/* roulang page: index */
:root{
  --primary:#0E8F7E;
  --primary-deep:#0A6B5E;
  --primary-soft:#5FC7B6;
  --accent:#F0A73C;
  --accent-hot:#FF6F5E;
  --bg:#F5F7F5;
  --bg-alt:#EDF3F1;
  --surface:#FFFFFF;
  --text:#16211F;
  --text-sub:#51625E;
  --text-muted:#8A9793;
  --border:#E2E9E6;
  --divider:#EEF3F1;
  --success:#2FA36B;
  --warning:#E0A320;
  --error:#D9534F;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-xs:6px;
  --shadow-card:0 8px 24px rgba(14,143,126,.08);
  --shadow-hover:0 14px 32px rgba(14,143,126,.16);
  --shadow-nav:0 2px 12px rgba(22,33,31,.06);
  --grad:linear-gradient(135deg,#0E8F7E 0%,#37B3A0 50%,#7FD6C4 100%);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);font-variant-numeric:tabular-nums;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}
::selection{background:rgba(14,143,126,.18);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.container-narrow{max-width:860px;}
.section{padding:80px 0;}
.section--alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.01em;}
.section-head .sub{margin-top:6px;font-size:14px;color:var(--text-sub);}
.section-head .aside{display:flex;align-items:center;gap:12px;}

/* header */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.nav{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.01em;flex:none;}
.brand:hover{color:var(--primary-deep);}
.brand svg{width:30px;height:30px;flex:none;}
.nav-links{display:flex;align-items:center;gap:32px;margin:0 auto;}
.nav-links a{position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;color:var(--text-sub);}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:3px;border-radius:3px;background:var(--grad);transform:translateX(-50%);transition:width .22s ease;}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{width:20px;}
.nav-links a.is-active{color:var(--primary-deep);}
.nav-links a.is-active::after{width:20px;}
.nav-tools{display:flex;align-items:center;gap:12px;flex:none;}
.search-box{position:relative;}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-muted);}
.search-box input{width:220px;height:40px;padding:0 12px 0 38px;border-radius:12px;border:1px solid transparent;background:var(--bg);color:var(--text);font-size:14px;outline:none;transition:all .2s ease;}
.search-box input::placeholder{color:var(--text-muted);}
.search-box input:focus{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.18);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;}
.nav-toggle span{position:relative;display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .24s ease,top .24s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}

.drawer{position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:90;transform:translateX(102%);transition:transform .24s ease;box-shadow:-12px 0 32px rgba(22,33,31,.12);padding:80px 22px 24px;overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer a.drawer-link{display:flex;align-items:center;justify-content:space-between;height:48px;font-size:16px;color:var(--text);border-bottom:1px solid var(--divider);}
.drawer a.drawer-link.is-active{color:var(--primary-deep);font-weight:600;}
.drawer .btn{width:100%;margin-top:20px;}
.drawer-mask{position:fixed;inset:0;background:rgba(22,33,31,.42);z-index:85;opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;white-space:nowrap;}
.btn svg{width:16px;height:16px;}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(14,143,126,.26);}
.btn--primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,143,126,.34);}
.btn--primary:active{transform:scale(.98);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.62);}
.btn--ghost:hover{background:rgba(255,255,255,.16);color:#fff;}
.btn--ghost:active{transform:scale(.98);}
.btn--outline{background:#fff;color:var(--primary-deep);border-color:var(--primary-soft);}
.btn--outline:hover{background:var(--bg-alt);color:var(--primary-deep);}
.btn--outline:active{transform:scale(.98);}
.btn--text{background:none;height:auto;padding:4px 2px;color:var(--primary-deep);font-weight:600;}
.btn--text svg{transition:transform .2s ease;}
.btn--text:hover svg{transform:translateX(3px);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn:disabled{opacity:.5;pointer-events:none;}
.btn.is-on{background:#fff;color:var(--primary-deep);border-color:var(--primary-soft);}

/* hero */
.hero{position:relative;isolation:isolate;overflow:hidden;}
.hero__media{position:absolute;inset:0;z-index:-2;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;background-repeat:no-repeat;}
.hero__veil{position:absolute;inset:0;z-index:-1;background:linear-gradient(135deg,rgba(10,107,94,.94) 0%,rgba(14,143,126,.84) 48%,rgba(55,179,160,.58) 100%);}
.hero__inner{display:grid;grid-template-columns:1.4fr .9fr;gap:48px;align-items:center;padding:72px 0 64px;color:#fff;}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);font-size:12px;font-weight:600;letter-spacing:.02em;}
.hero h1{font-size:42px;line-height:1.25;font-weight:700;margin:20px 0 16px;letter-spacing:-.01em;}
.hero__lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.88);max-width:640px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero__facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.stat-badge{display:inline-flex;align-items:baseline;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);font-size:12px;font-weight:600;color:rgba(255,255,255,.94);letter-spacing:.02em;}
.stat-badge b{font-size:17px;color:#FFD79A;font-weight:700;}
.hero__panel{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:var(--r-lg);padding:24px;backdrop-filter:blur(6px);}
.hero__panel h2{font-size:17px;font-weight:600;color:#fff;margin-bottom:6px;}
.hero__panel p{font-size:13px;color:rgba(255,255,255,.82);}
.hero__panel ul{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.hero__panel li a{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.9);color:var(--text);font-size:14px;font-weight:500;transition:transform .2s ease,background .2s ease;}
.hero__panel li a:hover{background:#fff;transform:translateX(3px);color:var(--primary-deep);}
.hero__panel li a svg{width:14px;height:14px;color:var(--primary);}

/* cover band */
.cover-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cover-card{display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.cover-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.cover-card__media img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .4s ease;}
.cover-card:hover .cover-card__media img{transform:scale(1.04);}
.cover-card__tag{position:absolute;left:14px;top:14px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.94);color:var(--primary-deep);font-size:12px;font-weight:600;letter-spacing:.02em;}
.cover-card__body{display:flex;flex-direction:column;gap:10px;padding:22px;flex:1;}
.cover-card__body h3{font-size:20px;line-height:1.4;font-weight:600;}
.cover-card:hover .cover-card__body h3{color:var(--primary-deep);}
.cover-card__body p{font-size:14px;color:var(--text-sub);}
.cover-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--divider);font-size:13px;color:var(--text-muted);}
.chip{padding:3px 10px;border-radius:999px;background:var(--bg-alt);color:var(--primary-deep);font-size:12px;font-weight:600;letter-spacing:.02em;}

/* axis */
.axis{display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px;}
.axis-item{display:grid;grid-template-columns:40px 1fr 18px;gap:16px;align-items:center;padding:18px 12px;border-bottom:1px solid var(--divider);border-radius:12px;transition:background .2s ease;}
.axis-item:hover{background:var(--bg-alt);}
.axis-num{width:40px;height:40px;border-radius:12px;background:var(--bg-alt);color:var(--primary-deep);display:grid;place-items:center;font-size:15px;font-weight:700;transition:background .2s ease,color .2s ease;}
.axis-item:hover .axis-num{background:var(--grad);color:#fff;}
.axis-item h3{font-size:17px;font-weight:600;line-height:1.4;}
.axis-item:hover h3{color:var(--primary-deep);}
.axis-item p{font-size:13px;color:var(--text-sub);margin-top:2px;}
.axis-arrow{color:var(--primary-soft);transition:transform .2s ease;}
.axis-item:hover .axis-arrow{transform:translateX(3px);color:var(--primary-deep);}

/* feature */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{display:grid;grid-template-columns:38% 1fr;gap:20px;padding:18px;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.feature-card.is-lead{grid-template-columns:44% 1fr;}
.feature-card__media{border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;}
.feature-card.is-lead .feature-card__media{aspect-ratio:4/3.4;}
.feature-card__media img{width:100%;height:100%;object-fit:cover;}
.feature-card__body{display:flex;flex-direction:column;gap:10px;padding:4px 4px 4px 0;}
.feature-card__body h3{font-size:19px;line-height:1.4;font-weight:600;}
.feature-card:hover .feature-card__body h3{color:var(--primary-deep);}
.feature-card__body p{font-size:14px;color:var(--text-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;gap:12px;padding:24px;background:var(--surface);border:1px solid transparent;border-radius:var(--r-md);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#DCE9E5;}
.news-card__tag{align-self:flex-start;}
.news-card__title{font-size:20px;line-height:1.4;font-weight:600;color:var(--text);}
.news-card:hover .news-card__title{color:var(--primary-deep);}
.news-card__desc{font-size:14px;color:var(--text-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--divider);font-size:13px;color:var(--text-muted);}
.news-card__more{color:var(--primary-deep);font-weight:600;}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:200px;padding:32px;background:var(--surface);border:1px dashed var(--border);border-radius:var(--r-lg);text-align:center;}
.empty-state svg{width:44px;height:44px;color:var(--primary-soft);}
.empty-state p{font-size:16px;color:var(--text-sub);}

/* recommend */
.rec-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:24px;align-items:start;}
.rec-main{display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;}
.rec-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.rec-main__media{aspect-ratio:16/9;overflow:hidden;}
.rec-main__media img{width:100%;height:100%;object-fit:cover;}
.rec-main__body{padding:24px;display:flex;flex-direction:column;gap:10px;}
.rec-main__body h3{font-size:21px;font-weight:600;line-height:1.4;}
.rec-main:hover .rec-main__body h3{color:var(--primary-deep);}
.rec-main__body p{font-size:14px;color:var(--text-sub);}
.rec-side{display:flex;flex-direction:column;gap:16px;}
.rec-item{display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:center;padding:14px;background:var(--surface);border-radius:var(--r-md);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;}
.rec-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.rec-item__media{width:64px;height:64px;border-radius:var(--r-sm);overflow:hidden;}
.rec-item__media img{width:100%;height:100%;object-fit:cover;}
.rec-item h3{font-size:15px;font-weight:600;line-height:1.5;}
.rec-item:hover h3{color:var(--primary-deep);}
.rec-item span{font-size:13px;color:var(--text-muted);}

/* cta band */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding:34px;background:var(--bg-alt);border-radius:var(--r-lg);}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.35;}
.cta-band p{font-size:14px;color:var(--text-sub);margin-top:8px;max-width:640px;}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* faq */
.faq{display:flex;flex-direction:column;gap:14px;}
.faq-item{background:var(--surface);border-radius:var(--r-md);box-shadow:var(--shadow-card);overflow:hidden;}
.faq-q{margin:0;}
.faq-btn{display:flex;align-items:center;gap:14px;width:100%;padding:24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);}
.faq-btn:hover{color:var(--primary-deep);}
.faq-idx{flex:none;width:26px;height:26px;border-radius:50%;background:var(--bg-alt);color:var(--primary-deep);font-size:12px;font-weight:700;display:grid;place-items:center;}
.faq-btn span.txt{flex:1;}
.faq-ic{flex:none;width:16px;height:16px;color:var(--primary);transition:transform .2s ease;}
.faq-item.is-open .faq-ic{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a p{padding:0 24px 22px 64px;font-size:15px;line-height:1.8;color:var(--text-sub);}

/* footer */
.site-footer{background:#16211F;color:#B9C7C3;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;}
.footer-brand svg{width:28px;height:28px;}
.site-footer .about{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB0AC;max-width:320px;}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links a{display:block;padding:5px 0;font-size:14px;color:#9FB0AC;}
.footer-links a:hover{color:#fff;}
.footer-note{font-size:13px;color:#8A9793;margin-top:10px;}
.subscribe{display:flex;gap:10px;margin-top:14px;}
.subscribe input{flex:1;min-width:0;height:48px;padding:0 14px;border-radius:12px;border:1px solid #2C3A37;background:#1E2B29;color:#fff;font-size:14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;}
.subscribe input::placeholder{color:#7C8D89;}
.subscribe input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.25);}
.footer-bottom{margin-top:48px;padding:20px 0;border-top:1px solid #26332F;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A9793;}
.footer-bottom a{color:#8A9793;}
.footer-bottom a:hover{color:#fff;}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap;}

@media (max-width:1279px){
  .hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .nav{height:64px;}
  .section{padding:64px 0;}
  .hero__inner{grid-template-columns:1fr;gap:36px;padding:56px 0 52px;}
  .cover-grid{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .hero h1{font-size:28px;}
  .hero__inner{padding:44px 0 40px;}
  .hero__actions .btn{width:100%;}
  .section-head h2{font-size:22px;}
  .cover-grid{grid-template-columns:1fr;}
  .axis{grid-template-columns:1fr;gap:0;}
  .axis-item{grid-template-columns:34px 1fr 16px;gap:12px;padding:16px 10px;}
  .feature-card,.feature-card.is-lead{grid-template-columns:1fr;gap:14px;}
  .feature-card__media,.feature-card.is-lead .feature-card__media{aspect-ratio:16/9;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1;}
  .faq-btn{padding:18px;font-size:16px;}
  .faq-a p{padding:0 18px 18px 56px;}
  .footer-grid{grid-template-columns:1fr;}
  .subscribe{flex-direction:column;}
  .subscribe .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .hero h1{font-size:26px;}
  .stat-badge{padding:6px 12px;}
  .btn{height:42px;padding:0 16px;}
}

/* roulang page: article */
:root{
  --primary:#0E8F7E;
  --primary-deep:#0A6B5E;
  --primary-soft:#5FC7B6;
  --gradient-brand:linear-gradient(135deg,#0E8F7E 0%,#37B3A0 50%,#7FD6C4 100%);
  --accent:#F0A73C;
  --accent-hot:#FF6F5E;
  --bg:#F5F7F5;
  --bg-alt:#EDF3F1;
  --surface:#FFFFFF;
  --text:#16211F;
  --text-sub:#51625E;
  --text-muted:#8A9793;
  --border:#E2E9E6;
  --divider:#EEF3F1;
  --success:#2FA36B;
  --warning:#E0A320;
  --danger:#D9534F;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-btn:12px;
  --shadow-card:0 8px 24px rgba(14,143,126,.08);
  --shadow-hover:0 14px 32px rgba(14,143,126,.16);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
h1{font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  box-shadow:0 1px 0 var(--border);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(22,33,31,.08)}
.nav{display:flex;align-items:center;gap:20px;height:var(--nav-h);min-height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:18px;font-weight:700;color:var(--text)}
.brand:hover{color:var(--text);text-decoration:none}
.brand svg{width:30px;height:30px;flex:0 0 auto}
.brand span{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:var(--nav-h);
  font-size:15px;font-weight:500;color:var(--text-sub);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:20px;width:0;height:3px;border-radius:3px;
  background:var(--gradient-brand);transform:translateX(-50%);transition:width .2s ease;
}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--primary-deep)}
.nav-links a.is-active::after{width:20px}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  border-radius:var(--r-btn);background:var(--bg);border:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.18)}
.search-box svg{width:18px;height:18px;color:var(--text-muted);flex:0 0 auto}
.search-box input{width:100%;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text)}
.search-box input::placeholder{color:var(--text-muted)}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;border:0;border-radius:var(--r-sm);
  background:transparent;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;width:20px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .22s ease,background .22s ease,top .22s ease;
}
.nav-toggle span{top:50%;left:50%;margin:-1px 0 0 -10px}
.nav-toggle span::before{content:"";left:0;top:-6px}
.nav-toggle span::after{content:"";left:0;top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 18px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,filter .2s ease-out;
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn--primary{background:var(--gradient-brand);color:#fff;box-shadow:0 6px 16px rgba(14,143,126,.22)}
.btn--primary:hover{color:#fff;text-decoration:none;filter:brightness(1.06);box-shadow:0 10px 24px rgba(14,143,126,.28);transform:translateY(-1px)}
.btn--secondary{background:#fff;color:var(--primary-deep);border-color:var(--primary)}
.btn--secondary:hover{background:var(--bg-alt);color:var(--primary-deep);text-decoration:none}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.btn--sm{height:36px;padding:0 14px;font-size:14px}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn-text{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--primary-deep)}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease}
.btn-text:hover{text-decoration:none;color:var(--primary-deep)}
.btn-text:hover svg{transform:translateX(3px)}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;background:var(--bg-alt);color:var(--primary-deep);
}
.badge--accent{background:rgba(240,167,60,.16);color:#A96D0C}
.badge--soft{background:#fff;border:1px solid var(--border);color:var(--text-sub)}

/* ---------- 文章页头部 ---------- */
.article-hero{background:var(--bg-alt);border-bottom:1px solid var(--border);padding:44px 0 34px}
.article-title{font-size:42px;line-height:1.25;letter-spacing:-.01em;max-width:920px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px;font-size:14px;color:var(--text-sub)}
.article-meta .sep{color:var(--text-muted)}
.article-meta time{color:var(--text-sub)}
.fav-btn{
  margin-left:6px;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--primary);
  background:#fff;color:var(--primary-deep);font-size:13px;font-weight:600;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.fav-btn:hover{background:var(--bg-alt)}
.fav-btn.is-on{background:var(--gradient-brand);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(14,143,126,.24)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:14px;color:var(--text-muted)}
.breadcrumb .container{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.breadcrumb a{color:var(--text-sub)}
.breadcrumb a:hover{color:var(--primary-deep)}
.crumb-current{max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-muted)}

/* ---------- 主体布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,780px) 280px;gap:48px;
  justify-content:center;padding:32px 0 0;align-items:start;
}
.article-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--shadow-card);min-width:0;
}
.article-banner img{width:100%;aspect-ratio:16/8;object-fit:cover;object-position:center;border-radius:var(--r-md)}
.article-body h2{
  position:relative;font-size:28px;line-height:1.35;margin:40px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--gradient-brand);
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body p{font-size:17px;line-height:1.9;margin:0 0 1.1em;color:var(--text)}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;font-size:17px;line-height:1.85}
.article-body ul li::before{
  content:"";position:absolute;left:3px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--primary-soft);
}
.article-body ol{counter-reset:item;margin:0 0 1.2em}
.article-body ol li{
  position:relative;padding-left:36px;margin-bottom:12px;font-size:17px;line-height:1.85;counter-increment:item;
}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;width:22px;height:22px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;
  background:var(--bg-alt);color:var(--primary-deep);
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:var(--bg-alt);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text-sub);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--primary-deep);text-decoration:underline;text-underline-offset:3px}
.article-body img{width:100%;border-radius:var(--r-md);margin:20px 0}
.article-body code{
  background:var(--bg-alt);border-radius:6px;padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-alt);color:var(--primary-deep);font-weight:600}
.article-figure{margin:28px 0 8px}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;object-position:center;border-radius:var(--r-md)}
.article-figure figcaption{font-size:13px;line-height:1.6;color:var(--text-muted);margin-top:10px;text-align:center}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 16px;
}
.empty-state svg{width:56px;height:56px;color:var(--primary-soft)}
.empty-state p{margin:0;font-size:16px;color:var(--text-sub)}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:calc(var(--nav-h) + 24px)}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow-card)}
.side-title{font-size:16px;font-weight:700;padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--divider)}
.toc a{
  display:block;padding:7px 0 7px 12px;border-left:2px solid var(--divider);
  font-size:14px;line-height:1.55;color:var(--text-sub);
  transition:color .2s ease,border-color .2s ease;
}
.toc a:hover{color:var(--primary-deep);border-left-color:var(--primary-soft);text-decoration:none}
.toc a.is-current{color:var(--primary-deep);border-left-color:var(--primary);font-weight:600}
.toc-empty{font-size:13px;color:var(--text-muted)}
.side-links{display:flex;flex-direction:column;gap:10px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:14px;color:var(--text-sub);padding:8px 10px;border-radius:var(--r-sm);
  background:var(--bg);transition:background .2s ease,color .2s ease;
}
.side-links a:hover{background:var(--bg-alt);color:var(--primary-deep);text-decoration:none}
.side-links a svg{width:14px;height:14px;color:var(--text-muted);flex:0 0 auto}

/* ---------- 板块通用 ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:28px;line-height:1.35}
.section-sub{font-size:15px;color:var(--text-sub);margin:10px 0 0}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;align-items:center;gap:16px;padding:16px;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);text-decoration:none}
.related-card img{width:72px;height:72px;aspect-ratio:1/1;object-fit:cover;object-position:center;border-radius:var(--r-btn);flex:0 0 auto}
.related-card h3{font-size:16px;font-weight:600;line-height:1.45;margin-bottom:6px;color:var(--text);transition:color .2s ease}
.related-card:hover h3{color:var(--primary-deep)}
.related-card .meta{font-size:13px;color:var(--text-muted)}

/* ---------- 返回入口 ---------- */
.article-actions{
  display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;
  padding:44px 24px 8px;
}

/* ---------- CTA 条 ---------- */
.cta-band{padding:8px 0 72px}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--bg-alt);border-radius:var(--r-lg);padding:32px 36px;
}
.cta-inner h2{font-size:22px;margin-bottom:8px}
.cta-inner p{margin:0;font-size:15px;color:var(--text-sub)}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:50;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-card);color:var(--primary-deep);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,background .2s ease,transform .2s ease;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{background:var(--bg-alt);transform:translateY(-2px)}
.to-top svg{width:20px;height:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:#16211F;color:#8A9793;padding:56px 0 24px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.9fr 1fr 1fr 1.5fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-size:18px;font-weight:700}
.footer-brand svg{width:28px;height:28px;flex:0 0 auto}
.site-footer h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.site-footer p{margin:0}
.site-footer .about{font-size:14px;line-height:1.85;color:#8A9793;max-width:360px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.site-footer a{font-size:14px;color:#8A9793}
.site-footer a:hover{color:#fff;text-decoration:none}
.footer-note{font-size:14px;margin-bottom:12px;color:#8A9793}
.subscribe{display:flex;gap:10px}
.subscribe input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid #2B3A36;background:#1E2C29;color:#fff;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe input::placeholder{color:#6E7C78}
.subscribe input:focus{border-color:var(--primary-soft);box-shadow:0 0 0 3px rgba(95,199,182,.18)}
.subscribe .btn{height:44px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid #24322F;font-size:13px;color:#8A9793;
}
.legal{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:24px}
  .search-box{width:180px}
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
}
@media (max-width:1023px){
  .article-title{font-size:34px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-side{position:static;order:2;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 260px}
  .article-body{padding:32px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;z-index:70;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:#fff;padding:8px 18px 24px;border-bottom:1px solid var(--border);
    box-shadow:0 14px 28px rgba(22,33,31,.10);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{height:48px;font-size:16px;border-bottom:1px solid var(--divider);padding:0 4px}
  .nav-links a::after{display:none}
  .search-box{display:none}
  .nav-toggle{display:block}
}
@media (max-width:767px){
  :root{--nav-h:60px}
  .container{padding:0 18px}
  .brand{font-size:16px}
  .brand svg{width:26px;height:26px}
  .article-hero{padding:32px 0 24px}
  .article-title{font-size:28px}
  .article-body{padding:22px;border-radius:var(--r-md)}
  .article-body h2{font-size:22px;margin:32px 0 14px}
  .article-body h3{font-size:18px}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16px}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:24px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
  .subscribe{flex-wrap:wrap}
  .subscribe .btn{width:100%}
  .to-top{display:none}
  .crumb-current{max-width:180px}
}
@media (max-width:479px){
  .article-title{font-size:24px}
  .article-meta{font-size:13px;gap:8px}
  .fav-btn{margin-left:0}
  .btn{height:44px;padding:0 16px}
  .related-card img{width:60px;height:60px}
}

/* roulang page: category1 */
:root{
  --primary:#0E8F7E;
  --primary-deep:#0A6B5E;
  --primary-soft:#5FC7B6;
  --gradient-brand:linear-gradient(135deg,#0E8F7E 0%,#37B3A0 52%,#7FD6C4 100%);
  --accent:#F0A73C;
  --accent-hot:#FF6F5E;
  --bg:#F5F7F5;
  --bg-alt:#EDF3F1;
  --surface:#FFFFFF;
  --text:#16211F;
  --text-sub:#51625E;
  --text-muted:#8A9793;
  --border:#E2E9E6;
  --divider:#EEF3F1;
  --success:#2FA36B;
  --warn:#E0A320;
  --error:#D9534F;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(14,143,126,.08);
  --sh-hover:0 14px 32px rgba(14,143,126,.16);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out}
a:hover{color:var(--primary)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35}
h1{font-size:42px;line-height:1.25}
h2{font-size:28px;line-height:1.35}
h3{font-size:20px;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  box-shadow:0 1px 0 var(--border);
  transition:box-shadow .25s ease-out;
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(22,33,31,.06),0 1px 0 var(--border)}
.nav{display:flex;align-items:center;gap:32px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none;font-size:18px;font-weight:700;color:var(--text)}
.brand svg{width:32px;height:32px;flex:none}
.brand:hover{color:var(--primary-deep)}
.nav-links{display:flex;align-items:center;gap:32px;margin-right:auto}
.nav-links a{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--text-sub)}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:3px;border-radius:3px;
  background:var(--gradient-brand);transform:translateX(-50%);transition:width .2s ease-out;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--primary-deep);font-weight:600}
.nav-links a.is-active::after{width:20px}
.nav-tools{display:flex;align-items:center;gap:14px;flex:none}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  background:var(--bg);border:1px solid transparent;border-radius:var(--r-btn);
  transition:background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.search-box svg{width:16px;height:16px;color:var(--text-muted);flex:none}
.search-box input{width:100%;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--text-muted)}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.18)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-btn);
  place-items:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:background-color .2s ease-out}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .24s ease-out;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.is-open .nav-toggle span{background:transparent}
.site-header.is-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-header.is-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;text-align:center;
  transition:background-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,filter .2s ease-out;
}
.btn svg{width:16px;height:16px;flex:none}
.btn--primary{background:var(--gradient-brand);color:#fff;box-shadow:0 6px 18px rgba(14,143,126,.24)}
.btn--primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 24px rgba(14,143,126,.3)}
.btn--outline{background:#fff;color:var(--primary-deep);border-color:var(--primary-soft)}
.btn--outline:hover{background:var(--bg-alt);color:var(--primary-deep)}
.btn--ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.7)}
.btn--ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.btn--text{height:auto;padding:0 2px;background:none;color:var(--primary-deep)}
.btn--text:hover{color:var(--primary)}
.btn--text svg{transition:transform .2s ease-out}
.btn--text:hover svg{transform:translateX(3px)}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.5;pointer-events:none}

/* ============ 分类页头 ============ */
.page-head{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background:linear-gradient(180deg,#EDF3F1 0%,#F5F7F5 100%);
  border-bottom:1px solid var(--border);
}
.page-head::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(95,199,182,.30),rgba(95,199,182,0) 68%);
  pointer-events:none;
}
.page-head__inner{position:relative;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--border);
  font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--primary-deep);
  box-shadow:var(--sh-card);margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.page-head h1{margin-bottom:14px}
.page-head__desc{font-size:17px;color:var(--text-sub);max-width:680px}
.page-head__badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--soft{background:var(--bg-alt);color:var(--primary-deep)}
.badge--data{background:#fff;border:1px solid var(--border);color:var(--text-sub);box-shadow:var(--sh-card)}
.badge--data b{color:var(--primary-deep);font-weight:700}
.badge--accent{background:rgba(240,167,60,.16);color:#9A6410}

/* ============ 面包屑 ============ */
.crumb{padding:18px 0 0;font-size:14px;color:var(--text-muted)}
.crumb a{color:var(--text-sub)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{margin:0 8px;color:var(--text-muted)}
.crumb .current{color:var(--text-muted)}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section--alt{background:var(--bg-alt)}
.section--last{padding-bottom:88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head__sub{margin-top:8px;font-size:15px;color:var(--text-sub)}
.section-note{font-size:15px;color:var(--text-sub);max-width:760px;margin-bottom:28px}

/* ============ 编号轴长列表 ============ */
.axis-list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:48px;border-top:1px solid var(--divider);
}
.axis-item{border-bottom:1px solid var(--divider)}
.axis-item > a{
  display:flex;align-items:center;gap:16px;
  min-height:64px;padding:16px 12px 16px 6px;border-radius:var(--r-sm);
  transition:background-color .2s ease-out;
}
.axis-item > a:hover{background:#fff}
.axis-num{
  width:40px;height:40px;flex:none;display:grid;place-items:center;
  border-radius:var(--r-sm);background:rgba(14,143,126,.10);
  color:var(--primary-deep);font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;
  transition:background .2s ease-out,color .2s ease-out;
}
.axis-item > a:hover .axis-num{background:var(--gradient-brand);color:#fff}
.axis-body{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0}
.axis-title{font-size:17px;font-weight:600;color:var(--text);transition:color .2s ease-out}
.axis-item > a:hover .axis-title{color:var(--primary-deep)}
.axis-desc{font-size:14px;line-height:1.65;color:var(--text-sub)}
.axis-arrow{width:18px;height:18px;flex:none;color:var(--text-muted);transition:color .2s ease-out,transform .2s ease-out}
.axis-item > a:hover .axis-arrow{color:var(--primary);transform:translateX(3px)}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;
  border-radius:var(--r-lg);box-shadow:var(--sh-card);
}
.split__body h2{margin-bottom:14px}
.split__lead{color:var(--text-sub);margin-bottom:22px}
.check-list{display:grid;gap:20px}
.check-list li{display:flex;gap:14px}
.check-list .dot{
  width:26px;height:26px;flex:none;margin-top:3px;display:grid;place-items:center;
  border-radius:50%;background:var(--bg-alt);color:var(--primary-deep);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.check-list b{display:block;font-size:16px;font-weight:600;color:var(--text)}
.check-list p{font-size:15px;color:var(--text-sub);margin-top:4px}

/* ============ 步骤条 ============ */
.step-bar{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-card);
}
.step{padding:28px 26px;border-right:1px solid var(--divider)}
.step:last-child{border-right:0}
.step__idx{font-size:30px;font-weight:700;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums}
.step h3{font-size:18px;margin:14px 0 8px}
.step p{font-size:15px;color:var(--text-sub)}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-card)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease-out;
}
.faq-q:hover{color:var(--primary-deep)}
.faq-idx{
  width:26px;height:26px;flex:none;display:grid;place-items:center;border-radius:50%;
  background:var(--bg-alt);color:var(--primary-deep);font-size:12px;font-weight:700;
}
.faq-icon{width:18px;height:18px;flex:none;margin-left:auto;color:var(--text-muted);transition:transform .2s ease-out}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease-out}
.faq-a p{padding:0 24px 22px 64px;font-size:15px;line-height:1.8;color:var(--text-sub)}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:36px 40px;border-radius:var(--r-lg);background:var(--bg-alt);
  border:1px solid var(--border);
}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--text-sub);max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}
.back-home{display:flex;justify-content:center;margin-top:28px}

/* ============ 页脚 ============ */
.site-footer{background:#16211F;color:#C9D4D1;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:17px;font-weight:700;color:#fff}
.footer-brand svg{width:30px;height:30px;flex:none}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#C9D4D1}
.footer-links a:hover{color:#7FD6C4}
.about{font-size:14px;line-height:1.8;color:#9FB0AC;margin:0}
.footer-note{font-size:14px;line-height:1.7;color:#9FB0AC;margin:0 0 14px}
.subscribe{display:flex;gap:10px}
.subscribe input{
  flex:1;min-width:0;height:48px;padding:0 14px;font-size:14px;
  color:#fff;background:#1E2C29;border:1px solid #2A3A36;border-radius:var(--r-btn);
  outline:none;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.subscribe input::placeholder{color:#7C8C88}
.subscribe input:focus{border-color:var(--primary-soft);box-shadow:0 0 0 3px rgba(95,199,182,.18)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9793;
}
.legal{display:flex;gap:18px;flex-wrap:wrap}
.legal a{font-size:13px;color:#8A9793}
.legal a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  h1{font-size:34px}
  .section{padding:64px 0}
  .split{gap:40px}
}
@media (max-width:1023px){
  .nav-links,.search-box{display:none}
  .nav-toggle{display:grid}
  .site-header.is-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:absolute;left:0;right:0;top:100%;
    padding:8px 24px 20px;background:#fff;
    border-top:1px solid var(--border);box-shadow:0 12px 28px rgba(22,33,31,.10);
  }
  .site-header.is-open .nav-links a{
    padding:15px 0;font-size:16px;border-bottom:1px solid var(--divider);
  }
  .site-header.is-open .nav-links a::after{display:none}
  .site-header.is-open .nav-links a:last-child{border-bottom:0}
  .page-head{padding:48px 0 42px}
  .axis-list{grid-template-columns:1fr;column-gap:0}
  .split{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .step-bar{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--divider)}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .nav{height:60px;gap:16px}
  .brand{font-size:16px}
  .brand svg{width:28px;height:28px}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .section{padding:48px 0}
  .section--last{padding-bottom:56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .page-head{padding:38px 0 34px}
  .page-head__desc{font-size:16px}
  .axis-item > a{padding:14px 8px 14px 0;gap:12px}
  .axis-title{font-size:16px}
  .cta-band{padding:28px 22px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .faq-a p{padding:0 20px 20px 20px}
  .faq-q{padding:18px 20px;font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .subscribe{flex-direction:column}
  .subscribe .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:12px}
}
@media (max-width:479px){
  .page-head__badges{gap:8px}
  .badge{font-size:11px;padding:5px 10px}
  .step{padding:22px 20px}
}

/* roulang page: category2 */
:root{
  --primary:#0E8F7E;
  --primary-deep:#0A6B5E;
  --primary-soft:#5FC7B6;
  --gradient-brand:linear-gradient(135deg,#0E8F7E 0%,#37B3A0 52%,#7FD6C4 100%);
  --accent:#F0A73C;
  --accent-hot:#FF6F5E;
  --bg:#F5F7F5;
  --bg-alt:#EDF3F1;
  --surface:#FFFFFF;
  --text:#16211F;
  --text-sub:#51625E;
  --text-muted:#8A9793;
  --border:#E2E9E6;
  --divider:#EEF3F1;
  --success:#2FA36B;
  --warn:#E0A320;
  --danger:#D9534F;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-card:0 8px 24px rgba(14,143,126,.08);
  --shadow-hover:0 14px 32px rgba(14,143,126,.16);
  --shadow-nav:0 2px 12px rgba(22,33,31,.06);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:var(--primary-deep);text-decoration:none;text-underline-offset:3px;transition:color .2s ease}
a:hover{color:var(--primary);text-decoration:underline}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
h1{font-size:42px;line-height:1.25}
h2{font-size:28px}
h3{font-size:20px;font-weight:600;line-height:1.4}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:860px}
.section{padding:80px 0}
.section--alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head p{margin:8px 0 0;color:var(--text-sub);font-size:15px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--primary-deep);background:var(--bg-alt);border-radius:999px;padding:4px 12px;margin-bottom:14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--border);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.nav{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text);text-decoration:none}
.brand svg{width:30px;height:30px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:28px;margin:0 auto}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--text-sub);padding:6px 2px}
.nav-links a::after{content:"";position:absolute;left:50%;transform:translateX(-50%) scaleX(0);bottom:-6px;width:20px;height:3px;border-radius:999px;background:var(--gradient-brand);transition:transform .2s ease}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-links a.is-active{color:var(--primary-deep);font-weight:600}
.nav-links a.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;border-radius:var(--radius-btn);background:var(--bg);border:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.search-box svg{width:18px;height:18px;color:var(--text-muted);flex:0 0 auto}
.search-box input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--text);outline:none}
.search-box input::placeholder{color:var(--text-muted)}
.search-box:focus-within{background:var(--surface);border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.18)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:var(--radius-btn);background:var(--surface);cursor:pointer;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--text);content:"";transition:transform .24s ease,opacity .24s ease}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border:0;border-radius:var(--radius-btn);font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;text-decoration:none}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn:hover{text-decoration:none}
.btn--primary{background:var(--gradient-brand);color:#fff;box-shadow:0 8px 20px rgba(14,143,126,.22)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,143,126,.28);color:#fff}
.btn--ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
.btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn--outline{background:var(--surface);color:var(--primary-deep);border:1px solid var(--primary)}
.btn--outline:hover{background:var(--bg-alt);color:var(--primary-deep);transform:translateY(-1px)}
.btn--text{height:auto;padding:0;background:transparent;color:var(--primary-deep);font-weight:600}
.btn--text:hover{gap:11px;color:var(--primary)}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.5;pointer-events:none}

/* ---------- Badges & tags ---------- */
.badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.02em;padding:6px 12px;border-radius:999px;font-variant-numeric:tabular-nums}
.badge--amber{background:var(--accent);color:#3B2705}
.badge--glass{background:rgba(255,255,255,.92);color:var(--primary-deep);border:1px solid rgba(255,255,255,.7)}
.badge--soft{background:var(--bg-alt);color:var(--primary-deep)}
.tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--primary-deep);background:var(--bg-alt);border-radius:999px;padding:4px 10px;transition:background .2s ease}
a.tag:hover{background:#DCEBE7;text-decoration:none}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:20px 0 0;font-size:14px;color:var(--text-muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--border)}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--text-sub)}
.breadcrumb a:hover{color:var(--primary-deep)}
.breadcrumb [aria-current="page"]{color:var(--text-muted)}

/* ---------- Hero cover ---------- */
.hero-cover{padding:24px 0 0}
.cover-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:420px;display:flex;align-items:flex-end;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center 42%;box-shadow:0 18px 44px rgba(14,143,126,.18)}
.cover-card::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(14,143,126,.88) 0%,rgba(55,179,160,.78) 48%,rgba(127,214,196,.5) 100%)}
.cover-inner{position:relative;padding:40px 40px 36px;width:100%;max-width:820px}
.cover-inner h1{color:#fff;margin-bottom:14px}
.cover-inner .lead{color:rgba(255,255,255,.88);font-size:16px;margin:0 0 22px;max-width:620px}
.cover-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.cover-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Entry list ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.entry-card{position:relative;display:flex;gap:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D5E5E1}
.entry-card .thumb{flex:0 0 40%;aspect-ratio:4/3;border-radius:var(--radius-sm);overflow:hidden}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:center}
.entry-card .body{flex:1;min-width:0;display:flex;flex-direction:column}
.entry-card h3{margin:8px 0 8px;color:var(--text)}
.entry-card:hover h3{color:var(--primary-deep)}
.entry-card .desc{font-size:14px;color:var(--text-sub);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 12px}
.entry-card .meta{margin-top:auto;font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:12px;font-variant-numeric:tabular-nums}
.entry-card .link-cover{position:absolute;inset:0;border-radius:var(--radius-md)}

/* ---------- Z editorial blocks ---------- */
.zrow{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.zrow + .zrow{margin-top:72px}
.zrow--reverse .zmedia{order:2}
.zmedia{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:16/11;box-shadow:var(--shadow-card)}
.zmedia img{width:100%;height:100%;object-fit:cover}
.zmedia .float-badge{position:absolute;right:16px;bottom:16px}
.ztext h2{margin-bottom:14px}
.ztext p{color:var(--text-sub)}
.checks{margin:20px 0 24px;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.checks svg{width:20px;height:20px;flex:0 0 auto;margin-top:4px;color:var(--primary)}

/* ---------- Points cards (2 columns) ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.point-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.point-card .num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);background:var(--bg-alt);color:var(--primary-deep);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;margin-bottom:14px}
.point-card h3{margin-bottom:10px}
.point-card p{margin:0;font-size:15px;color:var(--text-sub)}
.point-card .note{display:block;margin-top:14px;font-size:13px;color:var(--text-muted)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:16px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-card);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:22px 24px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--text);cursor:pointer}
.faq-q .idx{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--bg-alt);color:var(--primary-deep);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.faq-q .chev{margin-left:auto;width:18px;height:18px;color:var(--text-muted);transition:transform .2s ease}
.faq-q[aria-expanded="true"] .chev{transform:rotate(180deg)}
.faq-a{padding:0 24px 22px 64px;font-size:15px;line-height:1.8;color:var(--text-sub)}
.faq-a[hidden]{display:none}

/* ---------- CTA band ---------- */
.cta-band{background:var(--bg-alt);border-radius:var(--radius-lg);padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--text-sub);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:#16211F;color:#C9D4D1;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand svg{width:28px;height:28px}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.site-footer .about{font-size:14px;color:#93A5A1;margin:0;max-width:340px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#C9D4D1}
.footer-links a:hover{color:#7FD6C4;text-decoration:none}
.footer-note{font-size:14px;color:#93A5A1;margin:0 0 14px}
.subscribe{display:flex;gap:10px;flex-wrap:wrap}
.subscribe input{flex:1 1 160px;height:44px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid #2C3A37;background:#1E2B28;color:#fff;font-size:14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.subscribe input::placeholder{color:#7C8D89}
.subscribe input:focus{border-color:var(--primary-soft);box-shadow:0 0 0 3px rgba(14,143,126,.28)}
.subscribe .btn{height:44px}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid #26332F;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A9793}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:#8A9793}
.footer-bottom a:hover{color:#fff;text-decoration:none}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .cover-inner{padding:36px 32px 32px}
}
@media (max-width:1023px){
  .search-box{display:none}
  .section{padding:64px 0}
  .entry-grid{grid-template-columns:1fr}
  .zrow{grid-template-columns:1fr;gap:28px}
  .zrow--reverse .zmedia{order:0}
  .zrow + .zrow{margin-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .nav{height:60px}
  .brand{font-size:16px}
  .nav-links{position:fixed;top:60px;left:0;right:0;bottom:0;background:var(--surface);flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 24px;margin:0;transform:translateX(-100%);transition:transform .24s ease;overflow-y:auto;z-index:55}
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{width:100%;line-height:48px;font-size:16px;border-bottom:1px solid var(--divider);padding:0}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--primary-deep)}
  .nav-toggle{display:block}
  .nav-tools{margin-left:auto}
  .nav-tools .btn--sm{padding:0 12px;font-size:13px}
  h1{font-size:34px}
  .cover-card{min-height:360px}
  .cover-inner{padding:28px 24px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cover-card{min-height:320px}
  .cover-inner h1{font-size:26px}
  .entry-card{flex-direction:column;gap:14px}
  .entry-card .thumb{flex:0 0 auto;width:100%}
  .point-grid{grid-template-columns:1fr}
  .faq-a{padding-left:24px}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .subscribe{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .nav-tools .btn--sm{display:none}
  .cover-actions{width:100%}
  .cover-actions .btn{width:100%}
  .entry-card{padding:14px}
}

/* roulang page: category3 */
:root{
  --primary:#0E8F7E;
  --primary-deep:#0A6B5E;
  --primary-soft:#5FC7B6;
  --accent:#F0A73C;
  --accent-hot:#FF6F5E;
  --bg:#F5F7F5;
  --bg-alt:#EDF3F1;
  --surface:#FFFFFF;
  --text:#16211F;
  --text-sub:#51625E;
  --text-muted:#8A9793;
  --border:#E2E9E6;
  --divider:#EEF3F1;
  --success:#2FA36B;
  --warning:#E0A320;
  --error:#D9534F;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-sm:0 8px 24px rgba(14,143,126,.08);
  --shadow-md:0 14px 32px rgba(14,143,126,.16);
  --grad:linear-gradient(135deg,#0E8F7E 0%,#37B3A0 50%,#7FD6C4 100%);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s ease,text-underline-offset .2s ease;}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
svg{flex:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--border);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(22,33,31,.06);}
.nav{display:flex;align-items:center;gap:28px;height:var(--header-h);}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--text);font-size:18px;font-weight:700;letter-spacing:.01em;}
.brand:hover{color:var(--primary-deep);text-decoration:none;}
.brand svg{width:30px;height:30px;}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:8px;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-sub);
  padding:6px 2px;line-height:1.4;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:-4px;
  width:0;height:3px;border-radius:999px;
  background:var(--grad);
  transform:translateX(-50%);
  transition:width .22s ease;
}
.nav-links a:hover{color:var(--text);text-decoration:none;}
.nav-links a:hover::after{width:20px;}
.nav-links a.is-active{color:var(--primary-deep);font-weight:600;}
.nav-links a.is-active::after{width:20px;}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:var(--bg);border:1px solid transparent;border-radius:var(--radius-btn);
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box svg{width:17px;height:17px;color:var(--text-muted);}
.search-box input{width:100%;border:0;background:transparent;font-size:14px;outline:none;}
.search-box input::placeholder{color:var(--text-muted);}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.18);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  align-items:center;justify-content:center;
  border:1px solid var(--border);background:#fff;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .24s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.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;line-height:1;
  white-space:nowrap;cursor:pointer;
  transition:transform .18s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn svg{width:17px;height:17px;transition:transform .2s ease;}
.btn:hover{text-decoration:none;}
.btn:active{transform:scale(.98);}
.btn:disabled{opacity:.5;pointer-events:none;}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(14,143,126,.22);}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,143,126,.28);color:#fff;}
.btn--outline{background:#fff;color:var(--primary-deep);border:1px solid var(--primary-soft);}
.btn--outline:hover{background:var(--bg-alt);color:var(--primary-deep);transform:translateY(-1px);}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.6);}
.btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn--text{height:auto;padding:0;color:var(--primary-deep);background:none;}
.btn--text:hover{color:var(--primary);}
.btn--text:hover svg{transform:translateX(3px);}
.btn--sm{height:40px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--bg-alt);color:var(--primary-deep);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag--accent{background:rgba(240,167,60,.16);color:#9A6413;}
.badge{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:var(--radius-md);
  background:#fff;border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.badge .num{font-size:22px;font-weight:700;color:var(--primary-deep);font-variant-numeric:tabular-nums;line-height:1.2;}
.badge .txt{font-size:12px;color:var(--text-muted);letter-spacing:.02em;}

/* ============ 页面头部 ============ */
.page-hero{
  background:var(--bg-alt);
  border-bottom:1px solid var(--border);
  padding:56px 0 48px;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;
  width:420px;height:420px;border-radius:50%;
  background:linear-gradient(135deg,rgba(14,143,126,.14),rgba(127,214,196,.06));
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-muted);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-sub);}
.breadcrumb a:hover{color:var(--primary-deep);}
.breadcrumb span.sep{color:var(--text-muted);}
.breadcrumb .current{color:var(--text-muted);}
.page-hero h1{font-size:42px;line-height:1.25;letter-spacing:.01em;max-width:820px;}
.page-hero .lead{margin-top:16px;max-width:640px;font-size:17px;color:var(--text-sub);}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* ============ 区块 ============ */
.section{padding:80px 0;}
.section--alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head .sub{margin-top:8px;font-size:15px;color:var(--text-sub);max-width:660px;}

/* ============ 对比表 ============ */
.table-wrap{
  overflow-x:auto;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
  -webkit-overflow-scrolling:touch;
}
table.diff-table{width:100%;min-width:900px;border-collapse:collapse;}
table.diff-table caption{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.diff-table thead th{
  background:#E6F1EE;color:var(--primary-deep);
  font-size:14px;font-weight:600;text-align:left;
  padding:16px 20px;white-space:nowrap;
  border-bottom:1px solid var(--border);
}
.diff-table tbody th,.diff-table tbody td{
  padding:18px 20px;font-size:15px;vertical-align:top;
  border-top:1px solid var(--divider);text-align:left;font-weight:400;
}
.diff-table tbody th{
  font-weight:600;color:var(--text);white-space:nowrap;
  position:sticky;left:0;z-index:2;background:#fff;
  box-shadow:1px 0 0 var(--border);
}
.diff-table tbody tr:nth-child(even),
.diff-table tbody tr:nth-child(even) th{background:#F8FBFA;}
.diff-table tbody td{color:var(--text-sub);}
.diff-table thead th:first-child{position:sticky;left:0;z-index:3;}
.diff-table tbody tr:hover td{background:#F1F8F6;}
.diff-table tbody tr:hover th{background:#F1F8F6;}
.table-note{
  margin-top:16px;display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--text-muted);line-height:1.7;
}
.table-note svg{width:16px;height:16px;color:var(--primary-soft);margin-top:4px;}

/* ============ 信息卡 ============ */
.info-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px;}
.info-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D5E8E3;}
.info-card .ico{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-sm);
  background:var(--bg-alt);color:var(--primary-deep);margin-bottom:16px;
}
.info-card .ico svg{width:22px;height:22px;}
.info-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.info-card p{font-size:15px;color:var(--text-sub);}

/* ============ 选择对照 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-panel{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.compare-panel:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.compare-panel figure{margin:0;aspect-ratio:16/9;overflow:hidden;}
.compare-panel figure img{width:100%;height:100%;object-fit:cover;object-position:center 40%;}
.compare-panel .body{padding:24px;}
.compare-panel h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.compare-panel .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.compare-panel ul{display:grid;gap:10px;}
.compare-panel li{
  position:relative;padding-left:22px;
  font-size:15px;color:var(--text-sub);
}
.compare-panel li::before{
  content:"";position:absolute;left:0;top:12px;
  width:8px;height:8px;border-radius:50%;background:var(--primary-soft);
}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.step .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:var(--grad);color:#fff;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-sub);line-height:1.75;}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D5E8E3;}
.faq-item.is-open{border-color:var(--primary-soft);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:22px 24px;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-deep);}
.faq-num{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;
  background:var(--bg-alt);color:var(--primary-deep);
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;
}
.faq-icon{width:18px;height:18px;margin-left:auto;color:var(--text-muted);transition:transform .2s ease,color .2s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{padding:0 24px 22px 64px;font-size:15px;line-height:1.8;color:var(--text-sub);}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:22px;line-height:1.4;margin-bottom:6px;}
.cta-band .desc{font-size:15px;color:var(--text-sub);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

.back-home{
  margin-top:32px;display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;
  font-size:14px;color:var(--text-muted);
}

/* ============ 页脚 ============ */
.site-footer{background:#16211F;color:#C9D3D0;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer-brand svg{width:28px;height:28px;}
.site-footer .about{font-size:14px;line-height:1.8;color:#9BA9A5;max-width:320px;}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#9BA9A5;}
.footer-links a:hover{color:#FFFFFF;text-decoration:none;}
.footer-note{font-size:14px;color:#9BA9A5;margin-bottom:14px;}
.subscribe{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe input{
  flex:1 1 160px;height:46px;padding:0 14px;
  background:#1F2C2A;border:1px solid #2C3A37;border-radius:var(--radius-btn);
  color:#fff;font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe input::placeholder{color:#7C8B87;}
.subscribe input:focus{border-color:var(--primary-soft);box-shadow:0 0 0 3px rgba(95,199,182,.18);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid #253230;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9793;
}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:#8A9793;}
.footer-bottom a:hover{color:#FFFFFF;text-decoration:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .page-hero h1{font-size:36px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-box{width:180px;}
  body.nav-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    margin:0;padding:8px 24px 32px;
    background:#fff;overflow-y:auto;z-index:55;
    animation:drawerIn .24s ease-out;
  }
  body.nav-open .nav-links a{
    padding:0;height:48px;display:flex;align-items:center;
    font-size:16px;border-bottom:1px solid var(--divider);
  }
  body.nav-open .nav-links a::after{display:none;}
  @keyframes drawerIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:none;}}
  .section{padding:64px 0;}
  .page-hero{padding:44px 0 40px;}
  .page-hero h1{font-size:34px;}
  .info-cards{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--header-h:60px;}
  .container{padding:0 18px;}
  .brand{font-size:16px;}
  .brand svg{width:26px;height:26px;}
  .search-box{display:none;}
  .nav-tools{gap:10px;}
  .page-hero{padding:36px 0 32px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lead{font-size:15px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .info-cards{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .info-card,.step{padding:20px 18px;}
  .faq-q{padding:18px;font-size:16px;gap:10px;}
  .faq-a p{padding:0 18px 18px 54px;}
  .cta-band{padding:24px 20px;flex-direction:column;align-items:stretch;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-meta{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;}
  .badge{flex:none;}
}
@media (max-width:479px){
  .page-hero h1{font-size:25px;}
  .badge{padding:10px 14px;}
  .badge .num{font-size:19px;}
}

/* roulang page: category4 */
:root{
  --primary:#0E8F7E;
  --primary-deep:#0A6B5E;
  --primary-soft:#5FC7B6;
  --gradient-brand:linear-gradient(135deg,#0E8F7E 0%,#37B3A0 50%,#7FD6C4 100%);
  --accent:#F0A73C;
  --accent-hot:#FF6F5E;
  --bg:#F5F7F5;
  --bg-alt:#EDF3F1;
  --surface:#FFFFFF;
  --text:#16211F;
  --text-sub:#51625E;
  --text-muted:#8A9793;
  --border:#E2E9E6;
  --divider:#EEF3F1;
  --success:#2FA36B;
  --warn:#E0A320;
  --danger:#D9534F;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-btn:12px;
  --shadow-card:0 8px 24px rgba(14,143,126,.08);
  --shadow-hover:0 14px 32px rgba(14,143,126,.16);
  --shadow-nav:0 2px 12px rgba(22,33,31,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text)}
h1{font-size:42px;line-height:1.25}
h2{font-size:28px;line-height:1.35}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;background:none;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,filter .2s ease-out;
  text-decoration:none;white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none}
.btn--primary{background:var(--gradient-brand);color:#fff;box-shadow:0 8px 20px rgba(14,143,126,.22)}
.btn--primary:hover{color:#fff;text-decoration:none;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,143,126,.28)}
.btn--primary:active{transform:scale(.98)}
.btn--primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn--outline{background:#fff;border-color:var(--primary);color:var(--primary-deep)}
.btn--outline:hover{background:var(--bg-alt);color:var(--primary-deep);text-decoration:none;transform:translateY(-1px)}
.btn--outline:active{transform:scale(.98)}
.btn--text{height:auto;padding:0;background:none;color:var(--primary-deep);font-weight:600}
.btn--text:hover{color:var(--primary);text-decoration:none}
.btn--text svg{transition:transform .2s ease-out}
.btn--text:hover svg{transform:translateX(3px)}
.btn--sm{height:40px;padding:0 16px;font-size:14px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.nav{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);text-decoration:none;flex:none}
.brand:hover{color:var(--primary-deep);text-decoration:none}
.brand svg{width:32px;height:32px;flex:none}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:12px}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  color:var(--text-sub);text-decoration:none;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:3px;border-radius:3px;
  background:var(--gradient-brand);transform:translateX(-50%);transition:width .2s ease-out;
}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--primary-deep);font-weight:600}
.nav-links a.is-active::after{width:20px}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  background:var(--bg);border:1px solid transparent;border-radius:var(--r-btn);
  transition:background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.search-box svg{width:18px;height:18px;color:var(--text-muted);flex:none}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--text-muted)}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,143,126,.18)}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;flex:none;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-btn);cursor:pointer;
}
.nav-toggle span{position:absolute;top:50%;left:50%;width:18px;height:2px;margin-top:-1px;margin-left:-9px;background:var(--text);border-radius:2px;transition:background-color .2s ease-out}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease-out,top .2s ease-out}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.is-open .nav-toggle span{background:transparent}
.site-header.is-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
.site-header.is-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ---------- 分类页头 ---------- */
.page-head{background:var(--bg-alt);border-bottom:1px solid var(--border);padding:56px 0 52px}
.page-head__inner{display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--primary-deep);background:#fff;border:1px solid var(--border);
  border-radius:999px;padding:4px 12px;
}
.page-head h1{margin:16px 0 12px;letter-spacing:-.01em}
.page-head__desc{margin:0;max-width:640px;color:var(--text-sub);font-size:16px}
.page-head__stats{display:flex;gap:14px;flex:none}
.stat{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:14px 18px;min-width:112px;box-shadow:var(--shadow-card);
}
.stat strong{display:block;font-size:26px;line-height:1.2;color:var(--primary-deep);font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--text-muted)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:16px 0 0;font-size:14px;color:var(--text-muted)}
.breadcrumb a{color:var(--text-sub)}
.breadcrumb .sep{margin:0 8px;color:var(--text-muted)}
.breadcrumb .current{color:var(--text-muted)}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section--alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:28px}
.section-head h2{margin-bottom:12px}
.section-head p{margin:0;color:var(--text-sub)}
.tag{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--bg-alt);color:var(--primary-deep);border-radius:999px;padding:4px 10px;
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;top:8px;bottom:8px;left:50%;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(14,143,126,.06),rgba(14,143,126,.34) 18%,rgba(14,143,126,.34) 82%,rgba(14,143,126,.06));
}
.tl-item{position:relative;width:50%;padding:0 48px 36px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 36px 48px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;top:30px;left:100%;width:14px;height:14px;margin-left:-7px;border-radius:50%;
  background:#fff;border:2px solid var(--primary-soft);z-index:2;
}
.tl-item:nth-child(even) .tl-dot{left:0;margin-left:-7px}
.tl-dot.is-current{background:var(--gradient-brand);border-color:transparent;box-shadow:0 0 0 5px rgba(14,143,126,.12)}
.tl-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.tl-card:hover h3{color:var(--primary-deep)}
.tl-card h3{transition:color .2s ease-out}
.tl-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;margin-bottom:14px;border-radius:var(--r-btn);
  background:var(--bg-alt);color:var(--primary-deep);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.tl-card h3{margin-bottom:10px}
.tl-card p{margin:0 0 14px;font-size:15px;color:var(--text-sub)}
.tl-points{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.tl-points li{
  font-size:12px;font-weight:600;color:var(--primary-deep);
  background:var(--bg-alt);border-radius:999px;padding:4px 10px;
}

/* ---------- 判断依据 ---------- */
.check-layout{display:grid;grid-template-columns:360px 1fr;gap:48px;align-items:start}
.check-intro h2{margin-bottom:14px}
.check-intro p{color:var(--text-sub);font-size:15px;margin-bottom:20px}
.check-list{display:grid;gap:16px}
.check-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-md);padding:20px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.check-mark{
  flex:none;width:36px;height:36px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-alt);color:var(--primary-deep);font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.check-item h3{margin-bottom:6px;font-size:18px}
.check-item p{margin:0;font-size:15px;color:var(--text-sub)}

/* ---------- 图文情形 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.scene-media{margin:0;aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.scene-media img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.scene-body h2{margin-bottom:14px}
.scene-body>p{color:var(--text-sub);font-size:15px}
.scene-list{list-style:none;display:grid;gap:14px;margin-top:22px}
.scene-list li{
  display:flex;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--divider);
}
.scene-list li:last-child{border-bottom:0;padding-bottom:0}
.scene-list .dot-mark{
  flex:none;width:10px;height:10px;margin-top:11px;border-radius:50%;
  background:var(--gradient-brand);
}
.scene-list strong{display:block;font-size:16px;font-weight:600;margin-bottom:2px}
.scene-list span{font-size:14px;color:var(--text-sub)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  box-shadow:var(--shadow-card);overflow:hidden;transition:box-shadow .2s ease-out;
}
.faq-item.is-open{box-shadow:var(--shadow-hover)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary-deep)}
.faq-idx{
  flex:none;width:24px;height:24px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-alt);color:var(--primary-deep);font-size:12px;font-weight:700;
}
.faq-q .faq-arrow{margin-left:auto;flex:none;width:18px;height:18px;color:var(--primary);transition:transform .2s ease-out}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease-out}
.faq-a p{
  margin:0 24px 20px 62px;font-size:15px;line-height:1.8;color:var(--text-sub);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:32px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--text-sub);font-size:15px}
.cta-band__actions{display:flex;gap:12px;flex:none}
.back-home{text-align:center;margin-top:32px}

/* ---------- 页脚 ---------- */
.site-footer{background:#16211F;color:#C9D4D1;padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand svg{width:30px;height:30px;flex:none}
.site-footer .about{font-size:14px;line-height:1.8;color:#9FB0AC;margin:0}
.site-footer h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#9FB0AC;font-size:14px;text-decoration:none}
.footer-links a:hover{color:#fff}
.footer-note{font-size:14px;color:#9FB0AC;margin:0 0 12px}
.subscribe{display:flex;gap:10px}
.subscribe input{
  flex:1;min-width:0;height:48px;padding:0 14px;border-radius:var(--r-btn);
  background:#1F2C29;border:1px solid #2C3B38;color:#fff;outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.subscribe input::placeholder{color:#7C8C88}
.subscribe input:focus{border-color:var(--primary-soft);box-shadow:0 0 0 3px rgba(95,199,182,.22)}
.subscribe .btn{height:48px}
.footer-bottom{
  margin-top:48px;border-top:1px solid #26332F;padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#8A9793;
}
.footer-bottom .legal{display:flex;gap:20px}
.footer-bottom a{color:#8A9793}
.footer-bottom a:hover{color:#fff}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  h1{font-size:36px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .search-box{display:none}
  .nav-links{
    position:fixed;top:72px;right:0;bottom:0;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:16px 20px 32px;
    background:#fff;border-left:1px solid var(--border);box-shadow:-10px 0 32px rgba(22,33,31,.08);
    transform:translateX(100%);transition:transform .24s ease-out;overflow-y:auto;z-index:70;
  }
  .site-header.is-open .nav-links{transform:translateX(0)}
  .nav-links a{display:flex;align-items:center;height:48px;font-size:16px;border-bottom:1px solid var(--divider)}
  .nav-links a::after{display:none}
  .page-head__inner{flex-direction:column;align-items:flex-start;gap:24px}
  .check-layout{grid-template-columns:1fr;gap:28px}
  .scene{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .container{padding:0 18px}
  .nav{height:60px;gap:12px}
  .brand span{font-size:16px}
  .nav-links{top:60px}
  .section{padding:48px 0}
  .page-head{padding:36px 0}
  .page-head__stats{width:100%}
  .stat{flex:1;min-width:0;padding:12px 14px}
  .timeline::before{left:7px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 24px 34px}
  .tl-item:last-child{padding-bottom:0}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:7px;margin-left:-7px;top:26px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 20px}
  .cta-band__actions{width:100%;flex-direction:column}
  .cta-band__actions .btn{width:100%}
  .faq-a p{margin:0 20px 18px 20px}
  .faq-q{padding:18px 20px;font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .subscribe{flex-direction:column}
  .subscribe .btn{width:100%}
}
@media (max-width:479px){
  .nav-tools .btn--sm{display:none}
  .tl-card{padding:20px}
}