/* roulang page: index */
:root{
  --ink-900:#0B1A16;
  --ink-800:#123028;
  --brand:#2ED39A;
  --brand-deep:#14A075;
  --accent:#FFB43D;
  --accent-2:#FF6B8A;
  --bg:#F5F7F3;
  --surface:#FFFFFF;
  --line:#E2E8E1;
  --text:#17231F;
  --text-mute:#5F7169;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow:0 1px 2px rgba(11,26,22,.06), 0 12px 32px -12px rgba(11,26,22,.18);
  --shadow-hover:0 2px 4px rgba(11,26,22,.08), 0 22px 42px -14px rgba(11,26,22,.24);
  --dur:.2s;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:rgba(46,211,154,.08)}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--dur) ease,background-color var(--dur) ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4{font-family:var(--font);color:var(--text);font-weight:700;line-height:1.25;margin:0;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:var(--font)}
:focus-visible{outline:3px solid rgba(46,211,154,.45);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.row{max-width:1200px;margin-left:auto;margin-right:auto}
.section{padding:96px 0}
.section-dark{background:var(--ink-900);color:#fff}
.section-tint{background:#EDF5EF}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{font-size:28px}
.sec-desc{color:var(--text-mute);font-size:15px;max-width:640px;margin-top:12px}
.section-dark .sec-desc{color:rgba(255,255,255,.68)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1px;color:var(--brand);font-weight:700}
.link-more{font-size:14px;font-weight:600;color:var(--brand-deep);border-bottom:1px solid transparent;padding-bottom:2px;min-height:44px;display:inline-flex;align-items:center}
.link-more:hover{border-bottom-color:var(--brand)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:linear-gradient(to bottom,rgba(245,247,243,.94),rgba(245,247,243,.72));backdrop-filter:blur(10px)}
.nav-shell{display:flex;align-items:center;gap:14px;background:var(--ink-900);border-radius:20px;padding:10px 14px;box-shadow:var(--shadow);position:relative}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:12px;flex-shrink:0}
.brand-mark{width:30px;height:30px;border-radius:9px;background:rgba(46,211,154,.14);border:1px solid rgba(46,211,154,.4);display:inline-flex;align-items:center;justify-content:center;color:var(--brand)}
.brand-mark svg{width:17px;height:17px}
.brand-text{color:#fff;font-size:15px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-item{position:relative;display:inline-flex;align-items:center;min-height:40px;padding:8px 12px;border-radius:var(--radius-sm);font-size:14px;color:rgba(255,255,255,.72);white-space:nowrap}
.nav-item:hover{background:rgba(46,211,154,.1);color:var(--brand)}
.nav-item.is-active{background:rgba(46,211,154,.14);color:var(--brand);font-weight:600}
.nav-item.is-active::before{content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);width:3px;height:18px;border-radius:2px;background:var(--brand)}
.nav-cta-mobile{display:none}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:rgba(255,255,255,.85);transition:transform var(--dur) ease,opacity var(--dur) ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform var(--dur) ease,background-color var(--dur) ease,color var(--dur) ease,box-shadow var(--dur) ease;line-height:1.2}
.btn-primary{background:var(--brand);color:var(--ink-900)}
.btn-primary:hover{background:var(--brand-deep);color:#04241B;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{background:#0F8A63;transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(46,211,154,.1);color:var(--brand);transform:translateY(-2px)}
.btn-quiet{background:transparent;color:rgba(255,255,255,.8);border-color:rgba(255,255,255,.28)}
.btn-quiet:hover{background:rgba(255,255,255,.08);color:#fff}
.btn-sm{min-height:44px;padding:10px 18px;font-size:14px;border-radius:12px}
.btn-outline-sm{min-height:44px;padding:10px 18px;font-size:14px;border-radius:12px;background:transparent;border:1px solid var(--line);color:var(--text);cursor:pointer;transition:all var(--dur) ease}
.btn-outline-sm:hover{border-color:var(--brand);color:var(--brand-deep);background:rgba(46,211,154,.06)}

/* Hero */
.hero{position:relative;background:var(--ink-900);padding:76px 0 132px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.5}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(102deg,rgba(11,26,22,.94) 0%,rgba(11,26,22,.78) 52%,rgba(18,48,40,.6) 100%)}
.hero-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:48px}
.hero-copy{flex:1 1 520px;min-width:0}
.hero h1{color:#fff;font-size:40px;margin:18px 0 0}
.hero-sub{color:rgba(255,255,255,.76);font-size:16px;margin-top:18px;max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{font-size:13px;color:rgba(255,255,255,.82);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:7px 14px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-visual{flex:1 1 380px;min-width:0}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-card);border:1px solid rgba(255,255,255,.14);box-shadow:0 18px 46px -18px rgba(0,0,0,.6);transform:rotate(-1.2deg)}
.hero-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6);text-align:center}

/* 入口卡条 */
.path-strip{margin-top:-64px;position:relative;z-index:5}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.path-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 20px;box-shadow:var(--shadow);transition:transform var(--dur) ease,box-shadow var(--dur) ease;display:block}
.path-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:inherit}
.path-icon{width:38px;height:38px;border-radius:11px;background:rgba(46,211,154,.12);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.path-icon svg{width:19px;height:19px}
.path-card h3{font-size:17px;margin-bottom:8px}
.path-card p{font-size:14px;color:var(--text-mute);line-height:1.6}

/* 介绍区 */
.feature-lead{display:flex;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow);overflow:hidden;margin-bottom:24px}
.feature-lead-media{flex:0 0 40%;min-width:0}
.feature-lead-media img{width:100%;height:100%;min-height:300px;object-fit:cover;border-radius:0}
.feature-lead-body{flex:1 1 auto;padding:32px 34px;min-width:0}
.feature-lead-body h3{font-size:20px;margin-bottom:12px}
.feature-lead-body>p{color:var(--text-mute);font-size:15px;margin-bottom:20px}
.feature-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text);margin-bottom:12px;line-height:1.7}
.feature-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.feature-mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mini-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow);transition:transform var(--dur) ease,box-shadow var(--dur) ease}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.mini-card h3{font-size:18px;margin-bottom:10px}
.mini-card p{font-size:15px;color:var(--text-mute)}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:4px 10px;border-radius:6px;line-height:1.6}
.badge-brand{background:rgba(46,211,154,.14);color:var(--brand-deep)}
.badge-accent{background:rgba(255,180,61,.16);color:#8A5A00}
.badge-neutral{background:#EFF2EE;color:var(--text-mute)}
.badge-dot{background:rgba(255,107,138,.16);color:#B33B58}

/* 权益预览条 */
.preview-band{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14);margin-top:8px}
.preview-item{padding:30px 24px;border-right:1px solid rgba(255,255,255,.14)}
.preview-item:last-child{border-right:0}
.preview-item .pi-label{font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.5px}
.preview-item .pi-value{font-size:24px;font-weight:800;color:#fff;margin-top:10px;font-variant-numeric:tabular-nums;line-height:1.3}
.preview-item .pi-desc{font-size:13px;color:rgba(255,255,255,.62);margin-top:8px}

/* 步骤时间线 */
.steps{display:flex;margin-top:44px}
.step{position:relative;flex:1 1 0;min-width:0;padding-right:34px}
.step::before{content:"";position:absolute;left:22px;right:8px;top:6px;height:2px;border-radius:2px;background:var(--line)}
.step.is-done::before{background:var(--brand)}
.step:last-child::before{display:none}
.step .dot{position:relative;z-index:2;display:block;width:14px;height:14px;border-radius:50%;background:var(--line);margin-bottom:18px}
.step.is-done .dot{background:var(--brand)}
.step.is-current .dot{background:var(--accent);box-shadow:0 0 0 6px rgba(255,180,61,.2)}
.step-name{font-size:17px;margin-bottom:8px}
.step-desc{font-size:14px;color:var(--text-mute);line-height:1.7}

/* 卡片列表 */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column;transition:transform var(--dur) ease,box-shadow var(--dur) ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card-media{display:block}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.card-title{font-size:18px;margin:12px 0 10px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--brand-deep)}
.card-sum{font-size:14px;color:var(--text-mute);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:16px;font-size:13px;color:var(--text-mute);display:flex;align-items:center;gap:10px}
.news-grid{margin-left:-12px;margin-right:-12px}
.news-grid .columns{margin-bottom:24px}

/* 空态 */
.empty-state{border:1.5px dashed var(--line);border-radius:var(--radius-card);background:#FBFCFA;padding:52px 24px;text-align:center}
.empty-state .es-icon{width:46px;height:46px;margin:0 auto 16px;border-radius:14px;background:rgba(46,211,154,.12);color:var(--brand-deep);display:flex;align-items:center;justify-content:center}
.empty-state p{color:var(--text-mute);font-size:15px;margin-bottom:22px}

/* 检查清单 */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:36px}
.checklist li{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;font-size:15px;box-shadow:0 1px 2px rgba(11,26,22,.04)}
.check-icon{flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:rgba(46,211,154,.16);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;margin-top:3px}
.check-icon svg{width:12px;height:12px}

/* FAQ */
.faq-wrap{margin-top:36px;border-top:1px solid var(--line)}
.accordion{border:0;background:transparent}
.accordion .accordion-item{border-bottom:1px solid var(--line);border-top:0;background:transparent}
.accordion .accordion-title{font-size:17px;font-weight:600;color:var(--text);padding:22px 48px 22px 18px;border:0;background:transparent;position:relative;min-height:44px;display:block;transition:background-color var(--dur) ease}
.accordion .accordion-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;border-radius:2px;background:var(--brand);transition:height var(--dur) ease}
.accordion .accordion-title::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;line-height:1;color:var(--brand-deep);font-weight:400}
.accordion .accordion-title:hover{background:rgba(46,211,154,.06)}
.accordion .accordion-item.is-active .accordion-title{background:rgba(46,211,154,.08);color:var(--brand-deep)}
.accordion .accordion-item.is-active .accordion-title::before{height:22px}
.accordion .accordion-item.is-active .accordion-title::after{content:"–"}
.accordion .accordion-content{padding:0 20px 24px 21px;border:0;background:rgba(46,211,154,.05);font-size:16px;line-height:1.8;color:var(--text)}
.accordion .accordion-content p{margin-bottom:12px}
.accordion .accordion-content p:last-child{margin-bottom:0}

/* CTA */
.cta-panel{display:flex;flex-wrap:wrap;gap:36px;align-items:center;justify-content:space-between}
.cta-copy{flex:1 1 460px;min-width:0}
.cta-copy h2{color:#fff;font-size:28px}
.cta-copy p{color:rgba(255,255,255,.7);margin-top:14px;font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.subscribe{flex:1 1 340px;min-width:0;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-card);padding:26px}
.subscribe label{display:block;font-size:14px;color:rgba(255,255,255,.8);margin-bottom:10px}
.subscribe input{width:100%;height:48px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:15px;font-family:var(--font);transition:border-color var(--dur) ease,box-shadow var(--dur) ease}
.subscribe input::placeholder{color:rgba(255,255,255,.42)}
.subscribe input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,211,154,.2)}
.subscribe .btn{width:100%;margin-top:14px}
.form-tip{font-size:13px;margin-top:12px;color:rgba(255,255,255,.55)}
.form-tip.is-error{color:#FF9DAE}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.6);padding:72px 0 0}
.footer-grid{row-gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-text{font-size:14px;line-height:2}
.footer-links li{margin-bottom:4px}
.footer-links a{color:rgba(255,255,255,.6);font-size:14px;line-height:2;display:inline-flex;min-height:34px;align-items:center}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px}

@media screen and (max-width:1200px){
  .hero h1{font-size:36px}
}
@media screen and (max-width:1023px){
  .section{padding:72px 0}
  .nav-toggle{display:flex}
  .nav-actions{display:none}
  .nav-links{display:none;position:absolute;left:12px;right:12px;top:calc(100% + 10px);background:var(--ink-900);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:14px;grid-template-columns:repeat(2,1fr);gap:8px;box-shadow:0 24px 48px -18px rgba(0,0,0,.7)}
  .nav-shell.is-open .nav-links{display:grid}
  .nav-item{width:100%;justify-content:flex-start;background:rgba(255,255,255,.05)}
  .nav-cta-mobile{display:inline-flex;grid-column:1 / -1;justify-content:center;background:var(--brand);color:var(--ink-900);font-weight:700;border-radius:12px;min-height:46px}
  .nav-cta-mobile:hover{background:var(--brand-deep);color:var(--ink-900)}
  .path-grid{grid-template-columns:repeat(2,1fr)}
  .preview-band{grid-template-columns:repeat(2,1fr)}
  .preview-item:nth-child(2){border-right:0}
  .preview-item{border-bottom:1px solid rgba(255,255,255,.14)}
  .steps{flex-wrap:wrap}
  .step{flex:1 1 45%;padding-right:24px;margin-bottom:32px}
  .step:nth-child(2)::before{display:none}
  .hero{padding:60px 0 108px}
  .hero h1{font-size:30px}
  .feature-lead{flex-direction:column}
  .feature-lead-media img{min-height:220px}
}
@media screen and (max-width:767px){
  .checklist{grid-template-columns:1fr}
  .feature-mini-grid{grid-template-columns:1fr}
  .news-grid{margin-left:-8px;margin-right:-8px}
}
@media screen and (max-width:639px){
  .section{padding:48px 0}
  .container{padding:0 18px}
  .path-grid{grid-template-columns:1fr}
  .preview-band{grid-template-columns:1fr}
  .preview-item{border-right:0}
  .steps{display:block}
  .step{display:block;padding:0 0 26px 32px;margin-bottom:0;flex:none}
  .step::before{left:6px;top:20px;bottom:0;right:auto;width:2px;height:auto}
  .step:last-child{padding-bottom:0}
  .step .dot{position:absolute;left:0;top:4px;margin-bottom:0}
  .step-name{margin-bottom:6px}
  .sec-title{font-size:23px}
  .hero h1{font-size:27px}
  .cta-copy h2{font-size:23px}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .link-more{width:auto}
}

/* roulang page: article */
:root{
  --ink-900:#0B1A16;
  --ink-800:#123028;
  --brand:#2ED39A;
  --brand-deep:#14A075;
  --accent:#FFB43D;
  --accent-2:#FF6B8A;
  --bg:#F5F7F3;
  --surface:#FFFFFF;
  --line:#E2E8E1;
  --text:#17231F;
  --text-mute:#5F7169;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(11,26,22,.06), 0 12px 32px -12px rgba(11,26,22,.18);
  --shadow-2:0 2px 4px rgba(11,26,22,.08), 0 18px 42px -14px rgba(11,26,22,.26);
  --section-y:96px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --t:.2s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--text);}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(46,211,154,.45);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.row{max-width:100%;}
.section{padding:var(--section-y) 0;}
.section-tight{padding:64px 0;}
.section-dark{background:var(--ink-900);color:#fff;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:28px;letter-spacing:-.2px;}
.section-sub{color:var(--text-mute);font-size:15px;margin-top:8px;max-width:640px;line-height:1.8;}
.section-dark .section-sub{color:rgba(255,255,255,.68);}
.text-link{font-size:15px;font-weight:600;color:var(--brand-deep);border-bottom:1px solid transparent;padding-bottom:2px;min-height:44px;display:inline-flex;align-items:center;}
.text-link:hover{border-bottom-color:var(--brand);color:var(--brand-deep);}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:rgba(245,247,243,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:var(--ink-900);
  border:1px solid rgba(255,255,255,.06);
  border-radius:20px;
  padding:10px 14px;
  box-shadow:var(--shadow-1);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(46,211,154,.16);color:var(--brand);
  flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:8px;flex:1;justify-content:flex-start;}
.nav-item{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:var(--radius-sm);min-height:44px;
  font-size:15px;color:rgba(255,255,255,.72);
  transition:background var(--t),color var(--t);
  white-space:nowrap;
}
.nav-item:hover{background:rgba(46,211,154,.08);color:#fff;}
.nav-item.is-active{background:rgba(46,211,154,.14);color:var(--brand);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--brand);
}
.nav-cta-mobile{display:none;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform var(--t),opacity var(--t);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--pill);
  font-size:15px;font-weight:700;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px;border-radius:var(--radius-md);}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:0 8px 22px -10px rgba(46,211,154,.85);}
.btn-primary:hover{background:#25c08b;color:var(--ink-900);transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(46,211,154,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand-deep);border-radius:var(--radius-md);}
.btn-outline:hover{background:rgba(46,211,154,.08);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text-mute);border-radius:var(--radius-md);}
.btn-ghost:hover{color:var(--brand-deep);}
.section-dark .btn-outline{border-color:rgba(46,211,154,.7);color:var(--brand);}
.section-dark .btn-outline:hover{background:rgba(46,211,154,.12);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;line-height:1.6;
}
.badge-brand{background:rgba(46,211,154,.12);color:var(--brand-deep);}
.badge-neutral{background:#EEF1EC;color:var(--text-mute);}
.badge-accent{background:rgba(255,180,61,.15);color:#8A5A00;}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--surface);}
.breadcrumb{display:flex;align-items:center;gap:10px;padding:16px 0;font-size:14px;color:var(--text-mute);flex-wrap:wrap;}
.breadcrumb a{color:var(--text-mute);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{color:#C6D1CB;}
.crumb-current{
  color:var(--text);max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---------- article ---------- */
.article-wrap{padding:56px 0 40px;}
.reader{max-width:760px;margin:0 auto;}
.article-head{margin-bottom:24px;}
.article-head .badge{margin-bottom:16px;}
.article-head h1{font-size:40px;letter-spacing:-.6px;margin-bottom:18px;}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--text-mute);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D1CB;}
.article-divider{height:1px;background:var(--line);margin:28px 0;border:0;}
.article-cover{border-radius:var(--radius-md);overflow:hidden;margin-bottom:32px;box-shadow:var(--shadow-1);background:rgba(46,211,154,.08);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-md);}
.article-body{font-size:16px;line-height:1.8;max-width:760px;}
.article-body p{margin-bottom:16px;color:var(--text);}
.article-body h2{
  position:relative;font-size:28px;padding-left:16px;margin:40px 0 16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--brand-deep);
}
.article-body h3{font-size:20px;margin:28px 0 12px;color:var(--ink-800);}
.article-body h4{font-size:17px;margin:20px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:0;list-style:none;}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:olc;}
.article-body ol>li{padding-left:28px;counter-increment:olc;}
.article-body ol>li::before{
  content:counter(olc);position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:50%;background:rgba(46,211,154,.14);color:var(--brand-deep);
  font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  background:rgba(46,211,154,.07);border-left:3px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:16px 20px;margin:0 0 20px;color:var(--ink-800);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-md);margin:8px auto 6px;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-mute);margin-top:8px;}
.article-body a{border-bottom:1px solid rgba(20,160,117,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;background:var(--surface);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:20px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:#EEF3EF;font-weight:700;}

.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:36px 0 0;}
.tag-row .label{font-size:14px;color:var(--text-mute);}
.tag{
  display:inline-flex;align-items:center;min-height:32px;padding:0 12px;
  border-radius:var(--radius-sm);background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--text-mute);transition:border-color var(--t),color var(--t);
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);}

.back-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:28px;padding:20px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow-1);
}
.back-bar .back-text{font-size:14px;color:var(--text-mute);margin-right:auto;}

.empty-state{
  border:1.5px dashed #B9C6BF;border-radius:var(--radius-lg);
  background:var(--surface);padding:48px 28px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,211,154,.12);color:var(--brand-deep);font-size:22px;
}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--text-mute);font-size:15px;margin-bottom:20px;}

/* ---------- post cards ---------- */
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D2DCD5;}
.post-thumb{display:block;background:rgba(46,211,154,.08);}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-md) var(--radius-md) 0 0;}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-title{font-size:18px;line-height:1.45;}
.post-title a{color:var(--text);}
.post-title a:hover{color:var(--brand-deep);}
.post-desc{font-size:14px;line-height:1.6;color:var(--text-mute);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-mute);margin-top:auto;}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D1CB;}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}

/* ---------- cta ---------- */
.cta-panel{
  background:var(--ink-900);
  border-radius:20px;padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.06);
}
.cta-panel h2{font-size:28px;color:#fff;margin-bottom:12px;}
.cta-panel p{color:rgba(255,255,255,.68);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.6);padding:72px 0 28px;margin-top:0;}
.footer-grid{gap:32px 0;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;}
.footer-text{font-size:14px;line-height:2;margin-top:14px;max-width:300px;}
.footer-title{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700;letter-spacing:.2px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:2px;}
.footer-links a{color:rgba(255,255,255,.6);font-size:14px;line-height:2;display:inline-flex;align-items:center;min-height:32px;}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--section-y:72px;}
  .article-head h1{font-size:32px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .nav-toggle{display:flex;}
  .nav-actions{display:none;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:var(--ink-900);border:1px solid rgba(255,255,255,.08);
    border-radius:18px;padding:12px;gap:8px;
    grid-template-columns:repeat(2,minmax(0,1fr));
    box-shadow:var(--shadow-2);
  }
  .nav-links.is-open{display:grid;}
  .nav-item{justify-content:flex-start;background:rgba(255,255,255,.04);border-radius:var(--radius-sm);width:100%;}
  .nav-item.is-active{background:rgba(46,211,154,.16);}
  .nav-item.is-active::before{display:none;}
  .nav-cta-mobile{grid-column:1 / -1;display:inline-flex;background:var(--brand);color:var(--ink-900);font-weight:700;justify-content:center;}
  .nav-cta-mobile:hover{background:#25c08b;color:var(--ink-900);}
  .cta-panel{padding:40px 28px;}
}
@media (max-width:639px){
  :root{--section-y:48px;}
  body{font-size:15px;}
  .article-wrap{padding:36px 0 28px;}
  .article-head h1{font-size:30px;}
  .article-body h2{font-size:23px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .post-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{margin-bottom:24px;}
  .section-head h2{font-size:23px;}
  .crumb-current{max-width:220px;}
  .cta-panel h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-bar .back-text{width:100%;margin-bottom:4px;}
  .back-bar .btn{width:100%;}
  .footer-text{max-width:none;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B1A16;
  --ink-800:#123028;
  --brand:#2ED39A;
  --brand-deep:#14A075;
  --accent:#FFB43D;
  --accent-2:#FF6B8A;
  --bg:#F5F7F3;
  --surface:#FFFFFF;
  --line:#E2E8E1;
  --text:#17231F;
  --text-mute:#5F7169;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,26,22,.06),0 12px 32px -12px rgba(11,26,22,.18);
  --shadow-2:0 2px 4px rgba(11,26,22,.08),0 18px 40px -14px rgba(11,26,22,.24);
  --t:.22s ease;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:var(--font);}
input,select,textarea{font-family:var(--font);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  padding:12px 0;
  background:rgba(245,247,243,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(226,232,225,.9);
}
.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  background:var(--ink-900);
  border-radius:20px;
  padding:10px 14px 10px 16px;
  box-shadow:var(--shadow-1);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  flex:0 0 auto;
}
.brand:hover{color:#fff;}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:var(--radius-sm);
  background:rgba(46,211,154,.16);
  color:var(--brand);
  flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:8px 13px;
  border-radius:var(--radius-sm);
  font-size:14px;
  color:rgba(255,255,255,.74);
  white-space:nowrap;
}
.nav-item:hover{
  background:rgba(46,211,154,.08);
  color:#fff;
}
.nav-item.is-active{
  background:rgba(46,211,154,.14);
  color:var(--brand);
  font-weight:600;
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:4px;
  top:50%;
  transform:translateY(-50%);
  width:3px;height:16px;
  border-radius:2px;
  background:var(--brand);
}
.nav-cta-mobile{display:none;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:8px;
}
.nav-toggle{
  display:none;
  position:relative;
  width:44px;height:44px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  cursor:pointer;
  margin-left:auto;
}
.nav-toggle span{
  position:absolute;
  left:13px;right:13px;
  height:2px;
  border-radius:2px;
  background:#fff;
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:var(--brand);
  color:var(--ink-900);
  box-shadow:0 10px 24px -12px rgba(46,211,154,.8);
}
.btn-primary:hover{
  background:#29c48e;
  color:var(--ink-900);
  box-shadow:0 16px 30px -12px rgba(46,211,154,.85);
}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-ghost:hover{
  background:rgba(46,211,154,.1);
  color:var(--brand);
}
.btn-ghost-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.4);
}
.btn-ghost-light:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  border-color:rgba(255,255,255,.7);
}
.btn-sm{
  min-height:40px;
  padding:9px 18px;
  font-size:14px;
}
.link-plain{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-deep);
  border-bottom:1px solid transparent;
}
.link-plain:hover{border-bottom-color:var(--brand);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  margin-top:28px;
  border-radius:24px;
  overflow:hidden;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  padding:36px;
  background-image:linear-gradient(115deg,rgba(11,26,22,.82) 0%,rgba(11,26,22,.62) 55%,rgba(11,26,22,.5) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-1);
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.7);
  margin-bottom:14px;
}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:rgba(255,255,255,.4);}
.hero-inner{position:relative;z-index:2;max-width:720px;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:6px;
  background:rgba(46,211,154,.18);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.cat-hero h1{
  color:#fff;
  font-size:40px;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.hero-sub{
  color:rgba(255,255,255,.86);
  font-size:17px;
  line-height:1.8;
  max-width:620px;
  margin-bottom:22px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 快速核对条 ---------- */
.quick-strip{
  position:relative;
  z-index:5;
  margin-top:-40px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-2);
  padding:24px;
}
.quick-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.quick-item{
  padding:6px 22px;
  border-left:1px solid var(--line);
}
.quick-item:first-child{border-left:none;padding-left:0;}
.quick-icon{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:var(--radius-sm);
  background:rgba(46,211,154,.12);
  color:var(--brand-deep);
  margin-bottom:12px;
}
.quick-icon svg{width:19px;height:19px;}
.quick-item h3{font-size:17px;margin-bottom:6px;}
.quick-item p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-mute);
  margin:0;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-dark{
  background:var(--ink-900);
  color:#fff;
}
.section-dark h2,.section-dark h3{color:#fff;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{font-size:28px;}
.section-head p{
  color:var(--text-mute);
  font-size:15px;
  margin:10px 0 0;
  max-width:660px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--brand-deep);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:14px;height:3px;
  border-radius:2px;
  background:var(--brand);
}

/* ---------- 主内容：粘性目录 + 分步详解 ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.toc-card{
  position:sticky;
  top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:22px;
}
.toc-card h2{
  font-size:16px;
  margin-bottom:14px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:6px 10px;
  border-radius:var(--radius-sm);
  font-size:14px;
  color:var(--text-mute);
}
.toc-list a:hover{
  background:rgba(46,211,154,.08);
  color:var(--brand-deep);
}
.toc-list a .num{
  width:22px;height:22px;
  display:grid;place-items:center;
  border-radius:6px;
  background:rgba(46,211,154,.14);
  color:var(--brand-deep);
  font-size:12px;
  font-weight:700;
  flex:0 0 auto;
}
.toc-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.7;
  color:var(--text-mute);
}

.step-list{display:flex;flex-direction:column;gap:32px;}
.step-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px;
  transition:transform var(--t),box-shadow var(--t);
  scroll-margin-top:110px;
}
.step-block:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.step-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-img);
}
.step-block:nth-child(even) .step-media{order:2;}
.step-num{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:4px 11px;
  border-radius:6px;
  background:rgba(46,211,154,.14);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:700;
  margin-bottom:14px;
}
.step-body h3{font-size:20px;margin-bottom:12px;}
.step-body p{
  color:var(--text-mute);
  font-size:15px;
  line-height:1.8;
}
.step-points{margin-top:14px;}
.step-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--text-mute);
  line-height:1.9;
}
.step-points li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}

/* ---------- 环境核对 ---------- */
.check-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:28px;
}
.check-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list li:first-child{padding-top:0;}
.check-mark{
  width:26px;height:26px;
  flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:50%;
  background:rgba(46,211,154,.14);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:800;
  margin-top:3px;
}
.check-list h4{font-size:16px;margin-bottom:4px;}
.check-list p{
  font-size:14px;
  color:var(--text-mute);
  line-height:1.8;
  margin:0;
}
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  margin-top:36px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--surface);
}
.metric{
  padding:22px;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:none;}
.metric .label{
  font-size:13px;
  color:var(--text-mute);
  margin-bottom:8px;
}
.metric .value{
  font-size:22px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--ink-900);
  letter-spacing:.01em;
}
.metric .value em{
  font-style:normal;
  font-size:14px;
  font-weight:600;
  color:var(--brand-deep);
  margin-left:4px;
}

/* ---------- 卡片网格 ---------- */
.card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:700;
  background:rgba(46,211,154,.12);
  color:var(--brand-deep);
  align-self:flex-start;
}
.badge-accent{
  background:rgba(255,180,61,.18);
  color:#8A5A00;
}
.badge-neutral{
  background:#EEF1ED;
  color:var(--text-mute);
}
.card-body h3{font-size:18px;}
.card-body p{
  font-size:14px;
  line-height:1.65;
  color:var(--text-mute);
  margin:0;
}
.card-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-mute);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{
  background:transparent;
  border:none;
  margin:0;
}
.accordion .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.accordion .accordion-item:hover{border-color:rgba(46,211,154,.5);}
.accordion .accordion-item.is-active{
  box-shadow:inset 3px 0 0 var(--brand);
  border-color:rgba(46,211,154,.55);
}
.accordion .accordion-title{
  position:relative;
  display:block;
  padding:18px 54px 18px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  border:none;
  background:transparent;
  line-height:1.5;
}
.accordion .accordion-title:hover{
  background:rgba(46,211,154,.06);
  color:var(--text);
}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1;
}
.accordion .accordion-item.is-active .accordion-title{
  background:rgba(46,211,154,.08);
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.accordion .accordion-content{
  padding:0 20px 20px 20px;
  border:none;
  background:transparent;
  color:var(--text-mute);
  font-size:15px;
  line-height:1.8;
}
.accordion .accordion-content p{margin-bottom:12px;}
.accordion .accordion-content .btn{margin-top:6px;}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--ink-900);
  border-radius:24px;
  padding:56px 40px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-panel::after{
  content:"";
  position:absolute;
  width:320px;height:320px;
  right:-120px;top:-140px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,154,.28),transparent 68%);
}
.cta-panel h2{
  font-size:28px;
  color:#fff;
  margin-bottom:14px;
}
.cta-panel p{
  color:rgba(255,255,255,.76);
  max-width:620px;
  margin:0 auto 26px;
  font-size:16px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:12px;
  position:relative;
  z-index:2;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:96px;
}
.footer-grid{gargin-bottom:0;}
.footer-grid > .columns{margin-bottom:32px;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-text{
  font-size:14px;
  line-height:2;
  color:rgba(255,255,255,.6);
  margin:0;
}
.footer-title{
  font-size:15px;
  color:#fff;
  margin-bottom:14px;
}
.footer-links li{margin-bottom:2px;}
.footer-links a{
  display:inline-block;
  padding:4px 0;
  font-size:14px;
  line-height:2;
  color:rgba(255,255,255,.6);
}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .site-header{padding:10px 0;}
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-wrap:wrap;
    gap:8px;
    padding:12px;
    background:var(--ink-800);
    border-radius:16px;
    box-shadow:var(--shadow-2);
    margin-left:0;
    max-height:70vh;
    overflow-y:auto;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{
    flex:1 1 calc(50% - 8px);
    background:rgba(255,255,255,.05);
    justify-content:center;
  }
  .nav-cta-mobile{
    display:inline-flex;
    flex:1 1 100%;
    background:var(--brand);
    color:var(--ink-900);
    font-weight:700;
    justify-content:center;
  }
  .nav-cta-mobile:hover{background:#29c48e;color:var(--ink-900);}
  .nav-actions{display:none;}
  .cat-hero{min-height:280px;padding:28px;}
  .cat-hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .quick-grid{grid-template-columns:repeat(2,1fr);}
  .quick-item{padding:14px 18px;border-left:none;border-top:1px solid var(--line);}
  .quick-item:nth-child(1),.quick-item:nth-child(2){border-top:none;}
  .quick-item:nth-child(odd){padding-left:0;}
  .cat-layout{grid-template-columns:1fr;gap:28px;}
  .toc-card{position:static;}
  .section{padding:72px 0;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(3){border-left:none;border-top:1px solid var(--line);}
  .metric:nth-child(4){border-top:1px solid var(--line);}
  .cta-panel{padding:44px 26px;}
}
@media (max-width:639px){
  body{font-size:15px;}
  .cat-hero{margin-top:20px;min-height:260px;padding:22px;border-radius:18px;}
  .cat-hero h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .quick-strip{padding:18px;margin-top:-28px;}
  .quick-grid{grid-template-columns:1fr;}
  .quick-item{padding-left:0;padding-right:0;}
  .quick-item:nth-child(2){border-top:1px solid var(--line);}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:23px;}
  .step-block{grid-template-columns:1fr;padding:18px;gap:18px;}
  .step-block:nth-child(even) .step-media{order:0;}
  .step-body h3{font-size:18px;}
  .check-panel{padding:20px;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:none;border-top:1px solid var(--line);}
  .metric:first-child{border-top:none;}
  .cta-panel{padding:34px 20px;border-radius:18px;}
  .cta-panel h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .site-footer{margin-top:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B1A16;
  --ink-800:#123028;
  --brand:#2ED39A;
  --brand-deep:#14A075;
  --accent:#FFB43D;
  --accent-2:#FF6B8A;
  --bg:#F5F7F3;
  --surface:#FFFFFF;
  --line:#E2E8E1;
  --text:#17231F;
  --text-mute:#5F7169;
  --brand-8:rgba(46,211,154,.08);
  --brand-12:rgba(46,211,154,.12);
  --brand-20:rgba(46,211,154,.20);
  --accent-15:rgba(255,180,61,.15);
  --accent-text:#8A5A00;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,26,22,.06);
  --shadow-2:0 1px 2px rgba(11,26,22,.06),0 12px 32px -12px rgba(11,26,22,.18);
  --shadow-3:0 2px 4px rgba(11,26,22,.08),0 18px 40px -14px rgba(11,26,22,.24);
  --ease:200ms cubic-bezier(.22,.61,.36,1);
  --gap:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:inherit;color:var(--text);font-weight:700;line-height:1.25;margin:0 0 16px;letter-spacing:0}
h1{font-size:40px}
h2{font-size:28px}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 16px;font-size:16px;line-height:1.8;color:var(--text)}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-head{max-width:760px;margin:0 0 40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand-deep);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--brand)}
.section-lead{font-size:17px;color:var(--text-mute);line-height:1.8;margin:0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.link-more{font-size:15px;font-weight:600;color:var(--brand-deep);border-bottom:1px solid transparent}
.link-more:hover{border-bottom-color:var(--brand);color:var(--brand-deep)}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:linear-gradient(180deg,rgba(245,247,243,.96),rgba(245,247,243,.72));backdrop-filter:blur(8px)}
.nav-shell{
  display:flex;align-items:center;gap:16px;
  background:var(--ink-900);
  border:1px solid rgba(255,255,255,.08);
  border-radius:20px;
  padding:10px 12px;
  box-shadow:var(--shadow-2);
}
.brand{display:flex;align-items:center;gap:10px;padding:6px 10px;border-radius:var(--radius-sm);color:#fff;flex:0 0 auto}
.brand:hover{color:#fff;background:rgba(255,255,255,.06)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:var(--brand);color:var(--ink-900);flex:0 0 auto}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0}
.nav-item{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;color:rgba(255,255,255,.72);
  white-space:nowrap;transition:background-color var(--ease),color var(--ease);
}
.nav-item:hover{background:var(--brand-8);color:#fff}
.nav-item.is-active{background:var(--brand-12);color:#fff}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  cursor:pointer;padding:0;flex:0 0 auto;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;background:#fff;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border:1px solid transparent;
  border-radius:var(--radius-pill);font-size:15px;font-weight:700;
  cursor:pointer;transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
}
.btn:focus-visible{outline:3px solid var(--brand-20);outline-offset:2px}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-3)}
.btn-primary:active{background:var(--brand-deep);transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand-deep);border-radius:12px}
.btn-ghost:hover{background:var(--brand-8);color:var(--brand-deep);transform:translateY(-2px)}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;border-radius:12px}
.btn-on-dark:hover{background:var(--brand-8);border-color:var(--brand);color:#fff}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:6px;font-size:12px;font-weight:700;line-height:1.7}
.badge-brand{background:var(--brand-12);color:var(--brand-deep)}
.badge-neutral{background:#EDF1EC;color:var(--text-mute)}
.badge-accent{background:var(--accent-15);color:var(--accent-text)}
.badge-dark{background:rgba(46,211,154,.16);color:var(--brand)}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-radius:0 0 24px 24px;background-color:var(--ink-900)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.62;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,26,22,.92) 0%,rgba(11,26,22,.66) 55%,rgba(11,26,22,.42) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{padding:64px 0 56px;max-width:760px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(255,255,255,.35)}
.page-hero h1{color:#fff;font-size:40px;margin-bottom:16px}
.page-hero .hero-lead{color:rgba(255,255,255,.84);font-size:17px;margin-bottom:24px;max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.hero-tags .badge{background:rgba(255,255,255,.10);color:rgba(255,255,255,.86)}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px}
.tl-item{display:grid;grid-template-columns:44px 1fr;gap:20px;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-rail{position:relative;display:flex;justify-content:center}
.tl-rail::before{content:"";position:absolute;top:16px;bottom:-32px;width:1.5px;background:var(--brand);opacity:.5}
.tl-item:last-child .tl-rail::before{display:none}
.tl-dot{position:relative;z-index:2;width:14px;height:14px;border-radius:50%;background:var(--brand);margin-top:9px}
.tl-item.is-current .tl-dot{background:var(--accent);box-shadow:0 0 0 6px rgba(255,180,61,.20)}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-2);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:#D3DED4}
.tl-card h3{margin-bottom:10px;font-size:20px}
.tl-card p{color:var(--text-mute);font-size:16px}
.point-list{margin-top:16px;display:grid;gap:10px}
.point-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text);line-height:1.7}
.point-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}

/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-2);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);height:100%}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:#D3DED4}
.card-body{padding:28px}
.card-media{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.card-title{font-size:20px;margin:12px 0 10px}
.card-text{font-size:15px;color:var(--text-mute);line-height:1.7}
.card-list{display:grid;gap:12px;margin-top:14px}
.card-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text)}
.card-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-deep)}
.feature-wide{display:grid;grid-template-columns:1fr;gap:0}
.feature-wide .wide-media{position:relative}
.feature-wide .wide-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ---------- dark stat panel ---------- */
.dark-section{background:var(--ink-800);color:#fff}
.dark-section h2,.dark-section h3,.dark-section h4{color:#fff}
.dark-section .section-lead{color:rgba(255,255,255,.72)}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-card);overflow:hidden;background:rgba(255,255,255,.03)}
.stat-cell{padding:28px;border-right:1px solid rgba(255,255,255,.14)}
.stat-cell:last-child{border-right:none}
.stat-num{font-size:32px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand);line-height:1.2;margin-bottom:6px}
.stat-label{font-size:15px;font-weight:600;color:#fff;margin-bottom:6px}
.stat-note{font-size:13px;color:rgba(255,255,255,.62);line-height:1.7}
.dark-panel-list{display:grid;gap:14px;margin-top:32px}
.dark-row{display:flex;gap:16px;align-items:flex-start;padding:18px 20px;border-radius:var(--radius-sm);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.dark-row .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);margin-top:8px;flex:0 0 auto}
.dark-row strong{display:block;font-size:16px;color:#fff;margin-bottom:4px}
.dark-row span{font-size:15px;color:rgba(255,255,255,.72);line-height:1.7}

/* ---------- rhythm rows ---------- */
.rhythm-list{display:grid;gap:16px}
.rhythm-item{
  display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 28px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rhythm-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D3DED4}
.rhythm-item h3{font-size:18px;margin:0}
.rhythm-item p{font-size:15px;color:var(--text-mute);margin:0}
.rhythm-tag{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--brand-deep)}
.rhythm-tag::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item.is-open{border-color:#CBDFD4;box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:18px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--brand-deep)}
.faq-q:focus-visible{outline:3px solid var(--brand-20);outline-offset:-3px}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-deep);border-radius:2px;transition:transform var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--ease)}
.faq-a-inner{padding:0 24px 22px 24px;border-left:3px solid var(--brand);background:rgba(46,211,154,.06);margin:0 24px 0 24px;border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.faq-a-inner p{font-size:16px;color:var(--text);margin:16px 0 0}
.faq-a-inner p:first-child{margin-top:18px}
.faq-a-inner .btn{margin-top:16px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;background:var(--ink-900);border-radius:24px;
  padding:64px 48px;text-align:center;box-shadow:var(--shadow-2);
}
.cta-panel::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(46,211,154,.28),transparent 65%)}
.cta-panel::after{content:"";position:absolute;left:-60px;bottom:-90px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,138,.18),transparent 65%)}
.cta-inner{position:relative;z-index:2;max-width:680px;margin:0 auto}
.cta-panel h2{color:#fff}
.cta-panel p{color:rgba(255,255,255,.76)}
.cta-panel .btn-row{justify-content:center;margin-top:28px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0}
.site-footer .footer-grid{margin-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-size:17px;font-weight:700}
.footer-title{font-size:15px;color:#fff;margin:0 0 14px;font-weight:700}
.footer-text{font-size:14px;line-height:2;color:rgba(255,255,255,.6);margin:0}
.footer-links{display:grid;gap:2px}
.footer-links a{font-size:14px;line-height:2;color:rgba(255,255,255,.6)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  h1{font-size:32px}
  h2{font-size:24px}
  .page-hero h1{font-size:32px}
  .section{padding:72px 0}
  .section-sm{padding:56px 0}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:none}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid rgba(255,255,255,.14)}
  .cta-panel{padding:48px 28px}
  .rhythm-item{grid-template-columns:140px 1fr;gap:18px}
  .rhythm-item .rhythm-tag{grid-column:1 / -1}
}
@media screen and (max-width:767px){
  .site-header{padding:10px 0}
  .nav-toggle{display:block;margin-left:auto}
  .nav-actions{display:none}
  .nav-links{
    position:absolute;left:20px;right:20px;top:calc(100% + 8px);
    display:none;flex-direction:column;align-items:stretch;gap:8px;
    background:var(--ink-900);border:1px solid rgba(255,255,255,.1);border-radius:18px;
    padding:14px;box-shadow:var(--shadow-3);
  }
  .nav-links.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px;animation:navIn 200ms ease both}
  .nav-item{justify-content:flex-start;padding:0 12px;background:rgba(255,255,255,.05)}
  .nav-item.is-active::before{height:60%}
  .nav-cta-mobile{display:inline-flex;grid-column:1 / -1;background:var(--brand);color:var(--ink-900);font-weight:700;justify-content:center}
  .nav-cta-mobile:hover{background:var(--brand-deep);color:#fff}
  .nav-shell{position:relative}
  .hero-inner{padding:44px 0 40px}
  .page-hero h1{font-size:28px}
  .section{padding:56px 0}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,.14)}
  .stat-cell:last-child{border-bottom:none}
  .tl-item{grid-template-columns:28px 1fr;gap:14px}
  .tl-card{padding:20px}
  .rhythm-item{grid-template-columns:1fr;gap:10px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a-inner{margin:0 18px;padding:0 0 20px 14px}
  .cta-panel{padding:40px 20px;border-radius:18px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media screen and (max-width:480px){
  .container{padding:0 16px}
  .page-hero h1{font-size:25px}
  h1{font-size:26px}
  h2{font-size:22px}
  .nav-links.is-open{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-row .btn{width:100%}
  .hero-buttons .btn{width:auto}
}
@keyframes navIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* roulang page: category3 */
:root{
  --ink-900:#0B1A16;
  --ink-800:#123028;
  --brand:#2ED39A;
  --brand-deep:#14A075;
  --accent:#FFB43D;
  --accent-2:#FF6B8A;
  --bg:#F5F7F3;
  --surface:#FFFFFF;
  --line:#E2E8E1;
  --text:#17231F;
  --text-mute:#5F7169;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(11,26,22,.06);
  --shadow-2:0 1px 2px rgba(11,26,22,.06),0 12px 32px -12px rgba(11,26,22,.18);
  --shadow-hover:0 2px 4px rgba(11,26,22,.08),0 20px 42px -14px rgba(11,26,22,.26);
  --space-section:96px;
  --t-fast:160ms;
  --t-base:220ms;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t-fast) ease,background var(--t-fast) ease,border-color var(--t-fast) ease;}
a:hover,a:focus{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(46,211,154,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.row{max-width:none;margin-left:-12px;margin-right:-12px;}
.row .columns{padding-left:12px;padding-right:12px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.section-dark{background:var(--ink-900);color:#fff;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-soft{background:#EEF4EE;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--brand-deep);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand);}
.section-dark .eyebrow{color:var(--brand);}
h2.section-title{font-size:28px;letter-spacing:-.01em;}
.section-sub{margin-top:14px;font-size:16px;color:var(--text-mute);line-height:1.8;}
.section-dark .section-sub{color:rgba(255,255,255,.72);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  color:var(--ink-900);flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:12px 0;
  background:linear-gradient(180deg,rgba(245,247,243,.96),rgba(245,247,243,.82));
  backdrop-filter:blur(10px);
}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:14px;
  background:var(--ink-900);
  border:1px solid rgba(255,255,255,.08);
  border-radius:20px;
  padding:10px 12px 10px 14px;
  box-shadow:0 18px 40px -22px rgba(11,26,22,.7);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding-right:10px;}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;
  height:44px;padding:0 14px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;
  color:rgba(255,255,255,.78);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:2px;background:var(--brand);
  transition:transform var(--t-fast) ease;
}
.nav-item:hover,.nav-item:focus{background:rgba(46,211,154,.10);color:#fff;}
.nav-item.is-active{background:rgba(46,211,154,.16);color:#fff;font-weight:600;}
.nav-item.is-active::before{transform:translateY(-50%) scaleY(1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:8px;}
.nav-cta-mobile{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  cursor:pointer;padding:0;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:#fff;border-radius:2px;transition:transform var(--t-base) ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t-fast) ease,box-shadow var(--t-fast) ease,background var(--t-fast) ease,color var(--t-fast) ease,border-color var(--t-fast) ease;
}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:0 10px 24px -12px rgba(46,211,154,.9);}
.btn-primary:hover,.btn-primary:focus{background:#26C08C;color:var(--ink-900);transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(46,211,154,.95);}
.btn-primary:active{background:var(--brand-deep);transform:translateY(0);}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand-deep);border-radius:var(--radius-img);}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(46,211,154,.10);color:var(--brand-deep);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.35);color:#fff;border-radius:999px;}
.btn-outline-light:hover,.btn-outline-light:focus{background:rgba(255,255,255,.12);color:#fff;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-deep);min-height:44px;
}
.btn-link span{border-bottom:1px solid transparent;transition:border-color var(--t-fast) ease;}
.btn-link:hover span,.btn-link:focus span{border-color:var(--brand-deep);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,26,22,.86) 0%,rgba(11,26,22,.72) 52%,rgba(11,26,22,.6) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:760px;padding:56px 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.5;}
.page-hero h1{font-size:40px;color:#fff;letter-spacing:-.015em;}
.page-hero .hero-desc{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;font-size:12px;font-weight:600;
  background:rgba(46,211,154,.14);color:var(--brand);
  border:1px solid rgba(46,211,154,.24);
}

/* ============ 速览条 ============ */
.summary-strip{margin-top:-40px;position:relative;z-index:5;}
.strip-panel{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  overflow:hidden;
}
.strip-item{padding:24px 22px;border-right:1px solid var(--line);}
.strip-item:last-child{border-right:none;}
.strip-item i{font-size:18px;color:var(--brand-deep);}
.strip-item .strip-title{margin-top:10px;font-size:15px;font-weight:700;}
.strip-item .strip-value{margin-top:4px;font-size:14px;color:var(--text-mute);line-height:1.6;}

/* ============ FAQ 主体 ============ */
.faq-layout{margin-top:8px;}
.sticky-col{position:static;}
.toc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px 20px;
}
.toc-title{font-size:15px;font-weight:700;margin-bottom:14px;}
.toc-list li{margin-bottom:6px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text);background:transparent;
  border-left:3px solid transparent;
}
.toc-list a i{color:var(--brand-deep);font-size:13px;width:16px;}
.toc-list a:hover,.toc-list a:focus{background:rgba(46,211,154,.08);color:var(--brand-deep);border-left-color:var(--brand);}
.toc-help{
  margin-top:20px;padding-top:20px;border-top:1px solid var(--line);
}
.toc-help .toc-title{margin-bottom:8px;}
.toc-help p{font-size:13px;color:var(--text-mute);line-height:1.7;}
.toc-help a{color:var(--brand-deep);font-weight:600;word-break:break-all;}

.faq-group{margin-bottom:40px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.faq-group-head .idx{
  width:34px;height:34px;border-radius:var(--radius-sm);
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(46,211,154,.14);color:var(--brand-deep);
  font-weight:800;font-size:15px;flex:0 0 auto;
}
.faq-group-head h3{font-size:20px;}

.faq-list.accordion{background:transparent;border:none;margin:0;}
.faq-list .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow var(--t-base) ease,border-color var(--t-base) ease,transform var(--t-base) ease;
}
.faq-list .accordion-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px 18px 16px;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  border:none;border-left:3px solid transparent;
  background:transparent;
  transition:background var(--t-fast) ease,border-color var(--t-fast) ease,color var(--t-fast) ease;
}
.faq-list .accordion-title:hover,.faq-list .accordion-title:focus{
  background:rgba(46,211,154,.07);color:var(--text);text-decoration:none;
}
.faq-list .accordion-title::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand-deep);
  flex:0 0 auto;transition:transform var(--t-base) ease;
}
.faq-list .accordion-item.is-active .accordion-title{
  border-left-color:var(--brand);
  background:rgba(46,211,154,.08);
  color:var(--brand-deep);
}
.faq-list .accordion-item.is-active .accordion-title::after{content:"\f068";}
.faq-list .accordion-content{
  border:none;border-top:1px dashed var(--line);
  padding:18px 20px 22px 20px;
  background:var(--surface);
  color:var(--text);
}
.faq-list .accordion-content p{font-size:15px;line-height:1.8;color:var(--text-mute);}
.faq-list .accordion-content .btn{margin-top:14px;}
.faq-note{
  margin-top:12px;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(255,180,61,.14);color:#8A5A00;
  font-size:13px;line-height:1.7;display:flex;gap:8px;align-items:flex-start;
}
.faq-note i{margin-top:4px;}

/* ============ 排查路径 ============ */
.steps-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t-base) ease,box-shadow var(--t-base) ease,border-color var(--t-base) ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(46,211,154,.4);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  background:rgba(255,180,61,.18);color:#8A5A00;
  font-weight:800;font-size:15px;
}
.step-card h3{margin-top:16px;font-size:18px;}
.step-card p{margin-top:10px;font-size:14px;color:var(--text-mute);line-height:1.75;}
.step-line{
  display:flex;align-items:center;gap:6px;margin-top:16px;font-size:13px;color:var(--text-mute);
}
.step-line .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);}
.step-line .dash{flex:1;height:0;border-top:1.5px dashed var(--line);}

/* ============ 图文区块 ============ */
.split-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split-media{
  border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);
  background:rgba(46,211,154,.08);
}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.split-body h2{font-size:28px;}
.split-body .split-desc{margin-top:14px;font-size:16px;color:var(--text-mute);}
.check-list{margin-top:22px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;line-height:1.7;
}
.check-list li:last-child{border-bottom:none;}
.check-list .dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand);
  flex:0 0 auto;margin-top:9px;
}
.check-list strong{font-weight:700;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  border-radius:24px;
  padding:52px 44px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,154,.28),transparent 70%);
}
.cta-panel::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent),var(--accent-2));
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:28px;color:#fff;}
.cta-copy p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.74);}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#fff;padding:64px 0 28px;margin-top:0;}
.footer-grid{margin-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-text{font-size:14px;line-height:2;color:rgba(255,255,255,.6);}
.footer-links li{margin-bottom:2px;}
.footer-links a{font-size:14px;line-height:2;color:rgba(255,255,255,.6);}
.footer-links a:hover,.footer-links a:focus{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--space-section:72px;}
  .nav-toggle{display:block;}
  .nav-actions{display:none;}
  .nav-links{
    display:none;
    position:absolute;left:12px;right:12px;top:calc(100% + 10px);
    background:var(--ink-900);
    border:1px solid rgba(255,255,255,.1);
    border-radius:16px;
    padding:12px;
    box-shadow:0 24px 48px -20px rgba(11,26,22,.8);
    z-index:90;
  }
  .nav-links.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
  .nav-item{width:100%;justify-content:center;background:rgba(255,255,255,.04);}
  .nav-cta-mobile{display:inline-flex;grid-column:1 / -1;justify-content:center;background:var(--brand);color:var(--ink-900);font-weight:700;}
  .nav-cta-mobile:hover,.nav-cta-mobile:focus{background:#26C08C;color:var(--ink-900);}
  .page-hero{min-height:280px;}
  .page-hero h1{font-size:30px;}
  .strip-panel{grid-template-columns:1fr 1fr;}
  .strip-item:nth-child(2){border-right:none;}
  .strip-item:nth-child(1),.strip-item:nth-child(2){border-bottom:1px solid var(--line);}
  .steps-row{grid-template-columns:1fr;}
  .split-block{grid-template-columns:1fr;gap:28px;}
  .cta-panel{grid-template-columns:1fr;padding:40px 28px;}
  .cta-actions{justify-content:flex-start;}
}
@media (min-width:1024px){
  .sticky-col{position:sticky;top:96px;}
}
@media (max-width:639px){
  :root{--space-section:48px;}
  body{font-size:15px;}
  .section-tight{padding:48px 0;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-desc{font-size:15px;}
  h2.section-title,.split-body h2,.cta-copy h2{font-size:23px;}
  .strip-panel{grid-template-columns:1fr;}
  .strip-item{border-right:none;border-bottom:1px solid var(--line);}
  .strip-item:last-child{border-bottom:none;}
  .faq-list .accordion-title{font-size:16px;padding:16px 16px 16px 14px;}
  .toc-card{padding:20px 16px;}
  .cta-panel{padding:32px 20px;border-radius:18px;}
  .cta-panel::after{width:3px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category4 */
:root{
  --ink-900:#0B1A16;
  --ink-800:#123028;
  --brand:#2ED39A;
  --brand-deep:#14A075;
  --accent:#FFB43D;
  --accent-2:#FF6B8A;
  --bg:#F5F7F3;
  --surface:#FFFFFF;
  --line:#E2E8E1;
  --text:#17231F;
  --text-mute:#5F7169;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow:0 1px 2px rgba(11,26,22,.06),0 12px 32px -12px rgba(11,26,22,.18);
  --shadow-hover:0 2px 4px rgba(11,26,22,.08),0 18px 42px -12px rgba(11,26,22,.26);
  --ease:200ms ease;
  --gap:8px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand);}
button,input,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{line-height:1.25;color:var(--text);margin:0 0 12px;font-weight:700;}
h1{font-size:40px;}
h2{font-size:28px;}
h3{font-size:20px;}
h4{font-size:17px;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{display:inline-block;font-size:14px;color:var(--brand-deep);letter-spacing:.08em;margin-bottom:8px;font-weight:600;}
.section-head p{max-width:720px;color:var(--text-mute);margin:0;}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.line-sep{height:1px;background:var(--line);border:0;margin:0;}

/* Foundation override */
.row{max-width:none;margin-left:-0.9375rem;margin-right:-0.9375rem;}
.columns{padding-left:0.9375rem;padding-right:0.9375rem;}
.button,button{background:none;color:inherit;}
.accordion{background:transparent;border:0;border-radius:0;margin:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:999px;
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
  text-align:center;line-height:1.2;
}
.btn-primary{background:var(--brand);color:#08281E;box-shadow:0 8px 20px -10px rgba(46,211,154,.9);}
.btn-primary:hover,.btn-primary:focus{background:#25C58F;color:#08281E;transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(46,211,154,1);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);border-radius:12px;}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(46,211,154,.12);color:#9BF0CE;transform:translateY(-2px);}
.btn-outline{background:transparent;border-color:var(--brand-deep);color:var(--brand-deep);border-radius:12px;}
.btn-outline:hover,.btn-outline:focus{background:rgba(46,211,154,.12);color:var(--brand-deep);border-color:var(--brand);}
.btn-sm{min-height:44px;padding:0 20px;font-size:15px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:600;font-size:15px;border-bottom:1px solid transparent;}
.text-link:hover{border-bottom-color:var(--brand);}
:focus-visible{outline:3px solid rgba(46,211,154,.45);outline-offset:2px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 0;}
.nav-shell{
  position:relative;display:flex;align-items:center;gap:20px;
  background:var(--ink-900);border-radius:20px;padding:12px 16px;
  box-shadow:0 1px 2px rgba(11,26,22,.08),0 18px 40px -18px rgba(11,26,22,.55);
  border:1px solid rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;flex:0 0 auto;}
.brand:hover{color:#fff;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(46,211,154,.16);color:var(--brand);border:1px solid rgba(46,211,154,.35);
}
.brand-mark svg{width:20px;height:20px;}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:wrap;}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 14px;border-radius:10px;font-size:15px;color:rgba(255,255,255,.78);
  transition:background var(--ease),color var(--ease);
}
.nav-item::before{
  content:"";width:10px;height:10px;border-radius:3px;background:rgba(255,255,255,.25);
  transition:background var(--ease);
}
.nav-item:hover{background:rgba(46,211,154,.14);color:#fff;}
.nav-item:hover::before{background:var(--brand);}
.nav-item.is-active{background:rgba(46,211,154,.18);color:#fff;}
.nav-item.is-active::before{background:var(--brand);}
.nav-item.is-active::after{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand);
}
.nav-item.nav-cta-mobile{display:none;}
.nav-actions{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}

/* 分类页 Hero */
.page-hero{
  position:relative;color:#fff;padding:64px 0 88px;min-height:300px;display:flex;align-items:center;
  background-image:linear-gradient(rgba(11,26,22,.78),rgba(11,26,22,.82)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero h1{color:#fff;font-size:40px;margin-bottom:14px;max-width:860px;}
.page-hero .hero-sub{color:rgba(255,255,255,.82);font-size:17px;max-width:680px;margin-bottom:26px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb em{font-style:normal;color:rgba(255,255,255,.92);}

/* 数据条 */
.stat-strip{margin-top:-44px;position:relative;z-index:5;}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:24px 12px;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat-item{padding:0 20px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-value{font-size:26px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{font-size:14px;color:var(--text-mute);margin-top:4px;}

/* 筛选 */
.filter-bar{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 20px;box-shadow:var(--shadow);margin-bottom:28px;
}
.filter-label{font-size:14px;color:var(--text-mute);font-weight:600;}
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap;}
.filter-tab{
  min-height:44px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--text-mute);font-size:15px;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.filter-tab:hover{border-color:var(--brand);color:var(--brand-deep);}
.filter-tab.is-on{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}

/* 卡片通用 */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:rgba(46,211,154,.14);color:var(--brand-deep);}
.badge-accent{background:rgba(255,180,61,.18);color:#8A5A00;}
.badge-mute{background:#EEF2EE;color:var(--text-mute);}
.meta{font-size:14px;color:var(--text-mute);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}

/* 置顶公告横卡 */
.spotlight{
  display:grid;grid-template-columns:40% 1fr;gap:0;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);margin-bottom:28px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.spotlight:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.spotlight-media{position:relative;min-height:240px;}
.spotlight-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.spotlight-body{padding:28px;display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.spotlight-body h3{font-size:22px;margin:0;}
.spotlight-body p{margin:0;color:var(--text-mute);}

/* 公告卡 */
.notice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.notice-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.notice-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(46,211,154,.08);}
.notice-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.notice-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;align-items:flex-start;}
.notice-body h3{font-size:20px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.notice-body p{
  margin:0;color:var(--text-mute);font-size:15px;line-height:1.6;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.notice-card .meta{margin-top:auto;}
.col-gap{margin-bottom:30px;}

/* 深色面板 */
.panel-dark{background:var(--ink-900);color:#fff;border-radius:calc(var(--radius-card) + 8px);padding:48px;position:relative;overflow:hidden;}
.panel-dark::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,154,.28),transparent 70%);
}
.panel-dark h2{color:#fff;}
.panel-dark p{color:rgba(255,255,255,.72);}
.panel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:32px;position:relative;z-index:2;}
.panel-item{padding-left:18px;border-left:3px solid var(--brand);}
.panel-item h4{color:#fff;margin-bottom:6px;}
.panel-item p{font-size:15px;margin:0;}

/* 订阅 */
.subscribe-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:40px;
}
.subscribe-card h2{margin-bottom:8px;}
.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.field input,.field select{
  width:100%;height:48px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:#fff;padding:0 14px;color:var(--text);transition:border-color var(--ease),box-shadow var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,211,154,.2);
}
.field .field-hint{font-size:13px;color:var(--text-mute);margin-top:6px;}
.form-actions{display:flex;align-items:center;gap:16px;margin-top:24px;flex-wrap:wrap;}

/* FAQ */
.faq-wrap{max-width:900px;}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;
  margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden;
}
.accordion-title{
  position:relative;display:block;padding:20px 60px 20px 22px;font-size:17px;font-weight:600;
  color:var(--text);background:#fff;border:0;
}
.accordion-title:hover{color:var(--brand-deep);}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-deep);line-height:1;
}
.accordion-title[aria-expanded="true"]::before{content:"–";}
.accordion-content{
  border:0;background:#F1FAF5;padding:4px 22px 22px;border-left:3px solid var(--brand);
  color:var(--text-mute);font-size:16px;line-height:1.8;
}
.accordion-content p:last-child{margin-bottom:0;}
.accordion-content .btn{margin-top:14px;}

/* CTA */
.cta-band{background:var(--ink-900);border-radius:calc(var(--radius-card) + 8px);padding:56px 48px;color:#fff;text-align:center;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-120px;transform:translateX(-50%);
  width:420px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(46,211,154,.28),transparent 70%);
}
.cta-band h2{color:#fff;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.74);max-width:640px;margin:0 auto 28px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2;}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.6);padding:72px 0 24px;margin-top:96px;}
.footer-grid{padding-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;}
.footer-text{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);}
.footer-title{font-size:15px;color:#fff;font-weight:700;margin-bottom:14px;}
.footer-links li{list-style:none;}
.footer-links a{display:inline-block;color:rgba(255,255,255,.6);font-size:14px;line-height:2;transition:color var(--ease);}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:14px;color:rgba(255,255,255,.5);
}

/* 响应式 */
@media (max-width:1023px){
  h1{font-size:30px;}
  h2{font-size:23px;}
  .section{padding:72px 0;}
  .page-hero h1{font-size:30px;}
  .nav-toggle{display:flex;}
  .nav-actions{display:none;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:var(--ink-900);border:1px solid rgba(255,255,255,.08);border-radius:16px;
    padding:14px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;
    box-shadow:0 24px 48px -20px rgba(0,0,0,.6);transition:opacity var(--ease);
  }
  .nav-links.is-open{display:grid;}
  .nav-item{justify-content:flex-start;}
  .nav-item.nav-cta-mobile{
    display:flex;grid-column:1 / -1;justify-content:center;background:var(--brand);color:#08281E;font-weight:700;border-radius:12px;
  }
  .nav-item.nav-cta-mobile::before{background:rgba(8,40,30,.4);}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-item{padding:14px 18px;border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:nth-child(odd){border-right:1px solid var(--line);}
  .stat-item:nth-last-child(-n+2){border-bottom:0;}
  .spotlight{grid-template-columns:1fr;}
  .spotlight-media{min-height:200px;}
  .panel-grid{grid-template-columns:1fr;gap:20px;}
  .form-grid{grid-template-columns:1fr;}
  .panel-dark,.subscribe-card,.cta-band{padding:32px 24px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:24px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  .page-hero{padding:44px 0 76px;min-height:260px;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-sub{font-size:15px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item{border-right:0 !important;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
  .spotlight-body,.notice-body{padding:20px;}
  .btn{width:100%;}
  .filter-tab{width:auto;}
  .form-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .footer-bottom{flex-direction:column;gap:6px;}
}