/* roulang page: index */
:root{
  --pine:#1F6F5C;
  --pine-dark:#185A4A;
  --pine-soft:rgba(31,111,92,.08);
  --clay:#F2A33C;
  --clay-dark:#DE901F;
  --brick:#C8553D;
  --paper:#F7F5F0;
  --white:#FFFFFF;
  --sand:#EFEBE2;
  --ink:#1C1B1A;
  --soft:#5C5852;
  --mute:#8A857D;
  --line:#E0DAD0;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(28,27,26,.06);
  --shadow-2:0 4px 14px rgba(28,27,26,.10);
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,select{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--pine);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 顶部品牌行 ---------- */
.brand-bar{background:var(--pine);color:#fff;}
.brand-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.logo{display:flex;align-items:baseline;gap:8px;font-size:20px;font-weight:800;letter-spacing:-0.02em;color:#fff;white-space:nowrap;}
.logo-sub{font-size:12px;font-weight:500;color:rgba(255,255,255,.72);letter-spacing:.06em;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.search-box{display:none;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-btn);padding:0 12px;height:40px;transition:border-color .18s ease-out,background .18s ease-out;}
.search-box i{color:rgba(255,255,255,.7);font-size:13px;}
.search-box input{background:transparent;border:0;outline:none;color:#fff;width:170px;}
.search-box input::placeholder{color:rgba(255,255,255,.6);}
.search-box:focus-within{border-color:var(--clay);background:rgba(255,255,255,.18);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);padding:11px 20px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;min-height:44px;}
.btn-primary{background:var(--clay);color:#241A0A;}
.btn-primary:hover{background:var(--clay-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-outline{border-color:var(--pine);color:var(--pine);background:transparent;}
.btn-outline:hover{background:var(--pine-soft);transform:translateY(-1px);}
.btn-on-dark{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-on-dark:hover{background:rgba(255,255,255,.14);}
.btn-sm{padding:8px 16px;font-size:14px;min-height:40px;}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;font-size:16px;}
.menu-toggle:hover{background:rgba(255,255,255,.14);}

/* ---------- 频道行 ---------- */
.channel-bar{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40;}
.channel-inner{display:flex;align-items:center;gap:24px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-item{position:relative;flex:0 0 auto;font-size:15px;font-weight:600;color:var(--soft);padding:0 2px;line-height:52px;white-space:nowrap;transition:color .18s ease-out;}
.channel-item::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:transparent;transition:background .18s ease-out;}
.channel-item:hover{color:var(--ink);}
.channel-item:hover::after{background:var(--clay);}
.channel-item.active{color:var(--pine);}
.channel-item.active::after{background:var(--pine);}
.channel-flash{animation:flash .8s ease-out;}
@keyframes flash{0%{background:#FDEFD9;}100%{background:transparent;}}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:96px 0;}}
.bg-white{background:var(--white);}
.bg-sand{background:var(--sand);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.section-title{position:relative;padding-left:16px;font-size:26px;font-weight:700;line-height:1.35;}
.section-title::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;background:var(--pine);border-radius:2px;}
.section-desc{margin-top:10px;font-size:15px;color:var(--soft);max-width:64ch;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--pine);background:var(--pine-soft);padding:5px 12px;border-radius:999px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--pine);border-bottom:2px solid transparent;transition:color .18s ease-out,border-color .18s ease-out;}
.text-link:hover{color:var(--clay-dark);border-bottom-color:var(--clay);}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:3px 11px;font-size:13px;font-weight:600;background:var(--pine-soft);color:var(--pine);}
.badge-accent{background:var(--clay);color:#241A0A;}
.badge-brick{background:var(--brick);color:#fff;}

/* ---------- Hero ---------- */
.hero{background:var(--white);border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;padding:48px 0 56px;align-items:center;}
@media(min-width:768px){
  .hero-grid{grid-template-columns:6fr 6fr;gap:48px;padding:72px 0 80px;}
}
.hero h1{font-size:26px;line-height:1.34;font-weight:700;letter-spacing:-0.02em;margin:16px 0 0;}
@media(min-width:768px){.hero h1{font-size:32px;line-height:1.25;}}
.hero-sub{margin-top:14px;font-size:18px;line-height:1.7;color:var(--soft);max-width:38ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-points{margin-top:26px;display:grid;gap:10px;}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--soft);}
.hero-points i{color:var(--pine);margin-top:6px;font-size:12px;}
.hero-media{position:relative;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);}
.hero-media img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:16/11;}
.hero-media .hero-tag{position:absolute;left:16px;bottom:16px;background:rgba(28,27,26,.78);color:#fff;font-size:13px;padding:7px 14px;border-radius:999px;}

/* ---------- 价值主张条 ---------- */
.metrics{background:var(--sand);border-bottom:1px solid var(--line);}
.metrics-inner{display:grid;grid-template-columns:repeat(2,1fr);gap:0;padding:28px 0;}
@media(min-width:768px){.metrics-inner{grid-template-columns:repeat(4,1fr);}}
.metric{padding:10px 18px;border-left:1px solid var(--line);}
.metric:first-child{border-left:0;}
.metric-num{font-size:28px;font-weight:700;color:var(--clay-dark);line-height:1.2;}
.metric-num small{font-size:14px;font-weight:600;color:var(--clay-dark);margin-left:2px;}
.metric-label{margin-top:4px;font-size:14px;color:var(--soft);}

/* ---------- 功能分组 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){
  .feature-grid{grid-template-columns:repeat(6,1fr);gap:24px;}
  .feature-lg{grid-column:span 3;}
  .feature-sm{grid-column:span 2;}
}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;position:relative;}
.card:hover{border-color:var(--pine);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card-mark{position:absolute;top:0;right:0;width:12px;height:12px;background:var(--pine);border-radius:0 var(--radius-card) 0 6px;opacity:.85;}
.feature-lg{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:640px){.feature-lg{grid-template-columns:5fr 7fr;align-items:center;}}
.feature-lg img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.card-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--pine-soft);color:var(--pine);font-size:16px;}
.card h3{font-size:20px;font-weight:600;line-height:1.4;margin:14px 0 8px;}
.card p{font-size:15px;color:var(--soft);}
.card .text-link{margin-top:14px;font-size:14px;}
.feature-sm img{width:100%;aspect-ratio:16/10;object-fit:cover;margin-bottom:6px;}

/* ---------- 使用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.step{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;}
.step-num{width:38px;height:38px;border-radius:50%;background:var(--pine);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;}
.step h3{font-size:20px;font-weight:600;margin-bottom:6px;}
.step p{font-size:15px;color:var(--soft);}
.scene-list{display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--white);}
.scene-item{padding:18px 20px;border-bottom:1px solid var(--line);cursor:pointer;transition:background .18s ease-out;}
.scene-item:last-child{border-bottom:0;}
.scene-item:hover{background:var(--paper);}
.scene-item.is-active{background:var(--sand);box-shadow:inset 4px 0 0 var(--pine);}
.scene-item h3{font-size:17px;font-weight:600;}
.scene-item span{font-size:14px;color:var(--mute);}
.scene-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;}
.scene-panel h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.scene-panel p{font-size:15px;color:var(--soft);}
.scene-panel ul{margin-top:14px;display:grid;gap:8px;}
.scene-panel li{font-size:15px;color:var(--soft);display:flex;gap:10px;align-items:flex-start;}
.scene-panel li i{color:var(--pine);margin-top:7px;font-size:11px;}

/* ---------- 成功案例 ---------- */
.case-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.case-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
.case-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;}
.case-card:hover{border-color:var(--pine);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.case-body{padding:20px 22px 22px;}
.case-result{margin:12px 0 6px;font-size:26px;font-weight:700;color:var(--clay-dark);line-height:1.25;}
.case-result small{font-size:14px;font-weight:600;color:var(--soft);margin-left:6px;}
.case-body p{font-size:15px;color:var(--soft);}
.case-body .text-link{margin-top:14px;font-size:14px;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
.news-item{display:grid;grid-template-columns:1fr;gap:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-1);transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;}
@media(min-width:520px){.news-item{grid-template-columns:168px 1fr;align-items:start;}}
.news-item:hover{border-color:var(--pine);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-time{font-size:13px;color:var(--mute);}
.news-title{font-size:17px;font-weight:600;line-height:1.5;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--pine);}
.news-summary{font-size:14px;line-height:1.7;color:var(--soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .text-link{margin-top:10px;font-size:14px;}
.empty-state{background:var(--white);border:1px dashed var(--line);border-radius:var(--radius-card);padding:32px;text-align:center;color:var(--soft);font-size:15px;}
.empty-state .btn{margin-top:16px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.price-grid{grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}}
.price-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.price-card.is-featured{border-top:3px solid var(--pine);box-shadow:var(--shadow-2);}
.price-name{font-size:18px;font-weight:700;}
.price-value{margin:14px 0 4px;font-size:32px;font-weight:700;color:var(--ink);line-height:1.2;}
.price-value small{font-size:14px;font-weight:600;color:var(--mute);margin-left:6px;}
.price-note{font-size:14px;color:var(--mute);}
.price-list{margin:20px 0 24px;display:grid;gap:10px;}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--soft);}
.price-list i{color:var(--pine);margin-top:7px;font-size:12px;}
.price-card .btn{margin-top:auto;width:100%;}

/* ---------- FAQ ---------- */
.faq-wrap{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);padding:0 0 0 0;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:0;text-align:left;padding:20px 16px;font-size:16px;font-weight:600;color:var(--ink);transition:background .18s ease-out,box-shadow .18s ease-out;}
.faq-q:hover{background:var(--paper);}
.faq-q i{color:var(--pine);font-size:14px;transition:transform .2s ease-out;}
.faq-item.is-open .faq-q{box-shadow:inset 3px 0 0 var(--clay);}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{display:none;padding:0 16px 22px;font-size:15px;line-height:1.85;color:var(--soft);}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--pine);color:#fff;}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0;}
@media(min-width:768px){.cta-grid{grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:72px 0;}}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;}
.cta-band p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.82);max-width:52ch;}
.cta-band .btn{margin-top:22px;}
.form-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-card);padding:22px;}
.form-row{margin-bottom:14px;}
.form-row label{display:block;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:7px;}
.form-row input,.form-row select{width:100%;height:44px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.95);padding:0 14px;color:var(--ink);outline:none;transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.form-row input:focus,.form-row select:focus{border-color:var(--clay);box-shadow:0 0 0 3px rgba(242,163,60,.32);}
.form-tip{font-size:13px;color:rgba(255,255,255,.68);margin-top:10px;}
.form-card .btn{width:100%;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--sand);border-top:3px solid var(--pine);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:5fr 3fr 3fr 3fr;gap:32px;}}
.footer-brand{font-size:18px;font-weight:800;color:var(--pine);}
.footer-desc{margin-top:12px;font-size:13px;line-height:1.9;color:var(--soft);max-width:32ch;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--ink);}
.footer-col li{margin-bottom:9px;}
.footer-col a,.footer-col span{font-size:13px;line-height:1.9;color:var(--soft);transition:color .18s ease-out;}
.footer-col a:hover{color:var(--pine);}
.footer-bottom{border-top:1px solid var(--line);padding:16px 0 24px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:13px;color:var(--mute);}

@media(max-width:520px){
  .hero h1{font-size:26px;}
  .metric{padding:10px 14px;}
  .metric-num{font-size:24px;}
}

/* roulang page: category1 */
:root{
  --primary:#1F6F5C;
  --primary-soft:rgba(31,111,92,.08);
  --accent:#F2A33C;
  --accent-deep:#E0912A;
  --brick:#C8553D;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EFEBE2;
  --text:#1C1B1A;
  --text-2:#5C5852;
  --text-3:#8A857D;
  --border:#E0DAD0;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(28,27,26,.06);
  --shadow-md:0 4px 14px rgba(28,27,26,.10);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);object-fit:cover}
a{color:var(--primary);text-decoration:none;transition:color 180ms ease-out,border-color 180ms ease-out,background-color 180ms ease-out}
a:hover{color:var(--accent-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 品牌行 ---------- */
.brand-bar{background:var(--primary);color:#fff}
.brand-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand-logo{display:flex;align-items:baseline;gap:10px;color:#fff;font-size:21px;font-weight:800;letter-spacing:-.02em}
.brand-logo:hover{color:#fff}
.brand-logo .sub{font-size:12px;font-weight:500;color:rgba(255,255,255,.78);letter-spacing:.02em}
.brand-actions{display:flex;align-items:center;gap:12px}
.brand-search{display:none;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-btn);height:40px;padding:0 12px;min-width:230px}
.brand-search svg{flex:0 0 auto;opacity:.85}
.brand-search input{background:transparent;border:0;color:#fff;font-size:14px;width:100%;font-family:inherit}
.brand-search input::placeholder{color:rgba(255,255,255,.7)}
.brand-search input:focus{outline:none}
@media (min-width:900px){.brand-search{display:flex}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);padding:11px 20px;font-size:15px;font-weight:600;line-height:1;min-height:44px;transition:transform 180ms ease-out,background-color 180ms ease-out,box-shadow 180ms ease-out,color 180ms ease-out;white-space:nowrap}
.btn-primary{background:var(--accent);color:#241a06;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--accent-deep);color:#241a06;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--primary)}
.btn-white:hover{background:#fff;color:var(--primary);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px}
.brand-cta{display:none}
@media (min-width:640px){.brand-cta{display:inline-flex}}
.hamburger{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-btn);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);color:#fff}
@media (min-width:768px){.hamburger{display:none}}
.mobile-menu{display:none;background:var(--primary);border-top:1px solid rgba(255,255,255,.18)}
.mobile-menu.open{display:block}
.mobile-menu ul{padding:8px 20px 16px}
.mobile-menu li a{display:block;padding:12px 0;color:#fff;font-size:15px;border-bottom:1px solid rgba(255,255,255,.14)}
.mobile-menu li:last-child a{border-bottom:0}

/* ---------- 频道行 ---------- */
.channel-bar{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.channel-inner{display:flex;align-items:center;height:52px;gap:24px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-item{position:relative;display:inline-flex;align-items:center;height:52px;font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;padding:0 2px}
.channel-item::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:transparent;border-radius:2px}
.channel-item:hover{color:var(--accent-deep)}
.channel-item.active{color:var(--primary);font-weight:700}
.channel-item.active::after{background:var(--primary)}
@media (max-width:767px){
  .channel-bar{background:var(--surface-alt)}
  .channel-inner{gap:12px}
  .channel-item{background:#fff;border:1px solid var(--border);border-radius:999px;height:36px;padding:0 14px;font-size:14px;margin:8px 0}
  .channel-item::after{display:none}
  .channel-item.active{border-color:var(--primary);background:var(--primary-soft)}
}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:13px;color:var(--text-3);padding:18px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumbs li{display:flex;align-items:center;gap:6px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--accent-deep);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:2px;text-decoration-thickness:2px}
.crumbs .current{color:var(--text-3)}

/* ---------- Banner ---------- */
.page-banner{position:relative;margin-top:20px;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--border);background-color:var(--surface-alt);background-image:linear-gradient(90deg,rgba(247,245,240,.94) 0%,rgba(247,245,240,.86) 52%,rgba(247,245,240,.62) 100%),url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center}
.page-banner-inner{padding:34px 24px 36px;max-width:720px}
@media (min-width:768px){.page-banner-inner{padding:56px 48px 60px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 12px}
.page-banner h1{font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-.02em;margin-top:16px}
@media (min-width:768px){.page-banner h1{font-size:32px;line-height:1.25}}
.page-banner .lead{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:62ch}
.banner-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-alt{background:var(--surface-alt)}
.section-white{background:var(--surface)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{font-size:22px;font-weight:700;position:relative;padding-left:14px}
.section-head h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;background:var(--primary);border-radius:2px}
@media (min-width:768px){.section-head h2{font-size:26px}}
.section-head .desc{font-size:15px;color:var(--text-2);max-width:56ch;margin-top:8px;width:100%}
.link-more{font-size:14px;font-weight:600;color:var(--primary);border-bottom:2px solid var(--accent);border-bottom-offset:0;padding-bottom:2px;text-decoration:none}
.link-more:hover{color:var(--accent-deep);border-bottom-color:var(--accent-deep)}

/* ---------- 指标条 ---------- */
.metrics{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:22px 8px;display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.metrics{grid-template-columns:repeat(4,1fr);padding:26px 8px}}
.metric{padding:0 18px;border-left:1px solid var(--border);position:relative}
.metric:first-child{border-left:0}
@media (max-width:639px){.metric{border-left:0;padding:0 16px}}
.metric .num{font-size:26px;font-weight:800;color:var(--accent-deep);letter-spacing:-.02em}
@media (min-width:768px){.metric .num{font-size:28px}}
.metric .label{font-size:14px;color:var(--text-2);margin-top:4px}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;transition:border-color 200ms ease-out,box-shadow 200ms ease-out,transform 200ms ease-out}
.card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card-media{position:relative;aspect-ratio:16/10;background:var(--surface-alt)}
.card-media img{width:100%;height:100%;border-radius:0}
.card-media .corner{position:absolute;top:10px;left:10px;width:10px;height:10px;background:var(--primary);border-radius:2px}
.card-tag{position:absolute;left:10px;bottom:10px;background:rgba(255,255,255,.94);color:var(--primary);font-size:12px;font-weight:700;border-radius:999px;padding:4px 10px;border:1px solid var(--border)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;font-weight:600}
.card-body p{font-size:14.5px;line-height:1.8;color:var(--text-2)}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;padding-top:6px}
.card-link::after{content:"→";transition:transform 180ms ease-out}
.card-link:hover{color:var(--accent-deep);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
.card-link:hover::after{transform:translateX(2px)}

/* ---------- 边界说明 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:900px){.split{grid-template-columns:5fr 7fr;gap:44px;align-items:start}}
.split h2{font-size:22px;font-weight:700;position:relative;padding-left:14px}
.split h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;background:var(--primary);border-radius:2px}
@media (min-width:768px){.split h2{font-size:26px}}
.split .intro{margin-top:16px;font-size:15.5px;color:var(--text-2);line-height:1.85}
.bound-list{border-top:1px solid var(--border)}
.bound-item{border-bottom:1px solid var(--border);padding:18px 4px;display:grid;grid-template-columns:1fr;gap:6px}
.bound-item h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px}
.bound-item .dot{width:8px;height:8px;border-radius:2px;background:var(--accent);flex:0 0 auto}
.bound-item p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.bound-item .meta{font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;padding:20px 4px;font-size:16px;font-weight:600;color:var(--text);transition:color 180ms ease-out}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{content:"+";margin-left:auto;font-size:20px;font-weight:500;color:var(--primary);line-height:1.2}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary{color:var(--primary);border-left:3px solid var(--accent);padding-left:14px}
.faq-answer{padding:0 4px 22px 4px;font-size:15px;line-height:1.87;color:var(--text-2);max-width:72ch}
.faq-item[open] .faq-answer{padding-left:17px}

/* ---------- CTA ---------- */
.cta-band{background:var(--primary);color:#fff}
.cta-inner{padding:48px 0;display:grid;grid-template-columns:1fr;gap:20px;align-items:center}
@media (min-width:900px){.cta-inner{grid-template-columns:8fr 4fr;padding:60px 0}}
.cta-inner h2{font-size:24px;font-weight:700;color:#fff}
@media (min-width:768px){.cta-inner h2{font-size:28px}}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.88);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--surface-alt);border-top:3px solid var(--primary);padding:44px 0 20px;font-size:13px;line-height:1.9;color:var(--text-2)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:4fr 3fr 3fr 3fr;gap:32px}}
.footer-brand{font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.footer-desc{margin-top:10px;max-width:34ch;color:var(--text-2)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px}
.footer-col li{margin-bottom:8px}
.footer-col a{color:var(--text-2)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px}
.footer-bottom{margin-top:32px;padding-top:16px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* roulang page: article */
:root{
  --primary:#1F6F5C;
  --primary-dark:#185747;
  --primary-soft:rgba(31,111,92,.08);
  --accent:#F2A33C;
  --accent-dark:#DB8E29;
  --brick:#C8553D;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EFEBE2;
  --text:#1C1B1A;
  --text-2:#5C5852;
  --text-3:#8A857D;
  --line:#E0DAD0;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(28,27,26,.06);
  --shadow-2:0 4px 14px rgba(28,27,26,.10);
  --font: -apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:768px){
  .container{padding-left:32px;padding-right:32px;}
}

/* ============ 品牌行 ============ */
.site-header{position:relative;z-index:40;}
.brand-bar{
  background:var(--primary);
  color:#fff;
}
.brand-inner{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.logo{display:flex;align-items:baseline;gap:8px;white-space:nowrap;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:8px;
  background:var(--accent);color:#2A1A05;
  font-weight:800;font-size:13px;letter-spacing:-.02em;
  align-self:center;
}
.logo-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:#fff;}
.logo-sub{
  font-size:12px;color:rgba(255,255,255,.72);
  padding-left:10px;border-left:1px solid rgba(255,255,255,.28);
  align-self:center;
}
.brand-actions{display:flex;align-items:center;gap:12px;}
.search-box{position:relative;}
.search-box input{
  width:220px;height:40px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.30);
  background:rgba(255,255,255,.14);
  color:#fff;padding:0 14px;
  transition:background-color .18s ease-out,border-color .18s ease-out;
}
.search-box input::placeholder{color:rgba(255,255,255,.70);}
.search-box input:focus{
  background:rgba(255,255,255,.22);
  border-color:var(--accent);
  outline:none;
}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid rgba(255,255,255,.30);
}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}

/* ============ 频道行 ============ */
.channel-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  height:52px;
  display:flex;
  align-items:center;
  gap:28px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-item{
  position:relative;
  flex:0 0 auto;
  height:52px;
  display:inline-flex;
  align-items:center;
  font-size:15px;
  color:var(--text-2);
  border-bottom:3px solid transparent;
}
.channel-item:hover{color:var(--accent);border-bottom-color:var(--accent);}
.channel-item.active{color:var(--primary);font-weight:600;border-bottom-color:var(--primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:11px 20px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .16s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}
.btn-accent{background:var(--accent);color:#2A1A05;}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:14px;
  border-bottom:2px solid transparent;
}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* ============ 面包屑 ============ */
.breadcrumb{background:var(--surface);border-bottom:1px solid var(--line);}
.breadcrumb-inner{
  display:flex;align-items:center;gap:10px;
  height:48px;font-size:13px;color:var(--text-3);
  overflow:hidden;white-space:nowrap;
}
.breadcrumb-inner a{color:var(--text-2);}
.breadcrumb-inner a:hover{color:var(--accent);}
.breadcrumb-inner .sep{color:var(--line);}
.breadcrumb-inner .current{
  color:var(--text-3);
  overflow:hidden;text-overflow:ellipsis;max-width:52ch;
}

/* ============ 文章头 ============ */
.article-hero{
  background:var(--surface);
  padding:36px 0 0;
  border-bottom:1px solid var(--line);
}
.hero-eyebrow{
  display:inline-block;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 12px;border-radius:999px;
  margin-bottom:16px;
}
.article-hero h1{
  font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.02em;
  max-width:22ch;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:18px;font-size:13px;color:var(--text-3);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:var(--primary-soft);color:var(--primary);
}
.badge-accent{background:var(--accent);color:#2A1A05;}
.hero-banner{
  margin:26px 0 0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/6;
  background:var(--surface-alt);
}
.hero-banner img{width:100%;height:100%;object-fit:cover;}

/* ============ 主体布局 ============ */
.main-wrap{padding:48px 0 72px;}
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
  align-items:start;
}
@media(min-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr) 280px;gap:56px;}
}
.article-shell{min-width:0;}

/* ============ 正文排版 ============ */
.article-content{
  max-width:760px;
  font-size:17px;
  line-height:32px;
  color:var(--text);
}
.article-content p{margin:0 0 1.15em;}
.article-content h2{
  font-size:24px;line-height:1.4;font-weight:700;
  margin:2em 0 .7em;padding-left:14px;
  border-left:4px solid var(--primary);
}
.article-content h3{font-size:20px;line-height:1.5;font-weight:600;margin:1.6em 0 .6em;}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.3em;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin:.4em 0;}
.article-content li::marker{color:var(--primary);font-weight:700;}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}
.article-content a:hover{color:var(--accent);}
.article-content blockquote{
  margin:1.5em 0;padding:16px 20px;
  border-left:3px solid var(--accent);
  background:var(--surface-alt);
  border-radius:0 var(--radius-btn) var(--radius-btn) 0;
  color:var(--text-2);
}
.article-content img{border-radius:var(--radius-img);margin:1.4em 0;}
.article-content figure{margin:1.4em 0;}
.article-content figcaption{font-size:13px;text-align:center;color:var(--text-3);margin-top:8px;}
.article-content table{
  width:100%;border-collapse:collapse;margin:1.4em 0;
  background:var(--surface-alt);font-size:15px;
}
.article-content th,.article-content td{
  border:1px solid var(--line);padding:10px 14px;text-align:left;
}
.article-content th{background:rgba(31,111,92,.08);font-weight:700;color:var(--primary);}
.article-content tr:hover td{background:#fff;}
.empty-state{
  max-width:760px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px 28px;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* ============ 标签 ============ */
.tag-row{max-width:760px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  font-size:13px;color:var(--text-2);
  transition:border-color .18s ease-out,color .18s ease-out;
}
.tag:hover{border-color:var(--primary);color:var(--primary);}

/* ============ 侧栏 ============ */
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:20px;}
.side-title{
  font-size:15px;font-weight:700;color:var(--text);
  padding-bottom:12px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:4px;height:16px;background:var(--primary);border-radius:2px;}
.side-list li + li{border-top:1px dashed var(--line);}
.side-list a{
  display:block;padding:10px 0;
  font-size:14px;line-height:1.6;color:var(--text-2);
}
.side-list a:hover{color:var(--primary);}
.to-top{
  width:100%;justify-content:center;
  border:1px solid var(--primary);color:var(--primary);
  background:transparent;border-radius:var(--radius-btn);
  min-height:44px;font-size:14px;font-weight:600;
}
.to-top:hover{background:var(--primary-soft);}
.side-stack{display:flex;flex-direction:column;gap:0;}

/* ============ 相关推荐 ============ */
.rel-section{padding:56px 0;background:var(--surface-alt);border-top:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.sec-head h2{
  font-size:26px;font-weight:700;letter-spacing:-.01em;
  display:flex;align-items:center;gap:12px;
}
.sec-head h2::before{content:"";width:4px;height:20px;background:var(--primary);border-radius:2px;}
.rel-list{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.rel-list{grid-template-columns:repeat(3,minmax(0,1fr));}}
.rel-item{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.rel-item:hover{border-color:var(--primary);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.rel-thumb{aspect-ratio:16/10;background:var(--surface-alt);overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:16px 18px 20px;}
.rel-body .badge{margin-bottom:10px;}
.rel-body h3{font-size:16px;line-height:1.55;font-weight:600;margin-bottom:8px;}
.rel-body p{font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ============ 返回入口 ============ */
.back-row{padding:40px 0 0;display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--primary);color:#fff;padding:56px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-band h2{font-size:26px;font-weight:700;letter-spacing:-.01em;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:56ch;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--surface-alt);
  border-top:3px solid var(--primary);
  padding:48px 0 24px;
  font-size:13px;line-height:1.9;color:var(--text-2);
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-bottom:28px;border-bottom:1px solid var(--line);
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}}
.footer-brand{font-size:18px;font-weight:800;color:var(--primary);letter-spacing:-.02em;margin-bottom:10px;}
.footer-desc{max-width:30ch;color:var(--text-2);}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px;}
.footer-col li{margin-bottom:6px;}
.footer-col a{color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-col span{color:var(--text-3);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;font-size:13px;color:var(--text-3);
}

@media(max-width:767px){
  .search-box{display:none;}
  .menu-toggle{display:flex;}
  .channel-bar{display:none;}
  .channel-bar.open{display:block;}
  .channel-inner{height:auto;flex-direction:column;align-items:stretch;gap:0;padding:8px 0;}
  .channel-item{height:44px;border-bottom:1px solid var(--line);}
  .channel-item.active{border-bottom-color:var(--primary);}
  .logo-sub{display:none;}
  .article-hero h1{font-size:26px;line-height:1.34;}
  .article-content{font-size:16px;line-height:30px;}
  .hero-banner{aspect-ratio:16/9;}
  .sec-head h2{font-size:22px;}
  .cta-band h2{font-size:22px;}
}

/* roulang page: category2 */
:root{
    --ink:#1C1B1A;
    --ink-2:#5C5852;
    --ink-3:#8A857D;
    --bg:#F7F5F0;
    --panel:#EFEBE2;
    --white:#FFFFFF;
    --primary:#1F6F5C;
    --primary-dark:#185A4A;
    --accent:#F2A33C;
    --accent-dark:#E0932A;
    --brick:#C8553D;
    --line:#E0DAD0;
    --r-card:14px;
    --r-btn:10px;
    --r-img:12px;
    --sh:0 1px 2px rgba(28,27,26,.06);
    --sh-h:0 4px 14px rgba(28,27,26,.10);
    --maxw:1200px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:var(--primary);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
  button,input{font:inherit}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
  .container{width:100%;max-width:var(--maxw) !important;margin:0 auto;padding-left:20px;padding-right:20px}

  /* ---------- 品牌行 ---------- */
  .brand-bar{background:var(--primary);color:#fff}
  .brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
  .logo{display:flex;align-items:baseline;gap:10px;color:#fff;font-weight:800;font-size:21px;letter-spacing:-.02em;line-height:1}
  .logo:hover{color:#fff}
  .logo-sub{font-size:13px;font-weight:600;color:rgba(255,255,255,.74);letter-spacing:.06em}
  .brand-right{display:flex;align-items:center;gap:14px}
  .brand-search input{
    height:40px;width:220px;border-radius:var(--r-btn);
    border:1px solid rgba(255,255,255,.32);
    background:rgba(255,255,255,.12);
    color:#fff;padding:0 14px;font-size:14px;transition:border-color .18s ease-out,background-color .18s ease-out;
  }
  .brand-search input::placeholder{color:rgba(255,255,255,.72)}
  .brand-search input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.2)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:700;border:1px solid transparent;
    cursor:pointer;transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .btn-accent{background:var(--accent);color:#23180A}
  .btn-accent:hover{background:var(--accent-dark);color:#23180A;transform:translateY(-1px)}
  .btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
  .btn-outline:hover{background:rgba(31,111,92,.08);color:var(--primary)}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px}

  /* ---------- 频道行 ---------- */
  .channel-bar{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
  .channel-inner{display:flex;align-items:stretch;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none}
  .channel-inner::-webkit-scrollbar{display:none}
  .channel-item{
    display:inline-flex;align-items:center;white-space:nowrap;
    font-size:15px;font-weight:500;color:var(--ink-2);
    border-bottom:3px solid transparent;padding:0 2px;
  }
  .channel-item:hover{color:var(--primary);border-bottom-color:var(--accent)}
  .channel-item.active{color:var(--primary);font-weight:700;border-bottom-color:var(--primary)}

  /* ---------- 面包屑 ---------- */
  .crumb{padding:18px 0 0;font-size:13px;color:var(--ink-3)}
  .crumb a{color:var(--ink-2)}
  .crumb a:hover{color:var(--primary)}
  .crumb .sep{margin:0 8px;color:#B9B3A9}
  .crumb .current{color:var(--ink-3)}

  /* ---------- 顶部 Banner ---------- */
  .page-banner{
    position:relative;margin-top:18px;border-radius:var(--r-card);overflow:hidden;
    border:1px solid var(--line);
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .page-banner::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(247,245,240,.96) 0%,rgba(247,245,240,.90) 52%,rgba(247,245,240,.68) 100%);
  }
  .banner-inner{position:relative;padding:46px 40px}
  .page-title{
    margin:0 0 14px;font-size:34px;line-height:1.28;font-weight:700;letter-spacing:-.02em;
    border-left:5px solid var(--primary);padding-left:16px;max-width:22ch;
  }
  .banner-desc{margin:0;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:62ch}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
  .badge{display:inline-flex;align-items:center;border-radius:999px;padding:4px 12px;font-size:13px;font-weight:600;background:rgba(31,111,92,.08);color:var(--primary)}
  .badge-accent{background:var(--accent);color:#3A2A10}

  /* ---------- 主布局 ---------- */
  .layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:40px;padding:40px 0 0;align-items:start}

  .toc{position:sticky;top:76px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 18px;box-shadow:var(--sh)}
  .toc-title{margin:0 0 12px;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--ink-3)}
  .toc-list{list-style:none;margin:0;padding:0}
  .toc-list li{margin:0}
  .toc-list a{
    display:block;font-size:14px;line-height:1.55;color:var(--ink-2);
    padding:9px 10px;border-left:3px solid transparent;border-radius:8px;
  }
  .toc-list a:hover{background:var(--panel);color:var(--primary);border-left-color:var(--accent)}
  .toc-list a.is-current{background:var(--panel);color:var(--primary);border-left-color:var(--primary);font-weight:700}

  .article-body{min-width:0}
  .section{padding:34px 0;border-top:1px solid var(--line);scroll-margin-top:76px}
  .section:first-child{border-top:0;padding-top:0}
  .sec-title{
    display:flex;align-items:center;gap:12px;
    margin:0 0 16px;font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.01em;
  }
  .sec-title::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--primary);flex:none}
  .sec-num{font-size:16px;font-weight:800;color:var(--accent);letter-spacing:.04em}
  .sub-title{margin:24px 0 10px;font-size:20px;line-height:1.5;font-weight:600}
  .para{margin:0 0 14px;max-width:72ch;color:var(--ink);font-size:16px;line-height:1.9}
  .para-muted{color:var(--ink-2)}

  .dot-list{list-style:none;margin:16px 0 0;padding:0;max-width:72ch}
  .dot-list li{position:relative;padding-left:22px;margin-bottom:12px;color:var(--ink);line-height:1.85}
  .dot-list li::before{content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--primary)}
  .dot-list li strong{color:var(--ink);font-weight:700}

  .step-row{display:flex;gap:16px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--white);margin-bottom:12px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
  .step-row:hover{border-color:var(--primary);box-shadow:var(--sh-h)}
  .step-idx{flex:none;width:34px;height:34px;border-radius:9px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}
  .step-row h3{margin:0 0 6px;font-size:18px;line-height:1.5;font-weight:600}
  .step-row p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.85}

  .article-figure{margin:26px 0;padding:0}
  .article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
  .article-figure figcaption{margin-top:10px;font-size:13px;color:var(--ink-3);text-align:center}

  .table-wrap{overflow-x:auto;border-radius:var(--r-img);margin-top:18px}
  .data-table{width:100%;min-width:560px;border-collapse:collapse;font-size:15px;background:var(--white)}
  .data-table thead th{background:#E7F0EC;color:var(--primary);text-align:left;padding:13px 16px;font-weight:700;font-size:14px;border:1px solid var(--line)}
  .data-table td{padding:13px 16px;border:1px solid var(--line);color:var(--ink-2);vertical-align:top;line-height:1.75}
  .data-table tbody tr:hover{background:var(--panel)}

  .link-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:12px}
  .link-list li{border:1px solid var(--line);border-radius:var(--r-card);background:var(--white);padding:16px 20px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
  .link-list li:hover{border-color:var(--primary);box-shadow:var(--sh-h)}
  .link-list strong{display:block;font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px}
  .link-list span{font-size:14px;color:var(--ink-2)}
  .text-link{color:var(--primary);font-weight:600;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;text-decoration-thickness:2px}
  .text-link:hover{color:var(--accent);text-decoration-color:var(--accent)}

  /* ---------- FAQ ---------- */
  .faq-section{padding:48px 0 8px}
  .faq-list{border-top:1px solid var(--line);margin-top:18px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:20px 0 20px 14px;font-size:16px;font-weight:600;color:var(--ink);
    border-left:3px solid transparent;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--primary);border-left-color:var(--accent);background:rgba(242,163,60,.06)}
  .faq-item summary::after{content:"+";flex:none;color:var(--accent);font-size:20px;font-weight:700;line-height:1.4}
  .faq-item[open] summary{color:var(--primary);border-left-color:var(--accent)}
  .faq-item[open] summary::after{content:"−"}
  .faq-a{padding:0 0 22px 14px;font-size:15px;line-height:1.88;color:var(--ink-2);max-width:72ch}

  /* ---------- 底部 CTA ---------- */
  .cta-band{
    background:var(--primary);border-radius:var(--r-card);
    padding:40px;margin:56px 0 0;color:#fff;
    display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  }
  .cta-title{margin:0 0 8px;font-size:26px;line-height:1.35;font-weight:700;color:#fff}
  .cta-text{margin:0;font-size:15px;color:rgba(255,255,255,.84);max-width:52ch;line-height:1.8}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--panel);border-top:3px solid var(--primary);margin-top:72px;padding:48px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
  .footer-brand{font-size:19px;font-weight:800;color:var(--primary);margin-bottom:10px;letter-spacing:-.01em}
  .footer-desc{margin:0;font-size:13px;line-height:1.9;color:var(--ink-2);max-width:28ch}
  .footer-col h4{margin:0 0 12px;font-size:14px;font-weight:700;color:var(--ink)}
  .footer-col ul{list-style:none;margin:0;padding:0}
  .footer-col li{font-size:13px;line-height:1.9;color:var(--ink-2)}
  .footer-col a{color:var(--ink-2)}
  .footer-col a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:36px;padding:18px 0;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:var(--ink-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .layout{grid-template-columns:minmax(0,1fr);gap:26px;padding-top:30px}
    .toc{position:static;padding:16px}
    .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
    .toc-list::-webkit-scrollbar{display:none}
    .toc-list a{white-space:nowrap;border:1px solid var(--line);border-left:1px solid var(--line);border-radius:999px;padding:8px 14px}
    .toc-list a.is-current{border-color:var(--primary)}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  }
  @media (max-width:767px){
    .brand-search{display:none}
    .brand-inner{min-height:58px}
    .logo{font-size:19px}
    .channel-inner{gap:18px}
    .banner-inner{padding:30px 22px}
    .page-title{font-size:26px;line-height:1.34;padding-left:12px;border-left-width:4px}
    .banner-desc{font-size:15px}
    .sec-title{font-size:22px}
    .sub-title{font-size:18px}
    .cta-band{padding:28px 22px}
    .cta-title{font-size:22px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:6px}
  }
  @media (max-width:520px){
    .container{padding-left:16px;padding-right:16px}
    .step-row{padding:14px}
    .step-idx{width:30px;height:30px;font-size:13px}
  }

/* roulang page: category3 */
:root{
  --brand:#1F6F5C;
  --brand-dark:#195A4B;
  --accent:#F2A33C;
  --accent-dark:#E0901F;
  --accent-strong:#B26A0E;
  --brick:#C8553D;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EFEBE2;
  --ink:#1C1B1A;
  --ink-2:#5C5852;
  --ink-3:#8A857D;
  --line:#E0DAD0;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(28,27,26,.06);
  --sh2:0 4px 14px rgba(28,27,26,.10);
  --max:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-0.01em}
p{margin:0}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* 品牌行 */
.brand-bar{background:var(--brand);color:#fff}
.brand-inner{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:inline-flex;align-items:baseline;gap:8px;font-size:20px;font-weight:800;color:#fff;letter-spacing:-0.02em}
.logo-sub{font-size:12px;font-weight:500;color:rgba(255,255,255,.72);letter-spacing:.06em}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:none}
@media(min-width:768px){.search-box{display:block}}
.search-box input{
  width:200px;height:38px;padding:0 14px;border-radius:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#fff;outline:none;transition:border-color .18s ease-out,background .18s ease-out;
}
.search-box input::placeholder{color:rgba(255,255,255,.66)}
.search-box input:focus{border-color:var(--accent);background:rgba(255,255,255,.2)}
.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
  width:44px;height:44px;padding:0 11px;border-radius:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);cursor:pointer;
}
.menu-toggle span{display:block;height:2px;background:#fff;border-radius:2px}
@media(min-width:768px){.menu-toggle{display:none}}

/* 频道行 */
.channel-bar{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.channel-inner{display:flex;align-items:center;gap:26px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-item{
  position:relative;display:inline-flex;align-items:center;height:52px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color .18s ease-out;
}
.channel-item:hover{color:var(--accent)}
.channel-item.active{color:var(--brand);font-weight:700}
.channel-item.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand);border-radius:2px 2px 0 0}
@media(max-width:767px){
  .channel-bar.open .channel-inner{flex-direction:column;align-items:stretch;height:auto;padding:6px 0 12px;overflow:visible;gap:2px}
  .channel-bar.open .channel-item{height:44px;padding:0 12px;border-radius:8px}
  .channel-bar.open .channel-item.active{background:rgba(31,111,92,.08)}
  .channel-bar.open .channel-item.active::after{display:none}
}

/* 面包屑 */
.breadcrumb-wrap{padding-top:20px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-2);transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C6BFB4}
.breadcrumb .current{color:var(--ink-3)}

/* Hero */
.cat-hero{padding:14px 0 0}
.hero-frame{
  position:relative;display:flex;align-items:center;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);
  min-height:280px;background:var(--surface-alt);
}
.hero-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,245,240,.97) 0%,rgba(247,245,240,.90) 46%,rgba(247,245,240,.54) 100%);
}
.hero-body{position:relative;z-index:2;padding:36px 24px;max-width:660px}
@media(min-width:768px){.hero-body{padding:52px 48px}}
.hero-body h1{font-size:26px;font-weight:700;letter-spacing:-0.02em;margin-top:14px}
@media(min-width:768px){.hero-body h1{font-size:32px}}
.hero-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:56ch}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* 徽章与按钮 */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:13px;font-weight:500;background:rgba(31,111,92,.10);color:var(--brand)}
.badge-accent{background:var(--accent);color:#1C1B1A}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--ink-2)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--accent);color:#1C1B1A}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(31,111,92,.08)}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* 指标条 */
.stat-band{margin-top:24px;background:var(--surface-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr)}
@media(min-width:768px){.stat-row{grid-template-columns:repeat(4,1fr)}}
.stat-item{padding:22px 16px;border-left:1px solid var(--line)}
.stat-item:nth-child(odd){border-left:0}
@media(min-width:768px){
  .stat-item:nth-child(odd){border-left:1px solid var(--line)}
  .stat-item:first-child{border-left:0}
}
.stat-num{font-size:26px;font-weight:700;line-height:1.2;color:var(--accent-strong)}
.stat-label{margin-top:6px;font-size:13px;color:var(--ink-2);line-height:1.6}

/* 区块 */
.section{padding:60px 0}
@media(min-width:768px){.section{padding:88px 0}}
.section-white{background:var(--surface)}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{position:relative;padding-left:16px;font-size:24px;font-weight:700;letter-spacing:-0.02em}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}
@media(min-width:768px){.section-head h2{font-size:26px}}
.section-head p{margin-top:12px;padding-left:16px;font-size:16px;line-height:1.85;color:var(--ink-2)}

/* 时间线 */
.timeline{position:relative;padding-left:44px}
@media(min-width:768px){.timeline{padding-left:60px}}
.timeline::before{
  content:"";position:absolute;left:19px;top:8px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(31,111,92,.18) 100%);
}
.tl-node{position:relative;padding-bottom:42px}
.tl-node:last-child{padding-bottom:0}
.tl-marker{
  position:absolute;left:-44px;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;box-shadow:0 0 0 6px var(--surface);
}
@media(min-width:768px){.tl-marker{left:-60px}}
.tl-body h3{font-size:20px;font-weight:600}
.tl-body p{margin-top:10px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:72ch}
.tl-figure{
  margin-top:20px;max-width:640px;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-img);background:var(--surface);
}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.tl-figure figcaption{padding:10px 16px;font-size:13px;line-height:1.7;color:var(--ink-3)}
.tl-more{margin-top:14px}
.link-more{
  color:var(--brand);font-size:15px;font-weight:600;
  text-decoration:underline;text-decoration-color:var(--accent);
  text-decoration-thickness:2px;text-underline-offset:4px;
  transition:color .18s ease-out;
}
.link-more:hover{color:var(--accent)}

/* 口径与来源 */
.source-grid{display:grid;gap:32px}
@media(min-width:992px){.source-grid{grid-template-columns:5fr 7fr;gap:56px}}
.source-copy p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:72ch}
.source-list{border-top:1px solid var(--line)}
.source-list li{padding:18px 0;border-bottom:1px solid var(--line)}
.source-list h3{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600}
.source-list h3::before{content:"";width:6px;height:6px;flex:none;background:var(--accent);border-radius:1px}
.source-list p{margin-top:6px;padding-left:16px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tag{
  display:inline-flex;align-items:center;min-height:38px;padding:7px 15px;
  border:1px solid var(--line);border-radius:999px;background:var(--surface);
  font-size:14px;color:var(--ink-2);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* 索引卡 */
.link-grid{display:grid;gap:20px}
@media(min-width:768px){.link-grid{grid-template-columns:repeat(3,1fr)}}
.link-card{
  display:block;padding:22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.link-card:hover{border-color:var(--brand);box-shadow:var(--sh2);transform:translateY(-2px)}
.link-card h3{font-size:18px;font-weight:600}
.link-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.link-card .arrow{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand)}

/* FAQ */
.faq-list{max-width:880px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;cursor:pointer;list-style:none;
  padding:20px 46px 20px 16px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:500;color:var(--brand);
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:2px;background:var(--accent);
}
.faq-answer{padding:0 46px 22px 16px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* CTA */
.cta-band{background:var(--brand);color:#fff;padding:56px 0}
@media(min-width:768px){.cta-band{padding:76px 0}}
.cta-inner{display:flex;flex-direction:column;gap:24px}
@media(min-width:992px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px}}
.cta-band h2{font-size:24px;font-weight:700;letter-spacing:-0.02em;color:#fff}
@media(min-width:768px){.cta-band h2{font-size:28px}}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);max-width:60ch}
.cta-inner .btn{flex:none}

/* 页脚 */
.site-footer{background:var(--surface-alt);border-top:3px solid var(--brand);padding:44px 0 24px;font-size:13px;line-height:1.9;color:var(--ink-2)}
.footer-grid{display:grid;gap:28px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}}
.footer-brand{font-size:18px;font-weight:800;color:var(--brand);letter-spacing:-0.01em}
.footer-desc{margin-top:10px;max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:10px}
.footer-col ul{display:grid;gap:6px}
.footer-col a{color:var(--ink-2);transition:color .18s ease-out}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;color:var(--ink-3);
}

/* roulang page: category4 */
:root{
  --main:#1F6F5C;
  --main-soft:rgba(31,111,92,.08);
  --accent:#F2A33C;
  --accent-deep:#DE8E28;
  --brick:#C8553D;
  --bg:#F7F5F0;
  --alt:#EFEBE2;
  --ink:#1C1B1A;
  --ink2:#5C5852;
  --ink3:#8A857D;
  --line:#E0DAD0;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(28,27,26,.06);
  --sh2:0 4px 14px rgba(28,27,26,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{line-height:1.35}
:focus-visible{outline:2px solid var(--main);outline-offset:2px}
div.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){div.container{padding:0 32px}}

/* ---------- 品牌行 ---------- */
.brand-bar{background:var(--main);color:#fff}
.brand-inner{display:flex;align-items:center;gap:14px;min-height:64px}
.brand-logo{display:flex;align-items:baseline;gap:8px;font-size:20px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.brand-sub{font-size:12px;font-weight:500;letter-spacing:.1em;color:rgba(255,255,255,.7)}
.brand-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{display:none;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24)}
.search-box input{width:150px;border:0;background:transparent;color:#fff;font-size:14px;outline:none}
.search-box input::placeholder{color:rgba(255,255,255,.72)}
.search-box svg{flex:0 0 auto;opacity:.8}
@media (min-width:860px){.search-box{display:flex}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.28);color:#fff}
@media (min-width:860px){.nav-toggle{display:none}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out}
.btn-primary{background:var(--accent);color:#1C1B1A;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border:1px solid var(--main);color:var(--main);background:transparent}
.btn-outline:hover{background:var(--main-soft)}
.btn-onlight{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-onlight:hover{background:rgba(255,255,255,.14)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.textlink{color:var(--main);font-weight:600;font-size:14.5px;text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px;transition:color .18s ease-out}
.textlink:hover{color:var(--accent)}

/* ---------- 频道导航 ---------- */
.channel-bar{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-item{position:relative;flex:0 0 auto;display:flex;align-items:center;height:52px;padding:0 2px;font-size:15px;color:var(--ink2);border-bottom:3px solid transparent;transition:color .18s ease-out,border-color .18s ease-out}
.channel-item:hover{color:var(--accent);border-bottom-color:rgba(242,163,60,.65)}
.channel-item.active{color:var(--main);font-weight:600;border-bottom-color:var(--main)}
@media (max-width:640px){
  .channel-inner{gap:10px;height:auto;padding:10px 0}
  .channel-item{height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:#fff}
  .channel-item:hover{border-color:var(--accent);color:var(--accent)}
  .channel-item.active{background:var(--main-soft);border-color:var(--main);border-bottom-color:var(--main)}
}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--alt)}
.page-hero .hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.32}
.page-hero .hero-mask{position:absolute;inset:0;background:linear-gradient(95deg,rgba(247,245,240,.97) 0%,rgba(247,245,240,.9) 52%,rgba(247,245,240,.72) 100%)}
.hero-inner{position:relative;z-index:2;padding:26px 0 42px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink3);margin-bottom:18px}
.breadcrumb a{color:var(--ink2)}
.breadcrumb a:hover{color:var(--main)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink3)}
h1{font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.3;max-width:24ch}
@media (min-width:768px){h1{font-size:32px;line-height:1.25}}
.hero-sub{margin-top:14px;font-size:16px;color:var(--ink2);max-width:52ch}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--main-soft);color:var(--main);font-size:13px;font-weight:600}
.tag-accent{background:var(--accent);color:#1C1B1A}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--ink2);font-weight:500}

/* ---------- 板块 ---------- */
.section{padding:52px 0}
@media (min-width:768px){.section{padding:84px 0}}
.section-white{background:#fff}
.section-alt{background:var(--alt)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 24px;justify-content:space-between;margin-bottom:30px}
.section-title{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.section-title::before{content:"";flex:0 0 auto;width:4px;height:20px;border-radius:2px;background:var(--main)}
@media (min-width:768px){.section-title{font-size:26px}}
.section-lead{margin-top:14px;font-size:15.5px;color:var(--ink2);max-width:72ch}

/* ---------- 对照表 ---------- */
.compare-wrap{margin-top:6px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow-x:auto;box-shadow:var(--sh1)}
table.compare{width:100%;min-width:760px;border-collapse:collapse}
table.compare thead th{background:var(--main-soft);color:var(--main);font-size:14px;font-weight:600;text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap}
table.compare tbody td{padding:15px 18px;font-size:14.5px;color:var(--ink2);border-bottom:1px solid var(--line);vertical-align:top}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover td{background:#F3EFE6}
table.compare td.scene{color:var(--ink);font-weight:600}
.time-cell{color:var(--main);font-weight:600;white-space:nowrap}
.table-note{margin-top:14px;font-size:13px;color:var(--ink3)}

/* ---------- 自查图文 ---------- */
.check-block{display:grid;gap:26px;align-items:center}
@media (min-width:900px){.check-block{grid-template-columns:5fr 6fr;gap:44px}}
.check-figure{margin:0}
.check-figure img{width:100%;border-radius:var(--r-img);border:1px solid var(--line);object-fit:cover}
.fig-cap{margin-top:10px;font-size:13px;color:var(--ink3);text-align:center}
.step-list{margin-top:22px;border-top:1px solid var(--line)}
.step-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.step-num{flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--main);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.step-body h3{font-size:17px;font-weight:600;margin-bottom:4px}
.step-body p{font-size:14.5px;color:var(--ink2);line-height:1.85}

/* ---------- 要点卡 ---------- */
.point-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:768px){.point-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.point-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 22px 24px;box-shadow:var(--sh1);transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out}
.point-card::after{content:"";position:absolute;top:14px;right:14px;width:8px;height:8px;background:var(--accent);border-radius:2px;opacity:.7}
.point-card:hover{border-color:var(--main);box-shadow:var(--sh2);transform:translateY(-2px)}
.point-icon{width:42px;height:42px;border-radius:10px;background:var(--main-soft);color:var(--main);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.point-card h3{font-size:17.5px;font-weight:600;margin-bottom:8px}
.point-card p{font-size:14.5px;color:var(--ink2);line-height:1.85}
.point-tag{margin-top:14px;display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;border:1px solid var(--line);color:var(--ink3);font-size:12.5px}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);border-left:3px solid transparent;padding-left:0;transition:border-color .18s ease-out,background-color .18s ease-out}
.faq-item[open]{border-left-color:var(--accent);background:rgba(242,163,60,.05)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;padding:18px 18px 18px 16px;font-size:16px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";margin-left:auto;color:var(--main);font-size:18px;line-height:1;flex:0 0 auto;padding-left:12px}
.faq-item[open] summary::after{content:"－";color:var(--accent)}
.faq-item summary:hover{color:var(--main)}
.faq-body{padding:0 22px 20px 16px}
.faq-body p{font-size:15px;line-height:1.85;color:var(--ink2);max-width:72ch}
.faq-body p + p{margin-top:10px}

/* ---------- CTA ---------- */
.cta-band{background:var(--main);color:#fff;padding:48px 0}
@media (min-width:768px){.cta-band{padding:64px 0}}
.cta-inner{display:flex;flex-direction:column;gap:20px;align-items:flex-start}
@media (min-width:900px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}}
.cta-band h2{font-size:22px;font-weight:700;color:#fff;letter-spacing:-.01em}
@media (min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--alt);border-top:3px solid var(--main);padding:42px 0 0;font-size:13px;line-height:1.9}
.footer-grid{display:grid;gap:28px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}}
.footer-brand{font-size:18px;font-weight:800;color:var(--main);margin-bottom:10px;letter-spacing:-.01em}
.footer-desc{color:var(--ink2);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:12px}
.footer-col li{margin-bottom:6px;color:var(--ink2)}
.footer-col a{color:var(--ink2);transition:color .18s ease-out}
.footer-col a:hover{color:var(--main);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
.footer-bottom{margin-top:34px;border-top:1px solid var(--line);padding:16px 0 22px;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;color:var(--ink3);font-size:13px}