/* roulang page: index */
:root{
  --brand:#5B4BC4;
  --brand-dark:#4638A8;
  --brand-soft:#EDEAFB;
  --accent:#FF8A3D;
  --accent-soft:#FFF1E6;
  --mint:#12B48A;
  --mint-soft:#E6F7F1;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#2A2C33;
  --muted:#6B7280;
  --dark:#171325;
  --radius-card:16px;
  --radius-img:20px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(23,19,37,.04);
  --shadow-2:0 12px 30px -12px rgba(23,19,37,.14);
  --ease:.24s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-dark)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.topline{height:3px;background:linear-gradient(90deg,#5B4BC4,#7B63E8)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid #EDE9E1;box-shadow:0 4px 16px rgba(23,19,37,.05)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 32px;height:68px;display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0}
.logo:hover{color:var(--text)}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:.02em}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav{display:flex;align-items:center;gap:24px}
.nav a{position:relative;font-size:15px;color:#3A3D45;padding:22px 0;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav a:hover{color:var(--brand)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--brand);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{position:relative}
.search input{width:196px;height:38px;border-radius:999px;border:1px solid transparent;background:#F3F1EC;padding:0 40px 0 16px;font-size:14px;outline:none;transition:background var(--ease),box-shadow var(--ease),border-color var(--ease)}
.search input::placeholder{color:#9AA0A6}
.search input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 2px rgba(91,75,196,.18)}
.search svg{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:#9AA0A6;pointer-events:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;text-align:center;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--lg{height:52px;padding:0 30px;font-size:16px}
.btn--md{height:48px;padding:0 26px;font-size:15px}
.btn--primary{background:linear-gradient(135deg,#5B4BC4,#7B63E8);color:#fff;box-shadow:0 8px 20px -10px rgba(91,75,196,.7)}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(91,75,196,.8)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 12px -8px rgba(91,75,196,.7)}
.btn--ghost{background:#fff;color:var(--brand);border:1px solid #D8D2F0}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--line{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn--line:hover{border-color:var(--brand);color:var(--brand)}
.btn[disabled],.btn.is-disabled{background:#E8E4DC;color:#9AA0A6;box-shadow:none;pointer-events:none;border-color:transparent}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.burger span{display:block;width:18px;height:2px;background:#3A3D45;border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#3A3D45;border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:80;background:#fff;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:20px}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:#3A3D45}
.drawer nav{display:flex;flex-direction:column;gap:4px;flex:1}
.drawer nav a{font-size:18px;color:var(--text);padding:14px 4px;border-bottom:1px solid #F1EEE8}
.drawer .btn{margin-top:16px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:var(--bg)}
.hero::before{content:"";position:absolute;right:-140px;top:-80px;width:520px;height:420px;background:var(--brand-soft);transform:skewX(-14deg);border-radius:32px;z-index:0}
.hero::after{content:"";position:absolute;left:-40px;bottom:40px;width:180px;height:180px;background-image:radial-gradient(#D9D3F5 2px,transparent 2px);background-size:16px 16px;opacity:.9;z-index:0}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1}
.badge--brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge--accent{background:var(--accent-soft);color:#B4531A}
.badge--mint{background:var(--mint-soft);color:#0A7A5D}
.badge--gray{background:#F2F0EC;color:#5C6069}
.hero .badge{margin-bottom:18px}
.hero h1{font-size:clamp(34px,4.4vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.hero-lead{font-size:18px;color:#4B4F58;max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px}
.trust{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.trust-item{display:flex;flex-direction:column;gap:2px}
.trust-item strong{font-size:22px;font-weight:800;color:var(--brand-dark);letter-spacing:-.01em}
.trust-item span{font-size:13px;color:var(--muted)}
.trust-divider{width:1px;height:34px;background:var(--line)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-2)}
.hero-float{position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;box-shadow:0 14px 30px -14px rgba(23,19,37,.24);min-width:210px}
.hero-float strong{display:block;font-size:14px;font-weight:700;margin-bottom:2px}
.hero-float span{font-size:12.5px;color:var(--muted)}
.hero-float .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:6px;vertical-align:middle}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--muted);max-width:680px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more span{transition:transform var(--ease)}
.link-more:hover span{transform:translateX(3px)}

/* ---------- value list ---------- */
.value-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden}
.value-row{display:grid;grid-template-columns:150px 1fr;gap:32px;padding:34px 36px;border-bottom:1px solid var(--line);align-items:start;transition:background var(--ease)}
.value-row:last-child{border-bottom:0}
.value-row:hover{background:#FCFBF9}
.value-num{font-size:56px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(91,75,196,.42);letter-spacing:-.02em;font-family:Inter,-apple-system,sans-serif}
.value-row h3{font-size:21px;font-weight:600;margin-bottom:8px}
.value-row p{color:var(--muted);font-size:15.5px}
.value-row .tagline{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

/* ---------- split showcase ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:72px}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1)}
.split h3{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin-bottom:14px;letter-spacing:-.01em}
.split p{color:#4B4F58;margin-bottom:18px}
.tag-row{display:flex;gap:8px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#4B4F58}
.tag:hover{border-color:rgba(91,75,196,.42);color:var(--brand)}
.split-list{margin-top:6px;display:grid;gap:10px}
.split-list li{position:relative;padding-left:20px;font-size:15px;color:#4B4F58}
.split-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--brand-soft);border:2px solid var(--brand)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.news-card:hover{transform:translateY(-3px);border-color:rgba(91,75,196,.3);box-shadow:var(--shadow-2)}
.news-card__link{display:flex;flex-direction:column;flex:1;color:inherit}
.news-card__link:hover{color:inherit}
.news-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-card__body{padding:20px 22px 16px;flex:1}
.news-card__body .badge{margin-bottom:12px}
.news-card__title{font-size:17px;font-weight:700;line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__excerpt{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 22px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.news-card__more{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:5px}
.news-card__more span{transition:transform var(--ease)}
.news-card__more:hover span{transform:translateX(3px)}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:48px 24px;text-align:center}
.empty-state .empty-mark{width:96px;height:96px;margin:0 auto 16px;border-radius:24px;background:#F5F3EF;display:grid;place-items:center;color:#B4B8BF;font-size:30px}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:16px}

/* ---------- social proof ---------- */
.proof{background:var(--dark);color:#fff;padding:88px 0}
.proof .section-head h2{color:#fff}
.proof .section-head p{color:rgba(255,255,255,.66)}
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px}
.proof-stat{border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-card);padding:24px}
.proof-stat strong{display:block;font-size:34px;font-weight:800;color:var(--accent);letter-spacing:-.02em;line-height:1.2}
.proof-stat span{font-size:14px;color:rgba(255,255,255,.7)}
.reviews{display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
.reviews::-webkit-scrollbar{height:6px}
.reviews::-webkit-scrollbar-thumb{background:rgba(255,255,255,.22);border-radius:999px}
.review{flex:0 0 300px;scroll-snap-align:start;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-card);padding:22px}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;flex-shrink:0}
.review-head strong{display:block;font-size:14.5px}
.review-head em{font-style:normal;font-size:12.5px;color:rgba(255,255,255,.6)}
.review p{font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.8}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-top:10px}

/* ---------- faq ---------- */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;position:relative;padding:22px 60px 22px 26px;font-size:17px;font-weight:600;transition:background var(--ease),color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:26px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--brand);transition:transform var(--ease);line-height:1}
.faq-item summary::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:transparent;transition:background var(--ease)}
.faq-item summary:hover{color:var(--brand);background:#FCFBF9}
.faq-item[open] summary{color:var(--brand-dark);background:#FCFBF9}
.faq-item[open] summary::before{background:var(--brand)}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-body{padding:0 60px 24px 26px;font-size:15px;line-height:1.8;color:#4B4F58}

/* ---------- cta ---------- */
.cta-band{background:#fff;border:1px solid var(--line);border-radius:24px;padding:52px;display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:center;box-shadow:var(--shadow-1);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;border:22px solid var(--brand-soft)}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;margin-bottom:12px;letter-spacing:-.01em}
.cta-band p{color:var(--muted);position:relative;z-index:1}
.cta-actions{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff}
.footer-brand .logo-mark{background:var(--brand)}
.footer-brand .logo-text{font-size:17px;font-weight:800}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- sticky cta ---------- */
.float-cta{position:fixed;right:28px;bottom:28px;z-index:70;display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 26px;border-radius:999px;background:linear-gradient(135deg,#5B4BC4,#7B63E8);color:#fff;font-weight:600;font-size:15px;box-shadow:0 16px 30px -12px rgba(91,75,196,.75)}
.float-cta:hover{color:#fff;transform:translateY(-2px)}
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;padding:0 16px calc(env(safe-area-inset-bottom,0px));align-items:center;justify-content:space-between;gap:12px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);box-shadow:0 -6px 20px rgba(23,19,37,.1)}
.mobile-bar span{font-size:14px;color:var(--text);font-weight:600}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .header-inner{padding:0 24px;gap:16px;height:64px}
  .nav{gap:16px}
  .nav a{font-size:14.5px}
  .search input{width:150px}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:6fr 6fr;gap:32px}
  .section{padding:64px 0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .proof-stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .float-cta{right:20px;bottom:20px}
}
@media (max-width:768px){
  .nav,.search,.header-actions .btn--primary{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .header-inner{height:56px}
  .hero::before,.hero::after{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-cta .btn{width:100%}
  .hero-float{position:static;margin-top:16px;min-width:0}
  .trust{gap:16px}
  .value-row{grid-template-columns:1fr;gap:12px;padding:26px 22px}
  .value-num{font-size:42px}
  .split{grid-template-columns:1fr;gap:28px}
  .split + .split{margin-top:48px}
  .split--reverse .split-media{order:2}
  .news-grid{grid-template-columns:1fr}
  .proof{padding:64px 0}
  .proof-stats{grid-template-columns:1fr;gap:14px}
  .cta-band{padding:32px 24px;border-radius:18px}
  .site-footer{padding-bottom:96px}
  .float-cta{display:none}
  .mobile-bar{display:flex}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero h1{font-size:30px}
  .hero-lead{font-size:16px}
  .section-head h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .faq-item summary{padding:18px 48px 18px 20px;font-size:16px}
  .faq-body{padding:0 48px 20px 20px}
  .value-row{padding:22px 18px}
}

/* roulang page: category1 */
:root{
  --primary:#5B4BC4;
  --primary-dark:#4638A8;
  --primary-soft:#EDEAFB;
  --accent:#FF8A3D;
  --accent-soft:#FFF1E6;
  --mint:#12B48A;
  --mint-soft:#E4F7F1;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --line-soft:#EDE9E1;
  --ink:#2A2C33;
  --muted:#6B7280;
  --dark:#171325;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(23,19,37,.04);
  --shadow-2:0 12px 30px -12px rgba(23,19,37,.14);
  --container:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  padding:0 24px;height:48px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:linear-gradient(135deg,#5B4BC4,#7B63E8);color:#fff;box-shadow:0 8px 20px -10px rgba(91,75,196,.7);}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -10px rgba(91,75,196,.75);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 6px 14px -10px rgba(91,75,196,.7);}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);}
.btn--solid{background:var(--primary);color:#fff;}
.btn--solid:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn--sm{height:40px;font-size:14px;padding:0 18px;}
.btn--lg{height:52px;font-size:16px;padding:0 30px;}
.btn[disabled],.btn.is-disabled{background:#E8E4DC;color:#9AA0A6;border-color:transparent;cursor:not-allowed;box-shadow:none;transform:none;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line-soft);
  box-shadow:0 4px 16px rgba(23,19,37,.05);
}
.site-header::before{content:"";display:block;height:3px;background:linear-gradient(90deg,#5B4BC4,#7B63E8);}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 32px;
  height:68px;display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:0;
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-0.01em;}
.nav{display:flex;align-items:center;gap:26px;margin:0 auto;}
.nav a{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;font-weight:500;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav a:hover{color:var(--primary);}
.nav a:hover::after{transform:scaleX(1);}
.nav a.is-active{color:var(--primary);font-weight:700;}
.nav a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;border-radius:999px;background:#F3F1EC;
  border:1px solid transparent;color:var(--muted);
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search input{border:0;background:transparent;outline:none;width:170px;font-size:14px;color:var(--ink);}
.search input::placeholder{color:#9AA0A6;}
.search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 2px rgba(91,75,196,.18);}
.burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.burger span{top:19px;}
.burger span::before{content:"";top:-6px;}
.burger span::after{content:"";top:6px;}
.site-header.is-open .burger span{background:transparent;}
.site-header.is-open .burger span::before{transform:translateX(0) rotate(45deg);top:0;}
.site-header.is-open .burger span::after{transform:translateX(0) rotate(-45deg);top:0;}

/* 内页头 */
.page-head{
  position:relative;overflow:hidden;
  background:var(--primary-soft);
  border-bottom:1px solid var(--line);
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.14;mix-blend-mode:luminosity;pointer-events:none;
}
.page-head .dots{
  position:absolute;right:40px;bottom:-24px;width:180px;height:120px;opacity:.5;
  background-image:radial-gradient(var(--primary) 1.4px,transparent 1.4px);
  background-size:16px 16px;pointer-events:none;
}
.page-head-inner{position:relative;z-index:2;padding:52px 0 56px;max-width:760px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumbs a{color:var(--primary);}
.crumbs span{color:#C3BFB6;}
.page-head h1{
  font-size:clamp(30px,3.8vw,46px);line-height:1.18;font-weight:800;letter-spacing:-0.01em;
}
.page-head p{color:#4B4E58;font-size:16px;margin-top:16px;max-width:640px;}
.page-head .head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;white-space:nowrap;
}
.tag--primary{background:var(--primary-soft);color:var(--primary-dark);}
.tag--accent{background:var(--accent-soft);color:#C25A11;}
.tag--mint{background:var(--mint-soft);color:#0B8163;}
.tag--neutral{background:#F3F1EC;color:#5A5F6B;}

/* 板块 */
.section{padding:var(--sec) 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--dark);color:rgba(255,255,255,.82);}
.section--dark h2,.section--dark h3{color:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(91,75,196,.35);color:var(--primary-dark);font-size:13px;font-weight:600;
  background:rgba(255,255,255,.7);margin-bottom:16px;
}
.section-head h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:700;}
.section-head p{color:var(--muted);margin-top:14px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.link-all{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.link-all::after{content:"→";transition:transform .2s ease;}
.link-all:hover::after{transform:translateX(3px);}

/* 核验时间轴 */
.timeline{border-top:1px solid var(--line);}
.tl-item{
  display:grid;grid-template-columns:132px 1fr;gap:32px;
  padding:32px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.tl-item:hover{background:rgba(255,255,255,.7);}
.tl-num{
  font-size:44px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px rgba(91,75,196,.55);letter-spacing:-0.02em;
  font-variant-numeric:tabular-nums;
}
.tl-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.tl-body p{color:var(--muted);font-size:15px;}
.tl-body .tag{margin-top:14px;}
.tl-meta{margin-top:12px;font-size:13px;color:#9AA0A6;}

/* 图文交错 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:72px;}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-2);
}
.split-media .float-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-2);max-width:230px;
}
.split-media .float-card strong{display:block;font-size:22px;color:var(--accent);line-height:1.2;font-weight:800;}
.split-media .float-card span{font-size:13px;color:var(--muted);}
.split-text h3{font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700;margin-bottom:16px;}
.split-text p{color:var(--muted);margin-bottom:14px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}

/* 判断依据列表 */
.fact-wrap{display:grid;grid-template-columns:260px 1fr;gap:48px;align-items:start;}
.fact-aside{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.fact-aside h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.fact-aside p{font-size:14px;color:var(--muted);}
.fact-list{border-top:1px solid var(--line);}
.fact-list div{
  display:grid;grid-template-columns:180px 1fr;gap:24px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.fact-list dt{font-weight:600;font-size:15px;color:var(--ink);}
.fact-list dd{margin:0;color:var(--muted);font-size:15px;}
.fact-list dd .tag{margin-right:8px;vertical-align:1px;}

/* 信息说明卡两列 */
.info-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.info-card:hover{border-color:rgba(91,75,196,.3);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.info-card h3{font-size:19px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.info-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.info-card ul li{
  position:relative;padding-left:20px;font-size:15px;color:var(--muted);margin-bottom:10px;
}
.info-card ul li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:2px;border-radius:2px;background:var(--primary);
}

/* FAQ */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow .24s ease;}
.faq-item:last-child{border-bottom:0;}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--primary);background:#FDFCFF;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 26px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--primary);font-weight:400;
  transition:transform .24s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-a{padding:0 26px 22px;font-size:15px;line-height:1.8;color:var(--muted);}

/* CTA + 表单 */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:48px;box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:clamp(24px,2.6vw,30px);line-height:1.3;font-weight:700;margin-bottom:14px;}
.cta-band p{color:var(--muted);font-size:15px;}
.cta-band .cta-points{margin-top:22px;}
.cta-band .cta-points li{font-size:15px;color:var(--muted);padding-left:20px;position:relative;margin-bottom:10px;}
.cta-band .cta-points li::before{content:"✓";position:absolute;left:0;color:var(--mint);font-weight:700;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:#4B4E58;margin-bottom:8px;}
.field input,.field textarea,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:#fff;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,196,.14);
}
.field .hint{font-size:13px;color:#9AA0A6;margin-top:8px;}
.field.is-error input,.field.is-error textarea{border-color:#D64545;box-shadow:0 0 0 3px rgba(214,69,69,.12);}
.field .err{font-size:13px;color:#D64545;margin-top:8px;display:none;}
.field.is-error .err{display:block;}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px;}
.form-foot span{font-size:13px;color:var(--muted);}

/* 悬浮按钮 / 底部固定条 */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:70;display:inline-flex;
  box-shadow:0 16px 32px -14px rgba(91,75,196,.8);
}
.mobile-bar{display:none;}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:var(--primary);}
.footer-brand .logo-text{color:#fff;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

@media (max-width:1024px){
  :root{--sec:72px;}
  .container{padding:0 24px;}
  .header-inner{padding:0 24px;gap:18px;}
  .nav{gap:18px;}
  .search input{width:120px;}
  .split{gap:36px;}
  .fact-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .float-cta{right:20px;bottom:20px;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  .header-inner{height:56px;padding:0 20px;gap:12px;}
  .container{padding:0 20px;}
  .nav{
    position:fixed;top:0;left:0;right:0;height:100vh;background:#fff;
    flex-direction:column;align-items:flex-start;gap:4px;
    padding:88px 24px 24px;margin:0;
    transform:translateX(100%);transition:transform .26s ease;z-index:90;
  }
  .nav a{font-size:18px;font-weight:600;width:100%;padding:14px 0;border-bottom:1px solid var(--line-soft);}
  .nav a::after{display:none;}
  .site-header.is-open .nav{transform:translateX(0);}
  .search{display:none;}
  .burger{display:block;}
  .header-actions{margin-left:auto;}
  .page-head-inner{padding:36px 0 40px;}
  .page-head .dots{display:none;}
  .tl-item{grid-template-columns:1fr;gap:12px;padding:26px 0;}
  .tl-num{font-size:34px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split + .split{margin-top:52px;}
  .split-media .float-card{position:static;margin-top:16px;max-width:none;}
  .fact-list div{grid-template-columns:1fr;gap:8px;}
  .info-cards{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:12px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .site-footer{padding-bottom:92px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:75;
    height:60px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
    border-top:1px solid var(--line);box-shadow:0 -8px 20px rgba(23,19,37,.08);
  }
  .mobile-bar span{font-size:14px;color:var(--ink);font-weight:600;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .page-head h1{font-size:28px;}
  .section-head h2{font-size:25px;}
  .faq-item summary{padding:18px 18px;font-size:16px;}
  .faq-item .faq-a{padding:0 18px 20px;}
  .cta-band{padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .tl-num{font-size:30px;}
  .btn--lg{height:50px;font-size:15px;}
}

/* roulang page: article */
:root{
  --brand:#5B4BC4;
  --brand-dark:#4638A8;
  --brand-light:#EDEAFB;
  --accent:#FF8A3D;
  --mint:#12B48A;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --line-soft:#EDE9E1;
  --ink:#2A2C33;
  --muted:#6B7280;
  --dark:#171325;
  --danger:#D64545;
  --grad:linear-gradient(90deg,#5B4BC4 0%,#7B63E8 100%);
  --r-card:16px;
  --r-img:20px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,19,37,.04);
  --sh-2:0 12px 30px -12px rgba(23,19,37,.14);
  --sh-nav:0 4px 16px rgba(23,19,37,.05);
  --nav-h:68px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--ink);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ 顶部细条 ============ */
.topline{height:3px;background:var(--grad);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line-soft);
  box-shadow:var(--sh-nav);
}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 32px;
  height:var(--nav-h);
  display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--brand);
  color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:-.02em;box-shadow:0 4px 10px -4px rgba(91,75,196,.6);
}
.logo-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.logo:hover .logo-text{color:var(--brand);}
.nav{display:flex;align-items:center;gap:26px;margin-right:auto;}
.nav a{
  position:relative;font-size:15px;color:#4A4E57;padding:6px 0;font-weight:500;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav a:hover{color:var(--brand);}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1);}
.nav a.is-active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search{
  position:relative;display:flex;align-items:center;
  height:38px;border-radius:var(--r-pill);background:#F3F1EC;
  padding:0 12px 0 14px;transition:background .2s ease,box-shadow .2s ease;
}
.search input{
  border:0;background:transparent;outline:none;width:168px;height:100%;font-size:14px;
}
.search input::placeholder{color:#9AA0A6;}
.search svg{color:#8C8F98;flex:0 0 auto;}
.search:focus-within{background:#fff;box-shadow:0 0 0 2px var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;
  padding:0 22px;height:46px;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(91,75,196,.85);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(91,75,196,.9);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 10px -8px rgba(91,75,196,.8);}
.btn--ghost{background:#fff;color:var(--brand);border-color:rgba(91,75,196,.35);}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);}
.btn--soft{background:var(--brand-light);color:var(--brand-dark);}
.btn--soft:hover{background:#E2DDF8;color:var(--brand-dark);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--lg{height:52px;padding:0 30px;font-size:16px;}
.btn[disabled],.btn.is-disabled{background:#E8E4DC;color:#9AA0A6;pointer-events:none;box-shadow:none;}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;position:relative;
}
.burger span,.burger::before,.burger::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:var(--ink);transform:translateX(-50%);transition:transform .24s ease,opacity .2s ease,top .24s ease;
}
.burger::before{top:15px;}
.burger span{top:21px;}
.burger::after{top:27px;}
body.nav-open .burger::before{top:21px;transform:translateX(-50%) rotate(45deg);}
body.nav-open .burger::after{top:21px;transform:translateX(-50%) rotate(-45deg);}
body.nav-open .burger span{opacity:0;}

/* ============ 内页头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  background:var(--bg);
  padding:38px 0 4px;
}
.article-hero::before{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(91,75,196,.18);
}
.article-hero::after{
  content:"";position:absolute;right:70px;top:140px;width:130px;height:130px;border-radius:50%;
  background:var(--brand-light);z-index:0;
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--brand);}
.breadcrumb a:hover{color:var(--brand-dark);}
.breadcrumb .sep{color:#C4C0B6;}
.breadcrumb .current{color:var(--muted);}
.channel-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-dark);
  font-size:13px;font-weight:600;letter-spacing:.01em;
}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;letter-spacing:-.01em;line-height:1.22;
  margin:18px 0 16px;max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--muted);
  padding-bottom:26px;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFCABF;}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;font-size:13px;color:#4A4E57;
}
.hero-strip{
  height:1px;background:linear-gradient(90deg,rgba(91,75,196,.35),rgba(91,75,196,0));
}

/* ============ 正文布局 ============ */
.article-wrap{padding:52px 0 84px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 240px;
  gap:52px;align-items:start;
}
.article-main{min-width:0;max-width:840px;}
.article-side{position:sticky;top:calc(var(--nav-h) + 24px);}

.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card + .side-card{margin-top:20px;}
.side-card h4{
  font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--muted);
  text-transform:none;margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:#4A4E57;
  padding:7px 10px;border-radius:10px;border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--brand-light);color:var(--brand-dark);border-left-color:var(--brand);}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:14px;color:#4A4E57;padding:10px 12px;border-radius:12px;border:1px solid var(--line);
  background:#fff;transition:border-color .2s ease,transform .2s ease,color .2s ease,box-shadow .2s ease;
}
.side-links a:hover{border-color:rgba(91,75,196,.4);color:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sh-2);}
.side-links .arrow{color:var(--brand);transition:transform .2s ease;}
.side-links a:hover .arrow{transform:translateX(3px);}

/* ============ 正文排版 ============ */
.post-content{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 44px;box-shadow:var(--sh-1);
  font-size:16px;line-height:1.9;color:#31343C;
}
.post-content > *:first-child{margin-top:0;}
.post-content p{margin:0 0 1.2em;}
.post-content h2{
  font-size:clamp(21px,2.2vw,27px);font-weight:700;line-height:1.4;
  margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--brand);
  letter-spacing:-.005em;
}
.post-content h3{font-size:19px;font-weight:600;margin:1.5em 0 .6em;}
.post-content h4{font-size:17px;font-weight:600;margin:1.3em 0 .5em;}
.post-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.post-content a:hover{color:var(--brand-dark);}
.post-content ul,.post-content ol{padding-left:1.5em;margin:0 0 1.2em;}
.post-content ul li{list-style:disc;}
.post-content ol li{list-style:decimal;}
.post-content li{margin:.5em 0;line-height:1.9;}
.post-content img{border-radius:14px;margin:1.4em 0;height:auto;}
.post-content figure{margin:1.6em 0;}
.post-content figcaption,.post-content .caption{
  font-size:13px;color:var(--muted);text-align:center;margin-top:8px;line-height:1.7;
}
.post-content blockquote{
  margin:1.4em 0;padding:16px 22px;background:var(--brand-light);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:#3D3A55;
  font-size:15px;
}
.post-content blockquote p:last-child{margin-bottom:0;}
.post-content code{
  background:#F3F1EC;border-radius:6px;padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#4638A8;
}
.post-content pre{
  background:var(--dark);color:#EDEAFB;border-radius:14px;padding:18px 20px;overflow:auto;
  font-size:14px;line-height:1.7;margin:1.4em 0;
}
.post-content pre code{background:transparent;color:inherit;padding:0;}
.post-content table{
  width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.post-content th,.post-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.post-content th{background:#F7F5F1;font-weight:600;}
.post-content hr{border:0;height:1px;background:var(--line);margin:2.2em 0;}

/* ============ 空态 ============ */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 28px;text-align:center;box-shadow:var(--sh-1);
}
.empty-mark{
  width:96px;height:96px;margin:0 auto 18px;border-radius:50%;
  background:var(--brand-light);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:30px;font-weight:800;
}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px;}

/* ============ 文末标签与返回 ============ */
.post-foot{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .tag-label{font-size:13px;color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:var(--r-pill);
  background:#F3F1EC;color:#4A4E57;font-size:13px;transition:background .2s ease,color .2s ease;
}
.tag:hover{background:var(--brand-light);color:var(--brand-dark);}
.tag--brand{background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.tag--accent{background:#FFF1E6;color:#B85C15;font-weight:600;}
.tag--mint{background:#E4F7F1;color:#0B7A5D;font-weight:600;}
.tag--gray{background:#F3F1EC;color:#4A4E57;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);
}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 相关推荐 ============ */
.related{padding:0 0 84px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.01em;}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(91,75,196,.3);box-shadow:var(--sh-2);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFECE7;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:20px 22px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--brand);}
.card-body p{
  font-size:14px;color:var(--muted);line-height:1.75;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.card-foot .link-arrow{font-size:13px;}

/* ============ 转化区 ============ */
.cta-band{
  background:var(--dark);border-radius:24px;padding:52px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;margin-bottom:84px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;letter-spacing:-.01em;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:640px;line-height:1.85;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
.cta-band .btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.6);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:68px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:var(--brand);}
.footer-brand .logo-text{color:#fff;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:360px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 底部固定转化条 ============ */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  box-shadow:0 -6px 20px rgba(23,19,37,.1);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
}
.mobile-cta span{font-size:13px;color:var(--ink);font-weight:500;}
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:65;
  display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 30px -12px rgba(91,75,196,.9);
  transition:transform .2s ease,background .2s ease;
}
.float-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .header-inner{padding:0 24px;gap:20px;}
  .container{padding:0 24px;}
  .nav{gap:18px;}
  .search input{width:132px;}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-side{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:span 1;}
  .post-content{padding:34px 30px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:900px){
  .nav{
    position:fixed;left:0;right:0;top:var(--nav-h);bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:20px 24px 28px;margin:0;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .24s ease,transform .24s ease;
    overflow-y:auto;
  }
  .nav a{font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line);}
  .nav a::after{display:none;}
  body.nav-open .nav{transform:translateY(0);opacity:1;pointer-events:auto;}
  body.nav-open{overflow:hidden;}
  .burger{display:block;}
  .search{display:none;}
  .header-inner{gap:14px;}
  .nav .nav-cta{display:inline-flex;margin-top:20px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  :root{--nav-h:56px;}
  .container{padding:0 20px;}
  .header-inner{padding:0 20px;}
  .logo-text{font-size:16px;}
  .article-hero{padding:26px 0 0;}
  .article-hero::before,.article-hero::after{display:none;}
  .article-wrap{padding:34px 0 60px;}
  .post-content{padding:26px 20px;font-size:15.5px;border-radius:14px;}
  .post-content h2{margin-top:1.7em;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .related{padding-bottom:60px;}
  .cta-band{padding:36px 24px;border-radius:20px;margin-bottom:110px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:32px;}
  .footer-grid > div:first-child{grid-column:span 2;}
  .site-footer{padding-top:48px;}
  .mobile-cta{display:flex;}
  .float-cta{display:none;}
  .post-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .article-title{font-size:25px;line-height:1.3;}
  .breadcrumb{font-size:12px;}
  .card-body{padding:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid > div:first-child{grid-column:span 1;}
  .btn--lg{height:48px;padding:0 22px;font-size:15px;}
  .empty-state{padding:42px 20px;}
}

/* roulang page: category2 */
:root{
  --brand:#5B4BC4;
  --brand-dark:#4638A8;
  --brand-light:#EDEAFB;
  --accent:#FF8A3D;
  --accent-light:#FFF0E5;
  --mint:#12B48A;
  --mint-light:#E4F7F1;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --ink:#2A2C33;
  --muted:#6B7280;
  --dark:#171325;
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,19,37,.04);
  --sh-2:0 12px 30px -12px rgba(23,19,37,.14);
  --maxw:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  display:block;
  height:3px;
  background:linear-gradient(90deg,#5B4BC4,#7B63E8);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--white{background:#fff;}
.section--dark{background:var(--dark);color:rgba(255,255,255,.82);}
.section--dark h2,.section--dark h3{color:#fff;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:relative;
  z-index:60;
  background:#fff;
  border-bottom:1px solid #EDE9E1;
  box-shadow:0 4px 16px rgba(23,19,37,.05);
}
.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;letter-spacing:0;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;white-space:nowrap;}
.nav{display:flex;align-items:center;gap:24px;margin-left:8px;}
.nav a{
  position:relative;
  font-size:15px;
  color:var(--ink);
  padding:6px 0;
  white-space:nowrap;
}
.nav a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;border-radius:2px;
  background:var(--brand);
  transition:width .24s ease;
}
.nav a:hover{color:var(--brand);}
.nav a:hover::after{width:100%;}
.nav a.is-active{color:var(--brand);font-weight:600;}
.nav a.is-active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;
  background:#F3F1EC;
  border-radius:var(--r-pill);
  color:var(--muted);
  transition:background .22s ease,box-shadow .22s ease;
}
.search input{
  border:0;background:transparent;outline:none;
  width:168px;height:100%;
  font-size:14px;color:var(--ink);
}
.search input::placeholder{color:#9AA0A6;}
.search:focus-within{background:#fff;box-shadow:0 0 0 2px var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  padding:0 24px;height:48px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;
}
.btn--primary{
  background:linear-gradient(135deg,#5B4BC4,#7B63E8);
  color:#fff;
  box-shadow:0 8px 20px -10px rgba(91,75,196,.7);
}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(91,75,196,.75);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{
  background:#fff;color:var(--brand);
  border-color:rgba(91,75,196,.35);
}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{height:40px;padding:0 20px;font-size:14px;}
.btn--lg{height:52px;padding:0 30px;}
.btn--block{width:100%;}
.btn[disabled]{background:#E8E4DC;color:#9AA0A6;box-shadow:none;cursor:not-allowed;transform:none;border-color:#E8E4DC;}
.burger{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  position:relative;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.burger span,
.burger span::before,
.burger span::after{
  content:"";
  display:block;
  width:18px;height:2px;border-radius:2px;
  background:var(--ink);
  transition:transform .24s ease,opacity .24s ease;
}
.burger span::before{transform:translateY(-6px);}
.burger span::after{transform:translateY(6px);}
.burger.is-open span{background:transparent;}
.burger.is-open span::before{transform:rotate(45deg) translateY(1px);}
.burger.is-open span::after{transform:rotate(-45deg) translateY(-1px);}

/* ---------- 内页头 ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  padding:64px 0 56px;
}
.page-head::before{
  content:"";
  position:absolute;inset:0;
  background:rgba(250,248,245,.93);
}
.page-head::after{
  content:"";
  position:absolute;
  right:-40px;top:-30px;
  width:230px;height:230px;
  background-image:radial-gradient(#5B4BC4 1.6px,transparent 1.7px);
  background-size:16px 16px;
  opacity:.16;
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumbs a{color:var(--brand);}
.crumbs span.sep{color:#C4C0B8;}
.page-head h1{
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.2;
  font-weight:800;
  max-width:760px;
}
.head-note{
  margin-top:16px;
  max-width:640px;
  font-size:16px;
  color:var(--muted);
  line-height:1.8;
}
.head-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:var(--brand-light);color:var(--brand-dark);
}
.tag--accent{background:var(--accent-light);color:#B8531B;}
.tag--mint{background:var(--mint-light);color:#0B7D60;}
.tag--gray{background:#F1EFEA;color:#5C6169;}

/* ---------- 通用板块标题 ---------- */
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section-head h2{font-size:clamp(24px,2.8vw,34px);line-height:1.3;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}

/* ---------- 速览条目 ---------- */
.intro-list{display:grid;gap:0;border-top:1px solid var(--line);}
.intro-item{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:28px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.num-outline{
  font-size:44px;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(91,75,196,.5);
  letter-spacing:-0.02em;
  font-variant-numeric:tabular-nums;
}
.intro-item h3{font-size:20px;margin-bottom:8px;}
.intro-item p{color:var(--muted);font-size:15.5px;line-height:1.8;}

/* ---------- 四步流程 ---------- */
.steps{display:grid;gap:44px;}
.step{
  display:grid;
  grid-template-columns:72px 1fr;
  gap:24px;
}
.step-num{
  position:relative;
  display:flex;
  justify-content:center;
}
.step-num i{
  width:44px;height:44px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-style:normal;
  font-size:15px;font-weight:700;
  box-shadow:0 10px 22px -12px rgba(91,75,196,.9);
}
.step-num::before{
  content:"";
  position:absolute;
  top:52px;bottom:-44px;
  width:0;
  border-left:2px dashed rgba(91,75,196,.28);
}
.steps .step:last-child .step-num::before{display:none;}
.step-inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:box-shadow .24s ease,border-color .24s ease,transform .24s ease;
}
.step-inner:hover{border-color:rgba(91,75,196,.3);box-shadow:var(--sh-2);transform:translateY(-3px);}
.step:nth-child(even) .step-figure{order:2;}
.step-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-lg);
}
.step-body h3{font-size:22px;margin-bottom:10px;}
.step-body .step-kicker{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;margin-bottom:8px;display:block;}
.step-body p{color:var(--muted);font-size:15.5px;}
.step-points{margin-top:16px;display:grid;gap:8px;}
.step-points li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--ink);
}
.step-points li::before{
  content:"";
  position:absolute;left:2px;top:12px;
  width:7px;height:7px;border-radius:50%;
  background:var(--mint);
}

/* ---------- 卡片网格 ---------- */
.cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.card:hover{border-color:rgba(91,75,196,.3);box-shadow:var(--sh-2);transform:translateY(-3px);}
.card h3{font-size:18px;margin:14px 0 10px;}
.card p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.card-icon{
  width:40px;height:40px;border-radius:12px;
  background:var(--brand-light);
  color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;
}
.card-icon.alt{background:var(--accent-light);color:#B8531B;}

/* ---------- 场景标签与建议 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.suggest{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.suggest-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  border-top:3px solid var(--brand);
}
.suggest-item:nth-child(2){border-top-color:var(--accent);}
.suggest-item:nth-child(3){border-top-color:var(--mint);}
.suggest-item h3{font-size:17px;margin-bottom:10px;}
.suggest-item p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.media-block{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:40px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
}
.media-block img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);}
.media-block h3{font-size:22px;margin-bottom:12px;}
.media-block p{color:var(--muted);font-size:15.5px;}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:920px;}
.faq-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:hover{border-color:rgba(91,75,196,.28);}
.faq-item[open]{border-color:rgba(91,75,196,.38);box-shadow:var(--sh-1);}
.faq-item[open]::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:3px;background:var(--brand);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.plus{
  position:relative;
  flex:0 0 auto;
  width:22px;height:22px;
  transition:transform .24s ease;
}
.plus::before,.plus::after{
  content:"";
  position:absolute;left:50%;top:50%;
  background:var(--brand);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.plus::before{width:14px;height:2px;}
.plus::after{width:2px;height:14px;}
.faq-item[open] .plus{transform:rotate(45deg);}
.faq-a{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  border-top:1px solid #F1EFEA;
  padding-top:16px;
  margin:0 20px 20px;
}

/* ---------- 表单 ---------- */
.form-wrap{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:40px;
  align-items:start;
}
.form-side h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:16px;}
.form-side p{color:var(--muted);font-size:15.5px;}
.form-side ul{margin-top:22px;display:grid;gap:12px;}
.form-side li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--ink);
}
.form-side li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:12px;height:12px;border-radius:50%;
  background:var(--brand-light);
  border:2px solid var(--brand);
}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-2);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  padding:0 14px;
  height:46px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(91,75,196,.14);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-tip{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.7;}
.form-msg{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:var(--r-input);
  font-size:14px;
  background:var(--mint-light);
  border:1px solid rgba(18,180,138,.4);
  color:#0B7D60;
}
.form-msg.is-show{display:block;}

/* ---------- CTA 区 ---------- */
.cta-band{
  background:var(--dark);
  color:rgba(255,255,255,.8);
  border-radius:var(--r-lg);
  padding:48px;
  display:grid;
  grid-template-columns:1.4fr auto;
  gap:32px;
  align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.72);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:72px 0 28px;margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(255,255,255,.78);font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 悬浮 / 固定转化 ---------- */
.float-cta{
  display:none;
  position:fixed;
  right:32px;bottom:32px;
  z-index:50;
  align-items:center;gap:10px;
  height:52px;padding:0 26px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,#5B4BC4,#7B63E8);
  color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 16px 34px -14px rgba(91,75,196,.85);
}
.float-cta:hover{color:#fff;transform:translateY(-2px);}
.mobile-bar{display:none;}

/* ---------- 响应式 ---------- */
@media (min-width:1025px){
  .float-cta{display:inline-flex;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .header-inner{padding:0 24px;gap:18px;}
  .nav{gap:16px;}
  .nav a{font-size:14.5px;}
  .search input{width:120px;}
  .section{padding:72px 0;}
  .cards{grid-template-columns:repeat(2,1fr);}
  .suggest{grid-template-columns:repeat(2,1fr);}
  .media-block{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .form-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .header-inner{height:56px;padding:0 20px;gap:12px;}
  .burger{display:flex;}
  .nav{
    position:fixed;
    inset:0;
    background:#fff;
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:0;
    padding:88px 24px 32px;
    transform:translateX(100%);
    transition:transform .28s ease;
    z-index:70;
    box-shadow:-10px 0 30px rgba(23,19,37,.12);
    margin-left:0;
  }
  .nav.is-open{transform:translateX(0);}
  .nav a{
    font-size:18px;
    width:100%;
    padding:16px 0;
    border-bottom:1px solid var(--line);
  }
  .nav a::after{display:none;}
  .nav a.is-active{color:var(--brand);}
  .header-actions{gap:8px;}
  .search{display:none;}
  .logo-text{font-size:16px;}
  .page-head{padding:36px 0 34px;}
  .page-head::after{display:none;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .intro-item{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .num-outline{font-size:34px;-webkit-text-stroke-width:1.2px;}
  .step{grid-template-columns:46px 1fr;gap:14px;}
  .step-num i{width:36px;height:36px;font-size:14px;}
  .step-num::before{top:44px;bottom:-36px;}
  .steps{gap:32px;}
  .step-inner{grid-template-columns:1fr;gap:18px;padding:20px;}
  .step:nth-child(even) .step-figure{order:0;}
  .cards{grid-template-columns:1fr;}
  .suggest{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;padding:16px;}
  .faq-a{margin:0 16px 18px;padding-left:0;padding-right:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-bar{
    display:flex;
    position:fixed;left:0;right:0;bottom:0;
    z-index:80;
    height:60px;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:0 16px calc(env(safe-area-inset-bottom,0px)) 16px;
    background:rgba(255,255,255,.94);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(23,19,37,.1);
  }
  .mobile-bar span{font-size:14px;color:var(--ink);font-weight:600;}
  .site-footer{padding-bottom:100px;}
  .float-cta{display:none;}
}
@media (max-width:520px){
  .head-badges{gap:8px;}
  .tag{font-size:12px;height:26px;padding:0 12px;}
  .field-row{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .btn--lg{height:50px;padding:0 22px;}
  .form-card{padding:22px;}
}

/* roulang page: category4 */
:root{
  --primary:#5B4BC4;
  --primary-dark:#4638A8;
  --primary-light:#EDEAFB;
  --accent:#FF8A3D;
  --accent-light:#FFF1E7;
  --mint:#12B48A;
  --mint-light:#E4F7F1;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --line-soft:#F1EEE8;
  --text:#2A2C33;
  --muted:#6B7280;
  --dark:#171325;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(23,19,37,.04);
  --shadow-2:0 12px 30px -12px rgba(23,19,37,.14);
  --grad:linear-gradient(90deg,#5B4BC4,#7B63E8);
  --space-section:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* 顶部细条 */
.topline{height:3px;background:var(--grad);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid #EDE9E1;
  box-shadow:0 4px 16px rgba(23,19,37,.05);
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 32px;
  height:68px;display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;letter-spacing:0;
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.nav{display:flex;align-items:center;gap:24px;margin-right:auto;}
.nav a{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;
}
.nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--primary);transition:right .24s ease;
}
.nav a:hover{color:var(--primary);}
.nav a:hover::after{right:0;}
.nav a.is-active{color:var(--primary);font-weight:600;}
.nav a.is-active::after{right:0;}
.header-actions{display:flex;align-items:center;gap:12px;}
.search{
  position:relative;display:flex;align-items:center;
  background:#F3F1EC;border-radius:var(--radius-pill);
  height:38px;padding:0 14px;gap:8px;
  border:2px solid transparent;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,75,196,.14);}
.search input{
  border:0;background:transparent;outline:none;width:170px;font-size:14px;line-height:1;
}
.search input::placeholder{color:#9AA0A6;}
.search svg{color:var(--muted);flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;padding:0 22px;height:48px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 6px 16px -8px rgba(91,75,196,.7);}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -10px rgba(91,75,196,.75);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 10px -6px rgba(91,75,196,.6);}
.btn--ghost{background:#fff;color:var(--primary);border-color:rgba(91,75,196,.35);}
.btn--ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{height:40px;font-size:14px;padding:0 18px;}
.btn:disabled,.btn.is-disabled{background:#E8E4DC;color:#9AA0A6;pointer-events:none;box-shadow:none;}
.burger{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);border-radius:2px;
  transform:translateX(-50%);transition:.24s ease;
}
.burger span{top:50%;margin-top:-1px;}
.burger span::before{content:"";top:-6px;}
.burger span::after{content:"";top:6px;}

/* 内页头 */
.page-head{
  position:relative;overflow:hidden;
  background-color:#F3F0FA;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:52px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(250,248,245,.96) 0%,rgba(250,248,245,.88) 46%,rgba(250,248,245,.6) 100%);
}
.page-head .container{position:relative;z-index:2;}
.dots{
  position:absolute;right:40px;top:38px;width:180px;height:120px;z-index:1;
  background-image:radial-gradient(rgba(91,75,196,.35) 1.6px,transparent 1.6px);
  background-size:16px 16px;opacity:.55;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.breadcrumb a{color:var(--primary);}
.breadcrumb span{color:#B8B3A8;}
.page-head h1{
  font-size:clamp(30px,3.8vw,46px);line-height:1.18;font-weight:800;
  max-width:820px;margin-bottom:16px;
}
.page-head .lead{font-size:17px;color:var(--muted);max-width:700px;line-height:1.85;}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:var(--primary-light);color:var(--primary-dark);
  border:1px solid transparent;transition:.2s ease;
}
.tag--accent{background:var(--accent-light);color:#B4560F;}
.tag--mint{background:var(--mint-light);color:#0A7A5E;}
.tag--neutral{background:#F2EFE9;color:#5C5F66;}
.tag:hover{transform:translateY(-1px);}
a.tag:hover{color:var(--primary-dark);box-shadow:var(--shadow-1);}

/* 通用板块 */
.section{padding:var(--space-section) 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,2.7vw,32px);line-height:1.3;margin-bottom:12px;}
.section-head p{color:var(--muted);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--primary);background:var(--primary-light);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:16px;
}

/* 搜索区 */
.search-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:32px;margin-top:-40px;position:relative;z-index:5;
}
.search-panel h2{font-size:20px;margin-bottom:8px;}
.search-panel p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.search-bar{
  display:flex;align-items:center;gap:12px;background:#F3F1EC;border-radius:var(--radius-pill);
  border:2px solid transparent;padding:0 18px;height:52px;transition:.2s ease;
}
.search-bar:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(91,75,196,.12);}
.search-bar input{border:0;background:transparent;outline:none;flex:1;height:100%;font-size:16px;}
.search-bar svg{color:var(--muted);}
.hot-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;align-items:center;}
.hot-tags .label{font-size:13px;color:var(--muted);margin-right:2px;}

/* FAQ 手风琴 */
.faq-group{margin-bottom:44px;}
.group-head{
  display:flex;align-items:baseline;gap:14px;padding-bottom:14px;
  border-bottom:1px solid var(--line);margin-bottom:8px;
}
.group-head .idx{
  font-size:26px;font-weight:800;color:rgba(91,75,196,.28);letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1;
}
.group-head h3{font-size:21px;}
.group-head .count{margin-left:auto;font-size:13px;color:var(--muted);}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:12px;margin-bottom:10px;transition:border-color .24s ease,box-shadow .24s ease,background .24s ease;
}
.faq-item:hover{border-color:rgba(91,75,196,.28);box-shadow:var(--shadow-1);}
.faq-item[open]{border-left-color:var(--primary);box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:500;
  color:var(--primary);background:var(--primary-light);transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--primary-dark);}
.faq-body{padding:0 22px 22px;font-size:15px;color:#4B4E57;line-height:1.9;}
.faq-body ol{list-style:decimal;padding-left:20px;margin-top:10px;}
.faq-body li{margin-bottom:6px;}
.faq-body strong{color:var(--text);}

/* 排查步骤 */
.steps-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.steps-wrap img{border-radius:var(--radius-lg);box-shadow:var(--shadow-2);width:100%;height:auto;}
.step-list{border-top:1px solid var(--line);}
.step-row{
  display:flex;gap:20px;padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.step-row:hover{background:rgba(237,234,251,.4);}
.step-num{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--primary-light);
  color:var(--primary-dark);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;font-variant-numeric:tabular-nums;
}
.step-row h3{font-size:18px;margin-bottom:6px;}
.step-row p{font-size:15px;color:var(--muted);}

/* 快捷入口行 */
.entry-list{border-top:1px solid var(--line);}
.entry-row{
  display:grid;grid-template-columns:56px 1fr auto;gap:20px;align-items:center;
  padding:22px 6px;border-bottom:1px solid var(--line);transition:background .2s ease,transform .2s ease;
}
.entry-row:hover{background:rgba(237,234,251,.36);}
.entry-row:hover .entry-arrow{transform:translateX(4px);}
.entry-row .num{
  font-size:22px;font-weight:800;color:rgba(23,19,37,.12);font-variant-numeric:tabular-nums;
}
.entry-row h3{font-size:18px;margin-bottom:4px;}
.entry-row p{font-size:14px;color:var(--muted);}
.entry-arrow{color:var(--primary);font-size:15px;font-weight:600;transition:transform .2s ease;white-space:nowrap;}

/* CTA 卡 */
.cta-card{
  background:var(--dark);border-radius:24px;padding:52px;color:#fff;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
}
.cta-card h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;line-height:1.3;}
.cta-card p{color:rgba(255,255,255,.76);font-size:15px;margin-bottom:26px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn--light{background:#fff;color:var(--primary-dark);}
.btn--light:hover{background:#fff;color:var(--primary-dark);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,255,255,.6);}
.btn--line{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn--line:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.6);}
.cta-side{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);padding:24px;
}
.cta-side h3{color:#fff;font-size:16px;margin-bottom:14px;}
.cta-side ul li{
  display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.78);
  padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.14);
}
.cta-side ul li:last-child{border-bottom:0;}
.cta-side ul li b{color:var(--accent);font-weight:700;}

/* 表单 */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--text);}
.field input,.field textarea,.field select{
  height:46px;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:0 14px;background:#fff;outline:none;transition:.2s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(91,75,196,.12);
}
.form-note{font-size:13px;color:var(--muted);}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px;}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:72px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:var(--primary);}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* 移动端固定条 */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:60px;padding:0 16px calc(env(safe-area-inset-bottom,0px));
  align-items:center;justify-content:space-between;gap:12px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  box-shadow:0 -6px 20px rgba(23,19,37,.1);
}
.mobile-bar span{font-size:14px;font-weight:600;color:var(--text);}
.mobile-bar .btn{height:40px;font-size:14px;padding:0 18px;}

/* 响应式 */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .header-inner{padding:0 24px;gap:18px;}
  .nav{gap:16px;}
  .search input{width:120px;}
  :root{--space-section:72px;}
  .steps-wrap{grid-template-columns:1fr;gap:36px;}
  .cta-card{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .header-inner{height:56px;padding:0 20px;gap:12px;}
  .burger{display:block;}
  .nav{
    position:fixed;inset:56px 0 0 0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:18px 20px 96px;margin:0;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;overflow-y:auto;
  }
  .nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav a{font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line-soft);}
  .nav a::after{display:none;}
  .search{display:none;}
  :root{--space-section:56px;}
  .page-head{padding:36px 0 44px;}
  .dots{display:none;}
  .search-panel{padding:24px;margin-top:-28px;}
  .faq-item summary{font-size:16px;padding:16px 18px;}
  .faq-body{padding:0 18px 18px;}
  .entry-row{grid-template-columns:40px 1fr;gap:14px;}
  .entry-arrow{display:none;}
  .form-grid{grid-template-columns:1fr;}
  .cta-card{padding:30px 22px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .mobile-bar{display:flex;}
  .btn{height:46px;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .logo-text{font-size:15px;}
  .page-head h1{font-size:26px;}
  .page-head .lead{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .mobile-bar .btn{width:auto;}
}

/* roulang page: category3 */
:root{
  --brand:#5B4BC4;
  --brand-dark:#4638A8;
  --brand-light:#EDEAFB;
  --brand-mid:#7B63E8;
  --accent:#FF8A3D;
  --accent-light:#FFF0E5;
  --mint:#12B48A;
  --mint-light:#E4F7F1;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --line-soft:#EDE9E1;
  --text:#2A2C33;
  --muted:#6B7280;
  --dark:#171325;
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(23,19,37,.04);
  --shadow-lg:0 12px 30px -12px rgba(23,19,37,.14);
  --sec:96px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",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:1.85;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.topbar{height:3px;background:linear-gradient(90deg,var(--brand),var(--brand-mid));}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line-soft);box-shadow:0 4px 16px rgba(23,19,37,.05);}
.header-inner{max-width:1200px;margin:0 auto;padding:0 32px;height:68px;display:flex;align-items:center;gap:28px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--brand);color:#fff;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav a{position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap;}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.nav a:hover{color:var(--brand);}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1);}
.nav a.is-active{color:var(--brand);font-weight:600;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:var(--r-pill);background:#F3F1EC;color:var(--muted);transition:background .2s ease,box-shadow .2s ease;}
.search:focus-within{background:#fff;box-shadow:0 0 0 2px var(--brand-light),0 0 0 3px var(--brand);}
.search input{border:0;background:transparent;outline:none;width:190px;color:var(--text);}
.search input::placeholder{color:#9AA0A6;}
.search svg{flex-shrink:0;color:var(--muted);}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ============ buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:600;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;border:1px solid transparent;white-space:nowrap;}
.btn--sm{height:40px;padding:0 20px;font-size:14px;}
.btn--md{height:48px;padding:0 26px;font-size:15px;}
.btn--lg{height:52px;padding:0 32px;font-size:16px;}
.btn--primary{background:linear-gradient(90deg,var(--brand),var(--brand-mid));color:#fff;box-shadow:0 6px 16px -8px rgba(91,75,196,.7);}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(91,75,196,.75);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:#fff;color:var(--brand);border-color:rgba(91,75,196,.35);}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn--plain{background:#fff;color:var(--text);border-color:var(--line);}
.btn--plain:hover{border-color:rgba(91,75,196,.4);color:var(--brand);}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn[disabled],.btn.is-disabled{background:#E8E4DC;color:#9AA0A6;box-shadow:none;pointer-events:none;}

/* ============ badges / tags ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;}
.badge--brand{background:var(--brand-light);color:var(--brand-dark);}
.badge--accent{background:var(--accent-light);color:#C25A15;}
.badge--mint{background:var(--mint-light);color:#0A7A5E;}
.badge--gray{background:#F1EFEA;color:#55585F;}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-pill);font-size:13px;background:#F4F2ED;color:#5A5D64;line-height:1;}

/* ============ page hero ============ */
.page-hero{position:relative;background:var(--brand-light) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;padding:44px 0 52px;overflow:hidden;}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(250,248,245,.96) 0%,rgba(237,234,251,.86) 52%,rgba(237,234,251,.45) 100%);}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumbs a{color:var(--brand);}
.crumbs span{color:#B9B4A9;}
.page-hero h1{font-size:clamp(30px,3.6vw,44px);font-weight:800;max-width:760px;}
.page-hero .lead{margin-top:16px;max-width:660px;font-size:16px;color:#4A4D55;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}

/* ============ sections ============ */
.section{padding:var(--sec) 0;}
.section--tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.8vw,34px);}
.section-head p{margin-top:12px;color:var(--muted);max-width:640px;font-size:15px;}
.section-head .more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;flex-shrink:0;}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;margin-bottom:12px;}

/* ============ filter bar ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--shadow);}
.filter-bar a{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;border-radius:var(--r-pill);font-size:14px;color:#4A4D55;background:#F6F4EF;transition:background .2s ease,color .2s ease,transform .18s ease;}
.filter-bar a:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.filter-bar a.is-on{background:var(--brand);color:#fff;}
.filter-bar a.is-on:hover{background:var(--brand-dark);color:#fff;}
.filter-note{margin-top:14px;font-size:13px;color:var(--muted);}

/* ============ case grid ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:36px;}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(91,75,196,.32);}
.case-card figure{position:relative;margin:0;overflow:hidden;}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.case-card:hover img{transform:scale(1.03);}
.case-card figcaption{position:absolute;left:14px;top:14px;display:flex;gap:8px;}
.case-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.case-body h3{font-size:19px;line-height:1.45;}
.case-body p{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);}
.case-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.case-foot .arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px;}
.case-card:hover .case-foot .arrow svg{transform:translateX(3px);}
.case-foot .arrow svg{transition:transform .2s ease;}

/* ============ value rows ============ */
.value-rows{border-top:1px solid var(--line);}
.value-row{display:grid;grid-template-columns:120px 1fr;gap:32px;align-items:start;padding:34px 0;border-bottom:1px solid var(--line);}
.value-row .num{font-size:46px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(91,75,196,.55);letter-spacing:-.02em;}
.value-row h3{font-size:21px;margin-bottom:10px;}
.value-row p{color:var(--muted);font-size:15px;max-width:760px;}

/* ============ flow ============ */
.flow{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow::before{content:"";position:absolute;left:6%;right:6%;top:22px;border-top:2px dashed rgba(91,75,196,.28);}
.flow-step{position:relative;z-index:2;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 20px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease;}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.flow-dot{width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 8px 18px -10px rgba(91,75,196,.85);}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--muted);}

/* ============ stats dark ============ */
.dark{background:var(--dark);color:#fff;position:relative;overflow:hidden;}
.dark::before{content:"";position:absolute;top:-120px;right:-80px;width:340px;height:340px;border-radius:50%;border:1px solid rgba(255,255,255,.08);}
.dark .eyebrow{color:var(--accent);}
.dark h2{color:#fff;}
.dark .section-head p{color:rgba(255,255,255,.66);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:2;}
.stat{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-card);padding:24px;}
.stat b{display:block;font-size:34px;font-weight:800;color:var(--accent);line-height:1.1;letter-spacing:-.02em;}
.stat span{display:block;margin-top:10px;font-size:14px;color:rgba(255,255,255,.7);}
.voice-scroll{display:flex;gap:20px;margin-top:36px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin;}
.voice{min-width:300px;max-width:340px;background:#fff;border-radius:var(--r-card);padding:22px;color:var(--text);}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-light);color:var(--brand-dark);font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.voice-top b{font-size:15px;}
.voice-top em{display:block;font-style:normal;font-size:13px;color:var(--muted);}
.voice p{font-size:14.5px;color:#4A4D55;}
.stars{color:var(--accent);font-size:14px;letter-spacing:2px;margin-top:12px;}

/* ============ faq ============ */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);}
.faq-item{border-bottom:1px solid var(--line-soft);position:relative;}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 24px;font-size:17px;font-weight:600;transition:color .2s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item .plus{position:relative;width:20px;height:20px;flex-shrink:0;transition:transform .24s ease;}
.faq-item .plus::before,.faq-item .plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.faq-item .plus::before{left:0;top:9px;width:20px;height:2px;}
.faq-item .plus::after{left:9px;top:0;width:2px;height:20px;}
.faq-item[open] .plus{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--brand-dark);}
.faq-item[open]::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;background:var(--brand);border-radius:0 3px 3px 0;}
.faq-answer{padding:0 60px 24px 24px;font-size:15px;color:var(--muted);}

/* ============ form / cta ============ */
.cta-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:44px;box-shadow:var(--shadow);}
.cta-box h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.cta-box .sub{color:var(--muted);font-size:15px;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:#4A4D55;}
.cta-points svg{flex-shrink:0;margin-top:5px;color:var(--mint);}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#4A4D55;}
.form-field input,.form-field select,.form-field textarea{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);background:#fff;outline:none;transition:border-color .2s ease,box-shadow .2s ease;}
.form-field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;font-family:inherit;font-size:15px;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light);}
.form-hint{font-size:13px;color:var(--muted);margin-top:10px;}
.form-actions{display:flex;gap:12px;align-items:center;margin-top:6px;flex-wrap:wrap;}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:var(--brand);}
.site-footer p{font-size:14.5px;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.5);}

/* ============ sticky mobile cta ============ */
.sticky-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(23,19,37,.1);padding:10px 16px calc(10px + env(safe-area-inset-bottom));align-items:center;justify-content:space-between;gap:12px;}
.sticky-cta span{font-size:14px;font-weight:600;}
.float-cta{position:fixed;right:32px;bottom:32px;z-index:70;display:inline-flex;}

/* ============ responsive ============ */
@media (max-width:1024px){
  :root{--sec:72px;}
  .container{padding:0 24px;}
  .header-inner{padding:0 24px;gap:18px;}
  .nav{gap:16px;}
  .nav a{font-size:14px;}
  .search input{width:130px;}
  .case-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .float-cta{display:none;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  body{font-size:15.5px;}
  .header-inner{height:56px;}
  .nav{position:fixed;inset:56px 0 auto 0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:12px 20px 22px;border-bottom:1px solid var(--line);box-shadow:0 18px 30px -18px rgba(23,19,37,.25);transform:translateY(-140%);transition:transform .28s ease;margin-left:0;}
  .nav.is-open{transform:translateY(0);}
  .nav a{width:100%;padding:15px 0;font-size:18px;border-bottom:1px solid var(--line-soft);}
  .nav a::after{display:none;}
  .nav .nav-cta{width:100%;margin-top:16px;height:48px;border-radius:var(--r-pill);background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;border-bottom:0;}
  .search{display:none;}
  .burger{display:flex;}
  .page-hero{padding:32px 0 40px;}
  .value-row{grid-template-columns:80px 1fr;gap:18px;padding:26px 0;}
  .value-row .num{font-size:34px;}
  .case-grid{grid-template-columns:1fr;}
  .cta-box{grid-template-columns:1fr;padding:26px;gap:26px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .stat b{font-size:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .sticky-cta{display:flex;}
  body{padding-bottom:64px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .flow{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .value-row{grid-template-columns:1fr;gap:8px;}
  .voice{min-width:264px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-answer{padding:0 18px 20px;}
  .btn--lg,.btn--md{width:100%;}
  .sticky-cta .btn{height:44px;padding:0 18px;}
}