/* roulang page: index */
:root{
  --ink-green:#0B2B23;
  --field-green:#1B7A5A;
  --mint:#A8D9C6;
  --orange:#E8542B;
  --orange-dark:#C63F17;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#FBF9F5;
  --text:#16211D;
  --muted:#5C6B64;
  --border:#E2DED4;
  --img-bg:#EDEFE9;
  --dark-text:#F2EFE9;
  --dark-muted:rgba(242,239,233,.68);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow:0 1px 2px rgba(11,43,35,.06),0 12px 32px -12px rgba(11,43,35,.14);
  --shadow-hover:0 18px 40px -16px rgba(11,43,35,.2);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#E8542B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#16211D;
  --bs-link-color:#1B7A5A;
  --bs-link-hover-color:#E8542B;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:17px;line-height:1.9;color:var(--text);background:var(--bg);
  font-variant-numeric:tabular-nums;
  padding-bottom:0;
}
img{max-width:100%;display:block;background:var(--img-bg)}
a{color:var(--field-green);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--orange)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink-green)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(232,84,43,.28);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.container{max-width:1320px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-green);color:var(--dark-text);font-size:13px;letter-spacing:.02em}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:38px}
.topbar__domain{color:var(--dark-text);opacity:.86;font-weight:600;letter-spacing:.06em}
.topbar__note{color:var(--dark-muted);flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__action{display:inline-flex;align-items:center;gap:6px;color:var(--dark-text);white-space:nowrap}
.topbar__action span{transition:transform .18s var(--ease)}
.topbar__action:hover{color:var(--mint)}
.topbar__action:hover span{transform:translateX(4px)}
@media(max-width:767.98px){
  .topbar__inner{height:34px}
  .topbar__note{display:none}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .18s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(11,43,35,.75)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px;transition:height .18s var(--ease)}
.site-header.is-scrolled .nav__inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink-green);letter-spacing:-.01em}
.brand:hover{color:var(--ink-green)}
.brand__mark{width:28px;height:28px;border-radius:8px;background:var(--orange);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand__mark::after{content:"";width:11px;height:11px;border:2px solid #fff;border-radius:3px}
.nav__menu{display:flex;align-items:center;gap:32px}
.nav__link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--text)}
.nav__link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--orange);transition:width .24s var(--ease)}
.nav__link:hover{color:var(--field-green)}
.nav__link:hover::after{width:20px}
.nav__link.is-active{color:var(--ink-green);font-weight:700}
.nav__link.is-active::after{width:20px}
.nav__actions{display:flex;align-items:center;gap:18px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--field-green)}
.text-link span{transition:transform .18s var(--ease)}
.text-link:hover span{transform:translateX(4px)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle i{display:block;width:20px;height:1.6px;background:var(--ink-green);transition:transform .18s var(--ease),opacity .18s var(--ease)}
.nav-toggle.is-open i:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.nav-toggle.is-open i:nth-child(2){opacity:0}
.nav-toggle.is-open i:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
@media(max-width:991.98px){
  .nav__menu{
    position:fixed;left:0;right:0;top:0;bottom:0;
    background:var(--bg);flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;z-index:1035;
    transform:translateY(-10px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    overflow-y:auto;
  }
  .nav__menu.is-open{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav__menu li{border-bottom:1px solid var(--border)}
  .nav__link{display:block;padding:20px 0;font-size:20px;font-weight:700;color:var(--ink-green)}
  .nav__link::after{display:none}
  .nav__actions{display:none}
  .nav-toggle{display:flex;position:relative;z-index:1040}
  .nav__menu .nav-mobile-cta{border-bottom:0;margin-top:28px}
  .nav__menu .nav-mobile-cta .btn{width:100%}
}
@media(min-width:992px){.nav-mobile-cta{display:none}}

/* ---------- 按钮 ---------- */
.btn.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn.rl-btn--primary{background-color:var(--orange);border-color:var(--orange);color:#F2EFE9}
.btn.rl-btn--primary:hover{background-color:var(--orange-dark);border-color:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(232,84,43,.62)}
.btn.rl-btn--primary:active{transform:translateY(0)}
.btn.rl-btn--ghost{background-color:transparent;border-color:var(--field-green);color:var(--ink-green)}
.btn.rl-btn--ghost:hover{background-color:#E5F2EB;border-color:var(--field-green);color:var(--ink-green);transform:translateY(-1px)}
.btn.rl-btn--sm{height:44px;padding:0 20px;font-size:15px}

/* ---------- 通用排版 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.08em;font-weight:700;color:var(--orange);text-transform:uppercase}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--orange)}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700}
.lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:62ch}
.hairline{height:1px;background:var(--border);border:0;margin:0}
@media(max-width:991.98px){.section{padding:72px 0}.section--tight{padding:56px 0}}
@media(max-width:575.98px){.section{padding:56px 0}.section--tight{padding:44px 0}.section-head{flex-direction:column;align-items:flex-start;gap:16px}}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    repeating-linear-gradient(115deg,rgba(11,43,35,.035) 0 1px,transparent 1px 34px),
    var(--bg);
  padding:88px 0 96px;
}
.hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.15;font-weight:800;margin:20px 0 22px}
.hero__sub{font-size:18px;line-height:1.8;color:var(--muted);max-width:34em}
.hero__cta{display:flex;flex-wrap:wrap;gap:16px;margin:34px 0 30px}
.hero__trust{display:flex;flex-wrap:wrap;align-items:center;gap:0}
.hero__trust li{position:relative;display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:0 18px}
.hero__trust li:first-child{padding-left:0}
.hero__trust li+li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:14px;background:var(--border)}
.hero__trust b{color:var(--field-green);font-size:15px;line-height:1}
.hero__media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);background:var(--img-bg)}
.hero__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(190deg,rgba(11,43,35,0) 32%,rgba(11,43,35,.42) 100%)}
.hero__pill{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(242,239,233,.94);color:var(--ink-green);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  padding:9px 16px;border-radius:999px;
}
.hero__pill::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange)}
@media(max-width:991.98px){
  .hero{padding:56px 0 64px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__media img{aspect-ratio:16/11}
}

/* ---------- 卖点（4:8 非对称） ---------- */
.points{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.points__grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.points__aside{position:sticky;top:104px}
.points__index{display:block;font-size:15px;font-weight:700;letter-spacing:.1em;color:var(--orange);margin-bottom:14px}
.points__aside h2{font-size:clamp(22px,2.4vw,30px);padding-left:16px;border-left:3px solid var(--field-green)}
.points__aside p{margin-top:18px;color:var(--muted);font-size:15px;line-height:1.85}
.points__list li{
  display:grid;grid-template-columns:76px 1fr;gap:8px;align-items:start;
  padding:30px 0;border-bottom:1px solid var(--border);
  transition:transform .18s var(--ease);
}
.points__list li:first-child{padding-top:0}
.points__list li:hover{transform:translateX(4px)}
.points__list li:hover .points__num{color:var(--orange)}
.points__num{font-size:44px;line-height:1;font-weight:800;color:var(--mint);letter-spacing:-.02em;transition:color .18s var(--ease)}
.points__list h3{font-size:20px;font-weight:700;margin-bottom:8px}
.points__list p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}
@media(max-width:991.98px){
  .points__grid{grid-template-columns:1fr;gap:32px}
  .points__aside{position:static}
}

/* ---------- 场景演示 6:6 ---------- */
.scene__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.scene__media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow)}
.scene__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene__item{display:grid;grid-template-columns:34px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--border)}
.scene__item:first-child{padding-top:0}
.scene__item:last-child{border-bottom:0;padding-bottom:0}
.scene__dot{width:34px;height:34px;border-radius:10px;background:#E5F2EB;color:var(--field-green);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}
.scene__item h3{font-size:18px;font-weight:700;margin-bottom:6px}
.scene__item p{margin:0;font-size:15px;line-height:1.8;color:var(--muted)}
@media(max-width:991.98px){.scene__grid{grid-template-columns:1fr;gap:32px}}

/* ---------- 内容列表（CMS） ---------- */
.news{background:var(--surface-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.news-card__link{display:block;height:100%;color:inherit}
.news-card__media{position:relative;overflow:hidden;background:var(--img-bg)}
.news-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease)}
.news-card:hover .news-card__media img{transform:scale(1.03)}
.news-card__badge{
  position:absolute;left:14px;top:14px;
  background:rgba(11,43,35,.82);color:#F2EFE9;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 10px;border-radius:var(--r-badge);
}
.news-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px}
.news-card__title{font-size:18px;line-height:1.5;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s var(--ease)}
.news-card:hover .news-card__title{color:var(--orange)}
.news-card__excerpt{font-size:15px;line-height:1.8;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);letter-spacing:.04em;border-top:1px solid var(--border);padding-top:14px;margin-top:auto}
.news-card__arrow{color:var(--orange);font-weight:700;transition:transform .18s var(--ease)}
.news-card:hover .news-card__arrow{transform:translateX(4px)}
.news-card--lead{grid-column:span 3;display:grid;grid-template-columns:6fr 6fr}
.news-card--lead .news-card__media img{aspect-ratio:16/9;height:100%}
.news-card--lead .news-card__body{padding:36px 36px 34px;gap:16px;justify-content:center}
.news-card--lead .news-card__title{font-size:24px;font-weight:800}
.news-card--lead .news-card__excerpt{font-size:16px;-webkit-line-clamp:3}
.news-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--r-card);text-align:center;padding:32px;
}
.news-empty__icon{width:46px;height:46px;border-radius:50%;background:#E5F2EB;color:var(--field-green);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.news-empty p{margin:0;color:var(--muted);font-size:15px}
@media(max-width:991.98px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--lead{grid-column:span 2;grid-template-columns:1fr}
  .news-card--lead .news-card__body{padding:24px}
}
@media(max-width:575.98px){
  .news-grid{grid-template-columns:1fr}
  .news-card--lead{grid-column:span 1}
}

/* ---------- 社会认同（深色通栏） ---------- */
.trust{background:var(--ink-green);color:var(--dark-text);padding:96px 0}
.trust h2{color:var(--dark-text)}
.trust .eyebrow{color:var(--mint)}
.trust .eyebrow::before{background:var(--orange)}
.trust .lead{color:var(--dark-muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:44px 0 56px;border-top:1px solid rgba(242,239,233,.16);border-bottom:1px solid rgba(242,239,233,.16)}
.stats li{padding:28px 24px;border-left:1px solid rgba(242,239,233,.16)}
.stats li:first-child{border-left:0;padding-left:0}
.stats__num{display:block;font-size:40px;line-height:1.1;font-weight:800;color:var(--mint);letter-spacing:-.02em}
.stats__label{display:block;margin-top:8px;font-size:12px;letter-spacing:.08em;color:var(--dark-muted)}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{background:rgba(242,239,233,.06);border:1px solid rgba(242,239,233,.14);border-radius:var(--r-card);padding:28px;margin:0;box-shadow:0 18px 40px -26px rgba(0,0,0,.6)}
.quote-card blockquote{margin:0;font-size:15px;line-height:1.9;color:var(--dark-text)}
.quote-card blockquote::before{content:"“";display:block;font-size:34px;line-height:1;color:var(--orange);margin-bottom:10px}
.quote-card figcaption{margin-top:18px;padding-top:16px;border-top:1px solid rgba(242,239,233,.14);font-size:13px;color:var(--dark-muted);letter-spacing:.04em}
.quote-card figcaption b{display:block;color:var(--dark-text);font-size:15px;font-weight:700;letter-spacing:0}
@media(max-width:991.98px){
  .trust{padding:72px 0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stats li{padding:22px 18px}
  .stats li:nth-child(odd){border-left:0;padding-left:0}
  .stats li:nth-child(n+3){border-top:1px solid rgba(242,239,233,.16)}
  .quote-grid{grid-template-columns:1fr}
}

/* ---------- FAQ ---------- */
.faq__grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq__aside h2{margin-bottom:18px}
.faq__aside p{font-size:15px;line-height:1.85;color:var(--muted)}
.rl-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--border);border-radius:0}
.rl-accordion .accordion-item:first-of-type{border-top:1px solid var(--border)}
.rl-accordion .accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:700;line-height:1.6;
  padding:24px 48px 24px 20px;border-radius:0;box-shadow:none;
}
.rl-accordion .accordion-button:not(.collapsed){background:var(--surface-alt);color:var(--ink-green);box-shadow:none}
.rl-accordion .accordion-button:focus{box-shadow:none;outline:3px solid rgba(232,84,43,.28);outline-offset:-3px}
.rl-accordion .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:300;color:var(--muted);
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.rl-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);color:var(--orange)}
.rl-accordion .accordion-body{padding:4px 48px 26px 20px;font-size:15px;line-height:1.85;color:var(--muted);background:var(--surface-alt)}
@media(max-width:991.98px){.faq__grid{grid-template-columns:1fr;gap:28px}}

/* ---------- 底部转化通栏 ---------- */
.final-cta{background:var(--ink-green);color:var(--dark-text);padding:80px 0}
.final-cta__inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.final-cta h2{color:var(--dark-text);font-size:clamp(22px,2.6vw,32px);max-width:22em}
.final-cta p{color:var(--dark-muted);font-size:15px;margin:12px 0 0}
.final-cta__actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.final-cta .text-link{color:var(--mint)}
.final-cta .text-link:hover{color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-green);color:var(--dark-muted);font-size:14px;line-height:1.8;padding:64px 0 0}
.site-footer__cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;border-top:1px solid rgba(242,239,233,.14);padding-top:48px}
.site-footer .brand{color:var(--dark-text);font-size:18px;margin-bottom:16px}
.site-footer__desc{color:var(--dark-muted);max-width:30em}
.site-footer h4{color:var(--dark-text);font-size:15px;font-weight:700;margin:0 0 16px;letter-spacing:.02em}
.site-footer ul li{margin-bottom:10px}
.site-footer a{color:var(--dark-muted)}
.site-footer a:hover{color:var(--mint)}
.site-footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:48px;padding:22px 0;border-top:1px solid rgba(242,239,233,.14);flex-wrap:wrap}
.to-top{width:40px;height:40px;border-radius:50%;border:1px solid rgba(242,239,233,.3);background:transparent;color:var(--dark-text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .18s var(--ease),transform .18s var(--ease)}
.to-top:hover{background:rgba(242,239,233,.1);transform:translateY(-2px)}
@media(max-width:991.98px){.site-footer__cols{grid-template-columns:1fr 1fr}}
@media(max-width:575.98px){.site-footer__cols{grid-template-columns:1fr;gap:28px}}

/* ---------- 固定转化条 ---------- */
.sticky-cta{
  position:fixed;z-index:1040;left:0;right:0;bottom:0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(255,255,255,.98);border-top:1px solid var(--border);
  box-shadow:0 -12px 30px -22px rgba(11,43,35,.7);
  padding:10px 20px;min-height:64px;
}
.sticky-cta__text{font-size:14px;font-weight:700;color:var(--ink-green)}
.sticky-cta__close{display:none}
.sticky-cta .btn{height:44px;padding:0 22px;font-size:15px}
body{padding-bottom:80px}
@media(min-width:992px){
  body{padding-bottom:0}
  .sticky-cta{
    left:auto;right:28px;bottom:28px;width:320px;min-height:0;
    border:1px solid var(--border);border-radius:14px;
    padding:16px;
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  }
  .sticky-cta.is-visible{opacity:1;visibility:visible;transform:none}
  .sticky-cta__close{
    display:inline-flex;align-items:center;justify-content:center;
    position:absolute;right:8px;top:8px;width:26px;height:26px;
    border:0;background:transparent;color:var(--muted);font-size:18px;line-height:1;cursor:pointer;border-radius:6px;
  }
  .sticky-cta__close:hover{background:var(--surface-alt);color:var(--orange)}
  .sticky-cta__row{display:flex;flex-direction:column;gap:12px}
  .sticky-cta__text{font-size:15px}
  .sticky-cta .btn{width:100%}
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{transform:none;transition:opacity .3s linear}
  .news-card:hover .news-card__media img{transform:none}
  .btn.rl-btn:hover,.points__list li:hover,.news-card:hover,.to-top:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --rl-ink:#0B2B23;
  --rl-green:#1B7A5A;
  --rl-mint:#A8D9C6;
  --rl-orange:#E8542B;
  --rl-orange-dark:#C63F17;
  --rl-bg:#F7F5F0;
  --rl-surface:#FFFFFF;
  --rl-soft:#FBF9F5;
  --rl-text:#16211D;
  --rl-muted:#5C6B64;
  --rl-border:#E2DED4;
  --rl-img:#EDEFE9;
  --rl-light:#F2EFE9;
  --rl-radius:16px;
  --rl-radius-sm:10px;
  --rl-shadow:0 1px 2px rgba(11,43,35,.06),0 12px 32px -12px rgba(11,43,35,.14);
  --rl-shadow-hover:0 18px 40px -16px rgba(11,43,35,.2);
  --rl-ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#1B7A5A;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#16211D;
  --bs-link-color:#1B7A5A;
  --bs-link-hover-color:#E8542B;
  --bs-border-color:#E2DED4;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Arial,sans-serif;
  font-size:17px;line-height:1.9;color:var(--rl-text);background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:80px;
}
img{max-width:100%;display:block}
a{color:var(--rl-green);text-decoration:none;transition:color .18s var(--rl-ease)}
a:hover{color:var(--rl-orange)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--rl-text)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(232,84,43,.35);outline-offset:2px;border-radius:6px}

.container{
  width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;
}
@media (min-width:1400px){.container{max-width:1320px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--rl-ink);color:var(--rl-light);font-size:13px;height:38px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar__domain{font-variant-numeric:tabular-nums;letter-spacing:.04em;color:rgba(242,239,233,.72)}
.topbar__tip{color:rgba(242,239,233,.68)}
.topbar__link{color:var(--rl-light);display:inline-flex;align-items:center;gap:6px;position:relative}
.topbar__link span{transition:transform .18s var(--rl-ease)}
.topbar__link:hover{color:var(--rl-mint)}
.topbar__link:hover span{transform:translateX(4px)}
.topbar__link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--rl-mint);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--rl-ease);
}
.topbar__link:hover::after{transform:scaleX(1)}
@media (max-width:767.98px){
  .topbar__tip{display:none}
  .topbar,.topbar__inner{height:34px}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(247,245,240,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s var(--rl-ease),border-color .18s var(--rl-ease),background .18s var(--rl-ease);
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--rl-border);box-shadow:0 6px 24px -18px rgba(11,43,35,.5)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .18s var(--rl-ease)}
.site-header.is-scrolled .nav__inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--rl-ink);letter-spacing:-.01em}
.brand:hover{color:var(--rl-ink)}
.brand__mark{width:28px;height:28px;border-radius:6px;background:var(--rl-orange);flex:0 0 28px;position:relative}
.brand__mark::after{
  content:"";position:absolute;left:6px;right:6px;top:50%;height:2px;transform:translateY(-50%);
  background:var(--rl-mint);border-radius:2px;
}
.nav__menu{display:flex;align-items:center;gap:32px}
.nav__link{
  position:relative;font-size:15px;color:var(--rl-text);padding:6px 0;font-weight:500;white-space:nowrap;
}
.nav__link::after{
  content:"";position:absolute;left:0;bottom:0;width:20px;height:2px;background:var(--rl-orange);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--rl-ease);
}
.nav__link:hover{color:var(--rl-green)}
.nav__link.is-active{color:var(--rl-ink);font-weight:700}
.nav__link.is-active::after,.nav__link:hover::after{transform:scaleX(1)}
.nav__actions{display:flex;align-items:center;gap:20px}
.nav-mobile-cta{display:none}

/* ---------- 按钮 ---------- */
.btn.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--rl-radius-sm);font-weight:600;font-size:16px;
  height:48px;padding:0 28px;border:1.5px solid transparent;
  transition:transform .18s var(--rl-ease),box-shadow .18s var(--rl-ease),background-color .18s var(--rl-ease),color .18s var(--rl-ease),border-color .18s var(--rl-ease);
}
.rl-btn--primary{background:var(--rl-orange);color:#FFF7F2}
.rl-btn--primary:hover,.rl-btn--primary:focus{background:var(--rl-orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(198,63,23,.75)}
.rl-btn--outline{background:transparent;border-color:var(--rl-green);color:var(--rl-ink)}
.rl-btn--outline:hover{background:rgba(168,217,198,.35);color:var(--rl-ink);border-color:var(--rl-green)}
.rl-btn--sm{height:42px;padding:0 20px;font-size:15px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--rl-ink);position:relative}
.text-link span{transition:transform .18s var(--rl-ease)}
.text-link:hover{color:var(--rl-orange)}
.text-link:hover span{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--rl-border);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;padding:0;
}
.nav-toggle i{display:block;width:20px;height:1.5px;background:var(--rl-ink);border-radius:2px;transition:transform .2s var(--rl-ease),opacity .2s var(--rl-ease)}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

@media (max-width:991.98px){
  .nav-toggle{display:flex}
  .nav__actions .text-link{display:none}
  .nav__actions .rl-btn--sm{display:none}
  .nav__menu{
    position:fixed;left:0;right:0;top:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:96px 24px 32px;transform:translateX(100%);transition:transform .28s var(--rl-ease);
    opacity:0;pointer-events:none;z-index:1040;overflow-y:auto;
  }
  .nav__menu.is-open{transform:translateX(0);opacity:1;pointer-events:auto}
  .nav__menu li{border-bottom:1px solid var(--rl-border)}
  .nav__link{display:block;font-size:20px;font-weight:600;padding:18px 0}
  .nav__link::after{display:none}
  .nav-mobile-cta{display:block;border-bottom:0;margin-top:28px}
  .nav-mobile-cta .btn{width:100%}
}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--rl-muted);letter-spacing:.02em;margin-bottom:18px}
.crumb a{color:var(--rl-muted)}
.crumb a:hover{color:var(--rl-orange)}
.crumb span[aria-current]{color:var(--rl-text)}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  background:
    linear-gradient(180deg,rgba(11,43,35,.035),rgba(11,43,35,0) 60%),
    repeating-linear-gradient(115deg,rgba(11,43,35,.035) 0 1px,transparent 1px 90px),
    var(--rl-bg);
  border-bottom:1px solid var(--rl-border);
  padding:56px 0 60px;
}
.cat-hero__inner{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:700;color:var(--rl-orange);
  letter-spacing:.08em;margin-bottom:20px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--rl-orange);display:block}
.cat-hero h1{font-size:clamp(30px,4.2vw,44px);line-height:1.18;font-weight:800;margin-bottom:20px}
.cat-hero__sub{font-size:17px;color:var(--rl-muted);max-width:520px;margin-bottom:28px}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.cat-hero__media{position:relative;border-radius:20px;overflow:hidden;background:var(--rl-img);box-shadow:var(--rl-shadow)}
.cat-hero__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.cat-hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(11,43,35,.22),rgba(11,43,35,0) 55%);
}
@media (max-width:991.98px){
  .cat-hero{padding:40px 0 44px}
  .cat-hero__inner{grid-template-columns:1fr;gap:32px}
  .cat-hero__media{order:-1}
}
@media (max-width:575.98px){
  .cat-hero__actions .btn{width:100%}
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--soft{background:var(--rl-soft);border-top:1px solid var(--rl-border);border-bottom:1px solid var(--rl-border)}
.section__head{max-width:760px;margin-bottom:40px}
.section__head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;margin-bottom:16px}
.section__head p{color:var(--rl-muted);font-size:16px}
.rule-title{position:relative;padding-left:16px}
.rule-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--rl-orange);border-radius:2px}
@media (max-width:991.98px){.section{padding:72px 0}}
@media (max-width:575.98px){.section{padding:56px 0}}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:80px}
.split__media{border-radius:var(--rl-radius);overflow:hidden;background:var(--rl-img);box-shadow:var(--rl-shadow)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s var(--rl-ease)}
.split__media:hover img{transform:scale(1.03)}
.split__index{font-size:13px;font-weight:700;color:var(--rl-green);letter-spacing:.08em;margin-bottom:14px}
.split h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.35;margin-bottom:18px}
.split p{color:var(--rl-muted);font-size:16px}
.split__list{margin-top:22px;border-top:1px solid var(--rl-border)}
.split__list li{
  display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--rl-border);
  font-size:15px;color:var(--rl-text);
}
.split__list li::before{content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--rl-mint);margin-top:10px}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:28px}
  .split + .split{margin-top:56px}
  .split--reverse .split__media{order:-1}
}

/* ---------- 编号要点列表 ---------- */
.points{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;border-top:1px solid var(--rl-border)}
.point{
  display:grid;grid-template-columns:72px 1fr;gap:20px;padding:32px 0;border-bottom:1px solid var(--rl-border);
  transition:transform .18s var(--rl-ease);
}
.point:hover{transform:translateX(4px)}
.point__num{
  font-size:44px;line-height:1;font-weight:800;color:var(--rl-mint);font-variant-numeric:tabular-nums;
  transition:color .18s var(--rl-ease);
}
.point:hover .point__num{color:var(--rl-orange)}
.point h3{font-size:20px;font-weight:700;margin-bottom:10px}
.point p{font-size:15px;color:var(--rl-muted);margin:0}
@media (max-width:991.98px){.points{grid-template-columns:1fr;gap:0}}
@media (max-width:575.98px){
  .point{grid-template-columns:1fr;gap:10px;padding:26px 0}
  .point__num{font-size:34px}
}

/* ---------- 信息卡 ---------- */
.info-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.info-card{
  background:var(--rl-surface);border:1px solid var(--rl-border);border-radius:var(--rl-radius);
  padding:28px 26px;box-shadow:var(--rl-shadow);transition:transform .18s var(--rl-ease),box-shadow .18s var(--rl-ease);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover)}
.info-card__tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--rl-green);
  background:rgba(168,217,198,.3);border-radius:6px;padding:4px 10px;margin-bottom:18px;
}
.info-card__value{font-size:34px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--rl-ink)}
.info-card__unit{font-size:14px;color:var(--rl-muted);margin-left:6px;font-weight:500}
.info-card h3{font-size:19px;font-weight:700;margin:14px 0 10px}
.info-card p{font-size:15px;color:var(--rl-muted);margin:0}
@media (max-width:991.98px){.info-cards{grid-template-columns:1fr 1fr}}

/* ---------- 深色数据/凭证区块 ---------- */
.dark-band{background:var(--rl-ink);color:var(--rl-light);padding:88px 0}
.dark-band .section__head h2,.dark-band h3{color:var(--rl-light)}
.dark-band .section__head p{color:rgba(242,239,233,.68)}
.dark-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.dark-item{padding:0 28px;border-left:1px solid rgba(242,239,233,.16)}
.dark-item:first-child{padding-left:0;border-left:0}
.dark-item__num{font-size:40px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--rl-light)}
.dark-item__label{font-size:12px;letter-spacing:.08em;color:rgba(242,239,233,.68);margin-top:10px}
.dark-item__desc{font-size:14px;color:rgba(242,239,233,.6);margin-top:12px;line-height:1.7}
@media (max-width:991.98px){
  .dark-band{padding:72px 0}
  .dark-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .dark-item:nth-child(odd){padding-left:0;border-left:0}
}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--rl-border)}
.accordion-button{
  background:transparent;color:var(--rl-text);font-size:17px;font-weight:700;padding:24px 48px 24px 0;
  box-shadow:none!important;border-radius:0!important;
}
.accordion-button:not(.collapsed){color:var(--rl-ink);background:var(--rl-soft)}
.accordion-button:hover{color:var(--rl-orange)}
.accordion-button::after{
  content:"+";background-image:none!important;font-size:22px;font-weight:400;line-height:1;
  width:auto;height:auto;transform:none;color:var(--rl-muted);position:absolute;right:6px;top:50%;margin-top:-12px;
  transition:transform .2s var(--rl-ease),color .2s var(--rl-ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--rl-orange)}
.accordion-body{padding:0 0 26px;font-size:15px;line-height:1.85;color:var(--rl-muted);background:var(--rl-soft)}
.accordion-body strong{color:var(--rl-text)}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:var(--rl-ink);color:var(--rl-light);padding:72px 0}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{color:var(--rl-light);font-size:clamp(22px,2.6vw,32px);font-weight:700;margin-bottom:12px}
.cta-band p{color:rgba(242,239,233,.68);font-size:16px;margin:0;max-width:620px}
.cta-band .rl-btn--ghost{background:transparent;border:1.5px solid rgba(242,239,233,.4);color:var(--rl-light)}
.cta-band .rl-btn--ghost:hover{border-color:var(--rl-mint);color:var(--rl-mint);background:transparent}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--rl-ink);color:var(--rl-light);padding:72px 0 28px;margin-top:0}
.site-footer .brand{color:var(--rl-light);margin-bottom:18px}
.site-footer__cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-top:36px;border-top:1px solid rgba(242,239,233,.16)}
.site-footer__desc{font-size:14px;line-height:1.8;color:rgba(242,239,233,.68);max-width:320px}
.site-footer h4{font-size:14px;letter-spacing:.06em;color:rgba(242,239,233,.72);font-weight:700;margin-bottom:16px}
.site-footer ul li{font-size:14px;line-height:1.9;color:rgba(242,239,233,.68)}
.site-footer ul li a{color:rgba(242,239,233,.68)}
.site-footer ul li a:hover{color:var(--rl-mint)}
.site-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid rgba(242,239,233,.16);margin-top:44px;padding-top:22px;font-size:13px;color:rgba(242,239,233,.6);
}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(242,239,233,.32);background:transparent;
  color:var(--rl-light);font-size:16px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:background-color .18s var(--rl-ease),border-color .18s var(--rl-ease),transform .18s var(--rl-ease);
}
.to-top:hover{background:rgba(168,217,198,.16);border-color:var(--rl-mint);transform:translateY(-1px)}
@media (max-width:991.98px){
  .site-footer__cols{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .site-footer__cols{grid-template-columns:1fr}
  .site-footer{padding:56px 0 24px}
}

/* ---------- 固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1035;display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:64px;padding:0 20px;background:rgba(255,255,255,.98);border-top:1px solid var(--rl-border);
  box-shadow:0 -8px 24px -16px rgba(11,43,35,.45);
}
.sticky-cta__text{font-size:14px;color:var(--rl-text);font-weight:600}
.sticky-cta .rl-btn{height:44px;padding:0 20px;font-size:15px}
.float-cta{
  position:fixed;right:28px;bottom:28px;width:320px;z-index:1035;background:#fff;border:1px solid var(--rl-border);
  border-radius:14px;box-shadow:var(--rl-shadow-hover);padding:18px 18px 16px;display:flex;gap:14px;align-items:flex-start;
  opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .28s var(--rl-ease),transform .28s var(--rl-ease);
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta__body{flex:1}
.float-cta__title{font-size:15px;font-weight:700;margin-bottom:6px}
.float-cta__desc{font-size:13px;color:var(--rl-muted);line-height:1.7;margin-bottom:12px}
.float-cta__close{
  border:0;background:transparent;color:var(--rl-muted);font-size:18px;line-height:1;cursor:pointer;padding:2px 4px;
  transition:color .18s var(--rl-ease);
}
.float-cta__close:hover{color:var(--rl-orange)}
@media (max-width:991.98px){
  .float-cta{display:none}
}
@media (min-width:992px){
  .sticky-cta{display:none}
  body{padding-bottom:0}
}

/* ---------- 入场动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .42s var(--rl-ease),transform .42s var(--rl-ease)}
[data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation:none!important}
  [data-reveal]{transform:none}
  .split__media:hover img{transform:none}
  .info-card:hover,.point:hover,.to-top:hover,.rl-btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --ink:#0B2B23;
  --ink-soft:#123B30;
  --green:#1B7A5A;
  --mint:#A8D9C6;
  --orange:#E8542B;
  --orange-dark:#C63F17;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#FBF9F5;
  --text:#16211D;
  --muted:#5C6B64;
  --border:#E2DED4;
  --img-bg:#EDEFE9;
  --lt:#F2EFE9;
  --lt-dim:rgba(242,239,233,.68);
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow:0 1px 2px rgba(11,43,35,.06), 0 12px 32px -12px rgba(11,43,35,.14);
  --shadow-hover:0 18px 40px -16px rgba(11,43,35,.2);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#1B7A5A;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#16211D;
  --bs-link-color:#1B7A5A;
  --bs-link-hover-color:#E8542B;
  --bs-border-color:#E2DED4;
  --bs-border-radius:10px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(232,84,43,.32);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}
@media (max-width:575px){.container{padding:0 20px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:var(--lt);font-size:13px;letter-spacing:.05em}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px}
.topbar__domain{color:var(--lt-dim);font-variant-numeric:tabular-nums}
.topbar__hint{color:var(--mint);letter-spacing:.08em}
.topbar__link{display:inline-flex;align-items:center;gap:6px;color:var(--lt);position:relative;padding-bottom:2px}
.topbar__link::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--mint);transition:width 240ms var(--ease)}
.topbar__link:hover{color:var(--mint)}
.topbar__link:hover::after{width:100%}
.topbar__link span{transition:transform 180ms var(--ease)}
.topbar__link:hover span{transform:translateX(4px)}
@media (max-width:991px){.topbar__hint{display:none}}
@media (max-width:575px){
  .topbar__inner{height:34px;font-size:12px}
  .topbar__domain{letter-spacing:0}
}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,240,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 28px -20px rgba(11,43,35,.55)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px;transition:height 240ms var(--ease)}
.site-header.is-scrolled .nav__inner{height:60px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--ink)}
.brand__mark{
  position:relative;
  width:28px;height:28px;
  flex:0 0 auto;
  border-radius:8px;
  background:var(--orange);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border:2px solid rgba(255,255,255,.86);
  border-radius:3px;
}
.nav__menu{display:flex;align-items:center;gap:32px;list-style:none;padding:0;margin:0}
.nav__link{position:relative;display:inline-block;font-size:15px;color:var(--text);padding:6px 0}
.nav__link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--orange);
  transition:width 240ms var(--ease);
}
.nav__link:hover{color:var(--green)}
.nav__link.is-active{color:var(--ink);font-weight:600}
.nav__link.is-active::after{width:20px}
.nav-mobile-cta{display:none}
.nav__actions{display:flex;align-items:center;gap:20px}
.text-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  color:var(--ink);
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:1px;background:currentColor;
  transition:width 240ms var(--ease);
}
.text-link:hover{color:var(--orange)}
.text-link:hover::after{width:100%}
.text-link span{transition:transform 180ms var(--ease)}
.text-link:hover span{transform:translateX(4px)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  padding:0;
}
.nav-toggle i{display:block;width:18px;height:1.6px;background:var(--ink);margin:4px auto;border-radius:2px}

/* ============ 按钮 ============ */
.rl-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  font-size:15.5px;
  font-weight:600;
  cursor:pointer;
  text-align:center;
  transition:transform 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.rl-btn--primary{background:var(--orange);color:#fff}
.rl-btn--primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(198,63,23,.65)}
.rl-btn--ghost{border-color:var(--green);color:var(--ink);background:transparent}
.rl-btn--ghost:hover{background:rgba(168,217,198,.3);color:var(--ink);transform:translateY(-1px)}
.rl-btn--sm{height:40px;padding:0 20px;font-size:14.5px}
.rl-btn--onDark{background:var(--orange);color:#fff}
.rl-btn--onDark:hover{background:#F0623C;color:#fff;transform:translateY(-1px)}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:28px 0 0;
  font-size:13px;
  letter-spacing:.05em;
  color:var(--muted);
  list-style:none;
  margin:0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb__current{color:var(--text);max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.breadcrumb__sep{color:var(--border)}

/* ============ 文章头部 ============ */
.article-head{padding:24px 0 34px;border-bottom:1px solid var(--border)}
.badge-cat{
  display:inline-block;
  background:rgba(11,43,35,.88);
  color:var(--lt);
  font-size:12.5px;
  letter-spacing:.08em;
  padding:5px 12px;
  border-radius:var(--radius-badge);
}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  margin:18px 0 18px;
  max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#CFC9BC}
.article-head__img{margin-top:28px;border-radius:var(--radius-img);overflow:hidden;background:var(--img-bg);box-shadow:var(--shadow)}
.article-head__img img{width:100%;height:320px;object-fit:cover}

/* ============ 主布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;padding:48px 0 0}
.article-main{max-width:760px;min-width:0}

/* ============ 正文排版 ============ */
.article-body{font-size:17px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.45;
  font-weight:700;
  margin:1.6em 0 .8em;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;left:0;top:.28em;
  width:3px;height:1em;
  background:var(--orange);
  border-radius:2px;
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;margin:1.4em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;margin:1.2em 0 .5em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body li{margin:.4em 0;line-height:1.85}
.article-body blockquote{
  margin:1.5em 0;
  padding:20px;
  border-left:3px solid var(--green);
  background:var(--surface-2);
  border-radius:0 10px 10px 0;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--radius-img);
  background:var(--img-bg);
  margin:1.5em auto;
}
.article-body figure{margin:1.5em 0}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--muted);
  margin-top:10px;
  letter-spacing:.04em;
}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left;vertical-align:top}
.article-body thead th{background:var(--surface-2);font-weight:600}
.article-body tbody tr:nth-child(even){background:var(--surface-2)}
.article-body a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--orange)}
.article-body hr{border:0;border-top:1px solid var(--border);margin:2em 0}

/* 空态 */
.article-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:18px;
  min-height:260px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:40px 24px;
  text-align:center;
}
.article-empty p{margin:0;color:var(--muted);font-size:16px}

/* ============ 侧边栏 ============ */
.sidebar{display:flex;flex-direction:column;gap:20px;align-self:start;position:sticky;top:96px}
.side-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:22px;
}
.side-card h3{font-size:15px;font-weight:700;letter-spacing:.06em;margin:0 0 14px;color:var(--ink)}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:block;
  font-size:15px;
  color:var(--text);
  padding:10px 12px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.side-list a:hover{background:var(--surface-2);border-left-color:var(--orange);color:var(--orange)}
.side-hint{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0 0 16px}
.side-card--dark{background:var(--ink);border-color:var(--ink);color:var(--lt)}
.side-card--dark h3{color:var(--lt)}
.side-card--dark .side-hint{color:var(--lt-dim)}
.side-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.side-steps li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--lt-dim)}
.side-steps b{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:6px;
  background:rgba(168,217,198,.18);
  color:var(--mint);
  font-size:12px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:3px;
  font-variant-numeric:tabular-nums;
}

/* ============ 文章底部 ============ */
.article-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--border);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:999px;
  padding:5px 13px;
}
.share-hint{font-size:13px;color:var(--muted);letter-spacing:.05em}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 0}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--orange);
  margin-bottom:10px;
}
.section-eyebrow::before{content:"";width:24px;height:1.5px;background:var(--orange)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card__media{position:relative;background:var(--img-bg);overflow:hidden}
.card__media img{width:100%;height:170px;object-fit:cover;transition:transform 600ms var(--ease)}
.card:hover .card__media img{transform:scale(1.03)}
.card__badge{
  position:absolute;left:12px;top:12px;
  background:rgba(11,43,35,.82);
  color:var(--lt);
  font-size:12px;
  letter-spacing:.06em;
  padding:4px 10px;
  border-radius:var(--radius-badge);
}
.card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:17px;font-weight:700;line-height:1.45}
.card:hover .card__body h3{color:var(--orange)}
.card__body p{font-size:14.5px;line-height:1.75;color:var(--muted)}
.card__meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.05em;
  padding-top:10px;
  border-top:1px solid var(--border);
}
.card__meta span.arrow{color:var(--green);transition:transform 180ms var(--ease)}
.card:hover .card__meta span.arrow{transform:translateX(4px)}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--ink);color:var(--lt);margin-top:88px;padding:72px 0}
.cta-band__inner{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.3;color:var(--lt);margin-bottom:14px}
.cta-band p{color:var(--lt-dim);font-size:16px;line-height:1.85;max-width:52ch}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-band .rl-btn--ghost{border-color:rgba(242,239,233,.4);color:var(--lt)}
.cta-band .rl-btn--ghost:hover{background:rgba(242,239,233,.1);color:var(--lt);border-color:var(--mint)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--lt);padding:0 0 24px;border-top:1px solid rgba(242,239,233,.12)}
.site-footer__cols{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 40px;
  border-top:1px solid rgba(242,239,233,.12);
}
.site-footer .brand{color:var(--lt);font-size:18px;margin-bottom:16px}
.site-footer__desc{font-size:14px;line-height:1.85;color:var(--lt-dim);max-width:34ch}
.site-footer h4{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--mint);margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.site-footer li{font-size:14px;line-height:1.8;color:var(--lt-dim)}
.site-footer li a{color:var(--lt-dim)}
.site-footer li a:hover{color:var(--mint)}
.site-footer__bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:22px;
  border-top:1px solid rgba(242,239,233,.12);
  font-size:13px;
  color:var(--lt-dim);
  letter-spacing:.04em;
}
.to-top{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid rgba(242,239,233,.28);
  background:transparent;
  color:var(--lt);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.to-top:hover{background:rgba(242,239,233,.1);border-color:var(--mint);transform:translateY(-2px)}

/* ============ 固定转化条 ============ */
.float-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  height:64px;
  padding:0 20px;
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--border);
  box-shadow:0 -10px 26px -20px rgba(11,43,35,.5);
}
.float-bar__text{font-size:14px;color:var(--ink);letter-spacing:.04em}
.float-bar__close{
  display:none;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--muted);
  cursor:pointer;
  line-height:1;
  align-items:center;
  justify-content:center;
  padding:0;
}
body{padding-bottom:80px}
@media (min-width:992px){
  body{padding-bottom:0}
  .float-bar{
    left:auto;right:24px;bottom:24px;
    width:320px;height:auto;
    padding:14px 16px;
    border:1px solid var(--border);
    border-radius:14px;
    box-shadow:var(--shadow);
    opacity:0;
    transform:translateY(10px);
    pointer-events:none;
    transition:opacity 320ms var(--ease),transform 320ms var(--ease);
  }
  .float-bar.is-visible{opacity:1;transform:none;pointer-events:auto}
  .float-bar__close{display:inline-flex}
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:40px}
  .site-footer__cols{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-toggle{display:block}
  .nav__actions .text-link{display:none}
  .nav__menu{
    position:fixed;
    left:0;right:0;top:0;bottom:0;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:96px 24px 32px;
    background:var(--bg);
    transform:translateX(102%);
    transition:transform 320ms var(--ease);
    overflow-y:auto;
  }
  .nav__menu.is-open{transform:translateX(0)}
  .nav__menu li{border-bottom:1px solid var(--border)}
  .nav__link{display:block;font-size:20px;padding:20px 4px}
  .nav__link::after{display:none}
  .nav__link.is-active{color:var(--orange)}
  .nav-mobile-cta{display:block;border-bottom:0;padding-top:24px}
  .nav-mobile-cta .rl-btn{width:100%}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding-top:40px}
  .article-main{max-width:none}
  .sidebar{position:static;top:auto}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band__inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-band__actions{justify-content:flex-start}
  .article-head__img img{height:260px}
}
@media (max-width:767px){
  .site-footer__cols{grid-template-columns:repeat(2,minmax(0,1fr));padding:48px 0 32px}
  .cta-band{padding:56px 0;margin-top:64px}
  .related{padding-top:56px}
}
@media (max-width:575px){
  body{font-size:16px}
  .article-head h1{font-size:26px}
  .article-head__img img{height:200px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .rl-btn{width:100%}
  .rl-btn--sm{width:auto}
  .nav__actions .rl-btn--sm{display:none}
  .site-footer__cols{grid-template-columns:minmax(0,1fr);gap:28px}
  .site-footer__bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .article-foot{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{transform:none}
  .card:hover{transform:none}
  .card:hover .card__media img{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0B2B23;
  --green:#1B7A5A;
  --mint:#A8D9C6;
  --orange:#E8542B;
  --orange-dark:#C63F17;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#FBF9F5;
  --text:#16211D;
  --muted:#5C6B64;
  --line:#E2DED4;
  --img-bg:#EDEFE9;
  --on-dark:#F2EFE9;
  --on-dark-muted:rgba(242,239,233,.68);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow:0 1px 2px rgba(11,43,35,.06),0 12px 32px -12px rgba(11,43,35,.14);
  --shadow-hover:0 18px 40px -16px rgba(11,43,35,.2);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section:96px;
  --bs-primary:#1B7A5A;
  --bs-primary-rgb:27,122,90;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#16211D;
  --bs-link-color:#1B7A5A;
  --bs-link-hover-color:#E8542B;
  --bs-border-color:#E2DED4;
  --bs-border-radius:10px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:80px;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--green);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--text)}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:700}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(232,84,43,.35);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1400px){.container{max-width:1320px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:var(--on-dark);font-size:13px;letter-spacing:.06em}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:38px}
.topbar__domain{color:var(--on-dark-muted);font-variant-numeric:tabular-nums}
.topbar__note{color:var(--on-dark-muted);position:absolute;left:50%;transform:translateX(-50%)}
.topbar__inner{position:relative}
.topbar__link{color:var(--on-dark);display:inline-flex;align-items:center;gap:6px;position:relative}
.topbar__link span{transition:transform .18s var(--ease)}
.topbar__link::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--mint);transition:width .24s var(--ease)}
.topbar__link:hover{color:var(--mint)}
.topbar__link:hover::after{width:100%}
.topbar__link:hover span{transform:translateX(4px)}
@media(max-width:767px){
  .topbar__note{display:none}
  .topbar__inner{height:34px;font-size:12px}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -14px rgba(11,43,35,.35);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .24s var(--ease)}
.site-header.is-scrolled .nav__inner{height:60px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink);letter-spacing:0;
  white-space:nowrap;
}
.brand:hover{color:var(--ink)}
.brand__mark{
  width:28px;height:28px;border-radius:6px;flex:0 0 auto;
  background:
    linear-gradient(135deg,var(--orange) 0 48%,transparent 48% 100%),
    linear-gradient(315deg,var(--green) 0 48%,var(--ink) 48% 100%);
}
.nav__menu{display:flex;align-items:center;gap:32px}
.nav__link{
  display:inline-block;position:relative;
  font-size:15px;font-weight:500;color:var(--text);padding:6px 0;
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:0;height:2px;background:var(--orange);transition:width .2s var(--ease);
}
.nav__link:hover{color:var(--green)}
.nav__link.is-active::after{width:20px}
.nav__actions{display:flex;align-items:center;gap:20px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--text);position:relative;
}
.text-link span{transition:transform .18s var(--ease)}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--orange);transition:width .24s var(--ease)}
.text-link:hover{color:var(--orange)}
.text-link:hover::after{width:100%}
.text-link:hover span{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-btn);padding:0;cursor:pointer;position:relative;
}
.nav-toggle i{
  position:absolute;left:12px;width:20px;height:1.5px;background:var(--ink);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle i:nth-child(1){top:15px}
.nav-toggle i:nth-child(2){top:21px}
.nav-toggle i:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-mobile-cta{display:none}

/* ---------- 按钮 ---------- */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;border:1.5px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.rl-btn--primary{background:var(--orange);color:#FFF8F4;box-shadow:0 10px 24px -14px rgba(232,84,43,.9)}
.rl-btn--primary:hover{background:var(--orange-dark);color:#FFF8F4;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(198,63,23,.95)}
.rl-btn--primary:active{transform:translateY(0)}
.rl-btn--ghost{background:transparent;border-color:var(--green);color:var(--ink)}
.rl-btn--ghost:hover{background:rgba(168,217,198,.35);color:var(--ink);transform:translateY(-1px)}
.rl-btn--sm{height:42px;padding:0 20px;font-size:15px}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--green);
}
.btn-link-arrow span{transition:transform .18s var(--ease)}
.btn-link-arrow:hover{color:var(--orange)}
.btn-link-arrow:hover span{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;letter-spacing:.06em;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding-top:28px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--orange)}
.crumb .sep{color:#C9C3B6}
.crumb .now{color:var(--text)}

/* ---------- 窄幅横幅 ---------- */
.banner{padding:28px 0 0}
.banner__box{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow:hidden;
  display:grid;
  grid-template-columns:1.45fr 1fr;
  align-items:stretch;
  min-height:280px;
}
.banner__text{padding:44px 46px;display:flex;flex-direction:column;justify-content:center;gap:18px}
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--orange);
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--orange);display:block}
.banner__text h1{
  font-size:clamp(30px,4.2vw,44px);line-height:1.18;font-weight:800;
}
.banner__text p{font-size:17px;color:var(--muted);max-width:38em;margin:0}
.banner__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px}
.banner__media{position:relative;min-height:240px;background:var(--img-bg)}
.banner__media img{width:100%;height:100%;object-fit:cover}
.banner__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,43,35,.28),rgba(11,43,35,.06));
  pointer-events:none;
}
.badge-pill{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(11,43,35,.82);color:var(--on-dark);
  font-size:13px;letter-spacing:.06em;padding:8px 14px;border-radius:999px;
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section) 0 0}
.section--last{padding-bottom:var(--section)}
.section__head{max-width:760px;margin-bottom:36px}
.section__head .eyebrow{margin-bottom:16px}
.section__head p{color:var(--muted);font-size:16px;margin-top:14px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 双列信息卡 ---------- */
.cards2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.icard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:28px;display:grid;grid-template-columns:52px 1fr;gap:20px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.icard:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6D1C4}
.icard__num{
  width:52px;height:52px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums;
}
.icard:hover .icard__num{color:var(--orange);background:#FFF4EF;border-color:#F6D7CB}
.icard h3{margin-bottom:10px}
.icard p{font-size:15px;line-height:1.85;color:var(--muted);margin:0}
.icard__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-size:12px;letter-spacing:.06em;color:var(--green);
  background:rgba(168,217,198,.28);border-radius:var(--r-badge);padding:5px 10px;
}

/* ---------- 竖向步骤时间线 ---------- */
.timeline{position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:1px;background:var(--line)}
.tstep{position:relative;padding:0 0 34px 0}
.tstep:last-child{padding-bottom:0}
.tstep::before{
  content:"";position:absolute;left:-32px;top:11px;width:15px;height:15px;border-radius:50%;
  background:var(--surface);border:2px solid var(--mint);
}
.tstep:hover::before{border-color:var(--orange)}
.tstep__k{font-size:13px;letter-spacing:.08em;color:var(--orange);font-weight:600;font-variant-numeric:tabular-nums}
.tstep h3{margin:6px 0 10px}
.tstep p{font-size:15px;line-height:1.85;color:var(--muted);margin:0}

/* ---------- 深色核对区 ---------- */
.checkwrap{
  background:var(--ink);color:var(--on-dark);margin-top:var(--section);
  padding:72px 0;
}
.checkwrap h2{color:var(--on-dark)}
.checkwrap .eyebrow{color:var(--mint)}
.checkwrap .eyebrow::before{background:var(--mint)}
.checkwrap__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.checkwrap__grid p{color:var(--on-dark-muted);font-size:16px}
.checklist{display:grid;gap:0}
.checklist li{
  display:grid;grid-template-columns:26px 1fr;gap:16px;align-items:start;
  padding:20px 0;border-bottom:1px solid rgba(242,239,233,.16);
  font-size:16px;color:var(--on-dark);
}
.checklist li:first-child{padding-top:0}
.checklist li:last-child{border-bottom:0;padding-bottom:0}
.checklist li::before{
  content:"";width:22px;height:22px;border-radius:6px;margin-top:4px;
  background:linear-gradient(135deg,var(--orange) 0 50%,transparent 50% 100%);
  border:1px solid rgba(242,239,233,.35);
}
.checklist span{display:block;color:var(--on-dark-muted);font-size:15px;margin-top:6px}

/* ---------- 图文小段 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split__media{border-radius:var(--r-img);overflow:hidden;background:var(--img-bg)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- FAQ ---------- */
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:22px 44px 22px 0;box-shadow:none;border-radius:0;line-height:1.5;
}
.faq .accordion-button::after{
  display:none;
}
.faq .accordion-button:not(.collapsed){color:var(--ink);background:var(--surface-2)}
.faq .accordion-button:focus{box-shadow:none;outline:3px solid rgba(232,84,43,.25);outline-offset:-2px}
.faq .accordion-item{position:relative}
.faq .accordion-item::after{
  content:"+";position:absolute;right:6px;top:22px;font-size:20px;font-weight:400;color:var(--muted);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq .accordion-item:has(.accordion-button:not(.collapsed))::after{transform:rotate(45deg);color:var(--orange)}
.faq .accordion-body{padding:4px 46px 26px 0;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  margin-top:var(--section);background:var(--ink);color:var(--on-dark);
  padding:64px 0;
}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{color:var(--on-dark);margin-bottom:12px}
.cta-band p{color:var(--on-dark-muted);font-size:16px;margin:0;max-width:44em}
.cta-band__actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.cta-band .btn-link-arrow{color:var(--mint)}
.cta-band .btn-link-arrow:hover{color:var(--on-dark)}
.cta-band .rl-btn--primary:hover{color:#FFF8F4}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-dark);padding:64px 0 28px}
.site-footer__cols{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:36px;border-bottom:1px solid rgba(242,239,233,.16);
}
.site-footer .brand{color:var(--on-dark);margin-bottom:16px}
.site-footer h4{color:var(--on-dark);font-size:15px;letter-spacing:.04em;margin-bottom:16px}
.site-footer ul{display:grid;gap:10px}
.site-footer a,.site-footer li{font-size:14px;line-height:1.8;color:var(--on-dark-muted)}
.site-footer a:hover{color:var(--mint)}
.site-footer__desc{font-size:14px;color:var(--on-dark-muted);max-width:28em;margin:0}
.site-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:24px;
  font-size:13px;color:var(--on-dark-muted);letter-spacing:.04em;
}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(242,239,233,.35);
  background:transparent;color:var(--on-dark);cursor:pointer;font-size:16px;line-height:1;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{background:var(--orange);border-color:var(--orange);color:#FFF8F4;transform:translateY(-2px)}

/* ---------- 固定转化条 ---------- */
.cta-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  box-shadow:0 -10px 30px -22px rgba(11,43,35,.6);
  height:64px;display:flex;align-items:center;
}
.cta-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.cta-bar__text{font-size:14px;color:var(--muted)}
.cta-bar__btn{height:44px;padding:0 22px;font-size:15px}
.cta-float{
  display:none;
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media(max-width:1199px){
  .container{max-width:100%}
}
@media(max-width:991px){
  :root{--section:72px}
  .nav__menu{
    position:fixed;inset:72px 0 0 0;z-index:65;
    background:var(--bg);
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 120px;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
    overflow-y:auto;
  }
  .nav__menu.is-open{opacity:1;visibility:visible;transform:none}
  .nav__menu li{border-bottom:1px solid var(--line)}
  .nav__menu li:last-child{border-bottom:0}
  .nav__link{display:block;font-size:20px;font-weight:600;padding:20px 0}
  .nav__link.is-active::after{display:none}
  .nav__link.is-active{color:var(--orange)}
  .nav-toggle{display:block}
  .nav__actions .text-link{display:none}
  .nav-mobile-cta{display:block;border-bottom:0 !important;padding:24px 0 8px}
  .nav-mobile-cta .rl-btn{width:100%}
  .banner__box{grid-template-columns:1fr}
  .banner__media{min-height:220px;order:-1}
  .banner__text{padding:32px 28px}
  .cards2{grid-template-columns:1fr}
  .checkwrap__grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:28px}
  .site-footer__cols{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
}
@media(max-width:575px){
  :root{--section:56px}
  body{font-size:16px}
  .container{padding:0 20px}
  .brand{font-size:16px}
  .brand__mark{width:24px;height:24px}
  .banner__text h1{font-size:32px}
  .banner__actions .rl-btn{width:100%}
  .icard{grid-template-columns:1fr;gap:14px;padding:22px}
  .cards2{gap:16px}
  .site-footer__cols{grid-template-columns:1fr}
  .site-footer__bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-bar__text{font-size:13px}
  .cta-bar__btn{padding:0 16px}
}
@media(min-width:992px){
  body{padding-bottom:0}
  .cta-bar{display:none}
  .cta-float{
    display:flex;align-items:center;gap:16px;
    position:fixed;right:24px;bottom:24px;z-index:70;
    width:320px;padding:16px 16px 16px 20px;border-radius:14px;
    background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-hover);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .42s var(--ease),transform .42s var(--ease),visibility .42s var(--ease);
  }
  .cta-float.is-visible{opacity:1;visibility:visible;transform:none}
  .cta-float__text{font-size:14px;color:var(--text);line-height:1.5;flex:1}
  .cta-float__text small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
  .cta-float__close{
    position:absolute;right:8px;top:8px;width:24px;height:24px;border:0;background:transparent;
    color:var(--muted);cursor:pointer;line-height:1;font-size:15px;border-radius:50%;
  }
  .cta-float__close:hover{color:var(--orange);background:var(--surface-2)}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .reveal{transform:none}
  .icard:hover,.rl-btn--primary:hover,.to-top:hover{transform:none}
}