/* roulang page: index */
:root{
  --green:#0D4437;
  --green-deep:#093127;
  --lime:#C7F04A;
  --orange:#FF6A2B;
  --orange-dark:#E85718;
  --bg:#F6F6F1;
  --card:#FFFFFF;
  --dark:#0B1B16;
  --ink:#16211D;
  --muted:#5C6A64;
  --line:#E4E7E0;
  --weak:#EEF1E9;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(11,27,22,.06);
  --sh-2:0 12px 32px -12px rgba(11,27,22,.20);
  --sh-3:0 32px 64px -24px rgba(11,27,22,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::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","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;color:var(--ink);letter-spacing:-.01em;}
p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;margin:0;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--tight{padding:80px 0;}
.section--weak{background:var(--weak);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;}
.section-head__label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--green);text-transform:uppercase;margin-bottom:12px;}
.section-head__label::before{content:"";width:20px;height:2px;background:var(--lime);border-radius:2px;}
.section-head h2{font-size:32px;}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;max-width:640px;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--green);white-space:nowrap;}
.link-more i{transition:transform .18s var(--ease);}
.link-more:hover{color:var(--orange);}
.link-more:hover i{transform:translateX(4px);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;letter-spacing:.01em;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);}
.btn--primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px -14px rgba(255,106,43,.9);}
.btn--primary:hover{background:var(--orange-dark);box-shadow:0 14px 30px -14px rgba(255,106,43,.95);}
.btn--ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn--outline{background:transparent;color:var(--green);border:1.5px solid var(--green);}
.btn--outline:hover{background:rgba(13,68,55,.08);}
.btn--block{width:100%;}
.badge{display:inline-block;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:700;line-height:1.7;background:rgba(13,68,55,.08);color:var(--green);}
.badge--neutral{background:var(--weak);color:var(--muted);font-weight:600;}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);background:#fff;border:1px solid var(--line);}
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,246,241,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header__inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{width:38px;height:38px;border-radius:12px;background:var(--green);display:grid;place-items:center;box-shadow:var(--sh-1);}
.brand__mark svg{width:22px;height:22px;display:block;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:17px;font-weight:800;color:var(--green);letter-spacing:.01em;}
.brand__text span{font-size:11px;color:var(--muted);letter-spacing:.16em;}
.nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav a{position:relative;padding:8px 14px;border-radius:999px;font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;transition:color .18s var(--ease),background .18s var(--ease);}
.nav a:hover{color:var(--green);background:rgba(13,68,55,.06);}
.nav a.is-active{color:var(--green);font-weight:800;}
.nav a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px;background:var(--lime);}
.header__side{display:flex;align-items:center;gap:14px;margin-left:auto;}
.header__search{position:relative;display:flex;align-items:center;}
.header__search input{width:186px;height:40px;padding:0 38px 0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),width .2s var(--ease);}
.header__search input::placeholder{color:#9AA6A0;}
.header__search input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(13,68,55,.10);width:220px;}
.header__search i{position:absolute;right:14px;font-size:13px;color:var(--muted);pointer-events:none;}
.header__login{font-size:15px;font-weight:600;color:var(--muted);}
.header__login:hover{color:var(--green);}
.header__cta{height:42px;padding:0 22px;font-size:14px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--green);font-size:17px;place-items:center;}
.drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.drawer.is-open{display:block;}
.drawer__inner{padding:16px 24px 24px;}
.drawer__inner a{display:block;padding:12px 4px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer__inner a:last-of-type{border-bottom:0;}
.drawer__inner a.is-active{color:var(--green);font-weight:800;}
.drawer__search{display:flex;gap:10px;margin:16px 0 8px;}
.drawer__search input{flex:1;height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--bg);}
.hero{position:relative;overflow:hidden;color:#fff;}
.hero__bg{position:absolute;inset:0;background-image:linear-gradient(102deg,rgba(9,49,39,.97) 0%,rgba(13,68,55,.92) 42%,rgba(11,27,22,.80) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;}
.hero__bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(199,240,74,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(199,240,74,.07) 1px,transparent 1px);background-size:64px 64px;opacity:.9;}
.hero__inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:56px;min-height:600px;padding-top:72px;padding-bottom:72px;}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 16px;border-radius:999px;background:rgba(199,240,74,.14);border:1px solid rgba(199,240,74,.35);color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;}
.hero__eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(199,240,74,.18);}
.hero__title{margin-top:22px;font-size:44px;line-height:1.25;color:#fff;letter-spacing:-.015em;}
.hero__title em{font-style:normal;color:var(--lime);}
.hero__sub{margin-top:22px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.80);max-width:600px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero__trust{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);}
.hero__trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:rgba(255,255,255,.86);}
.hero__trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);}
.hero__visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(199,240,74,.22);box-shadow:0 32px 64px -24px rgba(0,0,0,.55);}
.hero__visual img{width:100%;aspect-ratio:5/4;object-fit:cover;}
.hero__chip{position:absolute;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:9px;padding:9px 18px;border-radius:999px;background:rgba(11,27,22,.78);border:1px solid rgba(199,240,74,.32);font-size:13px;font-weight:600;color:#fff;backdrop-filter:blur(6px);}
.hero__chip i{color:var(--lime);font-size:12px;}
.ask-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.ask-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 30px 30px 34px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.ask-card::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:4px;border-radius:0 4px 4px 0;background:var(--green);}
.ask-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.ask-card__no{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--green);background:rgba(199,240,74,.45);display:inline-block;padding:2px 10px;border-radius:999px;font-variant-numeric:tabular-nums;}
.ask-card h3{margin-top:16px;font-size:20px;line-height:1.5;}
.ask-card p{margin-top:12px;color:var(--muted);font-size:16px;}
.plans{display:grid;grid-template-columns:1.32fr 1fr;gap:24px;}
.plans__col{display:grid;gap:24px;align-content:start;}
.plan-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.plan-card--tall{background:linear-gradient(180deg,#fff 0%,#F3F7EC 100%);}
.plan-card__top{display:flex;align-items:center;gap:14px;margin-bottom:18px;}
.plan-card__icon{width:46px;height:46px;border-radius:14px;background:rgba(13,68,55,.08);display:grid;place-items:center;color:var(--green);font-size:18px;flex-shrink:0;}
.plan-card__no{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--muted);font-variant-numeric:tabular-nums;}
.plan-card h3{font-size:22px;line-height:1.5;}
.plan-card > p{margin-top:12px;color:var(--muted);font-size:16px;}
.plan-card ul{margin-top:20px;display:grid;gap:10px;}
.plan-card ul li{position:relative;padding-left:20px;font-size:15px;color:var(--ink);}
.plan-card ul li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--lime);}
.plan-card .link-more{margin-top:26px;}
.plan-card--tall .plan-card__media{margin-top:22px;border-radius:var(--r-img);overflow:hidden;}
.plan-card--tall .plan-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.stats{position:relative;background:var(--dark);color:#fff;overflow:hidden;}
.stats::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(199,240,74,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(199,240,74,.06) 1px,transparent 1px);background-size:72px 72px;}
.stats .container{position:relative;}
.stats__head{max-width:660px;margin-bottom:56px;}
.stats__head h2{color:#fff;font-size:32px;}
.stats__head p{margin-top:14px;color:rgba(255,255,255,.68);font-size:16px;}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{padding:28px 26px;border-radius:var(--r-card);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);transition:background .2s var(--ease),border-color .2s var(--ease);}
.stat:hover{background:rgba(199,240,74,.08);border-color:rgba(199,240,74,.28);}
.stat__num{display:flex;align-items:baseline;gap:6px;font-size:44px;font-weight:800;line-height:1.1;color:var(--lime);font-variant-numeric:tabular-nums;}
.stat__num em{font-style:normal;font-size:18px;font-weight:700;color:rgba(255,255,255,.72);}
.stat p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.72);}
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.news-card.is-feature{grid-column:span 2;}
.news-card__media{display:block;overflow:hidden;background:var(--weak);}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
.news-card:hover .news-card__media img{transform:scale(1.04);}
.news-card__body{display:flex;flex-direction:column;flex:1;padding:22px 24px 24px;}
.news-card__title{margin-top:14px;font-size:18px;line-height:1.55;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card.is-feature .news-card__title{font-size:22px;}
.news-card__sum{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);margin-top:20px;}
.news-card__foot time{font-variant-numeric:tabular-nums;}
.news-card__foot i{color:var(--green);transition:transform .18s var(--ease);}
.news-card:hover .news-card__foot i{transform:translateX(4px);}
.empty-state{padding:56px 32px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);color:var(--muted);font-size:16px;}
.faq-list{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 28px;font-size:17px;font-weight:700;color:var(--green);cursor:pointer;list-style:none;transition:background .18s var(--ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#F7F9F3;}
.faq-item summary i{color:var(--green);font-size:14px;transition:transform .22s var(--ease);flex-shrink:0;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-item__ans{padding:0 28px 26px;color:var(--muted);font-size:15px;line-height:1.8;}
.cta-section{background:var(--green);color:#fff;position:relative;overflow:hidden;}
.cta-section::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 12% 18%,rgba(199,240,74,.16),transparent 46%),radial-gradient(circle at 88% 82%,rgba(255,106,43,.16),transparent 46%);}
.cta-section .container{position:relative;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-copy h2{color:#fff;font-size:32px;}
.cta-copy p{margin-top:18px;color:rgba(255,255,255,.78);font-size:16px;}
.cta-copy ul{margin-top:28px;display:grid;gap:14px;}
.cta-copy ul li{position:relative;padding-left:24px;font-size:15px;color:rgba(255,255,255,.86);}
.cta-copy ul li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--lime);}
.lead-form{background:#fff;border-radius:var(--r-card);padding:34px;box-shadow:var(--sh-3);}
.lead-form__row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.02em;}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:var(--r-input);border:1px solid var(--line);background:#FBFCF9;font-size:15px;line-height:1.6;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green);background:#fff;box-shadow:0 0 0 3px rgba(13,68,55,.10);}
.field input::placeholder,.field textarea::placeholder{color:#9AA6A0;}
.checkline{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;font-size:13px;color:var(--muted);line-height:1.7;}
.checkline input{width:16px;height:16px;margin-top:4px;flex-shrink:0;accent-color:var(--green);}
.checkline a{color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:3px;}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.7;}
.form-msg{margin-top:14px;font-size:14px;font-weight:700;color:var(--green);display:none;}
.form-msg.is-error{color:var(--orange);}
.form-msg.is-show{display:block;}
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:80px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:56px;}
.footer-brand .brand__mark{background:rgba(199,240,74,.14);border:1px solid rgba(199,240,74,.35);}
.footer-brand .brand__text b{color:#fff;}
.footer-brand .brand__text span{color:rgba(255,255,255,.45);}
.footer-brand p{margin-top:20px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.60);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--lime);}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.48);}
.footer-bottom a{color:rgba(255,255,255,.48);}
.footer-bottom a:hover{color:var(--lime);}
@media (max-width:1439px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .header__search{display:none;}
  .hero__title{font-size:38px;}
  .news-grid{grid-template-columns:repeat(3,1fr);}
  .plans{grid-template-columns:1fr;}
  .stats__grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:1023px){
  .nav{display:none;}
  .header__login{display:none;}
  .nav-toggle{display:grid;}
  .section{padding:80px 0;}
  .hero__inner{grid-template-columns:1fr;gap:44px;min-height:0;padding-top:56px;padding-bottom:64px;}
  .hero__title{font-size:34px;}
  .hero__visual{order:-1;}
  .ask-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .section-head h2{font-size:26px;}
  .hero__title{font-size:30px;line-height:1.35;}
  .hero__sub{font-size:16px;}
  .hero__actions .btn{width:100%;}
  .news-grid{grid-template-columns:1fr;}
  .news-card.is-feature{grid-column:span 1;}
  .stats__grid{grid-template-columns:1fr;}
  .stat__num{font-size:38px;}
  .lead-form{padding:24px;}
  .lead-form__row{grid-template-columns:1fr;gap:0;}
  .faq-item summary{padding:20px 20px;font-size:16px;}
  .faq-item__ans{padding:0 20px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-copy h2{font-size:26px;}
  .stats__head h2{font-size:26px;}
}
@media (max-width:520px){
  .brand__text span{display:none;}
  .hero__trust{gap:10px;}
  .hero__trust li{font-size:13px;}
}

/* roulang page: article */
:root{
  --brand:#0D4437;
  --brand-deep:#0B1B16;
  --lime:#C7F04A;
  --orange:#FF6A2B;
  --bg:#F6F6F1;
  --card:#FFFFFF;
  --ink:#16211D;
  --muted:#5C6A64;
  --line:#E4E7E0;
  --weak:#EEF1E9;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,27,22,.06);
  --sh-2:0 12px 32px -12px rgba(11,27,22,.20);
  --sh-3:0 32px 64px -24px rgba(11,27,22,.35);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::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","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35}
p{margin:0}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,246,241,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:36px;height:36px;border-radius:12px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:var(--sh-1);
}
.brand__mark svg{width:22px;height:22px}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text b{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand__text span{font-size:12px;color:var(--muted);letter-spacing:1px}
.nav{display:flex;align-items:center;gap:22px}
.nav a{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;font-weight:500;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav a:hover{color:var(--brand)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.is-active{color:var(--brand);font-weight:700}
.nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{
  display:flex;align-items:center;gap:8px;
  background:var(--weak);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:0 14px;height:40px;width:204px;
  transition:border-color var(--t),background-color var(--t);
}
.search:focus-within{border-color:var(--brand);background:#fff}
.search i{font-size:13px;color:var(--muted)}
.search input{
  border:0;background:transparent;outline:none;font-size:14px;width:100%;
}
.search input::placeholder{color:#8A968F}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;transition:border-color var(--t),background-color var(--t);
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle i{font-size:16px;color:var(--brand)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;cursor:pointer;border:1.5px solid transparent;
  transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn--primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px -12px rgba(255,106,43,.9)}
.btn--primary:hover{background:#ef5c1c;color:#fff}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn--ghost:hover{background:rgba(13,68,55,.08)}
.btn--light{background:#fff;color:var(--brand)}
.btn--light:hover{background:var(--lime);color:var(--brand-deep)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--link{
  height:auto;padding:0;border:0;background:transparent;color:var(--brand);
  font-weight:700;border-radius:0;
}
.btn--link i{transition:transform var(--t)}
.btn--link:hover{color:var(--orange)}
.btn--link:hover i{transform:translateX(4px)}

/* ---------- hero ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(180deg,rgba(11,27,22,.93),rgba(13,68,55,.95)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.article-hero .container{position:relative;z-index:2}
.hero-inner{padding:60px 0 56px;max-width:900px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(199,240,74,.16);color:var(--lime);
  border:1px solid rgba(199,240,74,.35);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);
}
.hero-title{
  font-size:44px;line-height:1.25;margin:22px 0 18px;letter-spacing:.4px;
  text-shadow:0 2px 20px rgba(0,0,0,.25);
}
.hero-lead{
  font-size:16px;line-height:1.9;color:rgba(255,255,255,.82);max-width:760px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:26px;font-size:14px;color:rgba(255,255,255,.75);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--lime);font-size:13px}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:20px 0 0;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B6C0B9}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ---------- main layout ---------- */
.main-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 268px;
  gap:52px;align-items:start;padding:44px 0 96px;
}
.article-shell{min-width:0}
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:#26322D}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:26px;color:var(--brand);
  margin:44px 0 16px;padding-left:16px;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:8px;height:18px;
  border-radius:2px;background:var(--lime);
}
.article-body h3{font-size:20px;color:var(--brand);margin:32px 0 12px}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:6px}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:8px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  border-radius:50%;background:var(--lime);border:1px solid #A8CE2C;
}
.article-body ol{counter-reset:cnt}
.article-body ol li{counter-increment:cnt}
.article-body ol li::before{
  content:counter(cnt);position:absolute;left:0;top:.15em;
  font-size:13px;font-weight:700;color:var(--brand);
  width:18px;height:18px;line-height:18px;text-align:center;
  background:var(--weak);border-radius:6px;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--weak);
  border-left:4px solid var(--brand);border-radius:0 var(--r-input) var(--r-input) 0;
  color:#33413B;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px 0;box-shadow:var(--sh-1)}
.article-body figure{margin:26px 0}
.article-body figcaption{
  font-size:13px;color:var(--muted);text-align:center;margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-input);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body thead th{background:var(--weak);color:var(--brand);font-weight:700}
.article-body tbody tr:nth-child(even){background:#FAFBF7}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body strong{color:var(--brand);font-weight:700}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(13,68,55,.3)}
.article-body a:hover{color:var(--orange);border-bottom-color:rgba(255,106,43,.5)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- toc ---------- */
.toc{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);
}
.toc h4{
  font-size:14px;color:var(--brand);letter-spacing:1px;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.toc h4::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}
.toc-list{display:flex;flex-direction:column}
.toc-list a{
  font-size:14px;color:var(--muted);padding:8px 0 8px 12px;
  border-left:2px solid var(--line);line-height:1.6;
  transition:color var(--t),border-color var(--t),padding-left var(--t);
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--brand)}
.toc-list a.toc__sub{padding-left:24px;font-size:13px}
.toc-note{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ---------- tags ---------- */
.tag-block{
  max-width:760px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
}
.tag-block h4{font-size:15px;color:var(--brand);margin-bottom:14px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
  background:rgba(13,68,55,.08);color:var(--brand);
  transition:background-color var(--t),color var(--t);
}
.tag:hover{background:var(--brand);color:#fff}

/* ---------- section headings ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;
}
.sec-head h2{
  font-size:32px;line-height:1.35;position:relative;padding-bottom:12px;
}
.sec-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:48px;height:3px;
  border-radius:3px;background:var(--lime);
}
.sec-head p{font-size:15px;color:var(--muted);max-width:560px;margin-top:10px}

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--weak)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.card:hover .card__media img{transform:scale(1.03)}
.card__badge{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:var(--r-pill);
}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:19px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card__title{color:var(--brand)}
.card__desc{
  font-size:15px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);padding-top:12px;border-top:1px solid var(--line);
}
.card__foot i{color:var(--brand);transition:transform var(--t)}
.card:hover .card__foot i{transform:translateX(4px)}

/* ---------- related ---------- */
.related{padding:0 0 8px;border-top:1px solid var(--line);margin-top:40px;padding-top:44px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}

/* ---------- back band ---------- */
.back-band{
  margin-top:44px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
}
.back-band p{font-size:15px;color:var(--muted);margin-right:auto}

/* ---------- cta ---------- */
.cta-band{
  background:
    linear-gradient(180deg,rgba(11,27,22,.94),rgba(13,68,55,.96)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#fff;padding:88px 0;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:52px;align-items:start}
.cta-copy h2{font-size:32px;line-height:1.35;margin-bottom:16px}
.cta-copy h2 em{font-style:normal;color:var(--lime)}
.cta-copy p{font-size:16px;color:rgba(255,255,255,.8);max-width:520px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.88)}
.cta-points i{color:var(--lime);margin-top:6px;font-size:13px}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:28px 26px;
  box-shadow:var(--sh-3);color:var(--ink);
}
.form-card h3{font-size:20px;color:var(--brand);margin-bottom:6px}
.form-card > p{font-size:14px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  padding:11px 14px;font-size:15px;background:#FDFDFB;outline:none;
  transition:border-color var(--t),background-color var(--t);
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);background:#fff}
.field textarea{resize:vertical;min-height:88px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7}
.check input{margin-top:4px;accent-color:var(--brand)}
.check a{color:var(--brand);border-bottom:1px solid rgba(13,68,55,.3)}
.form-card .btn{width:100%;margin-top:18px;height:48px}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;min-height:20px}
.form-note.is-ok{color:var(--brand);font-weight:600}
.privacy-note{font-size:13px;color:rgba(255,255,255,.62);margin-top:16px;line-height:1.7}

/* ---------- empty ---------- */
.empty-state{
  max-width:760px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-card);padding:56px 30px;text-align:center;
}
.empty-state i{font-size:28px;color:var(--brand);opacity:.5}
.empty-state h3{font-size:20px;margin:16px 0 8px;color:var(--brand)}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:22px}

/* ---------- progress ---------- */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--lime),var(--orange));
  transition:width 80ms linear;
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#C9D6D1;padding:72px 0 28px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(201,214,209,.78);max-width:360px}
.site-footer .brand__text b{color:#fff}
.site-footer .brand__text span{color:rgba(201,214,209,.7)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14px;color:rgba(201,214,209,.78)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:rgba(201,214,209,.62);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .main-wrap{grid-template-columns:1fr;gap:0;padding:36px 0 80px}
  .toc{display:none}
  .cta-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:1023px){
  .header-inner{height:62px;gap:12px}
  .search{display:none}
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 24px 16px;display:none;box-shadow:var(--sh-2);
  }
  .nav.is-open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav a:last-child{border-bottom:0}
  .nav a::after{display:none}
  .hero-inner{padding:44px 0 44px}
  .hero-title{font-size:34px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:64px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{font-size:16px}
  .article-hero{padding:0}
  .hero-title{font-size:28px;line-height:1.35}
  .hero-lead{font-size:15px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .sec-head h2{font-size:26px}
  .related-grid{grid-template-columns:1fr}
  .cta-copy h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr}
  .back-band{padding:20px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .brand__text span{display:none}
  .hero-title{font-size:25px}
  .field-row{grid-template-columns:1fr}
  .btn{height:48px}
  .btn--sm{height:42px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --brand:#0D4437;
  --brand-dark:#0A372C;
  --brand-050:rgba(13,68,55,.08);
  --brand-08:rgba(13,68,55,.08);
  --lime:#C7F04A;
  --orange:#FF6A2B;
  --orange-dark:#E85A1E;
  --bg:#F6F6F1;
  --card:#FFFFFF;
  --dark:#0B1B16;
  --ink:#16211D;
  --muted:#5C6A64;
  --line:#E4E7E0;
  --soft:#EEF1E9;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,27,22,.06);
  --sh-2:0 12px 32px -12px rgba(11,27,22,.20);
  --sh-3:0 32px 64px -24px rgba(11,27,22,.35);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --t-slow:300ms cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:inherit;text-decoration:none;background-color:transparent;}
a:hover{color:var(--brand);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px;}
::selection{background:var(--lime);color:var(--dark);}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.sect{padding:96px 0 0;}
.sect:last-of-type{padding-bottom:96px;}
.sect--soft{background:var(--soft);margin-top:96px;padding:88px 0;}
.sect--dark{background:var(--dark);margin-top:96px;padding:88px 0;}
.sect--pad{padding:72px 0 0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,246,241,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand__mark svg{width:22px;height:22px;display:block;}
.brand__text{display:flex;flex-direction:column;line-height:1.18;}
.brand__text b{font-size:16.5px;font-weight:800;letter-spacing:.01em;color:var(--ink);}
.brand__text span{font-size:11.5px;color:var(--muted);letter-spacing:.12em;}

.nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav a{
  position:relative;display:inline-block;
  padding:9px 13px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:color var(--t),background var(--t);
}
.nav a:hover{color:var(--brand);background:var(--brand-050);}
.nav a.is-active{color:var(--brand);font-weight:700;}
.nav a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:3px;
  border-radius:3px;background:var(--lime);
}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search{
  display:flex;align-items:center;gap:6px;
  height:40px;padding:0 5px 0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color var(--t),box-shadow var(--t);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-050);}
.search input{
  width:146px;border:0;outline:0;background:transparent;
  font-size:14px;line-height:1.5;color:var(--ink);
}
.search input::placeholder{color:#9AA5A0;}
.search button{
  width:30px;height:30px;border:0;border-radius:50%;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  transition:background var(--t);
}
.search button:hover{background:var(--brand-dark);}
.search button svg{width:15px;height:15px;}

.link-login{font-size:14px;color:var(--muted);transition:color var(--t);}
.link-login:hover{color:var(--brand);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  border:1.5px solid transparent;font-size:15px;font-weight:600;
  white-space:nowrap;line-height:1;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn svg{width:16px;height:16px;transition:transform var(--t);}
.btn--primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px -10px rgba(255,106,43,.9);}
.btn--primary:hover{background:var(--orange-dark);color:#fff;}
.btn--primary:hover svg{transform:translateX(4px);}
.btn--ghost{background:transparent;color:var(--brand);border-color:rgba(13,68,55,.5);}
.btn--ghost:hover{background:var(--brand-050);color:var(--brand);}
.btn--light{background:#fff;color:var(--brand);}
.btn--light:hover{background:#fff;color:var(--brand-dark);}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--outline-light:hover{background:rgba(255,255,255,.10);color:#fff;}
.btn--sm{height:38px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.btn:active{transform:translateY(1px);}

.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:12px;background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.drawer.is-open{display:block;animation:drawerIn 180ms cubic-bezier(.2,.7,.3,1);}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:none;}}
.drawer-inner{padding:18px 0 26px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;font-size:16px;color:var(--ink);
  transition:background var(--t),color var(--t);
}
.drawer-nav a:hover{background:var(--soft);color:var(--brand);}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand);font-weight:700;}
.drawer-search{display:flex;gap:10px;margin-bottom:14px;}
.drawer-search input{
  flex:1;height:44px;padding:0 16px;border:1px solid var(--line);
  border-radius:var(--r-input);background:#fff;outline:0;font-size:15px;
}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-050);}

/* ============ 面包屑 ============ */
.crumb-bar{padding:20px 0 0;}
.crumb{font-size:13px;color:var(--muted);line-height:1.7;}
.crumb a{transition:color var(--t);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{margin:0 8px;color:#B9C0BA;}
.crumb .current{color:var(--brand);font-weight:600;}

/* ============ Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;margin-top:18px;border-radius:24px;
  background:var(--dark) url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(11,27,22,.94) 0%,rgba(11,27,22,.86) 42%,rgba(11,27,22,.52) 100%);
}
.cat-hero__grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(199,240,74,.075) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(199,240,74,.075) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(120deg,#000 0%,transparent 78%);
  -webkit-mask-image:linear-gradient(120deg,#000 0%,transparent 78%);
}
.cat-hero__inner{position:relative;padding:62px 56px 66px;max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(199,240,74,.42);background:rgba(199,240,74,.10);
  font-size:12.5px;letter-spacing:.08em;color:var(--lime);
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block;}
.cat-hero h1{
  margin:20px 0 16px;font-size:44px;line-height:1.25;font-weight:800;
  letter-spacing:-.01em;color:#fff;
}
.cat-hero__lead{
  max-width:640px;font-size:17px;line-height:1.85;
  color:rgba(255,255,255,.78);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-tags span{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:rgba(255,255,255,.72);letter-spacing:.02em;
}
.hero-tags span::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 4px rgba(199,240,74,.16);
}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;}
.sec-head h2{
  font-size:32px;line-height:1.35;font-weight:800;letter-spacing:-.01em;color:var(--ink);
}
.sec-head p{margin-top:10px;font-size:15.5px;line-height:1.8;color:var(--muted);max-width:720px;}
.sec-head .arrow-link{flex:0 0 auto;margin-bottom:6px;}
.sec-head--light h2{color:#fff;}
.sec-head--light p{color:rgba(255,255,255,.66);}

.arrow-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--brand);
  transition:color var(--t);
}
.arrow-link svg{width:15px;height:15px;transition:transform var(--t);}
.arrow-link:hover svg{transform:translateX(4px);}

/* ============ 分类布局：锚点列 + 卡片列表 ============ */
.cat-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:40px;align-items:start;}
.cat-side{
  position:sticky;top:94px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--muted);
  margin-bottom:12px;text-transform:uppercase;
}
.cat-side ul{margin-bottom:22px;}
.cat-side ul:last-child{margin-bottom:0;}
.cat-side li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 11px;border-radius:10px;font-size:14.5px;color:var(--ink);
  transition:background var(--t),color var(--t);
}
.cat-side li a:hover{background:var(--soft);color:var(--brand);}
.cat-side li a.is-current{background:var(--brand-050);color:var(--brand);font-weight:700;}
.cat-side li a .count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.cat-side li a.is-current .count{color:var(--brand);}
.side-divider{height:1px;background:var(--line);margin:0 0 20px;}

.filter-group{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  font-size:13px;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;}
.side-note{
  margin-top:22px;padding:16px;border-radius:14px;background:var(--soft);
  font-size:13.5px;line-height:1.75;color:var(--muted);
}
.side-note b{display:block;font-size:14px;color:var(--brand);margin-bottom:6px;}

.cat-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.pcard{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.pcard__media{aspect-ratio:16/9;background:var(--soft);overflow:hidden;}
.pcard__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow);}
.pcard:hover .pcard__media img{transform:scale(1.035);}
.pcard__body{display:flex;flex-direction:column;gap:12px;flex:1;padding:20px 22px 22px;}
.pcard__badges{display:flex;flex-wrap:wrap;gap:8px;}
.badge{
  font-size:12px;font-weight:600;padding:3px 11px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand);
}
.spec{
  font-size:12px;padding:3px 11px;border-radius:var(--r-pill);
  background:var(--soft);color:var(--muted);font-variant-numeric:tabular-nums;
}
.pcard h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--ink);}
.pcard p{font-size:15px;line-height:1.78;color:var(--muted);}
.pcard__foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted);
}

/* ============ 场景卡片 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.scene{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.scene:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.scene__media{aspect-ratio:4/3;background:var(--soft);overflow:hidden;}
.scene__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow);}
.scene:hover .scene__media img{transform:scale(1.035);}
.scene__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene__idx{
  font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--brand);
  font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:8px;
}
.scene__idx::after{content:"";width:22px;height:2px;border-radius:2px;background:var(--lime);}
.scene h3{font-size:17px;line-height:1.5;font-weight:700;}
.scene p{font-size:14px;line-height:1.78;color:var(--muted);}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);}
.flow__item{
  position:relative;padding:30px 26px 30px 0;
  border-right:1px solid var(--line);
}
.flow__item:last-child{border-right:0;padding-right:0;}
.flow__item:not(:first-child){padding-left:26px;}
.flow__num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--brand);font-variant-numeric:tabular-nums;
  padding:2px 10px;border-radius:var(--r-pill);background:rgba(199,240,74,.36);
  margin-bottom:16px;
}
.flow__item h3{font-size:18px;line-height:1.5;font-weight:700;margin-bottom:10px;}
.flow__item p{font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ============ 数据区 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.stat{
  padding:28px 24px;border-radius:var(--r-card);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.10);
  transition:background var(--t),border-color var(--t);
}
.stat:hover{background:rgba(255,255,255,.075);border-color:rgba(199,240,74,.35);}
.stat__num{
  display:flex;align-items:baseline;gap:6px;
  font-size:44px;line-height:1.1;font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat__num small{font-size:15px;font-weight:600;color:var(--lime);letter-spacing:0;}
.stat__label{margin-top:12px;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.66);}

/* ============ FAQ ============ */
.faq{max-width:880px;}
.faq details{
  border-bottom:1px solid var(--line);
  background:transparent;
  transition:background var(--t);
}
.faq details:first-of-type{border-top:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;
  font-size:17px;line-height:1.6;font-weight:600;color:var(--brand);
  transition:color var(--t);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand-dark);}
.faq summary .caret{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.faq summary .caret svg{width:12px;height:12px;stroke:var(--brand);}
.faq details[open] summary .caret{transform:rotate(180deg);border-color:var(--brand);background:var(--brand-050);}
.faq details p{
  padding:0 46px 24px 4px;
  font-size:15px;line-height:1.85;color:var(--muted);
}

/* ============ CTA 与表单 ============ */
.cta-card{
  display:grid;grid-template-columns:0.92fr 1.08fr;gap:44px;
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:44px;box-shadow:var(--sh-2);
}
.cta-copy h2{font-size:30px;line-height:1.4;font-weight:800;letter-spacing:-.01em;}
.cta-copy > p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--muted);}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{
  position:relative;padding-left:22px;
  font-size:14.5px;line-height:1.75;color:var(--ink);
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 4px rgba(199,240,74,.22);
}
.cta-meta{
  margin-top:26px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.75;color:var(--muted);
}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;font-size:15px;line-height:1.6;color:var(--ink);
  outline:0;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:96px;resize:vertical;}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%235C6A64' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:38px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-050);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA5A0;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:4px;}
.check-row input[type="checkbox"]{
  width:17px;height:17px;margin-top:4px;flex:0 0 auto;
  accent-color:var(--brand);cursor:pointer;
}
.check-row label{font-size:13px;line-height:1.75;color:var(--muted);cursor:pointer;}
.privacy-note{
  margin-top:14px;font-size:13px;line-height:1.75;color:var(--muted);
}
.form-actions{margin-top:20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-actions .btn{min-width:172px;}
.form-tip{font-size:13px;color:var(--muted);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:0;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand__mark{background:rgba(199,240,74,.12);}
.footer-brand .brand__text b{color:#fff;}
.footer-brand .brand__text span{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.62);}
.footer-col a{color:rgba(255,255,255,.62);transition:color var(--t);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1180px;}
}

@media (max-width:1199px){
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow__item:nth-child(2){border-right:0;padding-right:0;}
  .flow__item:nth-child(3),
  .flow__item:nth-child(4){border-top:1px solid var(--line);}
  .flow__item:nth-child(3){padding-left:0;}
}

@media (max-width:1023px){
  body{font-size:16.5px;}
  .nav{display:none;}
  .search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;}
  .sect{padding:72px 0 0;}
  .sect--soft,.sect--dark{margin-top:72px;padding:64px 0;}
  .cat-layout{grid-template-columns:1fr;gap:28px;}
  .cat-side{position:static;}
  .cat-hero__inner{padding:52px 36px 56px;}
  .cat-hero h1{font-size:36px;}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:none;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:20px;padding-right:20px;}
  .sect{padding:56px 0 0;}
  .sect--soft,.sect--dark{margin-top:56px;padding:52px 0;}
  .crumb-bar{padding-top:16px;}
  .cat-hero{margin-top:14px;border-radius:18px;}
  .cat-hero__inner{padding:40px 22px 44px;}
  .cat-hero h1{font-size:30px;line-height:1.35;}
  .cat-hero__lead{font-size:15.5px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 160px;}
  .hero-tags{gap:14px 22px;margin-top:26px;padding-top:20px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px;}
  .sec-head h2{font-size:24px;}
  .sec-head p{font-size:14.5px;}
  .cat-cards{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .stat{padding:22px 18px;}
  .stat__num{font-size:34px;}
  .flow{grid-template-columns:1fr;}
  .flow__item{padding:24px 0;border-right:0;border-bottom:1px solid var(--line);}
  .flow__item:not(:first-child){padding-left:0;}
  .flow__item:last-child{border-bottom:0;}
  .flow__item:nth-child(3),
  .flow__item:nth-child(4){border-top:0;}
  .faq summary{font-size:15.5px;padding:18px 2px;gap:14px;}
  .faq details p{padding:0 34px 20px 2px;font-size:14.5px;}
  .cta-card{padding:26px 20px;border-radius:18px;}
  .cta-copy h2{font-size:22px;}
  .form-grid{grid-template-columns:1fr;}
  .btn{height:48px;}
  .btn--sm{height:40px;}
  .form-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding:56px 0 24px;}
}

/* roulang page: category2 */
:root{
  --brand:#0D4437;
  --brand-dark:#083027;
  --lime:#C7F04A;
  --orange:#FF6A2B;
  --orange-dark:#E85A1D;
  --bg:#F6F6F1;
  --card:#FFFFFF;
  --dark:#0B1B16;
  --ink:#16211D;
  --ink-2:#5C6A64;
  --line:#E4E7E0;
  --soft:#EEF1E9;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,27,22,.06);
  --sh-2:0 12px 32px -12px rgba(11,27,22,.20);
  --sh-3:0 32px 64px -24px rgba(11,27,22,.35);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --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);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35;letter-spacing:-.01em;color:var(--ink)}
button,input,select,textarea{font-family:inherit;font-size:100%}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand__mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand);
  display:grid;place-items:center;flex:none;box-shadow:var(--sh-1);
}
.brand__mark svg{width:23px;height:23px;display:block}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text b{font-size:17px;font-weight:800;color:var(--brand);letter-spacing:.01em}
.brand__text span{font-size:11px;color:var(--ink-2);letter-spacing:.18em;margin-top:2px}
.nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav a{
  position:relative;padding:11px 13px;font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;border-radius:10px;transition:color var(--t),background var(--t);
}
.nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav a:hover{color:var(--brand);background:rgba(13,68,55,.04)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.is-active{color:var(--brand);font-weight:700}
.nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.search{position:relative;display:flex;align-items:center}
.search input{
  width:172px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--soft);padding:0 40px 0 16px;font-size:14px;color:var(--ink);
  transition:width var(--t),border-color var(--t),background var(--t),box-shadow var(--t);
}
.search input::placeholder{color:#8A968F}
.search input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(13,68,55,.10)}
.search__btn{
  position:absolute;right:5px;width:30px;height:30px;border:0;border-radius:50%;
  background:transparent;color:var(--ink-2);cursor:pointer;display:grid;place-items:center;
  transition:background var(--t),color var(--t);
}
.search__btn:hover{background:rgba(13,68,55,.08);color:var(--brand)}
.link-login{font-size:15px;color:var(--ink-2);white-space:nowrap}
.link-login:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;color:var(--brand);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:rgba(13,68,55,.35)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1.5px solid transparent;cursor:pointer;background:transparent;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn--primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px -12px rgba(255,106,43,.9)}
.btn--primary:hover{background:var(--orange-dark);color:#fff}
.btn--primary:active{background:#D24F16}
.btn--ghost{border-color:var(--brand);color:var(--brand)}
.btn--ghost:hover{background:rgba(13,68,55,.08);color:var(--brand-dark)}
.btn--light{background:#fff;color:var(--brand)}
.btn--light:hover{background:var(--lime);color:var(--brand-dark)}
.btn--onDark{border-color:rgba(255,255,255,.45);color:#fff}
.btn--onDark:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--block{width:100%;height:48px}
.btn--sm{height:38px;padding:0 18px;font-size:14px}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--dark);color:#fff}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,27,22,.94) 0%,rgba(11,27,22,.72) 46%,rgba(11,27,22,.34) 100%);
}
.page-hero__inner{position:relative;z-index:2;padding:56px 20px 64px}
.page-hero__inner h1{
  color:#fff;font-size:clamp(28px,4.2vw,44px);line-height:1.25;max-width:840px;margin:20px 0 16px;
}
.page-hero__lead{max-width:640px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);margin-bottom:28px}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.crumbs{font-size:13px;color:rgba(255,255,255,.62);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs a{color:rgba(255,255,255,.72)}
.crumbs a:hover{color:var(--lime)}
.crumbs span{opacity:.5}
.crumbs b{color:var(--lime);font-weight:600}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{
  font-size:14px;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.05);
}
.hero-tags li::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lime);margin-right:8px;vertical-align:2px}

/* ---------- spec bar ---------- */
.spec-bar{background:var(--dark);color:#fff;padding:0 0 56px;position:relative}
.spec-bar__grid{border-top:1px solid rgba(255,255,255,.14);padding-top:32px}
.spec-item{padding:10px 6px 10px 18px;border-left:2px solid rgba(199,240,74,.5)}
.spec-item b{
  display:block;font-size:clamp(26px,3.4vw,34px);font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2;
}
.spec-item span{display:block;font-size:14px;color:rgba(255,255,255,.62);margin-top:6px;line-height:1.6}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--soft{background:var(--soft)}
.section--white{background:#fff}
.section-head{max-width:780px;margin-bottom:48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--lime)}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;margin:14px 0 14px}
.section-head p{color:var(--ink-2);font-size:17px}

/* ---------- z rows ---------- */
.zrow{
  display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line);
}
.zrow:first-of-type{border-top:0;padding-top:0}
.zrow__media{
  margin:0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);background:#fff;
  transition:box-shadow var(--t),transform var(--t);
}
.zrow__media:hover{box-shadow:var(--sh-2)}
.zrow__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.zrow__body h3{font-size:22px;line-height:1.5;margin:14px 0 12px}
.zrow__body p{color:var(--ink-2);font-size:16px}
.badge{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(13,68,55,.08);color:var(--brand);
}
.badge--soft{background:var(--soft);color:var(--ink-2);font-weight:600}
.checklist{margin:18px 0 22px;display:grid;gap:10px}
.checklist li{position:relative;padding-left:22px;font-size:15px;color:var(--ink);line-height:1.7}
.checklist li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--lime);box-shadow:0 0 0 3px rgba(199,240,74,.22);
}
.textlink{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand);
}
.textlink span{transition:transform var(--t);display:inline-block}
.textlink:hover span{transform:translateX(4px)}

/* ---------- cards ---------- */
.pcard{
  display:flex;flex-direction:column;gap:12px;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25)}
.pcard__no{
  font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--lime);
  background:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:30px;border-radius:9px;font-variant-numeric:tabular-nums;
}
.pcard h3{font-size:19px;line-height:1.5}
.pcard p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0}
.pcard__meta{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px;padding-top:6px}
.grid-gap{row-gap:24px}

/* ---------- table ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:8px 24px 20px;box-shadow:var(--sh-1);overflow:hidden;
}
table.spec{width:100%;border-collapse:collapse;font-size:15px}
table.spec caption{text-align:left;font-size:14px;color:var(--ink-2);padding:18px 0 10px}
table.spec th{
  text-align:left;font-size:13px;letter-spacing:.06em;color:var(--ink-2);
  font-weight:700;padding:14px 12px;border-bottom:1.5px solid var(--line);white-space:nowrap;
}
table.spec td{padding:16px 12px;border-bottom:1px solid var(--line);color:var(--ink);font-variant-numeric:tabular-nums}
table.spec tbody tr:nth-child(even){background:#FBFBF7}
table.spec tbody tr:hover{background:rgba(199,240,74,.14)}
table.spec td:first-child{font-weight:700;color:var(--brand)}

/* ---------- steps ---------- */
.steps{display:grid;gap:24px;counter-reset:st}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px 26px;box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t)}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step__no{
  counter-increment:st;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--brand);
  display:inline-flex;align-items:center;gap:8px;
}
.step__no::before{content:"0" counter(st);font-variant-numeric:tabular-nums}
.step h3{font-size:19px;margin:12px 0 10px}
.step p{font-size:15px;color:var(--ink-2);margin:0}

/* ---------- faq ---------- */
.faq{max-width:920px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;position:relative;padding:22px 48px 22px 0;
  font-size:17px;font-weight:700;color:var(--brand);transition:color var(--t);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand-dark)}
.faq summary::after{
  content:"";position:absolute;right:14px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform var(--t);
}
.faq details[open] summary::after{transform:translateY(-25%) rotate(-135deg)}
.faq__a{padding:0 48px 24px 0;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- cta ---------- */
.cta-band{background:var(--dark);color:#fff;border-radius:24px;padding:44px 24px;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(199,240,74,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(199,240,74,.06) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.cta-band__inner{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.35;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.76);font-size:16px;margin-bottom:20px}
.cta-points{display:grid;gap:10px;margin-bottom:26px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:2px;background:var(--lime)}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px 22px;box-shadow:var(--sh-3);color:var(--ink)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--ink-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  padding:11px 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{resize:vertical;min-height:88px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA49E}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(13,68,55,.12);
}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--ink-2);margin:6px 0 18px}
.check input{width:16px;height:16px;margin-top:4px;flex:none;accent-color:var(--brand)}
.privacy-note{font-size:13px;line-height:1.7;color:var(--ink-2);margin-top:14px}
.on-dark .privacy-note{color:rgba(255,255,255,.6)}
.on-dark .privacy-note a{color:var(--lime)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
.footer-brand .brand__text b{color:#fff}
.footer-brand .brand__text span{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:16px;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media(min-width:768px){
  .page-hero__inner{padding:72px 24px 80px}
  .cta-band{padding:56px 48px}
  .form-card{padding:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:900px){
  .zrow{grid-template-columns:1.05fr 1fr;gap:64px;padding:52px 0}
  .zrow--reverse .zrow__media{order:2}
  .zrow--reverse .zrow__body{order:1}
}
@media(min-width:1100px){
  .steps{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:1099px){
  .search input{width:150px}
  .nav a{padding:11px 10px;font-size:14px}
}
@media(max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:fixed;top:72px;left:0;right:0;margin:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 20px 20px;box-shadow:var(--sh-2);
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:opacity var(--t),transform var(--t);
    max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:13px 14px;font-size:16px;border-radius:12px;background:var(--soft)}
  .nav a::after{display:none}
  .nav a.is-active{background:rgba(199,240,74,.28)}
  .link-login{display:none}
}
@media(max-width:767px){
  body{font-size:16px;line-height:1.8}
  .header-inner{height:60px;gap:10px}
  .brand__text span{display:none}
  .brand__text b{font-size:16px}
  .brand__mark{width:34px;height:34px}
  .nav{top:60px;max-height:calc(100vh - 60px)}
  .search input{width:0;opacity:0;padding:0;border-color:transparent}
  .search.is-open input{width:170px;opacity:1;padding:0 40px 0 16px;border-color:var(--line)}
  .search.is-open{position:absolute;right:20px;top:50%;transform:translateY(-50%);z-index:5}
  .header-actions{position:relative;margin-left:auto}
  .btn--cta{padding:0 18px;height:40px;font-size:14px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .page-hero__inner h1{font-size:30px;line-height:1.35}
  .spec-bar{padding-bottom:40px}
  .spec-item{padding:8px 4px 8px 14px;margin-bottom:10px}
  .pcard{padding:22px}
  .table-wrap{padding:4px 16px 16px}
  table.spec,table.spec tbody,table.spec tr,table.spec td,table.spec th{display:block;width:100%}
  table.spec thead{display:none}
  table.spec caption{padding:18px 0 6px}
  table.spec tr{border-bottom:1px solid var(--line);padding:10px 0}
  table.spec tbody tr:nth-child(even){background:transparent}
  table.spec td{border:0;padding:6px 0;display:flex;gap:14px;align-items:baseline}
  table.spec td::before{
    content:attr(data-label);flex:none;width:88px;font-size:12px;font-weight:700;
    color:var(--ink-2);letter-spacing:.06em;
  }
  table.spec td:first-child{border-bottom:1px dashed var(--line);padding-bottom:10px;margin-bottom:4px;font-size:16px}
  .footer-grid{gap:28px}
}
@media(max-width:520px){
  .page-hero__inner{padding:40px 20px 48px}
  .hero-tags li{font-size:13px;padding:6px 12px}
  .btn{width:100%}
  .btn--sm,.header-actions .btn{width:auto}
  .page-hero__actions .btn{width:100%}
  .faq summary{padding-right:40px;font-size:16px}
  .faq__a{padding-right:20px}
  .cta-band{border-radius:18px;padding:32px 20px}
}

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
  --brand:#0D4437;
  --brand-700:#093026;
  --brand-050:rgba(13,68,55,.08);
  --deep:#0B1B16;
  --lime:#C7F04A;
  --orange:#FF6A2B;
  --orange-dark:#E85816;
  --page:#F6F6F1;
  --card:#FFFFFF;
  --ink:#16211D;
  --muted:#5C6A64;
  --line:#E4E7E0;
  --weak:#EEF1E9;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,27,22,.06);
  --shadow-2:0 12px 32px -12px rgba(11,27,22,.20);
  --shadow-3:0 32px 64px -24px rgba(11,27,22,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --gutter:24px;
  --section-y:104px;
}

/* ===================== 基础重置 ===================== */
*,*::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","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--page);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease);}
a:hover{color:var(--orange);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
h2{font-size:32px;line-height:1.35;font-weight:700;letter-spacing:-.005em;}
h3{font-size:22px;line-height:1.5;font-weight:700;}
p{font-size:17px;line-height:1.85;}
strong{font-weight:700;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.skip-link{position:absolute;left:16px;top:-60px;background:var(--deep);color:#fff;padding:10px 18px;border-radius:8px;z-index:200;transition:top .2s var(--ease);}
.skip-link:focus{top:12px;color:#fff;}

/* ===================== 容器与板块 ===================== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
.section{padding:var(--section-y) 0;}
.section--tight{padding:72px 0;}
.section--weak{background:var(--weak);}
.section--deep{background:var(--deep);color:#EAF2EE;}
.section--deep h2,.section--deep h3{color:#fff;}

.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;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;
  background:var(--brand-050);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);}
.section--deep .eyebrow{background:rgba(199,240,74,.12);color:var(--lime);}
.section-head h2{margin-bottom:16px;}
.section-head p{color:var(--muted);}
.section--deep .section-head p{color:#A9BDB5;}
.lead{font-size:18px;color:var(--muted);}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:44px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn svg{width:16px;height:16px;flex:none;transition:transform .18s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn--primary{background:var(--orange);color:#fff;box-shadow:var(--shadow-1);}
.btn--primary:hover{background:var(--orange-dark);color:#fff;box-shadow:var(--shadow-2);}
.btn--ghost{background:transparent;color:var(--brand);border-color:rgba(13,68,55,.35);}
.btn--ghost:hover{background:var(--brand-050);color:var(--brand);border-color:var(--brand);}
.btn--light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.35);}
.btn--light:hover{background:rgba(255,255,255,.20);color:#fff;border-color:#fff;}
.btn--sm{height:38px;padding:0 18px;font-size:15px;}
.btn--block{width:100%;}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:16px;
  color:var(--brand);
}
.btn-link svg{width:16px;height:16px;transition:transform .18s var(--ease);}
.btn-link:hover svg{transform:translateX(4px);}

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(246,246,241,.92);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand__mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--lime);
  display:flex;align-items:center;justify-content:center;flex:none;
  box-shadow:var(--shadow-1);
}
.brand__mark svg{width:24px;height:24px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.brand__text span{font-size:11px;color:var(--muted);letter-spacing:.22em;font-weight:600;}
.nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav a{
  position:relative;
  padding:8px 12px;font-size:15.5px;font-weight:600;color:var(--muted);
  border-radius:8px;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--lime);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav a:hover{color:var(--brand);}
.nav a:hover::after{transform:scaleX(1);}
.nav a.is-active{color:var(--brand);}
.nav a.is-active::after{transform:scaleX(1);}
.header__actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search{
  display:flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  height:40px;padding:0 6px 0 16px;width:230px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-050);}
.search input{
  border:0;background:transparent;outline:none;width:100%;min-width:0;
  font-size:15px;color:var(--ink);height:100%;
}
.search input::placeholder{color:#9AA6A0;}
.search button{
  border:0;background:var(--brand-050);color:var(--brand);
  width:30px;height:30px;border-radius:50%;cursor:pointer;flex:none;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.search button:hover{background:var(--brand);color:#fff;}
.search button svg{width:15px;height:15px;}
.login-link{font-size:15px;font-weight:600;color:var(--muted);}
.login-link:hover{color:var(--brand);}
.menu-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:none;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s var(--ease);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* 移动端抽屉 */
.drawer{
  display:none;border-bottom:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow-2);
}
.drawer.is-open{display:block;}
.drawer .container{padding-top:18px;padding-bottom:22px;display:flex;flex-direction:column;gap:16px;}
.search--drawer{width:100%;}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__nav a{
  padding:13px 4px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer__nav a.is-active{color:var(--brand);}
.drawer__nav a.is-active::before{
  content:"";display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--lime);margin-right:10px;vertical-align:middle;
}

/* ===================== 面包屑 ===================== */
.breadcrumb{
  font-size:13px;color:rgba(255,255,255,.66);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:28px;
}
.breadcrumb a{color:rgba(255,255,255,.80);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--lime);}

/* ===================== Hero ===================== */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(115deg,rgba(11,27,22,.94) 0%,rgba(13,68,55,.88) 52%,rgba(11,27,22,.78) 100%),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;
  padding:56px 0 88px;
}
.hero h1{color:#fff;margin:20px 0 20px;}
.hero h1 em{font-style:normal;color:var(--lime);}
.hero__sub{font-size:18px;line-height:1.8;color:rgba(255,255,255,.82);max-width:560px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero__trust{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.16);
}
.hero__trust li{
  list-style:none;font-size:14.5px;color:rgba(255,255,255,.86);
  display:flex;align-items:center;gap:9px;
}
.hero__trust li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;
}
.hero__media{position:relative;}
.hero__media img{
  border-radius:20px;box-shadow:var(--shadow-3);
  aspect-ratio:4/3;object-fit:cover;width:100%;
}
.hero__badge{
  position:absolute;left:-14px;bottom:26px;
  background:#fff;color:var(--ink);border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow-2);
  display:flex;align-items:center;gap:12px;max-width:260px;
}
.hero__badge b{font-size:22px;color:var(--brand);font-variant-numeric:tabular-nums;display:block;line-height:1.2;}
.hero__badge span{font-size:13px;color:var(--muted);line-height:1.5;}
.hero__badge i{
  width:38px;height:38px;border-radius:12px;background:var(--brand-050);flex:none;
  display:flex;align-items:center;justify-content:center;font-style:normal;
  color:var(--brand);font-weight:800;font-size:13px;
}

/* ===================== 通用卡片 ===================== */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 28px;box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(13,68,55,.25);}
.card__icon{
  width:46px;height:46px;border-radius:14px;background:var(--brand-050);
  display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:20px;
}
.card__icon svg{width:22px;height:22px;}
.card h3{margin-bottom:12px;}
.card p{color:var(--muted);font-size:16px;}
.card__num{
  font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.16em;
  font-variant-numeric:tabular-nums;display:block;margin-bottom:16px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--brand-050);color:var(--brand);
}
.badge--neutral{background:var(--weak);color:var(--muted);}
.badge--lime{background:rgba(199,240,74,.28);color:var(--brand-700);}

/* 参数条 */
.spec-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;margin-top:40px;
}
.spec-bar__item{background:#fff;padding:26px 24px;}
.spec-bar__item b{
  display:block;font-size:32px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-.01em;
}
.spec-bar__item b small{font-size:16px;font-weight:700;margin-left:2px;}
.spec-bar__item span{font-size:14px;color:var(--muted);display:block;margin-top:8px;}

/* ===================== 时间轴 ===================== */
.timeline{list-style:none;position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:16px;bottom:34px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(13,68,55,.10));
}
.timeline__item{
  position:relative;display:grid;grid-template-columns:48px 1fr;gap:28px;
  padding-bottom:34px;
}
.timeline__item:last-child{padding-bottom:0;}
.timeline__marker{
  width:48px;height:48px;border-radius:50%;flex:none;
  background:var(--deep);color:var(--lime);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  border:4px solid var(--page);position:relative;z-index:2;
}
.section--weak .timeline__marker{border-color:var(--weak);}
.timeline__body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.timeline__body:hover{box-shadow:var(--shadow-2);border-color:rgba(13,68,55,.22);}
.timeline__body h3{margin-bottom:10px;}
.timeline__body p{color:var(--muted);font-size:16px;}
.dot-list{list-style:none;margin-top:16px;display:flex;flex-wrap:wrap;gap:10px 22px;}
.dot-list li{
  font-size:14.5px;color:var(--ink);display:flex;align-items:center;gap:9px;
}
.dot-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none;
}
.timeline__meta{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  background:var(--brand-050);border-radius:var(--radius-pill);
  padding:4px 12px;margin-bottom:14px;
}

/* ===================== 对比表 ===================== */
.table-wrap{
  margin-top:8px;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;background:#fff;box-shadow:var(--shadow-1);
}
.cap-table{width:100%;border-collapse:collapse;margin:0;font-size:15.5px;}
.cap-table caption{text-align:left;padding:22px 26px 6px;font-size:15px;color:var(--muted);}
.cap-table thead th{
  background:var(--deep);color:#fff;font-size:14.5px;font-weight:700;
  text-align:left;padding:16px 22px;white-space:nowrap;letter-spacing:.02em;
}
.cap-table tbody th{
  text-align:left;padding:20px 22px;font-size:16px;color:var(--ink);
  font-weight:700;background:#fff;border-top:1px solid var(--line);vertical-align:top;
}
.cap-table tbody th span{display:block;font-size:13px;color:var(--muted);font-weight:500;margin-top:4px;}
.cap-table tbody td{
  padding:20px 22px;border-top:1px solid var(--line);color:var(--muted);
  vertical-align:top;background:#fff;
}
.cap-table tbody tr:nth-child(even) th,
.cap-table tbody tr:nth-child(even) td{background:#FAFBF7;}
.cap-table tbody tr:hover th,
.cap-table tbody tr:hover td{background:rgba(199,240,74,.16);}
.cap-table td b{color:var(--ink);font-weight:700;}

/* ===================== 场景卡 ===================== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(13,68,55,.25);}
.scene-card img{aspect-ratio:16/9;object-fit:cover;width:100%;border-radius:0;}
.scene-card__body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.scene-card__body h3{font-size:19px;}
.scene-card__body p{color:var(--muted);font-size:15.5px;flex:1;}
.scene-card .badge{align-self:flex-start;}

/* ===================== FAQ ===================== */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:24px 52px 24px 0;position:relative;
  font-size:17px;font-weight:700;color:var(--brand);line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--orange);}
.faq-q::after{
  content:"";position:absolute;right:12px;top:50%;width:11px;height:11px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s var(--ease);
}
.faq-item.is-open .faq-q::after{transform:translateY(-30%) rotate(-135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a p{
  padding:0 52px 26px 0;color:var(--muted);font-size:15px;line-height:1.8;
}

/* ===================== CTA + 表单 ===================== */
.cta-band{
  background:
    linear-gradient(120deg,rgba(11,27,22,.96),rgba(13,68,55,.90)),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(199,240,74,.22),transparent 68%);
}
.cta-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;
}
.cta-copy h2{color:#fff;margin-bottom:18px;}
.cta-copy p{color:rgba(255,255,255,.80);}
.cta-points{list-style:none;margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{
  display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:rgba(255,255,255,.90);
}
.cta-points li::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);
  flex:none;margin-top:9px;
}
.form-card{
  background:#fff;color:var(--ink);
  border-radius:var(--radius-card);padding:34px 32px;
  box-shadow:var(--shadow-3);
}
.form-card h3{margin-bottom:6px;font-size:20px;}
.form-card .form-hint{font-size:14px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:12px 14px;background:#FCFDFB;color:var(--ink);outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{min-height:92px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-050);background:#fff;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.check{
  display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);
  line-height:1.7;margin:6px 0 18px;
}
.check input{width:16px;height:16px;margin-top:4px;flex:none;accent-color:var(--brand);}
.check a{color:var(--brand);text-decoration:underline;}
.form-status{
  display:none;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);
  background:var(--brand-050);border-radius:10px;padding:12px 14px;
}
.form-status.is-visible{display:block;}
.privacy-note{
  font-size:13px;color:var(--muted);line-height:1.7;margin-top:22px;
  max-width:760px;
}
.cta-band .privacy-note{color:rgba(255,255,255,.62);}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--deep);color:#B9C8C1;padding:76px 0 30px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand__text b{color:#fff;}
.footer-brand .brand__text span{color:#7E918A;}
.footer-brand p{margin-top:20px;font-size:14.5px;line-height:1.85;color:#93A69F;max-width:380px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px;}
.footer-col li,.footer-col a{font-size:14.5px;color:#93A69F;line-height:1.7;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:26px;font-size:13px;color:#738781;
}

/* ===================== 响应式 ===================== */
@media (max-width:1439px){
  :root{--container:1140px;}
}
@media (max-width:1023px){
  :root{--section-y:76px;--gutter:20px;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .nav{display:none;}
  .menu-toggle{display:flex;}
  .search{display:none;}
  .header__inner{height:64px;gap:16px;}
  .hero__inner{grid-template-columns:1fr;gap:40px;padding:36px 0 72px;}
  .hero__media{order:-1;}
  .hero__media img{aspect-ratio:16/9;}
  .hero__badge{left:16px;bottom:-18px;padding:12px 16px;}
  .spec-bar{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  :root{--section-y:60px;}
  body{font-size:16px;}
  h1{font-size:30px;line-height:1.35;}
  h2{font-size:25px;}
  h3{font-size:19px;}
  p{font-size:16px;}
  .section-head{margin-bottom:32px;}
  .brand__mark{width:34px;height:34px;border-radius:10px;}
  .brand__text b{font-size:15.5px;}
  .brand__text span{letter-spacing:.16em;}
  .login-link{display:none;}
  .hero__trust{gap:10px 20px;}
  .hero__badge{position:static;margin-top:16px;max-width:none;width:100%;}
  .spec-bar{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .timeline::before{left:19px;}
  .timeline__item{grid-template-columns:40px 1fr;gap:16px;}
  .timeline__marker{width:40px;height:40px;font-size:12.5px;}
  .timeline__body{padding:22px 20px;}
  .card{padding:24px 20px;}
  .form-card{padding:26px 20px;}
  .field-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:10px;}

  /* 对比表转卡片堆叠 */
  .table-wrap{border:0;box-shadow:none;background:transparent;overflow:visible;}
  .cap-table caption{padding:0 0 14px;font-size:14px;}
  .cap-table thead{display:none;}
  .cap-table,.cap-table tbody{display:block;width:100%;}
  .cap-table tbody tr{
    display:block;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-card);margin-bottom:16px;padding:8px 6px;
    box-shadow:var(--shadow-1);
  }
  .cap-table tbody th{
    display:block;background:#fff;border-top:0;padding:14px 16px 8px;font-size:17px;
  }
  .cap-table tbody th span{margin-top:2px;}
  .cap-table tbody td{
    display:flex;justify-content:space-between;align-items:flex-start;gap:18px;
    border-top:0;background:#fff;padding:9px 16px;text-align:right;font-size:15px;
  }
  .cap-table tbody td::before{
    content:attr(data-label);color:var(--muted);font-size:13px;font-weight:600;
    text-align:left;flex:none;
  }
  .cap-table tbody tr:nth-child(even) th,
  .cap-table tbody tr:nth-child(even) td,
  .cap-table tbody tr:hover th,
  .cap-table tbody tr:hover td{background:#fff;}
}
@media (max-width:519px){
  .hero__actions .btn{width:100%;}
  .btn{padding:0 20px;}
}

/* roulang page: category4 */
:root{
  --green:#0D4437;
  --green-deep:#0A3529;
  --lime:#C7F04A;
  --orange:#FF6A2B;
  --bg:#F6F6F1;
  --card:#FFFFFF;
  --dark:#0B1B16;
  --ink:#16211D;
  --ink-2:#5C6A64;
  --line:#E4E7E0;
  --weak:#EEF1E9;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,27,22,.06);
  --sh-2:0 12px 32px -12px rgba(11,27,22,.20);
  --sh-3:0 32px 64px -24px rgba(11,27,22,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease);}
a:hover{color:var(--green);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .6em;
  font-weight:700;
  color:var(--ink);
  line-height:1.35;
  letter-spacing:.2px;
}
p{margin:0 0 1.2em;color:var(--ink-2);}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
strong{color:var(--ink);font-weight:700;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.grid-x > .cell{padding-left:12px;padding-right:12px;min-width:0;width:100%;}
.grid-x.align-middle{align-items:center;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand__mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--green);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand__mark svg{width:24px;height:24px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:17px;font-weight:800;color:var(--green);letter-spacing:.4px;}
.brand__text span{font-size:11px;color:var(--ink-2);letter-spacing:2px;}
.nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  min-width:0;
}
.nav a{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.nav a:hover{color:var(--green);background:var(--weak);}
.nav a.is-active{color:var(--green);font-weight:700;}
.nav a.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--lime);
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search{
  display:flex;align-items:center;gap:8px;
  background:var(--weak);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:8px 16px;
  min-width:220px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search:focus-within{border-color:var(--green);box-shadow:0 0 0 3px rgba(13,68,55,.10);background:#fff;}
.search i{font-size:13px;color:var(--ink-2);}
.search input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--ink);
}
.search input::placeholder{color:#98A29C;}
.link-login{font-size:15px;color:var(--ink-2);}
.link-login:hover{color:var(--green);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--green);
  font-size:17px;
  cursor:pointer;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--green);background:var(--weak);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px 20px 20px;
}
.mobile-drawer a{
  display:block;
  padding:12px 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink-2);
}
.mobile-drawer a.is-active{color:var(--green);font-weight:700;}
.mobile-drawer .btn{margin-top:16px;border-bottom:0;}
.mobile-drawer.open{display:block;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px -10px rgba(255,106,43,.75);}
.btn-primary:hover{background:#ef5b1c;color:#fff;box-shadow:0 12px 26px -12px rgba(255,106,43,.85);}
.btn-primary:active{background:#dd5216;}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green);}
.btn-ghost:hover{background:rgba(13,68,55,.08);color:var(--green);}
.btn-ghost:active{background:rgba(13,68,55,.16);}
.btn-light{background:#fff;color:var(--green);border-color:#fff;}
.btn-light:hover{background:var(--lime);color:var(--green);border-color:var(--lime);}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--green);
}
.text-link i{transition:transform .18s var(--ease);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
  background:rgba(13,68,55,.08);
  color:var(--green);
}
.badge--param{background:var(--weak);color:var(--ink-2);font-weight:500;}
.badge--lime{background:rgba(199,240,74,.28);color:var(--green);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-2);
  padding:20px 0 0;
}
.breadcrumb .sep{color:#B7BFB9;}
.breadcrumb .current{color:var(--green);font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{font-size:32px;margin:0 0 10px;}
.section-head p{margin:0;max-width:640px;font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--green);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--lime);
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(105deg,rgba(11,27,22,.92) 0%,rgba(13,68,55,.86) 52%,rgba(13,68,55,.62) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#fff;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(199,240,74,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(199,240,74,.10) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero .breadcrumb{color:rgba(255,255,255,.68);padding-top:26px;}
.hero .breadcrumb a:hover{color:var(--lime);}
.hero .breadcrumb .current{color:var(--lime);}
.hero-grid{display:flex;gap:48px;align-items:center;padding:40px 0 84px;}
.hero-copy{flex:1 1 54%;min-width:0;}
.hero-copy h1{
  color:#fff;
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  margin:18px 0 18px;
  max-width:15em;
}
.hero-copy h1 em{font-style:normal;color:var(--lime);}
.hero-copy .lead{
  color:rgba(255,255,255,.82);
  font-size:18px;
  max-width:34em;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:10px;
}
.hero-trust span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:rgba(255,255,255,.78);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.hero-trust span i{color:var(--lime);font-size:11px;}
.hero-visual{
  flex:1 1 42%;
  min-width:0;
  position:relative;
}
.hero-visual img{
  width:100%;
  border-radius:var(--r-card);
  box-shadow:var(--sh-3);
  border:1px solid rgba(255,255,255,.14);
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-22px;
  background:#fff;
  color:var(--ink);
  border-radius:14px;
  padding:14px 18px;
  box-shadow:var(--sh-3);
  display:flex;align-items:center;gap:12px;
  max-width:280px;
}
.hero-float .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 6px rgba(199,240,74,.25);
  flex:0 0 auto;
}
.hero-float b{display:block;font-size:15px;color:var(--green);}
.hero-float small{font-size:12px;color:var(--ink-2);}

/* ---------- 指标卡阵列 ---------- */
.metrics{padding:72px 0 96px;}
.metric-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  height:100%;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.metric-card .metric-value{
  font-size:44px;
  font-weight:800;
  color:var(--green);
  line-height:1.05;
  letter-spacing:-1px;
  display:flex;align-items:baseline;gap:6px;
}
.metric-card .metric-value .unit{font-size:15px;font-weight:600;color:var(--ink-2);letter-spacing:0;}
.metric-card h3{font-size:17px;margin:14px 0 8px;}
.metric-card p{font-size:14px;line-height:1.75;margin:0;}
.metric-card .bar{
  height:4px;border-radius:4px;background:var(--weak);
  margin-top:18px;overflow:hidden;
}
.metric-card .bar i{
  display:block;height:100%;border-radius:4px;
  background:linear-gradient(90deg,var(--green),var(--lime));
}

/* ---------- 能力卡 ---------- */
.cap-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px 26px;
  height:100%;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.cap-card .cap-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.cap-icon{
  width:44px;height:44px;border-radius:14px;
  background:rgba(13,68,55,.08);
  color:var(--green);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
}
.cap-no{
  font-size:13px;font-weight:800;letter-spacing:1px;color:var(--green);
  background:rgba(199,240,74,.35);
  border-radius:var(--r-pill);
  padding:3px 12px;
}
.cap-card h3{font-size:20px;margin-bottom:10px;}
.cap-card p{font-size:15px;line-height:1.8;margin-bottom:16px;}
.cap-list{margin-top:auto;border-top:1px dashed var(--line);padding-top:16px;}
.cap-list li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.9;
}
.cap-list li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:6px;height:6px;border-radius:50%;background:var(--lime);
}

/* ---------- 深色看板区块 ---------- */
.board-section{
  background:
    linear-gradient(rgba(11,27,22,.95),rgba(11,27,22,.95)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#fff;
  padding:96px 0;
}
.board-section h2{color:#fff;font-size:32px;}
.board-section .eyebrow{color:var(--lime);}
.board-section p{color:rgba(255,255,255,.74);}
.board-panel{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:26px;
}
.board-panel h3{color:#fff;font-size:17px;margin-bottom:20px;display:flex;align-items:center;gap:8px;}
.board-panel h3 i{color:var(--lime);font-size:13px;}
.chart{
  display:flex;align-items:flex-end;gap:14px;
  height:180px;
  padding-bottom:6px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.chart .bar{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:8px;height:100%;}
.chart .bar i{
  display:block;width:100%;border-radius:8px 8px 3px 3px;
  background:linear-gradient(180deg,var(--lime),rgba(199,240,74,.25));
  transition:height .6s var(--ease);
}
.chart .bar span{font-size:12px;color:rgba(255,255,255,.6);}
.board-legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;}
.board-legend div{font-size:13px;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:8px;}
.board-legend em{width:10px;height:10px;border-radius:3px;display:inline-block;background:var(--lime);font-style:normal;}
.board-legend em.o{background:var(--orange);}
.board-legend em.g{background:rgba(255,255,255,.4);}
.board-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.10);
  font-size:15px;
  color:rgba(255,255,255,.82);
}
.board-list li:last-child{border-bottom:0;}
.board-list b{color:var(--lime);font-weight:700;}

/* ---------- 案例横滑 ---------- */
.case-wrap{position:relative;}
.case-track{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 22px;
  scrollbar-width:thin;
}
.case-track::-webkit-scrollbar{height:6px;}
.case-track::-webkit-scrollbar-thumb{background:#CBD3CC;border-radius:6px;}
.case-card{
  flex:0 0 340px;
  scroll-snap-align:start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(13,68,55,.25);}
.case-card img{width:100%;height:180px;object-fit:cover;border-radius:0;}
.case-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.case-body h3{font-size:19px;margin:14px 0 10px;}
.case-body p{font-size:14.5px;line-height:1.8;margin-bottom:16px;}
.case-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-2);
}
.case-nav{display:flex;gap:10px;}
.case-nav button{
  width:42px;height:42px;border-radius:50%;
  border:1.5px solid var(--line);
  background:#fff;color:var(--green);
  cursor:pointer;font-size:14px;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.case-nav button:hover{border-color:var(--green);background:var(--weak);}

/* ---------- 流程时间轴 ---------- */
.flow{position:relative;}
.flow-line{
  position:absolute;
  left:22px;right:22px;top:22px;
  height:2px;
  background:linear-gradient(90deg,var(--lime),rgba(13,68,55,.18));
}
.flow-item{position:relative;padding-top:64px;}
.flow-item .flow-dot{
  position:absolute;top:0;left:0;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid var(--green);
  color:var(--green);font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.flow-item h3{font-size:18px;margin-bottom:8px;}
.flow-item p{font-size:14.5px;line-height:1.8;margin:0;}
.flow-item .badge{margin-top:12px;}

/* ---------- FAQ ---------- */
.faq-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:12px 32px;
  box-shadow:var(--sh-1);
}
.faq-accordion{border:0;background:transparent;margin:0;}
.faq-accordion .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-accordion .accordion-item:last-child{border-bottom:0;}
.faq-accordion .accordion-title{
  border:0;
  background:transparent;
  padding:22px 46px 22px 0;
  font-size:17px;
  font-weight:600;
  color:var(--green);
  position:relative;
  line-height:1.6;
}
.faq-accordion .accordion-title:hover{color:var(--green-deep);}
.faq-accordion .accordion-title::before{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--green);
  transition:transform .2s var(--ease);
}
.faq-accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(180deg);}
.faq-accordion .accordion-content{
  border:0;
  background:transparent;
  padding:0 0 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}
.faq-accordion .accordion-content p{margin:0;font-size:15px;}

/* ---------- 咨询 CTA ---------- */
.cta-band{
  background:
    linear-gradient(110deg,rgba(13,68,55,.96),rgba(11,27,22,.94)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  padding:88px 0;
}
.cta-band h2{color:#fff;font-size:32px;}
.cta-band p{color:rgba(255,255,255,.76);}
.cta-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:rgba(255,255,255,.82);
  padding:7px 0;
}
.cta-points i{color:var(--lime);font-size:13px;margin-top:.6em;}
.form-card{
  background:#fff;
  border-radius:var(--r-card);
  padding:30px 28px;
  box-shadow:var(--sh-3);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:14px;color:var(--ink-2);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  padding:12px 14px;
  font-size:15px;
  color:var(--ink);
  font-family:inherit;
  outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{resize:vertical;min-height:88px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--green);
  box-shadow:0 0 0 3px rgba(13,68,55,.10);
}
.field input::placeholder,.field textarea::placeholder{color:#A3ACA6;}
.check{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--ink-2);line-height:1.7;
  margin:8px 0 18px;
}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--green);flex:0 0 auto;}
.check a{color:var(--green);font-weight:600;text-decoration:underline;}
.privacy-note{font-size:13px;color:var(--ink-2);line-height:1.75;margin-top:14px;}
.cta-band .privacy-note{color:rgba(255,255,255,.62);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  font-size:15px;
}
.footer-grid{display:flex;flex-wrap:wrap;gap:48px;}
.footer-brand{flex:1 1 320px;min-width:260px;max-width:420px;}
.footer-brand .brand__mark{background:rgba(255,255,255,.10);}
.footer-brand .brand__text b{color:#fff;}
.footer-brand .brand__text span{color:rgba(255,255,255,.55);}
.footer-brand p{color:rgba(255,255,255,.62);font-size:14px;line-height:1.8;margin-top:18px;}
.footer-col{flex:1 1 180px;min-width:160px;}
.footer-col h4{
  color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;letter-spacing:.5px;
}
.footer-col ul li{
  font-size:14px;line-height:2.1;color:rgba(255,255,255,.66);
}
.footer-col ul li a{color:rgba(255,255,255,.66);}
.footer-col ul li a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.site-footer .brand{display:flex;align-items:center;gap:10px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1180px){
  .search{min-width:170px;}
  .nav a{padding:10px 10px;font-size:14.5px;}
}
@media screen and (max-width:1023px){
  .nav,.search,.link-login{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{min-height:64px;gap:16px;}
  .header-actions{margin-left:auto;}
  .section{padding:72px 0;}
  .metrics{padding:56px 0 72px;}
  .hero-copy h1{font-size:36px;}
  .hero-grid{padding:32px 0 64px;gap:36px;}
  .hero-visual{flex:1 1 100%;}
  .hero-float{left:0;bottom:-18px;}
  .board-section{padding:72px 0;}
  .cta-band{padding:72px 0;}
  .footer-grid{gap:36px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .section-head h2{font-size:25px;}
  .hero-copy h1{font-size:30px;line-height:1.35;}
  .hero-copy .lead{font-size:16px;}
  .hero-grid{padding:24px 0 56px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-float{position:static;margin-top:16px;max-width:none;}
  .metric-card .metric-value{font-size:34px;}
  .board-section h2,.cta-band h2{font-size:25px;}
  .chart{height:140px;gap:8px;}
  .case-card{flex:0 0 82%;}
  .flow-line{display:none;}
  .flow-item{padding-top:0;padding-left:56px;margin-bottom:28px;}
  .flow-item .flow-dot{top:0;}
  .faq-panel{padding:6px 20px;}
  .faq-accordion .accordion-title{font-size:16px;padding:18px 40px 18px 0;}
  .form-card{padding:24px 20px;}
  .site-footer{padding:56px 0 24px;}
  .footer-grid{gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media screen and (max-width:519px){
  .brand__text b{font-size:16px;}
  .brand__text span{letter-spacing:1px;}
  .metric-card{padding:22px 18px;}
  .cap-card{padding:24px 20px;}
  .case-track{gap:16px;}
}