/* roulang page: index */
:root{
  --brand-900:#0F2E24;
  --brand-700:#1C5C46;
  --brand-500:#2F7F62;
  --accent:#E2542A;
  --accent-dark:#C8451F;
  --moss:#7FB69E;
  --moss-100:#E7F0EB;
  --bg:#FAF8F4;
  --bg-2:#F2EFE9;
  --card:#FFFFFF;
  --border:#E4E0D7;
  --line:#EDE9E1;
  --text:#16211D;
  --body:#3A4742;
  --muted:#7C877F;
  --ok:#2F9E6B;
  --warn:#D98A1F;
  --err:#C8442F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(15,46,36,.06);
  --sh-2:0 10px 28px rgba(15,46,36,.10);
  --sh-3:0 16px 40px rgba(15,46,36,.18);
  --sidebar-w:248px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.3;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ===== 左侧 App Shell ===== */
.app{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);
  flex:0 0 var(--sidebar-w);
  background:var(--brand-900);
  color:#fff;
  position:fixed;
  top:0;left:0;bottom:0;
  display:flex;
  flex-direction:column;
  padding:26px 18px 20px;
  overflow-y:auto;
  z-index:60;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:999px}
.logo{display:flex;align-items:center;gap:12px;padding:0 8px 22px;border-bottom:1px solid rgba(255,255,255,.12)}
.logo__mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  color:#fff;font-weight:800;font-size:16px;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(226,84,42,.35);
}
.logo__text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.logo__text strong{font-size:16px;color:#fff;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.logo__text em{font-style:normal;font-size:12px;color:var(--moss);letter-spacing:1px}
.side-nav{margin-top:20px;display:flex;flex-direction:column;gap:4px}
.side-nav__title{font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.42);padding:0 12px 8px}
.nav__link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:8px;
  font-size:15px;
  color:rgba(255,255,255,.76);
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.nav__link i{width:20px;text-align:center;font-size:15px;flex:0 0 20px}
.nav__link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav__link.is-active{background:rgba(255,255,255,.10);color:#fff;font-weight:600}
.nav__link.is-active::before{
  content:"";position:absolute;left:-18px;top:8px;bottom:8px;width:3px;
  background:var(--accent);border-radius:0 3px 3px 0;
}
.side-cta{
  margin-top:24px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;
  padding:13px 16px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(226,84,42,.28);
  transition:background-color .18s ease,transform .18s ease;
}
.side-cta:hover{background:var(--accent-dark);transform:translateY(-1px)}
.side-cta:active{transform:translateY(1px)}
.side-foot{
  margin-top:auto;padding:16px 12px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;line-height:1.9;color:rgba(255,255,255,.46);
}
.side-foot span{display:block}

/* ===== 顶部移动栏 & 抽屉 ===== */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:var(--brand-900);
  align-items:center;justify-content:space-between;
  padding:0 16px;
  box-shadow:0 2px 12px rgba(15,46,36,.22);
}
.topbar__logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:15px;font-weight:700}
.topbar__logo .logo__mark{width:32px;height:32px;flex:0 0 32px;font-size:14px;border-radius:10px}
.topbar__toggle{
  width:42px;height:42px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:19px;background:rgba(255,255,255,.10);
  transition:background-color .18s ease;
}
.topbar__toggle:hover{background:rgba(255,255,255,.2)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,46,36,.55);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;max-width:86vw;z-index:90;
  background:var(--brand-900);color:#fff;
  transform:translateX(-100%);
  transition:transform .2s ease;
  padding:24px 18px;overflow-y:auto;
  box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer__close{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.1);color:#fff;display:flex;align-items:center;justify-content:center}

/* ===== 主内容区 ===== */
.main{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column}
.crumb-bar{background:var(--bg-2);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.crumb-bar .container{display:flex;align-items:center;gap:8px;height:44px}
.crumb-bar a:hover{color:var(--accent)}
.crumb-bar .sep{color:#C6C1B6}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff}
.hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(15,46,36,.95) 0%,rgba(15,46,36,.82) 46%,rgba(15,46,36,.58) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-60px;bottom:-70px;width:260px;height:260px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.30) 0 6px,transparent 6px 15px);
  pointer-events:none;
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding-top:84px;padding-bottom:84px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--moss-100);color:var(--brand-700);
  font-size:13px;line-height:26px;font-weight:600;letter-spacing:.3px;
}
.hero .badge{background:rgba(127,182,158,.20);color:#CFE7DB}
.hero h1{
  font-size:42px;line-height:1.28;color:#fff;margin:20px 0 18px;letter-spacing:.4px;
}
.hero__lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.80);max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;letter-spacing:.3px;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(226,84,42,.30)}
.btn--primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(200,69,31,.34)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(200,69,31,.3)}
.btn--ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn--outline{border:1.5px solid var(--brand-700);color:var(--brand-700)}
.btn--outline:hover{background:var(--moss-100)}
.btn--sm{height:42px;padding:0 20px;font-size:15px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important}
.hero__stats{display:flex;flex-wrap:wrap;gap:0}
.hero__stats li{
  padding:0 26px;border-left:1px solid rgba(255,255,255,.24);
}
.hero__stats li:first-child{padding-left:0;border-left:0}
.hero__stats strong{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.3;font-variant-numeric:tabular-nums}
.hero__stats span{font-size:14px;color:rgba(255,255,255,.66)}
.hero__media{position:relative}
.hero__media img{
  width:100%;border-radius:var(--r-img);
  box-shadow:0 22px 50px rgba(0,0,0,.35);
  border:1px solid rgba(255,255,255,.14);
}

/* ===== 通用板块 ===== */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-2)}
.section__head{max-width:720px;margin-bottom:44px}
.section__head h2{font-size:28px;line-height:1.35;position:relative;padding-left:18px}
.section__head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent);
}
.section__head p{margin-top:14px;color:var(--muted);font-size:16px}
.section__head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.link-arrow{color:var(--brand-700);font-weight:600;border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ===== 主张条 ===== */
.tenets{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.tenets__grid{display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.tenet{padding:22px 0;border-top:1px solid var(--line)}
.tenet:nth-child(-n+2){border-top:0;padding-top:0}
.tenet__no{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--accent);font-variant-numeric:tabular-nums}
.tenet h3{font-size:18px;margin:8px 0 6px}
.tenet p{font-size:15px;color:var(--muted);line-height:1.75;margin:0}

/* ===== 使用阶段时间线 ===== */
.story{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:start}
.story__media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1)}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:2px;background:var(--line)}
.step{position:relative;padding-bottom:30px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-26px;top:9px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--accent);
}
.step__meta{font-size:13px;letter-spacing:1px;color:var(--accent);font-weight:600}
.step h3{font-size:19px;margin:6px 0 8px}
.step p{font-size:15px;color:var(--muted);line-height:1.8;margin:0}

/* ===== 精选卡片 ===== */
.picks{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pick{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pick:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--moss)}
.pick__thumb{overflow:hidden;background:var(--moss-100)}
.pick__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .45s ease}
.pick:hover .pick__thumb img{transform:scale(1.03)}
.pick__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.pick__body h3{font-size:18px;line-height:1.45;transition:color .18s ease}
.pick:hover .pick__body h3{color:var(--accent)}
.pick__body p{font-size:15px;color:var(--muted);line-height:1.75;margin:0}
.pick__more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700)}
.pick--lead{grid-column:span 2}
.pick--lead .pick__thumb img{aspect-ratio:21/9}
.pick--lead .pick__body h3{font-size:22px}

/* ===== 最新信息 ===== */
.news{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start}
.news__aside{position:sticky;top:36px}
.news__aside h2{font-size:26px;line-height:1.35;padding-left:18px;position:relative}
.news__aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent)}
.news__aside p{margin:16px 0 20px;font-size:15px;color:var(--muted);line-height:1.8}
.news__list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news__item{
  display:grid;grid-template-columns:200px 1fr;gap:24px;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:transform .2s ease;
}
.news__item:hover{transform:translateX(4px)}
.news__item:hover h3{color:var(--accent)}
.news__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news__meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;font-size:13px;color:var(--muted)}
.news__item h3{font-size:18px;line-height:1.5;transition:color .18s ease}
.news__item p{font-size:15px;color:var(--muted);line-height:1.75;margin:8px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news__more{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:14px;font-weight:600;color:var(--brand-700)}
.empty{
  padding:56px 24px;text-align:center;background:var(--card);
  border:1px dashed var(--border);border-radius:var(--r-card);color:var(--muted);font-size:15px;
}
.empty i{display:block;font-size:26px;color:var(--moss);margin-bottom:12px}

/* ===== 信任背书 ===== */
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px}
.proof__item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);
}
.proof__item strong{display:block;font-size:30px;color:var(--brand-700);line-height:1.25;font-variant-numeric:tabular-nums}
.proof__item span{display:block;margin-top:6px;font-size:15px;color:var(--muted)}
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.logo-cell{
  height:74px;display:flex;align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  color:#9A9F98;font-size:14px;font-weight:600;letter-spacing:.4px;
  filter:grayscale(1);transition:filter .25s ease,color .25s ease,border-color .25s ease;
}
.logo-cell:hover{filter:grayscale(0);color:var(--brand-700);border-color:var(--moss)}

/* ===== FAQ ===== */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--text);
  transition:color .18s ease;
}
.faq__q:hover{color:var(--accent)}
.faq__icon{
  position:relative;width:22px;height:22px;flex:0 0 22px;border-radius:50%;
  background:var(--moss-100);transition:transform .25s ease,background-color .25s ease;
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__icon::before{width:10px;height:2px}
.faq__icon::after{width:2px;height:10px}
.faq__item.is-open .faq__icon{transform:rotate(180deg);background:var(--accent)}
.faq__item.is-open .faq__icon::before,.faq__item.is-open .faq__icon::after{background:#fff}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq__item.is-open .faq__a{max-height:400px}
.faq__a-inner{padding:0 4px 24px;background:transparent;color:var(--body);font-size:16px;line-height:1.8}
.faq__item.is-open .faq__a-inner{background:var(--bg-2);border-radius:10px;padding:18px 20px;margin-bottom:22px}

/* ===== 通栏 CTA ===== */
.cta{
  position:relative;overflow:hidden;background:var(--brand-900);color:#fff;border-radius:0;
}
.cta::before{
  content:"";position:absolute;right:-40px;top:-40px;width:300px;height:300px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.22) 0 6px,transparent 6px 16px);
  pointer-events:none;
}
.cta__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding-top:72px;padding-bottom:72px;
}
.cta h2{color:#fff;font-size:28px;line-height:1.4}
.cta p{color:rgba(255,255,255,.76);margin-top:14px;font-size:16px}
.form{display:flex;flex-direction:column;gap:12px}
.form__row{display:flex;gap:12px}
.form input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.96);color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form input::placeholder{color:#9AA39D}
.form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,84,42,.30)}
.form input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(200,68,47,.22)}
.form__note{font-size:13px;color:rgba(255,255,255,.56);line-height:1.7}
.form__tip{font-size:12px;color:#FFC9B6;min-height:16px}

/* ===== 页脚 ===== */
.footer{background:#0B2219;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:auto}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer h3{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:.4px}
.footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer__brand strong{color:#fff;font-size:16px}
.footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.60)}
.footer__list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer__list a:hover{color:var(--accent)}
.footer__contact li{font-size:14px;line-height:1.9}
.footer__contact i{width:18px;color:var(--moss);margin-right:8px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.46);
}

/* ===== 响应式 ===== */
@media (max-width:1439px){
  .container{padding:0 28px}
}
@media (max-width:1199px) and (min-width:1024px){
  :root{--sidebar-w:72px}
  .sidebar{padding:20px 12px}
  .logo{padding:0 0 20px;justify-content:center}
  .logo__text{display:none}
  .side-nav__title{display:none}
  .nav__link{justify-content:center;padding:12px 0}
  .nav__link span{display:none}
  .nav__link.is-active::before{left:-12px}
  .side-cta{padding:12px 0;justify-content:center}
  .side-cta span{display:none}
  .side-foot{display:none}
  .hero h1{font-size:36px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .hero__inner{grid-template-columns:1fr;gap:36px;padding-top:56px;padding-bottom:56px}
  .hero h1{font-size:32px}
  .hero__media{order:-1}
  .tenets,.story,.news,.cta__inner{grid-template-columns:1fr;gap:32px}
  .news__aside{position:static}
  .picks{grid-template-columns:repeat(2,1fr)}
  .pick--lead{grid-column:span 2}
  .proof{grid-template-columns:repeat(2,1fr)}
  .logos{grid-template-columns:repeat(3,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .hero h1{font-size:27px}
  .section{padding:56px 0}
  .section__head h2,.news__aside h2,.cta h2{font-size:23px}
  .hero__stats{gap:18px 0}
  .hero__stats li{padding:0 18px}
  .hero__stats strong{font-size:22px}
  .picks{grid-template-columns:1fr}
  .pick--lead{grid-column:span 1}
  .pick--lead .pick__thumb img{aspect-ratio:16/9}
  .news__item{grid-template-columns:1fr;gap:14px}
  .proof{grid-template-columns:1fr}
  .logos{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr}
  .form__row{flex-direction:column}
  .form .btn{width:100%}
  .tenets__grid{grid-template-columns:1fr}
  .tenet:nth-child(2){border-top:1px solid var(--line);padding-top:22px}
}
@media (max-width:520px){
  .hero h1{font-size:24px}
  .btn{width:100%}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__stats li{padding:0 14px}
  .card,.pick__body{padding:16px}
  .pick__body{padding:18px 16px}
}

/* roulang page: article */
:root{
  --brand-900:#0F2E24;
  --brand-700:#1C5C46;
  --brand-500:#2F7F62;
  --accent:#E2542A;
  --accent-hover:#C8451F;
  --moss:#7FB69E;
  --moss-100:#E7F0EB;
  --bg:#FAF8F4;
  --bg-2:#F2EFE9;
  --card:#FFFFFF;
  --border:#E4E0D7;
  --divider:#EDE9E1;
  --title:#16211D;
  --text:#3A4742;
  --muted:#7C877F;
  --success:#2F9E6B;
  --error:#C8442F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-badge:999px;
  --shadow-1:0 1px 2px rgba(15,46,36,.06);
  --shadow-2:0 10px 28px rgba(15,46,36,.10);
  --shadow-3:0 16px 40px rgba(15,46,36,.18);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--title);line-height:1.3;margin:0;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.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{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- App shell ---------- */
.app{min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--brand-900);color:#fff;
  padding:24px 18px 28px;display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;overflow-x:hidden;z-index:60;
  transition:transform .24s ease,width .2s ease;
}
.sidebar__head{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.logo{display:flex;align-items:center;gap:10px;min-width:0;}
.logo__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;
  font-weight:700;font-size:14px;letter-spacing:.02em;flex:0 0 auto;
}
.logo__text{font-size:15px;font-weight:600;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sidebar__close{
  display:none;background:transparent;border:1px solid rgba(255,255,255,.25);
  color:#fff;width:34px;height:34px;border-radius:9px;cursor:pointer;font-size:15px;
}
.sidebar__close:hover{background:rgba(255,255,255,.1);}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav__title{
  display:block;font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.45);
  padding:0 12px;margin-bottom:6px;
}
.nav__link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px 11px 14px;border-radius:8px;
  color:rgba(255,255,255,.78);font-size:15px;line-height:1.4;
  transition:background .18s ease,color .18s ease;
}
.nav__link i{width:18px;text-align:center;font-size:15px;flex:0 0 auto;}
.nav__link span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.nav__link:hover{background:rgba(255,255,255,.09);color:#fff;}
.nav__link.is-active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.nav__link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--accent);
}
.sidebar__cta{margin-top:auto;}
.sidebar__meta{font-size:12px;line-height:1.7;color:rgba(255,255,255,.5);border-top:1px solid rgba(255,255,255,.12);padding-top:14px;}
.overlay{
  position:fixed;inset:0;background:rgba(15,46,36,.55);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:55;
}
.overlay.is-open{opacity:1;visibility:visible;}
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.main__body{flex:1 1 auto;}
.topbar{
  display:none;align-items:center;gap:14px;
  height:56px;padding:0 16px;background:var(--brand-900);color:#fff;
  position:sticky;top:0;z-index:40;
}
.topbar__btn{
  background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;
  width:38px;height:38px;border-radius:9px;font-size:15px;cursor:pointer;
}
.topbar__btn:hover{background:rgba(255,255,255,.12);}
.topbar__brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:600;color:#fff;min-width:0;}
.topbar__brand span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__cta{
  margin-left:auto;background:var(--accent);color:#fff;font-size:13px;
  padding:8px 14px;border-radius:var(--radius-btn);white-space:nowrap;
}
.topbar__cta:hover{background:var(--accent-hover);}

/* ---------- Buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1.2;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(226,84,42,.22);}
.btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 10px 22px rgba(226,84,42,.28);}
.btn--primary:active{transform:translateY(1px);}
.btn--outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn--outline:hover{background:var(--moss-100);}
.btn--sm{padding:8px 14px;font-size:13px;}
.btn--block{display:flex;width:100%;}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-badge);background:var(--moss-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.01em;
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--radius-badge);background:var(--bg-2);color:var(--muted);font-size:13px;
}
.text-link{
  color:var(--brand-700);font-weight:600;
  text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;
}
.text-link:hover{color:var(--accent);}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:34px 0;color:#fff;
}
.article-hero::before{content:"";position:absolute;inset:0;background:rgba(15,46,36,.84);}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.72);}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb i{font-size:11px;color:rgba(255,255,255,.45);}
.breadcrumb__cat{color:rgba(255,255,255,.86);}
.breadcrumb__current{
  color:#fff;max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- Article layout ---------- */
.article-section{padding:56px 0 0;}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;}
.article{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:44px 46px;box-shadow:var(--shadow-1);
}
.article__head h1{font-size:34px;margin:18px 0 0;letter-spacing:-.01em;}
.article__meta{
  display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;padding-top:20px;
  border-top:1px solid var(--divider);color:var(--muted);font-size:14px;
}
.article__meta span{display:inline-flex;align-items:center;gap:7px;}
.article__meta i{color:var(--moss);}
.article__meta em{font-style:normal;font-weight:600;color:var(--brand-700);}
.article__content{margin-top:34px;font-size:17px;line-height:1.85;color:var(--text);}
.article__content p{margin:0 0 1em;}
.article__content h2{
  font-size:26px;margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--accent);scroll-margin-top:24px;
}
.article__content h3{font-size:19px;margin:28px 0 12px;}
.article__content h4{font-size:17px;margin:22px 0 10px;}
.article__content a{color:var(--brand-700);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
.article__content a:hover{color:var(--accent);}
.article__content ul,.article__content ol{margin:0 0 1em;padding-left:24px;}
.article__content ul{list-style:square;}
.article__content ol{list-style:decimal;}
.article__content li{margin-bottom:.5em;}
.article__content ul li::marker{color:var(--accent);}
.article__content blockquote{
  margin:26px 0;padding:18px 24px;background:var(--bg-2);
  border-left:4px solid var(--brand-500);border-radius:0 10px 10px 0;color:#4A5852;
}
.article__content blockquote p:last-child{margin-bottom:0;}
.article__content img{border-radius:var(--radius-img);margin:26px auto;height:auto;}
.article__content figure{margin:26px 0;}
.article__content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article__content table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--border);border-radius:10px;overflow:hidden;
}
.article__content th,.article__content td{border:1px solid var(--border);padding:10px 14px;text-align:left;}
.article__content thead th{background:var(--moss-100);color:var(--brand-900);font-weight:600;}
.article__content tbody tr:nth-child(even){background:#FBF9F5;}
.article__content code{background:var(--bg-2);padding:2px 6px;border-radius:6px;font-size:14px;}
.article__content hr{border:0;border-top:1px solid var(--divider);margin:34px 0;}

/* ---------- Side widgets ---------- */
.article-side{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--accent);font-size:13px;}
.toc li{margin-bottom:4px;}
.toc a{
  display:block;padding:6px 0 6px 12px;border-left:2px solid var(--divider);
  font-size:14px;line-height:1.5;color:var(--text);transition:color .16s ease,border-color .16s ease;
}
.toc a:hover{color:var(--accent);border-color:var(--accent);}
.toc__empty{font-size:13px;color:var(--muted);line-height:1.7;}
.side-links li + li{border-top:1px solid var(--divider);}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--text);transition:color .16s ease,transform .16s ease;
}
.side-links a:hover{color:var(--accent);transform:translateX(3px);}
.side-links i{font-size:11px;color:var(--moss);}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;padding:56px 24px;background:var(--bg-2);
  border:1px dashed var(--border);border-radius:var(--radius-card);
}
.empty-state i{font-size:30px;color:var(--moss);}
.empty-state p{margin:14px 0 20px;font-size:16px;color:var(--muted);}

/* ---------- Related ---------- */
.related{padding:80px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:26px;padding-left:14px;border-left:4px solid var(--accent);}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--muted);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--moss);}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.card__body h3{font-size:18px;margin:12px 0 8px;}
.card:hover .card__body h3{color:var(--accent);}
.card__body p{font-size:14.5px;line-height:1.7;color:var(--muted);margin:0 0 16px;}
.card__foot{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:space-between;}

/* ---------- CTA band ---------- */
.cta-wrap{padding:80px 0 0;}
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;
  background:var(--brand-900);color:#fff;padding:48px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.22) 0 8px,transparent 8px 18px);
  pointer-events:none;
}
.cta-band__text{position:relative;z-index:1;}
.cta-band__text h2{color:#fff;font-size:28px;}
.cta-band__text p{color:rgba(255,255,255,.74);margin:12px 0 0;font-size:15.5px;}
.cta-form{position:relative;z-index:1;display:grid;grid-template-columns:1fr auto;gap:12px;}
.cta-form input{
  height:46px;padding:0 16px;border-radius:var(--radius-btn);
  border:1.5px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;font-size:15px;font-family:inherit;transition:border-color .18s ease,background .18s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.14);box-shadow:0 0 0 2px rgba(226,84,42,.35);}
.cta-form input.is-error{border-color:#F08A70;}
.form-msg{grid-column:1 / -1;margin:0;font-size:13px;min-height:18px;color:rgba(255,255,255,.7);}
.form-msg.is-error{color:#F5A38F;}
.form-msg.is-ok{color:#8FD9B8;}
.form-note{grid-column:1 / -1;margin:0;font-size:12.5px;color:rgba(255,255,255,.5);}

/* ---------- Footer ---------- */
.footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:96px;}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px;}
.footer__brand strong{font-size:15.5px;}
.footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;}
.footer h3{color:#fff;font-size:15px;margin:0 0 16px;}
.footer__list li{margin-bottom:10px;}
.footer__list a{font-size:14px;color:rgba(255,255,255,.72);transition:color .16s ease;}
.footer__list a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer__contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.72);}
.footer__contact i{color:var(--moss);margin-top:5px;font-size:13px;}
.footer__bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .article-wrap{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;gap:26px;}
  .footer__grid{grid-template-columns:1fr 1fr;}
}
@media (min-width:1024px) and (max-width:1199px){
  :root{--sidebar-w:72px;}
  .sidebar{padding:20px 12px;align-items:center;}
  .logo__text{display:none;}
  .sidebar__cta{padding:10px;width:44px;height:44px;font-size:0;}
  .sidebar__cta::before{content:"\f019";font-family:"Font Awesome 6 Free";font-weight:900;font-size:15px;}
  .side-nav{align-items:center;width:100%;}
  .side-nav__title,.sidebar__meta{display:none;}
  .nav__link{justify-content:center;width:44px;height:44px;padding:0;}
  .nav__link span{
    position:absolute;left:56px;top:50%;transform:translateY(-50%);
    background:var(--brand-700);color:#fff;padding:6px 12px;border-radius:6px;
    font-size:13px;white-space:nowrap;opacity:0;visibility:hidden;transition:opacity .18s ease,left .18s ease;
    box-shadow:var(--shadow-3);z-index:10;
  }
  .nav__link:hover span{opacity:1;visibility:visible;left:60px;}
}
@media (max-width:1023px){
  .main{margin-left:0;}
  .topbar{display:flex;}
  .sidebar{
    width:280px;transform:translateX(-100%);box-shadow:var(--shadow-3);
    padding:24px 18px 28px;align-items:stretch;
  }
  .sidebar.is-open{transform:translateX(0);}
  .sidebar__close{display:inline-flex;align-items:center;justify-content:center;}
  .logo__text{display:block;}
  .sidebar__cta{width:auto;height:auto;font-size:15px;padding:12px 22px;}
  .sidebar__cta::before{display:none;}
  .side-nav{align-items:stretch;}
  .side-nav__title,.sidebar__meta{display:block;}
  .nav__link{justify-content:flex-start;width:auto;height:auto;padding:11px 12px 11px 14px;}
  .nav__link span{position:static;opacity:1;visibility:visible;background:none;box-shadow:none;padding:0;color:inherit;font-size:inherit;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .article{padding:28px 22px;border-radius:14px;}
  .article__head h1{font-size:26px;}
  .article__content{font-size:16px;}
  .article__content h2{font-size:22px;margin-top:34px;}
  .article__content h3{font-size:18px;}
  .grid-3{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;}
  .cta-band__text h2{font-size:22px;}
  .cta-form{grid-template-columns:1fr;}
  .cta-form .btn{width:100%;}
  .section-head h2{font-size:22px;}
  .related{padding-top:56px;}
  .cta-wrap{padding-top:56px;}
  .footer{margin-top:64px;padding-top:48px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .breadcrumb__current{white-space:normal;max-width:100%;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .topbar__cta{width:auto;padding:8px 12px;font-size:12.5px;}
  .article{padding:24px 18px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F2E24;
  --brand-700:#1C5C46;
  --brand-500:#2F7F62;
  --accent:#E2542A;
  --accent-hover:#C8451F;
  --moss:#7FB69E;
  --moss-100:#E7F0EB;
  --bg:#FAF8F4;
  --bg-2:#F2EFE9;
  --card:#FFFFFF;
  --border:#E4E0D7;
  --divider:#EDE9E1;
  --text:#16211D;
  --text-body:#3A4742;
  --text-muted:#7C877F;
  --ok:#2F9E6B;
  --warn:#D98A1F;
  --err:#C8442F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,46,36,.06);
  --sh-2:0 10px 28px rgba(15,46,36,.10);
  --sh-3:0 16px 40px rgba(15,46,36,.18);
  --sidebar-w:248px;
}
*,
*::before,
*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text-body);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{color:var(--text);line-height:1.3;margin:0;font-weight:700;}
h1{font-size:42px;letter-spacing:-.01em;}
h2{font-size:28px;}
h3{font-size:20px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
::selection{background:var(--accent);color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- App Shell ---------- */
.app-main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--brand-900);
  color:#fff;
  display:flex;
  flex-direction:column;
  gap:22px;
  padding:26px 18px 22px;
  z-index:80;
  overflow-y:auto;
  overflow-x:hidden;
  transition:transform .28s ease,width .2s ease;
}
.sidebar::after{
  content:"";
  position:absolute;
  right:0;bottom:0;
  width:130px;height:130px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.22) 0 2px,transparent 2px 9px);
  pointer-events:none;
}
.sidebar__head{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.logo{display:flex;align-items:center;gap:10px;min-width:0;}
.logo__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;flex:none;
  border-radius:9px;
  background:var(--accent);
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.02em;
}
.logo strong{font-size:15px;line-height:1.35;color:#fff;font-weight:600;}
.sidebar__close{
  display:none;
  width:36px;height:36px;flex:none;
  align-items:center;justify-content:center;
  border-radius:8px;color:#fff;font-size:16px;
}
.sidebar__close:hover{background:rgba(255,255,255,.12);}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav__title{
  display:block;
  font-size:12px;letter-spacing:.14em;
  color:rgba(255,255,255,.45);
  padding:0 12px 8px;
}
.nav__link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:8px;
  font-size:15px;
  color:rgba(255,255,255,.76);
  transition:background .2s ease,color .2s ease;
}
.nav__link i{width:18px;text-align:center;font-size:15px;flex:none;}
.nav__link:hover{background:rgba(255,255,255,.08);color:#fff;}
.nav__link.is-active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.nav__link.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;
  width:3px;border-radius:2px;background:var(--accent);
}
.sidebar__cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;
  padding:12px 16px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:background .2s ease,transform .18s ease,box-shadow .2s ease;
}
.sidebar__cta:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 8px 20px rgba(226,84,42,.28);}
.sidebar__meta{
  margin-top:auto;
  font-size:12px;line-height:1.7;
  color:rgba(255,255,255,.42);
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:16px;
}
.topbar{display:none;}
.nav-overlay{
  position:fixed;inset:0;
  background:rgba(15,46,36,.55);
  opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:75;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- 页头横幅 ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
}
.cat-hero__bg{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.34;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,46,36,.95) 0%,rgba(15,46,36,.76) 52%,rgba(15,46,36,.42) 100%);
}
.cat-hero__deco{
  position:absolute;right:-30px;bottom:-30px;
  width:200px;height:200px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.30) 0 2px,transparent 2px 11px);
  z-index:1;
  pointer-events:none;
}
.cat-hero__inner{
  position:relative;z-index:2;
  color:#fff;
  padding:72px 0 66px;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span[aria-current]{color:rgba(255,255,255,.6);}
.cat-hero__badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(226,84,42,.18);
  border:1px solid rgba(226,84,42,.45);
  color:#F6C6B3;
  font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.cat-hero h1{color:#fff;max-width:800px;}
.cat-hero__sub{
  max-width:680px;
  margin-top:18px;
  font-size:17px;
  color:rgba(255,255,255,.82);
  line-height:1.8;
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section--tint{background:var(--bg-2);}
.section--tight{padding-top:0;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;
  width:4px;border-radius:2px;background:var(--accent);
}
.eyebrow{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--accent);
  margin-bottom:12px;
}
.section-head p{margin-top:14px;color:var(--text-muted);font-size:16px;line-height:1.8;}

/* ---------- 双栏 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.split__main p{font-size:16.5px;line-height:1.85;color:var(--text-body);}
.panel{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
}
.panel h3{font-size:18px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--divider);}
.panel__note{
  margin-top:16px;padding-top:14px;
  border-top:1px solid var(--divider);
  font-size:14px;color:var(--text-muted);line-height:1.75;
}
.check-list{display:flex;flex-direction:column;gap:0;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;
  font-size:15px;line-height:1.7;
  border-bottom:1px dashed var(--divider);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list li:first-child{padding-top:0;}
.check-list li i{color:var(--brand-500);font-size:12px;margin-top:7px;flex:none;}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;gap:24px;}
.card-grid--two{grid-template-columns:repeat(2,minmax(0,1fr));}
.card-grid--three{grid-template-columns:repeat(3,minmax(0,1fr));}
.card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--moss);}
.card__media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--moss-100);
}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__body h3{font-size:19px;transition:color .2s ease;}
.card:hover .card__body h3{color:var(--accent);}
.card__body p{font-size:15px;color:var(--text-muted);line-height:1.75;margin:0;}
.card__link{
  margin-top:auto;padding-top:12px;
  display:inline-flex;align-items:center;gap:7px;
  color:var(--accent);font-size:14px;font-weight:600;
}
.card__link i{transition:transform .2s ease;}
.card:hover .card__link i{transform:translateX(3px);}
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--moss-100);
  color:var(--brand-700);
  font-size:13px;font-weight:600;
}
.card__tag{position:absolute;left:14px;top:14px;z-index:2;background:rgba(255,255,255,.94);}

/* ---------- 数据条 ---------- */
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:8px;
}
.stat{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
}
.stat__num{
  font-size:32px;font-weight:700;color:var(--brand-700);
  line-height:1.2;letter-spacing:-.01em;
}
.stat__num span{font-size:16px;color:var(--text-muted);font-weight:500;margin-left:4px;}
.stat__label{font-size:14px;color:var(--text-muted);margin-top:8px;line-height:1.7;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:880px;}
.faq__item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .2s ease;
}
.faq__item.is-open{border-color:var(--moss);}
.faq__q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:17px;font-weight:700;color:var(--text);line-height:1.55;
  transition:background .2s ease;
}
.faq__q:hover{background:var(--moss-100);}
.faq__q i{flex:none;color:var(--accent);font-size:14px;transition:transform .25s ease;}
.faq__item.is-open .faq__q i{transform:rotate(180deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#FBF9F5;}
.faq__a p{padding:18px 24px 22px;margin:0;font-size:15px;line-height:1.8;color:var(--text-body);}

/* ---------- 交叉链接 ---------- */
.cross{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.cross__item{
  display:flex;flex-direction:column;gap:8px;
  padding:24px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cross__item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--moss);}
.cross__item i{color:var(--brand-500);font-size:18px;}
.cross__item strong{font-size:17px;color:var(--text);}
.cross__item span{font-size:14px;color:var(--text-muted);line-height:1.7;}
.cross__item em{
  font-style:normal;margin-top:4px;
  font-size:14px;font-weight:600;color:var(--accent);
  display:inline-flex;align-items:center;gap:6px;
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  color:#fff;
  border-radius:var(--r-card);
  padding:48px;
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:36px;
  align-items:center;
}
.cta-band::after{
  content:"";
  position:absolute;right:-50px;top:-50px;
  width:230px;height:230px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.30) 0 3px,transparent 3px 12px);
  pointer-events:none;
}
.cta-band h2{color:#fff;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.78);margin-top:14px;font-size:16px;position:relative;z-index:2;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .16s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn i{font-size:14px;}
.btn--primary{background:var(--accent);color:#fff;}
.btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 8px 20px rgba(226,84,42,.28);}
.btn--primary:active{transform:translateY(0);box-shadow:none;}
.btn--ghost{border-color:var(--brand-500);color:var(--brand-700);background:transparent;}
.btn--ghost:hover{background:var(--moss-100);}
.btn--light{background:#fff;color:var(--brand-900);}
.btn--light:hover{background:var(--moss-100);transform:translateY(-1px);}
.btn--outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent;}
.btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1);}
.btn[disabled],.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:auto;
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.25fr;
  gap:40px;
  padding-bottom:44px;
}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px;}
.footer__brand strong{font-size:16px;}
.footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0;}
.footer h3{
  font-size:15px;color:#fff;margin-bottom:16px;
  position:relative;padding-left:12px;
}
.footer h3::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;
  width:3px;border-radius:2px;background:var(--accent);
}
.footer__list{display:flex;flex-direction:column;gap:11px;}
.footer__list a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease,padding-left .2s ease;}
.footer__list a:hover{color:var(--accent);padding-left:3px;}
.footer__contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.68);}
.footer__contact i{color:var(--moss);margin-right:9px;font-size:13px;}
.footer__bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ---------- 侧栏收窄（1024–1199） ---------- */
@media (max-width:1199px) and (min-width:1024px){
  :root{--sidebar-w:72px;}
  .sidebar{padding:22px 10px;align-items:center;gap:18px;}
  .logo strong,
  .side-nav__title,
  .nav__link span,
  .sidebar__cta span,
  .sidebar__meta{display:none;}
  .logo{justify-content:center;}
  .side-nav{width:100%;align-items:center;}
  .nav__link{justify-content:center;width:44px;height:44px;padding:0;}
  .nav__link.is-active::before{left:-10px;}
  .sidebar__cta{width:44px;height:44px;padding:0;border-radius:10px;}
  .split{gap:32px;}
}
@media (max-width:1199px){
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid--three{grid-template-columns:repeat(2,minmax(0,1fr));}
}

/* ---------- 平板与手机 ---------- */
@media (max-width:1023px){
  .app-main{margin-left:0;}
  .topbar{
    display:flex;align-items:center;gap:12px;
    height:56px;padding:0 14px;
    background:var(--brand-900);color:#fff;
    position:sticky;top:0;z-index:70;
    box-shadow:0 6px 18px rgba(15,46,36,.18);
  }
  .topbar__menu{
    width:40px;height:40px;flex:none;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:9px;color:#fff;font-size:18px;
    transition:background .2s ease;
  }
  .topbar__menu:hover{background:rgba(255,255,255,.12);}
  .topbar__logo{
    display:flex;align-items:center;gap:8px;
    margin:0 auto;min-width:0;
    font-size:14px;font-weight:600;color:#fff;
  }
  .topbar__logo strong{
    font-size:14px;font-weight:600;color:#fff;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px;
  }
  .topbar__cta{
    flex:none;height:36px;padding:0 14px;
    display:inline-flex;align-items:center;
    border-radius:8px;background:var(--accent);color:#fff;
    font-size:13px;font-weight:600;
  }
  .sidebar{
    width:280px;
    padding:24px 20px;
    transform:translateX(-100%);
    box-shadow:var(--sh-3);
  }
  .sidebar.is-open{transform:translateX(0);}
  .sidebar__close{display:inline-flex;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section{padding:64px 0;}
  .container{padding:0 22px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .card-grid--two{grid-template-columns:1fr;}
  .cross{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:34px 26px;gap:22px;}
  .cta-band__actions{justify-content:flex-start;}
  .cat-hero__inner{padding:52px 0 46px;}
  .cat-hero__sub{font-size:16px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .stat-row{grid-template-columns:1fr;}
  .card-grid--three{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .footer{padding-top:52px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  h2{font-size:22px;}
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .card__body{padding:18px 16px 22px;}
  .panel{padding:20px 18px;}
  .faq__q{padding:16px 18px;font-size:16px;}
  .faq__a p{padding:16px 18px 20px;}
  .cta-band{padding:28px 20px;}
  .cta-band__actions{flex-direction:column;align-items:stretch;}
  .cta-band__actions .btn{width:100%;}
  .cat-hero__inner{padding:44px 0 40px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0F2E24;
  --brand-700:#1C5C46;
  --brand-500:#2F7F62;
  --accent:#E2542A;
  --accent-hover:#C8451F;
  --moss:#7FB69E;
  --moss-100:#E7F0EB;
  --bg:#FAF8F4;
  --bg-2:#F2EFE9;
  --card:#FFFFFF;
  --border:#E4E0D7;
  --line:#EDE9E1;
  --text:#16211D;
  --body:#3A4742;
  --muted:#7C877F;
  --ok:#2F9E6B;
  --warn:#D98A1F;
  --err:#C8442F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(15,46,36,.06);
  --shadow-hover:0 10px 28px rgba(15,46,36,.10);
  --shadow-drawer:0 16px 40px rgba(15,46,36,.18);
  --sidebar-w:248px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none}
a:hover{color:var(--accent)}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.3;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--moss-100);color:var(--brand-900)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ============ 左侧 App Shell ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--brand-900);
  color:#fff;
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:22px 16px 18px;
  z-index:80;
  overflow-y:auto;
  transition:transform .24s ease,width .24s ease;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:6px}
.brand{
  display:flex;align-items:center;gap:10px;
  padding:8px 10px;border-radius:10px;
  color:#fff;text-decoration:none;
  transition:background .18s ease;
}
.brand:hover{background:rgba(255,255,255,.08);color:#fff}
.logo__mark{
  flex:0 0 auto;
  width:36px;height:36px;border-radius:10px;
  background:var(--accent);color:#fff;
  display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:.4px;
}
.brand__text{font-size:15px;font-weight:600;line-height:1.3;letter-spacing:.2px}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:18px}
.side-nav__title{
  font-size:12px;letter-spacing:.22em;color:rgba(255,255,255,.42);
  padding:0 12px 8px;text-transform:uppercase;
}
.nav__link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:8px;
  color:rgba(255,255,255,.78);
  font-size:15px;line-height:1.4;
  text-decoration:none;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav__link i{width:20px;text-align:center;font-size:15px;flex:0 0 auto}
.nav__link:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(2px)}
.nav__link.is-active{background:rgba(255,255,255,.10);color:#fff;font-weight:700}
.nav__link.is-active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;
  background:var(--accent);border-radius:0 3px 3px 0;
}
.sidebar__cta{margin-top:20px}
.sidebar__foot{
  margin-top:auto;padding:18px 12px 4px;
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.5);
  border-top:1px solid rgba(255,255,255,.1);
}
.sidebar__foot strong{color:rgba(255,255,255,.78);font-weight:600}

.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  background:var(--brand-900);
  align-items:center;justify-content:space-between;
  padding:0 14px;z-index:90;
  box-shadow:0 2px 12px rgba(15,46,36,.25);
}
.topbar .brand{padding:6px 6px}
.topbar .logo__mark{width:32px;height:32px;font-size:14px}
.topbar .brand__text{font-size:14px;color:#fff}
.menu-btn{
  width:42px;height:42px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#fff;font-size:17px;cursor:pointer;
  display:grid;place-items:center;
  transition:background .18s ease,border-color .18s ease;
}
.menu-btn:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.32)}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(15,46,36,.55);
  opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:70;
}
.drawer-mask.is-visible{opacity:1;visibility:visible}

.shell-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1;
  cursor:pointer;text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(226,84,42,.24)}
.btn--accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(226,84,42,.28)}
.btn--accent:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn--ghost:hover{background:var(--moss-100);color:var(--brand-900);border-color:var(--brand-700)}
.btn--light{background:#fff;color:var(--brand-900)}
.btn--light:hover{background:var(--moss-100);color:var(--brand-900)}
.btn--block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--moss-100);color:var(--brand-700);
  font-size:13px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge--float{
  position:absolute;left:12px;top:12px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--brand-900);
  box-shadow:0 2px 10px rgba(15,46,36,.18);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--brand-500);text-transform:uppercase;
}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{margin-bottom:14px}
.section-head h2{font-size:28px;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;line-height:1.8;margin:0}
.section{padding:80px 0}
.section--alt{background:var(--bg-2)}
.rule{height:1px;background:var(--line);border:0;margin:0}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand-700);
  transition:color .18s ease,gap .18s ease;
}
.link-arrow:hover{color:var(--accent);gap:12px}

/* ============ 面包屑 ============ */
.crumb{padding:24px 0 0;font-size:14px;color:var(--muted)}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--border)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb [aria-current]{color:var(--text);font-weight:600}

/* ============ Hero ============ */
.hero{
  position:relative;
  margin-top:20px;
  border-radius:18px;
  overflow:hidden;
  background-image:linear-gradient(96deg,rgba(15,46,36,.92) 12%,rgba(15,46,36,.62) 62%,rgba(15,46,36,.34) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center right;
  color:#fff;
}
.hero::after{
  content:"";
  position:absolute;right:0;bottom:0;width:240px;height:130px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.85) 0 5px,rgba(226,84,42,0) 5px 13px);
  clip-path:polygon(38% 0,100% 0,100% 100%,0 100%);
  opacity:.55;pointer-events:none;
}
.hero__inner{position:relative;z-index:2;padding:60px 0 56px;max-width:760px}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 13px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;letter-spacing:.08em;
  margin-bottom:20px;
}
.hero h1{color:#fff;font-size:42px;letter-spacing:.5px;margin-bottom:16px}
.hero__sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.85;max-width:640px;margin-bottom:30px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.hero__points{
  display:flex;flex-wrap:wrap;gap:0;
  margin-top:38px;border-top:1px solid rgba(255,255,255,.18);padding-top:22px;
}
.hero__points li{
  flex:1 1 160px;min-width:150px;
  padding:0 22px;border-left:1px solid rgba(255,255,255,.18);
}
.hero__points li:first-child{padding-left:0;border-left:0}
.hero__points strong{display:block;font-size:22px;color:#fff;line-height:1.4}
.hero__points span{font-size:13px;color:rgba(255,255,255,.66)}

/* ============ 指标条 ============ */
.metrics{padding:0 0 8px}
.metrics__grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
  margin-top:-34px;position:relative;z-index:5;
}
.metric{
  padding:26px 24px;border-left:1px solid var(--line);
  transition:background .18s ease;
}
.metric:first-child{border-left:0}
.metric:hover{background:var(--moss-100)}
.metric strong{display:block;font-size:26px;color:var(--brand-700);line-height:1.3;margin-bottom:6px}
.metric span{font-size:14px;color:var(--muted);line-height:1.7;display:block}

/* ============ 卡片墙 ============ */
.wall__grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
}
.wall-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--moss)}
.wall-card:nth-child(3n+2){margin-top:34px}
.wall-card:nth-child(3n+3){margin-top:12px}
.wall-card__media{position:relative;overflow:hidden;background:var(--bg-2)}
.wall-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease}
.wall-card:hover .wall-card__media img{transform:scale(1.04)}
.media--h1{height:236px}
.media--h2{height:180px}
.media--h3{height:284px}
.wall-card__body{padding:20px 20px 22px}
.wall-card__body h3{font-size:19px;margin-bottom:10px;transition:color .2s ease}
.wall-card:hover .wall-card__body h3{color:var(--accent)}
.wall-card__body p{font-size:15px;color:var(--body);line-height:1.75;margin-bottom:14px}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow__item{position:relative;padding-top:34px}
.flow__item::before{
  content:"";position:absolute;top:15px;left:0;right:-24px;height:2px;
  background:linear-gradient(90deg,var(--moss) 0%,var(--border) 100%);
}
.flow__item:last-child::before{display:none}
.flow__dot{
  position:absolute;top:0;left:0;
  width:32px;height:32px;border-radius:50%;
  background:var(--brand-700);color:#fff;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;
  box-shadow:0 0 0 5px var(--bg);
}
.flow__item h3{font-size:18px;margin:0 0 10px}
.flow__item p{font-size:15px;color:var(--muted);line-height:1.75;margin:0}

/* ============ 双栏介绍 + 清单 ============ */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.split h2{font-size:28px;margin-bottom:18px}
.split p{font-size:16px;line-height:1.85}
.checklist{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
}
.checklist h3{font-size:18px;margin-bottom:18px}
.checklist li{
  display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line);
  font-size:15px;line-height:1.7;
}
.checklist li:first-of-type{border-top:0;padding-top:0}
.checklist i{color:var(--ok);margin-top:5px;flex:0 0 auto;font-size:14px}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto}
.faq__item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item.is-open{border-color:var(--moss);box-shadow:var(--shadow-hover)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--text);line-height:1.6;
  transition:color .18s ease;
}
.faq__q:hover{color:var(--accent)}
.faq__q .faq__icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  background:var(--moss-100);color:var(--brand-700);
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.faq__item.is-open .faq__icon{transform:rotate(180deg);background:var(--accent);color:#fff}
.faq__panel{display:none;padding:0 24px 22px;font-size:16px;line-height:1.8;color:var(--body);background:#F7F4EE}
.faq__item.is-open .faq__panel{display:block;padding-top:8px}

/* ============ 交叉链接 ============ */
.cross{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross__card{
  display:block;padding:26px 24px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cross__card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--moss)}
.cross__card i{font-size:20px;color:var(--accent);margin-bottom:14px;display:block}
.cross__card strong{display:block;font-size:18px;color:var(--text);margin-bottom:8px}
.cross__card span{font-size:14px;color:var(--muted);line-height:1.7}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
  border-radius:18px;
}
.cta::before{
  content:"";position:absolute;right:-40px;top:-30px;width:320px;height:220px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.5) 0 6px,rgba(226,84,42,0) 6px 16px);
  clip-path:polygon(45% 0,100% 0,100% 100%,0 100%);
  pointer-events:none;
}
.cta__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  padding:52px 48px;
}
.cta h2{color:#fff;font-size:28px;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.74);font-size:16px;line-height:1.8;margin:0}
.form__row{display:flex;gap:12px;flex-wrap:wrap}
.form__field{flex:1 1 220px;min-width:0}
.form__field input{
  width:100%;height:46px;padding:0 16px;
  border-radius:var(--radius-btn);
  border:1.5px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);
  color:#fff;font-size:16px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.form__field input::placeholder{color:rgba(255,255,255,.5)}
.form__field input:focus{
  outline:none;border-color:var(--accent);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(226,84,42,.28);
}
.form__field.is-error input{border-color:#F0857A;background:rgba(200,68,47,.16)}
.form__hint{margin-top:12px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}
.form__msg{margin-top:10px;font-size:13px;color:#F3A79C;min-height:20px}

/* ============ 页脚 ============ */
.footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:88px}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:60px 0 40px;
}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer__brand strong{font-size:16px;font-weight:600}
.footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:0}
.footer h3{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600}
.footer__list li{margin-bottom:11px}
.footer__list a{font-size:14px;color:rgba(255,255,255,.68);transition:color .18s ease,padding-left .18s ease}
.footer__list a:hover{color:var(--accent);padding-left:3px}
.footer__contact li{
  display:flex;gap:10px;font-size:14px;line-height:1.7;margin-bottom:12px;
  color:rgba(255,255,255,.68);
}
.footer__contact i{color:var(--moss);margin-top:4px;flex:0 0 auto;font-size:13px}
.footer__bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1140px}
}
@media (max-width:1199px) and (min-width:1024px){
  .sidebar{width:72px;padding:18px 12px;align-items:center}
  .shell-main{margin-left:72px}
  .brand{padding:6px;justify-content:center}
  .brand__text,.side-nav__title,.sidebar__cta span,.sidebar__foot{display:none}
  .side-nav{width:100%;align-items:center}
  .nav__link{justify-content:center;padding:12px 0;width:44px;height:44px}
  .nav__link span{display:none}
  .nav__link.is-active::before{left:-12px}
  .sidebar__cta{width:44px;height:44px;padding:0;border-radius:10px}
  .nav__link[data-tip]{position:relative}
  .nav__link[data-tip]:hover::after{
    content:attr(data-tip);
    position:absolute;left:56px;top:50%;transform:translateY(-50%);
    background:#16211D;color:#fff;font-size:13px;font-weight:500;
    padding:7px 12px;border-radius:8px;white-space:nowrap;
    box-shadow:var(--shadow-hover);z-index:99;
  }
}
@media (max-width:1023px){
  body{font-size:16px}
  .sidebar{
    width:280px;transform:translateX(-100%);
    box-shadow:var(--shadow-drawer);
  }
  .sidebar.is-open{transform:translateX(0)}
  .topbar{display:flex}
  .shell-main{margin-left:0;padding-top:56px}
  .container{padding:0 20px}
  .hero{border-radius:14px;margin-top:16px}
  .hero__inner{padding:44px 0 40px}
  .hero h1{font-size:32px}
  .hero__sub{font-size:16px}
  .metrics__grid{grid-template-columns:repeat(2,1fr);margin-top:-24px}
  .metric{border-left:1px solid var(--line);border-top:1px solid var(--line)}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0}
  .metric:nth-child(odd){border-left:0}
  .wall__grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .wall-card:nth-child(3n+2),.wall-card:nth-child(3n+3){margin-top:0}
  .wall-card:nth-child(2n){margin-top:24px}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .flow__item:nth-child(2)::before{display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .cross{grid-template-columns:1fr;gap:16px}
  .faq__panel,.faq__q{padding-left:20px;padding-right:20px}
  .cta__inner{grid-template-columns:1fr;gap:30px;padding:38px 28px}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:34px;padding:48px 0 30px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:28px}
}
@media (max-width:767px){
  .hero h1{font-size:28px}
  .hero__points li{flex:1 1 100%;padding:0;border-left:0;margin-bottom:16px}
  .hero__points li:last-child{margin-bottom:0}
  .wall__grid{grid-template-columns:1fr;gap:18px}
  .wall-card:nth-child(2n){margin-top:0}
  .media--h1,.media--h2,.media--h3{height:200px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;gap:8px}
  .flow{grid-template-columns:1fr}
  .flow__item::before{display:none}
  .metric strong{font-size:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero{border-radius:12px}
  .hero__actions .btn{width:100%}
  .form__row .btn{width:100%}
  .wall-card__body{padding:16px}
  .checklist{padding:20px}
  .cta__inner{padding:30px 20px}
  .metric{padding:20px 18px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0F2E24;
  --brand-700:#1C5C46;
  --brand-500:#2F7F62;
  --accent:#E2542A;
  --accent-hover:#C8451F;
  --moss:#7FB69E;
  --moss-100:#E7F0EB;
  --bg:#FAF8F4;
  --bg-2:#F2EFE9;
  --card:#FFFFFF;
  --border:#E4E0D7;
  --divider:#EDE9E1;
  --text:#16211D;
  --body:#3A4742;
  --muted:#7C877F;
  --ok:#2F9E6B;
  --warn:#D98A1F;
  --err:#C8442F;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,46,36,.06);
  --shadow-2:0 10px 28px rgba(15,46,36,.10);
  --shadow-3:0 16px 40px rgba(15,46,36,.18);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--text);line-height:1.3;margin:0;font-weight:700}
h1{font-family:var(--font-serif);font-size:42px;letter-spacing:.2px}
h2{font-family:var(--font-serif);font-size:28px;margin-top:40px;margin-bottom:16px}
h3{font-size:20px;margin-bottom:10px}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.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{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 左侧 App Shell ---------- */
.app{min-height:100vh}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:248px;
  background:var(--brand-900);
  color:#fff;
  display:flex;
  flex-direction:column;
  padding:24px 16px 20px;
  z-index:60;
  transition:transform .22s ease,width .18s ease;
}
.sidebar__brand{margin-bottom:20px}
.logo{display:flex;align-items:center;gap:10px;color:#fff}
.logo:hover{color:#fff}
.logo__mark{
  width:38px;height:38px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent);
  border-radius:10px;
  font-weight:700;font-size:17px;letter-spacing:.5px;color:#fff;
  font-family:var(--font-sans);
}
.logo__text{display:flex;flex-direction:column;line-height:1.25}
.logo__text strong{font-size:16px;font-weight:700;letter-spacing:.3px}
.logo__text small{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:1.6px}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav__title{
  font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.42);
  padding:0 12px 8px;display:block;text-transform:uppercase;
}
.nav__link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:8px;
  font-size:15px;
  color:rgba(255,255,255,.82);
  transition:background .18s ease,color .18s ease;
}
.nav__link i{width:18px;text-align:center;font-size:15px;flex:0 0 18px}
.nav__link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav__link.is-active{background:rgba(255,255,255,.11);color:#fff;font-weight:600}
.nav__link.is-active::before{
  content:"";position:absolute;left:-16px;top:8px;bottom:8px;width:3px;
  background:var(--accent);border-radius:0 3px 3px 0;
}
.sidebar__cta{margin-top:20px;justify-content:center}
.sidebar__foot{
  margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;line-height:1.9;color:rgba(255,255,255,.55);
}
.sidebar__foot p{margin:0}
.main{margin-left:248px;min-height:100vh;display:flex;flex-direction:column}
.main__inner{flex:1 1 auto}

.topbar{
  display:none;
  position:sticky;top:0;z-index:50;
  height:56px;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--brand-900);color:#fff;
}
.topbar .logo__mark{width:32px;height:32px;flex:0 0 32px;font-size:15px}
.topbar .logo__text strong{font-size:15px}
.topbar .logo__text small{display:none}
.topbar__toggle{
  width:40px;height:40px;border:0;border-radius:10px;background:rgba(255,255,255,.1);
  color:#fff;font-size:17px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.topbar__toggle:hover{background:rgba(255,255,255,.18)}
.drawer-overlay{
  position:fixed;inset:0;z-index:55;background:rgba(15,46,36,.55);
  opacity:0;pointer-events:none;transition:opacity .22s ease;display:none;
}
.drawer-overlay.is-open{opacity:1;pointer-events:auto}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--radius-sm);
  border:1.5px solid transparent;
  font-size:15.5px;font-weight:600;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(226,84,42,.24)}
.btn--accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px)}
.btn--accent:active{transform:translateY(1px)}
.btn--ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn--outline:hover{background:var(--moss-100);color:var(--brand-700)}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);
  background:var(--moss-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;font-weight:700;
  color:var(--accent);margin:0 0 12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:14px;color:var(--muted);
  padding:22px 0 0;
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs span[aria-hidden]{color:var(--divider)}
.crumbs__current{color:var(--text);font-weight:600}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:16px;
  border-radius:var(--radius);
  background-image:linear-gradient(90deg,rgba(15,46,36,.9),rgba(15,46,36,.6)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
  padding:56px 48px 48px;
}
.page-hero::after{
  content:"";position:absolute;right:-70px;bottom:-70px;width:300px;height:300px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.3) 0 9px,transparent 9px 20px);
  border-radius:50%;opacity:.55;pointer-events:none;
}
.page-hero h1{color:#fff;max-width:760px;position:relative;z-index:1}
.page-hero__lead{
  position:relative;z-index:1;
  max-width:660px;margin:18px 0 0;
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);
}
.page-hero__actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;gap:32px;margin-top:36px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.2);
}
.hero-stats li{padding-left:16px;border-left:1px solid rgba(255,255,255,.28)}
.hero-stats strong{display:block;font-family:var(--font-serif);font-size:24px;color:#fff;line-height:1.3}
.hero-stats span{font-size:13.5px;color:rgba(255,255,255,.68)}

/* ---------- 目录式主体 ---------- */
.section{padding:72px 0 0}
.section__head{max-width:720px;margin-bottom:30px}
.section__head h2{margin-top:0}
.section__head p{margin-bottom:0;color:var(--muted)}
.section--tight{padding-top:56px}

.catalog{display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start}
.toc{
  position:sticky;top:32px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 18px;box-shadow:var(--shadow-1);
}
.toc__title{font-size:13px;letter-spacing:2px;color:var(--muted);margin:0 0 12px;font-weight:700}
.toc__list{display:flex;flex-direction:column;gap:2px}
.toc__link{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:15px;color:var(--body);
  border-left:2px solid transparent;
}
.toc__link i{font-size:6px;color:var(--moss);transition:color .18s ease}
.toc__link:hover{background:var(--bg-2);color:var(--brand-700)}
.toc__link.is-active{background:var(--moss-100);color:var(--brand-700);font-weight:600;border-left-color:var(--accent)}
.toc__link.is-active i{color:var(--accent)}
.toc__note{
  margin:16px 0 0;padding-top:14px;border-top:1px dashed var(--divider);
  font-size:13.5px;line-height:1.75;color:var(--muted);
}

.rows{display:flex;flex-direction:column;gap:14px}
.row{
  display:grid;grid-template-columns:200px minmax(0,1fr);gap:22px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.row:hover{transform:translateX(4px);border-color:var(--moss);box-shadow:var(--shadow-2)}
.row__thumb{
  width:200px;height:120px;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-2);
}
.row__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.row:hover .row__thumb img{transform:scale(1.04)}
.row__body{display:flex;flex-direction:column;gap:6px;min-width:0}
.row__top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.row__no{
  font-family:var(--font-serif);font-size:14px;font-weight:700;color:var(--accent);
  letter-spacing:1px;
}
.row__title{font-size:18px;margin:0}
.row:hover .row__title{color:var(--accent)}
.row__desc{margin:0;font-size:15.5px;line-height:1.75;color:var(--body)}
.row__meta{margin-top:2px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.row__meta i{color:var(--moss)}

/* ---------- 指标卡 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  margin-top:8px;
}
.metric{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.metric:hover{border-color:var(--moss);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.metric__num{
  font-family:var(--font-serif);font-size:28px;color:var(--brand-700);line-height:1.2;
  display:flex;align-items:baseline;gap:6px;
}
.metric__num small{font-size:14px;color:var(--muted);font-family:var(--font-sans)}
.metric__label{margin-top:8px;font-size:15px;font-weight:600;color:var(--text)}
.metric__desc{margin:6px 0 0;font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- 功能对照表 ---------- */
.table-wrap{
  overflow-x:auto;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow-1);
}
table{width:100%;border-collapse:collapse;min-width:680px}
thead th{
  background:var(--brand-900);color:#fff;font-size:14.5px;font-weight:600;
  text-align:left;padding:14px 20px;letter-spacing:.3px;
}
tbody td{padding:14px 20px;border-top:1px solid var(--divider);font-size:15.5px;vertical-align:top}
tbody tr:nth-child(even){background:var(--bg-2)}
tbody tr:hover{background:var(--moss-100)}
tbody td:first-child{color:var(--text);font-weight:600;white-space:nowrap}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px}
.faq__item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item.is-open{border-color:var(--moss);box-shadow:var(--shadow-2)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:18px 22px;font-size:17px;font-weight:700;color:var(--text);
}
.faq__q:hover{color:var(--brand-700)}
.faq__icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--moss-100);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .24s ease,background .2s ease,color .2s ease;
}
.faq__item.is-open .faq__icon{transform:rotate(180deg);background:var(--accent);color:#fff}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq__a p{margin:0;padding:0 22px 20px;font-size:15.5px;line-height:1.8;color:var(--body)}

/* ---------- 交叉链接 ---------- */
.xlinks{margin-top:8px}
.xlinks__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.xlink{
  display:block;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.xlink:hover{transform:translateY(-2px);border-color:var(--moss);box-shadow:var(--shadow-2)}
.xlink img{width:100%;height:150px;object-fit:cover}
.xlink__body{padding:16px 18px 18px}
.xlink__body strong{display:block;font-size:16.5px;color:var(--text)}
.xlink:hover .xlink__body strong{color:var(--accent)}
.xlink__body span{display:block;margin-top:6px;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- CTA ---------- */
.cta{
  margin-top:80px;
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 10px,transparent 10px 22px),
    var(--brand-900);
  color:#fff;padding:56px 0;
}
.cta__inner{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:44px;align-items:center}
.cta h2{color:#fff;margin:0 0 12px}
.cta p{margin:0;color:rgba(255,255,255,.78);font-size:15.5px;max-width:520px}
.cta__form{display:flex;flex-wrap:wrap;gap:12px}
.cta__form input{
  flex:1 1 220px;height:46px;padding:0 16px;
  border-radius:var(--radius-sm);border:1.5px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);color:#fff;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.cta__form input::placeholder{color:rgba(255,255,255,.55)}
.cta__form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,84,42,.3);background:rgba(255,255,255,.12)}
.cta__form.is-error input{border-color:#F0A08C}
.form-note{flex:1 1 100%;margin:0;font-size:13px;color:rgba(255,255,255,.66)}
.form-note.is-error{color:#F6B7A6}
.form-note.is-ok{color:#9FE0C2}

/* ---------- 页脚 ---------- */
.footer{background:#0B241C;color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer__brand strong{font-size:16px}
.footer h3{color:#fff;font-size:15px;margin:0 0 14px;letter-spacing:.4px}
.footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);margin:0}
.footer__list{display:flex;flex-direction:column;gap:10px}
.footer__list a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer__list a:hover{color:var(--accent)}
.footer__contact{display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.footer__contact i{color:var(--moss);width:18px}
.footer__bottom{
  margin-top:44px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .sidebar{width:72px;padding:20px 12px;align-items:center}
  .sidebar .logo__text,
  .side-nav__title,
  .nav__link span,
  .sidebar__cta span,
  .sidebar__foot{display:none}
  .nav__link{justify-content:center;padding:12px 0;width:44px;height:44px}
  .nav__link.is-active::before{left:-12px}
  .sidebar__cta{margin-top:18px;min-height:44px;width:44px;padding:0;justify-content:center}
  .main{margin-left:72px}
  .catalog{grid-template-columns:220px minmax(0,1fr);gap:28px}
  .cta__inner{grid-template-columns:minmax(0,1fr) 360px;gap:32px}
}
@media (max-width:1023px){
  .sidebar{width:280px;padding:22px 16px;transform:translateX(-100%)}
  .sidebar.is-open{transform:translateX(0);box-shadow:var(--shadow-3)}
  .sidebar .logo__text,
  .side-nav__title,
  .nav__link span,
  .sidebar__cta span,
  .sidebar__foot{display:revert}
  .sidebar .logo__text{display:flex}
  .side-nav__title{display:block}
  .nav__link{justify-content:flex-start;padding:11px 12px;width:auto;height:auto}
  .nav__link.is-active::before{left:-16px}
  .sidebar__cta{width:100%;min-height:46px;padding:0 22px;justify-content:center}
  .main{margin-left:0}
  .topbar{display:flex}
  .drawer-overlay{display:block}
  h1{font-size:32px}
  h2{font-size:24px}
  .page-hero{padding:40px 26px 34px;border-radius:var(--radius-sm)}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .catalog{grid-template-columns:minmax(0,1fr);gap:24px}
  .toc{position:static}
  .toc__list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .toc__link{background:var(--bg-2);border-left:0;padding:8px 14px;border-radius:var(--radius-pill);font-size:14px}
  .toc__link i{display:none}
  .toc__note{display:none}
  .cta__inner{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding-top:52px}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .page-hero{padding:32px 20px 28px}
  .page-hero__lead{font-size:16px}
  .hero-stats{gap:20px;margin-top:26px;padding-top:20px}
  .hero-stats li{padding-left:12px}
  .hero-stats strong{font-size:20px}
  .row{grid-template-columns:minmax(0,1fr);gap:14px}
  .row__thumb{width:100%;height:auto;aspect-ratio:16/9}
  .row:hover{transform:none}
  .xlinks__grid{grid-template-columns:minmax(0,1fr)}
  .metrics{grid-template-columns:minmax(0,1fr)}
  .footer{padding-top:44px}
  .footer__grid{grid-template-columns:minmax(0,1fr)}
  .footer__bottom{flex-direction:column;gap:6px}
  .cta{padding:44px 0}
}
@media (max-width:479px){
  .btn{width:100%;justify-content:center}
  .cta__form input{flex:1 1 100%}
  .page-hero__actions{width:100%}
}

/* roulang page: category4 */
:root{
  --brand-900:#0F2E24;
  --brand-700:#1C5C46;
  --brand-500:#2F7F62;
  --accent:#E2542A;
  --accent-hover:#C8451F;
  --moss:#7FB69E;
  --moss-100:#E7F0EB;
  --bg:#FAF8F4;
  --card:#FFFFFF;
  --sub:#F2EFE9;
  --border:#E4E0D7;
  --line:#EDE9E1;
  --text:#16211D;
  --text-2:#3A4742;
  --text-3:#7C877F;
  --ok:#2F9E6B;
  --warn:#D98A1F;
  --err:#C8442F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,46,36,.06);
  --shadow-2:0 10px 28px rgba(15,46,36,.10);
  --shadow-3:0 16px 40px rgba(15,46,36,.18);
  --sidebar-w:248px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-2);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.3;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:var(--moss-100);color:var(--brand-900)}

/* ---------- 布局骨架 ---------- */
.shell{min-height:100vh}
.main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  padding-bottom:0;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:44px 0}
.section--tight{padding:28px 0}
.section--band{background:var(--sub);border-radius:20px;padding:48px 40px;margin:44px auto;max-width:1200px}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--brand-900);
  color:#fff;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:26px 18px 20px;
  z-index:60;
  transition:width .2s ease,padding .2s ease;
}
.logo{display:flex;align-items:center;gap:11px}
.logo__mark{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
  color:#fff;
  display:grid;place-items:center;
  font-weight:700;
  font-size:15px;
  letter-spacing:.5px;
  border:1px solid rgba(255,255,255,.16);
}
.logo__text{display:flex;flex-direction:column;line-height:1.25;font-size:15px;font-weight:700;color:#fff}
.logo__text em{font-style:normal;font-size:12px;font-weight:400;color:rgba(255,255,255,.6);letter-spacing:.4px}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.side-nav__title{
  font-size:12px;
  letter-spacing:1.6px;
  color:rgba(255,255,255,.42);
  padding:0 0 8px 4px;
  display:block;
}
.nav__link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  border-radius:8px;
  font-size:15px;
  color:rgba(255,255,255,.76);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav__link i{width:18px;text-align:center;font-size:14px;opacity:.9}
.nav__link:hover{background:rgba(255,255,255,.07);color:#fff;transform:translateX(2px)}
.nav__link.is-active{background:rgba(255,255,255,.08);color:#fff;font-weight:600}
.nav__link.is-active::before{
  content:"";
  position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:var(--accent);border-radius:0 3px 3px 0;
}
.sidebar__cta{width:100%;justify-content:center}
.sidebar__foot{
  font-size:12px;
  line-height:1.7;
  color:rgba(255,255,255,.5);
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:14px;
}
.sidebar__foot span{display:block}
.sidebar__dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--ok);margin-right:6px}

/* ---------- 顶部栏 + 抽屉（移动端） ---------- */
.topbar{
  display:none;
  position:sticky;top:0;
  height:56px;
  background:var(--brand-900);
  color:#fff;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  z-index:70;
}
.topbar .logo__mark{width:34px;height:34px;flex:0 0 34px;font-size:14px}
.topbar .logo__text{font-size:14px}
.topbar__btn{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  width:38px;height:38px;
  border-radius:10px;
  display:grid;place-items:center;
  cursor:pointer;
  transition:background .18s ease;
}
.topbar__btn:hover{background:rgba(255,255,255,.2)}
.overlay{
  position:fixed;inset:0;
  background:rgba(15,46,36,.55);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
  z-index:80;
}
.overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;
  width:280px;
  background:var(--brand-900);
  color:#fff;
  padding:22px 18px;
  transform:translateX(-102%);
  transition:transform .2s ease;
  z-index:90;
  overflow-y:auto;
  box-shadow:var(--shadow-3);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{
  background:transparent;border:1px solid rgba(255,255,255,.2);color:#fff;
  width:34px;height:34px;border-radius:9px;cursor:pointer;
}
.drawer .side-nav{margin-bottom:18px}
.drawer .side-nav__title{color:rgba(255,255,255,.45)}

/* ---------- 面包屑条 ---------- */
.crumb-bar{
  position:sticky;top:0;
  background:rgba(250,248,244,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  z-index:40;
}
.crumbs{
  display:flex;align-items:center;gap:9px;
  font-size:13.5px;color:var(--text-3);
  padding:12px 0;
  flex-wrap:wrap;
}
.crumbs a{color:var(--text-3);transition:color .16s ease}
.crumbs a:hover{color:var(--accent)}
.crumbs i{font-size:10px;opacity:.6}
.crumbs span[aria-current]{color:var(--text);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background-image:linear-gradient(100deg,rgba(15,46,36,.94) 0%,rgba(15,46,36,.78) 52%,rgba(15,46,36,.6) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:68px 0 60px;
}
.hero::after{
  content:"";
  position:absolute;right:0;bottom:0;
  width:220px;height:140px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.55) 0 6px,transparent 6px 15px);
  clip-path:polygon(100% 0,100% 100%,0 100%);
  opacity:.45;
  pointer-events:none;
}
.hero__inner{position:relative;z-index:2;max-width:760px}
.hero h1{color:#fff;font-family:var(--font-serif);font-size:42px;letter-spacing:.4px;margin:16px 0 14px}
.hero__sub{color:rgba(255,255,255,.84);font-size:17px;line-height:1.8;margin:0 0 26px;max-width:640px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero__meta{
  display:flex;gap:0;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.16);
  padding-top:20px;
}
.hero__meta li{
  flex:1 1 160px;
  padding-right:20px;
  border-left:2px solid rgba(255,255,255,.22);
  padding-left:16px;
  margin-right:20px;
}
.hero__meta li:first-child{margin-left:0}
.hero__meta b{display:block;font-size:19px;color:#fff;font-weight:700}
.hero__meta small{color:rgba(255,255,255,.66);font-size:13px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:var(--radius-pill);
  background:var(--moss-100);
  color:var(--brand-700);
  font-size:13px;
  line-height:1;
  font-weight:600;
}
.badge--light{background:rgba(127,182,158,.24);color:#DCEFE6}
.badge--accent{background:rgba(226,84,42,.14);color:var(--accent-hover)}
.badge--ghost{background:var(--sub);color:var(--text-3);font-weight:500}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(226,84,42,.26)}
.btn--accent:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 10px 22px rgba(226,84,42,.3)}
.btn--accent:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{border-color:var(--brand-500);color:var(--brand-700);background:transparent}
.btn--ghost:hover{background:var(--moss-100)}
.btn--light{background:#fff;color:var(--brand-900)}
.btn--light:hover{background:var(--moss-100)}
.btn--outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn--outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{
  color:var(--brand-700);
  font-weight:600;
  border-bottom:2px solid var(--moss);
  padding-bottom:2px;
  transition:color .16s ease,border-color .16s ease;
}
.link-more:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- 板块标题 ---------- */
.sec-head{max-width:760px;margin-bottom:30px}
.sec-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:10px;
}
.sec-head h2{
  position:relative;
  font-family:var(--font-serif);
  font-size:28px;
  padding-left:16px;
  margin-bottom:12px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--accent);border-radius:2px;
}
.sec-head p{color:var(--text-3);font-size:15.5px;margin:0}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* ---------- 下载入口卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
  overflow:hidden;
}
.card:hover{box-shadow:var(--shadow-2);border-color:var(--moss);transform:translateY(-2px)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:22px 22px 24px}
.card__body h3{font-size:19px;margin-bottom:8px}
.card:hover .card__body h3{color:var(--accent)}
.card__body p{font-size:15px;color:var(--text-3);margin-bottom:16px}
.card__tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:14px}
.card__foot .price{font-size:13px;color:var(--text-3)}
.card__arrow{color:var(--accent);font-size:14px;transition:transform .2s ease}
.card:hover .card__arrow{transform:translateX(4px)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin:0}
.step{position:relative;padding:0 0 34px 66px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:21px;top:44px;bottom:0;width:2px;
  background:var(--line);
}
.step:last-child::before{display:none}
.step__no{
  position:absolute;left:0;top:0;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid var(--moss);
  color:var(--brand-700);
  display:grid;place-items:center;
  font-weight:700;font-size:15px;
  font-family:var(--font-serif);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.step:hover .step__no,.step.is-key .step__no{background:var(--accent);border-color:var(--accent);color:#fff}
.step__body{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.step:hover .step__body{box-shadow:var(--shadow-2);border-color:var(--moss);transform:translateX(4px)}
.step__top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.step__body h3{font-size:19px}
.step__body p{font-size:15.5px;color:var(--text-2);margin:0}
.step__hint{
  display:block;margin-top:12px;padding-top:12px;
  border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--text-3);
}
.step__hint i{color:var(--brand-500);margin-right:6px}

/* ---------- 指标卡 ---------- */
.stat{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.stat:hover{box-shadow:var(--shadow-2);border-color:var(--moss);transform:translateY(-2px)}
.stat i{font-size:18px;color:var(--brand-500);margin-bottom:12px;display:block}
.stat b{display:block;font-family:var(--font-serif);font-size:20px;color:var(--text);margin-bottom:6px}
.stat span{font-size:14px;color:var(--text-3);line-height:1.7;display:block}

/* ---------- 深色信息带 ---------- */
.band{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  color:#fff;
  border-radius:20px;
  padding:44px 40px;
  margin:48px auto;
  max-width:1200px;
}
.band::after{
  content:"";
  position:absolute;right:-40px;top:-40px;width:240px;height:240px;
  background:repeating-linear-gradient(45deg,rgba(226,84,42,.4) 0 6px,transparent 6px 15px);
  opacity:.35;transform:rotate(0deg);
}
.band__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.band h2{color:#fff;font-family:var(--font-serif);font-size:26px;margin-bottom:12px}
.band p{color:rgba(255,255,255,.76);font-size:15.5px;margin:0}
.band__list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.band__list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.82)}
.band__list i{color:var(--moss);margin-top:5px;font-size:13px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--border)}
.faq__item{border-bottom:1px solid var(--border)}
.faq__q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;
  padding:22px 4px;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  cursor:pointer;
  transition:color .18s ease;
}
.faq__q:hover{color:var(--accent)}
.faq__q i{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--border);
  display:grid;place-items:center;
  font-size:12px;color:var(--brand-700);
  transition:transform .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.faq__item.is-open .faq__q i{transform:rotate(180deg);background:var(--accent);border-color:var(--accent);color:#fff}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
  background:var(--sub);
  border-radius:10px;
}
.faq__item.is-open .faq__a{max-height:360px}
.faq__a p{padding:18px 20px;font-size:15.5px;line-height:1.8;color:var(--text-2);margin:0}

/* ---------- 交叉链接 ---------- */
.xlink{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.xlink__item{
  display:flex;align-items:center;gap:16px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:20px 22px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.xlink__item:hover{box-shadow:var(--shadow-2);border-color:var(--moss);transform:translateY(-2px)}
.xlink__item i{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:var(--moss-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:16px;
  transition:background .2s ease,color .2s ease;
}
.xlink__item:hover i{background:var(--accent);color:#fff}
.xlink__item b{display:block;font-size:16px;color:var(--text);margin-bottom:2px}
.xlink__item span{font-size:13.5px;color:var(--text-3)}
.xlink__item em{margin-left:auto;color:var(--accent);font-style:normal}

/* ---------- CTA 表单 ---------- */
.cta-form{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-start}
.field{flex:1 1 260px;display:flex;flex-direction:column;gap:8px}
.field input{
  height:46px;
  width:100%;
  border-radius:var(--radius-btn);
  border:1.5px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);
  color:#fff;
  padding:0 16px;
  font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field input::placeholder{color:rgba(255,255,255,.5)}
.field input:focus{
  outline:none;
  border-color:var(--accent);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(226,84,42,.28);
}
.cta-form.is-error .field input{border-color:var(--err);box-shadow:0 0 0 3px rgba(200,68,47,.28)}
.form-tip{font-size:12.5px;color:rgba(255,255,255,.62);margin:0}
.form-tip.is-error{color:#F3B4A6}
.form-tip.is-ok{color:#A9E0C6}
.form-note{font-size:12.5px;color:rgba(255,255,255,.52);margin-top:10px;width:100%}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:56px 0 24px;
  margin-top:48px;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer__brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer__brand strong{color:#fff;font-size:16px}
.footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer h3{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer__list li{margin-bottom:9px}
.footer__list a{font-size:14px;color:rgba(255,255,255,.68);transition:color .16s ease,padding-left .18s ease}
.footer__list a:hover{color:#fff;padding-left:4px}
.footer__contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px;align-items:flex-start}
.footer__contact i{color:var(--moss);margin-top:5px;font-size:13px}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.5);
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px) and (min-width:1024px){
  .sidebar{width:72px;padding:22px 10px;align-items:center}
  .sidebar .logo__text,
  .sidebar .nav__link span,
  .sidebar .sidebar__cta span,
  .sidebar .side-nav__title,
  .sidebar .sidebar__foot{display:none}
  .sidebar .logo{justify-content:center}
  .side-nav{width:100%}
  .nav__link{justify-content:center;padding:13px 0}
  .sidebar__cta{width:44px;height:44px;padding:0;border-radius:12px}
  .main{margin-left:72px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0}
  .crumb-bar{position:static}
  .hero{padding:52px 0 44px}
  .hero h1{font-size:32px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .band__inner{grid-template-columns:1fr;gap:26px}
  .band{padding:36px 26px;margin:36px 16px}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .section{padding:34px 0}
  .hero h1{font-size:28px}
  .hero__sub{font-size:15.5px}
  .hero__meta li{flex:1 1 100%;margin:0 0 14px;padding-left:14px}
  .sec-head h2{font-size:23px}
  .grid-3,.grid-2,.xlink{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr}
  .step{padding-left:56px}
  .step::before{left:19px}
  .step__no{width:40px;height:40px;font-size:14px}
  .step__body{padding:18px 18px}
  .band{border-radius:16px;padding:30px 20px;margin:30px 12px}
  .band h2{font-size:22px}
  .section--band{padding:32px 20px;border-radius:16px}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .hero{padding:40px 0 34px}
  .hero h1{font-size:25px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .card__body{padding:16px}
  .step{padding-left:0;padding-top:56px}
  .step::before{left:19px;top:46px}
  .btn{width:100%}
  .xlink__item{flex-wrap:wrap}
  .xlink__item em{margin-left:0}
}