/* roulang page: index */
:root{
  --brand-900:#0E2F2A;
  --brand-700:#17544B;
  --brand-600:#1F6B5E;
  --brand-500:#2E8574;
  --accent-500:#C9873C;
  --accent-600:#A96C2A;
  --accent-100:#F6E7D2;
  --cta:#E0663F;
  --cta-hover:#C24E2A;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E1DACB;
  --ink-900:#1B2622;
  --ink-600:#4C5B55;
  --ink-400:#8A968F;
  --nav-w:232px;
  --r-card:14px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,47,42,.06);
  --sh-2:0 10px 28px -14px rgba(14,47,42,.30);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 侧边导航 ---------- */
.side-nav{display:none;}
.page-body{min-height:100vh;display:flex;flex-direction:column;}
@media(min-width:1024px){
  .side-nav{
    display:flex;flex-direction:column;justify-content:space-between;
    position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
    background:var(--brand-900);padding:30px 20px 24px;z-index:60;
    border-right:1px solid rgba(255,255,255,.06);
  }
  .page-body{margin-left:var(--nav-w);}
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{position:relative;flex:0 0 auto;width:26px;height:26px;border:2px solid var(--accent-500);border-radius:7px 7px 7px 0;}
.brand-mark::after{content:"";position:absolute;left:50%;top:5px;bottom:5px;width:2px;transform:translateX(-50%);background:var(--accent-500);}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.02em;color:#fff;line-height:1.4;}
.brand-text small{display:block;font-size:11px;font-weight:400;color:rgba(255,255,255,.55);letter-spacing:.08em;}
.side-menu{display:flex;flex-direction:column;gap:4px;margin-top:34px;}
.side-menu a{position:relative;display:block;padding:10px 12px 10px 18px;border-radius:8px;font-size:14.5px;color:rgba(255,255,255,.76);transition:background .2s ease,color .2s ease;}
.side-menu a:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-menu a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.side-menu a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:18px;background:var(--accent-500);border-radius:2px;}
.side-foot{border-top:1px solid rgba(255,255,255,.10);padding-top:18px;}
.btn-side{display:flex;align-items:center;justify-content:center;height:40px;border-radius:10px;background:var(--cta);color:#fff;font-size:14px;font-weight:600;transition:background .2s ease,transform .2s ease;}
.btn-side:hover{background:var(--cta-hover);transform:translateY(-1px);}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.55);}

/* ---------- 移动端顶栏 ---------- */
.top-bar{position:sticky;top:0;z-index:70;height:56px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);padding:0 16px;}
@media(min-width:1024px){.top-bar{display:none;}}
.top-bar .brand-mark{width:22px;height:22px;border-color:var(--brand-500);}
.top-bar .brand-mark::after{background:var(--brand-500);top:4px;bottom:4px;}
.top-bar .brand-text{font-size:15px;color:var(--brand-900);}
.top-bar .brand-text small{display:none;}
.nav-toggle{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--brand-900);cursor:pointer;}
.drawer{position:sticky;top:56px;z-index:65;background:#fff;border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .3s ease;}
.drawer.open{max-height:80vh;overflow-y:auto;}
.drawer a{display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;color:var(--ink-600);border-bottom:1px solid var(--surface-2);}
.drawer a.active{background:var(--accent-100);color:var(--accent-600);font-weight:600;}
@media(min-width:1024px){.drawer{display:none;}}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);display:flex;flex-direction:column;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,47,42,.97) 0%,rgba(14,47,42,.90) 40%,rgba(23,84,75,.58) 100%);}
.hero-body{position:relative;z-index:2;flex:1;display:flex;align-items:center;padding:64px 0 48px;}
@media(min-width:1024px){.hero-body{padding:88px 0 64px;}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid rgba(201,135,60,.55);background:rgba(201,135,60,.14);color:#F6E7D2;font-size:12.5px;font-weight:600;letter-spacing:.04em;}
.hero h1{margin-top:20px;font-size:27px;line-height:1.32;font-weight:700;color:#fff;max-width:760px;}
@media(min-width:640px){.hero h1{font-size:33px;}}
@media(min-width:1024px){.hero h1{font-size:40px;line-height:1.24;letter-spacing:.01em;}}
.hero-sub{margin-top:16px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.80);max-width:620px;}
@media(min-width:1024px){.hero-sub{font-size:17px;}}
.hero-btns{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-bar{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.16);background:rgba(14,47,42,.55);backdrop-filter:blur(4px);}
.hero-stats{display:grid;grid-template-columns:1fr;}
.hero-stat{padding:18px 0;}
.hero-stat + .hero-stat{border-top:1px solid rgba(255,255,255,.14);}
.hero-stat strong{display:block;font-size:16px;font-weight:600;color:#fff;}
.hero-stat span{display:block;margin-top:2px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.62);}
@media(min-width:768px){
  .hero-stats{grid-template-columns:repeat(3,1fr);}
  .hero-stat{padding:20px 26px;}
  .hero-stat:first-child{padding-left:0;}
  .hero-stat + .hero-stat{border-top:0;border-left:1px solid rgba(255,255,255,.14);}
}

/* ---------- 通用组件 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:background .2s ease,transform .2s ease,border-color .2s ease,color .2s ease;}
.btn-primary{background:var(--cta);color:#fff;}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px);}
.btn-outline{border-color:var(--brand-500);color:var(--brand-600);background:transparent;}
.btn-outline:hover{background:rgba(46,133,116,.10);}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;background:rgba(255,255,255,.07);}
.btn-ghost:hover{background:rgba(255,255,255,.16);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;}
.section{padding:56px 0;}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:var(--surface-2);}
.section-white{background:var(--surface);}
.section-head{max-width:760px;}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--accent-600);}
.section-title{margin-top:12px;font-size:23px;line-height:1.35;font-weight:700;color:var(--brand-900);}
@media(min-width:1024px){.section-title{font-size:28px;}}
.section-desc{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--ink-600);}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:1px solid rgba(201,135,60,.5);background:var(--accent-100);color:var(--accent-600);font-size:12.5px;font-weight:600;}
.badge{padding:4px 11px;border-radius:999px;background:rgba(46,133,116,.12);color:var(--brand-600);font-size:12.5px;font-weight:600;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;}
.card:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);}

/* ---------- 三步上手 ---------- */
.steps{position:relative;display:grid;grid-template-columns:1fr;gap:26px;margin-top:44px;}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:32px;}}
.step{position:relative;padding-left:0;}
.step-no{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--accent-500);color:#fff;font-size:17px;font-weight:700;}
.step h3{margin-top:16px;font-size:18px;font-weight:700;color:var(--brand-900);}
.step p{margin-top:8px;font-size:14.5px;line-height:1.85;color:var(--ink-600);max-width:320px;}
@media(min-width:768px){
  .step:not(:last-child)::after{content:"";position:absolute;top:20px;left:52px;right:-32px;border-top:2px dashed var(--line);}
}
@media(max-width:767px){
  .step{padding-left:56px;padding-bottom:24px;border-left:2px solid var(--line);margin-left:19px;}
  .step-no{position:absolute;left:-21px;top:0;}
  .step:last-child{padding-bottom:0;border-left-color:transparent;}
}

/* ---------- 案例 ---------- */
.case-row{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;}
.case-row + .case-row{margin-top:56px;}
@media(min-width:1024px){
  .case-row{grid-template-columns:1.04fr 1fr;gap:52px;}
  .case-row + .case-row{margin-top:72px;}
  .case-row-rev .case-media{order:2;}
}
.case-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--surface-2);}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.case-text h3{font-size:20px;font-weight:700;color:var(--brand-900);}
@media(min-width:1024px){.case-text h3{font-size:22px;}}
.case-text p{margin-top:14px;font-size:15.5px;line-height:1.9;color:var(--ink-600);}
.chips{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:28px;margin-top:8px;}
@media(min-width:1024px){.faq-wrap{grid-template-columns:340px 1fr;gap:56px;align-items:start;}}
.faq-aside h2{font-size:23px;line-height:1.35;font-weight:700;color:var(--brand-900);}
@media(min-width:1024px){
  .faq-aside{position:sticky;top:96px;}
  .faq-aside h2{font-size:28px;}
}
.faq-aside p{margin-top:14px;font-size:14.5px;line-height:1.85;color:var(--ink-600);}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;cursor:pointer;font-size:16px;font-weight:600;color:var(--brand-900);list-style:none;transition:background .2s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--surface-2);}
.faq-item summary .faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;}
.faq-item summary .faq-icon::before,
.faq-item summary .faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.faq-item summary .faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-item summary .faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item[open] summary .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-item[open] summary{background:#fff;}
.faq-answer{padding:0 22px 22px;font-size:15.5px;line-height:1.9;color:var(--ink-600);}

/* ---------- CTA 表单 ---------- */
.cta-block{position:relative;overflow:hidden;background:var(--brand-900);border-radius:20px;padding:36px 24px;}
@media(min-width:1024px){.cta-block{padding:56px 52px;}}
.cta-block::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(201,135,60,.24),transparent 68%);pointer-events:none;}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:center;}}
.cta-block h2{font-size:23px;line-height:1.35;font-weight:700;color:#fff;}
@media(min-width:1024px){.cta-block h2{font-size:30px;}}
.cta-block .cta-sub{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);}
.tick-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.tick-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.86);}
.tick-list i{flex:0 0 auto;margin-top:6px;width:16px;height:16px;border-radius:50%;background:var(--accent-500);color:#fff;font-size:9px;display:flex;align-items:center;justify-content:center;}
.apply-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:24px;}
@media(min-width:640px){.apply-form{padding:28px;}}
.field{margin-bottom:16px;}
.field label{display:block;margin-bottom:7px;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.82);}
.field input,.field select{width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);background:#fff;color:var(--ink-900);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;}
.field input::placeholder{color:var(--ink-400);}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(46,133,116,.28);}
.field.has-error input,.field.has-error select{border-color:var(--cta);}
.field .err{margin-top:6px;font-size:12px;color:#F09A80;}
.form-note{margin-top:14px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.55);}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-top:40px;}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:26px;}}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;}
.news-card:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-cover{position:relative;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;}
.news-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-body{display:flex;flex-direction:column;flex:1;padding:20px 22px 18px;}
.news-body h3{margin-top:12px;font-size:17.5px;line-height:1.5;font-weight:700;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--surface-2);font-size:13px;color:var(--ink-400);}
.news-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;}
.news-card:hover .news-arrow{color:var(--accent-600);}
@media(min-width:1024px){
  .news-card-wide{grid-column:span 2;flex-direction:row;}
  .news-card-wide .news-cover{flex:0 0 46%;aspect-ratio:auto;}
  .news-card-wide .news-body{padding:30px 30px 26px;}
  .news-card-wide .news-body h3{font-size:21px;}
  .news-card-wide .news-body p{font-size:15px;-webkit-line-clamp:3;}
}
.empty-state{border:1.5px dashed var(--line);border-radius:var(--r-card);background:var(--surface);padding:56px 24px;text-align:center;margin-top:40px;}
.empty-state i{font-size:28px;color:var(--ink-400);}
.empty-title{margin-top:16px;font-size:16px;font-weight:600;color:var(--ink-600);}
.empty-sub{margin-top:8px;font-size:14px;color:var(--ink-400);}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:auto;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:48px 0 36px;}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:40px;padding:64px 0 48px;}}
.foot-brand .brand-text{font-size:16px;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:330px;}
.foot-col h4{margin:0 0 16px;font-size:15px;font-weight:600;color:#fff;}
.foot-col li + li{margin-top:10px;}
.foot-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease,transform .2s ease;}
.foot-col a:hover{color:var(--accent-500);transform:translateX(2px);}
.foot-cta{margin-top:16px;display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 20px;border-radius:10px;border:1.5px solid rgba(255,255,255,.32);font-size:14px;font-weight:600;color:#fff;transition:background .2s ease,border-color .2s ease;}
.foot-cta:hover{background:rgba(255,255,255,.1);border-color:var(--accent-500);}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);}
.foot-bottom a:hover{color:var(--accent-500);}

/* roulang page: category1 */
:root{
  --brand-900:#0E2F2A;
  --brand-700:#17544B;
  --brand-600:#1F6B5E;
  --brand-500:#2E8574;
  --accent-500:#C9873C;
  --accent-600:#A96C2A;
  --accent-100:#F6E7D2;
  --cta:#E0663F;
  --cta-hover:#C24E2A;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E1DACB;
  --ink-900:#1B2622;
  --ink-600:#4C5B55;
  --ink-400:#8A968F;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,47,42,.06);
  --shadow-md:0 10px 28px -14px rgba(14,47,42,.30);
  --nav-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
input,select,textarea{width:100%}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

/* ===== 布局骨架 ===== */
.page{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.page > main{flex:1}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:84px 0}
.section--tight{padding:64px 0}
.section--alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1px;color:var(--accent-600);background:var(--accent-100);border-radius:999px;padding:5px 14px;margin-bottom:16px}
.section-head h2{font-size:27px;color:var(--ink-900)}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-600)}

/* ===== 左侧竖向导航 ===== */
.site-head{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--brand-900);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;
  z-index:60;overflow-y:auto;
}
.head-top{display:flex;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:26px;height:26px;flex:none;position:relative;
  border:2px solid var(--accent-500);
  border-radius:4px 4px 4px 1px;
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:5px;bottom:5px;width:2px;
  background:var(--accent-500);transform:translateX(-50%);
}
.brand-text{font-size:16.5px;font-weight:700;color:#fff;letter-spacing:.5px}
.side-menu{margin-top:30px;display:flex;flex-direction:column;gap:4px}
.side-menu a{
  position:relative;display:block;padding:12px 14px;border-radius:10px;
  font-size:15px;color:rgba(255,255,255,.8);
}
.side-menu a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-menu a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:600}
.side-menu a.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--accent-500);
}
.head-foot{margin-top:auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.12)}
.head-cta{
  display:flex;align-items:center;justify-content:center;height:40px;border-radius:10px;
  background:var(--cta);color:#fff;font-size:14.5px;font-weight:600;
}
.head-cta:hover{background:var(--cta-hover);transform:translateY(-1px)}
.head-foot p{margin-top:12px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.62)}
.menu-toggle{display:none;width:42px;height:42px;border:none;background:transparent;border-radius:10px;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== 分类页头 ===== */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:
    linear-gradient(100deg,rgba(14,47,42,.94) 0%,rgba(14,47,42,.80) 52%,rgba(23,84,75,.66) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:54px 0 48px;min-height:240px;display:flex;align-items:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 12px);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{font-size:13.5px;color:rgba(255,255,255,.72);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a:hover{color:var(--accent-500)}
.crumbs span{color:rgba(255,255,255,.45)}
.page-hero h1{margin-top:16px;font-size:38px;line-height:1.25;letter-spacing:.5px}
.page-hero .lede{margin-top:14px;max-width:760px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.84)}
.hero-tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  font-size:13px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.06);
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:all .2s ease;
}
.btn-primary{background:var(--cta);color:#fff}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{border-color:var(--brand-500);color:var(--brand-600);background:transparent}
.btn-ghost:hover{background:rgba(46,133,116,.10);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}

/* ===== 流程条 ===== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.flow-step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:66px 22px 24px;box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.flow-step:hover{border-color:var(--brand-500);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.flow-step:not(:last-child)::after{
  content:"";position:absolute;top:37px;right:-24px;width:24px;border-top:2px dashed var(--brand-500);opacity:.5;
}
.step-num{
  position:absolute;top:20px;left:22px;
  display:inline-flex;align-items:center;justify-content:center;
  height:34px;padding:0 18px;border-radius:999px;
  background:var(--accent-500);color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
}
.flow-step h3{font-size:18.5px;color:var(--ink-900)}
.flow-step p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-600)}

/* ===== 正文区块 ===== */
.reading{max-width:820px}
.reading h2{font-size:26px;margin-bottom:20px}
.reading p{font-size:17px;line-height:1.9;color:var(--ink-600);margin-bottom:18px}
.reading p strong{color:var(--ink-900);font-weight:600}
.point-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;margin:30px 0 8px;padding:0}
.point-list li{
  position:relative;padding:14px 16px 14px 44px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  font-size:15.5px;line-height:1.75;color:var(--ink-600);box-shadow:var(--shadow-sm);
}
.point-list li::before{
  content:"✓";position:absolute;left:14px;top:14px;
  width:20px;height:20px;border-radius:50%;
  background:rgba(46,133,116,.14);color:var(--brand-600);
  font-size:12px;line-height:20px;text-align:center;font-weight:700;
}
.supplement{
  margin-top:44px;display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:32px;box-shadow:var(--shadow-sm);
}
.supplement img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--surface-2)}
.supplement h3{font-size:20px;margin-bottom:12px}
.supplement p{font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.supplement .mini{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px}
.supplement .mini span{
  font-size:13px;padding:5px 12px;border-radius:999px;
  border:1px solid var(--accent-500);color:var(--accent-600);background:var(--accent-100);
}

/* ===== 场景卡 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-sm);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.scene-card:hover{border-color:var(--brand-500);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.scene-icon{
  width:38px;height:38px;border-radius:10px;border:1.5px solid var(--brand-500);
  position:relative;margin-bottom:18px;
}
.scene-icon::before{content:"";position:absolute;left:50%;top:9px;bottom:9px;width:1.5px;background:var(--brand-500);transform:translateX(-50%)}
.scene-icon::after{content:"";position:absolute;top:50%;left:9px;right:9px;height:1.5px;background:var(--brand-500);transform:translateY(-50%)}
.scene-card h3{font-size:18px;margin-bottom:10px}
.scene-card p{font-size:15px;line-height:1.8;color:var(--ink-600)}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:36px}
.faq-aside h2{font-size:26px;margin-bottom:14px}
.faq-aside p{font-size:15.5px;color:var(--ink-600)}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  position:relative;flex:none;width:22px;height:22px;border-radius:50%;
  border:1.5px solid var(--brand-500);transition:transform .25s ease,background-color .25s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);
  transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:10px;height:1.5px}
.faq-item summary .plus::after{width:1.5px;height:10px}
.faq-item[open] summary .plus{transform:rotate(90deg);background:rgba(46,133,116,.1)}
.faq-item[open] summary{border-bottom:1px solid var(--line)}
.faq-body{padding:18px 22px 22px;font-size:16px;line-height:1.85;color:var(--ink-600)}

/* ===== 互链四宫格 ===== */
.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.link-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.link-card:hover{border-color:var(--brand-500);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.link-card .tag{font-size:12.5px;font-weight:600;color:var(--brand-600);background:rgba(46,133,116,.12);border-radius:999px;padding:4px 12px;display:inline-block}
.link-card h3{margin-top:14px;font-size:17px}
.link-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-400)}
.link-card .go{margin-top:16px;display:inline-block;font-size:14px;color:var(--brand-600);font-weight:600}
.link-card:hover .go{color:var(--accent-600)}

/* ===== CTA 条 ===== */
.cta-band{
  background:var(--brand-900);border-radius:20px;padding:48px 44px;color:#fff;
  display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:26px;color:#fff}
.cta-band p{margin-top:14px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78)}
.cta-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-list li{position:relative;padding-left:26px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-list li::before{
  content:"";position:absolute;left:0;top:11px;width:12px;height:7px;
  border-left:2px solid var(--accent-500);border-bottom:2px solid var(--accent-500);
  transform:rotate(-45deg);
}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:26px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;color:rgba(255,255,255,.75);margin-bottom:8px}
.field input,.field select{
  height:44px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:15px;
}
.field input::placeholder{color:rgba(255,255,255,.45)}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(46,133,116,.45)}
.field select option{color:var(--ink-900)}
.cta-form .btn{width:100%;margin-top:8px}
.form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.7}

/* ===== 页脚 ===== */
.site-foot{background:var(--brand-900);color:#fff;padding:72px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col ul a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block}
.foot-col ul a:hover{color:var(--accent-500);transform:translateX(2px)}
.foot-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border-radius:10px;border:1.5px solid var(--accent-500);color:var(--accent-500);
  font-size:14.5px;font-weight:600;margin-top:6px;
}
.foot-cta:hover{background:rgba(201,135,60,.14);transform:translateY(-1px)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.foot-bottom a:hover{color:var(--accent-500)}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .flow{grid-template-columns:repeat(2,1fr);gap:20px}
  .flow-step:nth-child(2)::after{display:none}
}
@media (max-width:1023px){
  .page{margin-left:0}
  .site-head{
    position:sticky;top:0;left:auto;bottom:auto;width:100%;height:56px;
    padding:0 16px;flex-direction:row;align-items:center;justify-content:space-between;
    background:#fff;border-bottom:1px solid var(--line);overflow:visible;
  }
  .site-head .brand-text{color:var(--ink-900)}
  .menu-toggle{display:inline-flex}
  .side-menu{
    position:fixed;top:56px;left:0;right:0;margin:0;padding:8px 12px 14px;
    background:#fff;border-bottom:1px solid var(--line);display:none;
    flex-direction:column;gap:2px;max-height:80vh;overflow-y:auto;
    box-shadow:0 18px 30px -20px rgba(14,47,42,.45);
  }
  .side-menu.open{display:flex}
  .side-menu a{min-height:48px;display:flex;align-items:center;color:var(--ink-900);border-radius:8px;font-size:15.5px}
  .side-menu a.active{background:var(--accent-100);color:var(--accent-600)}
  .side-menu a.active::before{display:none}
  .head-foot{display:none}
  .section{padding:60px 0}
  .section--tight{padding:48px 0}
  .page-hero{padding:44px 0 40px}
  .page-hero h1{font-size:31px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .supplement{grid-template-columns:1fr;gap:24px;padding:24px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .link-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .section{padding:52px 0}
  .section--tight{padding:44px 0}
  .page-hero{min-height:200px;padding:36px 0 34px}
  .page-hero h1{font-size:26px}
  .page-hero .lede{font-size:15.5px}
  .flow{grid-template-columns:1fr;gap:16px}
  .flow-step{padding:62px 20px 22px}
  .flow-step::after{display:none}
  .point-list{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:30px 22px;border-radius:16px}
  .section-head h2{font-size:23px}
  .reading h2{font-size:22px}
  .reading p{font-size:16.5px}
  .btn{width:100%}
  .btn-inline{width:auto}
}

/* roulang page: article */
:root{
  --brand-900:#0E2F2A;
  --brand-700:#17544B;
  --brand-600:#1F6B5E;
  --brand-500:#2E8574;
  --accent-500:#C9873C;
  --accent-600:#A96C2A;
  --accent-100:#F6E7D2;
  --cta:#E0663F;
  --cta-hover:#C24E2A;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E1DACB;
  --ink-900:#1B2622;
  --ink-600:#4C5B55;
  --ink-400:#8A968F;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(14,47,42,.06);
  --shadow-md:0 10px 28px -14px rgba(14,47,42,.30);
  --nav-w:232px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);}
button,input,select,textarea{font:inherit;color:inherit;}
.tnum{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ============ 品牌 ============ */
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  position:relative;flex:none;width:28px;height:28px;
  border-radius:9px 9px 9px 2px;
  background:linear-gradient(140deg,var(--accent-500),var(--brand-500));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:6px;bottom:6px;width:2px;
  transform:translateX(-50%);background:rgba(255,255,255,.9);border-radius:2px;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.5px;color:#fff;}

/* ============ 桌面侧栏导航 ============ */
.side-nav{
  display:none;
  position:fixed;left:0;top:0;width:var(--nav-w);height:100vh;
  background:var(--brand-900);
  padding:26px 18px 22px;
  flex-direction:column;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.side-nav::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(201,135,60,.55),rgba(201,135,60,0) 60%);
}
.side-tag{
  margin:12px 0 0;font-size:12.5px;line-height:1.7;
  color:rgba(255,255,255,.5);letter-spacing:.4px;
}
.side-menu{display:flex;flex-direction:column;gap:4px;margin-top:26px;}
.side-menu a{
  position:relative;display:block;
  padding:11px 12px 11px 20px;border-radius:10px;
  font-size:14.5px;color:rgba(255,255,255,.8);
  transition:background .2s,color .2s,transform .2s;
}
.side-menu a:hover{background:rgba(255,255,255,.07);color:#fff;transform:translateX(2px);}
.side-menu a.active{background:rgba(255,255,255,.08);color:#fff;}
.side-menu a.active::before{
  content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--accent-500);
}
.side-menu a:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.side-bottom{margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);}
.side-cta{
  display:flex;align-items:center;justify-content:center;height:40px;
  border-radius:10px;font-size:14px;font-weight:600;
  background:rgba(224,102,63,.95);color:#fff;
  transition:background .2s,transform .2s;
}
.side-cta:hover{background:var(--cta-hover);transform:translateY(-1px);}
.side-note{margin:12px 0 0;font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.6;}

/* ============ 移动端导航 ============ */
.mobile-bar{
  position:sticky;top:0;z-index:60;height:56px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-bar .brand-text{color:var(--ink-900);font-size:16px;}
.mobile-bar .brand-mark{width:24px;height:24px;border-radius:8px 8px 8px 2px;}
.nav-toggle{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;display:flex;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;cursor:pointer;transition:border-color .2s,background .2s;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .25s,opacity .2s;}
.nav-toggle:hover{border-color:var(--brand-500);background:#fafaf7;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;position:sticky;top:56px;z-index:55;
  background:#fff;border-bottom:1px solid var(--line);
  max-height:80vh;overflow:auto;
  box-shadow:0 18px 32px -22px rgba(14,47,42,.4);
}
.mobile-drawer.open{display:block;}
.mobile-drawer .side-menu{margin:8px 0;padding:0 12px;gap:0;}
.mobile-drawer .side-menu a{
  color:var(--ink-900);font-size:15px;min-height:48px;
  display:flex;align-items:center;border-radius:10px;padding:0 16px;
}
.mobile-drawer .side-menu a:hover{transform:none;background:#f4f1ea;}
.mobile-drawer .side-menu a.active{background:var(--accent-100);color:var(--accent-600);}
.mobile-drawer .side-menu a.active::before{display:none;}

/* ============ 页面头 ============ */
.page-head{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:34px 0 26px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);}
.crumbs a{transition:color .2s;}
.crumbs a:hover{color:var(--brand-600);}
.crumbs .sep{color:var(--line);}
.crumbs .current{max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-600);}
.page-title{
  font-size:38px;line-height:1.25;letter-spacing:-.4px;
  margin:16px 0 14px;max-width:940px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-400);}
.meta-sep{color:var(--line);}

/* ============ 封面 ============ */
.cover-band{padding:32px 0 0;}
.cover-fig{
  position:relative;margin:0;overflow:hidden;border-radius:var(--radius);
  background:var(--surface-2);aspect-ratio:21/9;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.cover-fig img{width:100%;height:100%;object-fit:cover;}
.cover-fig figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:13px;color:rgba(255,255,255,.9);
  background:linear-gradient(180deg,rgba(14,47,42,0),rgba(14,47,42,.78));
}

/* ============ 正文布局 ============ */
.article-section{padding:48px 0 8px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;align-items:start;}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-600);
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:24px;line-height:1.3;margin:36px 0 12px;color:var(--ink-900);
  padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:3px;background:var(--accent-500);
}
.article-body h3{font-size:20px;line-height:1.45;margin:28px 0 10px;color:var(--ink-900);}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--accent-500);}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  border-left:3px solid var(--accent-500);
  background:var(--surface-2);border-radius:0 12px 12px 0;
  color:var(--ink-600);
}
.article-body img{border-radius:12px;margin:24px 0;width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;border-radius:12px;overflow:hidden;}
.article-body th{background:var(--brand-700);color:#fff;text-align:left;padding:12px 14px;font-weight:600;}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:var(--surface-2);}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;transition:color .2s;}
.article-body a:hover{color:var(--accent-600);}
.article-body strong{color:var(--ink-900);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  max-width:760px;border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--surface);padding:56px 28px;text-align:center;
}
.empty-state .empty-title{font-size:20px;font-weight:700;color:var(--ink-900);margin:0 0 10px;}
.empty-state p{color:var(--ink-600);font-size:15px;margin:0 0 22px;}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:box-shadow .25s,border-color .25s;
}
.side-card:hover{border-color:var(--brand-500);box-shadow:var(--shadow-md);}
.side-card h3{font-size:16px;margin-bottom:12px;}
.side-card p{font-size:13.5px;line-height:1.85;color:var(--ink-600);margin:0 0 14px;}
.side-links li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;font-size:14px;color:var(--ink-600);
  border-bottom:1px dashed var(--line);transition:color .2s,transform .2s;
}
.side-links li:last-child a{border-bottom:0;}
.side-links li a:hover{color:var(--brand-600);transform:translateX(3px);}
.side-links li a::after{content:"→";color:var(--accent-500);font-size:13px;}
.side-cta-card{background:var(--brand-900);border-color:var(--brand-900);}
.side-cta-card h3{color:#fff;}
.side-cta-card p{color:rgba(255,255,255,.7);}
.side-cta-card:hover{border-color:var(--accent-500);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .2s,color .2s,transform .2s,border-color .2s,box-shadow .2s;
}
.btn-primary{background:var(--cta);color:#fff;box-shadow:0 8px 20px -12px rgba(224,102,63,.9);}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px);}
.btn-ghost{border-color:var(--brand-500);color:var(--brand-600);background:transparent;}
.btn-ghost:hover{background:rgba(46,133,116,.10);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-700);}
.btn-light:hover{background:var(--accent-100);transform:translateY(-1px);}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ 相关推荐 ============ */
.related-section{padding:64px 0 8px;border-top:1px solid var(--line);margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px;}
.section-head h2{font-size:26px;line-height:1.3;}
.section-head p{margin:8px 0 0;font-size:14.5px;color:var(--ink-400);}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--brand-500);box-shadow:var(--shadow-md);}
.rel-thumb{aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(46,133,116,.12);color:var(--brand-600);
}
.rel-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-body p{font-size:13.5px;line-height:1.8;color:var(--ink-400);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-400);border-top:1px solid var(--line);padding-top:12px;}
.rel-foot .more{color:var(--brand-600);font-weight:600;}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}

/* ============ CTA ============ */
.cta-band{padding:72px 0 80px;}
.cta-box{
  background:var(--brand-900);border-radius:20px;padding:48px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;
  align-items:center;position:relative;overflow:hidden;
}
.cta-box::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,135,60,.28),rgba(201,135,60,0) 70%);
}
.cta-copy h2{color:#fff;font-size:26px;line-height:1.35;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;margin:0 0 18px;}
.cta-points{display:flex;flex-direction:column;gap:10px;}
.cta-points li{position:relative;padding-left:26px;font-size:14.5px;color:rgba(255,255,255,.85);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:8px;
  border-left:2px solid var(--accent-500);border-bottom:2px solid var(--accent-500);
  transform:rotate(-45deg);border-radius:1px;
}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-foot{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:8px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:340px;}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul li a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s,transform .2s;display:inline-block;}
.foot-col ul li a:hover{color:var(--accent-500);transform:translateX(2px);}
.foot-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 18px;margin-top:14px;border-radius:10px;
  background:var(--cta);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s,transform .2s;
}
.foot-cta:hover{background:var(--cta-hover);transform:translateY(-1px);}
.foot-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}
.foot-bottom a{transition:color .2s;}
.foot-bottom a:hover{color:var(--accent-500);}

@media (max-width:1023px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-box{grid-template-columns:1fr;padding:36px;}
  .page-title{font-size:30px;}
  .article-body{font-size:16.5px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .page-head{padding:24px 0 20px;}
  .page-title{font-size:26px;margin:14px 0 12px;}
  .cover-band{padding:22px 0 0;}
  .cover-fig{aspect-ratio:16/9;border-radius:12px;}
  .article-section{padding:32px 0 8px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin:28px 0 10px;}
  .article-body h3{font-size:18px;margin:22px 0 8px;}
  .related-section{padding:44px 0 8px;margin-top:40px;}
  .section-head h2{font-size:22px;}
  .rel-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{padding:48px 0 56px;}
  .cta-box{padding:28px 22px;border-radius:16px;}
  .cta-copy h2{font-size:21px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .back-row .btn{width:100%;}
}
@media (min-width:1024px){
  body{padding-left:var(--nav-w);}
  .side-nav{display:flex;}
  .mobile-bar{display:none;}
  .mobile-drawer{display:none !important;}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;}
  .article-side{position:sticky;top:28px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0E2F2A;
  --brand-700:#17544B;
  --brand-600:#1F6B5E;
  --brand-500:#2E8574;
  --accent-500:#C9873C;
  --accent-600:#A96C2A;
  --accent-100:#F6E7D2;
  --cta:#E0663F;
  --cta-hover:#C24E2A;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E1DACB;
  --ink-900:#1B2622;
  --ink-600:#4C5B55;
  --ink-400:#8A968F;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(14,47,42,.06);
  --shadow-2:0 10px 28px -14px rgba(14,47,42,.30);
}
body.site{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.site *,
body.site *::before,
body.site *::after{box-sizing:border-box;}
body.site a{color:inherit;text-decoration:none;}
body.site img{max-width:100%;height:auto;display:block;}
body.site p{margin:0;}
body.site ul{margin:0;padding:0;list-style:none;}
body.site h1,body.site h2,body.site h3,body.site h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
body.site button{font:inherit;border:0;background:none;cursor:pointer;}
body.site a:focus-visible,
body.site button:focus-visible,
body.site summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;}
body.site .container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
body.site .num{font-variant-numeric:tabular-nums;}

/* ============ 左侧竖向导航 ============ */
.side-panel{
  position:fixed;
  top:0;left:0;bottom:0;
  width:232px;
  background:var(--brand-900);
  display:flex;
  flex-direction:column;
  padding:26px 18px 22px;
  z-index:60;
  overflow-y:auto;
}
.side-panel .brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:28px;height:28px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--accent-500),var(--cta));
  clip-path:polygon(0 0,70% 0,100% 30%,100% 100%,0 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:6px;bottom:6px;width:2px;
  transform:translateX(-50%);background:rgba(255,255,255,.92);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;color:#fff;white-space:nowrap;}
.side-menu{display:flex;flex-direction:column;gap:4px;margin-top:30px;}
.side-menu a{
  display:block;
  padding:11px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.80);
  position:relative;
  transition:background .18s ease,color .18s ease;
}
.side-menu a:hover{background:rgba(255,255,255,.07);color:#fff;}
.side-menu a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.side-menu a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--accent-500);
}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  height:40px;border-radius:10px;
  background:var(--cta);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.side-cta:hover{background:var(--cta-hover);transform:translateY(-1px);}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.55);}

.site-body{margin-left:232px;min-height:100vh;display:flex;flex-direction:column;}

/* ============ 移动端导航 ============ */
.mobile-bar{display:none;}
.drawer{display:none;}

@media (max-width:1023px){
  .side-panel{display:none;}
  .site-body{margin-left:0;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;z-index:80;height:56px;padding:0 20px;
    background:#fff;border-bottom:1px solid var(--line);
  }
  .mobile-bar .brand{display:flex;align-items:center;gap:9px;}
  .mobile-bar .brand-text{color:var(--ink-900);font-size:15.5px;}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    height:34px;padding:0 14px;border-radius:8px;
    border:1.5px solid var(--brand-500);color:var(--brand-600);
    font-size:14px;font-weight:600;background:#fff;
  }
  .nav-toggle:hover{background:rgba(46,133,116,.10);}
  .drawer{
    display:block;position:sticky;top:56px;z-index:79;
    max-height:0;overflow:hidden;background:#fff;
    border-bottom:1px solid transparent;
    transition:max-height .28s ease;
  }
  .drawer.open{max-height:80vh;overflow-y:auto;border-bottom-color:var(--line);}
  .drawer a{
    display:block;height:48px;line-height:48px;padding:0 20px;
    font-size:15px;color:var(--ink-600);border-top:1px solid var(--line);
  }
  .drawer a.active{background:var(--accent-100);color:var(--accent-600);font-weight:600;}
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:246px;display:flex;align-items:center;
  padding:44px 0;
  background:linear-gradient(118deg,var(--brand-900),var(--brand-700));
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 13px);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px;}
.crumb a{transition:color .18s ease;}
.crumb a:hover{color:var(--accent-100);}
.crumb .sep{color:rgba(255,255,255,.4);}
.crumb .cur{color:#fff;}
.page-hero h1{
  color:#fff;font-size:clamp(26px,3vw,38px);font-weight:700;
  letter-spacing:-.02em;max-width:860px;
}
.hero-sub{margin-top:14px;max-width:660px;font-size:15.5px;color:rgba(255,255,255,.84);}

/* ============ 板块 ============ */
.section{padding:80px 0;}
.section--white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--tone{background:var(--surface-2);border-top:1px solid var(--line);}
.section--tight{padding:56px 0;}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--accent-600);
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}
.sec-title{margin-top:12px;font-size:clamp(22px,2.4vw,28px);color:var(--ink-900);}
.sec-desc{margin-top:14px;font-size:15.5px;color:var(--ink-600);max-width:720px;}

.prose-block{max-width:820px;}
.prose-block p{font-size:16.5px;line-height:1.9;color:var(--ink-600);margin-bottom:18px;}
.prose-block p:last-child{margin-bottom:0;}

.point-list{margin-top:28px;display:grid;gap:12px;max-width:860px;}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 18px;background:var(--surface);
  border:1px solid var(--line);border-radius:12px;
  font-size:15px;color:var(--ink-600);
  box-shadow:var(--shadow-1);
}
.point-list li::before{
  content:"";flex:0 0 auto;margin-top:11px;
  width:7px;height:7px;border-radius:2px;background:var(--accent-500);
}

/* ============ 对照表 ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;background:var(--surface);box-shadow:var(--shadow-1);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th{
  background:var(--brand-700);color:#fff;font-size:15px;font-weight:600;
  text-align:left;padding:15px 20px;white-space:nowrap;
}
.compare-table td{
  padding:15px 20px;font-size:15px;color:var(--ink-600);
  border-top:1px solid var(--line);vertical-align:top;line-height:1.8;
}
.compare-table tbody tr:nth-child(even){background:var(--surface-2);}
.compare-table td:first-child{color:var(--ink-900);font-weight:600;white-space:nowrap;}
.compare-table td.num-col{font-variant-numeric:tabular-nums;}

.point-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px;}
.point-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 22px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.point-card:hover{box-shadow:var(--shadow-2);border-color:var(--brand-500);transform:translateY(-3px);}
.point-card .tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  color:var(--accent-600);background:var(--accent-100);
  border-radius:999px;padding:4px 12px;
}
.point-card h3{margin-top:14px;font-size:18px;color:var(--ink-900);}
.point-card p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* ============ 场景差异 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.scene-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:var(--brand-500);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2);}
.scene-body{padding:22px;}
.scene-body h3{font-size:18px;color:var(--ink-900);}
.scene-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--brand-500);box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-body{padding:0 22px 20px;font-size:15.5px;line-height:1.9;color:var(--ink-600);}

/* ============ CTA + 互链 ============ */
.cta-band{
  background:var(--brand-900);border-radius:20px;
  padding:40px 44px;display:flex;align-items:center;
  justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,135,60,.30),transparent 68%);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-band h2{color:#fff;font-size:clamp(21px,2.3vw,26px);}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-primary{background:var(--cta);color:#fff;}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px);}
.btn-ghost{border-color:var(--brand-500);color:var(--brand-600);}
.btn-ghost:hover{background:rgba(46,133,116,.10);transform:translateY(-1px);}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.38);}
.btn-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none;}

.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px;}
.link-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 20px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.link-card .idx{font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--accent-600);}
.link-card h3{margin-top:10px;font-size:17px;color:var(--ink-900);}
.link-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-600);}
.link-card.is-current{border-color:var(--brand-500);background:linear-gradient(180deg,rgba(46,133,116,.07),transparent 60%);}
.link-card.is-current .idx::after{content:" · 当前";color:var(--brand-600);}
.back-row{margin-top:34px;display:flex;justify-content:center;}

/* ============ 页脚 ============ */
.site-foot{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.foot-brand .brand{display:flex;align-items:center;gap:10px;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.foot-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.foot-col ul{display:grid;gap:2px;}
.foot-col ul li a{
  display:inline-block;padding:4px 0;font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .18s ease,transform .18s ease;
}
.foot-col ul li a:hover{color:var(--accent-500);transform:translateX(2px);}
.foot-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;margin-top:14px;border-radius:10px;
  background:var(--cta);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.foot-cta:hover{background:var(--cta-hover);transform:translateY(-1px);}
.foot-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 24px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}
.foot-bottom a{transition:color .18s ease;}
.foot-bottom a:hover{color:var(--accent-500);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px;}
}
@media (max-width:1023px){
  body.site .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .sec-head{margin-bottom:28px;}
  .point-cards{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .link-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:32px 28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:640px){
  body.site .container{padding:0 20px;}
  .page-hero{min-height:210px;padding:36px 0;}
  .section{padding:48px 0;}
  .point-cards{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .link-grid{grid-template-columns:1fr;}
  .compare-table th,.compare-table td{padding:12px 14px;font-size:14px;white-space:normal;}
  .compare-table td:first-child{white-space:normal;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-brand p{max-width:none;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0E2F2A;
  --brand-700:#17544B;
  --brand-600:#1F6B5E;
  --brand-500:#2E8574;
  --accent-500:#C9873C;
  --accent-600:#A96C2A;
  --accent-100:#F6E7D2;
  --cta:#E0663F;
  --cta-hover:#C24E2A;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E1DACB;
  --ink-900:#1B2622;
  --ink-600:#4C5B55;
  --ink-400:#8A968F;
  --r-card:14px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(14,47,42,.06);
  --shadow-2:0 10px 28px -14px rgba(14,47,42,.30);
  --sidebar-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

/* 容器 */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* 左侧竖向导航 */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--brand-900);
  display:flex;flex-direction:column;
  padding:24px 18px 20px;z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;position:relative;
  background:linear-gradient(140deg,var(--accent-500),var(--accent-600));
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  border-radius:4px;
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:2px;height:17px;background:rgba(255,255,255,.9);border-radius:2px;
}
.brand-text{font-size:16px;font-weight:700;color:#fff;letter-spacing:.5px;line-height:1.2}
.side-menu{margin-top:30px;display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.side-menu a{
  display:block;padding:11px 14px;border-radius:10px;
  font-size:15px;color:rgba(255,255,255,.8);
  border-left:3px solid transparent;transition:background .2s,color .2s,border-color .2s;
}
.side-menu a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-menu a.active{background:rgba(255,255,255,.08);color:#fff;border-left-color:var(--accent-500)}
.side-foot{border-top:1px solid rgba(255,255,255,.12);padding-top:16px;margin-top:16px}
.side-btn{
  display:flex;align-items:center;justify-content:center;height:40px;
  border-radius:10px;background:var(--cta);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s,transform .2s;
}
.side-btn:hover{background:var(--cta-hover);transform:translateY(-1px)}
.side-note{margin-top:12px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.55)}

/* 移动端顶栏与抽屉 */
.mobile-bar{
  position:sticky;top:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;
  height:56px;padding:0 20px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-bar .brand-text{color:var(--ink-900);font-size:15.5px}
.nav-toggle{
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 13px;border-radius:10px;border:1.5px solid var(--line);
  background:#fff;color:var(--brand-700);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .2s,background .2s;
}
.nav-toggle:hover{border-color:var(--brand-500);background:rgba(46,133,116,.08)}
.drawer{
  position:sticky;top:56px;z-index:65;
  max-height:0;overflow:hidden;background:var(--brand-900);
  transition:max-height .32s ease;
}
.drawer.open{max-height:80vh;overflow-y:auto}
.drawer .side-menu{padding:14px 18px 22px;flex:none}
.drawer .side-menu a{min-height:48px;display:flex;align-items:center}
.drawer .side-menu a.active{background:var(--accent-100);color:var(--accent-600);border-left-color:var(--accent-600)}

/* 页面主体 */
.page{min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

/* 页头 */
.banner{
  position:relative;overflow:hidden;
  min-height:250px;display:flex;align-items:flex-end;
  background-image:linear-gradient(95deg,rgba(14,47,42,.94) 0%,rgba(14,47,42,.78) 55%,rgba(23,84,75,.66) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.banner::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 16px);
  pointer-events:none;
}
.banner .container{position:relative;z-index:2;padding-top:38px;padding-bottom:30px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:12px}
.crumb a{color:rgba(255,255,255,.72);transition:color .2s}
.crumb a:hover{color:var(--accent-500)}
.crumb span{color:rgba(255,255,255,.45)}
.banner h1{color:#fff;font-size:clamp(26px,3.2vw,38px);line-height:1.28;max-width:880px}
.banner-sub{margin-top:14px;font-size:16px;color:rgba(255,255,255,.82);max-width:720px}
.banner-tags{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px}
.banner-tags .tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.07);
}

/* 板块 */
.sec{padding:76px 0}
.sec--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:38px}
.sec-head h2{font-size:clamp(22px,2.4vw,27px);color:var(--ink-900)}
.sec-head p{margin-top:12px;font-size:16px;color:var(--ink-600)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;color:var(--brand-600);letter-spacing:.6px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px}

/* 数据卡 */
.stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:38px}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-1);transition:box-shadow .25s,transform .25s,border-color .25s;
}
.stat-card:hover{box-shadow:var(--shadow-2);border-color:var(--brand-500);transform:translateY(-2px)}
.stat-card .stat-num{font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.2}
.stat-card .stat-num small{font-size:14px;font-weight:600;color:var(--ink-400);margin-left:4px}
.stat-card h3{margin-top:10px;font-size:17px;color:var(--ink-900)}
.stat-card p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-600)}

/* 要点列表 + 配图 */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.point-list{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.point{display:flex;gap:16px;padding-bottom:18px;border-bottom:1px dashed var(--line)}
.point:last-child{border-bottom:none;padding-bottom:0}
.point-idx{
  flex:0 0 36px;width:36px;height:36px;border-radius:10px;
  background:var(--accent-100);color:var(--accent-600);
  display:flex;align-items:center;justify-content:center;font-size:14.5px;font-weight:700;
}
.point h3{font-size:17.5px;color:var(--ink-900)}
.point p{margin-top:6px;font-size:15px;line-height:1.85;color:var(--ink-600)}
.figure-box{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface-2);box-shadow:var(--shadow-1)}
.figure-box img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2}
.figure-cap{margin-top:12px;font-size:13px;color:var(--ink-400)}

/* 图文交错卡 */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.media-row + .media-row{margin-top:64px;padding-top:64px;border-top:1px solid var(--line)}
.media-row--rev .media-fig{order:2}
.media-fig{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.media-fig img{width:100%;aspect-ratio:3/2;object-fit:cover}
.media-body h3{font-size:21px;color:var(--ink-900)}
.media-body .badge{margin-top:14px}
.media-body p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.mini-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-600)}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);transform:rotate(45deg);
}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:rgba(46,133,116,.12);color:var(--brand-600);
}
.badge--amber{border:1px solid var(--accent-500);background:var(--accent-100);color:var(--accent-600)}

/* 核验表格 */
.table-wrap{overflow-x:auto;border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface)}
table.verify{width:100%;border-collapse:collapse;min-width:640px}
table.verify thead th{
  background:var(--brand-700);color:#fff;font-size:14.5px;font-weight:600;
  text-align:left;padding:15px 20px;white-space:nowrap;
}
table.verify tbody td{
  padding:16px 20px;font-size:15px;color:var(--ink-600);
  border-top:1px solid var(--line);vertical-align:top;
}
table.verify tbody td:first-child{color:var(--ink-900);font-weight:600;white-space:nowrap}
table.verify tbody tr:nth-child(even){background:var(--surface-2)}
.table-note{margin-top:14px;font-size:13.5px;color:var(--ink-400)}

/* 疑问卡 */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.faq-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 24px 22px;box-shadow:var(--shadow-1);transition:box-shadow .25s,border-color .25s,transform .25s;
}
.faq-card:hover{box-shadow:var(--shadow-2);border-color:var(--brand-500);transform:translateY(-2px)}
.faq-q{display:flex;gap:12px;align-items:flex-start;font-size:16.5px;font-weight:600;color:var(--ink-900)}
.faq-q .mark{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  background:var(--brand-600);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.faq-a{margin-top:12px;font-size:15px;line-height:1.85;color:var(--ink-600)}

/* CTA */
.cta-band{
  background:var(--brand-900);border-radius:20px;padding:52px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,135,60,.28),transparent 70%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);position:relative;z-index:2}
.cta-band p{margin-top:14px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78);position:relative;z-index:2}
.cta-checks{margin-top:22px;display:flex;flex-direction:column;gap:12px;position:relative;z-index:2}
.cta-checks li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-checks svg{flex:0 0 18px;margin-top:5px;color:var(--accent-500)}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:2}
.cta-actions .hint{font-size:13.5px;color:rgba(255,255,255,.6)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:47px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.btn-primary{background:var(--cta);color:#fff}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px)}
.btn-ghost{border-color:var(--brand-500);color:var(--brand-600);background:transparent}
.btn-ghost:hover{background:rgba(46,133,116,.10)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--accent-100);transform:translateY(-1px)}
.btn-line{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-line:hover{background:rgba(255,255,255,.12)}
.btn[disabled],.btn.disabled{opacity:.4;pointer-events:none}

/* 互链四宫格 */
.link-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.link-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s,border-color .25s,transform .25s;
}
.link-card:hover{box-shadow:var(--shadow-2);border-color:var(--brand-500);transform:translateY(-2px)}
.link-card h3{font-size:16.5px;color:var(--ink-900)}
.link-card p{font-size:14px;line-height:1.8;color:var(--ink-600)}
.link-card .arrow{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-600)}
.back-bar{margin-top:34px;display:flex;justify-content:center}

/* 页脚 */
.site-foot{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.site-foot .brand{margin-bottom:18px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .2s,transform .2s}
.foot-col a:hover{color:var(--accent-500);transform:translateX(2px)}
.foot-cta{
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:16px;height:40px;padding:0 20px;border-radius:10px;
  background:var(--cta);color:#fff;font-size:14px;font-weight:600;transition:background .2s,transform .2s;
}
.foot-cta:hover{background:var(--cta-hover);transform:translateY(-1px)}
.foot-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:rgba(255,255,255,.72);transition:color .2s}
.foot-bottom a:hover{color:var(--accent-500)}

/* 响应式 */
@media (min-width:1024px){
  .page{margin-left:var(--sidebar-w)}
  .mobile-bar,.drawer{display:none}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .sec{padding:56px 0}
  .split,.media-row,.cta-band{grid-template-columns:1fr;gap:32px}
  .media-row--rev .media-fig{order:0}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 26px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .sec{padding:48px 0}
  .stat-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .banner{min-height:220px}
  .banner .container{padding-top:30px;padding-bottom:24px}
  .banner-sub{font-size:15px}
  .cta-band{padding:30px 22px}
  .cta-actions .btn{width:100%}
  .foot-bottom{justify-content:flex-start}
}

/* roulang page: category4 */
:root{
  --brand-900:#0E2F2A;
  --brand-700:#17544B;
  --brand-600:#1F6B5E;
  --brand-500:#2E8574;
  --accent-500:#C9873C;
  --accent-600:#A96C2A;
  --accent-100:#F6E7D2;
  --cta:#E0663F;
  --cta-hover:#C24E2A;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E1DACB;
  --ink-900:#1B2622;
  --ink-600:#4C5B55;
  --ink-400:#8A968F;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,47,42,.06);
  --shadow-lg:0 10px 28px -14px rgba(14,47,42,.30);
  --nav-w:232px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;}
p{margin:0;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ============ 侧栏导航 ============ */
.site-head{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  background:var(--brand-900);
  display:flex;flex-direction:column;
  padding:26px 18px 22px;
  z-index:80;
}
.head-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px 8px 8px 3px;
  background:linear-gradient(135deg,var(--accent-500) 0%,var(--cta) 100%);
  position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:4px;width:2px;height:18px;
  transform:translateX(-50%);background:rgba(255,255,255,.9);border-radius:2px;
}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:.02em;color:#F6F2EA;white-space:nowrap;
}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:.22s;}
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);}

.side-menu{margin-top:32px;display:flex;flex-direction:column;gap:4px;}
.side-menu a{
  position:relative;display:flex;align-items:center;
  padding:11px 12px;border-radius:10px;
  font-size:14.5px;color:rgba(255,255,255,.78);
  transition:background .2s,color .2s;
}
.side-menu a::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:0;
  background:var(--accent-500);border-radius:2px;transform:translateY(-50%);
  transition:height .22s;
}
.side-menu a:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-menu a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.side-menu a.active::before{height:18px;}

.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);}
.side-cta{
  display:flex;align-items:center;justify-content:center;height:40px;
  border-radius:10px;font-size:14px;color:#fff;
  background:rgba(46,133,116,.34);border:1px solid rgba(46,133,116,.65);
  transition:background .2s,transform .2s;
}
.side-cta:hover{background:var(--brand-500);transform:translateY(-1px);}
.side-note{margin-top:14px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.55);}

/* ============ 主体 ============ */
.page-body{margin-left:var(--nav-w);}
.section{padding:84px 0;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:740px;margin-bottom:42px;}
.section-head h2{font-size:27px;letter-spacing:.01em;}
.section-head p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--ink-600);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-600);background:var(--accent-100);
  border:1px solid rgba(201,135,60,.32);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.eyebrow-dark{color:#F3D9B4;background:rgba(201,135,60,.16);border-color:rgba(201,135,60,.4);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:60px 0 54px;
  background-image:linear-gradient(100deg,rgba(14,47,42,.95) 0%,rgba(14,47,42,.88) 46%,rgba(23,84,75,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid rgba(14,47,42,.2);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 13px);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:22px;}
.breadcrumb a:hover{color:var(--accent-500);}
.breadcrumb span{color:rgba(255,255,255,.42);}
.page-hero h1{
  font-size:36px;line-height:1.28;max-width:760px;color:#fff;
}
.hero-sub{margin-top:18px;max-width:640px;font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.82);}
.hero-meta{
  margin-top:30px;display:flex;flex-wrap:wrap;gap:12px 30px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13.5px;color:rgba(255,255,255,.72);
}
.hero-meta li{display:flex;align-items:center;gap:9px;}
.hero-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.hero-meta b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;}

/* ============ 概览 ============ */
.intro-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:48px;align-items:start;}
.intro-text h2{font-size:27px;}
.intro-text p{margin-top:18px;font-size:16.5px;line-height:1.95;color:var(--ink-600);}
.intro-text p:first-of-type{margin-top:20px;}
.intro-side{display:flex;flex-direction:column;gap:22px;}
.intro-figure{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);
  box-shadow:var(--shadow-sm);
}
.intro-figure img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.stat-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:8px 24px;box-shadow:var(--shadow-sm);
}
.stat-row{
  display:flex;align-items:baseline;gap:14px;
  padding:16px 0;border-bottom:1px dashed var(--line);
}
.stat-row:last-child{border-bottom:0;}
.stat-num{
  font-size:26px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;min-width:56px;
}
.stat-label{font-size:14.5px;color:var(--ink-600);line-height:1.7;}

/* ============ 要点清单 ============ */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.point-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.point-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--brand-500);}
.point-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--accent-100);color:var(--accent-600);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.point-item h3{font-size:18px;line-height:1.5;}
.point-item p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* ============ FAQ 折叠 ============ */
.faq-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:18px;padding:6px 30px;box-shadow:var(--shadow-sm);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:flex-start;gap:16px;
  padding:24px 0;cursor:pointer;list-style:none;
  font-size:17.5px;font-weight:600;color:var(--ink-900);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-index{
  font-size:15px;font-weight:700;color:var(--accent-600);
  font-variant-numeric:tabular-nums;min-width:34px;padding-top:1px;
}
.faq-sign{
  margin-left:auto;flex:0 0 auto;position:relative;
  width:26px;height:26px;border:1.5px solid var(--line);border-radius:50%;
  transition:transform .28s,background .28s,border-color .28s;margin-top:1px;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);
  transform:translate(-50%,-50%);border-radius:2px;transition:background .28s;
}
.faq-sign::before{width:11px;height:1.6px;}
.faq-sign::after{width:1.6px;height:11px;}
.faq-item[open] .faq-sign{transform:rotate(90deg);background:var(--accent-100);border-color:var(--accent-500);}
.faq-item[open] .faq-sign::before,.faq-item[open] .faq-sign::after{background:var(--accent-600);}
.faq-item summary:hover .faq-sign{border-color:var(--brand-500);}
.faq-body{
  display:grid;grid-template-columns:1.4fr 1fr;gap:30px;
  padding:0 0 26px 50px;
}
.faq-body p{font-size:15.5px;line-height:1.9;color:var(--ink-600);}
.faq-points{background:var(--surface-2);border-radius:12px;padding:18px 20px;}
.faq-points h4{font-size:14px;color:var(--brand-700);margin-bottom:10px;letter-spacing:.02em;}
.faq-points li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.8;color:var(--ink-600);margin-bottom:8px;}
.faq-points li:last-child{margin-bottom:0;}
.faq-points li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;
  border-radius:50%;background:var(--accent-500);
}

/* ============ 速查表 ============ */
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
}
table.check-table{width:100%;min-width:660px;border-collapse:collapse;font-size:15px;}
.check-table th{
  background:var(--brand-700);color:#fff;text-align:left;
  padding:15px 20px;font-size:14.5px;font-weight:600;white-space:nowrap;
}
.check-table td{padding:16px 20px;border-top:1px solid var(--line);color:var(--ink-600);line-height:1.8;vertical-align:top;}
.check-table tbody tr:nth-child(even){background:var(--surface-2);}
.check-table td:first-child{color:var(--ink-900);font-weight:600;}
.table-tip{margin-top:16px;font-size:13.5px;color:var(--ink-400);}

/* ============ 四宫格 ============ */
.quad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.quad-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s;
  min-height:170px;
}
.quad-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--brand-500);}
.quad-ico{
  width:36px;height:36px;border-radius:10px;
  border:1.5px solid var(--brand-500);position:relative;flex:0 0 auto;
}
.quad-ico::before{content:"";position:absolute;left:50%;top:9px;width:1.5px;height:16px;background:var(--brand-500);transform:translateX(-50%);}
.quad-ico::after{content:"";position:absolute;left:9px;top:50%;width:16px;height:1.5px;background:var(--brand-500);transform:translateY(-50%);}
.quad-card h3{font-size:17px;line-height:1.5;}
.quad-card p{font-size:14px;line-height:1.8;color:var(--ink-600);}
.quad-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-600);}
.quad-card:hover .quad-more{color:var(--accent-600);}
.quad-actions{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:47px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;border:1.5px solid transparent;
  transition:background .22s,color .22s,transform .22s,border-color .22s,box-shadow .22s;
  white-space:nowrap;
}
.btn-primary{background:var(--cta);color:#fff;box-shadow:0 8px 20px -12px rgba(224,102,63,.85);}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px);}
.btn-ghost{border-color:var(--brand-500);color:var(--brand-600);}
.btn-ghost:hover{background:rgba(46,133,116,.10);transform:translateY(-1px);}
.btn-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.35);}
.btn-light:hover{background:rgba(255,255,255,.18);transform:translateY(-1px);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);border-radius:20px;
  padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,135,60,.30),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:25px;color:#fff;position:relative;z-index:2;}
.cta-band p{margin-top:12px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.76);max-width:560px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ============ 页脚 ============ */
.site-foot{background:var(--brand-900);color:rgba(255,255,255,.72);padding:66px 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.15fr;gap:38px;}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.foot-col li a{
  display:inline-block;padding:4px 0;font-size:14px;
  color:rgba(255,255,255,.72);transition:color .2s,transform .2s;
}
.foot-col li a:hover{color:var(--accent-500);transform:translateX(2px);}
.foot-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;margin-top:18px;border-radius:10px;
  background:var(--cta);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s,transform .2s;
}
.foot-cta:hover{background:var(--cta-hover);transform:translateY(-1px);}
.foot-bottom{
  margin-top:46px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.foot-bottom a:hover{color:var(--accent-500);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .quad-grid{grid-template-columns:repeat(2,1fr);}
  .point-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .site-head{
    position:sticky;top:0;left:auto;width:100%;height:auto;
    padding:0;background:#fff;box-shadow:0 1px 0 var(--line);
  }
  .head-top{width:100%;height:56px;padding:0 18px;border-bottom:1px solid var(--line);}
  .site-head .brand-text{color:var(--brand-900);}
  .nav-toggle{display:inline-flex;}
  .side-menu{
    display:none;width:100%;margin:0;padding:10px 14px 16px;
    background:#fff;gap:2px;max-height:80vh;overflow:auto;
    box-shadow:0 14px 24px -18px rgba(14,47,42,.5);
  }
  body.nav-open .side-menu{display:flex;}
  .side-menu a{color:var(--ink-900);font-size:15px;padding:12px 14px;}
  .side-menu a:hover{background:var(--surface-2);color:var(--brand-700);}
  .side-menu a.active{background:var(--accent-100);color:var(--accent-600);}
  .side-menu a.active::before{display:none;}
  .side-foot{display:none;}
  .page-body{margin-left:0;}
  .section{padding:62px 0;}
  .intro-grid{grid-template-columns:1fr;gap:34px;}
  .faq-body{grid-template-columns:1fr;gap:18px;padding-left:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:42px 32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .page-hero{padding:44px 0 40px;}
  .page-hero h1{font-size:27px;}
  .hero-sub{font-size:15.5px;}
  .intro-text h2,.section-head h2{font-size:22px;}
  .cta-band h2{font-size:21px;}
  .section{padding:52px 0;}
  .point-grid{grid-template-columns:1fr;}
  .quad-grid{grid-template-columns:1fr;}
  .faq-panel{padding:2px 18px;}
  .faq-item summary{font-size:16px;padding:20px 0;}
  .faq-index{min-width:28px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .btn{width:100%;}
  .quad-actions .btn,.cta-actions .btn{width:100%;}
  .cta-actions{width:100%;}
}