/* roulang page: index */
:root{
  --ink:#1B2420;
  --ink-2:#4A564F;
  --ink-3:#7B857E;
  --green:#12433A;
  --green-dark:#0A2A24;
  --green-light:#1E6A56;
  --red:#C2492F;
  --red-hover:#A63A24;
  --gold:#C7A15A;
  --ivory:#F7F3EA;
  --card:#FFFFFF;
  --sub:#EFE9DC;
  --line:#E3DCCB;
  --line-strong:#D6CDB8;
  --ok:#2F7D5A;
  --warn:#B5822E;
  --err:#B3261E;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,42,36,.06);
  --sh-2:0 6px 18px rgba(10,42,36,.08);
  --sh-3:0 18px 40px rgba(10,42,36,.10);
  --nav-w:236px;
  --content-max:1180px;
  --read-max:760px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ivory);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--green);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--red)}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{letter-spacing:.01em;color:var(--ink)}
:focus-visible{outline:2px solid var(--red);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ===== 布局骨架 ===== */
.shell{display:block;min-height:100vh}
.container{width:100%;max-width:var(--content-max);margin:0 auto;padding:0 24px}
.content-col{max-width:var(--read-max)}

/* ===== 顶部移动栏 ===== */
.topbar{
  position:sticky;top:0;z-index:50;height:58px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(247,243,234,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar__brand{font-size:14px;font-weight:700;color:var(--green);letter-spacing:.01em}
.hamburger{
  width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:0;border-radius:var(--r-md);cursor:pointer;
}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--green);transition:transform var(--ease),opacity var(--ease)}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== 侧栏导航 ===== */
.nav-side{
  position:fixed;left:0;top:0;bottom:0;z-index:60;
  width:min(86vw,360px);
  display:flex;flex-direction:column;
  padding:22px 18px 28px;
  background:var(--card);
  border-right:1px solid var(--line);
  transform:translateX(-101%);
  transition:transform .28s ease;
  overflow-y:auto;
  box-shadow:var(--sh-3);
}
.nav-side.is-open{transform:translateX(0)}
.nav-mask{position:fixed;inset:0;z-index:55;background:rgba(11,44,38,.55);border:0;padding:0;cursor:pointer}
.nav-brand{display:flex;align-items:flex-start;gap:10px;padding:0 6px 20px;border-bottom:1px solid var(--line);margin-bottom:16px}
.nav-brand__mark{
  flex:0 0 auto;width:30px;height:30px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:var(--green);color:#F3EEE2;font-size:15px;line-height:1;
}
.nav-brand__text{font-size:17px;font-weight:700;line-height:1.35;color:var(--green);letter-spacing:.01em}
.nav-brand__text:hover{color:var(--red)}
.nav-menu{display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:block;padding:11px 14px;border-radius:var(--r-md);
  font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.nav-item:hover{background:#F1ECE0;color:var(--green)}
.nav-item.is-active{background:#EFE9DC;border-left-color:var(--red);color:var(--green);font-weight:700}
.nav-side .btn{margin-top:20px}
.nav-foot{margin-top:auto;padding-top:26px;border-top:1px solid var(--line)}
.nav-foot__line{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.nav-foot__weak{font-size:12.5px;color:var(--ink-3);margin-top:6px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-md);
  border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:var(--green);color:#F7F3EA}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15.5px;font-weight:600;color:var(--green);
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.link-arrow span{transition:transform var(--ease)}
.link-arrow:hover{color:var(--red);border-bottom-color:currentColor}
.link-arrow:hover span{transform:translateX(3px)}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.7;
  color:var(--green);background:#F2ECDD;border:1px solid var(--gold);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--green-light);
  letter-spacing:.02em;
}
.eyebrow::before{content:"♠";color:var(--gold);font-size:14px;line-height:1}

/* ===== 首屏 ===== */
.hero{padding:56px 0 96px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(29px,3.4vw,40px);line-height:1.25;font-weight:700;margin:18px 0 20px}
.hero .lead{font-size:19px;line-height:1.8;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin:32px 0 28px}
.trust-bar{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13.5px;color:var(--ink-2)}
.trust-bar li{display:flex;align-items:center;gap:8px}
.trust-bar li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);flex:0 0 auto}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-xl);border:1px solid var(--line);background:var(--sub);
}

/* ===== 通用区块 ===== */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--green);color:#F3EEE2}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.4vw,28px);line-height:1.35;font-weight:700}
.section-head .section-sub{margin-top:12px;font-size:16px;color:var(--ink-2)}
.section--dark .section-head h2{color:#FBF8F1}
.section--dark .section-head .section-sub{color:rgba(247,243,234,.78)}
.gold-rule{width:64px;height:1px;background:var(--gold);border:0;margin:0}
.center-rule{margin:0 auto}

/* ===== 痛点区 ===== */
.pain-list{display:flex;flex-direction:column;gap:22px;max-width:820px}
.pain-item{display:flex;gap:18px;align-items:flex-start}
.pain-item__num{
  flex:0 0 auto;font-family:var(--font-num);font-size:15px;font-weight:700;
  color:var(--red);line-height:1.6;min-width:26px;
  border-left:2px solid var(--red);padding-left:10px;
}
.pain-item__text{font-size:18px;line-height:1.75;color:var(--ink)}
.pain-sep{margin-top:56px}

/* ===== 解决方案 交错图文 ===== */
.feature-list{display:flex;flex-direction:column;gap:72px}
.feature{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature--rev .feature__text{order:2}
.feature--rev .feature__media{order:1}
.feature__text h3{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:14px}
.feature__text p{font-size:16.5px;line-height:1.85;color:var(--ink-2);margin-bottom:12px}
.feature__link{margin-top:8px}
.feature__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--sub);
}

/* ===== 数据条 ===== */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);margin-top:8px}
.stat-bar__item{padding:0 26px;border-left:1px solid rgba(255,255,255,.14)}
.stat-bar__item:first-child{border-left:0;padding-left:0}
.stat-bar__num{
  font-family:var(--font-num);font-size:42px;font-weight:700;line-height:1.1;
  color:#FBF8F1;letter-spacing:-.01em;
}
.stat-bar__num small{font-size:18px;font-weight:600;margin-left:4px;color:rgba(251,248,241,.8)}
.stat-bar__label{font-size:12.5px;line-height:1.6;color:rgba(247,243,234,.72);margin-top:10px}

/* ===== 证言 ===== */
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.quote-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:30px 28px 26px;box-shadow:var(--sh-1);
}
.quote-card::before{
  content:"♣";position:absolute;top:16px;right:22px;
  font-size:16px;line-height:1;color:var(--gold);
}
.quote-card p{font-size:16px;line-height:1.85;color:var(--ink);padding-right:24px}
.quote-card footer{margin-top:18px;font-size:13px;color:var(--ink-3);line-height:1.7}

/* ===== 资讯列表 ===== */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card-news{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);color:var(--ink);
  transition:transform .24s ease,box-shadow .24s ease;
}
.card-news:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(10,42,36,.10);color:var(--ink)}
.card-news__media{aspect-ratio:16/9;background:var(--sub);overflow:hidden}
.card-news__media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.card-news:hover .card-news__media img{transform:scale(1.03)}
.card-news__body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1 1 auto}
.card-news__title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:18px;line-height:1.5;font-weight:600;margin:12px 0 8px;
}
.card-news__excerpt{
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14.5px;line-height:1.75;color:var(--ink-2);margin-bottom:16px;
}
.card-news__meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-top:auto}
.dot{width:6px;height:6px;border-radius:50%;background:var(--gold);display:inline-block;flex:0 0 auto}
.card-news__more{
  display:inline-flex;align-items:center;gap:6px;
  padding:0 22px 20px;font-size:14px;font-weight:600;color:var(--red);
}
.card-news__more span{transition:transform var(--ease)}
.card-news:hover .card-news__more span{transform:translateX(3px)}

/* ===== 空态 ===== */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;background:#FFFDF8;
}
.empty-state__icon{width:40px;height:40px;margin:0 auto 14px;color:var(--gold)}
.empty-state__title{font-size:16px;font-weight:500;color:var(--green);margin-bottom:6px}
.empty-state__desc{font-size:13.5px;color:var(--ink-3)}

/* ===== FAQ ===== */
.faq{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--card);box-shadow:var(--sh-1);overflow:hidden;
}
.faq__item+.faq__item{border-top:1px solid var(--line)}
.faq__item>summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:500;line-height:1.6;color:var(--ink);
  transition:background var(--ease);
}
.faq__item>summary::-webkit-details-marker{display:none}
.faq__item>summary:hover{background:#FBF7EE}
.faq__arrow{flex:0 0 auto;color:var(--gold);transition:transform var(--ease);margin-top:4px}
.faq__item[open] .faq__arrow{transform:rotate(180deg)}
.faq__body{padding:0 24px 22px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:760px}

/* ===== CTA 带 ===== */
.cta-band{background:var(--green-dark);color:#F3EEE2}
.cta-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px 0;
}
.cta-band h2{font-size:24px;line-height:1.4;font-weight:700;color:#FBF8F1}
.cta-band p{font-size:14.5px;color:rgba(247,243,234,.75);margin-top:8px}

/* ===== 页脚 ===== */
.site-footer{background:var(--green-dark);color:#C9BFA6}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;
  padding:64px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#F7F3EA}
.footer-brand__mark{
  width:28px;height:28px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(199,161,90,.5);color:var(--gold);font-size:14px;
}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#A9A08B;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:#F7F3EA;letter-spacing:.02em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:#C9BFA6;line-height:1.7}
.footer-col a:hover{color:#F7F3EA;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#8E8674;
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .section--tight{padding:48px 0}
  .hero{padding:32px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero .lead{max-width:none}
  .hero-actions{margin:26px 0 22px}
  .feature-list{gap:48px}
  .feature{grid-template-columns:1fr;gap:24px}
  .feature--rev .feature__text{order:0}
  .feature--rev .feature__media{order:0}
  .news-list{grid-template-columns:repeat(2,1fr);gap:20px}
  .quote-grid{grid-template-columns:1fr;gap:20px}
  .stat-bar{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .stat-bar__item:nth-child(odd){border-left:0;padding-left:0}
  .section-head{margin-bottom:32px}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:22px;padding:36px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .faq__item>summary{padding:18px 18px;font-size:16px}
  .faq__body{padding:0 18px 20px}
}
@media (max-width:639px){
  body{font-size:16px}
  .news-list{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:1fr;row-gap:26px}
  .stat-bar__item{padding:0;border-left:0;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.12)}
  .stat-bar__item:last-child{border-bottom:0;padding-bottom:0}
  .stat-bar__num{font-size:34px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .hero-actions{gap:14px}
  .btn{width:100%}
  .hero-actions .link-arrow{width:auto}
  .pain-item__text{font-size:16.5px}
}
@media (min-width:1024px){
  .shell{display:flex;align-items:flex-start}
  .topbar{display:none}
  .nav-mask{display:none!important}
  .nav-side{
    position:sticky;top:0;transform:none;
    width:var(--nav-w);flex:0 0 var(--nav-w);height:100vh;
    padding:26px 18px 30px;box-shadow:none;overflow-y:auto;
  }
  .content{flex:1 1 auto;min-width:0}
  .no-scroll{overflow:auto}
}

/* roulang page: category1 */
:root{
  --green:#12433A;
  --green-dark:#0A2A24;
  --green-light:#1E6A56;
  --red:#C2492F;
  --red-dark:#A63A24;
  --gold:#C7A15A;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DC;
  --surface-3:#FBF8F1;
  --ink:#1B2420;
  --ink-2:#4A564F;
  --ink-3:#7B857E;
  --line:#E3DCCB;
  --line-strong:#D6CDB8;
  --ok:#2F7D5A;
  --warn:#B5822E;
  --err:#B3261E;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,42,36,.06);
  --sh-2:0 6px 18px rgba(10,42,36,.08);
  --sh-3:0 18px 40px rgba(10,42,36,.10);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px;
  --sidebar-w:236px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--green-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--red)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--green-dark);letter-spacing:.01em}
h1{font-size:clamp(27px,3.4vw,40px);line-height:1.25;font-weight:700}
h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.15em;padding-left:1.4em}
li{line-height:1.85;margin-bottom:.35em}
:focus-visible{outline:2px solid var(--red);outline-offset:2px;border-radius:4px}

/* ---------- 布局 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.content{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.section{padding:clamp(48px,7vw,96px) 0}
.section--tight{padding-top:clamp(32px,4vw,56px)}

/* ---------- 左侧导航 ---------- */
.sidebar{
  flex:0 0 var(--sidebar-w);
  width:var(--sidebar-w);
  position:sticky;top:0;
  height:100vh;
  overflow-y:auto;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:24px 16px 20px;
  display:flex;flex-direction:column;
  gap:22px;
  z-index:80;
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 0;color:var(--green-dark)}
.brand:hover{color:var(--green-dark)}
.brand-mark{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:8px;
  background:var(--green);color:#F7F3EA;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;
}
.brand-text{font-size:17px;font-weight:700;line-height:1.35;letter-spacing:.01em}
.nav-menu{display:flex;flex-direction:column;gap:2px}
.nav-item{
  position:relative;
  display:flex;align-items:center;
  padding:10px 12px 10px 14px;
  border-radius:var(--r-md);
  font-size:15px;
  color:var(--ink-2);
  transition:background-color .2s ease,color .2s ease;
}
.nav-item:hover{background:#F1ECE0;color:var(--green)}
.nav-item.is-active{background:var(--surface-2);color:var(--green);font-weight:700}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--red);
}
.sidebar-cta{margin-top:2px}
.sidebar-foot{
  margin-top:auto;
  padding:14px 12px 6px;
  border-top:1px solid var(--line);
  font-size:13px;line-height:1.7;
}
.sidebar-foot strong{display:block;color:var(--green-dark);font-size:13px;font-weight:700;margin-bottom:2px}
.sidebar-foot span{color:var(--ink-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-align:center;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--red);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--red-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border:1.5px solid var(--green);color:var(--green)}
.btn-ghost:hover{background:var(--green);color:#F7F3EA}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#F7F3EA;color:var(--green-dark);border-color:#F7F3EA}
.btn-light:hover{background:#fff;color:var(--green-dark)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--green);
}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover{color:var(--red)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 通用元件 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border:1px solid var(--gold);
  border-radius:var(--r-pill);
  background:var(--surface-3);
  color:#8A6D2F;
  font-size:13px;line-height:1.6;font-weight:500;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--red);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:var(--line-strong)}
.divider-gold{width:64px;height:1px;background:var(--gold);border:0;margin:0 0 28px}
.section-head{max-width:760px;margin-bottom:32px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px}
.lede{font-size:18px;line-height:1.8;color:var(--ink-2);max-width:760px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px;font-size:14px;color:var(--ink-3)}
.trust-row span{display:inline-flex;align-items:center;gap:7px}
.trust-row span::before{content:"♣";color:var(--gold);font-size:12px}

/* ---------- 首屏 ---------- */
.page-hero{padding:clamp(36px,5vw,64px) 0 clamp(8px,2vw,16px)}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px}

/* ---------- 下载前准备 ---------- */
.prep-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:8px;
}
.prep-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease,transform .24s ease;
}
.prep-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.prep-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--r-sm);
  background:var(--surface-2);color:var(--red);
  font-size:15px;font-weight:700;margin-bottom:14px;
}
.prep-item h3{margin-bottom:8px}
.prep-item p{font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:34px;margin-top:4px}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--green) 0%,rgba(18,67,58,.25) 100%);
}
.step{position:relative;padding-bottom:26px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-34px;top:22px;
  width:16px;height:16px;border-radius:50%;
  background:var(--red);
  border:3px solid var(--bg);
  box-shadow:0 0 0 1px rgba(194,73,47,.35);
}
.step-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease,transform .24s ease;
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.step-label{font-size:13px;font-weight:700;color:var(--red);letter-spacing:.06em;margin-bottom:6px}
.step-card h3{margin-bottom:8px}
.step-card p{font-size:16px;line-height:1.85;color:var(--ink-2)}
.req-box{
  margin-top:16px;
  background:var(--surface-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-md);
  padding:16px 18px;
}
.req-box dl{display:grid;grid-template-columns:110px 1fr;gap:6px 14px;margin:0;font-size:14px;line-height:1.75}
.req-box dt{color:var(--ink-3)}
.req-box dd{margin:0;color:var(--ink-2)}

/* ---------- 配图 ---------- */
.figure{margin:0}
.figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);
  background:var(--surface-2);
  border:1px solid var(--line);
}
.figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-3);text-align:center}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:8px}
.spec-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-1);
}
.spec-card h3{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.spec-card h3::before{content:"♦";color:var(--gold);font-size:14px}
.spec-list{list-style:none;margin:0;padding:0}
.spec-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;line-height:1.7;
}
.spec-list li:last-child{border-bottom:0}
.spec-list .k{color:var(--ink-3)}
.spec-list .v{color:var(--ink);font-weight:500;text-align:right}

/* ---------- FAQ ---------- */
.faq{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 20px;
  font-size:17px;font-weight:500;color:var(--ink);
  transition:background-color .2s ease,color .2s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--surface-3);color:var(--green)}
.faq summary::after{
  content:"";flex:0 0 auto;
  width:9px;height:9px;margin-right:4px;
  border-right:2px solid var(--green);border-bottom:2px solid var(--green);
  transform:rotate(45deg);
  transition:transform .22s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq details[open] summary{color:var(--green)}
.faq-body{padding:0 20px 20px;font-size:16px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--green-dark);color:#F7F3EA;margin-top:clamp(48px,7vw,88px)}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:clamp(40px,5vw,64px) 0;
}
.cta-band h2{color:#F7F3EA;max-width:620px}
.cta-band p{color:rgba(247,243,234,.78);font-size:16px;max-width:620px;margin-top:12px}
.cta-band .btn-primary{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-dark);color:#C9BFA6;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
  padding:clamp(40px,5vw,64px) 0 32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F7F3EA;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-brand:hover{color:#F7F3EA}
.footer-brand .brand-mark{background:#F7F3EA;color:var(--green-dark)}
.footer-col h3{font-size:14px;font-weight:700;color:#F7F3EA;margin-bottom:14px;letter-spacing:.02em}
.footer-col p{font-size:14px;line-height:1.8;color:#C9BFA6;margin:0}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#C9BFA6;font-size:14px}
.footer-col a:hover{color:#F7F3EA;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(247,243,234,.14);
  padding:18px 0 28px;
  font-size:13px;color:rgba(201,191,166,.8);
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{display:none}
.overlay{display:none}
.nav-toggle{
  width:44px;height:44px;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-md);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--green-dark);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:1023.98px){
  .side-cta-desktop{display:none}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:60;
    height:58px;padding:0 16px;
    background:rgba(247,243,234,.96);
    backdrop-filter:saturate(140%) blur(8px);
    border-bottom:1px solid var(--line);
  }
  .topbar .brand-text{font-size:14px}
  .topbar .brand-mark{width:24px;height:24px;font-size:13px;border-radius:7px}
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;
    width:min(86vw,360px);height:100%;
    transform:translateX(-100%);
    transition:transform .28s ease;
    border-right:0;
    box-shadow:var(--sh-3);
    z-index:80;
  }
  body.nav-open .sidebar{transform:none}
  .overlay{
    display:block;
    position:fixed;inset:0;
    background:rgba(11,44,38,.55);
    opacity:0;visibility:hidden;
    transition:opacity .28s ease,visibility .28s ease;
    z-index:70;
  }
  body.nav-open .overlay{opacity:1;visibility:visible}
  body.nav-open{overflow:hidden}
  .sidebar-cta{margin-top:6px}
  .step::before{left:-34px;top:20px}
}

@media (max-width:900px){
  .prep-grid{grid-template-columns:1fr 1fr}
  .spec-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}

@media (max-width:640px){
  body{font-size:16px}
  .prep-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .timeline{padding-left:26px}
  .timeline::before{left:5px}
  .step::before{left:-26px;top:18px;width:14px;height:14px}
  .step-card{padding:18px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .link-arrow{justify-content:center}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band .btn-primary{width:100%}
  .req-box dl{grid-template-columns:1fr;gap:2px}
  .req-box dd{margin-bottom:8px}
  .spec-list li{flex-direction:column;gap:2px}
  .spec-list .v{text-align:left}
}

/* roulang page: article */
:root{
  --paper:#F7F3EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DC;
  --brand:#12433A;
  --brand-deep:#0A2A24;
  --brand-light:#1E6A56;
  --accent:#C2492F;
  --accent-hover:#A63A24;
  --gold:#C7A15A;
  --ink:#1B2420;
  --ink-2:#4A564F;
  --ink-3:#7B857E;
  --line:#E3DCCB;
  --line-strong:#D6CDB8;
  --ok:#2F7D5A;
  --warn:#B5822E;
  --err:#B3261E;
  --r-sm:8px;
  --r:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,42,36,.06);
  --sh-2:0 6px 18px rgba(10,42,36,.08);
  --sh-3:0 18px 40px rgba(10,42,36,.10);
  --sidebar-w:236px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:#F1D9CF;color:var(--brand-deep);}

/* ---------- 骨架布局 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh;}

/* ---------- 左侧栏 ---------- */
.sidebar{
  position:sticky;
  top:0;
  flex:0 0 var(--sidebar-w);
  width:var(--sidebar-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:26px 18px 22px;
  overflow-y:auto;
  z-index:40;
}
.brand{display:flex;gap:10px;align-items:flex-start;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px;}
.brand__mark{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;
  background:var(--brand);color:#F3E7CF;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;border:1px solid rgba(199,161,90,.55);
}
.brand__text{
  font-size:17px;font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--brand);
}
.brand__sub{display:block;font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:0;margin-top:4px;line-height:1.6;}
.nav-menu{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:block;
  padding:10px 12px;
  border-radius:var(--r);
  border-left:3px solid transparent;
  font-size:15px;
  color:var(--ink-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-item:hover{background:#F1ECE0;color:var(--brand);}
.nav-item.is-active{background:var(--surface-2);border-left-color:var(--accent);color:var(--brand);font-weight:700;}
.side-cta{margin-top:24px;}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:13px;line-height:1.75;color:var(--ink-3);}
.side-foot strong{display:block;color:var(--ink-2);font-weight:600;font-size:13.5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r);
  font-size:15.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#FFFFFF;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:var(--paper);}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-more::after{content:"→";transition:transform .2s ease;}
.link-more:hover{color:var(--accent);}
.link-more:hover::after{transform:translateX(3px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;
  position:sticky;top:0;z-index:50;
  height:58px;padding:0 16px;
  align-items:center;justify-content:space-between;
  background:rgba(247,243,234,.95);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar__brand{font-size:14px;font-weight:700;color:var(--brand);letter-spacing:.01em;}
.hamburger{
  width:44px;height:44px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(11,44,38,.55);z-index:55;
}
.drawer-mask.is-open{display:block;}

/* ---------- 主体 ---------- */
.main{flex:1 1 auto;min-width:0;}
.container{max-width:1180px;margin:0 auto;padding:0 32px;}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding:30px 0 6px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:1.6;color:var(--ink-3);}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;}

/* ---------- 文章头部 ---------- */
.article-head{padding:14px 0 26px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.4;
  color:var(--brand);background:var(--surface-2);border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease;
}
.badge:hover{border-color:var(--gold);color:var(--brand-light);}
.badge::before{content:"♠";font-size:11px;line-height:1;color:var(--gold);}
.article-head h1{
  margin:16px 0 0;
  font-size:40px;line-height:1.3;font-weight:700;letter-spacing:.01em;color:var(--brand-deep);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--ink-3);
}
.article-meta a{color:var(--ink-2);}
.article-meta a:hover{color:var(--accent);}
.sep-dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);display:inline-block;}

/* ---------- 正文两栏 ---------- */
.article-body{
  display:grid;
  grid-template-columns:minmax(0,760px) 300px;
  gap:48px;
  padding:38px 0 8px;
  align-items:start;
}
.prose-cn{font-size:17px;line-height:1.9;color:var(--ink);min-width:0;}
.prose-cn > *:first-child{margin-top:0;}
.prose-cn p{margin:0 0 1.15em;}
.prose-cn h2{
  position:relative;
  font-size:26px;line-height:1.4;font-weight:700;letter-spacing:.01em;color:var(--brand-deep);
  margin:2.2em 0 .7em;
}
.prose-cn h2::before{content:"";display:block;width:16px;height:4px;border-radius:2px;background:var(--accent);margin-bottom:10px;}
.prose-cn h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--brand);margin:1.8em 0 .6em;}
.prose-cn h4{font-size:17px;line-height:1.6;font-weight:600;color:var(--ink);margin:1.5em 0 .5em;}
.prose-cn ul,.prose-cn ol{padding-left:1.4em;margin:0 0 1.15em;}
.prose-cn ul{list-style:disc;}
.prose-cn ol{list-style:decimal;}
.prose-cn li{line-height:1.85;margin-bottom:.4em;}
.prose-cn li::marker{color:var(--brand);}
.prose-cn blockquote{
  border-left:3px solid var(--gold);
  background:#FBF8F1;
  padding:20px 24px;
  margin:1.6em 0;
  border-radius:0 var(--r) var(--r) 0;
  color:var(--ink-2);
  font-size:16.5px;
}
.prose-cn blockquote p:last-child{margin-bottom:0;}
.prose-cn img{
  max-width:100%;height:auto;
  border-radius:var(--r-md);
  margin:1.6em auto;
  background:var(--surface-2);
  border:1px solid var(--line);
}
.prose-cn figure{margin:1.6em 0;}
.prose-cn figcaption{font-size:13px;line-height:1.7;color:var(--ink-3);text-align:center;margin-top:8px;}
.prose-cn a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.prose-cn a:hover{color:var(--accent);}
.prose-cn strong{font-weight:700;color:var(--brand-deep);}
.prose-cn table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;line-height:1.75;}
.prose-cn thead th{background:var(--surface-2);font-weight:600;color:var(--brand-deep);}
.prose-cn th,.prose-cn td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.prose-cn tbody tr:nth-child(even){background:#FCFAF4;}
.prose-cn hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

/* ---------- 侧栏卡片 ---------- */
.article-aside{display:flex;flex-direction:column;gap:18px;position:sticky;top:24px;align-self:start;}
.aside-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px;
  box-shadow:var(--sh-1);
}
.aside-card__title{
  font-size:14px;font-weight:700;color:var(--brand-deep);
  padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.aside-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:14px;}
.toc__list{list-style:none;padding:0;margin:0;font-size:14px;line-height:1.7;}
.toc__list li{margin-bottom:8px;}
.toc__list li.is-sub{padding-left:14px;font-size:13.5px;}
.toc__list a{color:var(--ink-2);display:block;transition:color .2s ease,padding-left .2s ease;}
.toc__list a:hover{color:var(--accent);padding-left:2px;}
.toc__empty{font-size:13.5px;color:var(--ink-3);margin:0;}

/* ---------- 文末导航 ---------- */
.post-foot{padding:44px 0 8px;border-top:1px solid var(--line);margin-top:40px;}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;}
.post-nav__item{
  display:flex;flex-direction:column;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.post-nav__item:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);transform:translateY(-2px);}
.post-nav__item span{font-size:12.5px;color:var(--ink-3);letter-spacing:.02em;}
.post-nav__item strong{font-size:16px;font-weight:600;color:var(--brand);}
.post-nav__item.is-next{text-align:right;align-items:flex-end;}

/* ---------- 相关推荐 ---------- */
.section{padding:56px 0 0;}
.section-title{font-size:28px;line-height:1.35;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;}
.section-sub{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.rule{width:64px;height:1px;background:var(--gold);border:0;margin:18px 0 0;}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;margin-top:30px;}
.card-news{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card-news:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(10,42,36,.10);border-color:var(--line-strong);}
.card-news__media{aspect-ratio:16 / 9;overflow:hidden;background:var(--surface-2);}
.card-news__media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.card-news:hover .card-news__media img{transform:scale(1.03);}
.card-news__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-news__body h3{
  font-size:18px;line-height:1.5;font-weight:600;color:var(--brand-deep);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-news__body p{
  font-size:14.5px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-news__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-news__time{font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:6px;}
.card-news__time::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);display:inline-block;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-md);
  padding:48px 32px;
  text-align:center;
  background:#FCFAF4;
}
.empty-state__icon{
  width:40px;height:40px;margin:0 auto 16px;border-radius:50%;
  border:1.5px solid var(--line-strong);color:var(--ink-3);
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
}
.empty-state__title{font-size:16px;font-weight:600;color:var(--brand);}
.empty-state__sub{font-size:14px;color:var(--ink-3);margin-top:8px;line-height:1.75;}
.empty-state .link-more{margin-top:14px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:80px;background:var(--brand-deep);color:#C9BFA6;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding:56px 32px 40px;}
.footer-brand{font-size:17px;font-weight:700;color:#F7F3EA;letter-spacing:.01em;margin-bottom:12px;}
.site-footer p{font-size:14px;line-height:1.8;color:#C9BFA6;}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--gold);margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;line-height:2;color:#C9BFA6;transition:color .2s ease;}
.footer-col a:hover{color:#F7F3EA;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom .container{padding-top:20px;padding-bottom:24px;font-size:13px;color:#9E9884;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .layout{display:block;}
  .topbar{display:flex;}
  .sidebar{
    position:fixed;top:0;left:0;
    width:min(86vw,360px);height:100vh;
    transform:translateX(-102%);
    transition:transform .28s ease;
    box-shadow:var(--sh-3);
    border-right:1px solid var(--line);
    z-index:60;
  }
  .sidebar.is-open{transform:translateX(0);}
  .side-cta .btn{width:100%;}
  .article-body{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:30px;}
  .article-aside{position:static;order:2;}
  .prose-cn{order:1;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 24px 32px;gap:26px;}
}
@media (max-width:767px){
  body{font-size:16.5px;}
  .container{padding:0 18px;}
  .crumb-wrap{padding:20px 0 4px;}
  .article-head h1{font-size:28px;line-height:1.32;}
  .prose-cn h2{font-size:22px;}
  .prose-cn h3{font-size:18.5px;}
  .article-body{padding-top:24px;}
  .news-grid{grid-template-columns:minmax(0,1fr);}
  .post-nav{grid-template-columns:minmax(0,1fr);}
  .post-nav__item.is-next{text-align:left;align-items:flex-start;}
  .section{padding-top:40px;}
  .section-title{font-size:23px;}
  .site-footer{margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;padding:36px 18px 26px;}
  .prose-cn table{display:block;overflow-x:auto;white-space:nowrap;}
}

/* roulang page: category2 */
:root{
  --ink:#1B2420;
  --ink-2:#4A564F;
  --ink-3:#7B857E;
  --green:#12433A;
  --green-d:#0A2A24;
  --green-l:#1E6A56;
  --red:#C2492F;
  --red-d:#A63A24;
  --gold:#C7A15A;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --surface-2:#EFE9DC;
  --surface-3:#FBF8F1;
  --line:#E3DCCB;
  --line-2:#D6CDB8;
  --ok:#2F7D5A;
  --warn:#B5822E;
  --err:#B3261E;
  --r-8:8px;
  --r-10:10px;
  --r-14:14px;
  --r-20:20px;
  --sh-1:0 1px 2px rgba(10,42,36,.06);
  --sh-2:0 6px 18px rgba(10,42,36,.08);
  --sh-3:0 18px 40px rgba(10,42,36,.10);
  --nav-w:236px;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--green-l);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--red)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--red);outline-offset:2px;border-radius:4px}
body.no-scroll{overflow:hidden}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.content-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 40px}

/* ---------- 左栏导航 ---------- */
.nav-side{
  position:sticky;top:0;
  width:var(--nav-w);flex:0 0 var(--nav-w);
  height:100vh;overflow-y:auto;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;gap:26px;
}
.brand{display:flex;gap:10px;align-items:flex-start;text-decoration:none}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--green);color:#F7F3EA;
  display:grid;place-items:center;font-size:16px;line-height:1;
}
.brand-name{
  font-size:17px;font-weight:700;line-height:1.35;
  color:var(--green);letter-spacing:.01em;
}
.brand-sub{display:block;margin-top:4px;font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:.04em}
.nav-menu{display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:block;padding:10px 12px;border-radius:var(--r-10);
  font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:#F1ECE0;color:var(--green)}
.nav-item.is-active{
  background:var(--surface-2);
  border-left-color:var(--red);
  color:var(--green);font-weight:700;
}
.side-cta{display:flex;flex-direction:column;gap:8px}
.side-cta .btn{width:100%;justify-content:center}
.side-cta-note{font-size:12px;line-height:1.6;color:var(--ink-3)}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}
.side-foot-title{font-size:13px;font-weight:600;color:var(--ink-2)}
.side-foot-note{font-size:12px;line-height:1.7;color:var(--ink-3);margin-top:4px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:40;
  height:58px;align-items:center;justify-content:space-between;
  padding:0 18px;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(6px);
}
.mobile-brand{font-size:14px;font-weight:700;color:var(--green);letter-spacing:.01em}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-10);display:grid;place-items:center;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.menu-btn:hover{border-color:var(--line-2);background:var(--surface-3)}
.menu-btn span{display:block;width:18px;height:2px;background:var(--green);border-radius:2px;position:relative}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green);border-radius:2px;
}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,44,38,.55);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:55;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:var(--surface);z-index:60;
  transform:translateX(100%);transition:transform .28s ease;
  padding:20px 18px 24px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;
  box-shadow:-12px 0 32px rgba(10,42,36,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-10);color:var(--green);font-size:18px;cursor:pointer;line-height:1;
}
.drawer-close:hover{background:var(--surface-3)}
.drawer .nav-menu{gap:6px}
.drawer .nav-item{font-size:16px;padding:12px 14px}
.drawer-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  height:46px;padding:0 22px;border-radius:var(--r-10);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--red);color:#FFF}
.btn-primary:hover{background:var(--red-d);color:#FFF;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:var(--green);color:#F7F3EA}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--green-l);
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover{color:var(--red)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 面包屑 / 徽章 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--ink-3);
}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--green)}
.crumbs .sep{color:var(--line-2)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:13px;line-height:1.6;font-weight:600;
  background:var(--surface-3);border:1px solid var(--gold);color:#8A6F37;
}
.badge-plain{background:var(--surface-2);border-color:var(--line-2);color:var(--ink-2);font-weight:500}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,#FBF8F1 0%,rgba(251,248,241,0) 100%);
  border-bottom:1px solid var(--line);
  padding:64px 0 56px;
}
.hero-inner{display:flex;flex-direction:column;gap:20px;max-width:820px}
.hero h1{
  font-size:40px;line-height:1.25;font-weight:700;
  letter-spacing:.01em;color:var(--green);
}
.hero .lede{font-size:18px;line-height:1.8;color:var(--ink-2);max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:4px}
.hero-note{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;line-height:1.7;color:var(--ink-3);margin-top:6px;
}
.hero-note span{display:inline-flex;align-items:center;gap:6px}
.hero-note span::before{
  content:"♠";font-size:11px;color:var(--gold);line-height:1;
}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0}
.sec-tight{padding:64px 0 88px}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{
  font-size:28px;line-height:1.35;font-weight:700;
  letter-spacing:.01em;color:var(--green);
}
.sec-head p{margin-top:12px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.divider-gold{width:64px;height:1px;background:var(--gold);border:0;margin:0}

/* ---------- 要点卡片网格 ---------- */
.rule-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rule-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-14);
  padding:26px 24px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rule-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.rc-head{display:flex;align-items:center;gap:12px}
.rc-icon{
  width:38px;height:38px;flex:0 0 38px;border-radius:var(--r-10);
  border:1px solid var(--line-2);background:var(--surface-3);
  display:grid;place-items:center;color:var(--green);font-size:15px;font-weight:700;
}
.rc-index{font-size:13px;font-weight:600;color:var(--gold);letter-spacing:.08em}
.rule-card h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--green);margin:16px 0 8px}
.rule-card p{font-size:16px;line-height:1.85;color:var(--ink-2)}
.rule-card .rc-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.figure-card{
  border-radius:var(--r-14);overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);
  box-shadow:var(--sh-1);
}
.figure-card img{
  width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--surface-2);
}
.figcaption{
  padding:12px 16px;font-size:13px;line-height:1.7;color:var(--ink-3);
  background:var(--surface);border-top:1px solid var(--line);text-align:center;
}
.flow-note{display:flex;flex-direction:column;gap:16px;margin-top:20px}
.flow-note li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:16px;line-height:1.85;color:var(--ink-2);
}
.flow-note li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:11px;
  background:var(--gold);border-radius:2px;
}
.flow-note strong{color:var(--green);font-weight:600}

/* ---------- 术语对照 ---------- */
.term-list{border-top:1px solid var(--line);margin-top:8px}
.term-row{
  display:grid;grid-template-columns:220px 1fr;gap:24px;
  padding:18px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.term-row:hover{background:var(--surface-3)}
.term-name{font-size:17px;font-weight:600;color:var(--green);line-height:1.7}
.term-name small{display:block;font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:.04em}
.term-desc{font-size:16px;line-height:1.85;color:var(--ink-2)}

/* ---------- 说明区块 ---------- */
.note-box{
  background:var(--surface-3);
  border:1px solid var(--line);
  border-radius:var(--r-14);
  padding:30px 28px;
}
.note-box h2{font-size:24px;line-height:1.4;font-weight:700;color:var(--green)}
.note-list{margin-top:18px;display:flex;flex-direction:column;gap:14px}
.note-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:16px;line-height:1.85;color:var(--ink-2);
}
.note-list li::before{
  content:"♥";flex:0 0 auto;font-size:12px;line-height:2.2;color:var(--gold);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--green-d);
  border-radius:var(--r-20);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:1.4;font-weight:700;color:#F7F3EA}
.cta-band p{margin-top:8px;font-size:15px;line-height:1.8;color:#C9BFA6;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-actions .btn-ghost{border-color:#C7A15A;color:#F7F3EA}
.cta-actions .btn-ghost:hover{background:#C7A15A;border-color:#C7A15A;color:var(--green-d)}

/* ---------- 页脚 ---------- */
.footer{background:var(--green-d);color:#C9BFA6;margin-top:88px;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer h3{
  font-size:15px;font-weight:700;color:#F7F3EA;letter-spacing:.02em;margin-bottom:16px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:#C7A15A;color:var(--green-d)}
.footer-brand-name{font-size:17px;font-weight:700;color:#F7F3EA;line-height:1.35}
.footer p{font-size:14px;line-height:1.85;color:#C9BFA6}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:#C9BFA6}
.footer-list a:hover{color:#F7F3EA;text-decoration:underline}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;line-height:1.7;color:#9C9C87;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  .nav-side{display:none}
  .mobile-bar{display:flex}
  .hero{padding:40px 0 44px}
  .hero h1{font-size:32px}
  .sec{padding:64px 0}
  .cta-band{padding:32px 28px}
  .footer{margin-top:64px;padding:56px 0 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .hero{padding:32px 0 36px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero .lede{font-size:16px;line-height:1.8}
  .sec{padding:48px 0}
  .sec-head h2{font-size:24px}
  .rule-grid{grid-template-columns:1fr;gap:16px}
  .split{grid-template-columns:1fr;gap:20px}
  .term-row{grid-template-columns:1fr;gap:6px;padding:16px 0}
  .cta-band{border-radius:var(--r-14);padding:26px 20px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .btn{padding:0 18px}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .rule-card{padding:22px 18px 20px}
  .note-box{padding:24px 20px}
  .figcaption{text-align:left}
}

/* roulang page: category3 */
:root{
  --green:#12433A;
  --green-d:#0A2A24;
  --green-l:#1E6A56;
  --red:#C2492F;
  --red-d:#A63A24;
  --gold:#C7A15A;
  --bg:#F7F3EA;
  --card:#FFFFFF;
  --surface:#EFE9DC;
  --surface-2:#FBF8F1;
  --ink:#1B2420;
  --ink-2:#4A564F;
  --ink-3:#7B857E;
  --line:#E3DCCB;
  --line-2:#D6CDB8;
  --ok:#2F7D5A;
  --warn:#B5822E;
  --err:#B3261E;
  --r-8:8px;--r-10:10px;--r-14:14px;--r-20:20px;--r-full:999px;
  --sh-1:0 1px 2px rgba(10,42,36,.06);
  --sh-2:0 6px 18px rgba(10,42,36,.08);
  --sh-3:0 18px 40px rgba(10,42,36,.10);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --num:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;line-height:1.35}
:focus-visible{outline:2px solid var(--red);outline-offset:2px;border-radius:4px}
::selection{background:rgba(194,73,47,.16)}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.sidebar{
  flex:0 0 236px;
  width:236px;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  background:var(--surface-2);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:26px;
}
.main{flex:1 1 auto;min-width:0}
.container{max-width:1180px;margin:0 auto;padding:0 32px;width:100%}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:flex-start;gap:10px;padding:2px 2px 0}
.brand-mark{
  flex:0 0 auto;
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--red);
  color:#FFF6F2;
  border-radius:9px;
  font-size:15px;
  line-height:1;
}
.brand-text{font-size:16px;font-weight:700;line-height:1.35;color:var(--green)}
.brand:hover .brand-text{color:var(--red)}

/* ---------- 侧栏导航 ---------- */
.nav-menu{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;
  display:block;
  padding:10px 12px 10px 14px;
  border-radius:var(--r-8);
  font-size:15px;
  color:var(--ink-2);
  cursor:pointer;
}
.nav-item:hover{background:#F1ECE0;color:var(--green)}
.nav-item.is-active{background:var(--surface);color:var(--green);font-weight:700}
.nav-item.is-active::before{
  content:"";
  position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:var(--red);border-radius:2px;
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:6px;padding-top:18px;border-top:1px solid var(--line)}
.side-foot-line{font-size:13px;color:var(--ink-2);margin:0;word-break:break-all}
.side-foot-note{font-size:12.5px;line-height:1.6;color:var(--ink-3);margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-10);
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--red);color:#fff;border-color:var(--red)}
.btn-primary:hover{background:var(--red-d);border-color:var(--red-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:var(--green);color:var(--bg);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--green);
  border-bottom:1px solid rgba(18,67,58,.22);
  padding-bottom:2px;
}
.link-arrow .arw{transition:transform .2s ease}
.link-arrow:hover{color:var(--red);border-color:var(--red)}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ---------- 顶栏（移动） ---------- */
.topbar{
  display:none;
  position:sticky;top:0;z-index:60;
  height:58px;
  align-items:center;justify-content:space-between;
  gap:12px;
  padding:0 16px;
  background:rgba(247,243,234,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-brand{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--green);min-width:0}
.topbar-brand .brand-mark{width:24px;height:24px;font-size:12px;border-radius:7px}
.hamburger{
  width:44px;height:44px;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--line-2);border-radius:var(--r-10);
  cursor:pointer;
}
.hamburger span{display:block;width:18px;height:1.8px;background:var(--green);border-radius:2px;transition:transform .2s ease}
.hamburger:active span:nth-child(1){transform:translateY(2px)}
.hamburger:active span:nth-child(3){transform:translateY(-2px)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:99;
  background:rgba(11,44,38,.55);
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:100;
  width:min(86vw,360px);
  background:var(--surface-2);
  border-left:1px solid var(--line);
  padding:18px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform .3s ease;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-10);
  border:1px solid var(--line-2);background:#fff;color:var(--ink-2);
  font-size:17px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--green);color:var(--green)}
body.no-scroll{overflow:hidden}

/* ---------- Hero ---------- */
.hero{padding:40px 0 44px}
.crumbs{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px}
.crumbs a:hover{color:var(--green)}
.crumbs .sep{color:var(--line-2)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;
  border-radius:var(--r-full);
  border:1px solid var(--gold);
  background:#FDFBF5;
  color:#8A6A2C;
  font-size:13px;font-weight:600;line-height:1;
}
.h1{font-size:30px;font-weight:700;line-height:1.28;margin:16px 0 0;color:var(--ink)}
.lead{font-size:17px;color:var(--ink-2);margin-top:16px;max-width:820px}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px;margin-top:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:26px;font-size:14px;color:var(--ink-2)}
.trust-row span{display:inline-flex;align-items:center;gap:8px}
.trust-row span::before{content:"♦";color:var(--gold);font-size:12px;line-height:1}
.gold-rule{width:64px;height:1px;background:var(--gold);border:0;margin:0}

/* ---------- 通用板块 ---------- */
.sec{padding:48px 0}
.sec-head{max-width:820px;margin-bottom:32px}
.h2{
  position:relative;
  font-size:24px;font-weight:700;line-height:1.35;
  padding-left:18px;margin:0 0 14px;color:var(--ink);
}
.h2::before{content:"";position:absolute;left:0;top:.44em;width:4px;height:16px;background:var(--red);border-radius:2px}
.h3{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:10px}
.sec-sub{font-size:16px;color:var(--ink-2);margin:0}
.text-block{font-size:16px;color:var(--ink-2)}
.text-block strong{color:var(--ink);font-weight:600}

/* ---------- 图文带 ---------- */
.media-band{display:grid;grid-template-columns:1.02fr 1fr;gap:32px;align-items:center}
.media-figure{margin:0}
.media-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-14);border:1px solid var(--line);background:var(--surface);
}
.media-figure figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.point-list{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.point-item{display:flex;gap:14px;align-items:flex-start;padding-bottom:16px;border-bottom:1px dashed var(--line-2)}
.point-item:last-child{border-bottom:0;padding-bottom:0}
.point-num{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:var(--r-8);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);color:var(--red);font-size:13px;font-weight:700;
  font-family:var(--num);
}
.point-item h4{font-size:16px;font-weight:600;margin-bottom:4px;color:var(--ink)}
.point-item p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.8}

/* ---------- 双栏：FAQ + 侧栏 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) 348px;gap:32px;align-items:start}
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-14);
  padding:24px 26px;
  margin-bottom:32px;
}
.panel .h3{margin-bottom:12px}
.panel p{font-size:16px;color:var(--ink-2);line-height:1.85}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 2px;
  font-size:17px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--green)}
.faq-item summary .faq-q{flex:1 1 auto;line-height:1.6}
.arrow{
  flex:0 0 auto;width:9px;height:9px;margin-top:8px;margin-right:4px;
  border-right:1.6px solid var(--ink-3);
  border-bottom:1.6px solid var(--ink-3);
  transform:rotate(45deg);
  transition:transform .25s ease,border-color .2s ease;
}
.faq-item[open] .arrow{transform:rotate(225deg);border-color:var(--red)}
.faq-a{padding:0 2px 20px;font-size:16px;color:var(--ink-2);line-height:1.85}
.faq-a p{margin:0 0 .7em}
.faq-a p:last-child{margin:0}

/* ---------- 侧栏信息卡 ---------- */
.side-stack{display:flex;flex-direction:column;gap:20px}
.sticky-card{position:sticky;top:24px}
.info-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-14);
  box-shadow:var(--sh-1);
  padding:24px;
}
.info-card .h3{font-size:18px;margin-bottom:14px}
.card-list{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}
.card-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;line-height:1.75;color:var(--ink-2);
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.card-list li:last-child{border-bottom:0;padding-bottom:0}
.card-list li::before{content:"♣";color:var(--gold);font-size:12px;line-height:1.9}
.info-note{
  font-size:13px;color:var(--ink-3);line-height:1.7;
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-2);
}
.contact-line{font-size:14px;color:var(--ink-2);margin-top:10px;word-break:break-all}
.contact-line a{color:var(--green);border-bottom:1px solid rgba(18,67,58,.25)}
.contact-line a:hover{color:var(--red);border-color:var(--red)}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.check-item{display:flex;gap:12px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--line-2)}
.check-mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:var(--r-full);
  background:rgba(194,73,47,.10);color:var(--red);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:4px;
}
.check-item h4{font-size:16px;font-weight:600;margin-bottom:4px}
.check-item p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.8}

/* ---------- 表单 ---------- */
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-20);
  box-shadow:var(--sh-1);
  padding:32px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field .hint{font-size:13px;color:var(--ink-3);line-height:1.6}
.input,.select,.textarea{
  width:100%;
  border:1px solid var(--line-2);
  border-radius:var(--r-10);
  background:#fff;
  height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 19px) 19px,calc(100% - 14px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px}
.textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.75;resize:vertical}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(18,67,58,.12)}
.field.is-error .input,.field.is-error .select,.field.is-error .textarea{border-color:var(--err);border-left:3px solid var(--err)}
.field .error-text{font-size:13px;color:var(--err);display:flex;align-items:center;gap:6px}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:24px}
.form-note{
  margin-top:18px;padding:14px 16px;
  border:1px solid var(--line);border-radius:var(--r-10);
  background:var(--surface-2);font-size:14px;color:var(--green);font-weight:500;
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--green-d);
  color:var(--bg);
  border-radius:var(--r-20);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band .cta-title{font-size:22px;font-weight:700;line-height:1.4;margin:0 0 8px;color:#FBF8F1}
.cta-band .cta-text{font-size:15px;color:rgba(247,243,234,.72);margin:0}
.cta-band .btn-primary{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.footer{background:var(--green-d);color:var(--bg);margin-top:72px;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h3{font-size:15px;font-weight:700;color:#FBF8F1;margin-bottom:14px;letter-spacing:.02em}
.footer-brand{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px}
.footer-brand .brand-mark{background:var(--red)}
.footer-brand span.txt{font-size:16px;font-weight:700;color:#FBF8F1;line-height:1.4}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(247,243,234,.68);margin:0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:#C9BFA6}
.footer-links a:hover{color:#F7F3EA;text-decoration:underline;text-underline-offset:3px}
.footer-links a.is-current{color:#F7F3EA;font-weight:600}
.footer-info{font-size:14px;line-height:1.9;color:#C9BFA6;margin:0}
.footer-info a{color:#C9BFA6}
.footer-info a:hover{color:#F7F3EA;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(247,243,234,.14);
  font-size:13px;color:rgba(247,243,234,.6);
}
.footer-bottom p{margin:0}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .hero{padding:56px 0 52px}
  .h1{font-size:40px}
  .sec{padding:88px 0}
  .h2{font-size:28px}
  .form-card{padding:40px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .split{grid-template-columns:1fr}
  .sticky-card{position:static}
  .media-band{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero{padding:30px 0 34px}
  .h1{font-size:28px}
  .h2{font-size:22px}
  .sec{padding:48px 0}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px 20px}
  .check-grid{grid-template-columns:1fr;gap:0}
  .cta-band{flex-direction:column;align-items:stretch;text-align:left;padding:28px 22px}
  .cta-band .btn-primary{width:100%}
  .footer{padding:44px 0 22px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr}
  .panel{padding:20px}
  .info-card{padding:20px}
  .hero-cta .btn{width:100%}
}