faq-trigger:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.btn[disabled]{opacity:.4;filter:saturate(.4);cursor:not-allowed;}

/* ---------- common block ---------- */
.section{padding:clamp(56px,7vw,96px) 0;}
.section-tight{padding:clamp(40px,5vw,64px) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:clamp(24px,2.8vw,34px);
  font-weight:700;
  line-height:1.2;
}
.section-title::before{
  content:"";
  width:6px;height:26px;
  background:var(--accent);
  border-radius:2px;
  flex-shrink:0;
}
.section-desc{margin-top:12px;color:var(--muted);font-size:15px;max-width:660px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--teal);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:1px;}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  font-weight:600;
  white-space:nowrap;
}
.badge-teal{background:var(--teal);color:#FFFFFF;}
.badge-accent{background:transparent;border:1px solid var(--accent);color:var(--ink);}
.meta-text{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}

/* ---------- page hero ---------- */
.page-hero{padding-top:clamp(32px,4vw,48px);}
.hero-card{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:32px;
  align-items:center;
  min-height:260px;
  padding:32px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background-color:var(--paper-2);
  background-image:linear-gradient(rgba(14,17,16,.14),rgba(14,17,16,.14)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.hero-copy{
  padding:28px 30px;
  background:rgba(246,246,243,.95);
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.hero-copy h1{
  margin-top:14px;
  font-size:clamp(28px,3.6vw,42px);
  font-weight:800;
  line-height:1.16;
}
.hero-copy h1 mark{
  background:transparent;
  color:var(--ink);
  box-shadow:inset 0 -10px 0 rgba(198,242,78,.65);
}
.hero-copy p{margin-top:16px;color:var(--muted);font-size:15px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumbs a:hover{color:var(--ink);}
.crumbs span.sep{color:#B7BDB8;}

/* ---------- kpi strip ---------- */
.kpi-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper-2);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.kpi{
  padding:22px 24px;
  border-right:1px solid var(--line);
  transition:background-color .22s var(--ease);
}
.kpi:last-child{border-right:none;}
.kpi:hover{background:#FBFBF8;}
.kpi-num{
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--teal);
  font-variant-numeric:tabular-nums;
}
.kpi-title{margin-top:8px;font-size:16px;font-weight:700;}
.kpi-desc{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- faq layout ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:28px;
  align-items:start;
}
.faq-card{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper-2);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 24px;
  border-bottom:1px solid var(--line);
}
.faq-card-head h2{font-size:20px;font-weight:700;}
.faq-list{border-top:0;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-trigger{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px;
  background:transparent;
  border:none;
  text-align:left;
  cursor:pointer;
  transition:background-color .2s var(--ease);
}
.faq-trigger:hover{background:#FBFBF8;}
.faq-num{
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
  flex-shrink:0;
}
.faq-text{flex:1;font-size:16px;font-weight:600;line-height:1.5;}
.faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:50%;
  transition:transform .28s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.faq-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.faq-panel{padding:0 24px 22px 60px;font-size:15px;line-height:1.8;color:#3C423F;}
.faq-item.active{box-shadow:inset 2px 0 0 0 var(--accent);}
.faq-item.active .faq-icon{transform:rotate(180deg);background:var(--accent);border-color:var(--accent);}
.faq-item.active .faq-trigger{background:#FBFBF8;}
.faq-panel[hidden]{display:none;}
.faq-empty{
  padding:36px 24px;
  text-align:center;
  color:var(--muted);
  font-size:14px;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  margin:24px;
}
.faq-empty svg{width:44px;height:44px;margin:0 auto 12px;fill:none;stroke:#B7BDB8;stroke-width:1.4;stroke-linecap:round;}
.faq-empty a{color:var(--ink);border-bottom:2px solid var(--accent);}

/* ---------- side panel ---------- */
.side-panel{position:sticky;top:110px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper-2);
  box-shadow:var(--shadow-1);
}
.side-card.dark{
  background:var(--ink);
  border-color:var(--line-dark);
  color:#FFFFFF;
}
.side-card.dark .side-title{color:#FFFFFF;}
.side-card.dark .kv-row{border-color:var(--line-dark);}
.side-card.dark .kv-key{color:#8E9792;}
.side-card.dark .kv-val{color:var(--accent);}
.side-title{font-size:15px;font-weight:700;margin-bottom:14px;}
.kv-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.kv-row:last-of-type{border-bottom:none;}
.kv-key{color:var(--muted);}
.kv-val{font-weight:600;font-variant-numeric:tabular-nums;text-align:right;}
.quick-search label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;}
.search-row{
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--paper);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-row:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px rgba(198,242,78,.55);}
.search-row svg{width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:1.7;stroke-linecap:round;flex-shrink:0;}
.search-row input{
  flex:1;
  height:100%;
  border:none;
  background:transparent;
  font-size:15px;
  color:var(--ink);
  outline:none;
  min-width:0;
}
.search-row input::placeholder{color:#9AA19C;}
.search-hint{margin-top:10px;font-size:12px;color:var(--muted);}
.side-cta{margin-top:18px;width:100%;}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.scene-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper-2);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(198,242,78,.6);}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.scene-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene-body h3{font-size:17px;font-weight:700;line-height:1.45;}
.scene-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.scene-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.scene-foot strong{color:var(--ink);font-weight:600;}

/* ---------- timeline ---------- */
.timeline-wrap{
  padding:32px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper-2);
  box-shadow:var(--shadow-1);
}
.timeline{position:relative;padding-left:30px;}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:10px;bottom:10px;
  width:2px;
  background:var(--line);
}
.step{position:relative;padding-bottom:18px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:-30px;top:24px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--accent);
  border:2px solid var(--paper);
  box-shadow:0 0 0 1px var(--line);
}
.step-card{
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:#FBFBF8;
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.step-card:hover{border-color:rgba(198,242,78,.7);transform:translateX(2px);}
.step:nth-child(odd) .step-card{margin-left:16px;}
.step-no{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--teal);font-variant-numeric:tabular-nums;}
.step-card h3{margin-top:8px;font-size:17px;font-weight:700;}
.step-card p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:start;}
.review-card{
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper-2);
  box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.review-card:nth-child(2){margin-top:26px;}
.review-card.dark{background:var(--ink);border-color:var(--line-dark);color:#FFFFFF;}
.review-card.dark .review-text{color:#D7DCD9;}
.review-card.dark .review-date{color:#8E9792;}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;color:var(--ink);
  flex-shrink:0;
}
.avatar-a{background:var(--accent);}
.avatar-b{background:#7FBFA8;color:#0E1110;}
.avatar-c{background:#C8CFCA;}
.review-name{font-size:14px;font-weight:700;}
.review-date{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.stars{margin-left:auto;color:var(--amber);font-size:13px;letter-spacing:.08em;}
.review-text{margin-top:14px;font-size:14px;line-height:1.8;color:#3C423F;}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.related-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--paper-2);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.related-card:hover{border-color:rgba(198,242,78,.7);transform:translateY(-4px);box-shadow:var(--shadow-2);}
.related-card strong{font-size:15px;font-weight:700;}
.related-card span{font-size:13px;color:var(--muted);line-height:1.65;}
.related-card em{
  margin-top:auto;
  font-style:normal;
  font-size:13px;
  font-weight:600;
  color:var(--teal);
  display:inline-flex;align-items:center;gap:6px;
}
.related-card.is-current{border-color:var(--accent);box-shadow:inset 0 0 0 1px rgba(198,242,78,.5);}

/* ---------- cta ---------- */
.cta-card{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:28px;
  align-items:center;
  padding:clamp(28px,4vw,48px);
  border-radius:var(--r-lg);
  border:1px solid var(--line-dark);
  background:var(--ink);
  color:#FFFFFF;
  overflow:hidden;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),transparent 68%);
  pointer-events:none;
}
.cta-card h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.22;}
.cta-card p{margin-top:14px;color:#B9C0BB;font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-list{display:flex;flex-direction:column;gap:12px;}
.cta-item{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
  font-size:14px;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.cta-item:hover{border-color:var(--accent);background:rgba(198,242,78,.06);}
.cta-item svg{width:18px;height:18px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
  flex-direction:column;
  gap:20px;
  padding:20px;
  background:var(--ink);
  color:#FFFFFF;
  overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.drawer-close{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);
  border-radius:var(--r-sm);
  background:transparent;
  color:#FFFFFF;
  cursor:pointer;
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.drawer-chip{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:16px;
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  color:#D7DCD9;
  font-size:14px;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.drawer-chip svg{width:20px;height:20px;fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.drawer-chip.active{background:rgba(198,242,78,.12);border-color:rgba(198,242,78,.4);color:#FFFFFF;}
.drawer-cta{margin-top:auto;width:100%;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(48px,6vw,88px);
  background:var(--ink);
  color:#B9C0BB;
  padding:clamp(44px,5vw,72px) 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand strong{color:#FFFFFF;font-size:15px;}
.footer-about{font-size:13px;line-height:1.8;color:#8E9792;max-width:300px;}
.footer-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:#FFFFFF;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9C0BB;transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--accent);}
.footer-meta{display:flex;flex-direction:column;gap:10px;font-size:13px;color:#8E9792;font-variant-numeric:tabular-nums;}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:#7C847F;
}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media(max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .hero-card{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;}
  .side-panel{position:static;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .review-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .review-card:nth-child(2){margin-top:0;}
  .kpi-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .kpi:nth-child(2){border-right:none;}
  .kpi:nth-child(1),.kpi:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{grid-template-columns:1fr;}
}
@media(max-width:639px){
  .hero-copy{padding:22px;}
  .scene-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .review-grid{grid-template-columns:1fr;}
  .kpi-strip{grid-template-columns:1fr;}
  .kpi{border-right:none;border-bottom:1px solid var(--line);}
  .kpi:last-child{border-bottom:none;}
  .step:nth-child(odd) .step-card{margin-left:0;}
  .faq-trigger{padding:18px 18px;gap:10px;}
  .faq-panel{padding:0 18px 20px 46px;}
  .faq-card-head{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .timeline-wrap{padding:22px;}
  .drawer-grid{grid-template-columns:1fr;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}