/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand-deep:#0F3D33;
  --brand:#17614F;
  --brand-soft:#E7F0EC;
  --accent:#F0572A;
  --accent-dark:#D5441B;
  --accent-2:#FFC93C;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE4;
  --line:#E4E0D6;
  --text-1:#171C1A;
  --text-2:#59635E;
  --text-3:#8A938E;
  --sh1:0 1px 2px rgba(15,61,51,.06);
  --sh2:0 8px 24px rgba(15,61,51,.10);
  --sh3:0 18px 44px rgba(15,61,51,.14);
  --r-sm:10px;
  --r:14px;
  --r-lg:18px;
  --nav-h:76px;
  --ease:.24s ease;
}

/* ============ 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",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.9;letter-spacing:.01em;
  color:var(--text-1);background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--accent)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6,p,figure{margin:0}
h1,h2,h3,h4{font-family:inherit;color:inherit;line-height:1.35;font-weight:700}
.num,.tabular{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;
}

/* ============ 容器与分区 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:88px 0;border-top:1px solid rgba(15,61,51,.08)}
.section--alt{background:var(--surface)}
.section--muted{background:var(--surface-2)}
.section--plain{border-top:0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;max-width:none;margin-bottom:42px}
.section-head--row .section-head__text{max-width:640px}
.section-tag{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--brand)}
.section-tag::before{content:"";width:18px;height:2px;background:var(--accent);display:block}
.section-title{font-size:30px;font-weight:700;line-height:1.35;margin-top:12px}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.9}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(240,87,42,.22)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(240,87,42,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(240,87,42,.2)}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand-deep)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px)}
.btn-outline-light{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.86)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.text-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-deep);padding-bottom:3px;white-space:nowrap}
.text-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:width var(--ease)}
.text-link:hover::after{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:600;letter-spacing:.04em}
.badge--warm{background:rgba(255,201,60,.26);color:#7A5300}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:var(--nav-h);display:flex;align-items:center;
  background:transparent;
  transition:height .2s ease,background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{height:60px;background:var(--brand-deep);box-shadow:var(--sh2)}
.nav-inner{display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;letter-spacing:.02em;flex:0 0 auto}
.brand:hover{color:#fff}
.brand__mark{position:relative;width:34px;height:34px;flex:0 0 34px;border-radius:var(--r-sm);background:var(--accent);overflow:hidden}
.brand__mark::before{content:"";position:absolute;left:8px;right:8px;top:8px;height:12px;border:2px solid #fff;border-radius:2px}
.brand__mark::after{content:"";position:absolute;left:10px;right:10px;bottom:8px;height:2px;background:#fff;box-shadow:0 -4px 0 rgba(255,255,255,.55)}
.brand--dark{color:var(--brand-deep)}
.brand--dark:hover{color:var(--brand-deep)}
.main-nav{margin-left:10px}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav a{position:relative;display:block;padding:10px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);border-radius:8px}
.main-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:700}
.main-nav a.is-active::after{transform:scaleX(1)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:var(--r-sm);padding:2px 2px 2px 12px;transition:background var(--ease),border-color var(--ease),box-shadow var(--ease)}
.nav-search input{width:150px;padding:8px 0;background:transparent;border:0;outline:0;font-size:14px;color:#fff}
.nav-search input::placeholder{color:rgba(255,255,255,.62)}
.nav-search button{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;color:rgba(255,255,255,.82);transition:background var(--ease),color var(--ease)}
.nav-search button:hover{background:rgba(255,255,255,.16);color:#fff}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,97,79,.18)}
.nav-search:focus-within input{color:var(--text-1)}
.nav-search:focus-within input::placeholder{color:var(--text-3)}
.nav-search:focus-within button{color:var(--brand)}
.nav-search:focus-within button:hover{background:var(--brand-soft)}
.nav-burger{display:none;width:44px;height:44px;border-radius:var(--r-sm);color:#fff;font-size:18px;place-items:center;border:1px solid rgba(255,255,255,.28)}
.nav-burger:hover{background:rgba(255,255,255,.14)}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;
  background:#fff;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .3s ease;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);font-size:24px;color:var(--text-2);display:grid;place-items:center;line-height:1}
.drawer-close:hover{background:var(--surface-2);color:var(--text-1)}
.drawer-search{display:flex;align-items:center;gap:8px;margin:18px 20px 0;padding:4px 4px 4px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface)}
.drawer-search input{flex:1;border:0;outline:0;padding:11px 0;font-size:15px;background:transparent}
.drawer-search button{width:40px;height:40px;border-radius:8px;background:var(--brand-deep);color:#fff;display:grid;place-items:center}
.drawer-nav{flex:1;overflow-y:auto;padding:10px 20px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:56px;font-size:18px;font-weight:600;color:var(--text-1);border-bottom:1px solid var(--line)}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent)}
.drawer-nav i{font-size:14px;color:var(--text-3)}
.drawer-foot{padding:18px 20px 26px;border-top:1px solid var(--line)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff;padding:calc(var(--nav-h) + 58px) 0 84px}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center center}
.hero__veil{position:absolute;inset:0;background:rgba(15,61,51,.72)}
.hero__fade{position:absolute;left:0;right:0;bottom:0;height:24%;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(15,61,51,0) 0%,rgba(15,61,51,.9) 100%)}
.hero__inner{position:relative;z-index:2}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.12em;color:rgba(255,255,255,.82);padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2)}
.hero__eyebrow i{color:var(--accent-2)}
.hero__title{margin-top:22px;font-size:40px;font-weight:800;line-height:1.35;letter-spacing:.01em;max-width:14em}
.hero__sub{margin-top:18px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.84);max-width:34em}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.2)}
.hero__stats li{display:flex;flex-direction:column;gap:2px}
.hero__stats .num{font-size:26px;font-weight:800;color:#fff;letter-spacing:.02em}
.hero__stats span{font-size:13px;color:rgba(255,255,255,.68)}
.hero__visual{margin-top:8px}
.hero-card{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.2);box-shadow:var(--sh3);background:var(--surface-2)}
.hero-card img{width:100%;height:360px;object-fit:cover}
.hero-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 20px;background:rgba(15,61,51,.85);font-size:14px;line-height:1.6;color:rgba(255,255,255,.92)}

/* ============ 品牌主张带 ============ */
.claims{background:var(--brand-deep);color:#fff;border-top:1px solid rgba(255,255,255,.1)}
.claims__list{display:grid;grid-template-columns:repeat(4,1fr)}
.claims__item{display:flex;align-items:center;gap:14px;padding:30px 22px;min-height:104px;border-right:1px solid rgba(255,255,255,.12)}
.claims__item:last-child{border-right:0}
.claims__icon{width:40px;height:40px;flex:0 0 40px;border-radius:var(--r-sm);background:rgba(240,87,42,.18);color:var(--accent-2);display:grid;place-items:center;font-size:16px}
.claims__text{font-size:15px;font-weight:600;letter-spacing:.08em}

/* ============ 故事 / 理念 ============ */
.story__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);background:var(--surface-2)}
.story__media img{width:100%;height:420px;object-fit:cover}
.story__badge{position:absolute;left:0;bottom:0;background:var(--accent);color:#fff;padding:12px 20px;font-size:14px;font-weight:700;border-radius:0 var(--r) 0 0}
.story__lead{font-size:16px;color:var(--text-2);margin-top:14px}
.story__list{margin-top:32px}
.story__item{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--line)}
.story__item:last-child{border-bottom:1px solid var(--line)}
.story__num{font-size:22px;font-weight:800;color:var(--accent);line-height:1.4;letter-spacing:.02em}
.story__item h3{font-size:20px;font-weight:700}
.story__item p{margin-top:8px;font-size:16px;color:var(--text-2);line-height:1.9}
.story__aside{margin-top:26px;padding:20px 22px;border-radius:var(--r);background:var(--brand-soft);border-left:3px solid var(--brand)}
.story__aside p{font-size:15px;color:var(--brand-deep);line-height:1.85}

/* ============ 精选内容 bento ============ */
.featured__grid{display:flex;flex-wrap:wrap}
.feat-card{position:relative;display:block;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh1);color:inherit;transition:transform var(--ease),box-shadow var(--ease)}
.feat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);z-index:3}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);color:inherit}
.feat-card:hover::before{transform:scaleX(1)}
.feat-card__media{background:var(--surface-2);overflow:hidden}
.feat-card--lg .feat-card__media img{width:100%;height:322px;object-fit:cover;transition:transform .4s ease}
.feat-card--lg:hover .feat-card__media img{transform:scale(1.03)}
.feat-card__body{padding:26px 28px 30px}
.feat-card__title{margin-top:14px;font-size:24px;font-weight:700;line-height:1.45}
.feat-card__excerpt{margin-top:12px;color:var(--text-2);font-size:16px;line-height:1.85}
.feat-card__meta{margin-top:18px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-3)}
.feat-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px;height:100%}
.feat-card--sm{display:flex;align-items:center;gap:18px;padding:16px}
.feat-card--sm img{width:136px;height:100px;flex:0 0 136px;object-fit:cover;border-radius:var(--r-lg);background:var(--surface-2)}
.feat-card--sm .feat-card__sm-body{flex:1;min-width:0}
.feat-card--sm h3{font-size:18px;font-weight:700;line-height:1.5}
.feat-card--sm .feat-card__sm-tag{margin-bottom:8px;display:inline-block;font-size:12px;color:var(--brand);font-weight:600;letter-spacing:.08em}
.feat-card__arrow{flex:0 0 auto;color:var(--text-3);font-size:15px;transition:transform var(--ease),color var(--ease)}
.feat-card--sm:hover .feat-card__arrow{color:var(--accent);transform:translateX(4px)}

/* ============ 最新信息列表 ============ */
.news-grid > .cell{margin-bottom:24px}
.news-card{display:flex;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh1);transition:transform var(--ease),box-shadow var(--ease)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.news-card__link{display:flex;flex-direction:column;width:100%;color:inherit}
.news-card__link:hover{color:inherit}
.news-card__media{background:var(--surface-2)}
.news-card__media img{width:100%;height:194px;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-card__media img{transform:scale(1.03)}
.news-card__body{display:flex;flex-direction:column;flex:1;padding:22px 24px 20px}
.news-card__title{margin-top:12px;font-size:19px;font-weight:700;line-height:1.5}
.news-card__link:hover .news-card__title{color:var(--brand-deep)}
.news-card__excerpt{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.news-card__time{font-variant-numeric:tabular-nums}
.news-empty{max-width:520px;margin:0 auto;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r);padding:48px 28px}
.news-empty i{font-size:30px;color:var(--text-3)}
.news-empty p{margin-top:16px;font-size:16px;color:var(--text-2)}
.news-empty a{margin-top:18px;display:inline-flex}

/* ============ 信任背书 ============ */
.trust__label{text-align:center;font-size:13px;letter-spacing:.14em;color:var(--text-3);font-weight:600}
.trust__logos{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:22px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.trust__logo{background:var(--surface);padding:24px 16px;text-align:center;font-size:14px;font-weight:600;color:var(--text-3);letter-spacing:.04em;transition:color var(--ease),background var(--ease)}
.trust__logo:hover{color:var(--brand-deep);background:#fff}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:52px;padding-top:44px;border-top:1px solid var(--line)}
.metric__num{font-size:36px;font-weight:800;line-height:1.15;color:var(--brand-deep);letter-spacing:.02em}
.metric__num em{font-style:normal;font-size:18px;font-weight:700;color:var(--brand);margin-left:2px}
.metric__label{margin-top:8px;font-size:14px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{max-width:860px;margin:0 auto}
.faq__item{background:var(--surface);border-radius:var(--r);box-shadow:var(--sh1);margin-bottom:12px;overflow:hidden}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;height:56px;padding:0 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text-1)}
.faq__q:hover{color:var(--brand-deep)}
.faq__icon{flex:0 0 auto;width:22px;height:22px;position:relative}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--accent);border-radius:2px;transition:transform .26s ease,opacity .26s ease}
.faq__icon::before{left:4px;right:4px;top:10px;height:2px}
.faq__icon::after{top:4px;bottom:4px;left:10px;width:2px}
.faq__item.is-open .faq__icon::after{transform:scaleY(0);opacity:0}
.faq__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq__item.is-open .faq__a{grid-template-rows:1fr}
.faq__a-inner{overflow:hidden}
.faq__a-inner p{padding:0 24px 22px;border-top:1px solid var(--line);padding-top:18px;font-size:16px;line-height:1.8;color:var(--text-2)}

/* ============ 订阅 CTA ============ */
.cta-band{background:var(--brand-deep);color:#fff;padding:76px 0;border-top:0}
.cta-band__inner{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.4}
.cta-band__desc{margin-top:14px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.76)}
.cta-form{display:flex;gap:12px}
.cta-form input{flex:1;min-width:0;padding:14px 16px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);color:#fff;font-size:15px;outline:0;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease)}
.cta-form input::placeholder{color:rgba(255,255,255,.55)}
.cta-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.14);box-shadow:0 0 0 4px rgba(240,87,42,.18)}
.form-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6)}
.form-note.is-ok{color:var(--accent-2);font-weight:600}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.74);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:18px;max-width:320px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-title{font-size:15px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-links a:hover{color:var(--accent-2);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68)}
.footer-contact li+li{margin-top:10px}
.footer-contact i{color:var(--accent-2);margin-top:5px;font-size:13px;flex:0 0 auto}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--accent-2)}

/* ============ 返回顶部 ============ */
.back-top{position:fixed;right:24px;bottom:28px;z-index:110;width:48px;height:48px;border-radius:50%;background:var(--brand-deep);color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:var(--sh2);opacity:0;visibility:hidden;transition:opacity var(--ease),background var(--ease),transform var(--ease),visibility var(--ease)}
.back-top.is-visible{opacity:1;visibility:visible}
.back-top:hover{background:var(--accent);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-burger{display:grid}
  .hero{padding:calc(var(--nav-h) + 44px) 0 68px}
  .hero__title{font-size:34px;max-width:none}
  .hero-card img{height:300px}
  .claims__list{grid-template-columns:repeat(2,1fr)}
  .claims__item{border-bottom:1px solid rgba(255,255,255,.12)}
  .claims__item:nth-child(2n){border-right:0}
  .story__media img{height:340px}
  .trust__logos{grid-template-columns:repeat(3,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-band__inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media screen and (max-width:768px){
  body{font-size:16px}
  .container{padding-left:20px;padding-right:20px}
  .section{padding:64px 0}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px}
  .section-title{font-size:24px}
  .hero__title{font-size:30px}
  .hero__stats{gap:28px}
  .hero__stats .num{font-size:22px}
  .feat-card--lg .feat-card__media img{height:240px}
  .feat-card--sm img{width:110px;height:88px;flex:0 0 110px}
  .feat-card--sm h3{font-size:16px}
  .trust__logos{grid-template-columns:repeat(2,1fr)}
  .story__item{grid-template-columns:44px 1fr;gap:14px}
  .story__num{font-size:19px}
}
@media screen and (max-width:519px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:48px 0}
  .hero__title{font-size:28px}
  .hero__sub{font-size:16px}
  .hero__actions{flex-direction:column}
  .hero__actions .btn{width:100%}
  .hero-card img{height:220px}
  .claims__list{grid-template-columns:1fr}
  .claims__item{border-right:0;min-height:88px;padding:22px 20px}
  .section-title{font-size:22px}
  .feat-card__body{padding:20px 20px 24px}
  .feat-card__title{font-size:20px}
  .feat-card--sm{flex-direction:column;align-items:flex-start;padding:14px}
  .feat-card--sm img{width:100%;height:150px;flex:none}
  .news-card__media img{height:170px}
  .metrics{grid-template-columns:1fr;gap:24px}
  .faq__q{height:auto;min-height:56px;padding:14px 18px;font-size:16px}
  .faq__a-inner p{padding:16px 18px 20px}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:22px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .back-top{right:16px;bottom:18px;width:44px;height:44px}
}

/* roulang page: article */
:root{
  --brand-deep:#0F3D33;
  --brand:#17614F;
  --accent:#F0572A;
  --accent-2:#FFC93C;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE4;
  --line:#E4E0D6;
  --text-1:#171C1A;
  --text-2:#59635E;
  --text-3:#8A938E;
  --sh1:0 1px 2px rgba(15,61,51,.06);
  --sh2:0 8px 24px rgba(15,61,51,.10);
  --sh3:0 18px 44px rgba(15,61,51,.14);
  --r-lg:14px;
  --r-md:12px;
  --r-sm:10px;
  --nav-h:76px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
body.article-page{padding-top:var(--nav-h);}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-md);background:var(--surface-2);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--text-1);letter-spacing:.01em;}
h1{font-size:40px;font-weight:800;}
h2{font-size:30px;font-weight:700;}
h3{font-size:20px;font-weight:700;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.grid-x.grid-margin-y{margin-top:-12px;margin-bottom:-12px;}
.grid-x.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 26px;min-height:44px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh1);}
.btn-primary:hover{background:#d7471d;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--brand-deep);border-color:var(--brand);}
.btn-outline:hover{background:rgba(23,97,79,.08);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:rgba(255,255,255,.92);border-color:rgba(255,255,255,.35);}
.btn-ghost:hover{color:#fff;border-color:var(--accent-2);background:rgba(255,255,255,.08);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);
  position:relative;padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.text-link:hover::after{width:100%;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(23,97,79,.10);color:var(--brand-deep);
}
.badge--yellow{background:rgba(255,201,60,.28);color:#7a5600;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--nav-h);
  background:var(--brand-deep);
  transition:height .2s ease,box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{height:60px;box-shadow:var(--sh2);}
.nav-inner{display:flex;align-items:center;gap:24px;height:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:30px;height:30px;border-radius:8px;position:relative;flex:0 0 auto;
  background:linear-gradient(180deg,var(--accent) 0 38%,#fff 38% 62%,var(--brand) 62% 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.5);
}
.brand__mark::after{
  content:"";position:absolute;left:4px;right:4px;top:50%;height:2px;background:rgba(15,61,51,.55);
}
.brand__text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.04em;white-space:nowrap;}
.brand:hover .brand__text{color:var(--accent-2);}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;display:inline-block;padding:6px 0;
  color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.is-active{color:#fff;font-weight:700;}
.main-nav a.is-active::after{width:100%;}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:0;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.24);
  border-radius:var(--r-sm);
  padding:4px 4px 4px 12px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search:focus-within{
  border-color:var(--accent);
  background:#fff;
  box-shadow:0 0 0 4px rgba(240,87,42,.20);
}
.nav-search input{
  background:transparent;border:0;outline:none;color:#fff;
  font-size:14px;width:150px;height:32px;font-family:inherit;
}
.nav-search:focus-within input{color:var(--text-1);}
.nav-search input::placeholder{color:rgba(255,255,255,.6);}
.nav-search:focus-within input::placeholder{color:var(--text-3);}
.nav-search button{
  width:32px;height:32px;border-radius:8px;border:0;
  background:rgba(255,255,255,.16);color:#fff;font-size:13px;
  transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:var(--accent);color:#fff;}
.nav-search:focus-within button{background:var(--accent);color:#fff;}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:17px;
}
.nav-burger:hover{background:rgba(255,255,255,.2);}

/* drawer */
.nav-drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  transform:translateX(100%);transition:transform .26s ease;
  display:flex;flex-direction:column;padding:0 20px 24px;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;height:64px;}
.nav-drawer__head .brand__text{color:var(--brand-deep);}
.nav-drawer__close{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--surface);color:var(--text-1);font-size:17px;
}
.nav-drawer__list{border-top:1px solid var(--line);margin-top:8px;}
.nav-drawer__list li{border-bottom:1px solid var(--line);}
.nav-drawer__list a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:18px;font-weight:600;color:var(--text-1);
}
.nav-drawer__list a.is-active{color:var(--accent);}
.nav-drawer__search{display:flex;gap:8px;margin-top:20px;}
.nav-drawer__search input{
  flex:1;height:46px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;font-size:15px;font-family:inherit;background:#fff;
}
.nav-drawer__search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,97,79,.12);}
.nav-drawer__foot{margin-top:auto;padding-top:20px;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);padding:24px 0 0;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--accent);font-weight:600;}

/* ---------- article head ---------- */
.article-head{padding:20px 0 32px;border-bottom:1px solid rgba(15,61,51,.08);}
.article-head h1{max-width:900px;margin-bottom:18px;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13px;color:var(--text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}
.article-cover{margin:32px 0 0;}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);}
.article-cover figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}

/* ---------- layout ---------- */
.article-layout{padding:44px 0 0;}
.sidebar-inner{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh1);
}
.side-title{
  font-size:15px;font-weight:700;letter-spacing:.06em;color:var(--brand-deep);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-title::before{content:"";width:14px;height:3px;background:var(--accent);border-radius:2px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text-2);
  border-left:3px solid transparent;
}
.toc-list a:hover{background:var(--surface-2);color:var(--brand-deep);}
.toc-list a.is-current{border-left-color:var(--accent);color:var(--brand-deep);font-weight:600;background:rgba(240,87,42,.06);}
.toc-list span{font-size:12px;color:var(--text-3);}
.side-links{display:flex;flex-direction:column;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 12px;border-radius:8px;font-size:14px;color:var(--text-1);
  border:1px solid transparent;
}
.side-links a:hover{background:var(--surface-2);border-color:var(--line);color:var(--brand-deep);}
.side-links i{font-size:12px;color:var(--text-3);}
.mini-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);}
.mini-post:last-child{border-bottom:0;padding-bottom:0;}
.mini-post img{width:78px;height:56px;object-fit:cover;border-radius:8px;flex:0 0 auto;}
.mini-post h4{font-size:14px;font-weight:600;line-height:1.55;margin-bottom:4px;}
.mini-post h4 a{color:var(--text-1);}
.mini-post h4 a:hover{color:var(--accent);}
.mini-post span{font-size:12px;color:var(--text-3);}
.toc-mobile{display:none;}

/* ---------- article body ---------- */
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 38px;box-shadow:var(--sh1);
  max-width:760px;font-size:17px;line-height:1.9;color:var(--text-1);
}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:30px;font-weight:700;margin:48px 0 16px;position:relative;padding-top:0;color:var(--brand-deep);
}
.article-body h2::before{
  content:"";display:block;width:44px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:14px;
}
.article-body h3{font-size:20px;font-weight:700;margin:32px 0 12px;color:var(--brand-deep);}
.article-body h4{font-size:17px;font-weight:700;margin:24px 0 10px;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(23,97,79,.3);}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:3px solid var(--brand);
  background:var(--surface-2);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{margin:0 0 20px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:13px;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.article-body ol{margin:0 0 20px;counter-reset:item;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:item;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:5px;
  width:20px;height:20px;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;border-radius:6px;background:var(--brand-deep);color:#fff;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);}
.article-body thead th{background:var(--brand-deep);color:#fff;text-align:left;font-weight:600;padding:12px 14px;}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--line);color:var(--text-2);}
.article-body tbody tr:nth-child(even){background:var(--surface-2);}
.article-body img{border-radius:var(--r-md);margin:24px auto;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin:-12px 0 24px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* empty state */
.empty-state{
  max-width:520px;margin:0 auto;text-align:center;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 28px;
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block;}
.empty-state h3{font-size:20px;margin-bottom:8px;color:var(--brand-deep);}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* ---------- tags & post nav ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:var(--surface);border:1px solid var(--line);color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);background:rgba(23,97,79,.06);}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px 20px;box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(240,87,42,.4);}
.post-nav span{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.post-nav strong{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.6;}
.post-nav .dir{color:var(--accent);font-size:13px;font-weight:600;}

/* ---------- related ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0 0;}
.section--alt{background:var(--surface);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:30px;}
.section-head p{color:var(--text-2);font-size:15px;margin:8px 0 0;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--accent);}
.card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);
  opacity:0;transition:opacity .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(23,97,79,.22);}
.card:hover::before{opacity:1;}
.card__media{position:relative;overflow:hidden;border-radius:0;}
.card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.card__media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;gap:10px;}
.card__body h3{font-size:18px;line-height:1.5;}
.card__body h3 a{color:var(--text-1);}
.card__body h3 a:hover{color:var(--accent);}
.card__body p{font-size:14px;color:var(--text-2);margin:0;}
.card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);padding-top:4px;
}
.card__foot i{color:var(--accent);}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-deep);color:#fff;padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.72);margin:0;font-size:15px;max-width:520px;}
.cta-form{display:flex;gap:10px;flex:0 0 auto;}
.cta-form input{
  height:48px;width:280px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.10);color:#fff;padding:0 16px;font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{outline:none;background:rgba(255,255,255,.16);border-color:var(--accent-2);box-shadow:0 0 0 4px rgba(255,201,60,.18);}
.cta-note{font-size:12px;color:rgba(255,255,255,.55);margin-top:14px;}

/* ---------- back to list ---------- */
.back-row{display:flex;justify-content:center;padding:56px 0 0;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(246,244,239,.78);padding:72px 0 28px;font-size:14px;}
.site-footer .brand__text{color:#fff;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand p{margin-top:16px;line-height:1.9;color:rgba(246,244,239,.66);max-width:320px;}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.04em;}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(246,244,239,.72);position:relative;}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);transition:width .24s ease;}
.footer-links a:hover{color:var(--accent-2);}
.footer-links a:hover::after{width:100%;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(246,244,239,.68);line-height:1.7;}
.footer-contact i{color:var(--accent-2);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(246,244,239,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,244,239,.6);
}
.footer-bottom a{color:rgba(246,244,239,.78);}
.footer-bottom a:hover{color:var(--accent-2);text-decoration:underline;}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:50;
  width:48px;height:48px;border-radius:50%;border:0;
  background:var(--brand-deep);color:#fff;font-size:16px;
  box-shadow:var(--sh2);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease,background .24s ease,transform .24s ease;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--accent);transform:translateY(-3px);}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .container{padding:0 20px;}
  h1{font-size:32px;}
  .section{padding:64px 0;}
  .article-body{padding:28px 26px;font-size:16px;}
  .article-body h2{font-size:24px;margin-top:38px;}
  .article-body h3{font-size:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:900px){
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center;}
  .nav-tools{gap:8px;}
}
@media screen and (max-width:640px){
  body{font-size:16px;}
  body.article-page{padding-top:64px;}
  .container{padding:0 16px;}
  :root{--nav-h:64px;}
  .site-header{height:64px;}
  .site-header.is-scrolled{height:60px;}
  .brand__text{font-size:15px;}
  h1{font-size:28px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .article-head{padding:12px 0 24px;}
  .article-meta{font-size:12px;gap:8px 10px;}
  .article-cover{margin-top:22px;}
  .article-layout{padding:28px 0 0;}
  .article-body{padding:22px 18px;font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;}
  .toc-mobile{
    display:block;margin-bottom:18px;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);
  }
  .toc-mobile summary{
    list-style:none;cursor:pointer;padding:16px 18px;font-size:15px;font-weight:700;
    color:var(--brand-deep);display:flex;align-items:center;justify-content:space-between;
  }
  .toc-mobile summary::-webkit-details-marker{display:none;}
  .toc-mobile summary::after{content:"+";color:var(--accent);font-size:18px;line-height:1;}
  .toc-mobile[open] summary::after{content:"−";}
  .toc-mobile .toc-list{padding:0 10px 13px;}
  .sidebar-inner{position:static;margin-top:24px;}
  .post-nav{grid-template-columns:1fr;}
  .grid-x.grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-x.grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .card:hover{transform:none;box-shadow:var(--sh1);}
  .post-nav a:hover{transform:none;}
  .cta-form{flex-direction:column;width:100%;}
  .cta-form input{width:100%;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .article-body img{border-radius:var(--r-sm);}
  .to-top{right:14px;bottom:16px;width:44px;height:44px;}
}

/* roulang page: category1 */
:root{
  --brand-deep:#0F3D33;
  --brand:#17614F;
  --accent:#F0572A;
  --accent-2:#FFC93C;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE4;
  --line:#E4E0D6;
  --text-1:#171C1A;
  --text-2:#59635E;
  --text-3:#8A938E;
  --sh1:0 1px 2px rgba(15,61,51,.06);
  --sh2:0 8px 24px rgba(15,61,51,.10);
  --sh3:0 18px 44px rgba(15,61,51,.14);
  --r-sm:8px;
  --r-md:10px;
  --r-lg:14px;
  --r-img:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--text-1);font-weight:700;}
p{margin:0 0 1em;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;}
button,input{font-family:inherit;font-size:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:30px;}
.section-head .sub{color:var(--text-2);font-size:15px;margin:10px 0 0;}
.link-more{font-size:15px;font-weight:600;position:relative;padding-bottom:2px;border-bottom:1px solid transparent;}
.link-more::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .24s ease;}
.link-more:hover::after{width:100%;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-md);border:1px solid transparent;
  padding:13px 26px;font-size:16px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh1);}
.btn-primary:hover{background:#d94518;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-outline:hover{background:rgba(23,97,79,.08);color:var(--brand);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{color:var(--brand);background:transparent;padding:13px 18px;}
.btn-ghost:hover{color:var(--accent);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:var(--r-sm);}
.btn-block{width:100%;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:3px 10px;border-radius:999px;
  background:rgba(23,97,79,.10);color:var(--brand);
}
.badge--yellow{background:rgba(255,201,60,.28);color:#7a5300;}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--brand-deep);
  transition:height .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.site-header .nav-inner{
  display:flex;align-items:center;gap:24px;height:76px;
  transition:height .2s ease;
}
.site-header.is-scrolled{background:var(--brand-deep);box-shadow:var(--sh2);}
.site-header.is-scrolled .nav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:.02em;font-size:18px;white-space:nowrap;}
.brand:hover{color:#fff;}
.brand__mark{
  width:26px;height:26px;border:2px solid currentColor;border-radius:5px;
  position:relative;display:inline-block;flex:0 0 auto;
}
.brand__mark::before{content:"";position:absolute;left:4px;right:4px;top:8px;height:2px;background:var(--accent);}
.brand__mark::after{content:"";position:absolute;right:4px;bottom:4px;width:6px;height:6px;border-radius:50%;background:var(--accent-2);}
.main-nav{margin-left:12px;}
.main-nav ul{display:flex;align-items:center;gap:26px;}
.main-nav a{
  position:relative;display:inline-block;padding:6px 0;
  color:rgba(255,255,255,.86);font-size:16px;font-weight:500;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .24s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.is-active{color:#fff;font-weight:700;}
.main-nav a.is-active::after{width:100%;}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);border-radius:999px;
  padding:4px 6px 4px 16px;transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input{
  background:transparent;border:0;outline:none;color:#fff;
  width:156px;font-size:14px;padding:7px 0;
}
.nav-search input::placeholder{color:rgba(255,255,255,.55);}
.nav-search button{
  background:transparent;border:0;color:#fff;cursor:pointer;
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
}
.nav-search button:hover{color:var(--accent-2);}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px rgba(240,87,42,.18);}
.nav-burger{
  display:none;background:transparent;border:1px solid rgba(255,255,255,.28);
  color:#fff;width:44px;height:44px;border-radius:var(--r-sm);cursor:pointer;font-size:17px;
}
.nav-burger:hover{border-color:var(--accent);color:var(--accent-2);}
.nav-drawer{
  display:none;position:fixed;inset:0;z-index:80;background:#fff;
  padding:24px 20px;overflow-y:auto;
}
.nav-drawer.is-open{display:block;}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.nav-drawer__head .brand{color:var(--brand-deep);}
.nav-drawer__head .brand__mark{color:var(--brand-deep);}
.nav-drawer__close{background:transparent;border:1px solid var(--line);width:44px;height:44px;border-radius:var(--r-sm);font-size:18px;color:var(--text-1);cursor:pointer;}
.nav-drawer ul{border-top:1px solid var(--line);}
.nav-drawer li{border-bottom:1px solid var(--line);}
.nav-drawer a{display:flex;align-items:center;justify-content:space-between;font-size:18px;color:var(--text-1);height:56px;}
.nav-drawer a.is-active{color:var(--accent);font-weight:700;}
.nav-drawer a:hover{color:var(--accent);}
.nav-drawer .btn{margin-top:24px;}

/* 面包屑 */
.breadcrumb{padding:18px 0 0;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{margin:0 8px;color:var(--line);}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* 分类 banner */
.cat-banner{
  position:relative;min-height:260px;display:flex;align-items:flex-end;
  background-image:linear-gradient(rgba(15,61,51,.72),rgba(15,61,51,.72)),
    linear-gradient(180deg,rgba(15,61,51,.72) 0%,rgba(15,61,51,.10) 76%,rgba(246,244,239,.95) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover,cover,cover;
  background-position:center,center,center;
  color:#fff;border-radius:0;
}
.cat-banner__inner{padding:56px 0 44px;max-width:720px;}
.cat-banner .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent-2);margin-bottom:14px;
}
.cat-banner h1{font-size:40px;font-weight:800;color:#fff;margin-bottom:14px;}
.cat-banner p{color:rgba(255,255,255,.86);font-size:17px;margin:0;max-width:620px;}

/* 主体布局 */
.cat-main{padding:64px 0 88px;}
.cat-side{position:sticky;top:96px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);padding:10px 0;
}
.side-card h3{font-size:15px;letter-spacing:.06em;color:var(--text-2);padding:14px 22px 10px;font-weight:700;}
.side-card ul li a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 22px;font-size:15.5px;color:var(--text-2);
  border-left:3px solid transparent;transition:all .2s ease;
}
.side-card ul li a span.cnt{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.side-card ul li a:hover{background:var(--surface-2);color:var(--brand);}
.side-card ul li a.is-current{
  border-left-color:var(--accent);color:var(--brand-deep);font-weight:700;background:rgba(240,87,42,.05);
}
.side-note{
  margin-top:20px;background:var(--brand-deep);color:rgba(255,255,255,.86);
  border-radius:var(--r-lg);padding:22px;font-size:14px;line-height:1.8;
}
.side-note strong{display:block;color:#fff;font-size:16px;margin-bottom:8px;}
.side-note a{color:var(--accent-2);}
.side-note a:hover{color:#fff;}

/* 图文列表卡 */
.feed-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;}
.feed-item{display:flex;gap:22px;padding:24px;border-bottom:1px solid var(--line);transition:background-color .2s ease;}
.feed-item:last-child{border-bottom:0;}
.feed-item:hover{background:#FBFAF6;}
.feed-item__thumb{
  flex:0 0 40%;max-width:40%;border-radius:var(--r-img);overflow:hidden;
  background:var(--surface-2);aspect-ratio:16/9;
}
.feed-item__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feed-item:hover .feed-item__thumb img{transform:scale(1.04);}
.feed-item__body{flex:1 1 60%;display:flex;flex-direction:column;min-width:0;}
.feed-item__body h3{font-size:20px;margin:12px 0 8px;}
.feed-item__body h3 a{color:var(--text-1);}
.feed-item__body h3 a:hover{color:var(--accent);}
.feed-item__body p{color:var(--text-2);font-size:15.5px;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feed-item__meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.feed-item__meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line);}

/* 指标带 */
.metrics{background:var(--brand-deep);color:#fff;border-radius:var(--r-lg);padding:40px 32px;}
.metrics .grid-x{margin:0 -16px;}
.metrics .cell{padding:12px 16px;}
.metric__num{font-size:36px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;line-height:1.1;}
.metric__label{font-size:14px;color:rgba(255,255,255,.78);margin-top:8px;}

/* 说明区 */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:32px;}
.panel h2{font-size:24px;margin-bottom:16px;position:relative;padding-left:14px;}
.panel h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--accent);border-radius:2px;}
.panel p{color:var(--text-2);font-size:16px;}
.check-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15.5px;color:var(--text-2);}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--brand);margin-top:6px;font-size:13px;}

/* FAQ */
.faq-card{background:var(--surface);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;font-size:17px;font-weight:600;color:var(--text-1);
}
.faq-q:hover{color:var(--accent);}
.faq-q .ico{color:var(--brand);font-size:15px;transition:transform .24s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q{color:var(--brand-deep);}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a__inner{padding:0 24px 20px;font-size:16px;line-height:1.8;color:var(--text-2);}

/* CTA */
.cta-band{background:var(--brand-deep);color:#fff;border-radius:var(--r-lg);padding:52px 40px;}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.80);margin:0;font-size:16px;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:13px 18px;font-size:16px;color:var(--text-1);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,97,79,.14);}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.62);}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(246,244,239,.82);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:rgba(246,244,239,.72);line-height:1.85;margin:0;}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.04em;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(246,244,239,.76);font-size:14.5px;position:relative;padding-bottom:2px;}
.footer-links a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);transition:width .24s ease;}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{width:100%;}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;margin-bottom:12px;color:rgba(246,244,239,.76);line-height:1.7;}
.footer-contact i{color:var(--accent-2);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(246,244,239,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(246,244,239,.62);
}
.footer-bottom a{color:rgba(246,244,239,.76);}
.footer-bottom a:hover{color:var(--accent);}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--brand-deep);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;
  box-shadow:var(--sh2);opacity:0;visibility:hidden;transition:all .24s ease;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--accent);transform:translateY(-3px);}

/* 分隔 */
.divider{height:1px;background:rgba(15,61,51,.08);border:0;margin:0;}

@media screen and (max-width:1023px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .cat-banner h1{font-size:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-side{position:static;margin-bottom:24px;}
  .side-card ul{display:flex;flex-wrap:wrap;gap:6px;padding:12px;}
  .side-card h3{padding-left:12px;}
  .side-card ul li a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:9px 14px;font-size:14px;}
  .side-card ul li a.is-current{border-color:var(--accent);background:rgba(240,87,42,.08);}
  .side-note{margin-bottom:24px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-burger{display:grid;place-items:center;}
  .site-header .nav-inner{height:60px;}
  .site-header.is-scrolled .nav-inner{height:56px;}
  .brand{font-size:16px;}
  .cat-banner{min-height:230px;}
  .cat-banner h1{font-size:28px;}
  .cat-banner__inner{padding:40px 0 32px;}
  .cat-main{padding:40px 0 64px;}
  .feed-item{flex-direction:column;gap:14px;padding:20px 16px;}
  .feed-item__thumb{flex:0 0 auto;max-width:100%;width:100%;}
  .feed-item__body h3{font-size:18px;}
  .metrics{padding:28px 20px;}
  .metric__num{font-size:28px;}
  .panel{padding:24px 18px;}
  .cta-band{padding:36px 20px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand-deep:#0F3D33;
  --brand:#17614F;
  --accent:#F0572A;
  --accent-2:#FFC93C;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE4;
  --line:#E4E0D6;
  --text-1:#171C1A;
  --text-2:#59635E;
  --text-3:#8A938E;
  --sh1:0 1px 2px rgba(15,61,51,.06);
  --sh2:0 8px 24px rgba(15,61,51,.10);
  --sh3:0 18px 44px rgba(15,61,51,.14);
  --r-sm:10px;
  --r-md:12px;
  --r-lg:14px;
  --r-pill:999px;
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:40px;
  --sp-5:64px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--text-1);
  background:var(--bg);
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--text-1)}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;cursor:pointer}
input,button,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(240,87,42,.18)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:88px 0}
.section--tight{padding:64px 0}

/* 覆盖 Foundation 默认皮肤 */
.button,button.button{background:var(--brand);border-radius:var(--r-sm);font-family:var(--font)}
.accordion,.tabs,.callout{background:transparent;border:0}
.reveal{border:0}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-block;
  font-size:12px;
  line-height:1;
  padding:6px 12px;
  border-radius:var(--r-pill);
  background:#E4EFEA;
  color:var(--brand);
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge--yellow{background:var(--accent-2);color:#4A3400}
.badge--ghost{background:rgba(255,255,255,.14);color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-sm);
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:background .24s ease,color .24s ease,transform .2s ease,box-shadow .24s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 6px 16px rgba(240,87,42,.24);
}
.btn-primary:hover{
  background:linear-gradient(180deg,#F4643C,#DC4B20);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 22px rgba(240,87,42,.30);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(240,87,42,.24)}
.btn-outline{
  background:transparent;
  color:var(--brand-deep);
  border-color:var(--brand);
}
.btn-outline:hover{background:#E4EFEA;color:var(--brand-deep);border-color:var(--brand);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-onDark{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-onDark:hover{background:rgba(255,255,255,.10);color:#fff;border-color:#fff}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}

.link-more{
  position:relative;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  padding-bottom:3px;
}
.link-more::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:0;
  background:var(--accent);
  transition:width .26s ease;
}
.link-more:hover::after{width:100%}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--brand-deep);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh2);background:#0C332B}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:76px;
  transition:height .2s ease;
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:#fff;
}
.brand:hover{color:#fff}
.brand__mark{
  position:relative;
  width:28px;height:28px;
  border-radius:8px;
  background:var(--accent);
  flex:0 0 auto;
}
.brand__mark::before{
  content:"";
  position:absolute;left:6px;top:8px;
  width:16px;height:2px;background:#fff;
  box-shadow:0 5px 0 #fff;
}
.brand__mark::after{
  content:"";
  position:absolute;left:6px;top:18px;
  width:8px;height:2px;background:#fff;
}
.brand__text{font-size:17px;font-weight:800;letter-spacing:.02em;white-space:nowrap}

.main-nav{flex:1 1 auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:rgba(255,255,255,.80);
  border-radius:8px;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:700}
.main-nav a.is-active::after{transform:scaleX(1)}

.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-pill);
  padding:2px 2px 2px 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search:focus-within{
  border-color:var(--brand);
  background:rgba(255,255,255,.96);
  box-shadow:0 0 0 4px rgba(23,97,79,.22);
}
.nav-search input{
  width:150px;
  height:32px;
  border:0;
  background:transparent;
  color:#fff;
  font-size:14px;
  outline:none;
}
.nav-search:focus-within input{color:var(--text-1)}
.nav-search input::placeholder{color:rgba(255,255,255,.60)}
.nav-search:focus-within input::placeholder{color:var(--text-3)}
.nav-search button{
  width:34px;height:32px;
  border:0;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  color:#fff;
  font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.nav-search:focus-within button{background:var(--accent);color:#fff}
.btn-ghost{
  background:transparent;
  color:rgba(255,255,255,.86);
  border-color:rgba(255,255,255,.28);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(255,255,255,.24);
  border-radius:10px;
  background:transparent;
  color:#fff;
  font-size:17px;
}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--brand-deep)}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  padding:14px 0;
  font-size:13px;
  color:rgba(255,255,255,.66);
}
.crumb a{color:rgba(255,255,255,.66)}
.crumb a:hover{color:var(--accent-2)}
.crumb .sep{color:rgba(255,255,255,.34)}
.crumb .current{color:var(--accent-2);font-weight:600}

/* ============ Hero（居中 + 标签筛选） ============ */
.hero-guide{
  background:var(--bg);
  padding:76px 0 56px;
  text-align:center;
  border-bottom:1px solid rgba(15,61,51,.08);
}
.hero-guide .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--brand);
  background:#E4EFEA;
  border-radius:var(--r-pill);
  padding:7px 14px;
  margin-bottom:20px;
}
.hero-guide h1{
  font-size:40px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--brand-deep);
}
.hero-guide .hero-lead{
  max-width:760px;
  margin:20px auto 0;
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
}
.hero-guide .hero-note{
  max-width:760px;
  margin:14px auto 0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-3);
}
.tag-filter{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
  margin-top:32px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);
  font-size:14px;
  transition:all .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.tag.is-active{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  font-weight:600;
  box-shadow:0 6px 16px rgba(240,87,42,.22);
}
.hero-stats{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:44px;
  margin-top:40px;
}
.hero-stats .stat{text-align:center}
.hero-stats .num{
  font-size:26px;
  font-weight:800;
  color:var(--brand-deep);
  line-height:1.2;
}
.hero-stats .lbl{font-size:13px;color:var(--text-3);margin-top:4px}

/* ============ 板块标题 ============ */
.section-head{margin-bottom:44px}
.section-head--center{text-align:center;margin-left:auto;margin-right:auto;max-width:760px}
.section-head .kicker{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent);
  margin-bottom:12px;
}
.section-head h2{
  font-size:30px;
  font-weight:700;
  color:var(--brand-deep);
  position:relative;
}
.section-head--center h2::after{
  content:"";
  display:block;
  width:44px;height:3px;
  background:var(--accent);
  border-radius:2px;
  margin:16px auto 0;
}
.section-head p{
  margin-top:16px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}

/* ============ 指南卡片网格 ============ */
.guide-grid{padding-bottom:56px}
.guide-card{
  position:relative;
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh1);
  margin-bottom:32px;
  color:inherit;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.guide-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:var(--accent);
  opacity:0;
  transition:opacity .24s ease;
  z-index:2;
}
.guide-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh2);
  border-color:#D8D3C6;
  color:inherit;
}
.guide-card:hover::before{opacity:1}
.guide-thumb{
  position:relative;
  aspect-ratio:3/2;
  background:var(--surface-2);
  overflow:hidden;
}
.guide-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.guide-card:hover .guide-thumb img{transform:scale(1.04)}
.guide-thumb .thumb-badge{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
}
.guide-body{padding:22px 24px 24px}
.guide-body h3{
  font-size:20px;
  font-weight:700;
  line-height:1.45;
  margin:12px 0 10px;
  color:var(--brand-deep);
}
.guide-body .excerpt{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.guide-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid rgba(15,61,51,.08);
  font-size:13px;
  color:var(--text-3);
}
.guide-foot .arrow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border-radius:50%;
  background:#E4EFEA;
  color:var(--brand);
  font-size:12px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.guide-card:hover .guide-foot .arrow{background:var(--accent);color:#fff;transform:translateX(3px)}
.stagger{margin-top:0}

/* ============ 学习路径四步 ============ */
.flow-section{
  background:var(--surface);
  border-top:1px solid rgba(15,61,51,.08);
  border-bottom:1px solid rgba(15,61,51,.08);
}
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  counter-reset:flow;
}
.flow-item{position:relative;padding-right:12px}
.flow-dot{
  position:relative;
  width:44px;height:44px;
  border-radius:50%;
  background:#E4EFEA;
  color:var(--brand);
  font-size:16px;
  font-weight:800;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.flow-item.is-current .flow-dot{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(240,87,42,.24)}
.flow-item::after{
  content:"";
  position:absolute;
  left:56px;
  top:22px;
  right:-14px;
  height:1px;
  background:var(--line);
}
.flow-item:last-child::after{display:none}
.flow-item h3{font-size:18px;color:var(--brand-deep);margin-bottom:10px}
.flow-item p{font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 数据指标 ============ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(15,61,51,.08);
  border:1px solid rgba(15,61,51,.08);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.metric{
  background:var(--surface);
  padding:32px 26px;
  text-align:center;
}
.metric .num{
  font-size:32px;
  font-weight:800;
  color:var(--brand-deep);
  line-height:1.2;
  letter-spacing:-.01em;
}
.metric .num em{
  font-style:normal;
  font-size:16px;
  font-weight:700;
  color:var(--accent);
  margin-left:3px;
}
.metric .lbl{margin-top:8px;font-size:14px;color:var(--text-2)}
.metric .sub{margin-top:4px;font-size:13px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  background:var(--surface);
  border-radius:var(--r-lg);
  margin-bottom:12px;
  box-shadow:var(--sh1);
  overflow:hidden;
  transition:box-shadow .24s ease;
}
.faq-item.is-open{box-shadow:var(--sh2)}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--brand-deep);
}
.faq-q:hover{color:var(--accent)}
.faq-q i{
  flex:0 0 auto;
  font-size:14px;
  color:var(--accent);
  transition:transform .26s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{
  padding:0 24px 22px;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  border-top:1px solid rgba(15,61,51,.08);
  padding-top:16px;
}

/* ============ CTA 通栏 ============ */
.cta-band{
  background:var(--brand-deep);
  padding:72px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:48px;
}
.cta-copy{flex:1 1 auto;max-width:560px}
.cta-copy h2{
  font-size:30px;
  font-weight:700;
  color:#fff;
  line-height:1.35;
}
.cta-copy p{
  margin-top:14px;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.76);
}
.cta-form{flex:0 0 auto;width:100%;max-width:440px}
.subscribe{
  display:flex;
  gap:10px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.20);
  border-radius:var(--r-sm);
  padding:8px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe:focus-within{
  border-color:var(--accent-2);
  box-shadow:0 0 0 4px rgba(255,201,60,.18);
}
.subscribe input{
  flex:1 1 auto;
  min-width:0;
  height:46px;
  border:0;
  background:transparent;
  color:#fff;
  font-size:15px;
  padding:0 14px;
  outline:none;
}
.subscribe input::placeholder{color:rgba(255,255,255,.55)}
.subscribe .btn{flex:0 0 auto}
.privacy-note{
  margin-top:12px;
  font-size:13px;
  line-height:1.7;
  color:rgba(255,255,255,.58);
}
.form-error{
  display:none;
  margin-top:8px;
  font-size:13px;
  color:#FFB59E;
}
.form-error.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.74);
  padding:72px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  max-width:320px;
}
.footer-title{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.68);
  position:relative;
}
.footer-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:-3px;
  height:1px;width:0;
  background:var(--accent);
  transition:width .24s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.68);
  margin-bottom:14px;
}
.footer-contact i{color:var(--accent-2);margin-top:5px;flex:0 0 auto}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;
  color:rgba(255,255,255,.56);
}
.footer-bottom a{color:rgba(255,255,255,.68)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:46px;height:46px;
  border-radius:50%;
  border:0;
  background:var(--brand-deep);
  color:#fff;
  font-size:15px;
  display:none;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh2);
  z-index:70;
  transition:background .22s ease,transform .22s ease;
}
.to-top.is-show{display:flex}
.to-top:hover{background:var(--accent);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding-left:20px;padding-right:20px}
}
@media (max-width:1023px){
  body{font-size:16px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .hero-guide{padding:56px 0 44px}
  .hero-guide h1{font-size:32px}
  .section-head h2{font-size:24px}
  .cta-copy h2{font-size:24px}
  .flow{grid-template-columns:repeat(2,1fr);gap:32px}
  .flow-item::after{display:none}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .cta-form{max-width:100%}
  .nav-search input{width:110px}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.85}
  .container{padding-left:16px;padding-right:16px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}

  .nav-inner{height:60px;gap:10px}
  .site-header.is-scrolled .nav-inner{height:60px}
  .brand__text{font-size:16px}
  .nav-search{display:none}
  .nav-tools .btn-ghost{display:none}
  .nav-burger{display:inline-flex}
  .main-nav{
    position:fixed;
    top:60px;left:0;right:0;bottom:0;
    background:#fff;
    padding:12px 16px 40px;
    transform:translateX(100%);
    transition:transform .26s ease;
    overflow-y:auto;
    z-index:60;
    box-shadow:var(--sh3);
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{display:block}
  .main-nav li{border-bottom:1px solid var(--line)}
  .main-nav a{
    display:flex;
    align-items:center;
    height:56px;
    padding:0;
    font-size:18px;
    color:var(--text-1);
    border-radius:0;
  }
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--accent)}
  .main-nav a:hover{color:var(--accent)}

  .crumb{font-size:12px;padding:12px 0}
  .hero-guide{padding:44px 0 36px}
  .hero-guide h1{font-size:28px}
  .hero-guide .hero-lead{font-size:16px}
  .hero-stats{gap:24px;margin-top:30px}
  .hero-stats .num{font-size:22px}
  .tag-filter{gap:8px;margin-top:24px}
  .tag{height:36px;padding:0 14px;font-size:13px}

  .section-head{margin-bottom:28px}
  .guide-body{padding:18px 18px 20px}
  .guide-body h3{font-size:18px}
  .stagger{margin-top:0}
  .guide-grid{padding-bottom:24px}
  .guide-card{margin-bottom:16px}

  .flow{grid-template-columns:1fr;gap:24px}
  .metrics{grid-template-columns:1fr}
  .metric{padding:24px 20px}
  .metric .num{font-size:26px}

  .faq-q{font-size:16px;padding:14px 18px}
  .faq-a p{padding:14px 18px 20px;font-size:15px}

  .cta-band{padding:48px 0}
  .subscribe{flex-direction:column;padding:10px}
  .subscribe input{height:44px;padding:0 10px}
  .subscribe .btn{width:100%}

  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px}

  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}

/* roulang page: category3 */
:root{
  --brand-deep:#0F3D33;
  --brand:#17614F;
  --accent:#F0572A;
  --accent-2:#FFC93C;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE4;
  --line:#E4E0D6;
  --text-1:#171C1A;
  --text-2:#59635E;
  --text-3:#8A938E;
  --sh1:0 1px 2px rgba(15,61,51,.06);
  --sh2:0 8px 24px rgba(15,61,51,.10);
  --sh3:0 18px 44px rgba(15,61,51,.14);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--text-1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.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}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--brand-deep);color:#F3F1EA}
.section--alt{background:var(--surface-2)}
.section-head{margin-bottom:40px}
.section-head .kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--accent);text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:30px;font-weight:700;line-height:1.35;color:var(--brand-deep)}
.section-head p{margin-top:12px;max-width:760px;color:var(--text-2);font-size:16px;line-height:1.85}
.section--dark .section-head h2,.section--dark .section-head p{color:#F3F1EA}
.section--dark .section-head p{color:rgba(243,241,234,.78)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:70;background:var(--brand-deep);transition:box-shadow .2s ease,background-color .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh2);background:#0C352C}
.nav-inner{display:flex;align-items:center;gap:26px;height:76px;transition:height .2s ease}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:.02em}
.brand:hover{color:#fff}
.brand__mark{width:26px;height:26px;border-radius:7px;background:var(--accent);position:relative;flex:0 0 26px}
.brand__mark::before{content:"";position:absolute;left:6px;top:6px;right:6px;bottom:6px;border:2px solid #fff;border-radius:3px;border-bottom-color:transparent;border-right-color:transparent;transform:rotate(-45deg)}
.brand__text{font-size:18px;white-space:nowrap}
.main-nav{flex:1}
.main-nav ul{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0}
.main-nav a{position:relative;display:inline-block;padding:6px 2px;color:rgba(255,255,255,.84);font-size:15px;font-weight:500;transition:color .2s ease}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .24s ease}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{width:100%}
.main-nav a.is-active{color:#fff;font-weight:700}
.main-nav a.is-active::after{width:100%}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{display:flex;align-items:center;gap:6px;padding:4px 4px 4px 12px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.12);border-radius:10px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}
.nav-search input{width:150px;border:0;background:transparent;color:#fff;font-size:14px;outline:none;padding:6px 0}
.nav-search input::placeholder{color:rgba(255,255,255,.62)}
.nav-search button{width:32px;height:32px;border:0;border-radius:8px;background:rgba(255,255,255,.16);color:#fff;cursor:pointer;transition:background-color .2s ease}
.nav-search button:hover{background:var(--accent)}
.nav-search:focus-within{border-color:var(--accent);background:rgba(255,255,255,.18);box-shadow:0 0 0 4px rgba(240,87,42,.18)}
.nav-burger{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.24);border-radius:10px;background:transparent;color:#fff;font-size:17px;cursor:pointer}
.nav-burger:hover{border-color:var(--accent);color:var(--accent)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;transition:transform .24s ease,background-color .24s ease,box-shadow .24s ease,border-color .24s ease,color .24s ease;text-decoration:none}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#D8481F;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-ghost{border-color:rgba(23,97,79,.42);color:var(--brand-deep);background:transparent}
.btn-ghost:hover{background:rgba(23,97,79,.08);color:var(--brand-deep);transform:translateY(-2px)}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.site-header .btn-ghost{color:#fff;border-color:rgba(255,255,255,.34)}
.site-header .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);position:relative;padding-bottom:2px}
.link-more::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:width .24s ease}
.link-more:hover{color:var(--accent)}
.link-more:hover::after{width:100%}

/* 徽章 */
.badge{display:inline-block;font-size:12px;font-weight:600;line-height:1.6;padding:3px 10px;border-radius:999px;background:rgba(23,97,79,.10);color:var(--brand-deep)}
.badge--accent{background:rgba(255,201,60,.35);color:#6B4A00}
.badge--solid{background:var(--accent);color:#fff}

/* ============ 页面头部带 ============ */
.page-banner{position:relative;color:#fff;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;overflow:hidden}
.page-banner::after{content:"";position:absolute;inset:0;background:rgba(15,61,51,.82)}
.page-banner::before{content:"";position:absolute;left:0;right:0;bottom:0;height:26%;background:linear-gradient(180deg,rgba(15,61,51,0) 0%,rgba(15,61,51,.55) 100%);z-index:1}
.page-banner .container{position:relative;z-index:2;padding-top:46px;padding-bottom:54px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--accent-2)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:var(--accent-2);font-weight:600}
.banner-lead{max-width:820px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86)}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.banner-tags span{font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.2)}

/* ============ 服务支持主体 ============ */
.support-layout{align-items:flex-start}
.support-aside{position:sticky;top:96px}
.panel-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;box-shadow:var(--sh1)}
.panel-card h1{font-size:38px;font-weight:800;line-height:1.35;color:var(--brand-deep);margin:16px 0 0}
.panel-card .aside-lead{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.9}
.aside-list{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:12px}
.aside-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.75}
.aside-list li i{color:var(--brand);margin-top:7px;font-size:13px}
.aside-actions{display:grid;gap:12px;margin-top:28px}
.aside-note{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--text-3);line-height:1.8}
.aside-note strong{display:block;color:var(--text-1);font-size:15px;font-weight:700;margin-bottom:6px}
.aside-photo{margin-top:20px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--surface-2);box-shadow:var(--sh1)}
.aside-photo img{width:100%;aspect-ratio:4/3;object-fit:cover}

.support-content{display:grid;gap:32px}
.block-title{font-size:22px;font-weight:700;color:var(--brand-deep);line-height:1.4;margin-bottom:8px}
.block-sub{font-size:15px;color:var(--text-2);margin-bottom:26px}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none;margin:0;padding:0;counter-reset:step}
.steps li{position:relative;padding-top:48px}
.steps li::before{content:"";position:absolute;top:15px;left:34px;right:-18px;height:2px;background:var(--line)}
.steps li:last-child::before{display:none}
.steps li.is-current::before{background:var(--accent)}
.step-num{position:absolute;top:0;left:0;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;background:#fff;border:2px solid var(--brand);color:var(--brand-deep)}
.steps li.is-current .step-num{background:var(--accent);border-color:var(--accent);color:#fff}
.steps h3{font-size:17px;font-weight:700;margin:0 0 6px;color:var(--text-1)}
.steps p{font-size:14px;line-height:1.8;color:var(--text-2);margin:0}

/* FAQ */
.faq-list{background:var(--surface);border-radius:var(--radius);box-shadow:var(--sh1);overflow:hidden;border:1px solid var(--line)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 24px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);cursor:pointer;transition:background-color .2s ease,color .2s ease}
.faq-q:hover{background:rgba(23,97,79,.045);color:var(--brand-deep)}
.faq-q .faq-icon{flex:0 0 22px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:14px;transition:transform .28s ease,color .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a p{padding:0 24px 20px;font-size:16px;line-height:1.8;color:var(--text-2);margin:0}

/* 联系入口条 */
.contact-bar{background:var(--brand-deep);color:#F3F1EA;border-radius:var(--radius);padding:26px 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;box-shadow:var(--sh2)}
.contact-bar h3{font-size:19px;font-weight:700;color:#fff;margin:0 0 6px}
.contact-bar p{font-size:14px;color:rgba(243,241,234,.76);margin:0;line-height:1.75}

/* 服务范围卡片 */
.card{position:relative;display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--sh1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.card::after{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);opacity:0;transition:opacity .24s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D8D3C6}
.card:hover::after{opacity:1}
.card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2)}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:19px;font-weight:700;line-height:1.45;color:var(--text-1)}
.card__text{font-size:15px;line-height:1.8;color:var(--text-2)}
.card__more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}

/* 指标 */
.metrics{border-top:1px solid rgba(15,61,51,.08);padding-top:44px;margin-top:56px}
.metric .num{font-size:36px;font-weight:800;color:var(--brand-deep);line-height:1.2;letter-spacing:-.01em}
.metric .num span{font-size:18px;font-weight:700;color:var(--brand);margin-left:4px}
.metric .label{margin-top:8px;font-size:14px;color:var(--text-2)}
.metric{border-left:3px solid var(--accent-2);padding-left:16px}

/* CTA 表单 */
.cta-form{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:7px;min-width:260px;flex:1}
.field label{font-size:13px;color:rgba(243,241,234,.72);font-weight:600}
.field input{padding:13px 15px;border-radius:10px;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}
.field input::placeholder{color:rgba(255,255,255,.5)}
.field input:focus{border-color:var(--accent);background:rgba(255,255,255,.14);box-shadow:0 0 0 4px rgba(240,87,42,.18)}
.form-note{width:100%;font-size:13px;color:rgba(243,241,234,.6);margin-top:4px}

/* 返回顶部 */
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;border:0;background:var(--brand-deep);color:#fff;font-size:16px;cursor:pointer;box-shadow:var(--sh2);opacity:0;visibility:hidden;transform:translateY(8px);transition:.24s ease;z-index:60}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent)}

/* 移动端抽屉 */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:#fff;transform:translateY(-100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:18px 20px 32px;overflow-y:auto}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head .brand{color:var(--brand-deep)}
.drawer-head .brand__text{color:var(--brand-deep)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text-1);font-size:17px;cursor:pointer}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}
.drawer-search input{flex:1;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;outline:none}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,97,79,.12)}
.drawer-search button{width:46px;border:0;border-radius:10px;background:var(--brand-deep);color:#fff;cursor:pointer}
.drawer-nav ul{list-style:none;margin:0 0 22px;padding:0}
.drawer-nav li+li{border-top:1px solid var(--line)}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:56px;font-size:18px;font-weight:600;color:var(--text-1)}
.drawer-nav a.is-active{color:var(--accent)}
.drawer-nav a i{font-size:13px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#E9E6DD;padding:72px 0 28px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(233,230,221,.72);max-width:320px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-links a{color:rgba(233,230,221,.76);font-size:14px;position:relative;padding-bottom:2px}
.footer-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:width .24s ease}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(233,230,221,.76);line-height:1.75}
.footer-contact i{color:var(--accent-2);margin-top:6px;font-size:13px}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(233,230,221,.62)}
.footer-bottom a{color:rgba(233,230,221,.72)}
.footer-bottom a:hover{color:var(--accent-2)}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .main-nav,.nav-search{display:none}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center}
  .support-aside{position:static}
  .panel-card h1{font-size:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media screen and (max-width:900px){
  .section{padding:64px 0}
  .container{padding:0 20px}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px}
  .steps li:nth-child(2n)::before{display:none}
  .section-head h2{font-size:24px}
}
@media screen and (max-width:639px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .nav-inner{height:64px;gap:12px}
  .site-header.is-scrolled .nav-inner{height:64px}
  .brand__text{font-size:16px}
  .nav-tools .btn{display:none}
  .page-banner .container{padding-top:30px;padding-bottom:38px}
  .panel-card{padding:24px 20px}
  .panel-card h1{font-size:28px}
  .btn{width:100%}
  .nav-burger,.drawer-close{width:44px;height:44px}
  .nav-tools .nav-burger{display:inline-flex;width:44px}
  .steps{grid-template-columns:1fr;gap:22px}
  .steps li{padding-top:44px}
  .steps li::before{display:none}
  .steps h3{font-size:16px}
  .faq-q{font-size:16px;padding:15px 18px;gap:12px}
  .faq-a p{padding:0 18px 18px;font-size:15px}
  .contact-bar{padding:22px 20px}
  .card:hover{transform:none}
  .metrics{padding-top:32px;margin-top:40px}
  .metric .num{font-size:30px}
  .field{min-width:100%}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:52px 0 22px}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:18px}
}