/* roulang page: index */
:root{
  --brand-900:#0B2E23;
  --brand-700:#11624A;
  --brand-500:#17A97A;
  --lime:#C8F04A;
  --lime-deep:#A9D62F;
  --flame:#FF6A2B;
  --ink-900:#16211C;
  --ink-600:#4A5A53;
  --line:#DCE5E0;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --surface-2:#EEF3EF;
  --grad-brand:linear-gradient(120deg,#0B2E23 0%,#11624A 48%,#17A97A 100%);
  --grad-accent:linear-gradient(90deg,#C8F04A,#FF6A2B);
  --radius:20px;
  --radius-lg:28px;
  --radius-img:16px;
  --shadow:0 1px 2px rgba(11,46,35,.06),0 12px 32px -18px rgba(11,46,35,.28);
  --shadow-hover:0 24px 48px -24px rgba(11,46,35,.36);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-600);
  font-size:16px;
  line-height:1.75;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;letter-spacing:.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,240,74,.55);border-radius:10px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--surface-2)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:62ch}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-size:14.5px;font-weight:600;transition:color .25s}
.link-more span{transition:transform .25s}
.link-more:hover{color:var(--flame)}
.link-more:hover span{transform:translateX(4px)}
.tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;background:rgba(200,240,74,.28);color:#33591A;font-size:12.5px;font-weight:600;line-height:1.5}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#7A8B83;font-variant-numeric:tabular-nums}
.dot-sep{width:4px;height:4px;border-radius:50%;background:var(--line)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 26px;font-size:15px;font-weight:600;border:1px solid transparent;transition:all .3s cubic-bezier(.4,0,.2,1);text-align:center}
.btn-primary{background:var(--flame);color:#fff}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .35s cubic-bezier(.4,0,.2,1),box-shadow .35s,border-color .35s;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-500)}
.card-media{overflow:hidden;border-radius:var(--radius-img);background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.76);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding:6px 0}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 auto}
.topbar-domain{letter-spacing:.02em;color:rgba(255,255,255,.9);font-variant-numeric:tabular-nums}
.topbar-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.topbar-right a{transition:color .2s}
.topbar-right a:hover{color:#fff}
.topbar-btn{border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:2px 12px;font-size:12.5px}
.topbar-btn:hover{border-color:var(--lime);color:var(--lime)}
.hide-sm{display:none}
@media(min-width:768px){.hide-sm{display:inline-flex}}
/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 10px 30px -22px rgba(11,46,35,.5)}
.nav-inner{display:flex;align-items:center;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px}
.brand-name{display:block;font-size:16px;font-weight:800;color:var(--ink-900);line-height:1.2}
.brand-sub{display:block;font-size:11px;letter-spacing:.16em;color:var(--brand-700)}
.nav-links{display:none}
@media(min-width:1024px){.nav-links{display:flex;align-items:center;gap:4px;margin-left:26px}}
.nav-links a{position:relative;padding:9px 14px;font-size:15px;font-weight:500;color:var(--ink-900);border-radius:999px;transition:color .24s}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand-700);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand-700);transition:all .25s}
.icon-btn:hover{border-color:var(--brand-500);background:var(--surface-2)}
.nav-toggle{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:.25s}
.nav-toggle:hover{border-color:var(--brand-500);background:var(--surface-2)}
@media(min-width:1024px){.nav-toggle{display:none}}
/* 抽屉 */
.overlay{position:fixed;inset:0;background:rgba(11,46,35,.45);opacity:0;visibility:hidden;transition:opacity .24s,visibility .24s;z-index:70}
.overlay.show{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;width:84%;max-width:340px;height:100%;background:#fff;z-index:80;transform:translateX(100%);transition:transform .24s ease;padding:22px;overflow-y:auto;box-shadow:-24px 0 44px -30px rgba(11,46,35,.55)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;font-size:18px;color:var(--brand-900)}
.drawer-note{margin-top:16px;font-size:13px;color:#7A8B83}
.drawer-nav{margin-top:8px}
.drawer-nav a{display:block;padding:15px 2px;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;color:var(--ink-900);transition:color .2s,padding-left .2s}
.drawer-nav a:hover{color:var(--brand-700);padding-left:6px}
.drawer-nav a.active{color:var(--brand-700);font-weight:700}
.drawer-cta{display:block;margin-top:20px;text-align:center}
/* Hero */
.hero{position:relative;padding:44px 0 40px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(17,98,74,.16) 1.2px,transparent 1.2px);background-size:18px 18px;opacity:.45;pointer-events:none}
.hero-grid{position:relative;display:grid;gap:34px}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;align-items:center}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--brand-700);background:rgba(200,240,74,.3);border-radius:999px;padding:6px 14px}
.hero h1{margin-top:18px;font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15;letter-spacing:.01em}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-600);max-width:52ch}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-note{margin-top:18px;font-size:13.5px;color:#7A8B83}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:300px;box-shadow:var(--shadow)}
@media(min-width:768px){.hero-visual{min-height:280px}}
@media(min-width:1024px){.hero-visual{min-height:400px}}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-mask{position:absolute;inset:0;background:linear-gradient(105deg,rgba(11,46,35,.82) 0%,rgba(17,98,74,.55) 52%,rgba(11,46,35,.2) 100%)}
.hero-badges{position:absolute;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.hero-badge{background:#fff;border-left:4px solid var(--lime);border-radius:14px;padding:10px 14px;display:flex;align-items:baseline;gap:8px;box-shadow:var(--shadow)}
.hero-badge b{font-size:22px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums}
.hero-badge i{font-style:normal;font-size:12px;color:var(--ink-600)}
/* 数据徽章条 */
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat{background:linear-gradient(120deg,rgba(200,240,74,.36),rgba(255,106,43,.16));border:1px solid rgba(17,98,74,.1);border-radius:18px;padding:18px 20px}
.stat-num{display:block;font-size:26px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--ink-600)}
/* 网格 */
.grid-3{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}}
/* 合集目录 */
.catalog-card{padding:22px;display:flex;flex-direction:column;gap:12px}
.cat-num{font-size:32px;font-weight:800;color:var(--lime-deep);font-variant-numeric:tabular-nums;line-height:1}
.catalog-media{aspect-ratio:16/10}
.catalog-card h3{font-size:19px;font-weight:600}
.catalog-card p{font-size:14.5px;color:var(--ink-600)}
.catalog-card .meta-row{margin-top:auto;padding-top:4px}
/* 精选条目 */
.feature-wrap{display:grid;gap:24px}
@media(min-width:1024px){.feature-wrap{grid-template-columns:1fr 1fr}}
.feature-col{display:grid;gap:24px;align-content:start}
@media(min-width:1024px){.feature-col-b{padding-top:16px}}
.feature-card{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:520px){.feature-card{grid-template-columns:150px 1fr}}
.feature-media{aspect-ratio:16/11;border-radius:0}
@media(min-width:520px){.feature-media{height:100%;aspect-ratio:auto;border-radius:0}}
.feature-body{padding:20px;display:flex;flex-direction:column;gap:10px}
.feature-body h3{font-size:18px;font-weight:600}
.feature-body p{font-size:14.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
/* 最新信息 */
.post-list{display:grid;gap:18px}
.post-card{display:grid;grid-template-columns:1fr;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;transition:transform .35s cubic-bezier(.4,0,.2,1),box-shadow .35s,border-color .35s}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-500)}
@media(min-width:768px){.post-card{grid-template-columns:230px 1fr;align-items:stretch}}
.post-thumb{display:block;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/10;background:var(--surface-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.post-meta-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:#7A8B83;font-variant-numeric:tabular-nums}
.post-title{font-size:18px;font-weight:600}
.post-title a{transition:color .25s}
.post-title a:hover{color:var(--brand-700)}
.post-desc{font-size:14.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--brand-700);font-weight:600}
.empty-state{border:1px dashed var(--line);border-radius:var(--radius);background:rgba(255,255,255,.7);padding:38px 22px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}
.empty-icon{width:46px;height:46px;border-radius:14px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand-700);font-size:20px}
.empty-state p{font-size:14.5px;color:var(--ink-600)}
/* 相关推荐 */
.rec-row{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.rec-row::-webkit-scrollbar{height:6px}
.rec-row::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.rec-row > *{flex:0 0 78vw;scroll-snap-align:start}
@media(min-width:1024px){.rec-row{display:grid;grid-template-columns:repeat(3,1fr);overflow:visible;padding-bottom:0}.rec-row > *{flex:none}}
.rec-card{padding:18px;display:flex;flex-direction:column;gap:12px}
.rec-media{aspect-ratio:16/10}
.rec-card h3{font-size:17px;font-weight:600}
.rec-card p{font-size:14px;color:var(--ink-600)}
/* FAQ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:background .26s,border-color .26s}
.faq-item.open{background:var(--surface-2);border-color:rgba(17,98,74,.28)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink-900)}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:#fff;border:1px solid var(--line);display:grid;place-items:center;font-size:16px;font-weight:700;color:var(--brand-700);transition:transform .26s,background .26s}
.faq-item.open .faq-icon{background:var(--lime);border-color:var(--lime);transform:rotate(180deg);color:var(--brand-900)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-600)}
/* CTA */
.cta-band{position:relative;background:var(--grad-brand);border-radius:var(--radius-lg);padding:32px;display:grid;gap:22px;color:#fff;overflow:hidden}
@media(min-width:1024px){.cta-band{grid-template-columns:6fr 4fr;align-items:center;padding:44px}}
.cta-band::after{content:"";position:absolute;right:-40px;top:-40px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(200,240,74,.28),transparent 70%);pointer-events:none}
.cta-band h2{color:#fff;font-size:clamp(20px,2.6vw,28px);font-weight:700}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82);max-width:44ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
@media(max-width:520px){.cta-actions .btn{width:100%}}
/* 页脚 */
.footer{background:var(--brand-900);color:rgba(255,255,255,.8);margin-top:24px}
.footer-top{height:2px;background:var(--grad-accent)}
.footer-grid{display:grid;gap:30px;padding:52px 0 34px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer h4{color:var(--lime);font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.04em}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22)}
.footer-brand strong{color:#fff;font-size:16px;font-weight:800}
.footer-about p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:36ch}
.footer li{margin-bottom:10px}
.footer li a,.footer .footer-link{font-size:14px;color:rgba(255,255,255,.8);transition:color .2s,transform .2s;display:inline-block}
.footer li a:hover,.footer .footer-link:hover{color:#fff;transform:translateX(-2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:12.5px;color:rgba(255,255,255,.55)}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --brand-900:#0B2E23;
  --brand-700:#11624A;
  --brand-500:#17A97A;
  --lime:#C8F04A;
  --flame:#FF6A2B;
  --ink-900:#16211C;
  --ink-600:#4A5A53;
  --ink-400:#7A8A83;
  --line:#DCE5E0;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --surface-2:#EEF3EF;
  --radius-sm:12px;
  --radius:20px;
  --radius-lg:28px;
  --shadow-1:0 1px 2px rgba(11,46,35,.06),0 12px 32px -18px rgba(11,46,35,.28);
  --shadow-2:0 24px 48px -24px rgba(11,46,35,.36);
  --gradient-brand:linear-gradient(120deg,#0B2E23 0%,#11624A 48%,#17A97A 100%);
  --gradient-accent:linear-gradient(90deg,#C8F04A,#FF6A2B);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink-900);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{text-decoration:none;color:inherit;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;box-shadow:0 0 0 4px rgba(11,46,35,.12);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 12px 32px -26px rgba(11,46,35,.55);}
.nav-inner{display:flex;align-items:center;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:var(--gradient-brand);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:800;
  box-shadow:0 8px 18px -10px rgba(11,46,35,.75);
}
.brand-name{display:block;font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.2;}
.brand-sub{display:block;font-size:11.5px;letter-spacing:.08em;color:var(--brand-700);line-height:1.5;font-weight:600;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:10px;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 14px;
  font-size:15px;font-weight:500;color:var(--ink-900);border-radius:10px;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand-700);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--ink-600);display:grid;place-items:center;
  transition:color .2s,border-color .2s,transform .2s;
}
.icon-btn:hover{color:var(--brand-700);border-color:var(--brand-500);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .24s var(--ease),opacity .2s;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 24px;font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .3s var(--ease),background-color .3s,color .3s,border-color .3s,box-shadow .3s;
}
.btn:active{transform:translateY(0);filter:brightness(.96);}
.btn-primary{background:var(--flame);color:#fff;box-shadow:0 14px 28px -18px rgba(255,106,43,.95);}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-light-ghost{background:transparent;border-color:rgba(255,255,255,.62);color:#fff;}
.btn-light-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
.btn-flame{background:var(--flame);color:#fff;}
.btn-flame:hover{background:#fff;color:var(--brand-900);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-700);transition:color .2s;}
.link-arrow .arrow{transition:transform .24s var(--ease);}
.link-arrow:hover{color:var(--flame);}
.link-arrow:hover .arrow{transform:translateX(4px);}

/* ---------- article hero ---------- */
.article-hero{padding:32px 0 0;}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--gradient-brand);color:#fff;
  padding:34px 38px 38px;
  box-shadow:var(--shadow-1);
}
.hero-card-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,46,35,.94) 0%,rgba(11,46,35,.66) 58%,rgba(23,169,122,.28) 100%);
}
.hero-card-inner{position:relative;z-index:2;max-width:800px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.8);transition:color .2s;}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{opacity:.5;}
.crumb-current{color:#fff;max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.5;}
.chip-cat{background:rgba(200,240,74,.94);color:#0B2E23;}
.article-title{
  font-size:clamp(26px,4vw,38px);line-height:1.32;font-weight:800;letter-spacing:.01em;
  margin:16px 0 14px;
}
.article-lead{font-size:16px;line-height:1.82;color:rgba(255,255,255,.82);max-width:74ch;}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:24px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13.5px;color:rgba(255,255,255,.74);
}
.meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-item svg{opacity:.85;flex:0 0 auto;}

/* ---------- article layout ---------- */
.article-wrap{padding:48px 0 8px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 200px;
  gap:56px;justify-content:center;align-items:start;
}
.article-main{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px 44px 44px;box-shadow:var(--shadow-1);}
.article-body{font-size:16px;line-height:1.85;letter-spacing:.01em;color:#2B3733;overflow-wrap:break-word;word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:21px;font-weight:700;color:var(--ink-900);
  margin:40px 0 16px;padding-left:15px;line-height:1.5;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:.94em;border-radius:2px;background:var(--flame);
}
.article-body h3{font-size:17.5px;font-weight:600;color:var(--ink-900);margin:28px 0 12px;line-height:1.6;}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink-900);margin:22px 0 10px;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;transition:color .2s;}
.article-body a:hover{color:var(--flame);}
.article-body strong{font-weight:700;color:var(--ink-900);}
.article-body em{font-style:normal;color:var(--brand-700);}
.article-body ul{list-style:disc;margin:0 0 18px;padding-left:22px;}
.article-body ol{list-style:decimal;margin:0 0 18px;padding-left:22px;}
.article-body li{margin:8px 0;}
.article-body ul li::marker{color:var(--brand-500);}
.article-body ol li::marker{color:var(--brand-500);font-weight:600;}
.article-body blockquote{
  position:relative;margin:26px 0;padding:18px 22px 18px 30px;
  background:var(--surface-2);border-radius:16px;color:var(--ink-600);font-size:15.5px;
}
.article-body blockquote::before{
  content:"";position:absolute;left:12px;top:18px;bottom:18px;width:4px;border-radius:2px;
  background:var(--gradient-accent);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:26px auto;max-width:100%;height:auto;}
.article-body figure{margin:26px 0;}
.article-body figure img{margin-bottom:10px;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-400);line-height:1.7;}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0;}
.article-body table{width:100%;margin:24px 0;font-size:15px;border-top:2px solid var(--brand-700);border-bottom:2px solid var(--brand-700);}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
.article-body thead th{background:var(--surface-2);font-weight:600;color:var(--ink-900);}
.article-body tbody tr:nth-child(even){background:rgba(238,243,239,.62);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
  background:var(--surface-2);color:#0B4A38;padding:.15em .45em;border-radius:6px;
}
.article-body pre{
  background:var(--brand-900);color:#E4F2EC;padding:18px 20px;border-radius:16px;
  overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.75;
}
.article-body pre code{background:none;color:inherit;padding:0;border-radius:0;}
.article-body .table-scroll{overflow-x:auto;}

/* ---------- toc ---------- */
.article-toc{position:sticky;top:96px;font-size:14px;}
.toc-title{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--brand-700);margin-bottom:14px;}
.toc-list{border-left:1px solid var(--line);}
.toc-list a{
  display:block;padding:7px 0 7px 14px;margin-left:-1px;
  color:var(--ink-600);line-height:1.55;border-left:2px solid transparent;
  transition:color .2s,border-color .2s,background-color .2s;
}
.toc-list a:hover{color:var(--brand-700);}
.toc-list a.is-active{
  color:var(--brand-700);font-weight:600;border-left-color:var(--lime);
  background:linear-gradient(90deg,rgba(200,240,74,.2),rgba(200,240,74,0));
}

/* ---------- tags ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
}
.tag-label{font-size:13px;font-weight:600;color:var(--ink-400);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  background:rgba(200,240,74,.3);color:#0B4A38;font-size:12.5px;font-weight:600;
  border:1px solid rgba(200,240,74,.55);transition:background-color .2s,color .2s,border-color .2s;
}
.tag:hover{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}

/* ---------- empty state ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);background:var(--surface-2);
  padding:46px 30px;text-align:center;
}
.empty-icon{
  width:54px;height:54px;border-radius:18px;margin:0 auto 18px;
  background:var(--gradient-brand);color:#fff;display:grid;place-items:center;
}
.empty-state h3{font-size:19px;font-weight:700;color:var(--ink-900);margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--ink-600);max-width:44ch;margin:0 auto 22px;}

/* ---------- sections ---------- */
.section{padding:56px 0;}
.section-tight{padding:20px 0 56px;}
.section-head{margin-bottom:30px;}
.section-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;color:var(--ink-900);letter-spacing:.01em;}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:70ch;}

/* ---------- cards ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.card-media{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--ink-900);}
.card-title a{transition:color .2s;}
.card-title a:hover{color:var(--brand-700);}
.card-desc{font-size:14px;line-height:1.72;color:var(--ink-600);}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-400);
}

/* ---------- dual nav ---------- */
.dual-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.dual-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
}
.dual-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.dc-label{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--brand-700);}
.dual-card h3{font-size:19px;font-weight:600;color:var(--ink-900);margin:10px 0 8px;line-height:1.5;}
.dual-card p{font-size:14px;color:var(--ink-600);line-height:1.72;}

/* ---------- cta ---------- */
.cta-bar{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--gradient-brand);color:#fff;padding:38px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-1);
}
.cta-bar::before{
  content:"";position:absolute;right:-60px;top:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,74,.22),rgba(200,240,74,0) 70%);
}
.cta-text{position:relative;z-index:2;max-width:56ch;}
.cta-text h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.45;}
.cta-text p{margin-top:10px;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.78);}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.footer{background:var(--brand-900);color:#fff;margin-top:70px;position:relative;overflow:hidden;}
.footer::after{
  content:"";position:absolute;left:-80px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,169,122,.22),rgba(23,169,122,0) 70%);pointer-events:none;
}
.footer-top{height:1px;background:var(--gradient-accent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding:56px 0 42px;position:relative;z-index:2;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{background:var(--gradient-accent);color:var(--brand-900);box-shadow:none;}
.footer-brand strong{font-size:17px;font-weight:700;letter-spacing:.01em;}
.footer-about p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:36ch;}
.footer h4{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:16px;letter-spacing:.02em;}
.footer ul{display:flex;flex-direction:column;gap:11px;}
.footer ul a{display:inline-block;font-size:14px;color:rgba(255,255,255,.8);transition:color .2s,transform .2s var(--ease);}
.footer ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;position:relative;z-index:2;}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.55);}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-toc{display:none;}
}
@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:0;right:0;height:100dvh;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 22px 32px;margin-left:0;
    transform:translateX(105%);transition:transform .24s var(--ease);
    box-shadow:-24px 0 60px -30px rgba(11,46,35,.55);z-index:70;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{padding:14px 12px;font-size:16px;border-radius:12px;}
  .nav-links a::after{
    left:0;right:auto;top:50%;bottom:auto;width:3px;height:0;border-radius:2px;
    transform:translateY(-50%);transition:height .24s var(--ease);
  }
  .nav-links a:hover::after,.nav-links a.active::after{height:22px;transform:translateY(-50%);}
  body.nav-open::before{content:"";position:fixed;inset:0;background:rgba(11,46,35,.45);z-index:65;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (min-width:1024px){
  body.nav-open::before{display:none;}
}
@media (max-width:900px){
  .rec-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .hero-card{padding:26px 22px 30px;border-radius:22px;}
  .article-main{padding:26px 20px 30px;border-radius:22px;}
  .article-body h2{font-size:19.5px;}
  .article-body h3{font-size:17px;}
  .cta-bar{padding:28px 22px;border-radius:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .section{padding:42px 0;}
}
@media (max-width:640px){
  .rec-grid{grid-template-columns:1fr;}
  .dual-nav{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 34px;}
  .footer-about p{max-width:none;}
  .article-title{font-size:clamp(23px,6.4vw,30px);}
  .site-header .btn-sm{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
    --brand-900:#0B2E23;
    --brand-700:#11624A;
    --brand-500:#17A97A;
    --lime:#C8F04A;
    --flame:#FF6A2B;
    --ink-900:#16211C;
    --ink-600:#4A5A53;
    --line:#DCE5E0;
    --bg:#F5F7F4;
    --surface:#FFFFFF;
    --surface-2:#EEF3EF;
    --radius-sm:12px;
    --radius:20px;
    --radius-lg:28px;
    --shadow-1:0 1px 2px rgba(11,46,35,.06), 0 12px 32px -18px rgba(11,46,35,.28);
    --shadow-2:0 24px 48px -24px rgba(11,46,35,.36);
    --ease:cubic-bezier(.4,0,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box;}

  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-900);
    font-family:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",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;}

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

  :focus-visible{
    outline:none;
    box-shadow:0 0 0 3px rgba(200,240,74,.55);
    border-radius:8px;
  }

  /* ---------------- header ---------------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(8px);
    border-bottom:1px solid transparent;
    transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    box-shadow:0 8px 24px -18px rgba(11,46,35,.35);
  }
  .nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    height:68px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:38px;height:38px;flex-shrink:0;
    border-radius:12px;
    background:linear-gradient(135deg,#0B2E23 0%,#11624A 52%,#17A97A 100%);
    color:var(--lime);
    display:grid;place-items:center;
    font-weight:800;font-size:18px;line-height:1;
  }
  .brand-name{
    display:block;font-size:16px;font-weight:700;line-height:1.15;color:var(--brand-900);
  }
  .brand-sub{
    display:block;font-size:11px;letter-spacing:.16em;color:var(--brand-500);line-height:1.3;
  }
  .nav-links{display:flex;align-items:center;gap:4px;}
  .nav-links a{
    position:relative;
    display:block;
    padding:10px 14px;
    font-size:15px;
    font-weight:500;
    color:var(--ink-600);
    border-radius:999px;
    transition:color .24s var(--ease);
  }
  .nav-links a::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:3px;
    height:3px;border-radius:999px;
    background:var(--lime);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .24s var(--ease);
  }
  .nav-links a:hover{color:var(--brand-700);}
  .nav-links a:hover::after{transform:scaleX(1);}
  .nav-links a.active{color:var(--brand-700);font-weight:600;}
  .nav-links a.active::after{transform:scaleX(1);}

  .nav-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:40px;height:40px;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--surface);
    color:var(--brand-700);
    display:grid;place-items:center;
    cursor:pointer;
    transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
  }
  .icon-btn:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px);}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border:1px solid transparent;
    border-radius:999px;
    padding:12px 24px;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:background-color .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
  }
  .btn-primary{background:var(--flame);color:#fff;}
  .btn-primary:hover{background:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-1);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96);}
  .btn-sm{padding:9px 18px;font-size:14px;}

  .nav-toggle{
    display:none;
    width:42px;height:42px;
    border:1px solid var(--line);
    border-radius:12px;
    background:var(--surface);
    cursor:pointer;
    padding:0;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:4px;
  }
  .nav-toggle span{
    display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);
    transition:transform .24s var(--ease),opacity .24s var(--ease);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .nav-mask{
    position:fixed;inset:0;z-index:60;
    background:rgba(11,46,35,.45);
    opacity:0;
    transition:opacity .24s var(--ease);
  }
  .nav-mask.is-on{opacity:1;}

  @media (max-width:1023px){
    .nav-links{
      position:fixed;
      top:0;right:0;
      z-index:70;
      height:100vh;
      width:min(300px,84vw);
      background:var(--surface);
      flex-direction:column;
      align-items:stretch;
      gap:0;
      padding:84px 20px 28px;
      transform:translateX(100%);
      transition:transform .24s var(--ease);
      box-shadow:var(--shadow-2);
      overflow-y:auto;
    }
    .nav-links.is-open{transform:translateX(0);}
    .nav-links a{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;}
    .nav-links a::after{display:none;}
    .nav-links a.active{color:var(--brand-700);background:var(--surface-2);}
    .nav-toggle{display:flex;}
    .icon-btn{display:none;}
    .btn-sm{padding:8px 14px;font-size:13px;}
  }
  @media (max-width:520px){
    .brand-name{font-size:15px;}
    .btn-sm{display:none;}
  }

  body.nav-open{overflow:hidden;}

  /* ---------------- 通用板块 ---------------- */
  .section{padding:64px 0;}
  @media (min-width:768px){.section{padding:80px 0;}}
  @media (min-width:1024px){.section{padding:96px 0;}}

  .section--alt{background:var(--surface-2);}

  .block-head{margin-bottom:28px;}
  .block-head.center{text-align:center;}
  .block-title{
    margin:0 0 10px;
    font-size:clamp(24px,3vw,32px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:.01em;
    color:var(--brand-900);
  }
  .block-sub{margin:0;font-size:15px;color:var(--ink-600);max-width:720px;}
  .block-head.center .block-sub{margin-left:auto;margin-right:auto;}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--brand-700);
    transition:color .24s var(--ease);
  }
  .text-link .arrow{display:inline-block;transition:transform .24s var(--ease);}
  .text-link:hover{color:var(--flame);}
  .text-link:hover .arrow{transform:translateX(4px);}

  /* ---------------- 分类头部 ---------------- */
  .cat-hero{padding:28px 0 0;}
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--ink-600);
    margin-bottom:14px;
  }
  .crumbs a{color:var(--brand-700);transition:color .24s var(--ease);}
  .crumbs a:hover{color:var(--flame);}
  .crumbs span[aria-current]{color:var(--ink-600);}

  .cat-cover{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    height:260px;
    box-shadow:var(--shadow-1);
  }
  @media (max-width:767px){.cat-cover{height:220px;}}
  .cat-cover-img{width:100%;height:100%;object-fit:cover;}
  .cat-cover-mask{
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(11,46,35,.95) 0%,rgba(17,98,74,.84) 46%,rgba(23,169,122,.38) 100%);
  }
  .cat-cover-text{
    position:absolute;inset:0;
    display:flex;flex-direction:column;justify-content:flex-end;
    padding:32px;
    color:#fff;
    max-width:840px;
  }
  @media (max-width:767px){.cat-cover-text{padding:22px;}}
  .eyebrow{
    display:inline-block;
    font-size:12px;letter-spacing:.18em;
    color:var(--lime);
    margin-bottom:10px;
  }
  .cat-title{
    margin:0 0 12px;
    font-size:clamp(26px,4vw,40px);
    font-weight:800;
    line-height:1.18;
    letter-spacing:.01em;
  }
  .cat-sub{
    margin:0;
    font-size:15px;
    line-height:1.7;
    color:rgba(255,255,255,.86);
    max-width:620px;
  }

  .cat-chips{
    display:flex;flex-wrap:wrap;gap:10px;
    margin-top:22px;
  }
  .chip{
    display:inline-flex;align-items:center;
    padding:8px 18px;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--surface);
    font-size:14px;
    color:var(--ink-600);
    transition:border-color .24s var(--ease),color .24s var(--ease),background-color .24s var(--ease);
  }
  .chip:hover{border-color:var(--brand-500);color:var(--brand-700);}
  .chip.is-active{
    background:var(--brand-700);
    border-color:var(--brand-700);
    color:#fff;
    font-weight:600;
  }

  .stat-row{
    list-style:none;
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:14px;
    margin:22px 0 0;
    padding:0;
  }
  @media (max-width:900px){.stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (max-width:767px){
    .stat-row{
      display:flex;
      overflow-x:auto;
      scroll-snap-type:x mandatory;
      padding-bottom:8px;
      -webkit-overflow-scrolling:touch;
    }
    .stat{min-width:62%;scroll-snap-align:start;}
  }
  .stat{
    display:flex;
    align-items:baseline;
    gap:10px;
    padding:16px 18px;
    border-radius:18px;
    border:1px solid var(--line);
    background:linear-gradient(120deg,rgba(200,240,74,.30) 0%,rgba(255,106,43,.12) 100%);
  }
  .stat-num{
    font-size:26px;font-weight:800;line-height:1;
    color:var(--brand-700);
  }
  .stat-label{font-size:13px;color:var(--ink-600);}

  /* ---------------- 列表布局 ---------------- */
  .cat-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
  }
  @media (min-width:1024px){
    .cat-layout{grid-template-columns:3fr 9fr;gap:40px;align-items:start;}
  }

  .cat-side{display:flex;flex-direction:column;gap:16px;}
  @media (min-width:1024px){
    .cat-side{position:sticky;top:96px;}
  }
  .side-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:20px;
    box-shadow:var(--shadow-1);
  }
  .side-card--accent{
    background:linear-gradient(140deg,rgba(23,169,122,.10) 0%,rgba(200,240,74,.18) 100%);
    border-color:rgba(23,169,122,.28);
  }
  .side-title{
    margin:0 0 12px;
    font-size:13px;
    font-weight:600;
    letter-spacing:.14em;
    color:var(--brand-500);
  }
  .side-nav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
  .side-nav a{
    display:block;
    padding:9px 12px;
    border-radius:10px;
    font-size:14px;
    color:var(--ink-600);
    border-left:3px solid transparent;
    transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  }
  .side-nav a:hover{
    background:var(--surface-2);
    color:var(--brand-700);
    border-left-color:var(--lime);
  }
  .side-text{margin:0 0 14px;font-size:14px;line-height:1.7;color:var(--ink-600);}

  .cat-list{display:flex;flex-direction:column;gap:20px;}

  .topic-row{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    padding:18px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-1);
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  @media (min-width:768px){
    .topic-row{grid-template-columns:250px 1fr;gap:24px;padding:20px;}
  }
  .topic-row:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-2);
    border-color:rgba(23,169,122,.45);
  }
  .topic-media{
    border-radius:16px;
    overflow:hidden;
    background:var(--surface-2);
  }
  .topic-media img{
    width:100%;
    height:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    transition:transform .5s var(--ease);
  }
  .topic-row:hover .topic-media img{transform:scale(1.04);}

  .topic-body{display:flex;flex-direction:column;gap:10px;min-width:0;}
  .topic-top{display:flex;align-items:center;gap:12px;}
  .topic-num{
    font-size:30px;font-weight:800;line-height:1;
    color:var(--lime);
    text-shadow:0 1px 0 rgba(11,46,35,.18);
  }
  .tag{
    display:inline-flex;align-items:center;
    padding:3px 12px;
    border-radius:999px;
    background:rgba(200,240,74,.32);
    color:var(--brand-900);
    font-size:12px;
    font-weight:600;
  }
  .topic-title{
    margin:0;
    font-size:19px;
    font-weight:600;
    line-height:1.45;
  }
  .topic-title a{transition:color .24s var(--ease);}
  .topic-title a:hover{color:var(--brand-700);}
  .topic-excerpt{
    margin:0;
    font-size:15px;
    line-height:1.75;
    color:var(--ink-600);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .points{
    list-style:none;
    margin:0;
    padding:0;
    display:grid;
    gap:6px;
  }
  @media (min-width:768px){
    .points{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;}
  }
  .points li{
    position:relative;
    padding-left:16px;
    font-size:14px;
    color:var(--ink-600);
  }
  .points li::before{
    content:"";
    position:absolute;
    left:0;top:9px;
    width:6px;height:6px;
    border-radius:999px;
    background:var(--brand-500);
  }
  .meta-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:10px;
    margin-top:auto;
    padding-top:12px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--ink-600);
  }

  /* ---------------- 更新与口径 ---------------- */
  .standard-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:start;
  }
  @media (min-width:1024px){
    .standard-grid{grid-template-columns:5fr 7fr;gap:48px;}
  }
  .standard-list{
    list-style:none;
    margin:0;
    padding:0;
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  .standard-list li{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:18px 20px;
    box-shadow:var(--shadow-1);
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .standard-list li:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-2);
    border-color:rgba(23,169,122,.45);
  }
  .standard-list strong{
    display:block;
    font-size:16px;
    font-weight:600;
    color:var(--brand-900);
    margin-bottom:6px;
  }
  .standard-list p{margin:0;font-size:15px;line-height:1.8;color:var(--ink-600);}

  /* ---------------- FAQ ---------------- */
  .faq-list{
    display:flex;
    flex-direction:column;
    gap:14px;
    max-width:900px;
    margin:0 auto;
  }
  .faq-item{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-1);
    overflow:hidden;
    transition:background-color .26s var(--ease),border-color .26s var(--ease);
  }
  .faq-item.is-open{
    background:var(--surface-2);
    border-color:rgba(23,169,122,.45);
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:18px 20px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--brand-900);
    cursor:pointer;
  }
  .faq-icon{
    flex-shrink:0;
    width:26px;height:26px;
    border-radius:999px;
    display:grid;place-items:center;
    background:rgba(200,240,74,.5);
    color:var(--brand-900);
    font-size:16px;
    line-height:1;
    transition:transform .26s var(--ease),background-color .26s var(--ease);
  }
  .faq-item.is-open .faq-icon{
    background:var(--flame);
    color:#fff;
    transform:rotate(180deg);
  }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .26s var(--ease);
  }
  .faq-a p{
    margin:0;
    padding:0 20px 20px;
    font-size:15px;
    line-height:1.8;
    color:var(--ink-600);
  }

  /* ---------------- CTA ---------------- */
  .cta-bar{
    position:relative;
    overflow:hidden;
    display:flex;
    flex-direction:column;
    gap:22px;
    padding:32px;
    border-radius:var(--radius-lg);
    background:linear-gradient(120deg,#0B2E23 0%,#11624A 48%,#17A97A 100%);
    color:#fff;
    box-shadow:var(--shadow-1);
  }
  @media (min-width:768px){
    .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 40px;}
  }
  .cta-bar::after{
    content:"";
    position:absolute;
    right:-30px;top:-40px;
    width:240px;height:240px;
    background-image:radial-gradient(rgba(200,240,74,.45) 1.5px,transparent 1.6px);
    background-size:16px 16px;
    opacity:.28;
    pointer-events:none;
  }
  .cta-text{position:relative;z-index:1;max-width:640px;}
  .cta-title{
    margin:0 0 10px;
    font-size:clamp(22px,2.6vw,28px);
    font-weight:700;
    line-height:1.3;
  }
  .cta-text p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.85);}
  .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
  @media (max-width:767px){
    .cta-actions .btn{width:100%;}
  }

  /* ---------------- footer ---------------- */
  .footer{
    background:var(--brand-900);
    color:#fff;
    margin-top:8px;
  }
  .footer-top{
    height:1px;
    background:linear-gradient(90deg,var(--lime) 0%,var(--flame) 100%);
  }
  .footer .container{padding-top:52px;}
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:38px;
  }
  @media (min-width:768px){
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
  }
  .footer-brand{
    display:flex;align-items:center;gap:10px;
    margin-bottom:14px;
  }
  .footer-brand strong{font-size:16px;font-weight:700;color:#fff;}
  .footer-about p{
    margin:0;
    font-size:14px;
    line-height:1.85;
    color:rgba(255,255,255,.8);
    max-width:420px;
  }
  .footer h4{
    margin:0 0 14px;
    font-size:14px;
    font-weight:600;
    color:var(--lime);
    letter-spacing:.02em;
  }
  .footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
  .footer ul a{
    font-size:14px;
    color:rgba(255,255,255,.8);
    transition:color .24s var(--ease),transform .24s var(--ease);
    display:inline-block;
  }
  .footer ul a:hover{color:#fff;transform:translateX(-2px);}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14);
    padding:18px 0 26px;
  }
  .footer-bottom-inner{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:8px;
    font-size:12px;
    color:rgba(255,255,255,.55);
  }

  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
    .topic-row:hover,
    .standard-list li:hover,
    .icon-btn:hover,
    .btn-primary:hover{transform:none;}
    .topic-row:hover .topic-media img{transform:none;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category2 */
:root{
  --brand-900:#0B2E23;
  --brand-700:#11624A;
  --brand-500:#17A97A;
  --lime:#C8F04A;
  --lime-ink:#9CCB20;
  --flame:#FF6A2B;
  --ink-900:#16211C;
  --ink-600:#4A5A53;
  --line:#DCE5E0;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --surface-2:#EEF3EF;
  --danger:#D2452B;
  --grad-brand:linear-gradient(120deg,#0B2E23 0%,#11624A 48%,#17A97A 100%);
  --grad-accent:linear-gradient(90deg,#C8F04A,#FF6A2B);
  --r-sm:12px;
  --r-md:16px;
  --r-card:20px;
  --r-lg:28px;
  --shadow-1:0 1px 2px rgba(11,46,35,.06),0 12px 32px -18px rgba(11,46,35,.28);
  --shadow-2:0 24px 48px -24px rgba(11,46,35,.36);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,240,74,.55);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.78);font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.topbar-tip{color:rgba(255,255,255,.66);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.topbar-link{color:rgba(255,255,255,.82);border-bottom:1px solid transparent;transition:.24s var(--ease);}
.topbar-link:hover{color:#fff;border-bottom-color:var(--lime);}
.btn-ghost-light{background:transparent;border:1px solid rgba(255,255,255,.45);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:var(--lime);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease);}
.site-header.is-stuck{box-shadow:0 10px 28px -22px rgba(11,46,35,.6);}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{width:40px;height:40px;border-radius:14px;background:var(--grad-brand);color:var(--lime);display:grid;place-items:center;font-size:20px;font-weight:800;flex-shrink:0;}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.15;letter-spacing:.01em;color:var(--ink-900);}
.brand-sub{display:block;font-size:12px;color:var(--ink-600);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links > a{position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--ink-900);border-radius:10px;transition:color .24s var(--ease);}
.nav-links > a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:999px;background:var(--lime);transform:scaleX(0);transform-origin:left center;transition:transform .24s var(--ease);}
.nav-links > a:hover{color:var(--brand-700);}
.nav-links > a:hover::after{transform:scaleX(1);}
.nav-links > a.active{color:var(--brand-700);font-weight:600;}
.nav-links > a.active::after{transform:scaleX(1);}
.drawer-head{display:none;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:18px;}
.icon-btn{width:40px;height:40px;border-radius:12px;background:#fff;border:1px solid var(--line);color:var(--brand-700);display:grid;place-items:center;cursor:pointer;transition:.24s var(--ease);}
.icon-btn:hover{border-color:var(--brand-500);background:var(--surface-2);color:var(--brand-900);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:.24s var(--ease);}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0;}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-mask{position:fixed;inset:0;background:rgba(11,46,35,.45);opacity:0;pointer-events:none;transition:opacity .24s var(--ease);z-index:70;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 24px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .3s var(--ease);white-space:nowrap;}
.btn-primary{background:var(--flame);color:#fff;}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-xs{padding:6px 14px;font-size:13px;}
.btn-line{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.55);}
.btn-line:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);transition:.24s var(--ease);}
.link-arrow svg{transition:transform .24s var(--ease);}
.link-arrow:hover{color:var(--flame);}
.link-arrow:hover svg{transform:translateX(4px);}

/* 通用板块 */
.section{padding:56px 0;}
.section-alt{background:var(--surface-2);}
.section-dark{background:var(--brand-900);color:rgba(255,255,255,.82);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:.01em;color:var(--ink-900);}
.section-dark .section-title{color:#fff;}
.section-lead{margin-top:12px;font-size:15px;color:var(--ink-600);line-height:1.8;}
.section-dark .section-lead{color:rgba(255,255,255,.7);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);letter-spacing:.06em;}
.eyebrow::before{content:"";width:16px;height:3px;border-radius:999px;background:var(--grad-accent);}
.eyebrow-light{color:var(--lime);}

/* 分类页首屏 */
.page-hero{padding:32px 0 8px;}
.page-hero-card{position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:260px;display:flex;align-items:flex-end;box-shadow:var(--shadow-1);}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.page-hero-veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,46,35,.94) 0%,rgba(17,98,74,.86) 48%,rgba(23,169,122,.62) 100%);}
.page-hero-content{position:relative;padding:36px 32px;max-width:820px;}
.page-hero-title{font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.18;color:#fff;margin-top:14px;letter-spacing:.01em;}
.page-hero-sub{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.96);border-left:4px solid var(--lime);border-radius:14px;padding:10px 16px;box-shadow:var(--shadow-1);}
.hero-badge b{font-size:20px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums;}
.hero-badge span{font-size:12px;color:var(--ink-600);}

/* 分类切换条 */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;font-weight:500;color:var(--ink-600);transition:.24s var(--ease);}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px);}
.chip-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}
.chip-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}

/* 错位大卡 */
.offset-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start;}
.offset-col{display:grid;gap:24px;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:24px;}
.card-tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:rgba(200,240,74,.28);color:#3F5A11;font-size:12px;font-weight:600;}
.card-title{margin-top:14px;font-size:19px;font-weight:600;line-height:1.45;color:var(--ink-900);}
.card:hover .card-title{color:var(--brand-700);}
.card-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-600);}
.point-list{margin-top:16px;display:grid;gap:10px;}
.point-list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-600);}
.point-list li::before{content:"";flex-shrink:0;width:6px;height:6px;margin-top:9px;border-radius:999px;background:var(--lime-ink);}
.card-foot{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-600);}

/* 横向滚动条目 */
.scroll-row{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(272px,300px);gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;margin:0 -4px;}
.scroll-row > *{scroll-snap-align:start;}
.scroll-row::-webkit-scrollbar{height:8px;}
.scroll-row::-webkit-scrollbar-thumb{background:#C9D6CF;border-radius:999px;}
.scroll-row::-webkit-scrollbar-track{background:transparent;}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);transition:.3s var(--ease);}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.mini-num{font-size:26px;font-weight:800;color:var(--lime-ink);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.mini-title{margin-top:12px;font-size:18px;font-weight:600;line-height:1.45;color:var(--ink-900);}
.mini-card:hover .mini-title{color:var(--brand-700);}
.mini-text{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-600);}
.mini-meta{margin-top:16px;font-size:13px;color:var(--ink-600);display:flex;align-items:center;justify-content:space-between;gap:10px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:.3s var(--ease);}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.step-num{font-size:32px;font-weight:800;color:var(--lime-ink);font-variant-numeric:tabular-nums;line-height:1;}
.step-title{margin-top:16px;font-size:18px;font-weight:600;color:var(--ink-900);}
.step-text{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-600);}

/* 深色数据区 */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px;}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:22px;}
.stat-num{font-size:28px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.1;}
.stat-num i{font-style:normal;font-size:15px;font-weight:600;color:var(--lime);margin-left:4px;}
.stat-label{margin-top:10px;font-size:13px;color:rgba(255,255,255,.68);line-height:1.6;}
.dark-note{margin-top:24px;padding:20px 22px;border-radius:18px;background:rgba(200,240,74,.1);border-left:4px solid var(--lime);font-size:14px;line-height:1.85;color:rgba(255,255,255,.82);}

/* 相关分类推荐 */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:.3s var(--ease);}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.rec-media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.rec-card:hover .rec-media img{transform:scale(1.04);}
.rec-body{padding:22px;}
.rec-title{font-size:18px;font-weight:600;color:var(--ink-900);}
.rec-card:hover .rec-title{color:var(--brand-700);}
.rec-text{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-600);}
.rec-link{margin-top:16px;}

/* CTA 条 */
.cta-band{background:var(--grad-brand);border-radius:var(--r-lg);padding:36px;display:grid;grid-template-columns:1.35fr 1fr;gap:28px;align-items:center;color:#fff;box-shadow:var(--shadow-1);}
.cta-title{font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.35;color:#fff;}
.cta-text{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* 页脚 */
.footer{background:var(--brand-900);color:rgba(255,255,255,.8);margin-top:20px;}
.footer-top{height:4px;background:var(--grad-accent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:56px 0 28px;}
.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 p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:420px;}
.footer h4{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:16px;}
.footer ul{display:grid;gap:10px;}
.footer ul a{display:inline-block;font-size:14px;color:rgba(255,255,255,.78);transition:.22s var(--ease);}
.footer ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12px;color:rgba(255,255,255,.55);}

/* 响应式 */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:0;right:0;width:min(84vw,340px);height:100vh;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 22px 32px;margin:0;z-index:80;overflow-y:auto;
    transform:translateX(105%);transition:transform .24s var(--ease);
    box-shadow:-18px 0 44px -26px rgba(11,46,35,.6);
  }
  body.drawer-open .nav-links{transform:translateX(0);}
  body.drawer-open .nav-mask{opacity:1;pointer-events:auto;}
  .nav-links > a{padding:15px 12px;font-size:16px;border-bottom:1px solid var(--line);border-radius:12px;}
  .nav-links > a::after{display:none;}
  .nav-links > a.active{background:var(--surface-2);color:var(--brand-700);}
  .drawer-head{display:block;padding:0 12px 18px;margin-bottom:10px;border-bottom:1px solid var(--line);}
  .drawer-head strong{display:block;color:var(--brand-900);font-size:14px;letter-spacing:.02em;}
  .drawer-head span{display:block;margin-top:6px;font-size:13px;line-height:1.7;color:var(--ink-600);}
  .nav-actions{margin-left:auto;}
  .offset-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 0 24px;}
}
@media (max-width:767px){
  .topbar-tip{display:none;}
  .topbar-right .btn-ghost-light{display:none;}
  .section{padding:44px 0;}
  .page-hero-card{min-height:220px;}
  .page-hero-content{padding:28px 22px;}
  .hero-badges{gap:10px;}
  .hero-badge{padding:8px 14px;}
  .hero-badge b{font-size:18px;}
  .steps{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cta-band{padding:28px 22px;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .site-header .nav-inner{height:64px;}
  .stats-row{grid-template-columns:1fr;}
  .nav-actions .icon-btn{display:none;}
  .scroll-row{grid-auto-columns:minmax(244px,78vw);}
  .card-body{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .card:hover,.mini-card:hover,.step:hover,.rec-card:hover,.btn-primary:hover,.btn-ghost:hover{transform:none;}
}