/* roulang page: index */
:root{
  --ink:#0B1410;
  --ink-2:#14170F;
  --lime:#C4F53C;
  --orange:#FF6A2B;
  --bg:#F7F6F2;
  --white:#FFFFFF;
  --bg-soft:#EEF0E9;
  --text:#14170F;
  --text-2:#5A6157;
  --text-3:#8A9086;
  --border:#E4E3DC;
  --radius-card:16px;
  --radius-block:20px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(11,20,16,.06);
  --shadow-2:0 12px 32px rgba(11,20,16,.10);
  --shadow-nav:0 2px 12px rgba(11,20,16,.07);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--ink);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;max-width:100%;}
@media(min-width:768px){.container{max-width:720px;}}
@media(min-width:992px){.container{max-width:960px;}}
@media(min-width:1200px){.container{max-width:1140px;}}
@media(min-width:1400px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--white);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand .brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);
  display:grid;place-items:center;color:var(--lime);font-size:16px;flex:0 0 auto;
}
.main-nav{display:none;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.01em;color:var(--text-2);font-weight:500;padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);
  transition:width .22s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--ink);font-weight:700;}
.main-nav a.active::after{width:100%;}
.header-tools{display:none;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;background:var(--bg-soft);border:1px solid transparent;
  border-radius:999px;padding:0 16px;height:42px;width:180px;transition:width .28s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.search-box i{color:var(--text-3);font-size:14px;}
.search-box input{border:0;background:transparent;width:100%;font-size:14px;outline:none;}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{width:240px;border-color:var(--lime);background:var(--white);box-shadow:0 0 0 3px rgba(196,245,60,.28);}
.btn-lime{
  display:inline-flex;align-items:center;gap:8px;background:var(--lime);color:var(--ink);
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:700;border:1px solid var(--lime);
  min-height:44px;transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-lime:hover{background:#b6e82c;border-color:#b6e82c;color:var(--ink);box-shadow:0 8px 20px rgba(196,245,60,.35);}
.btn-lime i{transition:transform .18s var(--ease);}
.btn-lime:hover i{transform:translateX(4px);}
.btn-outline-ink{
  display:inline-flex;align-items:center;gap:8px;background:var(--white);color:var(--ink);
  border:1px solid var(--ink);border-radius:999px;padding:11px 22px;font-size:15px;font-weight:700;min-height:44px;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-outline-ink:hover{background:var(--ink);color:#fff;}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:700;min-height:44px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border:0;background:transparent;display:grid;place-items:center;gap:5px;
  cursor:pointer;border-radius:10px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);transition:transform .25s var(--ease),opacity .2s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;background:var(--white);border-top:1px solid var(--border);padding:8px 20px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{display:block;line-height:48px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--border);}
.mobile-drawer a.active{color:var(--ink);font-weight:700;border-bottom-color:var(--lime);}
.mobile-drawer .btn-lime{width:100%;justify-content:center;margin-top:16px;}
@media(min-width:992px){
  .main-nav{display:flex;}
  .header-tools{display:flex;}
  .nav-toggle{display:none;}
  .mobile-drawer{display:none !important;}
}

/* ---------- common ---------- */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:80px 0;}}
@media(min-width:992px){.section{padding:104px 0;}}
.section-soft{background:var(--bg-soft);}
.section-dark{background:var(--ink);color:#E8EBE4;}
.section-dark h2,.section-dark h3{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--text-2);margin-bottom:14px;
}
.eyebrow::before{content:"";width:3px;height:18px;background:var(--lime);border-radius:2px;}
h1{font-size:clamp(2.1rem,5vw,3.6rem);font-weight:800;line-height:1.15;}
h2{font-size:clamp(1.55rem,3vw,2.3rem);font-weight:700;line-height:1.25;}
h3{font-size:1.28rem;font-weight:600;line-height:1.4;}
.lead{font-size:17px;color:var(--text-2);max-width:70ch;}
.section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:40px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:3px;
}
.text-link i{transition:transform .18s var(--ease);}
.text-link:hover i{transform:translateX(4px);}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;
  border:1px solid var(--lime);color:var(--ink);background:rgba(196,245,60,.14);
}
.badge-orange{background:var(--orange);border-color:var(--orange);color:#fff;}
.divider-line{height:1px;background:var(--border);border:0;margin:0;}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:62vh;display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(11,20,16,.86) 0%,rgba(11,20,16,.62) 48%,rgba(11,20,16,.22) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
@media(min-width:992px){.hero{min-height:84vh;}}
.hero-inner{padding:72px 0 64px;}
@media(min-width:992px){.hero-inner{padding:96px 0 88px;}}
.hero h1{color:#fff;max-width:19ch;}
.hero .hero-sub{font-size:clamp(1rem,1.6vw,1.25rem);color:rgba(255,255,255,.82);max-width:52ch;margin:20px 0 32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:52px;padding-top:28px;border-top:1px solid rgba(255,255,255,.18);}
.hero-stat .num{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;color:var(--lime);line-height:1;}
.hero-stat .lab{font-size:13px;color:rgba(255,255,255,.7);margin-top:10px;}

/* ---------- value strip ---------- */
.value-strip{padding:34px 0;background:var(--white);border-bottom:1px solid var(--border);}
.value-strip ul{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px;}
.value-strip li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--text-2);}
.value-strip li i{color:var(--ink);font-size:14px;}
.value-strip li+li{border-left:0;}
@media(min-width:992px){
  .value-strip ul{grid-template-columns:repeat(4,1fr);gap:0;}
  .value-strip li{padding-left:24px;border-left:1px solid var(--border);}
  .value-strip li:first-child{padding-left:0;border-left:0;}
}

/* ---------- feature magnet ---------- */
.magnet-main{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-block);
  overflow:hidden;height:100%;display:flex;flex-direction:column;transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.magnet-main:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.magnet-main img{aspect-ratio:16/9;object-fit:cover;width:100%;}
.magnet-main .magnet-body{padding:28px 30px 32px;}
.magnet-main h3{font-size:1.45rem;margin-bottom:12px;}
.magnet-main p{color:var(--text-2);font-size:15.5px;}
.magnet-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);margin-bottom:8px;}
.magnet-list i{color:var(--ink);margin-top:6px;font-size:12px;}
.magnet-small{
  background:transparent;border-top:1px solid var(--border);padding:22px 0 22px 0;
}
.magnet-small:first-child{border-top:0;padding-top:0;}
.magnet-small .idx{font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.1em;margin-bottom:6px;}
.magnet-small h3{font-size:1.12rem;margin-bottom:8px;}
.magnet-small p{font-size:14.5px;color:var(--text-2);margin-bottom:10px;}
.magnet-small a{font-size:14px;font-weight:700;color:var(--ink);border-bottom:1px solid var(--border);}
.magnet-small a:hover{border-bottom-color:var(--lime);}

/* ---------- scenes ---------- */
.scene-row{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:34px 0;border-top:1px solid var(--border);}
.scene-row:first-of-type{border-top:0;}
.scene-idx{font-size:clamp(2rem,4vw,3.2rem);font-weight:800;color:#D8DAD1;line-height:1;letter-spacing:-.04em;}
.scene-row img{border-radius:var(--radius-block);aspect-ratio:16/10;object-fit:cover;width:100%;}
.scene-row h3{margin:10px 0 12px;}
.scene-row p{color:var(--text-2);font-size:15.5px;}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.scene-tags span{font-size:12.5px;color:var(--text-2);background:var(--white);border:1px solid var(--border);border-radius:999px;padding:5px 12px;}
@media(min-width:768px){
  .scene-row{grid-template-columns:5fr 7fr;gap:48px;}
  .scene-row.reverse .scene-media{order:2;}
  .scene-row.reverse .scene-text{order:1;}
}

/* ---------- cases ---------- */
.case-main{
  position:relative;border-radius:var(--radius-block);overflow:hidden;min-height:340px;
  display:flex;align-items:flex-end;color:#fff;background:var(--ink);
}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;}
.case-main .case-body{position:relative;padding:32px;}
.case-main h3{color:#fff;font-size:1.35rem;margin:12px 0 10px;}
.case-main p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:16px;}
.case-main .result{font-size:clamp(1.7rem,3vw,2.2rem);font-weight:800;color:var(--lime);line-height:1;}
.case-main .result-label{font-size:12.5px;color:rgba(255,255,255,.7);margin-bottom:8px;}
.case-small{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-card);padding:26px;
  height:100%;transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.case-small:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.case-small img{border-radius:12px;aspect-ratio:16/10;object-fit:cover;margin-bottom:18px;}
.case-small h3{font-size:1.1rem;margin-bottom:10px;}
.case-small p{font-size:14.5px;color:var(--text-2);}
.case-small .case-num{font-size:1.6rem;font-weight:800;color:var(--ink);line-height:1;margin-bottom:6px;}
.case-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px;padding-top:34px;border-top:1px solid var(--border);}
.case-strip .item .n{font-size:clamp(1.7rem,3vw,2.2rem);font-weight:800;color:var(--ink);}
.case-strip .item .t{font-size:13.5px;color:var(--text-3);margin-top:6px;}
@media(min-width:992px){.case-strip{grid-template-columns:repeat(4,1fr);}}

/* ---------- pricing ---------- */
.price-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-block);
  padding:30px 28px 32px;height:100%;display:flex;flex-direction:column;
  transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.price-card:hover{box-shadow:var(--shadow-2);}
.price-card.recommended{
  border:1.5px solid var(--lime);transform:translateY(-12px) scale(1.06);
  box-shadow:0 18px 44px rgba(11,20,16,.12);position:relative;z-index:2;
}
.price-card.recommended:hover{box-shadow:0 22px 52px rgba(11,20,16,.16);}
.price-tag{position:absolute;top:-14px;left:28px;background:var(--orange);color:#fff;font-size:12.5px;font-weight:700;border-radius:999px;padding:6px 14px;}
.price-card .tier{font-size:14px;font-weight:700;color:var(--text-3);letter-spacing:.06em;}
.price-card h3{font-size:1.2rem;margin:10px 0 16px;}
.price-num{font-size:clamp(1.9rem,3.2vw,2.5rem);font-weight:800;color:var(--ink);line-height:1.1;}
.price-num small{font-size:14px;font-weight:500;color:var(--text-3);}
.price-desc{font-size:14.5px;color:var(--text-2);margin:14px 0 20px;}
.price-feature{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);margin-bottom:10px;}
.price-feature i{color:var(--ink);margin-top:6px;font-size:12px;}
.price-card .btn-lime,.price-card .btn-outline-ink{width:100%;justify-content:center;margin-top:auto;}
.price-note{
  margin-top:36px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:18px 24px;font-size:14.5px;color:var(--text-2);display:flex;flex-wrap:wrap;gap:10px 28px;
}
.price-note span{display:inline-flex;align-items:center;gap:8px;}
.price-note i{color:var(--ink);font-size:13px;}

/* ---------- latest / cms ---------- */
.post-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.post-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.post-thumb{overflow:hidden;aspect-ratio:16/10;background:var(--bg-soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:1.05rem;line-height:1.5;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--ink);}
.post-body .excerpt{font-size:14.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.post-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);margin-top:auto;padding-top:14px;border-top:1px solid var(--border);}
.post-meta .go{font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.post-card.featured .post-thumb{aspect-ratio:21/9;}
.post-card.featured .post-body h3{font-size:1.3rem;-webkit-line-clamp:2;}
.empty-state{
  background:var(--white);border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;color:var(--text-2);
}
.empty-state i{font-size:30px;color:var(--text-3);display:block;margin-bottom:14px;}
.empty-state .btn-outline-ink{margin-top:20px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-wrap .accordion-item{background:transparent;border:0;border-top:1px solid var(--border);}
.faq-wrap .accordion-item:last-child{border-bottom:1px solid var(--border);}
.faq-wrap .accordion-button{
  background:transparent;box-shadow:none;font-size:1.02rem;font-weight:600;color:var(--ink);
  padding:22px 44px 22px 0;position:relative;border-radius:0;
}
.faq-wrap .accordion-button::before{
  content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);width:3px;height:0;
  background:var(--lime);border-radius:2px;transition:height .25s var(--ease);
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.faq-wrap .accordion-button:not(.collapsed)::before{height:22px;}
.faq-wrap .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  color:var(--text-2);width:auto;height:auto;transition:transform .25s var(--ease);margin-left:auto;
}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ink);}
.faq-wrap .accordion-button:focus{box-shadow:none;}
.faq-wrap .accordion-body{padding:0 60px 24px 0;color:var(--text-2);font-size:15.5px;}

/* ---------- cta ---------- */
.cta-block{background:var(--ink);border-radius:var(--radius-block);padding:44px 28px;color:#E8EBE4;}
@media(min-width:992px){.cta-block{padding:60px 56px;}}
.cta-block h2{color:#fff;font-size:clamp(1.6rem,3vw,2.3rem);}
.cta-block .cta-copy{color:rgba(232,235,228,.78);font-size:15.5px;margin:16px 0 26px;max-width:44ch;}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:rgba(232,235,228,.82);margin-bottom:8px;}
.cta-points i{color:var(--lime);margin-top:6px;font-size:12px;}
.form-panel{background:var(--white);border-radius:var(--radius-card);padding:26px;color:var(--text);}
@media(min-width:992px){.form-panel{padding:30px;}}
.form-panel label{font-size:13.5px;font-weight:600;color:var(--text-2);margin-bottom:8px;display:block;}
.form-panel .form-control{
  background:var(--bg-soft);border:1px solid transparent;border-radius:var(--radius-input);
  padding:12px 14px;font-size:15px;box-shadow:none;transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.form-panel .form-control::placeholder{color:var(--text-3);}
.form-panel .form-control:focus{
  background:var(--white);border-color:var(--lime);box-shadow:0 0 0 3px rgba(196,245,60,.3);
}
.form-panel .form-control.is-invalid{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,43,.16);}
.form-hint{font-size:12.5px;color:var(--text-3);margin-top:12px;}
.form-panel .btn-lime{width:100%;justify-content:center;margin-top:8px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#E8EBE4;border-top:1px solid var(--lime);padding:56px 0 0;}
.site-footer .f-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px;}
.site-footer .f-brand .brand-mark{width:32px;height:32px;border-radius:9px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-size:15px;}
.site-footer p{color:#8A9086;font-size:14.5px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.site-footer li{margin-bottom:10px;}
.site-footer li a,.site-footer .f-link{color:#8A9086;font-size:14.5px;}
.site-footer li a:hover,.site-footer .f-link:hover{color:var(--lime);}
.f-keyword-bar{
  margin-top:44px;padding:18px 0;border-top:1px solid rgba(232,235,228,.12);
  font-size:13.5px;color:#8A9086;display:flex;flex-wrap:wrap;gap:8px 20px;
}
.f-keyword-bar span{color:#C9CFC2;}
.f-bottom{
  border-top:1px solid rgba(232,235,228,.12);padding:20px 0;font-size:13px;color:#8A9086;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
}
.f-bottom a{color:#8A9086;}
.f-bottom a:hover{color:var(--lime);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0B1410;
  --lime:#C4F53C;
  --orange:#FF6A2B;
  --bg:#F7F6F2;
  --white:#FFFFFF;
  --bg-soft:#EEF0E9;
  --text:#14170F;
  --text-2:#5A6157;
  --text-3:#8A9086;
  --line:#E4E3DC;
  --body-copy:#2b3129;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(11,20,16,.06);
  --shadow-2:0 12px 32px rgba(11,20,16,.10);
  --shadow-nav:0 2px 12px rgba(11,20,16,.07);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:inherit;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 20px;}
@media (max-width:1399.98px){.container{max-width:1140px;padding:0 20px;}}
@media (max-width:1199.98px){.container{max-width:960px;padding:0 20px;}}
@media (max-width:991.98px){.container{max-width:720px;padding:0 20px;}}
@media (max-width:767.98px){.container{max-width:100%;padding:0 20px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--lime);
  display:grid;place-items:center;font-size:15px;flex:0 0 auto;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.main-nav a{
  position:relative;padding:8px 12px;font-size:15px;letter-spacing:.01em;
  color:var(--text-2);font-weight:500;border-radius:8px;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--lime);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:200px;padding:0 14px;
  background:var(--bg-soft);border:1px solid transparent;border-radius:999px;
  transition:width .24s var(--ease),border-color .18s,background .18s,box-shadow .18s;
}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{width:248px;background:var(--white);border-color:var(--lime);box-shadow:0 0 0 3px rgba(196,245,60,.35);}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  background:var(--lime);color:var(--ink);font-weight:700;font-size:15px;
  border:1px solid var(--lime);cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-lime:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);}
.btn-lime i{transition:transform .18s var(--ease);}
.btn-lime:hover i{transform:translateX(4px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  background:transparent;color:#fff;font-weight:700;font-size:15px;
  border:1px solid rgba(255,255,255,.45);cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--ink);transition:transform .24s var(--ease),opacity .18s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{display:none;}

@media (max-width:991.98px){
  .header-inner{height:64px;gap:12px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .header-right .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{
    display:block;max-height:0;overflow:hidden;
    transition:max-height .32s var(--ease);
    border-top:1px solid transparent;
  }
  .mobile-drawer.open{max-height:460px;border-top-color:var(--line);padding:10px 0 18px;}
  .mobile-drawer a.drawer-link{
    display:block;line-height:48px;font-size:16px;color:var(--text);font-weight:500;
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a.drawer-link.active{color:var(--ink);font-weight:700;}
  .mobile-drawer .drawer-cta{margin-top:16px;width:100%;}
}

/* ---------- 文章顶部横幅 ---------- */
.article-banner{
  position:relative;color:#fff;padding:56px 0 96px;
  background-image:linear-gradient(0deg,rgba(11,20,16,.88),rgba(11,20,16,.70)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center center;
}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:22px;}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:var(--lime);}
.crumbs .sep{color:rgba(255,255,255,.32);}
.crumbs .current{color:rgba(255,255,255,.58);max-width:46ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.article-title{
  font-size:clamp(1.85rem,4.2vw,3rem);font-weight:800;line-height:1.22;
  letter-spacing:-.02em;color:#fff;margin:0 0 20px;max-width:22ch;word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13.5px;color:rgba(255,255,255,.72);}
.article-meta i{margin-right:6px;color:var(--lime);}
.pill-lime{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(196,245,60,.14);border:1px solid var(--lime);color:var(--lime);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
@media (max-width:767.98px){
  .article-banner{padding:36px 0 76px;}
  .article-title{max-width:100%;}
}

/* ---------- 正文区 ---------- */
.article-section{padding:0 0 96px;}
.article-layout{max-width:900px;margin:0 auto;}
.article-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(24px,4.4vw,56px);
  margin-top:-64px;position:relative;z-index:2;box-shadow:var(--shadow-1);
}
@media (max-width:767.98px){
  .article-card{margin-top:-40px;border-radius:16px;}
  .article-section{padding-bottom:64px;}
}
.article-body{max-width:820px;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;font-size:17px;line-height:1.9;color:var(--body-copy);}
.article-body h2{
  position:relative;font-size:clamp(1.28rem,2.4vw,1.6rem);font-weight:700;line-height:1.45;
  color:var(--ink);margin:2.1em 0 .85em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;border-radius:2px;background:var(--lime);
}
.article-body h3{font-size:1.18rem;font-weight:600;color:var(--ink);margin:1.7em 0 .7em;line-height:1.5;}
.article-body h4{font-size:1.04rem;font-weight:600;color:var(--ink);margin:1.5em 0 .6em;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.4em;}
.article-body li{margin-bottom:.5em;font-size:16px;line-height:1.85;color:var(--body-copy);}
.article-body li::marker{color:#9bbf2c;}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--bg-soft);
  border-left:3px solid var(--lime);border-radius:0 12px 12px 0;color:var(--text-2);font-size:16px;
}
.article-body blockquote p{margin:0;font-size:16px;color:var(--text-2);}
.article-body img{border-radius:16px;margin:1.6em auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;}
.article-body a{color:var(--ink);border-bottom:1px solid var(--lime);}
.article-body a:hover{color:#7d9f16;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border-top:2px solid var(--ink);}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;line-height:1.7;}
.article-body thead th{background:var(--bg-soft);font-weight:600;color:var(--ink);}
.article-body tbody tr:nth-child(even){background:#fafaf7;}
.article-body code{background:var(--bg-soft);border-radius:6px;padding:2px 6px;font-size:.92em;}
.article-body strong{font-weight:700;color:var(--ink);}

.article-empty{
  text-align:center;padding:40px 10px 26px;
}
.article-empty .empty-icon{
  width:64px;height:64px;border-radius:18px;background:var(--bg-soft);color:var(--text-3);
  display:grid;place-items:center;font-size:24px;margin:0 auto 20px;
}
.article-empty h2{font-size:1.4rem;font-weight:700;color:var(--ink);margin:0 0 10px;}
.article-empty p{color:var(--text-2);font-size:15.5px;margin:0 0 24px;}

.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;
  background:var(--bg-soft);color:var(--text-2);font-size:13px;font-weight:500;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.tag:hover{background:var(--lime);color:var(--ink);}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--lime);padding-bottom:2px;
}
.back-link i{transition:transform .18s var(--ease);}
.back-link:hover i{transform:translateX(-4px);}

/* ---------- 相关推荐 ---------- */
.related-section{padding:84px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;letter-spacing:-.02em;color:var(--ink);margin:0;
  position:relative;padding-left:16px;line-height:1.3;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:22px;border-radius:2px;background:var(--lime);
}
.section-head p{margin:8px 0 0;color:var(--text-2);font-size:15px;max-width:60ch;}
.post-card{
  display:flex;flex-direction:column;height:100%;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d8d8ce;}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .card-body-inner{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card .meta-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.badge-line{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  border:1px solid var(--lime);color:#7d9f16;font-size:12px;font-weight:600;background:rgba(196,245,60,.12);
}
.badge-orange{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--orange);color:#fff;font-size:12px;font-weight:600;
}
.post-card h3{font-size:17.5px;font-weight:700;line-height:1.5;color:var(--ink);margin:0 0 10px;}
.post-card h3 a{display:block;}
.post-card:hover h3 a{color:#3c4a22;}
.post-card .excerpt{
  font-size:14.5px;line-height:1.8;color:var(--text-2);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);}
.text-link i{transition:transform .18s var(--ease);}
.text-link:hover i{transform:translateX(4px);}
@media (max-width:767.98px){
  .related-section{padding:60px 0 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:96px;background:var(--ink);color:#fff;padding:76px 0;
  border-top:1px solid rgba(196,245,60,.35);
}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.cta-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--lime);
  text-transform:uppercase;margin-bottom:14px;
}
.cta-inner h2{font-size:clamp(1.5rem,3.2vw,2.2rem);font-weight:800;letter-spacing:-.02em;line-height:1.3;margin:0 0 16px;color:#fff;}
.cta-inner p{color:#b9c1b4;font-size:15.5px;line-height:1.85;margin:0;max-width:58ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
@media (max-width:991.98px){
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-actions{justify-content:flex-start;}
  .cta-band{padding:60px 0;margin-top:72px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:#E8EBE4;padding:72px 0 28px;
  border-top:1px solid var(--lime);
}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.01em;}
.site-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.site-footer a{color:#E8EBE4;font-size:14px;line-height:1.6;}
.site-footer a:hover{color:var(--lime);}
.f-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff;margin-bottom:16px;}
.f-brand .brand-mark{background:var(--lime);color:var(--ink);}
.site-footer p{color:#8A9086;font-size:14px;line-height:1.85;max-width:360px;margin:0;}
.f-link{color:#8A9086;font-size:14px;line-height:1.7;display:inline-block;}
.f-keyword-bar{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.10);
}
.f-keyword-bar span{
  font-size:13px;color:#8A9086;border:1px solid rgba(255,255,255,.14);
  border-radius:999px;padding:5px 13px;transition:color .18s var(--ease),border-color .18s var(--ease);
}
.f-keyword-bar span:hover{color:var(--lime);border-color:var(--lime);}
.f-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#8A9086;
}
@media (max-width:767.98px){
  .site-footer{padding:52px 0 24px;}
  .site-footer h4{margin-top:8px;}
  .f-keyword-bar{margin-top:32px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#0B1410;
  --lime:#C4F53C;
  --lime-deep:#B6E829;
  --orange:#FF6A2B;
  --bg:#F7F6F2;
  --white:#FFFFFF;
  --panel:#EEF0E9;
  --text:#14170F;
  --muted:#5A6157;
  --faint:#8A9086;
  --line:#E4E3DC;
  --r-card:16px;
  --r-block:20px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(11,20,16,.06);
  --sh-2:0 12px 32px rgba(11,20,16,.10);
  --sh-nav:0 2px 12px rgba(11,20,16,.07);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:-.02em;line-height:1.22;}
h1{font-size:clamp(2.1rem,4.4vw,3.3rem);font-weight:800;}
h2{font-size:clamp(1.55rem,3vw,2.3rem);font-weight:700;}
h3{font-size:1.3rem;font-weight:600;}
h4{font-size:1.1rem;font-weight:600;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
strong{font-weight:700;}
:focus-visible{outline:3px solid rgba(196,245,60,.85);outline-offset:2px;}

/* 容器 */
.container{width:100%;max-width:1320px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(max-width:1399.98px){.container{max-width:1140px;}}
@media(max-width:1199.98px){.container{max-width:960px;}}
@media(max-width:991.98px){.container{max-width:720px;}}
@media(max-width:767.98px){.container{max-width:100%;}}

/* 按钮 */
.btn-main,.btn-ghost,.btn-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;font-size:15px;font-weight:700;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-main{background:var(--lime);color:var(--ink);}
.btn-main:hover{background:var(--lime-deep);color:var(--ink);box-shadow:0 8px 20px rgba(196,245,60,.35);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-main i,.btn-ghost i,.btn-dark i{transition:transform .18s var(--ease);}
.btn-main:hover i,.btn-ghost:hover i,.btn-dark:hover i{transform:translateX(4px);}
.pill{border-radius:999px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:15px;position:relative;}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--lime);transition:width .28s var(--ease);}
.text-link:hover::after{width:100%;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:var(--white);border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease);}
.site-header.scrolled{box-shadow:var(--sh-nav);}
.nav-inner{display:flex;align-items:center;gap:34px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--lime);display:inline-flex;align-items:center;justify-content:center;font-size:15px;}
.main-nav{display:flex;align-items:center;gap:28px;margin-right:auto;}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--muted);letter-spacing:.01em;padding:6px 0;}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);transition:width .25s var(--ease);}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--ink);font-weight:700;}
.main-nav a.active::after{width:100%;}
.nav-drawer-cta{display:none;}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{display:flex;align-items:center;gap:8px;height:42px;width:180px;padding:0 16px;background:var(--panel);border-radius:999px;transition:width .3s var(--ease),box-shadow .2s var(--ease);}
.nav-search:focus-within{width:240px;box-shadow:inset 0 0 0 2px var(--lime);}
.nav-search i{color:var(--faint);font-size:14px;}
.nav-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);font-family:inherit;}
.nav-search input::placeholder{color:var(--faint);}
.nav-cta{min-height:42px;padding:10px 20px;font-size:14px;}
.nav-toggle{display:none;width:44px;height:44px;border:0;background:transparent;padding:0;flex-direction:column;justify-content:center;gap:5px;align-items:center;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media(max-width:991.98px){
  .nav-inner{gap:16px;height:64px;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--white);padding:8px 20px 24px;
    border-bottom:1px solid var(--line);box-shadow:var(--sh-nav);
    transform:translateY(-140%);opacity:0;pointer-events:none;
    transition:transform .32s var(--ease),opacity .25s var(--ease);
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .main-nav a{height:48px;display:flex;align-items:center;font-size:16px;border-bottom:1px solid var(--line);}
  .main-nav a::after{display:none;}
  .main-nav a.active{color:var(--ink);}
  .nav-drawer-cta{display:flex;justify-content:center;margin-top:18px;border-bottom:0 !important;height:48px;}
}
@media(max-width:575.98px){
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;font-size:13px;}
  .nav-cta{display:none;}
}

/* 首屏 */
.cat-hero{position:relative;isolation:isolate;overflow:hidden;background:var(--ink);}
.cat-hero::after{content:"";position:absolute;inset:0;z-index:-1;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;opacity:.85;}
.cat-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(11,20,16,.92) 0%,rgba(11,20,16,.78) 45%,rgba(11,20,16,.42) 100%);}
.cat-hero-inner{position:relative;padding:92px 0 78px;max-width:780px;color:#EDF0E8;}
.cat-hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--lime);text-transform:uppercase;margin-bottom:18px;}
.cat-hero .eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);display:inline-block;}
.cat-hero h1{color:#fff;margin-bottom:20px;}
.cat-hero p{font-size:1.06rem;line-height:1.9;color:#C9CFC6;max-width:66ch;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.cat-hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cat-hero .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1.1;}
.hero-stats span{font-size:13px;color:#9AA396;letter-spacing:.02em;}

/* 通用板块 */
.section{padding:104px 0;}
.section--tight{padding:0 0 104px;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head .tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink);background:var(--lime);border-radius:999px;padding:5px 14px;margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:1.02rem;margin-top:16px;margin-bottom:0;}
.tag-line{position:relative;padding-left:16px;}
.tag-line::before{content:"";position:absolute;left:0;top:6px;width:3px;height:18px;background:var(--lime);border-radius:2px;}
.badge-soft{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;border:1px solid var(--lime);color:var(--ink);background:rgba(196,245,60,.14);}
.badge-orange{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;background:var(--orange);color:#fff;}

/* 要点横条 */
.points-strip{background:var(--white);border-bottom:1px solid var(--line);}
.points-list{display:grid;grid-template-columns:repeat(4,1fr);}
.points-list li{padding:34px 26px 34px 0;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:6px;}
.points-list li:last-child{border-right:0;}
.points-list i{color:var(--ink);font-size:16px;width:32px;height:32px;border-radius:10px;background:var(--panel);display:inline-flex;align-items:center;justify-content:center;margin-bottom:6px;}
.points-list strong{font-size:16px;}
.points-list span{font-size:14px;color:var(--muted);line-height:1.7;}
@media(max-width:991.98px){
  .points-list{grid-template-columns:repeat(2,1fr);}
  .points-list li{padding:26px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
  .points-list li:nth-child(2n){border-right:0;}
  .points-list li:nth-last-child(-n+2){border-bottom:0;}
}
@media(max-width:575.98px){
  .points-list{grid-template-columns:1fr;}
  .points-list li{border-right:0 !important;}
  .points-list li:last-child{border-bottom:0;}
}

/* 能力区 */
.feature-lead{background:var(--white);border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;transition:box-shadow .3s var(--ease),transform .3s var(--ease);}
.feature-lead:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.feature-lead img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.feature-lead-body{padding:30px 32px 34px;}
.feature-lead-body h3{margin:14px 0 12px;font-size:1.42rem;}
.feature-lead-body p{color:var(--muted);font-size:15px;}
.tick-list{display:flex;flex-direction:column;gap:10px;margin:20px 0 24px;}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--text);}
.tick-list i{color:var(--ink);font-size:13px;margin-top:6px;}
.mini-list{display:flex;flex-direction:column;gap:18px;height:100%;}
.mini-list li{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--sh-1);transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease);}
.mini-list li:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#D6DACB;}
.mini-list .num{display:inline-block;font-size:13px;font-weight:800;color:var(--faint);letter-spacing:.08em;margin-bottom:8px;font-variant-numeric:tabular-nums;}
.mini-list h4{margin-bottom:8px;font-size:1.1rem;}
.mini-list p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8;}

/* 场景交替图文 */
.scene-row{align-items:center;}
.scene-row + .scene-row{margin-top:82px;}
.scene-copy{position:relative;}
.scene-index{font-size:clamp(2.6rem,5vw,3.6rem);font-weight:800;color:#DFE2D8;line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums;margin-bottom:10px;}
.scene-copy h3{font-size:clamp(1.3rem,2.2vw,1.7rem);margin-bottom:14px;}
.scene-copy p{color:var(--muted);font-size:15.5px;max-width:60ch;}
.scene-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.scene-points span{font-size:13px;color:var(--ink);background:var(--panel);border-radius:999px;padding:6px 14px;}
.scene-media{border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-1);}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease);}
.scene-media:hover img{transform:scale(1.04);}
@media(max-width:991.98px){
  .scene-row + .scene-row{margin-top:56px;}
  .scene-row{margin-bottom:56px;}
}

/* 流程 */
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;}
.flow-item{border-top:2px solid var(--line);padding:26px 20px 0 0;position:relative;}
.flow-item::before{content:"";position:absolute;top:-2px;left:0;width:46px;height:2px;background:var(--lime);}
.flow-item .num{font-size:13px;font-weight:800;color:var(--faint);letter-spacing:.1em;font-variant-numeric:tabular-nums;}
.flow-item h4{margin:12px 0 8px;font-size:1.05rem;}
.flow-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.8;}
@media(max-width:991.98px){
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .flow-item{padding-right:0;}
}
@media(max-width:575.98px){.flow-grid{grid-template-columns:1fr;}}

/* 数据反色块 */
.stat-block{background:var(--ink);color:#E8EBE4;border-radius:var(--r-block);padding:60px 52px;}
.stat-head{margin-bottom:44px;max-width:680px;}
.stat-head h2{color:#fff;}
.stat-head p{color:#9AA396;margin:16px 0 0;font-size:15.5px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:34px;}
.stat-grid li{border-top:1px solid rgba(232,235,228,.18);padding-top:22px;}
.stat-grid strong{display:block;font-size:clamp(2rem,3.6vw,2.8rem);font-weight:800;color:var(--lime);line-height:1.15;font-variant-numeric:tabular-nums;}
.stat-grid span{display:block;font-size:13.5px;color:#9AA396;margin-top:6px;line-height:1.7;}
@media(max-width:991.98px){
  .stat-block{padding:44px 28px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:26px;}
}
@media(max-width:575.98px){.stat-grid{grid-template-columns:1fr;}}

/* FAQ */
.faq-accordion .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-button{background:transparent;box-shadow:none;color:var(--ink);font-weight:700;font-size:1.05rem;padding:24px 52px 24px 22px;position:relative;border-radius:0;line-height:1.6;}
.faq-accordion .accordion-button::before{content:"";position:absolute;left:0;top:28px;width:3px;height:18px;background:var(--lime);border-radius:2px;opacity:0;transition:opacity .22s var(--ease);}
.faq-accordion .accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-accordion .accordion-button::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px;color:var(--faint);background-image:none;width:auto;height:auto;transition:transform .28s var(--ease),color .22s var(--ease);line-height:1;}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ink);}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-body{padding:0 52px 28px 22px;color:var(--muted);font-size:15px;line-height:1.9;}

/* 底部 CTA */
.cta-block{background:var(--ink);border-radius:var(--r-block);padding:60px 52px;color:#E8EBE4;position:relative;overflow:hidden;}
.cta-block::after{content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(196,245,60,.20),transparent 68%);}
.cta-block h2{color:#fff;margin-bottom:16px;}
.cta-block .cta-text{color:#9AA396;font-size:15.5px;max-width:52ch;}
.cta-contact{margin-top:26px;display:flex;flex-direction:column;gap:10px;}
.cta-contact span{font-size:14px;color:#9AA396;}
.cta-contact strong{color:#E8EBE4;font-weight:600;}
.form-card{background:#fff;border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-2);}
.form-card h3{font-size:1.15rem;margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--faint);margin-bottom:20px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--muted);}
.form-control{width:100%;background:var(--panel);border:1px solid transparent;border-radius:10px;padding:12px 14px;font-size:14.5px;font-family:inherit;color:var(--text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);}
.form-control::placeholder{color:var(--faint);}
.form-control:focus{outline:none;background:#fff;border-color:var(--lime);box-shadow:0 0 0 3px rgba(196,245,60,.28);}
textarea.form-control{min-height:96px;resize:vertical;}
.form-note{font-size:12.5px;color:var(--faint);margin-top:12px;text-align:center;}
@media(max-width:991.98px){
  .cta-block{padding:44px 28px;}
  .form-card{padding:24px;}
}

/* 页脚 */
.site-footer{background:var(--ink);color:#E8EBE4;margin-top:104px;border-top:1px solid var(--lime);padding:76px 0 34px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.site-footer p{color:#9AA396;font-size:14px;line-height:1.85;max-width:46ch;}
.f-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:18px;}
.f-brand .brand-mark{background:var(--lime);color:var(--ink);}
.site-footer ul{display:flex;flex-direction:column;gap:11px;}
.site-footer ul a,.f-link{color:#9AA396;font-size:14px;}
.site-footer ul a:hover{color:var(--lime);}
.f-keyword-bar{display:flex;flex-wrap:wrap;gap:10px;margin:46px 0 26px;padding-top:26px;border-top:1px solid rgba(232,235,228,.14);}
.f-keyword-bar span{font-size:12.5px;color:#9AA396;border:1px solid rgba(232,235,228,.2);border-radius:999px;padding:5px 14px;}
.f-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:22px;border-top:1px solid rgba(232,235,228,.14);font-size:13px;color:#8A9086;}
.f-bottom a{color:#8A9086;}
.f-bottom a:hover{color:var(--lime);}
@media(max-width:767.98px){
  .site-footer{padding:56px 0 28px;margin-top:72px;}
}

/* 出入场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#0B1410;
  --lime:#C4F53C;
  --lime-soft:#d3ff5a;
  --orange:#FF6A2B;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --mint:#EEF0E9;
  --text:#14170F;
  --text-2:#5A6157;
  --text-3:#8A9086;
  --line:#E4E3DC;
  --r-card:16px;
  --r-block:20px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(11,20,16,.06);
  --sh-2:0 12px 32px rgba(11,20,16,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,textarea,select{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.site-container{width:100%;max-width:1320px;margin:0 auto;padding-left:20px;padding-right:20px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(11,20,16,.07)}
.header-inner{display:flex;align-items:center;gap:30px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);
  color:var(--lime);display:grid;place-items:center;font-size:15px;
}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  letter-spacing:.01em;padding:6px 0;transition:color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--lime);transition:width .28s cubic-bezier(.22,.61,.36,1);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a.active::after{width:100%}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:var(--mint);border-radius:999px;border:0;transition:box-shadow .25s ease;
}
.nav-search i{color:var(--text-3);font-size:13px}
.nav-search input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--text);
  width:110px;transition:width .3s cubic-bezier(.22,.61,.36,1);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{box-shadow:inset 0 0 0 2px var(--lime)}
.nav-search:focus-within input{width:180px}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:0 22px;border-radius:999px;background:var(--lime);
  color:var(--ink);font-size:14px;font-weight:700;white-space:nowrap;
  transition:background .18s ease,transform .18s ease;
}
.btn-cta:hover{background:var(--lime-soft);color:var(--ink);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  position:relative;cursor:pointer;padding:0;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;background:var(--ink);
  border-radius:2px;transition:transform .3s ease,opacity .2s ease;
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;max-height:0;overflow:hidden;background:#fff;
  transition:max-height .38s cubic-bezier(.22,.61,.36,1);
}
.mobile-drawer.is-open{max-height:440px;border-top:1px solid var(--line)}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;
  color:var(--text-2);border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:var(--ink);font-weight:700;box-shadow:inset 3px 0 0 var(--lime)}
.mobile-drawer .drawer-cta{margin:16px 20px 22px;height:48px;border-radius:12px;border-bottom:0;justify-content:center}

/* ============ 通用 ============ */
.section{padding:110px 0}
.section-tight{padding:78px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--text-2);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:3px;height:18px;background:var(--lime);border-radius:2px}
.h2{font-size:clamp(1.55rem,3vw,2.3rem);font-weight:700;line-height:1.3}
.section-head{max-width:720px;margin-bottom:52px}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16.5px;line-height:1.85}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(196,245,60,.2);color:#3c4a12;border:1px solid rgba(196,245,60,.85);
}
.pill-orange{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 26px;background:var(--lime);color:var(--ink);
  border:0;border-radius:var(--r-btn);font-size:15.5px;font-weight:700;cursor:pointer;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-lime i{transition:transform .22s ease}
.btn-lime:hover{background:var(--lime-soft);color:var(--ink)}
.btn-lime:hover i{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 26px;background:#fff;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--r-btn);font-size:15.5px;
  font-weight:700;cursor:pointer;transition:background .18s ease,color .18s ease;
}
.btn-ghost:hover{background:var(--ink);color:#fff}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;
  color:var(--ink);position:relative;padding-bottom:3px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--lime);transform:scaleX(.28);transform-origin:left;
  transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.link-more:hover::after{transform:scaleX(1)}
.link-more i{transition:transform .22s ease}
.link-more:hover i{transform:translateX(4px)}

/* ============ Hero ============ */
.hero{padding:64px 0 92px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(196,245,60,.30),rgba(196,245,60,0) 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.hero h1{
  font-size:clamp(2.1rem,5vw,3.5rem);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 em{font-style:normal;box-shadow:inset 0 -14px 0 rgba(196,245,60,.55)}
.hero-lead{font-size:18px;line-height:1.85;color:var(--text-2);max-width:34ch}
.hero-points{display:grid;gap:12px;margin:26px 0 32px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.hero-points i{color:#7fa300;font-size:14px;margin-top:7px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-media{position:relative;border-radius:var(--r-block);overflow:hidden}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-block);
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,20,16,0) 45%,rgba(11,20,16,.42));
  border-radius:var(--r-block);
}
.hero-media figcaption{
  position:absolute;left:24px;right:24px;bottom:20px;z-index:2;color:#fff;
  font-size:14px;display:flex;align-items:center;gap:10px;
}
.hero-media figcaption .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);display:inline-block}

/* ============ 要点横条 ============ */
.highlights{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.highlights .hl{padding:30px 28px;border-right:1px solid var(--line)}
.highlights .hl:last-child{border-right:0}
.highlights .hl i{font-size:18px;color:#7fa300;margin-bottom:12px;display:block}
.highlights .hl h3{font-size:16px;font-weight:700;margin-bottom:6px}
.highlights .hl p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ============ 合作形式（错位网格） ============ */
.grid-stagger{display:grid;grid-template-columns:repeat(2,1fr);gap:56px;padding-bottom:48px}
.grid-stagger .item{
  padding-top:26px;border-top:1px solid var(--line);
  transition:transform .3s cubic-bezier(.22,.61,.36,1),border-color .3s ease;
}
.grid-stagger .item:nth-child(even){margin-top:44px}
.grid-stagger .item:hover{border-color:var(--ink)}
.item-num{
  font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.16em;
  font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.grid-stagger h3{font-size:1.28rem;font-weight:700;margin-bottom:12px}
.grid-stagger p{color:var(--text-2);font-size:15.5px;line-height:1.85}
.item-media{
  margin-top:22px;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);position:relative;
}
.item-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s cubic-bezier(.22,.61,.36,1)}
.grid-stagger .item:hover .item-media img{transform:scale(1.04)}
.item-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  font-size:12.5px;font-weight:600;color:var(--text-2);background:var(--mint);
  padding:4px 12px;border-radius:999px;
}

/* ============ 反色数据区 ============ */
.dark-block{
  background:var(--ink);border-radius:24px;padding:64px 56px;color:#E8EBE4;
  position:relative;overflow:hidden;
}
.dark-block::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(196,245,60,.20),rgba(196,245,60,0) 70%);
}
.dark-block .dk-head{position:relative;z-index:1;max-width:640px}
.dark-block h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.05rem);font-weight:700;line-height:1.32}
.dark-block .dk-head p{color:#9BA396;margin-top:14px;font-size:16px}
.dark-stats{
  position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);
  gap:28px;margin-top:46px;padding-top:38px;border-top:1px solid rgba(255,255,255,.12);
}
.dark-stats .ds-label{font-size:12.5px;letter-spacing:.14em;color:#8A9086;margin-bottom:10px}
.dark-stats .ds-num{
  font-size:clamp(2.1rem,4vw,3.1rem);font-weight:800;color:var(--lime);
  line-height:1.05;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.dark-stats .ds-unit{font-size:1.1rem;color:var(--lime);font-weight:700;margin-left:2px}
.dark-stats .ds-desc{font-size:13.5px;color:#9BA396;margin-top:8px}

/* ============ 合作流程 ============ */
.flow{border-top:1px solid var(--line)}
.flow-row{
  display:grid;grid-template-columns:120px 1fr 260px;gap:32px;align-items:start;
  padding:34px 0;border-bottom:1px solid var(--line);
  transition:background .25s ease,padding-left .25s ease;
}
.flow-row:hover{background:#fff;padding-left:16px}
.flow-num{
  font-size:2.4rem;font-weight:800;color:#D6D8CE;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.flow-row:hover .flow-num{color:var(--lime)}
.flow-body h3{font-size:1.18rem;font-weight:700;margin-bottom:8px}
.flow-body p{color:var(--text-2);font-size:15.5px}
.flow-meta{
  font-size:13.5px;color:var(--text-3);text-align:right;padding-top:4px;
}
.flow-meta strong{display:block;color:var(--ink);font-size:14.5px;font-weight:700;margin-bottom:4px}

/* ============ 场景 ============ */
.scene-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:0;align-items:stretch;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden}
.scene-media{position:relative;min-height:380px}
.scene-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scene-body{padding:46px 44px}
.scene-body h3{font-size:1.4rem;font-weight:700;margin-bottom:14px}
.scene-body p{color:var(--text-2);font-size:15.5px}
.scene-list{margin-top:24px;display:grid;gap:14px}
.scene-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.scene-list i{color:#7fa300;font-size:13px;margin-top:8px}
.scene-sub{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.scene-sub .ss{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s ease;
}
.scene-sub .ss:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-sub h4{font-size:16px;font-weight:700;margin-bottom:8px}
.scene-sub p{font-size:14.5px;color:var(--text-2);line-height:1.78}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq-side h2{margin-bottom:16px}
.faq-side p{color:var(--text-2);font-size:15.5px}
.faq-side .btn-ghost{margin-top:24px}
.faq-acc .accordion-item{background:transparent;border:0;border-top:1px solid var(--line)}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line)}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;color:var(--ink);font-weight:700;
  font-size:17px;padding:24px 44px 24px 16px;position:relative;
  border-radius:0;line-height:1.6;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;background:var(--lime);border-radius:2px;
  opacity:0;transition:opacity .22s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;font-size:21px;font-weight:400;color:var(--text-3);
  width:auto;height:auto;line-height:1;display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform .25s ease,color .22s ease;flex-shrink:0;margin-left:auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ink)}
.faq-acc .accordion-body{
  padding:0 44px 26px 16px;color:var(--text-2);font-size:15.5px;line-height:1.9;
}

/* ============ 底部 CTA ============ */
.cta-block{
  background:var(--ink);border-radius:24px;padding:62px 56px;color:#E8EBE4;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;
  position:relative;overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;left:-100px;top:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(196,245,60,.18),rgba(196,245,60,0) 70%);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;line-height:1.28;margin-bottom:16px}
.cta-copy p{color:#9BA396;font-size:16px;max-width:46ch}
.cta-facts{display:grid;gap:12px;margin-top:26px}
.cta-facts li{display:flex;gap:10px;align-items:flex-start;color:#C9CFC2;font-size:15px}
.cta-facts i{color:var(--lime);font-size:13px;margin-top:8px}
.cta-form{
  position:relative;z-index:1;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.12);
  border-radius:20px;padding:32px;
}
.cta-form h3{color:#fff;font-size:1.15rem;font-weight:700;margin-bottom:20px}
.form-field{display:grid;gap:8px;margin-bottom:16px}
.form-field label{font-size:13px;font-weight:600;color:#B9C0B4;letter-spacing:.02em}
.form-field input,.form-field textarea{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;padding:12px 14px;font-size:15px;color:#fff;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{min-height:96px;resize:vertical;line-height:1.7}
.form-field input::placeholder,.form-field textarea::placeholder{color:#7C8478}
.form-field input:focus,.form-field textarea:focus{
  border-color:var(--lime);box-shadow:0 0 0 3px rgba(196,245,60,.18);
}
.form-field.has-error input,.form-field.has-error textarea{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,43,.16)}
.form-note{font-size:12.5px;color:#8A9086;margin-top:12px;line-height:1.7}
.btn-submit{
  width:100%;min-height:50px;border:0;border-radius:12px;background:var(--lime);
  color:var(--ink);font-size:16px;font-weight:700;cursor:pointer;
  transition:background .18s ease;
}
.btn-submit:hover{background:var(--lime-soft)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:#E8EBE4;padding:74px 0 0;margin-top:96px;
  border-top:1px solid var(--lime);
}
.f-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#fff;margin-bottom:18px}
.f-brand .brand-mark{background:#fff;color:var(--ink)}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.01em}
.site-footer p{color:#8A9086;font-size:14px;line-height:1.85;max-width:38ch}
.site-footer ul{display:grid;gap:11px}
.site-footer ul a,.site-footer .f-link{color:#8A9086;font-size:14px;transition:color .2s ease}
.site-footer ul a:hover{color:var(--lime)}
.f-keyword-bar{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);
}
.f-keyword-bar span{
  font-size:13px;color:#8A9086;border:1px solid rgba(255,255,255,.14);
  border-radius:999px;padding:5px 14px;transition:color .2s ease,border-color .2s ease;
}
.f-keyword-bar span:hover{color:var(--lime);border-color:rgba(196,245,60,.5)}
.f-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0 30px;font-size:13px;color:#8A9086;
}
.f-bottom a{color:#8A9086;transition:color .2s ease}
.f-bottom a:hover{color:var(--lime)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .item-media img{transition:none}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:92px 0}
  .section-tight{padding:68px 0}
  .dark-block{padding:54px 40px}
  .cta-block{padding:52px 40px;gap:40px}
  .flow-row{grid-template-columns:96px 1fr 220px;gap:26px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:block}
  .mobile-drawer{display:block}
  .header-inner{height:64px;gap:16px}
  .hero{padding:44px 0 68px}
  .hero-lead{max-width:52ch}
  .hero-media{margin-top:38px}
  .highlights{grid-template-columns:repeat(2,1fr)}
  .highlights .hl:nth-child(2){border-right:0}
  .highlights .hl:nth-child(1),.highlights .hl:nth-child(2){border-bottom:1px solid var(--line)}
  .grid-stagger{gap:44px}
  .grid-stagger .item:nth-child(even){margin-top:0}
  .dark-stats{grid-template-columns:repeat(2,1fr);gap:32px}
  .flow-row{grid-template-columns:80px 1fr;gap:22px}
  .flow-meta{grid-column:2;text-align:left;padding-top:8px}
  .scene-grid{grid-template-columns:1fr}
  .scene-media{min-height:280px}
  .scene-body{padding:36px 32px}
  .scene-sub{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:36px}
  .cta-block{grid-template-columns:1fr;padding:44px 32px}
  .site-footer{padding-top:60px;margin-top:72px}
}
@media (max-width:575.98px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .site-container{padding-left:20px;padding-right:20px}
  .brand-text{font-size:17px}
  .btn-cta{padding:0 16px;font-size:13px}
  .hero h1{font-size:clamp(1.95rem,8vw,2.5rem)}
  .hero-lead{font-size:16.5px}
  .hero-actions .btn-lime,.hero-actions .btn-ghost{flex:1 1 100%}
  .highlights{grid-template-columns:1fr}
  .highlights .hl{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}
  .grid-stagger{grid-template-columns:1fr;gap:36px}
  .dark-block{padding:40px 24px;border-radius:20px}
  .dark-stats{grid-template-columns:1fr;gap:26px}
  .flow-row{grid-template-columns:1fr;gap:10px;padding:26px 0}
  .flow-num{font-size:1.9rem}
  .flow-meta{grid-column:1}
  .scene-body{padding:28px 22px}
  .faq-acc .accordion-button{font-size:15.5px;padding-right:34px}
  .faq-acc .accordion-body{padding-right:20px}
  .cta-block{padding:36px 22px;border-radius:20px}
  .cta-form{padding:24px 20px}
  .f-bottom{flex-direction:column;gap:8px}
}