/* roulang page: index */
:root{
  --brand:#0F3B33;
  --brand-deep:#08251F;
  --accent:#C8F24E;
  --gray-green:#7A8B7F;
  --light-green:#E4EDD9;
  --bg:#FBFAF6;
  --bg-alt:#F4F2EA;
  --ink:#141A18;
  --ink-2:#4A544E;
  --ink-3:#8A928C;
  --line:#E5E2D8;
  --line-soft:#EFEDE4;
  --white:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(15,59,51,.05);
  --shadow-2:0 12px 28px rgba(15,59,51,.09);
  --container:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.2;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--alt{background:var(--bg-alt);}
.section--dark{background:var(--brand);color:#fff;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);text-transform:none;
}
.eyebrow::before{content:"";width:40px;height:3px;background:var(--accent);display:block;}

.sec-head{margin-bottom:48px;max-width:760px;}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);line-height:1.22;margin-top:18px;}
.sec-head p{margin-top:16px;color:var(--ink-2);font-size:16px;}

.sec-head--split{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:32px;max-width:none;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform 180ms var(--ease),background-color 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--accent);color:var(--brand-deep);box-shadow:var(--shadow-1);}
.btn--primary:hover{background:#d4f76a;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(8,37,31,.22);}
.btn--ghost{background:transparent;color:var(--brand);border:1px solid #CFD6CE;}
.btn--ghost:hover{border-color:var(--brand);background:rgba(15,59,51,.04);transform:translateY(-1px);}
.btn--dark{background:var(--brand);color:#fff;}
.btn--dark:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--block{width:100%;}
.btn--sm{padding:10px 18px;font-size:14px;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:700;color:var(--brand);
  position:relative;
}
.link-arrow span{position:relative;}
.link-arrow span::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--accent);transition:width 220ms var(--ease);
}
.link-arrow:hover span::after{width:100%;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--light-green);color:var(--brand);
  font-size:12px;font-weight:700;line-height:1.6;letter-spacing:.02em;
}
.badge--outline{background:transparent;border:1px solid rgba(15,59,51,.2);}
.badge--ghost-dark{background:rgba(255,255,255,.1);color:var(--accent);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  height:72px;
  background:rgba(251,250,246,.72);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.95);
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(15,59,51,.05);
}
.nav{
  height:100%;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  display:grid;place-items:center;flex-shrink:0;
}
.brand__text{
  font-size:17px;font-weight:900;letter-spacing:-.01em;color:var(--brand);
  display:flex;align-items:center;gap:8px;white-space:nowrap;
}
.brand__text em{font-style:normal;font-size:11px;font-weight:700;background:var(--accent);color:var(--brand-deep);padding:3px 8px;border-radius:var(--r-pill);letter-spacing:.04em;}

.nav__channels{
  display:flex;align-items:center;gap:4px;margin-left:12px;
}
.nav__link{
  position:relative;padding:8px 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;transition:color 180ms var(--ease),background-color 180ms var(--ease);
  white-space:nowrap;
}
.nav__link:hover{color:var(--brand);background:rgba(15,59,51,.05);}
.nav__link.is-active{color:var(--brand);font-weight:700;}
.nav__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav__right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav__search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.nav__search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,242,78,.45);}
.nav__search input{
  flex:1;border:0;background:transparent;outline:none;font-size:14px;
}
.nav__search input::placeholder{color:var(--ink-3);}
.nav__burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);
  align-items:center;justify-content:center;
}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:84%;max-width:380px;z-index:120;
  background:var(--bg);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform 320ms var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__mask{
  position:fixed;inset:0;background:rgba(8,37,31,.42);z-index:110;
  opacity:0;visibility:hidden;transition:opacity 260ms var(--ease),visibility 260ms var(--ease);
}
.drawer__mask.is-open{opacity:1;visibility:visible;}
.drawer__top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;}
.drawer__nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer__nav a{
  padding:14px 12px;border-radius:10px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer__nav a.is-active{color:var(--brand);background:var(--light-green);border-bottom-color:transparent;}
.drawer__cta{display:flex;flex-direction:column;gap:10px;margin-top:auto;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 88px;
  background:
    radial-gradient(720px 460px at 6% 0%, rgba(15,59,51,.06), transparent 70%),
    var(--bg);
}
.hero::after{
  content:"";position:absolute;top:0;right:0;width:44%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,242,78,.9));
  transform:rotate(-8deg);transform-origin:right top;
  opacity:.75;pointer-events:none;
}
.hero__grid{
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  min-height:560px;
}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.hero h1{
  font-size:clamp(34px,5.6vw,60px);
  font-weight:900;line-height:1.08;letter-spacing:-.02em;
  color:var(--brand-deep);
}
.hero h1 mark{background:linear-gradient(transparent 62%,rgba(200,242,78,.85) 62%);color:inherit;padding:0 2px;}
.hero__sub{
  margin-top:22px;font-size:clamp(17px,1.7vw,20px);line-height:1.75;
  color:var(--ink-2);max-width:58ch;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero__note{margin-top:18px;font-size:13px;color:var(--gray-green);line-height:1.7;}

.hero-visual{position:relative;display:flex;justify-content:center;}
.phone-frame{
  position:relative;width:100%;max-width:330px;aspect-ratio:9 / 16;
  border:8px solid var(--brand);border-radius:28px;overflow:hidden;
  background:var(--brand-deep);
  box-shadow:0 18px 40px rgba(15,59,51,.16);
  animation:heroFloat 6s ease-in-out infinite;
}
.phone-frame img{width:100%;height:100%;object-fit:cover;}
.phone-frame .lane{
  position:absolute;inset:0;opacity:.08;pointer-events:none;
}
.float-card{
  position:absolute;right:-6px;bottom:38px;
  display:flex;align-items:center;gap:10px;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:12px 16px;box-shadow:var(--shadow-2);
  max-width:230px;
}
.float-card .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(200,242,78,.28);flex-shrink:0;}
.float-card span{font-size:13px;font-weight:600;color:var(--brand);line-height:1.5;}
@keyframes heroFloat{0%,100%{transform:translateY(0);}50%{transform:translateY(-4px);}}

/* ============ 数据条 ============ */
.stats{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg);
}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:36px 28px 36px 0;position:relative;}
.stat + .stat{border-left:1px solid var(--line);padding-left:28px;}
.stat__num{
  font-family:Inter,system-ui,-apple-system,sans-serif;
  font-size:clamp(34px,4.4vw,52px);font-weight:900;line-height:1;
  color:var(--brand-deep);letter-spacing:-.03em;
}
.stat__num b{color:inherit;}
.stat__bar{width:36px;height:3px;background:var(--accent);margin-top:12px;}
.stat__label{margin-top:12px;font-size:13px;color:var(--gray-green);letter-spacing:.02em;}

/* ============ 三步上手 ============ */
.steps{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start;}
.steps__intro h2{font-size:clamp(26px,3.4vw,38px);margin-top:18px;}
.steps__intro p{margin-top:16px;color:var(--ink-2);}
.steps__figure{
  margin-top:32px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.steps__figure img{width:100%;aspect-ratio:16 / 10;object-fit:cover;}

.step-list{display:flex;flex-direction:column;gap:18px;}
.step{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 30px 28px 96px;
  box-shadow:var(--shadow-1);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:#C9D3C6;box-shadow:var(--shadow-2);}
.step:nth-child(even){margin-left:36px;}
.step__num{
  position:absolute;left:28px;top:24px;
  font-family:Inter,system-ui,sans-serif;font-size:44px;font-weight:900;line-height:1;
  color:var(--brand);opacity:.12;letter-spacing:-.04em;
}
.step__tag{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand);
  background:var(--light-green);border-radius:var(--r-pill);padding:3px 10px;margin-bottom:10px;
}
.step h3{font-size:20px;color:var(--brand-deep);}
.step p{margin-top:8px;font-size:15.5px;color:var(--ink-2);line-height:1.85;}

/* ============ 功能特点 ============ */
.features{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.feature-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.feature-media img{width:100%;aspect-ratio:16 / 10;object-fit:cover;transition:transform 320ms var(--ease);}
.feature-media:hover img{transform:scale(1.03);}
.feature-list{display:flex;flex-direction:column;gap:2px;margin-top:8px;}
.feature-item{
  display:grid;grid-template-columns:44px 1fr;gap:16px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.feature-item:last-child{border-bottom:0;}
.feature-item .ico{
  width:44px;height:44px;border-radius:12px;background:var(--light-green);
  display:grid;place-items:center;color:var(--brand);
}
.feature-item h3{font-size:19px;color:var(--brand-deep);letter-spacing:-.01em;}
.feature-item p{margin-top:6px;font-size:15.5px;color:var(--ink-2);line-height:1.85;}

/* ============ 案例拼版 ============ */
.cases{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.case-main{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.case-main:hover{transform:translateY(-2px);border-color:#C9D3C6;box-shadow:var(--shadow-2);}
.case-main__img{overflow:hidden;}
.case-main__img img{width:100%;aspect-ratio:16 / 9;object-fit:cover;transition:transform 320ms var(--ease);}
.case-main:hover .case-main__img img{transform:scale(1.03);}
.case-main__body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1;}
.case-main__quote{font-size:19px;font-weight:700;line-height:1.65;color:var(--brand-deep);letter-spacing:-.01em;}
.case-main__meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;}
.case-main__metric{
  font-family:Inter,system-ui,sans-serif;font-size:28px;font-weight:900;color:var(--brand);letter-spacing:-.02em;
}
.case-main__metric small{display:block;font-family:inherit;font-size:12px;font-weight:500;color:var(--gray-green);letter-spacing:0;}

.case-side{display:flex;flex-direction:column;gap:24px;}
.case-card{
  flex:1;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:12px;
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.case-card:hover{transform:translateY(-2px);border-color:#C9D3C6;box-shadow:var(--shadow-2);}
.case-card p{font-size:16px;line-height:1.75;color:var(--ink-2);}
.case-card span{font-size:13px;color:var(--gray-green);}

.tag-scroller{
  margin-top:36px;display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tag-scroller::-webkit-scrollbar{display:none;}
.tag-scroller .chip{
  flex-shrink:0;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--white);
  font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background-color 180ms var(--ease);
}
.tag-scroller .chip:hover{border-color:var(--brand);color:var(--brand);background:var(--light-green);}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;}
.news-lead{
  display:block;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.news-lead:hover{transform:translateY(-2px);border-color:#C9D3C6;box-shadow:var(--shadow-2);}
.news-lead__img{overflow:hidden;background:var(--bg-alt);}
.news-lead__img img{width:100%;aspect-ratio:16 / 10;object-fit:cover;transition:transform 320ms var(--ease);}
.news-lead:hover .news-lead__img img{transform:scale(1.03);}
.news-lead__body{padding:26px;display:flex;flex-direction:column;gap:12px;}
.news-lead__body h3{font-size:21px;line-height:1.45;color:var(--brand-deep);}
.news-lead__body p{font-size:15.5px;color:var(--ink-2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--gray-green);}

.news-list{display:flex;flex-direction:column;}
.news-row{
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:padding-left 180ms var(--ease);
}
.news-row:first-child{padding-top:0;}
.news-row:hover{padding-left:8px;}
.news-row h3{font-size:17px;font-weight:700;color:var(--brand-deep);line-height:1.55;letter-spacing:0;}
.news-row p{
  margin-top:6px;font-size:14.5px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row__side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;font-size:12.5px;color:var(--gray-green);white-space:nowrap;}

.empty-state{
  border:1px dashed #CFD6CE;border-radius:var(--r-card);
  padding:56px 28px;text-align:center;background:var(--white);
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:var(--light-green);display:grid;place-items:center;color:var(--brand);
}
.empty-state p{color:var(--ink-2);font-size:15.5px;}
.empty-state .btn{margin-top:20px;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside{position:sticky;top:96px;}
.faq-aside h2{font-size:clamp(26px,3.2vw,36px);margin-top:18px;}
.faq-aside p{margin-top:16px;color:var(--ink-2);font-size:15.5px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:18px;font-weight:600;color:var(--brand-deep);
  line-height:1.6;letter-spacing:-.005em;
}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;background:var(--light-green);
  display:grid;place-items:center;color:var(--brand);
  transition:transform 200ms var(--ease),background-color 200ms var(--ease);
}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--accent);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 260ms var(--ease),opacity 200ms var(--ease),padding 260ms var(--ease);
  opacity:0;
}
.faq-item.is-open .faq-a{max-height:340px;opacity:1;padding-bottom:22px;}
.faq-a p{font-size:16px;color:var(--ink-2);line-height:1.9;max-width:66ch;}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 104px;}
.cta{
  background:var(--brand);color:#fff;border-radius:24px;overflow:hidden;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;
  padding:56px;position:relative;
}
.cta::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,242,78,.20),transparent 66%);
}
.cta__copy{position:relative;z-index:1;}
.cta__copy h2{font-size:clamp(26px,3.4vw,36px);color:#fff;}
.cta__copy p{margin-top:16px;color:#DDE7E0;font-size:16px;line-height:1.9;max-width:52ch;}
.cta__points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta__points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#DDE7E0;}
.cta__points svg{flex-shrink:0;margin-top:5px;}

.form-card{
  position:relative;z-index:1;background:var(--white);border-radius:var(--r-card);
  padding:28px;box-shadow:0 18px 40px rgba(8,37,31,.28);
}
.form-card h3{font-size:18px;color:var(--brand-deep);}
.form-card > p{margin-top:8px;font-size:13.5px;color:var(--gray-green);}
.field{margin-top:16px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:8px;}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--white);font-size:15px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),background-color 180ms var(--ease);
}
.field input::placeholder{color:#A9B0AA;}
.field input:hover{border-color:#CFD6CE;}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,242,78,.45);}
.field input:disabled{background:#F1EFE7;cursor:not-allowed;}
.form-card .btn{margin-top:20px;}
.form-hint{margin-top:12px;font-size:12.5px;color:var(--gray-green);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand);color:#DDE7E0;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}
.footer-brand .brand__text{color:#fff;}
.footer-brand .brand__text em{background:var(--accent);color:var(--brand-deep);}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;color:#B9C8C0;max-width:34ch;}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14.5px;color:#B9C8C0;
  transition:color 180ms var(--ease),transform 180ms var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col .btn{margin-top:16px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:#93A79C;
}
.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact span{font-size:14.5px;color:#B9C8C0;}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:90;
  width:46px;height:46px;border-radius:50%;background:var(--brand);color:var(--accent);
  display:grid;place-items:center;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease),transform 240ms var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-deep);}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 320ms var(--ease),transform 320ms var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
  .phone-frame{animation:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav__search{width:180px;}
  .hero__grid{grid-template-columns:1fr 1fr;gap:40px;}
  .steps{grid-template-columns:1fr;gap:40px;}
  .features{grid-template-columns:1fr;gap:36px;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
}
@media (max-width:960px){
  .section{padding:80px 0;}
  .nav__channels{display:none;}
  .nav__search{display:none;}
  .nav__burger{display:inline-flex;}
  .hero__grid{grid-template-columns:1fr;gap:44px;min-height:0;}
  .hero{padding:48px 0 64px;}
  .hero__after{display:none;}
  .stats__grid{grid-template-columns:repeat(2,1fr);}
  .stat{padding:28px 20px 28px 0;}
  .stat + .stat{border-left:0;padding-left:0;border-top:1px solid var(--line);}
  .stat:nth-child(even){border-left:1px solid var(--line);padding-left:20px;}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0;}
  .cases{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .step:nth-child(even){margin-left:0;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .cta-wrap{padding:0 0 56px;}
  body{font-size:16px;}
  .hero h1{font-size:clamp(28px,8vw,36px);}
  .phone-frame{max-width:260px;}
  .float-card{right:0;bottom:20px;max-width:200px;padding:10px 12px;}
  .step{padding:24px 20px 24px 20px;}
  .step__num{position:static;display:block;font-size:32px;margin-bottom:6px;}
  .stat__num{font-size:32px;}
  .cta{padding:28px 20px;border-radius:20px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .sec-head{margin-bottom:32px;}
  .news-row{grid-template-columns:1fr;}
  .news-row__side{align-items:flex-start;flex-direction:row;}
  .to-top{right:16px;bottom:20px;}
}

/* roulang page: category1 */
:root{
  --ink:#0F3B33;
  --ink-deep:#08251F;
  --lime:#C8F24E;
  --sage:#7A8B7F;
  --light:#E4EDD9;
  --bg:#FBFAF6;
  --bg-alt:#F4F2EA;
  --t1:#141A18;
  --t2:#4A544E;
  --t3:#8A928C;
  --line:#E5E2D8;
  --line-dark:rgba(255,255,255,.12);
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(15,59,51,.05);
  --sh-2:0 12px 28px rgba(15,59,51,.09);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--ink);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:1240px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(251,250,246,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:36px;height:36px;border-radius:10px;background:var(--ink);display:flex;align-items:center;justify-content:center}
.brand__text{font-size:17px;font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:8px;letter-spacing:-.01em}
.brand__text em{
  font-style:normal;font-size:11px;font-weight:700;letter-spacing:0;
  background:var(--light);color:var(--ink);padding:3px 8px;border-radius:999px;
}
.nav__channels{display:flex;align-items:center;gap:26px}
.nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--t2);
  padding:8px 0;transition:color .18s var(--ease);
}
.nav__link:hover{color:var(--ink)}
.nav__link.is-active{color:var(--ink);font-weight:700}
.nav__link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--lime);border-radius:2px;
}
.nav__right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav__search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;
  padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav__search input{border:0;outline:none;background:transparent;width:100%;font-size:14px}
.nav__search input::placeholder{color:#A9B0A9}
.nav__search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(200,242,78,.45)}
.nav__burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.nav__burger:hover{border-color:#C9D3C6;transform:translateY(-1px)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn--primary{background:var(--lime);color:var(--ink-deep)}
.btn--primary:hover{background:#d4f86d;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(8,37,31,.18)}
.btn--ghost{background:transparent;border-color:#CFD6CE;color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn--ghost:active{transform:translateY(0)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--ink-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--block{width:100%}
.btn--on-dark{background:var(--lime);color:var(--ink-deep)}

/* ---------- drawer ---------- */
.drawer__mask{
  position:fixed;inset:0;background:rgba(8,37,31,.42);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:88;
}
.drawer__mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;
  background:var(--bg);padding:22px;overflow-y:auto;z-index:90;
  transform:translateX(102%);transition:transform .3s var(--ease);
  box-shadow:-12px 0 30px rgba(8,37,31,.16);
}
.drawer.is-open{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
.drawer__title{font-size:15px;font-weight:700;color:var(--ink);line-height:1.5}
.drawer__close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.drawer .nav__search{width:100%;margin-bottom:20px}
.drawer__nav a{
  display:block;padding:14px 0;font-size:16px;font-weight:500;color:var(--t2);
  border-bottom:1px solid var(--line);transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.drawer__nav a:hover{color:var(--ink)}
.drawer__nav a.is-active{color:var(--ink);font-weight:700}
.drawer__cta{display:grid;gap:12px;margin-top:24px}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);padding-top:22px;
}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:#C6CCC4}
.breadcrumb strong{color:var(--t2);font-weight:500}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:26px 0 68px;background:linear-gradient(180deg,#FBFAF6 0%,#F6F5EE 100%)}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 420px at 4% 0%,rgba(15,59,51,.07),transparent 68%);
}
.page-hero::after{
  content:"";position:absolute;top:0;right:0;width:38%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,242,78,.6));pointer-events:none;
}
.page-hero__grid{
  position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;
  gap:56px;align-items:center;padding-top:20px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--light);color:var(--ink);
  font-size:12px;font-weight:700;padding:6px 13px;border-radius:999px;
}
.badge--outline{background:#fff;border:1px solid var(--line);color:var(--t2);font-weight:500}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:900;letter-spacing:-.02em;line-height:1.14;
  margin:20px 0 18px;color:var(--t1);max-width:16em;
}
.page-hero__lead{font-size:18px;line-height:1.85;color:var(--t2);max-width:620px}
.page-hero__meta{font-size:13px;color:var(--t3);margin-top:18px;display:flex;flex-wrap:wrap;gap:16px}
.page-hero__figure{margin:0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--sh-2)}
.page-hero__figure img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .35s var(--ease)}
.page-hero__figure:hover img{transform:scale(1.03)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:500;color:var(--t2);
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.chip:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-1)}

/* ---------- layout ---------- */
.section{padding:88px 0}
.section--alt{background:var(--bg-alt)}
.layout{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.main-col{min-width:0}
.side-col{position:sticky;top:96px;display:grid;gap:20px}

/* ---------- content blocks ---------- */
.block{padding:34px 0;border-top:1px solid var(--line);scroll-margin-top:100px}
.block:first-child{border-top:0;padding-top:0}
.block h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.35;
  padding-left:16px;margin-bottom:16px;
}
.block h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;
  background:var(--lime);border-radius:2px;
}
.block__text{color:var(--t2);max-width:740px;margin-bottom:18px}
.list-check li{
  position:relative;padding-left:24px;margin-bottom:10px;
  font-size:16px;color:var(--t2);line-height:1.8;
}
.list-check li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;
  border-radius:2px;background:var(--lime);
}
.list-num{counter-reset:step}
.list-num li{
  position:relative;padding-left:36px;margin-bottom:12px;
  font-size:16px;color:var(--t2);line-height:1.8;
}
.list-num li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:4px;width:22px;height:22px;border-radius:50%;
  background:var(--ink);color:#fff;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.figure{
  margin:24px 0 0;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:#fff;
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.figure:hover img{transform:scale(1.03)}
.figure figcaption{padding:10px 14px;font-size:13px;color:var(--sage);line-height:1.7;background:#fff}
.block__note{
  margin-top:18px;padding:16px 18px;border-radius:12px;background:var(--bg-alt);
  border:1px solid var(--line);font-size:14.5px;color:var(--t2);line-height:1.8;
}

/* ---------- sidebar ---------- */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.side-card:hover{border-color:#C9D3C6;transform:translateY(-2px);box-shadow:var(--sh-2)}
.side-card__title{
  font-size:16px;font-weight:700;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.side-card__title::before{content:"";width:3px;height:14px;background:var(--lime);border-radius:2px}
.side-list li{
  position:relative;padding-left:28px;font-size:14.5px;color:var(--t2);
  line-height:1.75;margin-bottom:12px;
}
.side-list li:last-child{margin-bottom:0}
.side-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:2px;
  background:var(--lime);border-radius:2px;
}
.side-card--cta{background:var(--ink);border-color:transparent;color:#fff}
.side-card--cta:hover{border-color:transparent}
.side-card--cta .side-card__title{color:#fff}
.side-card--cta .side-card__title::before{background:var(--lime)}
.side-card--cta p{font-size:14.5px;color:#DDE7E0;line-height:1.8;margin-bottom:18px}
.side-card--cta .btn{width:100%}
.side-card--cta .side-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:500;color:var(--lime);
}
.side-card--cta .side-link:hover{text-decoration:underline}
.side-links li + li{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:15px;font-weight:500;color:var(--t1);transition:color .18s var(--ease);
}
.side-links a:hover{color:var(--ink)}
.side-links a span{font-size:13px;color:var(--t3);font-weight:400}

/* ---------- faq ---------- */
.faq{margin-top:10px;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item summary{
  display:flex;gap:16px;justify-content:space-between;align-items:flex-start;
  padding:20px 0;cursor:pointer;font-size:17px;font-weight:600;color:var(--t1);
  list-style:none;transition:color .18s var(--ease);
}
.faq__item summary:hover{color:var(--ink)}
.faq__item summary::-webkit-details-marker{display:none}
.faq__icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;margin-top:3px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.faq__item[open] .faq__icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime)}
.faq__a{padding:0 0 20px;color:var(--t2);font-size:16px;line-height:1.9;animation:fadeUp .22s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- cta band ---------- */
.cta-band{position:relative;background:var(--ink);color:#fff;overflow:hidden;scroll-margin-top:100px}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 340px at 86% 8%,rgba(200,242,78,.16),transparent 70%);
}
.cta-band__inner{
  position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;
  gap:56px;align-items:center;padding:76px 0;
}
.cta-band h2{font-size:clamp(26px,3vw,34px);font-weight:800;line-height:1.28;color:#fff;margin-bottom:14px}
.cta-band p{font-size:16px;line-height:1.85;color:#DDE7E0;max-width:520px}
.cta-band p + p{margin-top:8px}
.cta-form{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);color:var(--t1)}
.cta-form__title{font-size:17px;font-weight:700;margin-bottom:6px}
.cta-form__sub{font-size:13px;color:var(--t3);line-height:1.7;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--t2);margin-bottom:8px}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--t1);outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:#A9B0A9}
.field input:focus,.field select:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(200,242,78,.45)}
.field input:disabled{background:#F1EFE7;color:var(--t3)}
.field.has-error input{border-color:#C0453A}
.field__error{display:block;font-size:12px;color:#C0453A;margin-top:6px}
.form-note{font-size:12.5px;color:var(--t3);line-height:1.7;margin-top:12px}
.form-note a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#DDE7E0;padding:64px 0 28px}
.footer-grid{
  display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand__text{color:#fff;font-size:17px}
.footer-brand .brand__text em{background:rgba(255,255,255,.14);color:var(--lime)}
.footer-brand p{font-size:14.5px;color:#C7D5CC;line-height:1.8;margin-top:14px;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  display:inline-block;font-size:14.5px;color:#DDE7E0;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col ul a:hover{color:var(--lime);transform:translateX(2px)}
.footer-col .btn{margin-top:18px}
.footer-contact{display:grid;gap:10px;font-size:14.5px;color:#C7D5CC}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:13px;color:#9FB3A7;
}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--ink);border:0;cursor:pointer;z-index:60;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease),background .18s var(--ease);
}
.back-top.is-show{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--ink-deep)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav__channels{display:none}
  .nav__search{width:190px}
  .layout{grid-template-columns:1fr;gap:40px}
  .side-col{position:static}
  .page-hero__grid{grid-template-columns:1fr;gap:34px}
  .page-hero__figure img{aspect-ratio:16/9}
  .cta-band__inner{grid-template-columns:1fr;gap:36px;padding:60px 0}
}
@media (max-width:860px){
  .nav__search{display:none}
  .nav__burger{display:flex}
  .nav__right .btn--ghost{display:none}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 20px}
  .nav{height:60px;gap:14px}
  .brand__text{font-size:15px}
  .brand__mark{width:32px;height:32px}
  .nav__right .btn--primary{display:none}
  .page-hero{padding:14px 0 48px}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px)}
  .page-hero__lead{font-size:16px}
  .section{padding:52px 0}
  .block{padding:28px 0}
  .block h2{font-size:21px}
  .figure img{aspect-ratio:16/10}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .back-top{right:16px;bottom:18px;width:42px;height:42px}
  .cta-form{padding:22px}
}

/* roulang page: article */
:root{
  --brand:#0F3B33;
  --brand-deep:#08251F;
  --accent:#C8F24E;
  --muted-green:#7A8B7F;
  --light-green:#E4EDD9;
  --bg:#FBFAF6;
  --bg-alt:#F4F2EA;
  --ink:#141A18;
  --ink-2:#4A544E;
  --ink-3:#8A928C;
  --line:#E5E2D8;
  --line-strong:#C9D3C6;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(15,59,51,.05);
  --shadow-2:0 12px 28px rgba(15,59,51,.09);
  --sp:8px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--alt{background:var(--bg-alt);}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:900;color:var(--brand);letter-spacing:-.02em;position:relative;padding-top:22px;}
.section-title::before{content:"";position:absolute;top:0;left:0;width:40px;height:3px;background:var(--accent);border-radius:2px;}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:640px;}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  padding:14px 26px;
  font-size:15px;font-weight:700;line-height:1;
  transition:transform 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn--primary{background:var(--accent);color:var(--brand-deep);box-shadow:var(--shadow-1);}
.btn--primary:hover{background:#d5fa63;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,59,51,.18);}
.btn--ghost{background:transparent;border-color:#CFD6CE;color:var(--brand);}
.btn--ghost:hover{border-color:var(--brand);background:rgba(15,59,51,.04);transform:translateY(-1px);}
.btn--dark{background:var(--brand);color:#fff;}
.btn--dark:hover{background:var(--brand-deep);transform:translateY(-1px);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--block{width:100%;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--light-green);color:var(--brand);
  border-radius:999px;padding:5px 13px;font-size:12px;font-weight:700;line-height:1.6;
}
.badge--accent{background:var(--accent);color:var(--brand-deep);}
.badge--outline{background:transparent;border:1px solid var(--line-strong);color:var(--ink-2);font-weight:500;}
.textlink{color:var(--brand);font-weight:700;font-size:14px;position:relative;display:inline-flex;align-items:center;gap:6px;}
.textlink::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent);transition:width 200ms var(--ease);}
.textlink:hover::after{width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,250,246,0);
  transition:background 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,59,51,.05);
}
.nav{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand__text{font-size:16px;font-weight:900;color:var(--brand);letter-spacing:-.02em;display:flex;align-items:center;gap:8px;}
.brand__text em{
  font-style:normal;background:var(--light-green);color:var(--brand);
  font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;letter-spacing:0;
}
.nav__channels{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav__link{
  padding:8px 12px;font-size:14.5px;font-weight:500;color:var(--ink-2);
  border-radius:8px;position:relative;transition:color 180ms var(--ease),background 180ms var(--ease);
}
.nav__link:hover{color:var(--brand);background:rgba(15,59,51,.05);}
.nav__link.is-active{color:var(--brand);font-weight:700;}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;background:var(--accent);border-radius:2px;
}
.nav__right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav__search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.nav__search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,242,78,.45);}
.nav__search input{border:0;outline:0;background:transparent;width:100%;font-size:13.5px;}
.nav__search input::placeholder{color:var(--ink-3);}
.nav__burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;}

/* ---------- 面包屑 ---------- */
.crumb{padding:24px 0 0;font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb a{color:var(--ink-2);transition:color 180ms var(--ease);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C4CBC4;}

/* ---------- 文章头 ---------- */
.article-hero{padding-bottom:32px;}
.article-head{max-width:840px;padding-top:28px;}
.article-head h1{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:900;letter-spacing:-.02em;line-height:1.16;
  color:var(--brand);margin:18px 0 0;
}
.article-lead{margin-top:20px;font-size:17.5px;line-height:1.9;color:var(--ink-2);max-width:740px;}
.article-meta{
  margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13px;color:var(--ink-3);
  border-top:1px solid var(--line);padding-top:18px;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ---------- 正文布局 ---------- */
.article-main{padding:16px 0 104px;}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,3.6fr);gap:64px;align-items:start;}
.article-figure{margin:0 0 44px;}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-card);}
.article-figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-3);text-align:center;}

.article-body{max-width:740px;font-size:17px;line-height:1.95;color:var(--ink);}
.article-body p{margin:0 0 1.3em;}
.article-body h2{
  font-size:23px;font-weight:900;color:var(--brand);letter-spacing:-.02em;
  margin:2.4em 0 .9em;padding-left:14px;position:relative;line-height:1.35;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--accent);border-radius:2px;}
.article-body h3{font-size:19px;font-weight:700;color:var(--brand-deep);margin:1.9em 0 .7em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:2px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--accent);border-radius:2px;}
.article-body ol{counter-reset:li;padding-left:0;}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:10px;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.35em;
  width:21px;height:21px;border-radius:50%;background:var(--brand);color:#fff;
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:1.8em 0;padding:18px 22px;background:var(--light-green);
  border-left:3px solid var(--brand);border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--brand-deep);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{width:100%;border-radius:var(--radius-img);margin:1.6em 0 .6em;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,59,51,.35);transition:border-color 180ms var(--ease),color 180ms var(--ease);}
.article-body a:hover{border-color:var(--accent);}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap;}
.article-body thead th{background:var(--brand);color:#fff;font-weight:700;text-align:left;padding:12px 16px;border:1px solid var(--brand);}
.article-body tbody td{padding:12px 16px;border:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#F7F6F1;}
.article-body strong{font-weight:700;color:var(--brand-deep);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  background:#fff;padding:48px 28px;text-align:center;
}
.empty-state h2{font-size:20px;color:var(--brand);padding:0;margin:0 0 10px;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--ink-2);margin-bottom:20px;}

/* ---------- 标签 / 翻页 ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--line);}
.article-tags .label{font-size:13px;color:var(--ink-3);margin-right:4px;line-height:2.2;}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px;}
.article-nav a{
  display:block;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  transition:border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.article-nav a:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.article-nav .k{font-size:12px;color:var(--ink-3);letter-spacing:.08em;}
.article-nav .t{margin-top:8px;font-size:15.5px;font-weight:700;color:var(--brand);line-height:1.5;}
.article-nav .next{text-align:right;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 22px 20px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:15px;color:var(--brand);font-weight:900;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-card h3::before{content:"";width:14px;height:3px;background:var(--accent);border-radius:2px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{display:block;font-size:13.5px;color:var(--ink-2);padding:6px 10px;border-radius:8px;line-height:1.6;transition:background 180ms var(--ease),color 180ms var(--ease);border-left:2px solid transparent;}
.toc-list a:hover{background:var(--bg-alt);color:var(--brand);}
.toc-list a.is-active{color:var(--brand);font-weight:700;background:var(--bg-alt);border-left-color:var(--accent);}
.toc-list .toc-3 a{padding-left:22px;font-size:13px;color:var(--ink-3);}
.hot-list li{border-bottom:1px solid var(--line);}
.hot-list li:last-child{border-bottom:0;}
.hot-list a{display:flex;gap:12px;align-items:flex-start;padding:12px 0;font-size:14px;color:var(--ink-2);line-height:1.6;transition:color 180ms var(--ease),transform 180ms var(--ease);}
.hot-list a:hover{color:var(--brand);transform:translateX(2px);}
.hot-list .num{font-size:13px;font-weight:900;color:var(--accent);-webkit-text-stroke:.4px var(--brand);flex-shrink:0;width:18px;}
.side-card--dark{background:var(--brand);border-color:var(--brand);color:#DDE7E0;}
.side-card--dark h3{color:#fff;}
.side-card--dark p{font-size:13.5px;color:#C9D8D1;margin-bottom:16px;}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;margin-top:44px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.card__media{overflow:hidden;aspect-ratio:16/10;}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 320ms var(--ease);}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card__body h3{font-size:17.5px;color:var(--brand);line-height:1.5;}
.card__body p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.card__meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--ink-3);}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 104px;}
.cta-panel{
  background:var(--brand);border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(200,242,78,.16),transparent 68%);
}
.cta-panel h2{color:#fff;font-size:clamp(24px,3vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.25;}
.cta-panel p{color:#C9D8D1;font-size:15.5px;margin-top:16px;max-width:460px;}
.cta-form{background:#fff;border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:14px;position:relative;z-index:1;}
.cta-form label{font-size:13px;font-weight:700;color:var(--brand);display:block;margin-bottom:6px;}
.cta-form input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 14px;font-size:14.5px;background:#FBFAF6;outline:0;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,242,78,.45);background:#fff;}
.cta-form .hint{font-size:12px;color:var(--ink-3);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:#DDE7E0;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;padding-bottom:48px;}
.footer-brand p{font-size:14px;color:#B9CBC3;line-height:1.85;margin-top:14px;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:#C9D8D1;transition:color 180ms var(--ease),transform 180ms var(--ease);display:inline-block;}
.footer-col ul a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col .btn{margin-top:18px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#C9D8D1;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#9FB5AC;
}

/* ---------- 返回顶部 / 移动 CTA ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--brand);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms;z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-cta{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .article-layout{grid-template-columns:1fr;gap:44px;}
  .article-side{position:static;top:auto;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .cta-panel{grid-template-columns:1fr;padding:44px;}
}
@media (max-width:1024px){
  .nav{height:60px;gap:12px;}
  .nav__search{display:none;}
  .nav__link{padding:8px 10px;font-size:14px;}
  .nav__right .btn--sm{display:none;}
  .nav__burger{display:flex;}
  .nav__channels{
    position:fixed;top:60px;right:0;width:84%;height:calc(100vh - 60px);
    background:var(--bg);flex-direction:column;align-items:stretch;gap:6px;
    padding:26px 22px;transform:translateX(105%);
    transition:transform 320ms var(--ease);z-index:82;margin-left:0;
    box-shadow:-16px 0 40px rgba(15,59,51,.12);overflow-y:auto;
  }
  .nav__channels .nav__link{font-size:16px;font-weight:600;padding:14px 12px;border-radius:10px;}
  .nav__channels .nav__link.is-active::after{left:12px;right:auto;width:24px;}
  .site-header.is-open .nav__channels{transform:translateX(0);}
  .site-header.is-open::before{content:"";position:fixed;inset:0;background:rgba(8,37,31,.42);z-index:81;}
  .section{padding:80px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .article-main{padding:8px 0 64px;}
  .article-head h1{font-size:clamp(26px,7vw,34px);}
  .article-lead{font-size:16px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-nav{grid-template-columns:1fr;}
  .article-nav .next{text-align:left;}
  .related-grid{grid-template-columns:1fr;}
  .cta-wrap{padding-bottom:72px;}
  .cta-panel{padding:32px 24px;border-radius:20px;gap:32px;}
  .cta-form{padding:22px;}
  .footer-grid{padding-bottom:32px;}
  .to-top{right:16px;bottom:84px;}
  .mobile-cta{
    display:flex;position:fixed;left:16px;right:16px;bottom:16px;z-index:75;
    background:var(--accent);color:var(--brand-deep);font-weight:700;font-size:15px;
    height:50px;border-radius:12px;align-items:center;justify-content:center;
    box-shadow:0 10px 24px rgba(15,59,51,.22);
    transition:transform 240ms var(--ease),opacity 240ms var(--ease);
  }
  .mobile-cta.is-hidden{transform:translateY(120%);opacity:0;}
}
@media (max-width:520px){
  .article-meta{gap:8px 14px;}
  .footer-bottom{flex-direction:column;}
  .card__body{padding:18px 20px 22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#0F3B33;
  --brand-deep:#08251F;
  --accent:#C8F24E;
  --sage:#7A8B7F;
  --mint:#E4EDD9;
  --bg:#FBFAF6;
  --bg-alt:#F4F2EA;
  --ink:#141A18;
  --ink-2:#4A544E;
  --ink-3:#8A928C;
  --line:#E5E2D8;
  --line-2:#CFD6CE;
  --white:#FFFFFF;
  --r-btn:10px;
  --r-card:16px;
  --r-img:14px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,51,.05);
  --sh-2:0 12px 28px rgba(15,59,51,.09);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(251,250,246,0);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(251,250,246,.95);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
  backdrop-filter:saturate(150%) blur(8px);
}
.nav{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand__text{
  font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--brand-deep);
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
}
.brand__text em{
  font-style:normal;font-size:11px;font-weight:500;letter-spacing:.04em;
  background:var(--mint);color:var(--brand);
  padding:3px 9px;border-radius:var(--r-pill);
}
.nav__channels{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav__link{
  position:relative;
  padding:10px 12px;
  font-size:15px;color:var(--ink-2);
  border-radius:8px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav__link:hover{color:var(--brand-deep);background:rgba(15,59,51,.04);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--brand-deep);font-weight:700;}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav__search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav__search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,242,78,.45);}
.nav__search input{
  border:0;outline:none;background:transparent;width:100%;
  font-size:14px;color:var(--ink);
}
.nav__search input::placeholder{color:var(--ink-3);}
.nav__burger{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--white);
  align-items:center;justify-content:center;cursor:pointer;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  font-size:15px;font-weight:700;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn--primary{background:var(--accent);color:var(--brand-deep);}
.btn--primary:hover{background:#D4F76A;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,59,51,.16);}
.btn--ghost{background:transparent;color:var(--brand-deep);border-color:var(--line-2);}
.btn--ghost:hover{border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn--sm{padding:10px 16px;font-size:14px;}
.btn--block{width:100%;}
.btn--light{background:var(--white);color:var(--brand-deep);}
.btn--light:hover{background:#F1F5E8;transform:translateY(-1px);box-shadow:var(--sh-2);}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--mint);color:var(--brand);
  font-size:12px;font-weight:500;letter-spacing:.02em;
}
.badge--light{background:rgba(200,242,78,.18);color:var(--accent);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);
  color:#EDF3EE;font-size:14px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--accent);color:var(--brand-deep);border-color:var(--accent);}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(221,231,224,.75);
}
.breadcrumb a{transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span.sep{opacity:.5;}
.breadcrumb .current{color:#fff;}

/* ===== 分类页 Hero ===== */
.cat-hero{
  position:relative;
  margin-top:-72px;
  padding:150px 0 88px;
  color:#fff;
  overflow:hidden;
  background:var(--brand);
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 460px at 12% 18%,rgba(15,59,51,.92) 0%,rgba(15,59,51,.55) 55%,rgba(8,37,31,.92) 100%),
    linear-gradient(180deg,rgba(8,37,31,.86) 0%,rgba(15,59,51,.94) 100%);
}
.cat-hero__inner{position:relative;z-index:2;max-width:920px;}
.cat-hero h1{
  margin:20px 0 18px;
  font-size:clamp(34px,5.6vw,68px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.08;
}
.cat-hero__lead{
  font-size:17px;line-height:1.9;color:rgba(232,240,234,.88);
  max-width:700px;margin-bottom:28px;
}
.cat-hero__meta{
  display:flex;flex-wrap:wrap;gap:28px;
  margin-top:36px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
}
.cat-hero__meta div strong{
  display:block;font-size:26px;font-weight:900;color:var(--accent);letter-spacing:-.01em;
}
.cat-hero__meta div span{font-size:13px;color:rgba(221,231,224,.72);}

/* ===== 板块通用 ===== */
.section{padding:104px 0;}
.section--alt{background:var(--bg-alt);}
.section--tight{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:52px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:500;letter-spacing:.08em;
  color:var(--sage);text-transform:uppercase;
}
.sec-kicker::before{
  content:"";width:40px;height:3px;border-radius:2px;background:var(--accent);display:inline-block;
}
.sec-head h2{
  margin:14px 0 14px;
  font-size:clamp(26px,3.2vw,38px);
  font-weight:900;letter-spacing:-.015em;line-height:1.2;color:var(--brand-deep);
}
.sec-head p{font-size:16px;color:var(--ink-2);line-height:1.9;}

/* ===== 卡片矩阵（错位两列） ===== */
.card-matrix{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.m-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.m-card:nth-child(even){margin-top:36px;}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9D3C6;}
.m-card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--mint);}
.m-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.m-card:hover .m-card__media img{transform:scale(1.03);}
.m-card__body{padding:26px 28px 30px;}
.m-card__body h3{font-size:20px;font-weight:700;letter-spacing:-.01em;margin-bottom:10px;color:var(--brand-deep);}
.m-card__body p{font-size:16px;color:var(--ink-2);margin-bottom:16px;}
.m-card__body ul{display:grid;gap:10px;}
.m-card__body li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);
}
.m-card__body li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--accent);
}

/* ===== 对比表 ===== */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--white);
  box-shadow:var(--sh-1);
  -webkit-overflow-scrolling:touch;
}
.table-wrap::-webkit-scrollbar{height:8px;}
.table-wrap::-webkit-scrollbar-thumb{background:#D7DCD3;border-radius:8px;}
table.compare{min-width:820px;font-size:15px;}
table.compare th{
  background:var(--brand);color:#fff;
  text-align:left;padding:18px 20px;
  font-size:14px;font-weight:600;letter-spacing:.02em;
}
table.compare td{
  padding:18px 20px;border-top:1px solid var(--line);
  color:var(--ink-2);vertical-align:top;line-height:1.8;
}
table.compare tbody tr:nth-child(even){background:#F7F6F1;}
table.compare td:first-child{color:var(--brand-deep);font-weight:700;white-space:nowrap;}
.table-hint{
  display:flex;align-items:center;gap:8px;
  margin-top:14px;font-size:13px;color:var(--ink-3);
}

/* ===== 时间轴 ===== */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding-top:8px;}
.timeline::before{
  content:"";position:absolute;left:26px;right:26px;top:34px;height:2px;
  background:linear-gradient(90deg,var(--accent),rgba(15,59,51,.14));
  z-index:0;
}
.tl-item{position:relative;padding:0 22px 0 0;z-index:1;}
.tl-num{
  width:54px;height:54px;border-radius:50%;
  background:var(--white);border:2px solid var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:900;color:var(--brand);
  margin-bottom:20px;
}
.tl-item h3{font-size:19px;font-weight:700;color:var(--brand-deep);margin-bottom:8px;}
.tl-item p{font-size:15px;color:var(--ink-2);}
.tl-tag{
  display:inline-block;margin-bottom:10px;
  font-size:12px;color:var(--sage);letter-spacing:.08em;
}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
.faq-side h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:900;letter-spacing:-.015em;
  color:var(--brand-deep);line-height:1.22;margin:14px 0 12px;
}
.faq-side p{font-size:15px;color:var(--ink-2);}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  font-size:18px;font-weight:600;color:var(--brand-deep);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
  content:"";
  flex-shrink:0;
  width:18px;height:18px;
  background:
    linear-gradient(var(--brand),var(--brand)) center/18px 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 18px no-repeat;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);opacity:.55;}
.faq-item p{
  padding:0 0 24px;
  font-size:16px;color:var(--ink-2);
  animation:fadeUp .2s var(--ease);
}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ===== CTA 区 ===== */
.cta-band{
  background:var(--brand);
  color:#fff;
  border-radius:var(--r-lg);
  padding:56px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
  overflow:hidden;
  position:relative;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,242,78,.22) 0%,rgba(200,242,78,0) 70%);
}
.cta-band h2{
  font-size:clamp(26px,3vw,36px);font-weight:900;letter-spacing:-.015em;
  line-height:1.22;margin:16px 0 14px;position:relative;z-index:1;
}
.cta-band p{color:rgba(221,231,224,.86);font-size:16px;max-width:520px;position:relative;z-index:1;}
.cta-form{
  background:var(--white);color:var(--ink);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-2);
  position:relative;z-index:1;
}
.cta-form h3{font-size:17px;font-weight:700;color:var(--brand-deep);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--white);font-size:15px;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,242,78,.45);
}
.field input:disabled{background:#F1EFE7;}
.form-note{font-size:12px;color:var(--ink-3);margin-top:10px;line-height:1.7;}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand);color:#DDE7E0;padding:72px 0 28px;margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:40px;
}
.footer-brand p{font-size:14px;color:rgba(221,231,224,.82);margin-top:14px;max-width:320px;line-height:1.9;}
.footer-col h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.01em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;color:rgba(221,231,224,.84);
  display:inline-block;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col .btn{margin-top:18px;}
.footer-contact{display:grid;gap:10px;font-size:14px;color:rgba(221,231,224,.84);}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(221,231,224,.68);
}

/* ===== 移动抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(8,37,31,.5);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;
  width:84%;max-width:360px;
  background:var(--bg);
  padding:22px;
  display:flex;flex-direction:column;gap:20px;
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:none;}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__close{
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--white);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer__search{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 12px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-btn);
}
.drawer__search input{border:0;outline:none;background:transparent;width:100%;font-size:15px;}
.drawer__links{display:grid;gap:4px;border-top:1px solid var(--line);padding-top:14px;}
.drawer__links a{
  padding:14px 12px;border-radius:var(--r-btn);font-size:16px;color:var(--ink-2);
}
.drawer__links a.is-active{background:var(--mint);color:var(--brand-deep);font-weight:700;}
.drawer__cta{display:grid;gap:10px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:80;
  width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:var(--accent);
  border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--brand-deep);}

/* ===== 入场动效 ===== */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ===== 响应式 ===== */
@media (max-width:1100px){
  .nav__search{width:180px;}
  .nav__channels{margin-left:0;}
}
@media (max-width:1024px){
  .section{padding:80px 0;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-grid{grid-template-columns:2fr 1fr;gap:32px;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:36px 0;}
  .timeline::before{display:none;}
  .card-matrix{grid-template-columns:1fr;gap:24px;}
  .m-card:nth-child(even){margin-top:0;}
}
@media (max-width:860px){
  .nav__channels,.nav__search,.nav__right .btn{display:none;}
  .nav__burger{display:flex;}
  .nav{min-height:60px;}
  .cat-hero{margin-top:-60px;padding:120px 0 64px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .sec-head{margin-bottom:34px;}
  .m-card__body{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .timeline{grid-template-columns:1fr;gap:26px;}
  .tl-item{padding-right:0;padding-left:0;}
  .cta-band{padding:28px;border-radius:18px;}
  .cta-form{padding:22px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  body{font-size:16px;}
  .cat-hero h1{font-size:32px;}
  .cat-hero__meta{gap:18px;}
  .cat-hero__meta div strong{font-size:22px;}
  .cta-form input,.field select{height:46px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}