/* roulang page: index */
:root{
  --brand-900:#0A3B31;--brand-700:#0E5C4A;--brand-500:#17A97E;--lime-400:#9BE15D;
  --amber-500:#E8A33D;--amber-200:#F2C879;
  --ink-900:#12211D;--ink-600:#4A5A55;--ink-400:#7C8A85;
  --line:#E2E7E1;--bg:#F7F5F0;--surface:#FFFFFF;--surface-2:#EDF3EE;--dark:#0A2620;
  --grad-brand:linear-gradient(135deg,#0E5C4A 0%,#17A97E 52%,#9BE15D 100%);
  --grad-warm:linear-gradient(135deg,#E8A33D,#F2C879);
  --r-sm:10px;--r-md:16px;--r-lg:22px;--r-xl:28px;
  --sh-1:0 1px 2px rgba(18,33,29,.05),0 10px 30px -18px rgba(14,92,74,.22);
  --sh-2:0 18px 40px -20px rgba(14,92,74,.34);
  --nav-h:68px;--container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px;}
.num,.stat-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;height:var(--nav-h);
  background:rgba(247,245,240,.88);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:0;}
.nav-left{width:52%;display:flex;align-items:center;gap:34px;min-width:0;}
.nav-right{width:48%;display:flex;align-items:center;justify-content:flex-end;gap:14px;
  height:100%;padding-left:24px;border-left:1px solid var(--line);
  background:linear-gradient(135deg,rgba(14,92,74,.05),rgba(155,225,93,.05));
}
.brand{display:flex;align-items:baseline;gap:2px;font-weight:800;font-size:19px;letter-spacing:.2px;white-space:nowrap;}
.brand .brand-main{color:var(--brand-700);font-size:20px;}
.brand .brand-sub{font-size:13.5px;font-weight:700;color:var(--ink-600);}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;font-size:15.5px;color:var(--ink-600);font-weight:500;
  padding:6px 0;transition:color .22s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-6px;width:16px;height:2px;border-radius:2px;
  background:var(--grad-brand);opacity:0;transform:scaleX(.4);transform-origin:left;
  transition:opacity .22s ease,transform .22s ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.icon-btn{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-600);transition:border-color .22s,color .22s,transform .22s,box-shadow .22s;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-1);}
.icon-btn svg{width:18px;height:18px;}
.hamburger{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15.5px;font-weight:600;
  transition:transform .22s ease,box-shadow .22s ease,background-position .35s ease,background-color .22s,border-color .22s,color .22s;
  white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);background-size:180% 180%;background-position:0% 50%;color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:var(--surface);border:1.5px solid var(--brand-700);color:var(--brand-700);}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-1px);}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand-700);font-weight:600;font-size:15px;}
.btn-link svg{width:16px;height:16px;transition:transform .24s ease;}
.btn-link:hover svg{transform:translateX(6px);}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px;}

/* ---------- hero ---------- */
.hero{padding:52px 0 96px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;background:var(--grad-brand);opacity:.9;
}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;min-height:560px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);
  padding:7px 16px;font-size:13px;color:var(--brand-700);font-weight:600;letter-spacing:.3px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:999px;background:var(--brand-500);}
.hero h1{
  margin:22px 0 0;font-size:clamp(30px,3.6vw,50px);line-height:1.22;font-weight:800;letter-spacing:-.4px;
}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:20px;font-size:16.5px;line-height:1.85;color:var(--ink-600);max-width:46ch;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.trust-list{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px 28px;}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ink-600);}
.trust-item svg{width:17px;height:17px;color:var(--brand-500);flex:none;}

.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:4/3;
  background:var(--grad-brand);box-shadow:var(--sh-2);border:1px solid var(--line);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;right:-14%;bottom:-22%;width:74%;height:74%;border-radius:50%;
  background:radial-gradient(circle at center,rgba(155,225,93,.55),rgba(14,92,74,0) 68%);
  filter:blur(6px);pointer-events:none;
}
.badge-float{
  position:absolute;border-radius:14px;padding:10px 14px;background:rgba(255,255,255,.92);
  border:1px solid var(--line);box-shadow:var(--sh-1);backdrop-filter:blur(6px);
  display:flex;flex-direction:column;gap:2px;line-height:1.4;
}
.badge-float .badge-num{font-size:19px;font-weight:800;color:var(--brand-700);}
.badge-float .badge-txt{font-size:12px;color:var(--ink-400);}
.badge-float.pos-1{left:16px;top:16px;}
.badge-float.pos-2{right:16px;bottom:16px;border-left:3px solid var(--amber-500);}

/* ---------- section basics ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;}
.section-head .tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-700);
  letter-spacing:1px;text-transform:uppercase;
}
.section-head h2{margin-top:14px;font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.2px;}
.section-head p{margin-top:16px;color:var(--ink-600);font-size:16.5px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- matrix ---------- */
.matrix{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;margin-top:48px;}
.matrix-main{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .35s ease,box-shadow .35s ease;
}
.matrix-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.matrix-main .media{aspect-ratio:16/10;overflow:hidden;background:var(--grad-brand);}
.matrix-main .media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.matrix-main:hover .media img{transform:scale(1.04);}
.matrix-main .body{padding:28px;}
.matrix-main h3{font-size:20px;font-weight:600;line-height:1.4;}
.matrix-main p{margin-top:12px;color:var(--ink-600);font-size:15.5px;line-height:1.8;}
.matrix-side{display:grid;gap:16px;}
.bar-card{
  display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .35s ease,box-shadow .35s ease,background-color .28s;
}
.bar-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.bar-card .round{
  flex:none;width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);color:var(--brand-700);
}
.bar-card .round svg{width:20px;height:20px;}
.bar-card h3{font-size:16.5px;font-weight:600;}
.bar-card p{margin-top:6px;font-size:14.5px;color:var(--ink-600);line-height:1.7;}
.card-index{font-size:34px;font-weight:800;color:var(--surface-2);line-height:1;}

/* ---------- stat band ---------- */
.stat-band{
  background:var(--surface-2);border-radius:24px;padding:8px;
  display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;
}
.stat-cell{padding:28px 26px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-num{font-size:44px;font-weight:800;line-height:1.1;color:var(--brand-700);}
.stat-num small{font-size:16px;font-weight:700;margin-left:4px;color:var(--brand-500);}
.stat-label{margin-top:10px;font-size:14px;color:var(--ink-600);}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px;}
.case-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .35s ease,box-shadow .35s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-card .media{aspect-ratio:16/10;overflow:hidden;background:var(--grad-brand);}
.case-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.case-card:hover .media img{transform:scale(1.04);}
.case-card .body{padding:26px 26px 24px;display:flex;flex-direction:column;flex:1;}
.pill{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 12px;
  background:var(--surface-2);color:var(--brand-700);font-size:12.5px;font-weight:600;
  transition:background-color .24s,color .24s;
}
.pill:hover{background:var(--brand-700);color:#fff;}
.case-card h3{margin-top:14px;font-size:20px;font-weight:600;line-height:1.4;transition:color .24s;}
.case-card:hover h3{color:var(--brand-700);}
.case-card p{margin-top:10px;font-size:15px;color:var(--ink-600);}
.case-foot{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-400);
}
.case-tag-year{
  position:absolute;right:16px;top:16px;border-radius:999px;padding:5px 12px;
  background:var(--grad-warm);color:#4A2E05;font-size:12.5px;font-weight:700;
}

/* ---------- steps ---------- */
.steps-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;margin-top:56px;align-items:start;}
.steps-intro{position:sticky;top:calc(var(--nav-h) + 24px);}
.steps-intro h2{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;}
.steps-intro p{margin-top:16px;color:var(--ink-600);}
.steps-intro .btn{margin-top:26px;}
.step-list{position:relative;}
.step{position:relative;padding:0 0 36px 62px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:21px;top:44px;bottom:0;width:1px;background:var(--line);
}
.step:last-child::before{display:none;}
.step-dot{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:600;padding-top:8px;}
.step p{margin-top:8px;color:var(--ink-600);font-size:15.5px;}

/* ---------- news ---------- */
.news-layout{margin-top:44px;display:grid;gap:20px;}
.news-feature{
  display:grid;grid-template-columns:40% 1fr;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .35s ease,box-shadow .35s ease;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-feature .media{aspect-ratio:16/11;overflow:hidden;background:var(--grad-brand);height:100%;}
.news-feature .media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-feature:hover .media img{transform:scale(1.04);}
.news-feature .body{padding:28px 30px;display:flex;flex-direction:column;gap:12px;justify-content:center;}
.news-feature h3{font-size:22px;font-weight:600;line-height:1.4;transition:color .24s;}
.news-feature:hover h3{color:var(--brand-700);}
.news-feature p{font-size:15.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-400);flex-wrap:wrap;}
.news-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.news-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0 26px;min-height:70px;border-bottom:1px solid var(--line);
  transition:background-color .24s ease;
}
.news-row:last-child{border-bottom:0;}
.news-row:hover{background:var(--surface-2);}
.news-row .row-title{font-size:16px;font-weight:600;transition:transform .24s ease,color .24s;}
.news-row:hover .row-title{transform:translateX(2px);color:var(--brand-700);}
.news-row .row-side{display:flex;align-items:center;gap:14px;flex:none;font-size:13.5px;color:var(--ink-400);}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface-2);border-radius:var(--r-lg);border:1px dashed var(--line);text-align:center;padding:32px;
}
.empty-state svg{width:34px;height:34px;color:var(--brand-500);}
.empty-state p{font-size:15px;color:var(--ink-600);}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;margin-top:48px;align-items:start;}
.faq-intro h2{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;}
.faq-intro p{margin-top:16px;color:var(--ink-600);}
.faq-intro .btn{margin-top:24px;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .28s ease,border-color .28s;}
.faq-item.is-open{box-shadow:var(--sh-1);border-color:#D6E4DA;}
.faq-item.is-open::before{content:"";display:block;height:3px;background:var(--grad-brand);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-q .pm{
  flex:none;width:26px;height:26px;border-radius:999px;background:var(--surface-2);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;font-weight:700;
  transition:transform .3s ease,background-color .3s ease,color .3s ease;
}
.faq-item.is-open .pm{transform:rotate(180deg);background:var(--brand-700);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 24px 22px;font-size:15.5px;line-height:1.9;color:var(--ink-600);}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;margin-top:48px;align-items:start;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--ink-600);margin-bottom:8px;font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  padding:0 16px;font-size:15.5px;transition:border-color .22s,box-shadow .22s;
}
.field textarea{height:120px;padding:14px 16px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,169,126,.18);
}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234A5A55' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;padding-right:44px;}
.form-note{font-size:13px;color:var(--ink-400);margin-top:8px;}
.info-card{
  background:var(--surface-2);border-radius:24px;overflow:hidden;border:1px solid var(--line);
}
.info-card .media{aspect-ratio:16/9;overflow:hidden;background:var(--grad-brand);}
.info-card .media img{width:100%;height:100%;object-fit:cover;}
.info-card .body{padding:26px 28px 30px;}
.info-card h3{font-size:18px;font-weight:600;}
.info-list{margin-top:16px;display:grid;gap:14px;}
.info-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-600);line-height:1.7;}
.info-list svg{width:17px;height:17px;color:var(--brand-500);flex:none;margin-top:5px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C9D6D1;position:relative;margin-top:96px;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px;}
.footer-brand .brand{color:#fff;font-size:20px;}
.footer-brand .brand .brand-main{color:var(--lime-400);}
.footer-brand .brand .brand-sub{color:rgba(255,255,255,.82);}
.footer-brand p{margin-top:18px;font-size:15px;line-height:1.8;color:#C9D6D1;max-width:34ch;}
.footer-col h4{color:rgba(255,255,255,.7);font-size:14px;font-weight:600;margin:0 0 18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:15px;color:#C9D6D1;transition:color .22s ease;}
.footer-col a:hover{color:var(--lime-400);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:13px;color:rgba(201,214,209,.75);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-toggle{display:none;}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,38,32,.45);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;
  border-radius:24px 0 0 0;transform:translateX(100%);transition:transform .32s ease;z-index:100;
  display:flex;flex-direction:column;padding:26px 24px 0;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid var(--line);}
.drawer-links{display:grid;gap:4px;padding:18px 0;flex:1;overflow:auto;}
.drawer-links a{padding:14px 4px;font-size:16.5px;font-weight:500;color:var(--ink-900);border-bottom:1px solid var(--line);}
.drawer-links a.is-active{color:var(--brand-700);font-weight:700;}
.drawer-foot{padding:20px 0 26px;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .nav-left{width:56%;gap:26px;}
  .nav-right{width:44%;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .hero{padding:40px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0;}
  .hero-sub{max-width:100%;}
  .hero-visual{order:2;}
  .matrix{grid-template-columns:1fr;}
  .steps-wrap{grid-template-columns:1fr;gap:32px;}
  .steps-intro{position:static;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .contact-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px;}
  .nav-links{display:none;}
  .nav-left{width:60%;}
  .nav-right{width:40%;}
  .hamburger{display:inline-flex;}
}
@media (max-width:767px){
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .stat-cell{border-right:1px solid var(--line);}
  .stat-cell:nth-child(2n){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .case-grid{grid-template-columns:1fr;}
  .news-feature{grid-template-columns:1fr;}
  .news-feature .media{aspect-ratio:16/10;}
  .news-row{flex-direction:column;align-items:flex-start;gap:6px;padding:16px 20px;min-height:0;}
  .news-row .row-side{gap:10px;}
}
@media (max-width:559px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:32px 0 56px;}
  .site-header,.nav-inner{height:60px;}
  :root{--nav-h:60px;}
  .btn{width:100%;height:46px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn-link{width:auto;}
  .stat-num{font-size:34px;}
  .form-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:0;padding:44px 0 24px;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.1);}
  .footer-col h4{margin:0;padding:16px 0;cursor:pointer;}
  .footer-col ul{display:none;padding-bottom:14px;}
  .footer-col.is-open ul{display:block;}
  .footer-brand{padding-bottom:24px;}
  .brand{font-size:17px;}
  .brand .brand-main{font-size:18px;}
}

/* roulang page: category1 */
:root{
    --brand-900:#0A3B31;
    --brand-700:#0E5C4A;
    --brand-500:#17A97E;
    --lime-400:#9BE15D;
    --amber-500:#E8A33D;
    --amber-200:#F2C879;
    --ink-900:#12211D;
    --ink-600:#4A5A55;
    --ink-400:#7C8A85;
    --line:#E2E7E1;
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --surface-2:#EDF3EE;
    --dark:#0A2620;
    --grad-brand:linear-gradient(135deg,#0E5C4A 0%,#17A97E 52%,#9BE15D 100%);
    --grad-warm:linear-gradient(135deg,#E8A33D,#F2C879);
    --r-sm:10px;
    --r-md:16px;
    --r-lg:22px;
    --r-xl:28px;
    --sh-1:0 1px 2px rgba(18,33,29,.05),0 10px 30px -18px rgba(14,92,74,.22);
    --sh-2:0 18px 40px -20px rgba(14,92,74,.34);
    --nav-h:68px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16.5px;
    line-height:1.85;
    color:var(--ink-900);
    background:var(--bg);
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1{font-size:clamp(30px,3.6vw,50px);line-height:1.22;font-weight:800;letter-spacing:-.01em;}
  h2{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;}
  h3{font-size:20px;line-height:1.4;font-weight:600;}
  p{font-size:16.5px;line-height:1.85;}
  :focus-visible{outline:2px solid var(--lime-400);outline-offset:3px;border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  .section{padding:96px 0;}
  .section--tight{padding:72px 0;}
  .section--soft{background:var(--surface-2);}
  .section-head{max-width:760px;margin-bottom:40px;}
  .section-head h2{margin-bottom:14px;}
  .section-head p{color:var(--ink-600);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 14px;border-radius:999px;
    background:var(--surface);border:1px solid var(--line);
    font-size:13px;color:var(--brand-700);font-weight:600;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad-brand);}
  .grad-text{
    background:var(--grad-brand);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;color:transparent;
  }

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,240,.88);
    backdrop-filter:saturate(140%) blur(8px);
    -webkit-backdrop-filter:saturate(140%) blur(8px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    height:var(--nav-h);
    display:flex;align-items:center;gap:24px;
  }
  .nav-left{
    flex:0 0 52%;
    display:flex;align-items:center;gap:28px;min-width:0;
  }
  .nav-right{
    flex:1 1 48%;
    display:flex;align-items:center;justify-content:flex-end;gap:14px;
    border-left:1px solid var(--line);
    padding-left:24px;
    background:linear-gradient(90deg,rgba(23,169,126,.08),rgba(155,225,93,.04));
    border-radius:0 0 0 0;
  }
  .brand{display:inline-flex;align-items:baseline;gap:4px;font-weight:800;letter-spacing:-.01em;}
  .brand-main{font-size:22px;color:var(--brand-900);}
  .brand-sub{font-size:13.5px;color:var(--brand-700);font-weight:700;letter-spacing:.02em;}
  .nav-links{display:flex;align-items:center;gap:26px;}
  .nav-link{
    position:relative;
    font-size:15px;font-weight:500;color:var(--ink-600);
    padding:6px 0;transition:color .22s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:-2px;
    width:16px;height:2px;border-radius:2px;
    background:var(--grad-brand);
    transform:scaleX(0);transform-origin:left;
    transition:transform .25s ease;
  }
  .nav-link:hover{color:var(--brand-700);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--brand-700);font-weight:700;}
  .nav-link.is-active::after{transform:scaleX(1);}

  .icon-btn{
    width:44px;height:44px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--surface);border:1px solid var(--line);
    color:var(--brand-700);
    transition:background .2s ease,transform .2s ease,border-color .2s ease;
  }
  .icon-btn:hover{background:var(--surface-2);border-color:#CFDCD5;transform:translateY(-1px);}
  .icon-btn svg{width:19px;height:19px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 26px;border-radius:999px;
    font-size:15.5px;font-weight:600;line-height:1;
    transition:background-position .35s ease,transform .2s ease,box-shadow .25s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{
    color:#fff;
    background-image:var(--grad-brand);
    background-size:180% 100%;
    background-position:0% 50%;
    box-shadow:var(--sh-1);
  }
  .btn-primary:hover{background-position:100% 50%;transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
  .btn-ghost{
    background:var(--surface);border:1.5px solid var(--brand-700);color:var(--brand-700);
  }
  .btn-ghost:hover{background:var(--surface-2);transform:translateY(-1px);}
  .btn-sm{height:44px;padding:0 22px;font-size:15px;}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand-700);font-weight:600;font-size:15px;
  }
  .btn-text svg{width:16px;height:16px;transition:transform .25s ease;}
  .btn-text:hover svg{transform:translateX(6px);}

  .hamburger{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);}
  .hamburger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative;}
  .hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;}
  .hamburger span::before{top:-6px;}
  .hamburger span::after{top:6px;}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(10,38,32,.45);
    opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:90;
  }
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
    background:#fff;border-radius:24px 0 0 0;
    transform:translateX(100%);transition:transform .32s cubic-bezier(.4,0,.2,1);
    z-index:100;padding:22px;display:flex;flex-direction:column;gap:8px;
    box-shadow:-20px 0 50px -30px rgba(10,38,32,.6);
  }
  .drawer-open .drawer{transform:translateX(0);}
  .drawer-open .drawer-mask{opacity:1;visibility:visible;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
  .drawer-close{width:40px;height:40px;border-radius:50%;background:var(--surface-2);color:var(--brand-900);font-size:20px;line-height:1;}
  .drawer-nav{display:flex;flex-direction:column;padding:10px 0;flex:1;}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 4px;font-size:16.5px;color:var(--ink-900);
    border-bottom:1px solid var(--line);
  }
  .drawer-nav a.is-active{color:var(--brand-700);font-weight:700;}
  .drawer-nav a span{color:var(--ink-400);font-size:18px;}
  .drawer .btn{width:100%;}

  /* ============ 面包屑 ============ */
  .breadcrumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:13.5px;color:var(--ink-400);
    padding:22px 0 0;
  }
  .breadcrumb a:hover{color:var(--brand-700);}
  .breadcrumb .sep{color:#B8C4BF;}
  .breadcrumb .current{color:var(--ink-600);}

  /* ============ 分类 Hero 横幅 ============ */
  main{padding-top:var(--nav-h);}
  .cat-hero{
    position:relative;
    padding:44px 0 0;
  }
  .cat-hero-inner{
    display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;
    min-height:360px;padding-bottom:44px;
  }
  .cat-hero h1{margin:18px 0 16px;}
  .cat-hero .lead{color:var(--ink-600);max-width:560px;margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
  .hero-note{
    display:flex;flex-wrap:wrap;gap:20px;
    font-size:14px;color:var(--ink-600);
  }
  .hero-note span{display:inline-flex;align-items:center;gap:7px;}
  .hero-note i{width:7px;height:7px;border-radius:50%;background:var(--grad-brand);display:inline-block;}
  .cat-hero-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);background:var(--brand-700);}
  .cat-hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease;}
  .cat-hero-media:hover img{transform:scale(1.03);}
  .cat-hero-media::after{
    content:"";position:absolute;inset:0;
    background:radial-gradient(120% 90% at 100% 100%,rgba(23,169,126,.42),rgba(23,169,126,0) 58%);
    pointer-events:none;
  }
  .float-badge{
    position:absolute;left:16px;bottom:16px;z-index:2;
    display:inline-flex;align-items:center;gap:10px;
    padding:10px 16px;border-radius:14px;
    background:rgba(255,255,255,.9);
    backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
    border:1px solid var(--line);box-shadow:var(--sh-1);
  }
  .float-badge .num{font-size:22px;font-weight:800;color:var(--brand-700);}
  .float-badge .cap{font-size:12.5px;color:var(--ink-600);line-height:1.3;}
  .hero-divider{height:1px;background:var(--grad-brand);}

  /* ============ 交替图文 ============ */
  .zigzag{display:flex;flex-direction:column;gap:72px;}
  .zig-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
  .zig-row.reverse .zig-media{order:2;}
  .zig-media{
    border-radius:20px;overflow:hidden;box-shadow:var(--sh-1);background:var(--brand-700);
  }
  .zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease;}
  .zig-media:hover img{transform:scale(1.04);}
  .zig-index{
    display:inline-block;font-size:34px;font-weight:800;color:#D8E4DC;line-height:1;margin-bottom:10px;
  }
  .zig-copy h3{margin-bottom:14px;}
  .zig-copy p{color:var(--ink-600);margin-bottom:16px;}
  .check-list{display:flex;flex-direction:column;gap:12px;}
  .check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink-600);}
  .check-list svg{flex:0 0 auto;width:20px;height:20px;margin-top:4px;color:var(--brand-500);}

  /* ============ 要点卡组 2×2 ============ */
  .point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .point-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:30px;box-shadow:var(--sh-1);
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFDCD5;}
  .point-num{font-size:38px;font-weight:800;color:#D8E4DC;line-height:1;margin-bottom:14px;}
  .point-card h3{margin-bottom:10px;transition:color .25s ease;}
  .point-card:hover h3{color:var(--brand-700);}
  .point-card p{color:var(--ink-600);font-size:15.5px;}
  .point-card .tag{
    display:inline-block;margin-bottom:14px;
    padding:5px 12px;border-radius:999px;background:var(--surface-2);
    color:var(--brand-700);font-size:12.5px;font-weight:600;
  }

  /* ============ FAQ ============ */
  .faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:48px;align-items:start;}
  .faq-aside{position:sticky;top:calc(var(--nav-h) + 24px);}
  .faq-aside h2{margin:16px 0 14px;}
  .faq-aside p{color:var(--ink-600);margin-bottom:22px;}
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    overflow:hidden;position:relative;transition:box-shadow .25s ease,border-color .25s ease;
  }
  .faq-item::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
    background:var(--grad-brand);transform:scaleY(0);transform-origin:top;
    transition:transform .3s ease;
  }
  .faq-item.is-open::before{transform:scaleY(1);}
  .faq-item.is-open{box-shadow:var(--sh-1);border-color:#CFDCD5;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;text-align:left;
    font-size:16.5px;font-weight:600;color:var(--ink-900);
  }
  .faq-q:hover{color:var(--brand-700);}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--surface-2);color:var(--brand-700);
    font-size:16px;font-weight:700;line-height:1;
    transition:transform .3s ease,background .25s ease,color .25s ease;
  }
  .faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--grad-brand);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
  .faq-a p{padding:0 22px 20px;font-size:15.5px;line-height:1.9;color:var(--ink-600);}

  /* ============ CTA 带 ============ */
  .cta-band{
    border-radius:var(--r-lg);padding:44px 48px;
    background:var(--dark);color:#fff;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    box-shadow:var(--sh-2);position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(155,225,93,.28),rgba(155,225,93,0) 70%);
  }
  .cta-band h2{font-size:clamp(22px,2.2vw,30px);margin-bottom:8px;color:#fff;}
  .cta-band p{color:#C9D6D1;font-size:15.5px;max-width:560px;}
  .cta-band .btn{position:relative;z-index:2;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--dark);color:#C9D6D1;
    border-top:2px solid transparent;
    background-image:linear-gradient(var(--dark),var(--dark)),var(--grad-brand);
    background-origin:border-box;background-clip:padding-box,border-box;
    margin-top:96px;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;
    padding:64px 0 40px;
  }
  .footer-brand .brand-main{color:#fff;}
  .footer-brand .brand-sub{color:var(--lime-400);}
  .footer-brand p{margin-top:16px;font-size:15px;line-height:1.8;color:#C9D6D1;max-width:340px;}
  .footer-col h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.7);margin-bottom:16px;letter-spacing:.02em;}
  .footer-col ul{display:flex;flex-direction:column;gap:11px;}
  .footer-col li{font-size:15px;line-height:1.7;}
  .footer-col a{transition:color .2s ease;}
  .footer-col a:hover{color:var(--lime-400);}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
    padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.1);
    font-size:13px;color:#8FA39C;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .nav-left{flex:0 0 58%;gap:22px;}
    .nav-links{gap:20px;}
  }
  @media (max-width:1023px){
    .section{padding:72px 0;}
    .section--tight{padding:56px 0;}
    .container{padding:0 20px;}
    .nav-left{flex:0 0 60%;}
    .nav-right{flex:1 1 40%;padding-left:18px;}
    .nav-links{display:none;}
    .hamburger{display:inline-flex;}
    .cat-hero-inner{grid-template-columns:1fr;gap:32px;min-height:0;}
    .cat-hero-media{order:2;}
    .zig-row{grid-template-columns:1fr;gap:28px;}
    .zig-row.reverse .zig-media{order:0;}
    .faq-wrap{grid-template-columns:1fr;gap:32px;}
    .faq-aside{position:static;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
  }
  @media (max-width:767px){
    body{font-size:16px;}
    .section{padding:56px 0;}
    .container{padding:0 16px;}
    .nav-right{gap:10px;}
    .nav-right .btn{display:none;}
    .point-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .btn{height:46px;padding:0 22px;}
  }
  @media (max-width:559px){
    h1{font-size:28px;}
    h2{font-size:23px;}
    h3{font-size:18px;}
    p,body{font-size:15.5px;}
    .brand-main{font-size:20px;}
    .hero-actions .btn{width:100%;}
    .cta-band{padding:28px 22px;border-radius:var(--r-md);}
    .cta-band .btn{width:100%;}
    .point-card{padding:24px 20px;}
    .faq-q{padding:18px;font-size:15.5px;}
  }

/* roulang page: article */
:root{
  --brand-900:#0A3B31;
  --brand-700:#0E5C4A;
  --brand-500:#17A97E;
  --lime-400:#9BE15D;
  --amber-500:#E8A33D;
  --amber-200:#F2C879;
  --ink-900:#12211D;
  --ink-600:#4A5A55;
  --ink-400:#7C8A85;
  --line:#E2E7E1;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EDF3EE;
  --dark:#0A2620;
  --grad-brand:linear-gradient(135deg,#0E5C4A 0%,#17A97E 52%,#9BE15D 100%);
  --grad-warm:linear-gradient(135deg,#E8A33D,#F2C879);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(18,33,29,.05),0 10px 30px -18px rgba(14,92,74,.22);
  --sh-2:0 18px 40px -20px rgba(14,92,74,.34);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--ink-600);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:var(--surface-2);
  color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad-brand)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;background:var(--surface-2);
  color:var(--brand-700);font-size:12.5px;font-weight:600;line-height:1.5;
  transition:background .25s ease,color .25s ease;
}
a.chip:hover{background:var(--brand-700);color:#fff}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;line-height:1;
  transition:transform .25s ease,box-shadow .25s ease,background-position .35s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#fff;background:var(--grad-brand);background-size:180% 180%;background-position:0% 50%;
  box-shadow:0 10px 26px -16px rgba(14,92,74,.6);
}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--brand-700);background:var(--surface);border:1.5px solid var(--brand-700);
}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-1px)}
.btn-light{color:var(--brand-900);background:#fff;box-shadow:0 10px 26px -20px rgba(0,0,0,.5)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 32px -20px rgba(0,0,0,.55)}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-size:14.5px;font-weight:600;
}
.text-link svg{transition:transform .25s ease}
.text-link:hover svg{transform:translateX(6px)}
.text-link:hover{color:var(--brand-500)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;height:var(--nav-h);
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.nav-left{display:flex;align-items:center;gap:34px;flex:0 0 52%;min-width:0}
.nav-right{
  position:relative;display:flex;align-items:center;justify-content:flex-end;gap:12px;
  flex:1 1 auto;height:100%;padding-left:24px;border-left:1px solid var(--line);
}
.nav-right::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:var(--grad-brand);opacity:.08;border-radius:0 0 0 0;
}
.brand{display:inline-flex;align-items:baseline;gap:5px;line-height:1;white-space:nowrap}
.brand-main{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900)}
.brand-sub{font-size:13px;font-weight:600;color:var(--brand-700);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:26px;min-width:0}
.nav-link{
  position:relative;font-size:14.5px;font-weight:500;color:var(--ink-600);
  padding:6px 0;transition:color .25s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:translateX(-50%);transition:width .28s ease;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{width:16px}
.icon-btn{
  position:relative;z-index:1;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);color:var(--brand-700);
  transition:background-color .25s ease,transform .25s ease,border-color .25s ease;
}
.icon-btn:hover{background:var(--surface-2);border-color:#D5E0D7;transform:translateY(-1px)}
.search-panel{
  position:absolute;top:calc(100% + 10px);right:0;z-index:5;
  display:flex;gap:8px;padding:10px;width:320px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel input{
  flex:1;height:42px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
  background:var(--bg);font-size:14.5px;
}
.search-panel input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,169,126,.18)}
.menu-toggle{
  position:relative;z-index:1;display:none;
  width:44px;height:44px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .25s ease,opacity .25s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(10,38,32,.45);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:95;
  width:84vw;max-width:400px;background:#fff;border-radius:24px 0 0 24px;
  padding:20px 22px 24px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,.2,.2,1);
  box-shadow:-20px 0 50px -30px rgba(10,38,32,.5);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px}
.drawer-nav a{
  display:block;padding:15px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--ink-600);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand-700);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:20px}

/* ---------- 文章头部 ---------- */
.article-head{
  padding:calc(var(--nav-h) + 24px) 0 34px;
  background:linear-gradient(180deg,rgba(237,243,238,.95) 0%,rgba(247,245,240,0) 100%);
}
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--ink-400);
}
.crumbs a{color:var(--ink-400);transition:color .25s ease}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:#C7D2CC}
.crumbs .current{
  max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-600);
}
.article-col{margin-top:22px}
.article-title{
  margin-top:14px;
  font-size:clamp(28px,2.8vw,40px);line-height:1.3;font-weight:800;letter-spacing:-.015em;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:18px;padding-bottom:22px;border-bottom:1px solid var(--line);
  font-size:14px;color:var(--ink-400);
}
.meta-dot{color:#C7D2CC}
.cover-figure{margin-top:32px}
.cover-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:20px;
  background:var(--grad-brand);box-shadow:var(--sh-1);
}
.cover-figure figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--ink-400)}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:24px 0 88px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 260px;
  gap:56px;justify-content:center;align-items:start;
}
.article-main{min-width:0}
.article-content{font-size:17px;line-height:1.9;color:var(--ink-900)}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:18px 0;color:var(--ink-900)}
.article-content h2{
  position:relative;margin:44px 0 16px;padding-left:16px;
  font-size:clamp(20px,2vw,25px);line-height:1.45;font-weight:700;letter-spacing:-.01em;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:20px;border-radius:2px;
  background:var(--grad-brand);
}
.article-content h3{
  margin:32px 0 12px;padding-left:14px;
  font-size:20px;line-height:1.4;font-weight:600;position:relative;
}
.article-content h3::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:14px;border-radius:2px;
  background:var(--brand-500);opacity:.7;
}
.article-content h4{margin:24px 0 10px;font-size:17.5px;font-weight:600}
.article-content ul,.article-content ol{margin:18px 0;padding-left:24px}
.article-content ul li{position:relative;padding-left:12px;margin:10px 0}
.article-content ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
}
.article-content ol{list-style:decimal;padding-left:26px}
.article-content ol li{margin:10px 0;color:var(--ink-900)}
.article-content ol li::marker{color:var(--brand-700);font-weight:700}
.article-content blockquote{
  margin:26px 0;padding:20px 22px;
  background:var(--surface-2);border-left:4px solid var(--brand-500);
  border-radius:0 16px 16px 0;color:var(--ink-600);font-size:16px;line-height:1.9;
}
.article-content blockquote p{margin:8px 0;color:var(--ink-600)}
.article-content img{
  width:100%;height:auto;margin:26px auto;border-radius:16px;box-shadow:var(--sh-1);
}
.article-content figure{margin:26px 0}
.article-content figcaption{text-align:center;font-size:13px;color:var(--ink-400);margin-top:10px}
.article-content a{
  color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;
  text-decoration-thickness:1px;transition:color .25s ease;
}
.article-content a:hover{color:var(--brand-500)}
.article-content strong{font-weight:700;color:var(--brand-900)}
.article-content hr{margin:36px 0;border:0;height:1px;background:var(--line)}
.article-content code{
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:14.5px;
  padding:2px 6px;border-radius:6px;background:var(--surface-2);color:var(--brand-900);
}
.article-content pre{
  margin:24px 0;padding:16px 18px;border-radius:var(--r-sm);
  background:var(--surface-2);border:1px solid var(--line);
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-content pre code{padding:0;background:none;font-size:14px}
.article-content table{
  width:100%;margin:26px 0;border-collapse:collapse;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.article-content thead th{
  background:var(--surface-2);color:var(--brand-900);font-weight:600;text-align:left;
}
.article-content th,.article-content td{
  padding:12px 16px;border-bottom:1px solid var(--line);line-height:1.7;
}
.article-content tbody tr:last-child td{border-bottom:0}
.article-content tbody tr:hover{background:#F5F8F4}
.table-scroll{overflow-x:auto}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;padding:40px 24px;text-align:center;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--surface);color:var(--brand-700);box-shadow:var(--sh-1);
}
.empty-state p{color:var(--ink-600);font-size:15.5px}

/* 文中 CTA */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  margin-top:44px;padding:28px 30px;border-radius:20px;
  background:var(--dark);color:#fff;position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;right:-80px;bottom:-120px;width:280px;height:280px;border-radius:50%;
  background:var(--grad-brand);opacity:.22;
}
.cta-bar .cta-copy{position:relative;max-width:560px}
.cta-bar h2{font-size:20px;font-weight:700;line-height:1.45;color:#fff}
.cta-bar p{margin-top:8px;font-size:15px;line-height:1.8;color:#C9D6D1}
.cta-bar .btn{position:relative}

/* 返回入口 */
.article-end{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.article-end .note{font-size:14px;color:var(--ink-400)}

/* 侧栏目录 */
.article-toc{
  position:sticky;top:calc(var(--nav-h) + 24px);
  padding:20px;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);box-shadow:var(--sh-1);
}
.article-toc h2{font-size:14px;font-weight:700;color:var(--brand-900);letter-spacing:.04em}
.toc-list{margin-top:14px;border-left:2px solid var(--line);padding-left:0}
.toc-list a{
  display:block;padding:7px 0 7px 14px;margin-left:-2px;border-left:2px solid transparent;
  font-size:14px;line-height:1.6;color:var(--ink-600);
  transition:color .22s ease,border-color .22s ease;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--brand-700)}
.toc-list a.is-current{color:var(--brand-700);font-weight:600;border-left-color:var(--brand-500)}
.toc-list a.toc-h3{padding-left:26px;font-size:13.5px;color:var(--ink-400)}
.toc-note{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);line-height:1.8}

/* 继续了解 */
.related{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.next-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.next-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.next-media{overflow:hidden;aspect-ratio:16/10;background:var(--grad-brand)}
.next-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.next-card:hover .next-media img{transform:scale(1.04)}
.next-body{padding:24px 24px 26px}
.next-body h3{margin-top:14px;font-size:19px;font-weight:600;line-height:1.45;transition:color .28s ease}
.next-card:hover .next-body h3{color:var(--brand-700)}
.next-body p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.next-body .text-link{margin-top:16px}

/* 页脚 */
.site-footer{position:relative;background:var(--dark);color:#C9D6D1}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:var(--lime-400)}
.footer-brand p{margin-top:16px;font-size:15px;line-height:1.8;color:#C9D6D1;max-width:360px}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.7);letter-spacing:.04em}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:15px;line-height:1.7;color:#C9D6D1}
.footer-col a{color:#C9D6D1;transition:color .25s ease}
.footer-col a:hover{color:var(--lime-400)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(201,214,209,.75);
}

/* 响应式 */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:820px;margin:0 auto}
  .article-toc{display:none}
}
@media (max-width:1023px){
  :root{--nav-h:68px}
  .container{padding:0 20px}
  .section{padding:72px 0}
  .nav-left{flex:0 0 60%}
  .nav-right{flex:0 0 40%}
  .nav-links{gap:18px}
  .nav-link{font-size:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .nav-left{flex:1 1 auto}
  .nav-right{flex:0 0 auto;border-left:0;padding-left:0}
  .nav-right::before{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .article-head{padding:calc(var(--nav-h) + 16px) 0 26px}
  .crumbs .current{max-width:220px}
  .meta-row{gap:8px;font-size:13.5px}
  .cover-figure img{border-radius:16px}
  .article-content{font-size:16.5px;line-height:1.9}
  .article-content h2{margin-top:34px}
  .article-content h3{margin-top:26px}
  .cta-bar{padding:22px 20px;border-radius:18px}
  .cta-bar .btn{width:100%}
  .next-grid{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:559px){
  .container{padding:0 16px}
  .brand-main{font-size:20px}
  .brand-sub{font-size:12px}
  .btn{height:46px;padding:0 20px;font-size:15px}
  .btn-block-mobile{width:100%}
  .article-title{font-size:26px}
  .search-panel{width:min(88vw,320px)}
}

/* roulang page: category2 */
:root{
  --brand-900:#0A3B31;
  --brand-700:#0E5C4A;
  --brand-500:#17A97E;
  --lime-400:#9BE15D;
  --amber-500:#E8A33D;
  --amber-200:#F2C879;
  --ink-900:#12211D;
  --ink-600:#4A5A55;
  --ink-400:#7C8A85;
  --line:#E2E7E1;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EDF3EE;
  --dark:#0A2620;
  --grad-brand:linear-gradient(135deg,#0E5C4A 0%,#17A97E 52%,#9BE15D 100%);
  --grad-warm:linear-gradient(135deg,#E8A33D,#F2C879);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(18,33,29,.05),0 10px 30px -18px rgba(14,92,74,.22);
  --sh-2:0 18px 40px -20px rgba(14,92,74,.34);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:-.01em}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.88);
  border:1px solid var(--line);
  color:var(--brand-700);
  font-size:13.5px;font-weight:600;letter-spacing:.02em;
  padding:7px 16px;border-radius:999px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--grad-brand)}
h1{font-size:clamp(30px,3.6vw,50px);line-height:1.22;font-weight:800}
h2{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
.lead{font-size:17px;line-height:1.9;color:var(--ink-600)}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.section-sub{margin-top:16px;font-size:16.5px;line-height:1.85;color:var(--ink-600)}
.rule-top{position:relative}
.rule-top::before{content:"";position:absolute;left:0;top:0;width:88px;height:2px;background:var(--grad-brand);border-radius:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,background-position .35s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{background-image:var(--grad-brand);background-size:180% 180%;background-position:0% 50%;color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-outline:hover{background:var(--surface-2);transform:translateY(-1px)}
.btn-dark{background:#fff;color:var(--dark);border-color:transparent}
.btn-dark:hover{transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(0,0,0,.5)}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:14.5px;transition:gap .22s ease,color .22s ease}
.link-more:hover{gap:12px;color:var(--brand-500)}
.link-more svg{width:15px;height:15px;flex:0 0 auto}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:24px}
.nav-left{display:flex;align-items:center;gap:36px;flex:1 1 52%;min-width:0}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;padding-left:20px;border-left:1px solid var(--line)}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-weight:800;flex:0 0 auto}
.brand-main{font-size:21px;letter-spacing:.01em;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-sub{font-size:12.5px;letter-spacing:.04em;color:var(--brand-700);font-weight:700;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15.5px;font-weight:500;color:var(--ink-600);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;bottom:-2px;width:16px;height:2px;
  border-radius:2px;background:var(--grad-brand);
}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;
  color:var(--ink-600);transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{color:var(--brand-700);border-color:var(--brand-500);background:var(--surface-2)}
.icon-btn svg{width:19px;height:19px}
.hamburger{display:none}

/* 搜索面板 */
.search-panel{max-height:0;overflow:hidden;transition:max-height .32s ease;border-top:0 solid var(--line)}
.search-panel.is-open{max-height:120px;border-top:1px solid var(--line)}
.search-form{display:flex;gap:12px;padding:16px 0}
.search-form input{
  flex:1;height:48px;padding:0 16px;border-radius:12px;border:1px solid var(--line);
  background:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,169,126,.18)}
.search-form input::placeholder{color:var(--ink-400)}

/* 移动抽屉 */
.overlay{position:fixed;inset:0;background:rgba(10,38,32,.45);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:80}
.overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:#fff;border-radius:24px 0 0 24px;
  transform:translateX(103%);transition:transform .34s cubic-bezier(.4,0,.2,1);
  z-index:90;display:flex;flex-direction:column;padding:24px 20px;
  box-shadow:-20px 0 50px -30px rgba(10,38,32,.5);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-links{display:flex;flex-direction:column;padding:16px 0}
.drawer-links a{
  display:block;padding:15px 4px;font-size:16px;font-weight:500;color:var(--ink-600);
  border-bottom:1px solid var(--line);transition:color .2s ease,padding-left .2s ease;
}
.drawer-links a:hover{color:var(--brand-700);padding-left:8px}
.drawer-links a.is-active{color:var(--brand-700);font-weight:700}
.drawer-foot{margin-top:auto;padding-top:20px}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;background:var(--surface-2);
  padding:54px 0 58px;border-bottom:1px solid var(--line);
}
.page-banner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(14,92,74,.055) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(14,92,74,.055) 1px,transparent 1px);
  background-size:34px 34px;
}
.page-banner::after{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:var(--grad-brand)}
.banner-inner{position:relative;max-width:820px;margin:0 auto;text-align:center}
.banner-inner h1{margin:20px 0 18px}
.banner-sub{font-size:16.5px;line-height:1.9;color:var(--ink-600)}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.crumbs{display:flex;align-items:center;gap:8px;justify-content:center;font-size:13.5px;color:var(--ink-400);margin-bottom:6px}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:var(--line)}

/* ---------- 路径条 ---------- */
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.path-item{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.path-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CBE0D3}
.path-num{
  width:34px;height:34px;border-radius:999px;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.path-item h3{font-size:17px;margin-bottom:8px}
.path-item p{font-size:14.5px;line-height:1.8;color:var(--ink-600)}

/* ---------- 图文卡网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.g-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.g-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CBE0D3}
.g-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--grad-brand);position:relative}
.g-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.g-card:hover .thumb img{transform:scale(1.04)}
.g-card .thumb .tag{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.92);color:var(--brand-700);
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;
}
.g-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.g-card h3{font-size:18px;margin-bottom:10px;transition:color .25s ease}
.g-card:hover h3{color:var(--brand-700)}
.g-card p{font-size:14.8px;line-height:1.8;color:var(--ink-600);margin-bottom:18px}
.g-card .foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- 分屏说明 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);position:relative;border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.badge-float{
  position:absolute;right:16px;bottom:16px;
  background:rgba(255,255,255,.93);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:14px;padding:10px 16px;
  display:flex;align-items:center;gap:10px;box-shadow:var(--sh-1);
}
.badge-float .n{font-size:20px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums}
.badge-float .t{font-size:12.5px;color:var(--ink-600);line-height:1.4}
.bullet-list{margin-top:24px;display:grid;gap:14px}
.bullet-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.8;color:var(--ink-600)}
.bullet-list .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:999px;background:var(--surface-2);
  display:grid;place-items:center;margin-top:4px;
}
.bullet-list .tick svg{width:12px;height:12px;color:var(--brand-700)}
.bullet-list strong{color:var(--ink-900);font-weight:600}

/* ---------- 对照表格 ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);box-shadow:var(--sh-1);
}
table.cmp{width:100%;border-collapse:collapse;min-width:760px;font-size:15.5px}
table.cmp caption{text-align:left;padding:20px 22px 0;font-size:14px;color:var(--ink-400)}
.cmp thead th{
  background:var(--surface-2);color:var(--brand-900);text-align:left;
  font-size:14px;font-weight:700;letter-spacing:.02em;
  padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.cmp tbody td{padding:16px 22px;border-bottom:1px solid var(--line);color:var(--ink-600);line-height:1.75}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody tr{transition:background-color .2s ease}
.cmp tbody tr:hover{background:#F4F8F4}
.cmp tbody td:first-child{color:var(--ink-900);font-weight:600;white-space:nowrap}

/* ---------- 准备清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CBE0D3}
.check-item .ic{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;background:var(--surface-2);
  display:grid;place-items:center;color:var(--brand-700);margin-top:2px;
}
.check-item .ic svg{width:15px;height:15px}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14.5px;line-height:1.78;color:var(--ink-600)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:var(--r-xl);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;color:#fff;
}
.cta-band::before{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:var(--grad-brand)}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(155,225,93,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.1vw,28px);color:#fff;margin-bottom:10px}
.cta-band p{font-size:15.5px;line-height:1.8;color:#C9D6D1;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

.back-home{display:flex;justify-content:center;margin-top:40px}
.back-home a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand-700);
  padding:12px 24px;border-radius:999px;border:1.5px solid var(--line);background:#fff;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.back-home a:hover{border-color:var(--brand-500);transform:translateY(-1px);box-shadow:var(--sh-1)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);color:#C9D6D1;margin-top:96px;
  border-top:2px solid transparent;
  border-image:var(--grad-brand) 1;
  padding:72px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-main{font-size:22px}
.footer-brand .brand-sub{color:var(--lime-400)}
.footer-brand p{font-size:15px;line-height:1.85;color:#C9D6D1;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.7);margin-bottom:18px;letter-spacing:.03em}
.footer-col ul{display:grid;gap:12px}
.footer-col li{font-size:15px;line-height:1.7;color:#C9D6D1}
.footer-col a{font-size:15px;color:#C9D6D1;transition:color .2s ease}
.footer-col a:hover{color:var(--lime-400)}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(201,214,209,.75);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .nav-links{gap:22px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .nav-links{display:none}
  .nav-left{flex:1 1 60%}
  .nav-right{flex:1 1 40%;justify-content:flex-end;border-left:0;padding-left:0}
  .hamburger{display:grid}
  .nav-cta{display:none}
  .path-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .split-media{order:2}
  .check-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .page-banner{padding:40px 0 44px}
  .path-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .banner-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .split-media img{aspect-ratio:16/11}
}
@media (max-width:559px){
  .container{padding:0 16px}
  h1{font-size:28px}
  .nav-inner{height:60px}
  :root{--nav-h:60px}
  .brand-main{font-size:19px}
  .btn{height:46px;font-size:15px}
  .path-item{padding:22px 20px}
  .g-card .body{padding:18px 18px 20px}
  .cta-band{padding:30px 22px}
  .site-footer{padding:56px 0 24px;margin-top:64px}
}