/* roulang page: index */
:root{
  --ink-900:#14121F;
  --ink-800:#211D31;
  --primary:#2B2444;
  --primary-600:#3A315E;
  --accent:#47C7B8;
  --accent-2:#E6B85C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --border:#E6E1D8;
  --text:#1F1D2B;
  --muted:#6A6678;
  --success:#3E9B6B;
  --warning:#D98C3F;
  --danger:#C95C5C;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(20,18,31,.06);
  --shadow-lg:0 16px 40px rgba(20,18,31,.12);
  --container:1200px;
  --gutter:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;border-radius:16px;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0 0 1rem;color:var(--text);letter-spacing:.2px;}
h1{font-size:clamp(2rem,5vw,4rem);line-height:1.15;font-weight:800;}
h2{font-size:clamp(1.75rem,3vw,2.75rem);line-height:1.2;font-weight:700;}
h3{font-size:1.5rem;line-height:1.35;font-weight:700;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(71,199,184,.35);border-radius:8px;}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;
  padding:10px 18px;border-radius:0 0 12px 0;z-index:2000;
}
.skip-link:focus{left:0;color:#fff;}

.grid-container{max-width:var(--container);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--ink-900);color:#EDEAF4;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark p{color:rgba(237,234,244,.78);}
.section--paper{background:var(--surface);}
.section__head{max-width:760px;margin-bottom:44px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section__lead{color:var(--muted);font-size:1.0625rem;margin-bottom:0;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--radius-pill);
  font-size:.8125rem;line-height:1.6;font-weight:600;letter-spacing:.4px;
  background:rgba(43,36,68,.08);color:var(--primary);margin-bottom:16px;
}
.tag--accent{background:rgba(71,199,184,.16);color:#1F6F66;}
.tag--gold{background:rgba(230,184,92,.2);color:#8A6417;}
.tag--soft{background:rgba(43,36,68,.06);color:var(--muted);}
.tag--dark{background:rgba(237,234,244,.12);color:#EDEAF4;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:1rem;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn--primary{background:var(--primary);color:#fff;}
.btn--primary:hover{background:var(--primary-600);color:#fff;box-shadow:var(--shadow);}
.btn--accent{background:var(--accent);color:#0F2C2A;}
.btn--accent:hover{background:#37B2A4;color:#0F2C2A;box-shadow:var(--shadow);}
.btn--outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn--outline:hover{background:var(--primary);color:#fff;}
.btn--ghost{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.04);}
.btn--ghost:hover{background:#fff;color:var(--ink-900);}
.btn--sm{min-height:42px;padding:0 20px;font-size:.9375rem;}
.btn--block{width:100%;}
.btn:active{transform:translateY(1px);}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9375rem;color:var(--primary);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}

/* 顶部活动条 */
.topbar{background:var(--ink-900);color:#EDEAF4;font-size:.875rem;}
.topbar__inner{
  display:flex;align-items:center;gap:14px;min-height:40px;flex-wrap:wrap;
  padding-top:6px;padding-bottom:6px;
}
.topbar__badge{
  background:rgba(230,184,92,.18);color:var(--accent-2);
  padding:2px 12px;border-radius:var(--radius-pill);font-weight:600;font-size:.8125rem;white-space:nowrap;
}
.topbar__text{margin:0;color:rgba(237,234,244,.8);font-size:.875rem;}
.topbar__countdown{margin-left:auto;color:var(--accent);font-variant-numeric:tabular-nums;font-weight:600;font-size:.875rem;}
.topbar__close{
  background:transparent;border:0;color:rgba(237,234,244,.6);font-size:1.25rem;line-height:1;
  cursor:pointer;padding:4px 8px;border-radius:8px;
}
.topbar__close:hover{color:#fff;}
.topbar.is-hidden{display:none;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:900;background:rgba(247,245,240,.94);
  border-bottom:1px solid transparent;backdrop-filter:blur(8px);
  transition:box-shadow .25s ease,border-color .25s ease,background-color .25s ease;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--border);box-shadow:0 10px 30px rgba(20,18,31,.08);}
.header__inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.1875rem;color:var(--ink-900);letter-spacing:.5px;}
.brand:hover{color:var(--primary);}
.brand__mark{
  width:34px;height:34px;border-radius:12px;flex:0 0 34px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-600) 60%,#4A3F72 100%);
  display:inline-flex;align-items:center;justify-content:center;color:var(--accent-2);font-size:.9375rem;
  position:relative;overflow:hidden;
}
.brand__mark::after{
  content:"";position:absolute;width:5px;height:5px;border-radius:50%;
  background:var(--accent);top:8px;right:8px;box-shadow:0 0 8px var(--accent);
}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.main-nav a{
  display:inline-block;padding:9px 14px;border-radius:var(--radius-pill);
  font-size:.9375rem;font-weight:600;color:var(--ink-800);position:relative;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);background:rgba(43,36,68,.07);}
.main-nav a.is-active::after{transform:scaleX(1);}
.header__cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--border);
  background:#fff;color:var(--ink-900);font-size:1.0625rem;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;background:var(--ink-900);color:#EDEAF4;z-index:1200;
  padding:26px 22px 30px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.mobile-drawer .brand{color:#fff;}
.mobile-drawer__close{background:transparent;border:0;color:#EDEAF4;font-size:1.5rem;cursor:pointer;padding:6px 10px;}
.mobile-drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 6px;border-bottom:1px solid rgba(237,234,244,.12);
  color:#EDEAF4;font-size:1.0625rem;font-weight:600;
}
.mobile-drawer nav a:hover,.mobile-drawer nav a.is-active{color:var(--accent);}
.mobile-drawer__foot{margin-top:auto;padding-top:24px;display:grid;gap:12px;}

/* Hero */
.hero{position:relative;background:var(--ink-900);color:#fff;overflow:hidden;}
.hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.42;
}
.hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(20,18,31,.96) 0%,rgba(20,18,31,.88) 45%,rgba(43,36,68,.72) 100%);
}
.hero__stars{
  position:absolute;inset:0;opacity:.7;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 24%, rgba(255,255,255,.75), transparent 60%),
    radial-gradient(1.2px 1.2px at 26% 68%, rgba(230,184,92,.7), transparent 60%),
    radial-gradient(1.4px 1.4px at 48% 18%, rgba(71,199,184,.65), transparent 60%),
    radial-gradient(1.1px 1.1px at 72% 52%, rgba(255,255,255,.6), transparent 60%),
    radial-gradient(1.5px 1.5px at 88% 30%, rgba(255,255,255,.5), transparent 60%),
    radial-gradient(1px 1px at 62% 82%, rgba(230,184,92,.55), transparent 60%);
}
.hero__inner{position:relative;z-index:2;padding-top:88px;padding-bottom:88px;}
.hero__copy h1{color:#fff;margin-bottom:18px;}
.hero__sub{font-size:1.125rem;color:rgba(237,234,244,.82);max-width:560px;margin-bottom:28px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero__points{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px 24px;}
.hero__points li{font-size:.9375rem;color:rgba(237,234,244,.78);display:flex;align-items:center;gap:8px;}
.hero__points i{color:var(--accent);font-size:.8125rem;}
.hero-card{
  background:#1D1930;border:1px solid rgba(237,234,244,.14);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-lg);
}
.hero-card__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.hero-card__head h3{font-size:1.0625rem;margin:0;color:#fff;}
.hero-card__list{list-style:none;padding:0;margin:0;}
.hero-card__list li{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px solid rgba(237,234,244,.1);
}
.hero-card__list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-card__list strong{color:var(--accent-2);font-size:1.5rem;font-weight:800;font-variant-numeric:tabular-nums;}
.hero-card__list span{color:rgba(237,234,244,.72);font-size:.875rem;}
.hero-card__note{margin:20px 0 0;font-size:.8125rem;color:rgba(237,234,244,.6);}

/* 服务 */
.service-feature{margin-bottom:28px;}
.feature-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);height:100%;
  transition:transform .22s ease,box-shadow .22s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.feature-card img{border-radius:0;aspect-ratio:16/10;object-fit:cover;width:100%;}
.feature-card__body{padding:26px 28px 28px;}
.feature-card__body h3{font-size:1.375rem;margin-bottom:10px;}
.feature-card__body p{color:var(--muted);font-size:1rem;margin-bottom:16px;}
.service-list .cell{margin-bottom:24px;}
.mini-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;height:100%;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D8D0C2;}
.mini-card__icon{
  width:46px;height:46px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(71,199,184,.14);color:#1F6F66;font-size:1.0625rem;margin-bottom:16px;
}
.mini-card h3{font-size:1.125rem;margin-bottom:8px;}
.mini-card p{color:var(--muted);font-size:.9375rem;margin-bottom:0;}

/* 数据 */
.stats{position:relative;overflow:hidden;background:var(--ink-900);}
.stats__bg{
  position:absolute;inset:0;opacity:.2;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.stats__inner{position:relative;z-index:2;}
.stat-item{padding:22px 20px 22px 0;border-left:1px solid rgba(237,234,244,.16);padding-left:24px;margin-bottom:20px;}
.stat-item strong{display:block;font-size:clamp(2rem,3.4vw,2.75rem);font-weight:800;color:var(--accent-2);line-height:1.1;font-variant-numeric:tabular-nums;}
.stat-item span{display:block;font-size:.875rem;color:rgba(237,234,244,.72);margin-top:8px;}

/* 案例 */
.case-grid .cell{margin-bottom:26px;}
.case-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.case-card__media{position:relative;}
.case-card__media img{border-radius:0;aspect-ratio:4/3;object-fit:cover;width:100%;}
.case-card__media .tag{position:absolute;left:16px;top:16px;margin:0;background:rgba(20,18,31,.78);color:#fff;backdrop-filter:blur(4px);}
.case-card__body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.case-card__body h3{font-size:1.25rem;margin:0;}
.case-card__body h3 a:hover{color:var(--accent);}
.case-card__body p{color:var(--muted);font-size:.9375rem;margin:0;}
.case-card__meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--border);font-size:.8125rem;color:var(--muted);display:flex;justify-content:space-between;gap:10px;}

/* 方案 tabs */
.plan-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;}
.plan-tabs{display:flex;flex-direction:column;background:#FBF9F5;border-right:1px solid var(--border);}
.plan-tab{
  appearance:none;border:0;background:transparent;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:1rem;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--border);transition:background-color .2s ease,color .2s ease;
  display:flex;align-items:center;gap:10px;
}
.plan-tab:hover{background:rgba(43,36,68,.05);color:var(--primary);}
.plan-tab.is-active{background:#fff;color:var(--primary);box-shadow:inset 3px 0 0 var(--accent);}
.plan-tab span{font-size:.75rem;color:var(--accent-2);font-weight:700;}
.plan-panel{padding:34px 32px;display:none;}
.plan-panel.is-active{display:block;}
.plan-panel h3{font-size:1.5rem;margin-bottom:12px;}
.plan-panel p{color:var(--muted);}
.plan-panel img{border-radius:16px;margin:18px 0;aspect-ratio:16/9;object-fit:cover;width:100%;}
.plan-steps{list-style:none;padding:0;margin:18px 0 0;}
.plan-steps li{display:flex;gap:14px;padding:12px 0;border-bottom:1px dashed var(--border);font-size:.9375rem;color:var(--text);}
.plan-steps li:last-child{border-bottom:0;}
.plan-steps b{color:var(--primary);font-weight:700;flex:0 0 auto;}

/* 资讯 */
.news-list{margin-top:8px;}
.news-list .cell{margin-bottom:26px;}
.news-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.news-card__thumb img{border-radius:0;aspect-ratio:16/10;object-fit:cover;width:100%;}
.news-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-card__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-card__meta .tag{margin:0;}
.news-card__date{font-size:.8125rem;color:var(--muted);}
.news-card__title{font-size:1.125rem;margin:0;line-height:1.5;}
.news-card__title a:hover{color:var(--accent);}
.news-card__excerpt{font-size:.9375rem;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__body .link-arrow{margin-top:auto;padding-top:8px;}
.empty-state{
  text-align:center;padding:56px 26px;background:var(--surface);
  border:1px dashed var(--border);border-radius:var(--radius);
}
.empty-state i{font-size:1.75rem;color:var(--accent-2);margin-bottom:14px;display:block;}
.empty-state p{color:var(--muted);margin-bottom:18px;}

/* FAQ */
.faq{max-width:860px;margin:0 auto;}
.faq__item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;}
.faq__item:hover{border-color:#D8D0C2;}
.faq__item.is-open{box-shadow:var(--shadow);border-color:rgba(71,199,184,.5);}
.faq__q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  padding:20px 22px;font-size:1.0625rem;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq__q:hover{color:var(--primary);}
.faq__q i{color:var(--accent);transition:transform .25s ease;font-size:.9375rem;}
.faq__item.is-open .faq__q i{transform:rotate(45deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq__a-inner{padding:0 22px 22px;color:var(--muted);font-size:.9375rem;}
.faq__a-inner p:last-child{margin-bottom:0;}

/* 联系 */
.contact-wrap{display:grid;gap:34px;}
.contact-info h2{margin-bottom:14px;}
.contact-info p{color:var(--muted);}
.contact-list{list-style:none;padding:0;margin:24px 0 0;}
.contact-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:.9375rem;color:var(--text);}
.contact-list i{color:var(--accent);margin-top:6px;}
.form-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-lg);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:.875rem;font-weight:600;margin-bottom:8px;color:var(--ink-800);}
.form-row input,.form-row textarea,.form-row select{
  width:100%;min-height:50px;padding:12px 16px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:#FCFBF8;font-size:1rem;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;font-family:inherit;
}
.form-row textarea{min-height:120px;resize:vertical;line-height:1.7;}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(71,199,184,.18);background:#fff;
}
.form-hint{font-size:.8125rem;color:var(--muted);margin:14px 0 0;}
.form-status{margin-top:14px;font-size:.875rem;font-weight:600;display:none;}
.form-status.is-ok{display:block;color:var(--success);}
.form-status.is-err{display:block;color:var(--danger);}

/* CTA 条 */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-600) 55%,#463A6B 100%);
  color:#fff;border-radius:24px;padding:48px 40px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(71,199,184,.35),transparent 65%);
}
.cta-band h2{color:#fff;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.82);position:relative;z-index:2;max-width:620px;}
.cta-band .btn{position:relative;z-index:2;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px;}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(237,234,244,.72);padding:72px 0 26px;font-size:.9375rem;}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:18px;letter-spacing:.4px;}
.site-footer a{color:rgba(237,234,244,.72);}
.site-footer a:hover{color:var(--accent);}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand p{max-width:320px;font-size:.9375rem;color:rgba(237,234,244,.66);}
.footer-list{list-style:none;padding:0;margin:0;}
.footer-list li{margin-bottom:11px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(237,234,244,.14);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:.8125rem;color:rgba(237,234,244,.55);
}
.footer-col{margin-bottom:30px;}

@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .hero__inner{padding-top:64px;padding-bottom:64px;}
  .brand__text{font-size:1.0625rem;}
}
@media screen and (max-width:900px){
  .main-nav,.header__cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header__inner{justify-content:space-between;}
  .topbar__countdown{margin-left:0;width:100%;}
}
@media screen and (max-width:640px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .hero__inner{padding-top:52px;padding-bottom:52px;}
  .hero__actions .btn{width:100%;}
  .hero-card{padding:22px;}
  .plan-tabs{border-right:0;border-bottom:1px solid var(--border);}
  .plan-panel{padding:26px 22px;}
  .cta-band{padding:34px 24px;border-radius:18px;}
  .form-card{padding:22px;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (max-width:520px){
  .topbar__text{font-size:.8125rem;}
  .grid-container{padding-left:16px;padding-right:16px;}
}

/* roulang page: article */
:root{
  --ink-900:#14121F;
  --ink-800:#211D31;
  --primary:#2B2444;
  --primary-600:#3A315E;
  --accent:#47C7B8;
  --accent-2:#E6B85C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --border:#E6E1D8;
  --text:#1F1D2B;
  --muted:#6A6678;
  --success:#3E9B6B;
  --warning:#D98C3F;
  --danger:#C95C5C;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(20,18,31,.06);
  --shadow-lg:0 16px 40px rgba(20,18,31,.12);
  --wrap:1200px;
  --read:820px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:.01em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.25em;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(71,199,184,.35);border-radius:6px;}
.grid-container{max-width:var(--wrap);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(8px);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(20,18,31,.10);background:#fff;}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink-900);font-size:1.125rem;letter-spacing:.02em;}
.brand:hover{color:var(--ink-900);}
.brand__mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
  color:var(--accent-2);font-size:.85rem;
  box-shadow:0 6px 16px rgba(43,36,68,.28);
}
.brand__text{white-space:nowrap;}
.main-nav ul{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.main-nav a{
  position:relative;display:block;padding:9px 14px;border-radius:10px;
  font-size:.95rem;font-weight:500;color:#413C55;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--primary);background:rgba(43,36,68,.06);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:700;background:rgba(43,36,68,.08);}
.main-nav a.is-active::after{transform:scaleX(1);background:var(--accent);}
.nav-mobile-cta{display:none;}
.header__cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--primary);font-size:1.05rem;cursor:pointer;
}

/* ===== 按钮 / 标签 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:.95rem;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--sm{min-height:42px;padding:0 22px;font-size:.9rem;}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(43,36,68,.22);}
.btn--primary:hover{background:var(--primary-600);color:#fff;box-shadow:0 14px 32px rgba(43,36,68,.28);}
.btn--accent{background:var(--accent);color:#0E2B28;}
.btn--accent:hover{background:#37b3a5;color:#0E2B28;}
.btn--ghost{background:transparent;border-color:rgba(43,36,68,.35);color:var(--primary);}
.btn--ghost:hover{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn--light{background:#fff;color:var(--primary);}
.btn--light:hover{background:var(--accent);color:#0E2B28;}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.btn--outline-light:hover{background:#fff;color:var(--primary);border-color:#fff;}
.btn--block{width:100%;}
.btn:active{transform:translateY(1px);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:.78rem;font-weight:600;letter-spacing:.02em;
  background:rgba(71,199,184,.14);color:#1F7A70;border:1px solid rgba(71,199,184,.28);
}
.tag--gold{background:rgba(230,184,92,.16);color:#8A6318;border-color:rgba(230,184,92,.35);}
.tag--ink{background:rgba(43,36,68,.08);color:var(--primary);border-color:rgba(43,36,68,.16);}

/* ===== 面包屑 ===== */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:14px 0;font-size:.85rem;color:var(--muted);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#C6C0B5;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .current{color:var(--ink-900);font-weight:600;max-width:520px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ===== 文章头部 ===== */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(circle at 12% 18%, rgba(230,184,92,.18) 0, transparent 42%),
    radial-gradient(circle at 84% 12%, rgba(71,199,184,.20) 0, transparent 45%),
    linear-gradient(rgba(20,18,31,.90),rgba(20,18,31,.94)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:64px 64px;
}
.article-hero__inner{position:relative;z-index:2;padding:64px 0 56px;max-width:900px;}
.article-hero .tag{background:rgba(71,199,184,.18);color:#8FE6DA;border-color:rgba(71,199,184,.4);}
.article-hero h1{
  color:#fff;margin:16px 0 16px;
  font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.28;font-weight:800;letter-spacing:.01em;
}
.article-hero .lead{color:rgba(255,255,255,.78);font-size:1.0625rem;line-height:1.8;margin:0 0 22px;max-width:760px;}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.875rem;color:rgba(255,255,255,.66);}
.meta-row span{display:inline-flex;align-items:center;gap:8px;}
.meta-row i{color:var(--accent);}

/* ===== 主体布局 ===== */
.main-wrap{padding:56px 0 88px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;}
.article-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:40px 44px;
}
.article-body{max-width:var(--read);font-size:1.0625rem;line-height:1.9;color:#26232F;}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  position:relative;padding-left:18px;margin:2.2rem 0 1rem;
  font-size:clamp(1.3rem,2.1vw,1.7rem);line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;bottom:.34em;width:4px;border-radius:999px;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
}
.article-body h3{margin:1.8rem 0 .8rem;font-size:1.2rem;line-height:1.45;}
.article-body h4{margin:1.4rem 0 .6rem;font-size:1.05rem;}
.article-body p{margin:0 0 1.15em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--accent);font-weight:700;}
.article-body img{border-radius:16px;margin:1.6rem auto;box-shadow:var(--shadow);}
.article-body a{color:#1F7A70;border-bottom:1px dashed rgba(31,122,112,.45);}
.article-body a:hover{color:var(--primary);border-bottom-color:var(--primary);}
.article-body blockquote{
  margin:1.6rem 0;padding:18px 22px;border-left:4px solid var(--accent);
  background:rgba(71,199,184,.08);border-radius:0 14px 14px 0;color:#2C4A46;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body figure{margin:1.6rem 0;}
.article-body figcaption{text-align:center;font-size:.85rem;color:var(--muted);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6rem 0;font-size:.94rem;}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left;}
.article-body th{background:#F2EFE9;color:var(--ink-900);font-weight:700;}
.article-body code{background:#F2EFE9;border-radius:6px;padding:2px 6px;font-size:.9em;}
.article-body hr{border:none;border-top:1px solid var(--border);margin:2rem 0;}

.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--border);border-radius:var(--radius);
  background:#FBF9F5;
}
.empty-state i{font-size:2rem;color:var(--accent-2);}
.empty-state h3{margin:16px 0 8px;font-size:1.25rem;}
.empty-state p{color:var(--muted);margin:0 0 20px;}

/* ===== 侧栏 ===== */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 22px 24px;}
.side-card h3{font-size:1rem;margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--accent);font-size:.9rem;}
.toc-list{list-style:none;margin:0;padding:0;max-height:320px;overflow:auto;}
.toc-list li{margin:0;}
.toc-list a{display:block;padding:7px 10px;border-radius:9px;font-size:.9rem;color:#4B465C;line-height:1.6;border-left:2px solid transparent;}
.toc-list a:hover{background:rgba(43,36,68,.06);color:var(--primary);}
.toc-list a.is-current{background:rgba(71,199,184,.12);color:#1F7A70;border-left-color:var(--accent);font-weight:600;}
.toc-item--sub a{padding-left:22px;font-size:.86rem;color:#6A6678;}
.side-links{list-style:none;margin:0;padding:0;}
.side-links li+li{border-top:1px solid var(--border);}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;font-size:.94rem;color:#413C55;}
.side-links a:hover{color:var(--accent);}
.side-links a i{font-size:.75rem;color:#B9B3A8;}
.side-cta{
  background:linear-gradient(150deg,var(--primary),var(--ink-900));
  color:#fff;border:none;position:relative;overflow:hidden;
}
.side-cta h3{color:#fff;}
.side-cta p{color:rgba(255,255,255,.72);font-size:.9rem;margin:0 0 16px;}
.side-cta::after{
  content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(230,184,92,.35),transparent 68%);
}

/* ===== 相关推荐 ===== */
.related{padding:0 0 88px;}
.section-head{margin-bottom:28px;}
.section-head .tag{margin-bottom:12px;}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.3;}
.section-head p{color:var(--muted);margin:10px 0 0;max-width:680px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDE9E1;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card__media img{transform:scale(1.05);}
.card__badge{position:absolute;left:14px;top:14px;}
.card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__body h3{font-size:1.05rem;line-height:1.5;}
.card__body p{color:var(--muted);font-size:.9rem;margin:0;line-height:1.75;}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.82rem;color:#98928A;}
.card__foot a{font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.card__foot a:hover{color:var(--accent);}

/* ===== CTA 表单 ===== */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(circle at 82% 20%, rgba(71,199,184,.22) 0, transparent 46%),
    linear-gradient(150deg,#1B1830,var(--ink-900));
  padding:76px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.4;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:72px 72px;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.cta-copy h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.3;margin:14px 0 14px;}
.cta-copy p{color:rgba(255,255,255,.76);max-width:520px;}
.cta-points{list-style:none;padding:0;margin:22px 0 0;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.82);font-size:.94rem;margin-bottom:10px;}
.cta-points i{color:var(--accent-2);margin-top:6px;font-size:.8rem;}
.form-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:28px;color:var(--text);}
.form-card h3{font-size:1.1rem;margin-bottom:6px;}
.form-card .hint{font-size:.85rem;color:var(--muted);margin:0 0 18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:.85rem;font-weight:600;color:#413C55;margin-bottom:7px;}
.field input,.field textarea,.field select{
  width:100%;min-height:48px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:#FCFBF8;padding:12px 14px;font-size:.94rem;color:var(--text);
  font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(71,199,184,.18);background:#fff;}
.form-note{font-size:.78rem;color:#98928A;margin:12px 0 0;}
.form-msg{margin-top:12px;font-size:.86rem;font-weight:600;color:var(--success);display:none;}
.form-msg.is-on{display:block;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:.92rem;}
.site-footer .brand{color:#fff;margin-bottom:14px;}
.site-footer .brand:hover{color:#fff;}
.site-footer h4{color:#fff;font-size:.98rem;margin:0 0 16px;letter-spacing:.04em;}
.footer-col{margin-bottom:34px;}
.footer-brand p{color:rgba(255,255,255,.6);line-height:1.85;margin:0;max-width:360px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:10px;color:rgba(255,255,255,.62);}
.footer-list a{color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:12px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.82rem;color:rgba(255,255,255,.5);
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header__cta{display:none;}
  .main-nav{
    position:fixed;inset:72px 0 0 0;background:#fff;padding:22px 24px 32px;
    transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
    border-top:1px solid var(--border);z-index:55;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{padding:14px 12px;font-size:1rem;border-bottom:1px solid var(--border);border-radius:0;}
  .main-nav a::after{display:none;}
  .nav-mobile-cta{display:block;margin-top:20px;}
  .nav-mobile-cta a{border-bottom:none;}
  .article-card{padding:30px 24px;}
  .article-hero__inner{padding:48px 0 42px;}
}
@media (max-width:768px){
  body{font-size:1rem;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .main-wrap{padding:36px 0 64px;}
  .card-grid{grid-template-columns:1fr;}
  .article-body{font-size:1rem;line-height:1.9;}
  .cta-band{padding:56px 0;}
  .related{padding-bottom:64px;}
  .article-hero .lead{font-size:1rem;}
}
@media (max-width:520px){
  .header__inner{min-height:64px;}
  .main-nav{inset:64px 0 0 0;}
  .article-card{padding:24px 18px;border-radius:14px;}
  .article-hero h1{font-size:1.5rem;}
  .btn{width:100%;padding:0 18px;}
  .btn--sm{width:auto;}
  .form-card{padding:22px 18px;}
  .crumb .current{max-width:200px;}
}

/* roulang page: category1 */
:root{
  --ink-900:#14121F;
  --ink-800:#211D31;
  --primary:#2B2444;
  --primary-600:#3A315E;
  --accent:#47C7B8;
  --accent-2:#E6B85C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --border:#E6E1D8;
  --text:#1F1D2B;
  --muted:#6A6678;
  --success:#3E9B6B;
  --warning:#D98C3F;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(20,18,31,.06);
  --shadow-lg:0 16px 40px rgba(20,18,31,.12);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --space-7:96px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(71,199,184,.35);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:.2px}
h1{font-size:clamp(2rem,5vw,4rem);line-height:1.15;font-weight:800}
h2{font-size:clamp(1.75rem,3vw,2.75rem);line-height:1.2}
h3{font-size:1.5rem;line-height:1.35}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}

.grid-container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:var(--space-7) 0}
.section--tight{padding:var(--space-6) 0}
.section--alt{background:#F0EDE6}
.section--dark{background:var(--ink-900);color:rgba(255,255,255,.86)}
.section--dark h2,.section--dark h3{color:#fff}

.section-head{max-width:780px;margin-bottom:var(--space-5)}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8125rem;letter-spacing:.16em;color:var(--primary-600);text-transform:uppercase;margin-bottom:14px;font-weight:600}
.section-head .eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);display:inline-block}
.section-head h2{margin-bottom:16px}
.section-head p{color:var(--muted);font-size:1.0625rem;max-width:720px;margin:0}
.section-head--center p{margin-left:auto;margin-right:auto}
.section--dark .section-head .eyebrow{color:var(--accent)}
.section--dark .section-head p{color:rgba(255,255,255,.72)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.94);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,18,31,.08);background:rgba(255,255,255,.96)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.125rem;color:var(--ink-900);letter-spacing:.4px}
.brand__mark{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
  color:var(--accent-2);font-size:.8125rem;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.brand__text{white-space:nowrap}
.main-nav ul{display:flex;align-items:center;gap:28px}
.main-nav a{position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;color:#3A3648;font-weight:500}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--primary);font-weight:700}
.main-nav a.is-active::after{transform:scaleX(1);background:var(--primary)}
.header__cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--primary);
  font-size:1.0625rem;cursor:pointer;align-items:center;justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:999px;
  font-size:.9688rem;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.btn--sm{height:42px;padding:0 20px;font-size:.9063rem}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--accent);color:var(--ink-900);box-shadow:0 12px 28px rgba(71,199,184,.28)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--ink-900);border-color:#fff}
.btn--outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn--outline:hover{background:var(--primary);color:#fff}
.btn--link{padding:0;height:auto;color:var(--primary);font-weight:600}
.btn--link::after{content:"\2192";margin-left:6px;transition:transform .22s ease}
.btn--link:hover{color:var(--accent)}
.btn--link:hover::after{transform:translateX(4px)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:.8125rem;font-weight:600;line-height:1.6;
}
.tag--accent{background:rgba(71,199,184,.14);color:#1F7A70}
.tag--gold{background:rgba(230,184,92,.2);color:#8A6115}
.tag--ink{background:rgba(43,36,68,.1);color:var(--primary)}
.tag--light{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--ink-900) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:104px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 20%, rgba(71,199,184,.18), transparent 42%),
    radial-gradient(circle at 82% 8%, rgba(230,184,92,.16), transparent 38%),
    linear-gradient(118deg, rgba(20,18,31,.95) 0%, rgba(43,36,68,.9) 52%, rgba(20,18,31,.82) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.35) 1px, transparent 1px);
  background-size:56px 56px;
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero__label{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero h1{color:#fff;margin-bottom:20px;max-width:15em}
.hero h1 .hl{color:var(--accent-2)}
.hero__sub{font-size:1.125rem;line-height:1.85;color:rgba(255,255,255,.8);max-width:36em;margin-bottom:32px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero__meta{display:flex;flex-wrap:wrap;gap:24px;font-size:.875rem;color:rgba(255,255,255,.68)}
.hero__meta span{display:inline-flex;align-items:center;gap:8px}
.hero__meta i{color:var(--accent)}
.hero__panel{
  background:linear-gradient(160deg,rgba(43,36,68,.95),rgba(20,18,31,.95));
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  box-shadow:0 24px 60px rgba(0,0,0,.32);
}
.hero__panel h3{color:#fff;font-size:1.125rem;margin-bottom:6px}
.hero__panel .panel-sub{font-size:.875rem;color:rgba(255,255,255,.6);margin-bottom:22px}
.hero__list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.14);
}
.hero__list li:last-child{border-bottom:none;padding-bottom:0}
.hero__list i{color:var(--accent);font-size:.9375rem;margin-top:.45em}
.hero__list strong{display:block;color:#fff;font-size:.9688rem;font-weight:600}
.hero__list span{font-size:.8438rem;color:rgba(255,255,255,.62);line-height:1.7}

/* ---------- 服务矩阵 ---------- */
.svc-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:36px 0}
.svc-row + .svc-row{border-top:1px solid var(--border)}
.svc-row--reverse .svc-media{order:2}
.svc-media img{border-radius:16px;box-shadow:var(--shadow);aspect-ratio:16/10;object-fit:cover;width:100%}
.svc-body .tag{margin-bottom:14px}
.svc-body h3{margin-bottom:14px;font-size:1.625rem}
.svc-body p{color:var(--muted)}
.svc-points{margin-top:22px;display:grid;gap:10px}
.svc-points li{display:flex;gap:10px;font-size:.9375rem;color:#3E3A4E}
.svc-points i{color:var(--accent);margin-top:.5em;font-size:.8125rem}

/* ---------- 流程时间线 ---------- */
.flow{position:relative;display:grid;gap:0;max-width:900px}
.flow__item{
  display:grid;grid-template-columns:96px 1fr;gap:28px;padding:28px 0;position:relative;
}
.flow__item:not(:last-child){border-bottom:1px solid var(--border)}
.flow__step{
  width:64px;height:64px;border-radius:20px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:800;font-size:1.125rem;
  box-shadow:0 12px 26px rgba(43,36,68,.22);
}
.flow__body h3{margin-bottom:8px;font-size:1.25rem}
.flow__body p{color:var(--muted);margin:0}
.flow__time{display:inline-block;margin-top:10px;font-size:.8125rem;color:var(--primary-600);font-weight:600}

/* ---------- 数据区 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:8px 28px;border-right:1px solid rgba(255,255,255,.14)}
.stat:first-child{padding-left:0}
.stat:last-child{border-right:none}
.stat__num{font-size:2.5rem;font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.5px}
.stat__num small{font-size:1rem;font-weight:600;color:var(--accent);margin-left:6px}
.stat__label{margin-top:8px;font-size:.875rem;color:rgba(255,255,255,.66)}

/* ---------- 交付清单 ---------- */
.deliver{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start}
.deliver h2{margin-bottom:18px}
.deliver p{color:var(--muted)}
.check-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);
}
.check-card h3{font-size:1.125rem;margin-bottom:18px}
.check-list{display:grid;gap:14px}
.check-list li{display:flex;gap:12px;font-size:.9688rem;color:#3E3A4E;line-height:1.75}
.check-list i{color:var(--success);margin-top:.45em;font-size:.875rem}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease}
.faq-item:hover{border-color:#D8D1C4;box-shadow:var(--shadow)}
.faq-item.is-open{box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:transparent;border:none;cursor:pointer;
  font-family:inherit;font-size:1.0625rem;font-weight:600;color:var(--ink-900);text-align:left;
}
.faq-q:hover{color:var(--primary-600)}
.faq-q i{
  flex:none;width:30px;height:30px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(43,36,68,.08);color:var(--primary);font-size:.75rem;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a__inner{padding:0 26px 24px;color:var(--muted);font-size:1rem;line-height:1.85;border-top:1px dashed var(--border);padding-top:18px;margin:0 26px 0;padding-left:0;padding-right:0}

/* ---------- CTA / 表单 ---------- */
.cta{
  position:relative;overflow:hidden;color:#fff;
  background:var(--ink-900) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:var(--space-7) 0;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(20,18,31,.95),rgba(43,36,68,.88));
}
.cta__inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta__text h2{color:#fff;margin-bottom:18px}
.cta__text p{color:rgba(255,255,255,.76);max-width:32em}
.cta__facts{display:grid;gap:14px;margin-top:28px}
.cta__facts li{display:flex;gap:12px;font-size:.9375rem;color:rgba(255,255,255,.82)}
.cta__facts i{color:var(--accent);margin-top:.45em;font-size:.8125rem}
.form-card{
  background:var(--surface);border-radius:var(--radius-lg);padding:32px;
  box-shadow:0 24px 60px rgba(0,0,0,.28);color:var(--text);
}
.form-card h3{font-size:1.25rem;margin-bottom:6px}
.form-card .form-hint{font-size:.875rem;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.875rem;font-weight:600;color:#3E3A4E;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:.9688rem;color:var(--text);
  background:#FBFAF7;border:1px solid var(--border);border-radius:12px;
  padding:14px 16px;line-height:1.6;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input,.field select{height:50px;padding-top:0;padding-bottom:0}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--accent);background:#fff;
  box-shadow:0 0 0 4px rgba(71,199,184,.12);outline:none;
}
.form-card .btn{width:100%;margin-top:6px}
.form-note{margin-top:14px;font-size:.8125rem;color:var(--muted);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.68);padding:var(--space-6) 0 28px;font-size:.9375rem}
.footer-col{margin-bottom:32px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{color:rgba(255,255,255,.6);font-size:.9063rem;line-height:1.8;max-width:32em}
.site-footer h4{font-size:.9375rem;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-list{display:grid;gap:10px}
.footer-list li{font-size:.9063rem;color:rgba(255,255,255,.62)}
.footer-list a{color:rgba(255,255,255,.68)}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:20px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.8438rem;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero__inner{grid-template-columns:1fr;gap:40px}
  .hero{padding:80px 0 72px}
  .svc-row{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .svc-row--reverse .svc-media{order:0}
  .deliver{grid-template-columns:1fr;gap:36px}
  .cta__inner{grid-template-columns:1fr;gap:40px}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .stat:nth-child(2){border-right:none}
  .stat:nth-child(3){padding-left:0}
  .section{padding:64px 0}
}
@media (max-width:900px){
  .main-nav{
    position:fixed;left:0;right:0;top:72px;
    background:#fff;border-bottom:1px solid var(--border);
    box-shadow:0 20px 40px rgba(20,18,31,.12);
    padding:8px 24px 24px;display:none;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .main-nav.is-open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{padding:16px 0;border-bottom:1px solid var(--border);font-size:1rem}
  .main-nav a::after{display:none}
  .nav-toggle{display:inline-flex}
  .header__cta .btn{display:none}
}
@media (max-width:768px){
  .grid-container{padding:0 16px}
  .section{padding:48px 0}
  .hero{padding:64px 0 56px}
  .hero__sub{font-size:1rem}
  .section-head{margin-bottom:36px}
  .flow__item{grid-template-columns:1fr;gap:16px}
  .flow__step{width:52px;height:52px;border-radius:16px;font-size:1rem}
  .stat{padding:8px 20px}
  .check-card,.form-card,.hero__panel{padding:24px}
  .faq-q{padding:18px 20px;font-size:1rem}
  .faq-a__inner{margin:0 20px}
}
@media (max-width:520px){
  h1{font-size:1.875rem}
  .hero__actions .btn,.cta .btn{width:100%}
  .stats{grid-template-columns:1fr}
  .stat{border-right:none;padding-left:0;padding-right:0;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:20px}
  .stat:last-child{border-bottom:none;padding-bottom:0}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --ink-900:#14121F;
  --ink-800:#211D31;
  --primary:#2B2444;
  --primary-600:#3A315E;
  --accent:#47C7B8;
  --accent-2:#E6B85C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --border:#E6E1D8;
  --text:#1F1D2B;
  --muted:#6A6678;
  --success:#3E9B6B;
  --warning:#D98C3F;
  --radius-s:12px;
  --radius-m:18px;
  --radius-l:26px;
  --shadow-1:0 8px 24px rgba(20,18,31,.06);
  --shadow-2:0 16px 40px rgba(20,18,31,.12);
  --gutter:24px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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:1.0625rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:16px;}
a{color:var(--primary);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--accent);}
button,input,textarea,select{font-family:inherit;font-size:1rem;}
h1,h2,h3,h4{margin:0 0 1rem;color:var(--ink-900);letter-spacing:.01em;}
h1{font-size:clamp(2rem,5vw,4rem);line-height:1.15;font-weight:800;}
h2{font-size:clamp(1.75rem,3vw,2.75rem);line-height:1.2;font-weight:700;}
h3{font-size:1.5rem;line-height:1.35;font-weight:700;}
h4{font-size:1.125rem;line-height:1.4;font-weight:700;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(71,199,184,.35);border-radius:8px;}

.grid-container{max-width:1200px;margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);}
.narrow{max-width:820px;}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--ink-900);
  color:#EDEAF4;
  font-size:.875rem;
  letter-spacing:.02em;
}
.topbar__inner{
  display:flex;align-items:center;justify-content:center;gap:14px;
  min-height:38px;padding:6px 16px;text-align:center;flex-wrap:wrap;
}
.topbar__dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(71,199,184,.18);display:inline-block;
}
.topbar__badge{
  background:rgba(230,184,92,.16);color:var(--accent-2);
  border:1px solid rgba(230,184,92,.4);
  padding:1px 10px;border-radius:999px;font-size:.8125rem;
}
.topbar a{color:#EDEAF4;border-bottom:1px solid rgba(237,234,244,.4);}
.topbar a:hover{color:var(--accent);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(20,18,31,.09);}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:72px;gap:18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink-900);}
.brand:hover{color:var(--ink-900);}
.brand__mark{
  width:36px;height:36px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:var(--accent-2);font-size:.95rem;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
}
.brand__text{font-size:1.125rem;letter-spacing:.04em;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;padding:10px 14px;border-radius:10px;
  color:var(--ink-800);font-size:.975rem;font-weight:500;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s ease;border-radius:2px;
}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:700;background:rgba(43,36,68,.06);}
.main-nav a.is-active::after{transform:scaleX(1);}
.header__cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:var(--surface);color:var(--ink-900);
  font-size:1.1rem;cursor:pointer;transition:background .25s ease;
}
.nav-toggle:hover{background:#F1EDE4;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:999px;
  font-weight:700;font-size:.975rem;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s ease,color .25s ease,transform .18s ease,box-shadow .25s ease,border-color .25s ease;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(43,36,68,.22);}
.btn--primary:hover{background:var(--accent);color:#0F2020;box-shadow:0 14px 30px rgba(71,199,184,.32);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn--ghost:hover{background:var(--primary);color:#fff;}
.btn--light{background:#fff;color:var(--primary);}
.btn--light:hover{background:var(--accent);color:#0F2020;}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn--sm{height:42px;padding:0 20px;font-size:.9rem;}
.btn--block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--primary);}
.link-arrow i{transition:transform .25s ease;font-size:.85rem;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--ink-900);color:#E9E6F0;}
.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}
.section--surface{background:var(--surface);}
.section--inkgr{background:var(--ink-800);color:#E9E6F0;}
.section--inkgr h2,.section--inkgr h3{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:700;letter-spacing:.14em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.section--dark .eyebrow,.section--inkgr .eyebrow{color:var(--accent);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head p{color:var(--muted);font-size:1.0625rem;margin-top:12px;}
.section--dark .section-head p,.section--inkgr .section-head p{color:#B9B4CA;}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:#F2F0F7;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(115deg,rgba(20,18,31,.94) 0%,rgba(20,18,31,.82) 45%,rgba(33,29,49,.72) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(2px 2px at 12% 24%,rgba(255,255,255,.75),transparent 60%),
    radial-gradient(1.6px 1.6px at 32% 68%,rgba(230,184,92,.7),transparent 60%),
    radial-gradient(1.6px 1.6px at 62% 18%,rgba(255,255,255,.6),transparent 60%),
    radial-gradient(2px 2px at 84% 52%,rgba(71,199,184,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 74% 84%,rgba(255,255,255,.5),transparent 60%);
  opacity:.9;
}
.hero__inner{
  position:relative;z-index:2;
  padding:104px 0 96px;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;align-items:center;
}
.hero__badge{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(71,199,184,.14);border:1px solid rgba(71,199,184,.42);
  color:#9EE6DC;font-size:.8125rem;font-weight:600;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero h1 span{color:var(--accent-2);}
.hero__sub{
  font-size:1.125rem;color:#C9C4D8;max-width:560px;margin-bottom:14px;
}
.hero__note{
  font-size:.9375rem;color:#9E99B3;margin-bottom:32px;
  display:flex;flex-wrap:wrap;gap:8px 20px;
}
.hero__note i{color:var(--accent);margin-right:6px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero__panel{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-l);
  padding:18px;
}
.hero__panel img{border-radius:var(--radius-m);aspect-ratio:16/10;object-fit:cover;width:100%;}
.hero__panel-foot{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  color:#DCD8E8;border-radius:999px;
  font-size:.8125rem;padding:5px 12px;
}

/* ---------- 场景标签 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  border:1px solid var(--border);background:var(--surface);
  color:var(--ink-800);font-size:.9375rem;font-weight:600;
  box-shadow:var(--shadow-1);transition:transform .22s ease,border-color .22s ease,color .22s ease;
}
.tag i{color:var(--accent);}
.tag:hover{transform:translateY(-3px);border-color:var(--accent);color:var(--accent);}
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-m);padding:26px;
  box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(71,199,184,.5);}
.scene-card__icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(43,36,68,.07);color:var(--primary);font-size:1.05rem;margin-bottom:16px;
}
.scene-card h3{font-size:1.1875rem;margin-bottom:8px;}
.scene-card p{color:var(--muted);font-size:.975rem;}

/* ---------- 方案切换卡组 ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.tab-btn{
  height:46px;padding:0 24px;border-radius:999px;
  border:1px solid var(--border);background:var(--surface);
  color:var(--ink-800);font-weight:700;font-size:.9375rem;cursor:pointer;
  transition:all .25s ease;
}
.tab-btn:hover{border-color:var(--primary);color:var(--primary);}
.tab-btn.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(43,36,68,.2);}
.tab-panel{display:none;}
.tab-panel.is-active{display:block;animation:fadeUp .45s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.plan-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.plan-card__media{position:relative;overflow:hidden;}
.plan-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.plan-card__tag{
  position:absolute;left:16px;top:16px;
  background:rgba(20,18,31,.78);color:#fff;font-size:.78rem;font-weight:600;
  padding:4px 12px;border-radius:999px;letter-spacing:.04em;
}
.plan-card__body{padding:24px;display:flex;flex-direction:column;flex:1;}
.plan-card h3{font-size:1.25rem;margin-bottom:10px;}
.plan-card p{color:var(--muted);font-size:.95rem;margin-bottom:16px;}
.plan-list{margin-bottom:20px;}
.plan-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:.9375rem;color:var(--ink-800);padding:5px 0;
}
.plan-list i{color:var(--accent);font-size:.8rem;margin-top:.55em;}
.plan-card__meta{
  margin-top:auto;padding-top:16px;border-top:1px dashed var(--border);
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
}
.plan-card__meta span{font-size:.875rem;color:var(--muted);}

/* ---------- 数据条 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;border-top:1px solid rgba(255,255,255,.14);
  border-bottom:1px solid rgba(255,255,255,.14);
}
.stat{
  padding:40px 26px;border-right:1px solid rgba(255,255,255,.12);
}
.stat:last-child{border-right:none;}
.stat__num{
  font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1;
  color:#fff;letter-spacing:.01em;margin-bottom:10px;
}
.stat__num em{font-style:normal;color:var(--accent);font-size:.55em;margin-left:4px;}
.stat__label{font-size:.9375rem;color:#B5B0C6;}

/* ---------- 流程时间线 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;position:relative;}
.flow__item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);
  padding:24px 20px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.flow__item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.flow__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:var(--accent-2);
  font-weight:800;font-size:.9rem;margin-bottom:14px;
}
.flow__item h3{font-size:1.0625rem;margin-bottom:6px;}
.flow__item p{font-size:.9rem;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--border);}
.faq__item{border-bottom:1px solid var(--border);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:24px 4px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:1.0625rem;font-weight:700;color:var(--ink-900);
  transition:color .25s ease,background .25s ease;
}
.faq__q:hover{color:var(--accent);background:rgba(43,36,68,.03);}
.faq__q i{color:var(--primary);transition:transform .3s ease;flex-shrink:0;}
.faq__item.is-open .faq__q i{transform:rotate(45deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq__a p{padding:0 4px 26px;color:var(--muted);max-width:820px;}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  background:
    linear-gradient(120deg,rgba(20,18,31,.95),rgba(43,36,68,.9)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  color:#EDEAF4;border-radius:var(--radius-l);padding:56px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:start;
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:#C4BFD4;}
.cta-points{margin-top:26px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#C4BFD4;font-size:.95rem;padding:5px 0;}
.cta-points i{color:var(--accent);font-size:.8rem;margin-top:.55em;}
.form-card{
  background:var(--surface);border-radius:var(--radius-m);
  padding:28px;border:1px solid var(--border);box-shadow:var(--shadow-2);
}
.form-card h3{font-size:1.125rem;margin-bottom:6px;}
.form-card .form-hint{color:var(--muted);font-size:.875rem;margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.875rem;font-weight:600;color:var(--ink-800);margin-bottom:7px;}
.field input,.field textarea,.field select{
  width:100%;height:50px;padding:0 14px;border-radius:var(--radius-s);
  border:1px solid var(--border);background:#FCFBF8;color:var(--text);
  transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:var(--accent);background:#fff;outline:none;
  box-shadow:0 0 0 3px rgba(71,199,184,.18);
}
.form-note{font-size:.8125rem;color:var(--muted);margin-top:12px;text-align:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#B8B3C7;padding:72px 0 28px;font-size:.9375rem;}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:18px;letter-spacing:.04em;}
.footer-col{margin-bottom:32px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand__text{color:#fff;}
.footer-brand p{color:#9E99B3;font-size:.9375rem;max-width:340px;}
.footer-list li{padding:6px 0;}
.footer-list a{color:#B8B3C7;}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:.875rem;color:#8D88A0;
}

/* ---------- 移动端 ---------- */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .hero__inner{grid-template-columns:1fr;padding:80px 0 72px;gap:40px;}
  .scene-grid,.plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat{border-bottom:1px solid rgba(255,255,255,.12);}
  .stat:nth-child(2n){border-right:none;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
}
@media (max-width:860px){
  .main-nav{
    display:none;position:fixed;inset:72px 0 0 0;z-index:55;
    background:var(--surface);padding:26px 24px 40px;overflow-y:auto;
    border-top:1px solid var(--border);
  }
  .main-nav.is-open{display:block;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{
    display:block;padding:16px 12px;font-size:1.0625rem;
    border-bottom:1px solid var(--border);border-radius:0;
  }
  .main-nav a::after{display:none;}
  .main-nav a.is-active{background:rgba(43,36,68,.05);}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header__cta .btn{display:none;}
}
@media (max-width:640px){
  :root{--gutter:16px;}
  .section{padding:48px 0;}
  .hero__inner{padding:64px 0 56px;}
  .hero__actions .btn{width:100%;}
  .scene-grid,.plan-grid,.flow{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;}
  .stat{border-right:none;padding:28px 20px;}
  .cta-band{padding:28px;}
  .tabs{gap:8px;}
  .tab-btn{height:42px;padding:0 16px;font-size:.875rem;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category3 */
:root{
  --ink-900:#14121F;
  --ink-800:#211D31;
  --primary:#2B2444;
  --primary-600:#3A315E;
  --accent:#47C7B8;
  --accent-2:#E6B85C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --border:#E6E1D8;
  --text:#1F1D2B;
  --muted:#6A6678;
  --success:#3E9B6B;
  --warning:#D98C3F;
  --danger:#C95C5C;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow:0 8px 24px rgba(20,18,31,.06);
  --shadow-hover:0 16px 40px rgba(20,18,31,.12);
  --space-section:96px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:.01em;}
h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.15;font-weight:800;}
h2{font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.2;font-weight:700;}
h3{font-size:1.5rem;line-height:1.35;font-weight:700;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(71,199,184,.35);outline-offset:2px;border-radius:6px;}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-container.narrow{max-width:820px;}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--ink-900);
  color:#EDEAF6;
  font-size:.8125rem;
  letter-spacing:.02em;
}
.topbar__inner{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar__left{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.topbar .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(71,199,184,.18);
  display:inline-block;
}
.topbar__tag{
  border:1px solid rgba(230,184,92,.5);
  color:var(--accent-2);
  border-radius:999px;
  padding:1px 10px;
  font-size:.75rem;
}
.topbar__close{
  background:transparent;border:0;color:#B9B4CC;font-size:.95rem;line-height:1;
  padding:4px 6px;border-radius:6px;
}
.topbar__close:hover{color:#fff;background:rgba(255,255,255,.08);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(20,18,31,.08);}
.header__inner{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink-900);font-size:1.125rem;}
.brand__mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
  color:var(--accent-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.95rem;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.brand__text{letter-spacing:.02em;}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:.95rem;
  color:var(--text);
  border-radius:999px;
}
.main-nav a::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:6px;
  height:2px;border-radius:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:700;background:rgba(43,36,68,.06);}
.main-nav a.is-active::after{transform:scaleX(1);background:var(--accent);}
.header__cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--primary);
  font-size:1.05rem;
}
.nav-toggle:hover{border-color:var(--primary);}
.nav-drawer-cta{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:.9688rem;font-weight:600;
  letter-spacing:.01em;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .12s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn--sm{min-height:42px;padding:0 20px;font-size:.9063rem;}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(43,36,68,.18);}
.btn--primary:hover{background:var(--accent);color:var(--ink-900);box-shadow:0 14px 30px rgba(71,199,184,.28);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{border-color:rgba(43,36,68,.35);color:var(--primary);background:transparent;}
.btn--ghost:hover{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn--light{background:#fff;color:var(--primary);}
.btn--light:hover{background:var(--accent);color:var(--ink-900);}
.btn--outline-light{border-color:rgba(255,255,255,.45);color:#fff;}
.btn--outline-light:hover{background:#fff;color:var(--primary);border-color:#fff;}
.btn--link{
  min-height:auto;padding:0;background:none;border:0;color:var(--primary);
  font-weight:600;font-size:.9375rem;
}
.btn--link i{margin-left:6px;transition:transform .2s ease;}
.btn--link:hover{color:var(--accent);}
.btn--link:hover i{transform:translateX(4px);}

/* ---------- 通用板块 ---------- */
.section{padding-top:var(--space-section);padding-bottom:var(--space-section);}
.section--tight{padding-top:72px;padding-bottom:72px;}
.section--paper{background:var(--surface);}
.section--dark{background:var(--ink-900);color:#E9E6F2;}
.section--dark h2,.section--dark h3{color:#fff;}
.section__head{max-width:780px;margin-bottom:48px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:700;letter-spacing:.16em;
  color:var(--primary-600);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.section--dark .eyebrow{color:var(--accent);}
.lead{font-size:1.0625rem;color:var(--muted);line-height:1.9;}
.section--dark .lead{color:#BEB9CF;}
.divider{height:1px;background:var(--border);border:0;margin:0;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:.8125rem;font-weight:600;
  background:rgba(71,199,184,.14);color:#1F6F66;
}
.badge--gold{background:rgba(230,184,92,.2);color:#8A6417;}
.badge--ink{background:rgba(43,36,68,.1);color:var(--primary);}
.badge--line{background:transparent;border:1px solid var(--border);color:var(--muted);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:
    linear-gradient(120deg,rgba(20,18,31,.94) 0%,rgba(33,29,49,.88) 52%,rgba(20,18,31,.72) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#F2EFFA;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 26%,rgba(255,255,255,.55) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 38% 68%,rgba(255,255,255,.4) 50%,transparent 51%),
    radial-gradient(1.8px 1.8px at 66% 22%,rgba(230,184,92,.55) 50%,transparent 51%),
    radial-gradient(1.3px 1.3px at 82% 58%,rgba(255,255,255,.4) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 26% 84%,rgba(71,199,184,.5) 50%,transparent 51%);
  opacity:.85;pointer-events:none;
}
.hero__inner{position:relative;z-index:2;padding-top:88px;padding-bottom:88px;}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;}
.hero h1{color:#fff;margin-bottom:20px;}
.hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(71,199,184,.35) 62%);
}
.hero__sub{font-size:1.0625rem;color:#C9C4DA;max-width:600px;line-height:1.9;}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero__note{margin-top:22px;font-size:.875rem;color:#A9A3BE;display:flex;align-items:center;gap:8px;}
.hero__note i{color:var(--accent);}

.hero-panel{
  background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:28px;
}
.hero-panel__title{
  font-size:.8125rem;letter-spacing:.16em;font-weight:700;color:var(--accent);
  text-transform:uppercase;margin-bottom:18px;
}
.hero-panel__list{display:grid;gap:14px;}
.hero-panel__list li{
  display:flex;gap:12px;align-items:flex-start;
  padding-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.14);
  font-size:.9375rem;color:#D8D4E6;
}
.hero-panel__list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-panel__list i{color:var(--accent-2);margin-top:5px;}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-bottom:36px;
  padding-bottom:20px;
  border-bottom:1px solid var(--border);
}
.filter-btn{
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text);
  border-radius:999px;
  padding:9px 20px;
  font-size:.9063rem;
  font-weight:600;
  transition:all .2s ease;
}
.filter-btn:hover{border-color:var(--primary);color:var(--primary);}
.filter-btn.is-active{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- 案例卡 ---------- */
.case-grid{margin-top:-14px;}
.case-col{margin-bottom:28px;}
.case-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(43,36,68,.22);}
.case-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-800);}
.case-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-card:hover .case-card__media img{transform:scale(1.05);}
.case-card__tag{
  position:absolute;left:14px;top:14px;
  background:rgba(20,18,31,.72);
  color:#fff;font-size:.75rem;font-weight:600;
  padding:5px 12px;border-radius:999px;
  backdrop-filter:blur(2px);
}
.case-card__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.case-card__body h3{font-size:1.1875rem;line-height:1.45;transition:color .2s ease;}
.case-card:hover .case-card__body h3{color:var(--accent);}
.case-card__body p{color:var(--muted);font-size:.9375rem;margin:0;}
.case-card__meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:.875rem;color:var(--muted);
}
.case-card__meta strong{color:var(--ink-900);font-weight:700;}
.case-card__meta i{color:var(--accent);}

/* ---------- 数据条 ---------- */
.stats{
  background:linear-gradient(135deg,var(--primary) 0%,var(--ink-900) 100%);
  color:#fff;
  border-radius:var(--radius-lg);
  padding:48px 40px;
  position:relative;overflow:hidden;
}
.stats::after{
  content:"";position:absolute;inset:auto -60px -120px auto;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(71,199,184,.35),transparent 62%);
}
.stats__grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.stat{padding-right:20px;border-right:1px solid rgba(255,255,255,.14);}
.stat:last-child{border-right:0;padding-right:0;}
.stat__num{font-size:clamp(1.8rem,3.4vw,2.5rem);font-weight:800;line-height:1.1;color:#fff;}
.stat__num span{color:var(--accent);font-size:1.125rem;margin-left:2px;}
.stat__label{margin-top:8px;font-size:.875rem;color:#B9B4CC;line-height:1.7;}

/* ---------- 流程 ---------- */
.process{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.process__item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.process__item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.process__step{
  font-size:.8125rem;font-weight:800;letter-spacing:.14em;
  color:var(--accent);margin-bottom:12px;
}
.process__item h3{font-size:1.0625rem;margin-bottom:10px;}
.process__item p{font-size:.9375rem;color:var(--muted);margin:0;}

/* ---------- 客户反馈 ---------- */
.voices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.voice{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  display:flex;flex-direction:column;gap:16px;
}
.voice__quote{color:#E4E0F0;font-size:.9688rem;line-height:1.9;margin:0;}
.voice__from{display:flex;align-items:center;gap:12px;margin-top:auto;}
.voice__avatar{
  width:40px;height:40px;border-radius:12px;
  background:rgba(71,199,184,.18);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.9375rem;
}
.voice__name{font-size:.9375rem;font-weight:700;color:#fff;}
.voice__role{font-size:.8125rem;color:#A9A3BE;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(43,36,68,.24);}
.faq-item.is-open{box-shadow:var(--shadow);border-color:rgba(71,199,184,.5);}
.faq-item__q{
  width:100%;background:none;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:1.0313rem;font-weight:600;color:var(--ink-900);
}
.faq-item__q .ico{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(43,36,68,.08);color:var(--primary);
  font-size:.8125rem;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-item__q .ico{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item__a p{padding:0 24px 22px;margin:0;color:var(--muted);font-size:.9688rem;line-height:1.9;}

/* ---------- CTA / 表单 ---------- */
.cta-band{
  background:
    linear-gradient(120deg,rgba(20,18,31,.96),rgba(43,36,68,.9)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#EFECF7;
  border-radius:var(--radius-lg);
  padding:56px 48px;
}
.cta-band__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:start;}
.cta-band h2{color:#fff;margin-bottom:16px;}
.cta-band p{color:#C3BED4;}
.cta-points{display:grid;gap:12px;margin-top:24px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:#D6D1E4;}
.cta-points i{color:var(--accent-2);margin-top:5px;}

.form-card{
  background:var(--surface);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:0 20px 46px rgba(10,8,20,.32);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.875rem;font-weight:600;color:var(--ink-900);margin-bottom:7px;}
.field input,
.field select,
.field textarea{
  width:100%;
  min-height:50px;
  padding:12px 14px;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  background:#FCFBF8;
  font-family:inherit;
  font-size:.9688rem;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;
  box-shadow:0 0 0 3px rgba(71,199,184,.18);
}
.form-card .btn{width:100%;}
.form-hint{font-size:.8125rem;color:var(--muted);margin-top:12px;line-height:1.7;}
.form-msg{
  display:none;
  margin-top:14px;padding:12px 14px;border-radius:var(--radius-md);
  font-size:.9063rem;font-weight:600;
  background:rgba(62,155,107,.12);color:#2A6E4C;
}
.form-msg.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:#B9B4CC;
  padding-top:72px;
  font-size:.9375rem;
}
.footer-col{margin-bottom:36px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand p{color:#9E99B2;font-size:.9063rem;line-height:1.9;max-width:360px;}
.site-footer h4{color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-list li{margin-bottom:10px;line-height:1.7;}
.footer-list a{color:#B9B4CC;}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:12px;
  padding-top:22px;padding-bottom:26px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.8125rem;color:#8C87A3;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--space-section:64px;}
  .hero__grid{grid-template-columns:1fr;gap:34px;}
  .hero__inner{padding-top:64px;padding-bottom:64px;}
  .stats__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .stat:nth-child(2){border-right:0;padding-right:0;}
  .process{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voices{grid-template-columns:1fr;gap:18px;}
  .cta-band__grid{grid-template-columns:1fr;gap:32px;}
}
@media screen and (max-width:900px){
  .main-nav{
    position:fixed;
    left:0;right:0;top:0;
    height:100vh;
    background:var(--surface);
    padding:96px 24px 32px;
    transform:translateY(-102%);
    transition:transform .3s ease;
    overflow-y:auto;
    box-shadow:0 20px 46px rgba(20,18,31,.2);
    z-index:70;
  }
  body.nav-open .main-nav{transform:translateY(0);}
  .main-nav ul{display:block;}
  .main-nav li{margin-bottom:6px;}
  .main-nav a{
    display:block;
    padding:15px 8px;
    font-size:1.125rem;
    border-bottom:1px solid var(--border);
    border-radius:0;
  }
  .main-nav a::after{display:none;}
  .main-nav a.is-active{background:transparent;color:var(--primary);}
  .nav-drawer-cta{display:block;margin-top:28px;}
  .nav-drawer-cta .btn{width:100%;}
  .header__cta .btn{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;position:relative;z-index:80;}
  body.nav-open .nav-toggle i::before{content:"\f00d";}
}
@media screen and (max-width:640px){
  :root{--space-section:48px;}
  body{font-size:1rem;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .topbar__inner{justify-content:flex-start;}
  .hero__inner{padding-top:52px;padding-bottom:52px;}
  .hero__actions .btn{width:100%;}
  .stats{padding:34px 22px;}
  .stats__grid{grid-template-columns:1fr;gap:22px;}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.14);padding:0 0 18px;}
  .stat:last-child{border-bottom:0;padding-bottom:0;}
  .process{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;}
  .form-card{padding:22px;}
  .section--tight{padding-top:52px;padding-bottom:52px;}
  .filter-btn{flex:1 1 auto;text-align:center;}
}

/* roulang page: category4 */
:root{
  --ink-900:#14121F;
  --ink-800:#211D31;
  --primary:#2B2444;
  --primary-600:#3A315E;
  --accent:#47C7B8;
  --accent-2:#E6B85C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --border:#E6E1D8;
  --text:#1F1D2B;
  --muted:#6A6678;
  --success:#3E9B6B;
  --warning:#D98C3F;
  --danger:#C95C5C;
  --radius:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(20,18,31,.06);
  --shadow-hover:0 16px 40px rgba(20,18,31,.12);
  --container:1200px;
  --narrow:820px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
h1,h2,h3,h4{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink-900);margin:0 0 1rem;letter-spacing:.01em;}
h1{font-size:clamp(2rem,4.6vw,3.4rem);line-height:1.15;font-weight:800;}
h2{font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.22;font-weight:700;}
h3{font-size:1.375rem;line-height:1.35;font-weight:700;}
p{margin:0 0 1.15rem;}
ul,ol{margin:0;padding:0;}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
.grid-container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.is-narrow{max-width:var(--narrow);}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--ink-900);color:#DCD7EA;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--paper{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head p{color:var(--muted);margin-bottom:0;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.82rem;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:14px;}
.eyebrow::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--accent);}
.section--dark .eyebrow{color:#8FE3D7;}

/* 顶部活动条 */
.top-bar{background:var(--ink-900);color:#E8E4F3;min-height:40px;display:flex;align-items:center;font-size:.875rem;position:relative;z-index:60;}
.top-bar__inner{display:flex;align-items:center;gap:12px;justify-content:center;position:relative;padding-top:8px;padding-bottom:8px;}
.top-bar__badge{background:rgba(230,184,92,.18);color:#F0D391;border:1px solid rgba(230,184,92,.35);border-radius:var(--radius-pill);padding:2px 12px;font-size:.78rem;font-weight:600;white-space:nowrap;}
.top-bar__text{color:#CFC9DF;text-align:center;}
.top-bar__close{position:absolute;right:24px;top:50%;transform:translateY(-50%);background:none;border:0;color:#9E98B4;cursor:pointer;padding:6px;line-height:1;border-radius:8px;}
.top-bar__close:hover{color:#fff;background:rgba(255,255,255,.08);}
.top-bar.is-hidden{display:none;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,240,.96);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,18,31,.08);border-bottom-color:var(--border);background:rgba(247,245,240,.99);}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.125rem;color:var(--ink-900);letter-spacing:.02em;}
.brand:hover{color:var(--primary);}
.brand__mark{width:34px;height:34px;border-radius:12px;background:linear-gradient(140deg,var(--primary),var(--primary-600));color:var(--accent-2);display:inline-flex;align-items:center;justify-content:center;font-size:.9rem;box-shadow:0 6px 16px rgba(43,36,68,.22);}
.brand__text{white-space:nowrap;}
.main-nav ul{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0;}
.main-nav a{position:relative;font-size:.95rem;font-weight:500;color:var(--text);padding:6px 0;display:inline-block;}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.main-nav a:hover{color:var(--primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:700;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header__cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:12px;width:44px;height:44px;color:var(--primary);font-size:1.05rem;cursor:pointer;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 28px;border-radius:var(--radius-pill);font-weight:600;font-size:1rem;border:1px solid transparent;cursor:pointer;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .16s ease,box-shadow .22s ease;white-space:nowrap;}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(43,36,68,.18);}
.btn--primary:hover{background:var(--accent);color:var(--ink-900);box-shadow:0 12px 28px rgba(71,199,184,.28);}
.btn--ghost{border-color:rgba(255,255,255,.42);color:#fff;}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn--outline{border-color:var(--primary);color:var(--primary);}
.btn--outline:hover{background:var(--primary);color:#fff;}
.btn--sm{height:42px;padding:0 20px;font-size:.9rem;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(71,199,184,.35);outline-offset:2px;}

/* 标签 */
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:600;background:rgba(71,199,184,.14);color:#2E8C81;border:1px solid rgba(71,199,184,.28);}
.tag--gold{background:rgba(230,184,92,.16);color:#9A7627;border-color:rgba(230,184,92,.36);}
.tag--dark{background:rgba(71,199,184,.16);color:#8FE3D7;border-color:rgba(143,227,215,.34);}
.tag--muted{background:rgba(43,36,68,.06);color:var(--muted);border-color:var(--border);}

/* Hero */
.hero{position:relative;background:var(--ink-900);color:#EFECF7;overflow:hidden;padding:96px 0;isolation:isolate;}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.34;z-index:-2;}
.hero__veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,18,31,.96) 0%,rgba(20,18,31,.82) 48%,rgba(33,29,49,.7) 100%);z-index:-1;}
.hero__stars{position:absolute;inset:0;z-index:-1;background-image:
  radial-gradient(1.6px 1.6px at 12% 22%,rgba(255,255,255,.55),transparent),
  radial-gradient(1.4px 1.4px at 68% 12%,rgba(255,255,255,.42),transparent),
  radial-gradient(1.6px 1.6px at 84% 62%,rgba(230,184,92,.5),transparent),
  radial-gradient(1.4px 1.4px at 32% 82%,rgba(255,255,255,.35),transparent),
  radial-gradient(1.2px 1.2px at 52% 46%,rgba(143,227,215,.45),transparent);
}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero h1{color:#fff;margin-bottom:1.25rem;}
.hero__sub{color:#C7C1D9;font-size:1.125rem;max-width:34em;margin-bottom:2rem;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.state-card{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:28px;box-shadow:0 18px 44px rgba(0,0,0,.22);}
.state-card__title{font-size:.95rem;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:6px;}
.state-card__desc{color:#A9A3BE;font-size:.875rem;margin-bottom:18px;}
.state-list{list-style:none;}
.state-list li{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 0;border-top:1px solid rgba(255,255,255,.1);font-size:.95rem;color:#D6D1E6;}
.state-list li:first-child{border-top:0;}
.state-list strong{color:#fff;font-weight:700;}
.state-list .accent{color:var(--accent-2);font-weight:700;}

/* 栏目条带 */
.topic-row{display:grid;grid-template-columns:112px 1fr 168px;gap:28px;align-items:start;padding:28px 24px;border-radius:var(--radius);border:1px solid transparent;border-top:1px solid var(--border);transition:background .25s ease,box-shadow .25s ease,transform .25s ease,border-color .25s ease;}
.topic-list .topic-row:first-child{border-top-color:transparent;}
.topic-row:hover{background:var(--surface);border-color:var(--border);border-top-color:var(--border);box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.topic-row__no{font-size:2.25rem;font-weight:800;line-height:1;color:rgba(43,36,68,.16);transition:color .25s ease;}
.topic-row:hover .topic-row__no{color:var(--accent);}
.topic-row__body h3{margin:10px 0 10px;font-size:1.25rem;}
.topic-row__body p{color:var(--muted);margin-bottom:12px;font-size:1rem;}
.point-line{list-style:none;display:flex;flex-wrap:wrap;gap:10px;}
.point-line li{font-size:.85rem;color:var(--primary);background:rgba(43,36,68,.05);border:1px solid var(--border);border-radius:var(--radius-pill);padding:4px 12px;}
.topic-row__media{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);}
.topic-row__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease;}
.topic-row:hover .topic-row__media img{transform:scale(1.04);}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.flow__step{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;}
.flow__step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.flow__num{width:40px;height:40px;border-radius:12px;background:rgba(43,36,68,.06);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;margin-bottom:16px;}
.flow__step h3{font-size:1.1rem;margin-bottom:8px;}
.flow__step p{font-size:.95rem;color:var(--muted);margin:0;}
.flow__step::after{content:"";position:absolute;top:48px;right:-14px;width:24px;height:1px;background:repeating-linear-gradient(90deg,var(--border) 0 4px,transparent 4px 8px);}
.flow__step:last-child::after{display:none;}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.scene-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.scene-card__media{position:relative;overflow:hidden;}
.scene-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.scene-card:hover .scene-card__media img{transform:scale(1.05);}
.scene-card__media .tag{position:absolute;left:16px;top:16px;background:rgba(20,18,31,.72);color:#D8F3EE;border-color:rgba(143,227,215,.35);}
.scene-card__body{padding:26px 26px 28px;}
.scene-card__body h3{font-size:1.2rem;margin-bottom:10px;}
.scene-card__body p{color:var(--muted);font-size:.98rem;margin:0;}
.scene-card:hover h3{color:var(--accent);}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{border-left:1px solid rgba(255,255,255,.14);padding-left:24px;}
.stat:first-child{border-left:0;padding-left:0;}
.stat__num{font-size:clamp(1.9rem,3.4vw,2.75rem);font-weight:800;color:#fff;line-height:1.1;letter-spacing:.01em;}
.stat__num span{color:var(--accent-2);font-size:1.125rem;font-weight:700;margin-left:4px;}
.stat__label{color:#A9A3BE;font-size:.9rem;margin-top:8px;}

/* FAQ */
.faq-list{max-width:900px;}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,background .22s ease;}
.faq-item:hover{border-color:#D6CFC2;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-weight:600;font-size:1.05rem;color:var(--ink-900);cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:1.35rem;font-weight:400;color:var(--accent);line-height:1;flex-shrink:0;transition:transform .25s ease;}
.faq-item[open] summary::after{content:"–";}
.faq-item__body{padding:0 24px 22px;color:var(--muted);font-size:.98rem;}
.faq-item__body p:last-child{margin-bottom:0;}

/* CTA 与表单 */
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.cta-copy h2{color:#fff;}
.cta-copy p{color:#B7B1C9;}
.cta-points{list-style:none;margin-top:24px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:#D6D1E6;font-size:.98rem;padding:8px 0;}
.cta-points i{color:var(--accent);margin-top:6px;}
.form-card{background:var(--surface);border-radius:var(--radius);padding:32px;box-shadow:0 20px 48px rgba(0,0,0,.24);}
.form-card h3{font-size:1.3rem;margin-bottom:6px;}
.form-card > p{color:var(--muted);font-size:.92rem;margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:.9rem;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.field input,.field select,.field textarea{width:100%;height:50px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 16px;background:#FCFBF8;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;}
.field textarea{height:110px;padding:14px 16px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(71,199,184,.16);outline:none;}
.field input::placeholder,.field textarea::placeholder{color:#A9A3BE;}
.form-note{font-size:.82rem;color:var(--muted);margin:14px 0 0;}
.form-msg{display:none;margin-top:14px;font-size:.9rem;border-radius:var(--radius-sm);padding:12px 16px;}
.form-msg.is-ok{display:block;background:rgba(62,155,107,.1);color:#2E7A55;border:1px solid rgba(62,155,107,.28);}
.form-msg.is-err{display:block;background:rgba(201,92,92,.08);color:var(--danger);border:1px solid rgba(201,92,92,.26);}

/* 页脚 */
.site-footer{background:var(--ink-900);color:#B9B3CB;padding-top:76px;}
.footer-col{margin-bottom:36px;}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:18px;font-weight:700;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand p{font-size:.94rem;color:#A9A3BE;margin:0;max-width:30em;}
.footer-list{list-style:none;}
.footer-list li{margin-bottom:11px;font-size:.94rem;color:#A9A3BE;}
.footer-list a{color:#C9C4DA;}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:24px;padding:22px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.85rem;color:#8E88A6;}

/* 响应式 */
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .hero{padding:64px 0;}
  .hero__grid{grid-template-columns:1fr;gap:40px;}
  .topic-row{grid-template-columns:80px 1fr;gap:20px;}
  .topic-row__media{grid-column:2;max-width:420px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow__step::after{display:none;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);gap:32px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .header__cta .btn{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{position:fixed;inset:0;background:var(--ink-900);padding:104px 28px 48px;transform:translateX(102%);transition:transform .3s ease;overflow-y:auto;}
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:flex-start;gap:6px;}
  .main-nav a{color:#fff;font-size:1.25rem;font-weight:600;padding:12px 0;display:block;width:100%;border-bottom:1px solid rgba(255,255,255,.08);}
  .main-nav a:hover,.main-nav a.is-active{color:var(--accent);}
  .main-nav a::after{display:none;}
}
@media screen and (max-width:640px){
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .header__inner{height:64px;}
  .brand{font-size:1rem;}
  .hero{padding:52px 0;}
  .hero__actions{gap:10px;}
  .hero__actions .btn{width:100%;}
  .top-bar__text{font-size:.8rem;padding-right:26px;text-align:left;}
  .top-bar__inner{justify-content:flex-start;}
  .top-bar__close{right:12px;}
  .topic-row{grid-template-columns:1fr;padding:22px 16px;}
  .topic-row__media{grid-column:1;max-width:none;}
  .flow{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;gap:0;}
  .stat{border-left:0;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);}
  .stat:first-child{border-top:0;padding-top:0;}
  .form-card{padding:24px 20px;}
  .footer-bottom{flex-direction:column;}
}