/* roulang page: index */
:root{
  --brand:#5B2EDD;
  --brand-deep:#4720b4;
  --accent:#FF6B35;
  --accent-deep:#e85c28;
  --mint:#14C4A8;
  --bg:#FBF9F6;
  --surface:#F3EFFA;
  --dark:#17121F;
  --text:#1E1A2B;
  --text-2:#5A5468;
  --text-3:#8B8598;
  --line:#E8E3F2;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(30,26,43,.06);
  --sh-2:0 10px 24px rgba(91,46,221,.14);
  --sh-3:0 18px 40px rgba(30,26,43,.12);
  --container:1200px;
  --font:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Source Han Sans SC,system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font);font-weight:700;color:var(--text);letter-spacing:-.01em;line-height:1.35}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{display:inline-block;font-size:13px;line-height:22px;font-weight:600;letter-spacing:.04em;color:var(--brand);background:rgba(91,46,221,.08);border-radius:999px;padding:2px 14px;margin-bottom:14px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:800}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.textlink{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;transition:gap .2s,color .2s}
.textlink:hover{gap:10px;color:var(--brand-deep)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s,background .2s,box-shadow .2s,border-color .2s,color .2s;background:none;text-align:center}
.btn i{font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 20px rgba(255,107,53,.24)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 14px 26px rgba(255,107,53,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(91,46,221,.35)}
.btn-ghost:hover{background:rgba(91,46,221,.06);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;line-height:20px;font-weight:600;padding:1px 10px;border-radius:999px;background:rgba(91,46,221,.09);color:var(--brand);white-space:nowrap}
.badge-accent{background:rgba(255,107,53,.12);color:var(--accent-deep)}
.badge-mint{background:rgba(20,196,168,.14);color:#0d8d79}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,249,246,.96);border-bottom:1px solid transparent;transition:height .2s,border-color .2s,box-shadow .2s,background .2s}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 16px rgba(30,26,43,.06);background:#fff}
.header-inner{display:flex;align-items:center;height:76px;gap:16px;transition:height .2s}
.site-header.is-scrolled .header-inner{height:64px}
.nav-left,.nav-right{flex:1 1 0;display:flex;align-items:center;gap:26px;min-width:0}
.nav-right{justify-content:flex-end}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 2px;white-space:nowrap;transition:color .2s}
.nav-link::after{content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;background:var(--brand);border-radius:2px;transform:scaleX(0);transition:transform .2s}
.nav-link:hover,.nav-link.is-active{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.brand{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;line-height:1.2;text-align:center}
.brand-main{font-size:21px;font-weight:800;color:var(--brand);letter-spacing:.01em}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--text-3);margin-top:3px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);align-items:center;justify-content:center;font-size:17px}
.mobile-drawer{display:none;position:fixed;inset:64px 0 0 0;background:#fff;z-index:55;padding:16px 24px 32px;overflow-y:auto}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--text)}
.mobile-drawer a.is-active{color:var(--brand);font-weight:600}
.mobile-drawer .btn{margin-top:22px}

/* Hero */
.hero{
  position:relative;
  padding:72px 0 84px;
  overflow:hidden;
  background-color:var(--bg);
  background-image:
    radial-gradient(rgba(91,46,221,.07) 1px, transparent 1px),
    linear-gradient(135deg, rgba(91,46,221,.10), rgba(255,107,53,.07) 70%, rgba(251,249,246,.9));
  background-size:18px 18px, 100% 100%;
}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-copy h1{font-size:40px;line-height:1.28;font-weight:800;margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-points i{color:var(--mint);font-size:15px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.6)}
.hero-float{position:absolute;right:-12px;bottom:-22px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);min-width:190px}
.hero-float strong{display:block;font-size:13px;color:var(--text-3);font-weight:500;margin-bottom:8px}
.hero-float span{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);line-height:2}
.hero-float span i{color:var(--brand);font-size:13px;width:16px}

/* 核心能力：1 大 + 2 小 */
.cap-grid{display:grid;grid-template-columns:2fr 1fr;grid-template-rows:auto auto;gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(91,46,221,.3)}
.cap-main{grid-row:span 2;overflow:hidden;display:flex;flex-direction:column}
.cap-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.cap-main .cap-body{padding:26px 28px 28px}
.cap-main h3{font-size:22px;margin:12px 0 12px}
.cap-main p{color:var(--text-2);font-size:15px;line-height:1.85}
.cap-side{padding:26px 24px;display:flex;flex-direction:column}
.cap-icon{width:46px;height:46px;border-radius:12px;background:var(--surface);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px}
.cap-side h3{font-size:18px;margin-bottom:10px}
.cap-side p{color:var(--text-2);font-size:14.5px;line-height:1.8;flex:1}
.cap-side .textlink{margin-top:16px;font-size:14px}

/* 深色数据带 */
.data-band{background:var(--dark);color:#fff;padding:64px 0}
.data-band .band-inner{display:grid;grid-template-columns:1fr 2fr;gap:48px;align-items:center}
.data-band h2{color:#fff;font-size:28px;line-height:1.35}
.data-band .band-desc{color:rgba(255,255,255,.62);font-size:15px;line-height:1.85;margin-top:14px}
.data-list{display:grid;grid-template-columns:repeat(4,1fr)}
.data-item{padding:8px 22px;border-left:1px solid rgba(255,255,255,.1)}
.data-item:first-child{border-left:0;padding-left:0}
.data-item .num{font-size:36px;font-weight:800;color:var(--accent);line-height:1.1;letter-spacing:-.02em}
.data-item .num small{font-size:15px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.7)}
.data-item .label{margin-top:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.6)}

/* 场景交错图文 */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.scene-row + .scene-row{margin-top:40px}
.scene-row.reverse .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-1)}
.scene-body h3{font-size:22px;margin:12px 0 12px}
.scene-body p{color:var(--text-2);font-size:15px;line-height:1.85}
.scene-body .textlink{margin-top:16px}

/* 方案序号列表 */
.plan-list{max-width:900px}
.plan-item{display:flex;gap:24px;padding:26px 0;border-bottom:1px solid var(--line)}
.plan-item:first-child{border-top:1px solid var(--line)}
.plan-num{flex:0 0 52px;width:52px;height:52px;border-radius:50%;border:2px solid rgba(91,46,221,.35);color:var(--brand);font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center}
.plan-body h3{font-size:19px;margin-bottom:10px}
.plan-body ul{display:flex;flex-wrap:wrap;gap:8px 10px}
.plan-body li{font-size:14px;color:var(--text-2);background:var(--surface);border-radius:999px;padding:3px 14px}

/* 最新信息 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.news-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:28px}
.news-feature{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s,box-shadow .25s}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-feature .nf-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.news-feature h3{font-size:21px;margin:12px 0 10px;line-height:1.45}
.news-feature p{color:var(--text-2);font-size:15px;line-height:1.8;flex:1}
.news-feature time{display:block;margin-top:16px;font-size:13px;color:var(--text-3)}
.news-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:4px 24px}
.news-item{display:block;padding:18px 0;border-bottom:1px solid var(--line);transition:padding-left .2s}
.news-item:last-child{border-bottom:0}
.news-item:hover{padding-left:6px}
.news-item h3{font-size:16px;font-weight:600;line-height:1.6;margin:8px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item time{font-size:13px;color:var(--text-3)}
.news-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--text-3)}
.news-empty i{font-size:26px;color:var(--brand);display:block;margin-bottom:12px}
.news-empty p{font-size:15px;margin-bottom:18px}

/* FAQ */
.faq{background:var(--surface)}
.faq .accordion{max-width:860px;margin:0 auto;background:transparent;border:0}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-title{position:relative;display:block;font-size:17px;font-weight:600;color:var(--text);background:transparent;border-left:3px solid transparent;padding:20px 48px 20px 18px;transition:color .2s,border-color .2s}
.faq .accordion-title:hover{color:var(--brand)}
.faq .accordion-title::before{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:auto;right:18px;top:50%;margin-top:0;transform:translateY(-50%);font-size:13px;color:var(--brand);transition:transform .25s;width:auto;height:auto}
.faq .accordion-item.is-active .accordion-title{color:var(--brand);border-left-color:var(--brand)}
.faq .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(180deg)}
.faq .accordion-content{background:transparent;border:0;padding:0 48px 22px 18px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* 联系与表单 */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-info h2{font-size:30px;line-height:1.35;margin-bottom:16px}
.contact-info > p{color:var(--text-2);font-size:15px;line-height:1.85;margin-bottom:28px}
.contact-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.contact-list i{color:var(--brand);font-size:16px;margin-top:5px;width:18px}
.contact-list strong{display:block;font-size:15px;margin-bottom:3px}
.contact-list span{color:var(--text-2);font-size:14px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.field input,.field select,.field textarea{width:100%;height:48px;border:1px solid var(--line);border-radius:10px;padding:0 14px;color:var(--text);background:#fff;transition:border-color .2s,box-shadow .2s,background .2s}
.field textarea{height:130px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,46,221,.12);background:rgba(91,46,221,.02)}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7;margin:4px 0 22px}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand)}
.form-tip{display:none;margin-top:16px;padding:12px 16px;border-radius:10px;font-size:14px;background:rgba(20,196,168,.12);color:#0d8d79}
.form-tip.is-visible{display:block}

/* 尾部 CTA 带 */
.cta-band{background:var(--dark);color:#fff;padding:72px 0}
.cta-band .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.65);font-size:15px;max-width:620px}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .fb-logo{font-size:19px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin-bottom:16px}
.footer-anchors{display:flex;flex-wrap:wrap;gap:8px}
.footer-anchors a{font-size:13px;padding:3px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.7);transition:color .2s,border-color .2s}
.footer-anchors a:hover{color:var(--accent);border-color:rgba(255,107,53,.5)}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.65);transition:color .2s}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{font-size:14px;line-height:1.8;margin-bottom:10px;color:rgba(255,255,255,.65)}
.footer-contact i{color:var(--brand);margin-right:8px}
.footer-qr{width:88px;height:88px;border-radius:10px;border:1px dashed rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;font-size:12px;color:rgba(255,255,255,.45);margin-top:14px;text-align:center;padding:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.48)}

/* 响应式 */
@media screen and (max-width:1279px){
  .hero-copy h1{font-size:34px}
  .data-band .band-inner{grid-template-columns:1fr;gap:32px}
  .data-list{grid-template-columns:repeat(4,1fr)}
}
@media screen and (max-width:1023px){
  .nav-left,.nav-right{display:none}
  .header-inner{justify-content:space-between}
  .menu-toggle{display:flex}
  .brand{align-items:flex-start;text-align:left}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-media{order:2}
  .hero-float{right:12px;bottom:-18px}
  .cap-grid{grid-template-columns:1fr 1fr}
  .cap-main{grid-column:span 2;grid-row:auto}
  .news-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .data-list{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .data-item:nth-child(3){border-left:0;padding-left:0}
  .section{padding:64px 0}
}
@media screen and (max-width:639px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .hero{padding:48px 0 60px}
  .hero-copy h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto}
  .brand-main{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:.1em}
  .cap-grid{grid-template-columns:1fr}
  .cap-main{grid-column:auto}
  .scene-row,.scene-row.reverse{grid-template-columns:1fr;gap:20px}
  .scene-row.reverse .scene-media{order:0}
  .plan-item{gap:16px}
  .plan-num{flex:0 0 42px;width:42px;height:42px;font-size:14px}
  .news-head{flex-direction:column;align-items:flex-start;gap:10px}
  .news-list{padding:4px 18px}
  .faq .accordion-title{font-size:16px;padding:18px 44px 18px 14px}
  .faq .accordion-content{padding:0 24px 20px 14px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .cta-band h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .data-item .num{font-size:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: article */
:root{
  --brand:#5B2EDD;
  --brand-dark:#4A22BA;
  --brand-soft:rgba(91,46,221,.08);
  --accent:#FF6B35;
  --accent-dark:#E85A26;
  --mint:#14C4A8;
  --bg:#FBF9F6;
  --surface:#F3EFFA;
  --dark:#17121F;
  --text:#1E1A2B;
  --text-2:#5A5468;
  --text-3:#8B8598;
  --border:#E8E3F2;
  --white:#FFFFFF;
  --radius-xl:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-1:0 1px 2px rgba(30,26,43,.06);
  --shadow-2:0 10px 24px rgba(91,46,221,.14);
  --shadow-3:0 18px 40px rgba(30,26,43,.12);
  --ff:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(251,249,246,.96);
  border-bottom:1px solid transparent;
  transition:height .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--border);
  box-shadow:0 6px 18px rgba(30,26,43,.06);
}
.nav-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  height:76px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-bar{height:64px;}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;}
.nav-right{justify-content:flex-end;gap:18px;}
.brand-logo{
  font-size:21px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--brand);
  white-space:nowrap;
}
.brand-logo span{color:var(--text);}
.brand-logo:hover{color:var(--brand-dark);}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 2px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-link:hover,.nav-link.is-active{color:var(--brand);}
.nav-link:hover::after,.nav-link.is-active::after{width:60%;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--radius-xs);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,107,53,.28);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid rgba(91,46,221,.35);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(91,46,221,.24);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--radius-xs);
  border:1px solid var(--border);
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .22s ease,opacity .22s 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);}

.mobile-drawer{
  position:fixed;
  left:0;
  right:0;
  top:76px;
  bottom:0;
  background:#fff;
  border-top:1px solid var(--border);
  padding:20px 24px 40px;
  transform:translateX(105%);
  transition:transform .28s ease;
  z-index:55;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  border-bottom:1px solid var(--border);
}
.mobile-drawer a:hover{color:var(--brand);}
.mobile-drawer .drawer-cta{
  margin-top:22px;
  height:48px;
  justify-content:center;
  background:var(--accent);
  color:#fff;
  border-radius:var(--radius-sm);
  border-bottom:0;
  font-weight:600;
}
.mobile-drawer .drawer-cta:hover{background:var(--accent-dark);color:#fff;}
.drawer-contact{
  margin-top:24px;
  font-size:14px;
  color:var(--text-3);
  line-height:2;
}

/* ============ 面包屑 ============ */
.breadcrumb-wrap{
  background:#fff;
  border-bottom:1px solid var(--border);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:14px;
  color:var(--text-3);
}
.breadcrumb i{font-size:11px;color:var(--text-3);}
.breadcrumb .crumb-home{color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .crumb-active{color:var(--brand);font-weight:600;}

/* ============ 文章头部 ============ */
.article-hero{
  background:
    linear-gradient(135deg,rgba(91,46,221,.07),rgba(255,107,53,.06)),
    radial-gradient(rgba(91,46,221,.08) 1px,transparent 1px);
  background-size:auto,14px 14px;
  border-bottom:1px solid var(--border);
  padding:56px 0 44px;
}
.article-hero-inner{max-width:860px;margin:0 auto;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(20,196,168,.12);
  color:#0E8C79;
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:18px;
}
.article-hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.4px;
  color:var(--text);
  margin-bottom:18px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:22px;
  font-size:14px;
  color:var(--text-3);
}
.meta-row i{color:var(--brand);margin-right:6px;font-size:13px;}

/* ============ 正文 ============ */
.article-main{padding:56px 0 24px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 260px;
  gap:48px;
  align-items:start;
}
.article-body{
  max-width:820px;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:26px;
  line-height:1.4;
  font-weight:700;
  color:var(--text);
  margin:48px 0 18px;
  padding-left:14px;
  border-left:4px solid var(--brand);
}
.article-body h3{
  font-size:20px;
  line-height:1.5;
  font-weight:700;
  margin:34px 0 14px;
  color:var(--text);
}
.article-body h4{
  font-size:17px;
  font-weight:700;
  margin:24px 0 12px;
}
.article-body ul{list-style:none;margin:0 0 20px;padding:0;}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin:8px 0;
  line-height:1.9;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:13px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
}
.article-body ol{list-style:decimal;margin:0 0 20px;padding-left:24px;}
.article-body ol li{margin:8px 0;line-height:1.9;}
.article-body blockquote{
  margin:28px 0;
  padding:18px 22px;
  border-left:4px solid var(--brand);
  background:var(--brand-soft);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);
  font-size:16px;
}
.article-body img{border-radius:var(--radius-sm);margin:26px 0;}
.article-body figure{margin:28px 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  margin-top:10px;
}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body strong{font-weight:700;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--border);
  padding:12px 14px;
  text-align:left;
}
.article-body th{background:var(--surface);font-weight:600;}
.article-body pre{
  background:var(--dark);
  color:#EDE9F7;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.article-body code{
  background:var(--surface);
  color:var(--brand-dark);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:36px 0;}

/* 侧栏锚点目录 */
.article-aside{
  position:sticky;
  top:100px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
}
.article-aside h4{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--border);
}
.article-aside ul li{margin:4px 0;}
.article-aside ul li a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--text-2);
  padding:7px 10px;
  border-radius:var(--radius-xs);
  border-left:2px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.article-aside ul li a:hover{
  background:var(--brand-soft);
  color:var(--brand);
  border-left-color:var(--brand);
}
.aside-help{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--text-3);
  line-height:1.8;
}

/* 空态 */
.empty-state{
  max-width:820px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:56px 32px;
  text-align:center;
  box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:64px;
  height:64px;
  margin:0 auto 20px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--text-2);margin-bottom:24px;}

/* 文末标签 */
.article-tags{
  max-width:820px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--border);
}
.article-tags .tag-label{font-size:14px;color:var(--text-3);margin-right:4px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:var(--surface);
  color:var(--text-2);
  font-size:13px;
  border:1px solid var(--border);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:rgba(91,46,221,.1);color:var(--brand);border-color:rgba(91,46,221,.3);}

/* ============ 相关推荐 ============ */
.section{padding:72px 0;}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{margin-bottom:14px;}
.section-head h2{
  font-size:32px;
  line-height:1.34;
  font-weight:800;
  color:var(--text);
  margin-bottom:12px;
}
.section-head p{color:var(--text-2);font-size:16px;max-width:720px;}

.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(91,46,221,.3);
}
.related-card .thumb{
  aspect-ratio:16/10;
  background:var(--surface);
  overflow:hidden;
}
.related-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.related-card:hover .thumb img{transform:scale(1.04);}
.related-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card .badge{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(20,196,168,.14);
  color:#0E8C79;
  font-size:12px;
  font-weight:600;
}
.related-card h3{
  font-size:17px;
  line-height:1.5;
  font-weight:700;
  color:var(--text);
}
.related-card p{font-size:14px;line-height:1.7;color:var(--text-2);}
.related-card .foot{
  margin-top:auto;
  padding-top:12px;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.related-card .foot i{color:var(--brand);}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--dark);
  padding:72px 0;
  color:#fff;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-inner h2{
  font-size:30px;
  line-height:1.4;
  font-weight:800;
  color:#fff;
  margin-bottom:10px;
}
.cta-inner p{color:rgba(255,255,255,.68);font-size:16px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-line{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.28);
}
.btn-line:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.5);}
.cta-back{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:rgba(255,255,255,.75);
  margin-top:18px;
}
.cta-back:hover{color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.fb-logo{
  font-size:19px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand p{line-height:1.85;color:rgba(255,255,255,.6);margin-bottom:18px;}
.footer-anchors{display:flex;flex-direction:column;gap:8px;}
.footer-anchors a{color:rgba(255,255,255,.72);}
.footer-anchors a:hover{color:var(--accent);}
.site-footer h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.66);}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
  color:rgba(255,255,255,.66);
}
.footer-contact i{color:var(--accent);width:16px;}
.footer-qr{
  margin-top:16px;
  width:104px;
  height:104px;
  border-radius:var(--radius-sm);
  border:1px dashed rgba(255,255,255,.28);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:rgba(255,255,255,.55);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:flex;}
  .nav-bar{grid-template-columns:1fr auto;height:68px;}
  .site-header.is-scrolled .nav-bar{height:62px;}
  .mobile-drawer{top:68px;}
  .brand-logo{font-size:19px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-aside{display:none;}
  .article-hero{padding:40px 0 34px;}
  .article-hero h1{font-size:32px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}

@media (max-width:639px){
  .container{padding:0 16px;}
  .article-hero h1{font-size:26px;line-height:1.34;}
  .article-body{font-size:16px;line-height:1.78;}
  .article-body h2{font-size:21px;margin-top:38px;}
  .article-body h3{font-size:18px;}
  .meta-row{gap:14px;font-size:13px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .breadcrumb{font-size:13px;}
}

/* roulang page: category1 */
:root{
  --brand:#5B2EDD;
  --brand-dark:#4722b8;
  --accent:#FF6B35;
  --accent-dark:#e85a26;
  --mint:#14C4A8;
  --bg:#FBF9F6;
  --surface:#F3EFFA;
  --dark:#17121F;
  --t1:#1E1A2B;
  --t2:#5A5468;
  --t3:#8B8598;
  --border:#E8E3F2;
  --white:#ffffff;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-1:0 1px 2px rgba(30,26,43,.06);
  --shadow-2:0 10px 24px rgba(91,46,221,.14);
  --shadow-3:0 18px 40px rgba(30,26,43,.12);
  --container:1200px;
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;line-height:1.35;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(251,249,246,.96);
  border-bottom:1px solid transparent;
  transition:height .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--border);
  box-shadow:0 4px 16px rgba(30,26,43,.06);
  background:rgba(251,249,246,.98);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:var(--header-h);
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:64px;}

.brand{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:2px;
  font-size:20px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--t1);
  white-space:nowrap;
}
.brand .brand-main{color:var(--brand);}
.brand .brand-sub{color:var(--t1);}
.brand:hover{color:var(--t1);}

.nav-left{display:flex;align-items:center;gap:8px;}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:8px;}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--t2);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:0;
  height:2px;
  background:var(--brand);
  transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{width:60%;}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--border);
  background:var(--white);
  border-radius:var(--radius-xs);
  color:var(--t1);
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--border);
  background:var(--bg);
  padding:8px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;
  line-height:52px;
  padding:0 24px;
  font-size:16px;
  color:var(--t1);
  border-bottom:1px solid var(--border);
}
.mobile-drawer a:hover{background:var(--surface);color:var(--brand);}
.drawer-foot{
  padding:18px 24px 0;
  font-size:14px;
  color:var(--t3);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,107,53,.24);
}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,107,53,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-light{
  background:#fff;
  color:var(--brand);
  box-shadow:var(--shadow-2);
}
.btn-light:hover{color:var(--brand-dark);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--radius-xs);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:20px 0 0;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--t3);
  line-height:1.6;
}
.breadcrumb .bc-home{color:var(--t3);}
.breadcrumb .bc-sep{color:#c9c3d8;}
.breadcrumb .bc-current{color:var(--brand);font-weight:600;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  margin-top:20px;
  min-height:320px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background-color:var(--dark);
  background-image:linear-gradient(135deg,rgba(91,46,221,.86),rgba(255,107,53,.62)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:14px 14px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.55fr 1fr;
  gap:40px;
  align-items:center;
  padding:52px;
  width:100%;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.3);
  color:#fff;
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:18px;
}
.page-hero h1{
  color:#fff;
  font-size:40px;
  line-height:1.28;
  font-weight:800;
  margin-bottom:16px;
  letter-spacing:.5px;
}
.hero-lead{
  color:rgba(255,255,255,.9);
  font-size:17px;
  line-height:1.8;
  max-width:640px;
  margin-bottom:24px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
}
.hero-points li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.95);
  font-size:14px;
}
.hero-points i{color:var(--mint);}
.hero-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-3);
  aspect-ratio:4/3;
  background:rgba(255,255,255,.1);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-18px;
  background:#fff;
  border-radius:var(--radius-sm);
  padding:14px 18px;
  box-shadow:var(--shadow-3);
  min-width:170px;
}
.hero-float strong{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--accent);
  line-height:1.2;
}
.hero-float span{font-size:13px;color:var(--t2);}

/* ---------- 板块通用 ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-block;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(20,196,168,.12);
  color:#0d8d79;
  font-size:13px;
  font-weight:600;
  margin-bottom:14px;
}
.section-head h2{
  font-size:32px;
  line-height:1.35;
  margin-bottom:14px;
}
.section-head p{
  font-size:16px;
  color:var(--t2);
  line-height:1.8;
  margin:0;
}

/* ---------- 说明区 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:start;
}
.intro-text h3{
  font-size:22px;
  margin:28px 0 14px;
}
.intro-text h3:first-child{margin-top:0;}
.intro-text p{color:var(--t2);font-size:16.5px;line-height:1.85;}
.check-list{margin-top:22px;}
.check-list li{
  position:relative;
  padding-left:30px;
  margin-bottom:12px;
  color:var(--t2);
  font-size:15.5px;
  line-height:1.9;
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;
  top:3px;
  color:var(--mint);
  font-size:13px;
}
.intro-side{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.intro-side img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.intro-side-body{padding:24px;}
.intro-side-body h3{font-size:18px;margin-bottom:10px;}
.intro-side-body p{font-size:14.5px;color:var(--t2);line-height:1.8;margin-bottom:16px;}
.spec-list li{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-top:1px solid var(--border);
  font-size:14.5px;
  color:var(--t2);
}
.spec-list li span:last-child{color:var(--t1);font-weight:600;}

/* ---------- 条目区 ---------- */
.item-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.item-card{
  display:flex;
  gap:18px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.item-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(91,46,221,.3);
}
.item-thumb{
  flex:0 0 118px;
  width:118px;
  height:118px;
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:var(--surface);
}
.item-thumb img{width:100%;height:100%;object-fit:cover;}
.item-body{flex:1;min-width:0;}
.badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:rgba(20,196,168,.14);
  color:#0d8d79;
  margin-bottom:8px;
}
.badge-violet{background:rgba(91,46,221,.12);color:var(--brand);}
.item-body h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:8px;
}
.item-body p{
  font-size:14.5px;
  color:var(--t2);
  line-height:1.75;
  margin-bottom:12px;
}
.item-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--t3);
  border-top:1px dashed var(--border);
  padding-top:12px;
}
.item-meta time{color:var(--t3);}
.item-meta a{margin-left:auto;font-weight:600;font-size:13.5px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-acc{border:none;background:transparent;margin:0;}
.faq-acc .accordion-item{
  border:none;
  border-top:1px solid var(--border);
  background:transparent;
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--border);}
.faq-acc .accordion-title{
  position:relative;
  display:block;
  padding:22px 48px 22px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--t1);
  background:transparent;
  border:none;
  transition:color .2s ease,padding-left .2s ease;
}
.faq-acc .accordion-title::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:0;
  background:var(--brand);
  border-radius:2px;
  transition:height .2s ease;
}
.faq-acc .accordion-title::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:18px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--t3);
  transition:transform .25s ease,color .25s ease;
}
.faq-acc .accordion-title:hover{color:var(--brand);}
.faq-acc .accordion-item.is-active .accordion-title{color:var(--brand);padding-left:24px;}
.faq-acc .accordion-item.is-active .accordion-title::before{height:26px;}
.faq-acc .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(180deg);color:var(--brand);}
.faq-acc .accordion-content{
  background:transparent !important;
  border:none;
  padding:0 48px 24px 24px;
  color:var(--t2);
  font-size:15px;
  line-height:1.9;
}
.faq-acc .accordion-content p{color:var(--t2);font-size:15px;line-height:1.9;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--dark);
  padding:96px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:1.4fr .6fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{
  color:#fff;
  font-size:32px;
  line-height:1.4;
  margin-bottom:14px;
}
.cta-band p{
  color:rgba(255,255,255,.66);
  font-size:16px;
  line-height:1.85;
  margin:0;
  max-width:620px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}
.cta-note{
  font-size:13.5px;
  color:rgba(255,255,255,.55);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.fb-logo{
  font-size:19px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand p{
  color:rgba(255,255,255,.62);
  line-height:1.85;
  margin-bottom:18px;
}
.footer-anchors{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.footer-anchors a{
  padding:6px 14px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  color:rgba(255,255,255,.8);
  font-size:13px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.footer-anchors a:hover{border-color:var(--accent);color:var(--accent);background:rgba(255,107,53,.08);}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.4px;
}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.68);}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
  color:rgba(255,255,255,.68);
}
.footer-contact i{color:var(--accent);width:16px;text-align:center;}
.footer-qr{
  margin-top:18px;
  width:104px;
  height:104px;
  border-radius:var(--radius-sm);
  border:1px dashed rgba(255,255,255,.28);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  line-height:1.6;
  color:rgba(255,255,255,.5);
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:24px 0;
  font-size:13.5px;
  color:rgba(255,255,255,.48);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{grid-template-columns:48px 1fr 48px;}
  .brand{font-size:18px;}
  .hero-inner{grid-template-columns:1fr;padding:40px;gap:32px;}
  .page-hero h1{font-size:32px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .section{padding:64px 0;}
  .cta-band{padding:70px 0;}
}

@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .page-hero{min-height:280px;border-radius:var(--radius);}
  .hero-inner{padding:32px 24px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .section-head h2{font-size:24px;}
  .item-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:24px;}
  .faq-acc .accordion-content{padding-right:24px;}
}

@media screen and (max-width:519px){
  .brand{font-size:16px;}
  .item-card{flex-direction:column;}
  .item-thumb{width:100%;height:auto;flex:none;aspect-ratio:16/9;}
  .item-meta a{margin-left:0;width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-float{left:12px;bottom:12px;}
  .footer-bottom{flex-direction:column;}
  .hero-points{flex-direction:column;gap:10px;}
}

/* roulang page: category2 */
:root{
  --brand:#5B2EDD;
  --brand-dark:#4A22B8;
  --brand-soft:rgba(91,46,221,.08);
  --accent:#FF6B35;
  --accent-dark:#EB5A24;
  --mint:#14C4A8;
  --mint-deep:#0E8E7A;
  --bg:#FBF9F6;
  --surface:#F3EFFA;
  --dark:#17121F;
  --text:#1E1A2B;
  --text-2:#5A5468;
  --text-3:#8B8598;
  --border:#E8E3F2;
  --white:#FFFFFF;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(30,26,43,.06);
  --shadow-2:0 10px 24px rgba(91,46,221,.14);
  --shadow-3:0 18px 40px rgba(30,26,43,.12);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--border);
  box-shadow:0 4px 18px rgba(30,26,43,.07);
}
.nav-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:76px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-bar{height:64px;}
.nav-left{display:flex;align-items:center;gap:2px;grid-column:1;}
.nav-right{display:flex;align-items:center;gap:10px;justify-content:flex-end;grid-column:3;}
.brand-logo{
  grid-column:2;
  justify-self:center;
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  font-size:20px;
  font-weight:800;
  letter-spacing:.4px;
  white-space:nowrap;
}
.brand-logo .brand-mark{color:var(--brand);}
.brand-logo .brand-text{color:var(--text);}
.brand-logo:hover .brand-mark{color:var(--accent);}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:20%;
  right:20%;
  bottom:5px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.nav-toggle{
  display:none;
  grid-column:3;
  justify-self:end;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border);
  background:var(--white);
  border-radius:12px;
  color:var(--text);
  font-size:18px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(91,46,221,.4);color:var(--brand);}

.mobile-drawer{
  position:fixed;
  left:0;
  right:0;
  top:76px;
  bottom:0;
  background:var(--bg);
  padding:20px 16px 40px;
  z-index:75;
  overflow-y:auto;
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 16px;
  border-radius:12px;
  font-size:17px;
  color:var(--text);
}
.mobile-drawer a.is-active{color:var(--brand);background:var(--surface);font-weight:600;}
.mobile-drawer .drawer-cta{
  margin-top:14px;
  justify-content:center;
  background:var(--accent);
  color:#fff;
  font-weight:600;
}
.mobile-drawer .drawer-cta:hover{background:var(--accent-dark);color:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:15px;border-radius:10px;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,107,53,.26);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,107,53,.3);}
.btn-accent:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(91,46,221,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:var(--white);color:var(--brand);border-color:rgba(91,46,221,.35);}
.btn-outline:hover{border-color:var(--brand);background:#F6F2FF;color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.6);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb .crumb-home{color:var(--text-3);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--brand);}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:52px 0 68px;
  min-height:320px;
  background:linear-gradient(135deg,rgba(91,46,221,.09),rgba(255,107,53,.06)),var(--bg);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.13;
}
.page-hero-texture{
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(30,26,43,.06) 1px,transparent 1px);
  background-size:18px 18px;
}
.page-hero .container{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(20,196,168,.13);
  color:var(--mint-deep);
  font-size:13px;
  font-weight:600;
}
.page-hero h1{
  font-size:40px;
  line-height:1.24;
  font-weight:800;
  letter-spacing:-.5px;
  margin:18px 0 16px;
  max-width:22em;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  margin-top:30px;
  list-style:none;
  font-size:15px;
  color:var(--text-2);
}
.hero-points li{display:flex;align-items:center;gap:8px;}
.hero-points i{color:var(--mint);font-size:15px;}

/* ============ 板块通用 ============ */
.section{padding:80px 0;}
.section-tight{padding:64px 0 80px;}
.section-alt{background:var(--surface);}
.section-head{max-width:780px;margin:0 auto 40px;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--mint-deep);
  background:rgba(20,196,168,.12);
  border-radius:999px;
  padding:5px 13px;
  margin-bottom:14px;
}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.3px;}
.section-head p{margin-top:12px;font-size:16px;line-height:1.8;color:var(--text-2);}

/* ============ 双栏布局 ============ */
.layout-two-col{align-items:flex-start;}
.toc-col .toc{position:sticky;top:96px;}
.toc{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--text-3);margin-bottom:12px;}
.toc ul{list-style:none;}
.toc li + li{margin-top:2px;}
.toc a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
  border-left:3px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.toc a:hover{background:var(--surface);color:var(--brand);}
.toc a.is-current{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--brand);}
.toc-help{
  margin-top:18px;
  padding:16px;
  border-radius:12px;
  background:var(--surface);
}
.toc-help b{display:block;font-size:14px;color:var(--text);margin-bottom:6px;}
.toc-help p{font-size:13px;line-height:1.7;color:var(--text-2);margin-bottom:10px;}
.toc-help a{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}

/* ============ 内容分段 ============ */
.doc-section{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:18px;
  padding:36px 36px 30px;
  box-shadow:var(--shadow-1);
  scroll-margin-top:110px;
  transition:box-shadow .25s ease;
}
.doc-section:hover{box-shadow:var(--shadow-2);}
.doc-section + .doc-section{margin-top:24px;}
.doc-section h2{
  position:relative;
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  padding-left:16px;
  margin-bottom:10px;
}
.doc-section h2::before{
  content:"";
  position:absolute;
  left:0;
  top:7px;
  bottom:7px;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.doc-section h3{font-size:19px;line-height:1.5;margin-bottom:6px;}
.doc-section > p{font-size:17px;line-height:1.85;color:var(--text-2);margin-bottom:16px;}
.doc-section p{font-size:16px;line-height:1.85;color:var(--text-2);}
.plain-list{list-style:none;margin:6px 0 4px;}
.plain-list li{
  position:relative;
  padding-left:26px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.plain-list li + li{margin-top:8px;}
.plain-list li::before{
  content:"";
  position:absolute;
  left:6px;
  top:12px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--mint);
}
.callout-quiet{
  margin:20px 0 4px;
  padding:18px 22px;
  border-left:4px solid var(--brand);
  background:rgba(91,46,221,.05);
  border-radius:0 12px 12px 0;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
}

.num-list{list-style:none;margin:10px 0 0;counter-reset:step;}
.num-list li{position:relative;padding-left:64px;min-height:44px;}
.num-list li + li{margin-top:22px;}
.num-list li::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;
  left:0;
  top:0;
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  border:2px solid rgba(91,46,221,.32);
  color:var(--brand);
  font-weight:700;
  font-size:15px;
  background:var(--white);
}
.num-list b{display:block;font-size:17px;color:var(--text);margin-bottom:4px;}
.num-list span{display:block;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ 场景分段 ============ */
.scenario{
  display:grid;
  grid-template-columns:230px minmax(0,1fr);
  gap:24px;
  align-items:center;
  padding:22px 0;
  border-top:1px solid var(--border);
}
.scenario:first-of-type{border-top:0;padding-top:10px;}
.scenario img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--border);
}
.scenario .tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:3px 10px;
  margin-bottom:8px;
}
.scenario ul{margin-top:10px;}

/* ============ 流程 ============ */
.flow{
  list-style:none;
  margin:14px 0 0 8px;
  padding-left:20px;
  border-left:2px dashed rgba(91,46,221,.25);
}
.flow li{position:relative;padding:0 0 22px 26px;}
.flow li:last-child{padding-bottom:4px;}
.flow li::before{
  content:"";
  position:absolute;
  left:-30px;
  top:6px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--white);
  border:3px solid var(--brand);
}
.flow b{display:block;font-size:17px;color:var(--text);margin-bottom:4px;}
.flow span{display:block;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ 对照表 ============ */
.table-wrap{
  margin-top:16px;
  overflow-x:auto;
  border:1px solid var(--border);
  border-radius:14px;
  background:var(--white);
}
table.compare{width:100%;border-collapse:collapse;min-width:560px;}
.compare th,.compare td{
  padding:14px 18px;
  text-align:left;
  font-size:15px;
  border-bottom:1px solid var(--border);
}
.compare th{
  background:var(--surface);
  color:var(--text);
  font-weight:700;
  font-size:14px;
  letter-spacing:.3px;
  white-space:nowrap;
}
.compare td{color:var(--text-2);line-height:1.7;}
.compare td:first-child{color:var(--text);font-weight:600;}
.compare tr:last-child td{border-bottom:none;}
.compare tbody tr:hover td{background:rgba(91,46,221,.035);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-accordion{background:transparent;border:0;margin:0;}
.faq-accordion .accordion-item{
  position:relative;
  border:1px solid var(--border);
  border-radius:14px;
  background:var(--white);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-accordion .accordion-item:hover{border-color:rgba(91,46,221,.3);}
.faq-accordion .accordion-item.is-active{
  box-shadow:var(--shadow-2);
  border-color:rgba(91,46,221,.3);
}
.faq-accordion .accordion-item.is-active::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
}
.faq-accordion .accordion-title{
  padding:20px 58px 20px 24px;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  background:transparent;
  border:0;
  position:relative;
}
.faq-accordion .accordion-title::before{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--brand);
  transition:transform .25s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  transform:translateY(-50%) rotate(180deg);
}
.faq-accordion .accordion-title:hover{color:var(--brand);}
.faq-accordion .accordion-content{
  padding:0 24px 22px;
  border:0;
  background:transparent;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.faq-accordion .accordion-content p{font-size:15px;line-height:1.85;color:var(--text-2);}

/* ============ CTA 带 ============ */
.cta-band{background:var(--dark);padding:96px 0;color:#fff;}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:36px;
  align-items:center;
}
.cta-band h2{color:#fff;font-size:32px;line-height:1.3;letter-spacing:-.3px;}
.cta-band p{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
  max-width:620px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-meta{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 30px;
  font-size:14px;
  color:rgba(255,255,255,.5);
}
.cta-meta span{display:inline-flex;align-items:center;gap:8px;}
.cta-meta i{color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.62);padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .fb-logo{
  font-size:20px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.3px;
}
.footer-brand p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.55);max-width:340px;}
.footer-anchors{margin-top:16px;}
.footer-anchors a{
  display:inline-block;
  margin:0 14px 8px 0;
  font-size:14px;
  color:var(--mint);
}
.footer-anchors a:hover{color:var(--accent);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-links{list-style:none;}
.footer-links li + li{margin-top:10px;}
.footer-links a{font-size:15px;color:rgba(255,255,255,.62);}
.footer-links a:hover{color:var(--accent);}
.footer-contact{list-style:none;}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:15px;
  margin-bottom:11px;
  color:rgba(255,255,255,.62);
}
.footer-contact i{color:var(--mint);}
.footer-qr{
  margin-top:16px;
  width:112px;
  height:112px;
  border-radius:12px;
  border:1px dashed rgba(255,255,255,.25);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:13px;
  line-height:1.6;
  color:rgba(255,255,255,.5);
}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  color:rgba(255,255,255,.45);
}

/* ============ 断点 ============ */
@media screen and (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-bar{grid-template-columns:1fr auto 1fr;}
  .brand-logo{grid-column:2;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0 64px;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:27px;}
  .page-hero h1{font-size:32px;}
  .doc-section{padding:28px 26px 24px;}
  .doc-section h2{font-size:23px;}
  .doc-section > p{font-size:16px;}
  .cta-band{padding:72px 0;}
  .cta-inner{grid-template-columns:minmax(0,1fr);}
  .cta-band h2{font-size:27px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .toc-col .toc{position:static;}
}

@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .page-hero{padding:34px 0 46px;min-height:0;}
  .page-hero h1{font-size:27px;margin:14px 0 12px;}
  .hero-sub{font-size:16px;}
  .hero-points{gap:10px 20px;font-size:14px;}
  .section{padding:52px 0;}
  .section-head h2{font-size:23px;}
  .section-head p{font-size:15px;}
  .doc-section{border-radius:14px;padding:24px 18px 20px;}
  .doc-section + .doc-section{margin-top:16px;}
  .doc-section h2{font-size:21px;padding-left:13px;}
  .doc-section h2::before{width:3px;}
  .scenario{grid-template-columns:minmax(0,1fr);gap:14px;}
  .scenario img{aspect-ratio:16/9;}
  .num-list li{padding-left:56px;}
  .num-list li::before{width:40px;height:40px;font-size:14px;}
  .faq-accordion .accordion-title{padding:17px 50px 17px 18px;font-size:16px;}
  .faq-accordion .accordion-title::before{right:18px;}
  .faq-accordion .accordion-content{padding:0 18px 18px;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{margin-top:38px;padding:18px 0;font-size:13px;}
}

@media screen and (max-width:519px){
  .brand-logo{font-size:17px;}
  .nav-bar{height:64px;}
  .mobile-drawer{top:64px;}
  .hero-badge{font-size:12px;}
  .page-hero h1{font-size:24px;}
  .hero-actions .btn{flex:1 1 100%;}
  .doc-section h2{font-size:19px;}
  .doc-section h3{font-size:17px;}
  .plain-list li,.doc-section p{font-size:15px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-brand p{max-width:none;}
  .compare th,.compare td{padding:12px 14px;font-size:14px;}
}