/* roulang page: index */
:root{
  --primary:#00C2A8;
  --primary-dark:#009B87;
  --primary-soft:#E6FAF7;
  --violet:#6C4DFF;
  --violet-soft:#F0EDFF;
  --amber:#FF9F43;
  --amber-dark:#F08A26;
  --amber-soft:#FFF3E4;
  --ink:#101418;
  --ink-2:#1B2028;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --text:#1B1F27;
  --text-2:#5A6270;
  --text-3:#8A93A6;
  --border:#E6E8EE;
  --light-text:#F7F9FC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(16,20,24,.08);
  --shadow-hover:0 14px 36px rgba(16,20,24,.12);
  --shadow-soft:0 1px 2px rgba(16,20,24,.06);
  --space-sec:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Source Han Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(0,194,168,.45);border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--space-sec) 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;line-height:1.4;font-weight:600;letter-spacing:.06em;
  color:var(--primary-dark);background:var(--primary-soft);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.section-tag i{font-size:11px;}
.section-title{font-size:32px;line-height:1.25;font-weight:700;color:var(--text);letter-spacing:-.01em;}
.section-title em{font-style:normal;color:var(--primary-dark);}
.section-desc{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.8;}
.section-head--left{margin-left:0;text-align:left;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--amber);color:#231402;box-shadow:0 8px 20px rgba(255,159,67,.32);}
.btn-primary:hover{background:var(--amber-dark);color:#1B0F00;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,159,67,.4);}
.btn-outline{background:transparent;color:var(--text);border-color:rgba(255,255,255,.55);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--primary-dark);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-2px);}
.btn-dark{background:var(--ink);color:var(--light-text);}
.btn-dark:hover{background:#1F2530;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- Badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.4;font-weight:600;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary-dark);
}
.badge--violet{background:var(--violet-soft);color:var(--violet);}
.badge--amber{background:var(--amber-soft);color:#B96A0B;}
.badge--ink{background:rgba(255,255,255,.12);color:#DFF7F3;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow-soft);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 6px 16px rgba(0,194,168,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-.01em;}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.08em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;}
.main-nav a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  font-size:15px;font-weight:500;color:var(--text-2);border-radius:var(--radius-pill);
}
.main-nav a:hover{color:var(--primary-dark);background:var(--primary-soft);}
.main-nav a.active{color:#fff;background:var(--primary);box-shadow:0 6px 16px rgba(0,194,168,.28);}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:210px;height:42px;padding:0 44px 0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--border);
  background:#FBFCFD;font-size:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,194,168,.16);
}
.nav-search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;border:0;background:transparent;
  color:var(--text-3);cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.nav-search button:hover{background:var(--primary-soft);color:var(--primary-dark);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--border);background:#fff;color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;font-size:16px;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary-dark);}
.drawer{
  display:none;position:fixed;inset:0;z-index:300;
}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(16,20,24,.48);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:#fff;padding:22px 20px;display:flex;flex-direction:column;gap:18px;
  box-shadow:-12px 0 34px rgba(16,20,24,.18);overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--text-2);cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary-dark);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:12px;font-size:15px;font-weight:500;color:var(--text);
  background:#FAFBFC;border:1px solid var(--border);
}
.drawer-nav a.active{background:var(--primary-soft);color:var(--primary-dark);border-color:rgba(0,194,168,.35);}
.drawer-nav a span{color:var(--text-3);font-size:13px;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:var(--light-text);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(16,20,24,.94) 0%,rgba(16,20,24,.82) 45%,rgba(16,20,24,.62) 100%);
}
.hero::after{
  content:"";position:absolute;top:-30%;right:-10%;width:60%;height:160%;
  background:linear-gradient(90deg,rgba(0,194,168,0) 0%,rgba(0,194,168,.22) 45%,rgba(108,77,255,.16) 100%);
  transform:skewX(-14deg);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:96px 0 88px;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:var(--radius-pill);
  background:rgba(0,194,168,.14);border:1px solid rgba(0,194,168,.4);
  font-size:13px;font-weight:600;color:#8FF3E5;margin-bottom:22px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(0,194,168,.22);}
.hero h1{
  font-size:44px;line-height:1.15;font-weight:700;letter-spacing:-.02em;color:#fff;
}
.hero h1 em{font-style:normal;color:#5FEBD6;}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.85;color:#C4CCD8;max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:#B7C0CE;}
.hero-points i{color:var(--primary);font-size:14px;}

.hero-card{
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.18);
  border-radius:20px;padding:26px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:0 20px 50px rgba(0,0,0,.32);
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.hero-card-head h2{font-size:16px;font-weight:600;color:#fff;line-height:1.4;}
.hero-state{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  color:#8FF3E5;background:rgba(0,194,168,.16);border-radius:var(--radius-pill);padding:5px 12px;
}
.hero-state .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);}
.hero-steps{display:flex;flex-direction:column;gap:12px;}
.hero-steps li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
}
.hero-steps .num{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:rgba(0,194,168,.2);color:#8FF3E5;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.hero-steps strong{display:block;font-size:14px;font-weight:600;color:#fff;line-height:1.5;}
.hero-steps span{font-size:13px;color:#9BA5B4;line-height:1.6;}
.hero-card-foot{
  margin-top:20px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.16);
  font-size:13px;color:#9BA5B4;display:flex;align-items:center;gap:8px;
}
.hero-card-foot i{color:var(--amber);}

/* ---------- Trust bar ---------- */
.trust-bar{background:#fff;border-bottom:1px solid var(--border);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.trust-item{
  display:flex;align-items:center;gap:14px;
  padding:26px 24px;border-right:1px solid var(--border);
}
.trust-item:last-child{border-right:0;}
.trust-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  background:var(--primary-soft);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.trust-item b{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.5;}
.trust-item span{font-size:13px;color:var(--text-3);line-height:1.6;}

/* ---------- Pain points ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.pain-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px;display:flex;gap:18px;box-shadow:var(--shadow-soft);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(0,194,168,.35);}
.pain-card:nth-child(even){margin-top:28px;}
.pain-icon{
  width:48px;height:48px;border-radius:14px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:19px;
  background:var(--violet-soft);color:var(--violet);
}
.pain-card:nth-child(2n) .pain-icon{background:var(--amber-soft);color:#B96A0B;}
.pain-card:nth-child(3n) .pain-icon{background:var(--primary-soft);color:var(--primary-dark);}
.pain-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.pain-card p{font-size:15px;color:var(--text-2);line-height:1.8;}
.pain-note{
  margin-top:30px;display:flex;align-items:center;gap:12px;justify-content:center;
  font-size:14px;color:var(--text-3);
}
.pain-note i{color:var(--primary);}

/* ---------- Solution rows ---------- */
.solution-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;margin-bottom:72px;
}
.solution-row:last-child{margin-bottom:0;}
.solution-row.reverse .solution-media{order:2;}
.solution-media{position:relative;}
.solution-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.solution-media::after{
  content:"";position:absolute;left:-16px;bottom:-16px;width:120px;height:120px;
  border-radius:18px;background:linear-gradient(135deg,rgba(0,194,168,.16),rgba(108,77,255,.16));
  z-index:-1;
}
.solution-body h3{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:16px;}
.solution-body h3 em{font-style:normal;color:var(--primary-dark);}
.solution-body p{font-size:16px;color:var(--text-2);line-height:1.85;margin-bottom:18px;}
.solution-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.solution-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.75;}
.solution-list i{color:var(--primary);margin-top:6px;font-size:13px;}
.solution-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary-dark);
}
.solution-link:hover{color:var(--violet);gap:12px;}
.solution-link i{transition:transform .2s ease;}

/* ---------- Stats ---------- */
.stats-band{
  background:var(--ink);color:var(--light-text);border-radius:24px;
  padding:52px 40px;position:relative;overflow:hidden;
}
.stats-band::after{
  content:"";position:absolute;right:-8%;top:-40%;width:46%;height:180%;
  background:linear-gradient(90deg,rgba(0,194,168,0) 0%,rgba(0,194,168,.18) 100%);
  transform:skewX(-14deg);
}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-item{text-align:center;padding:0 12px;border-right:1px solid rgba(255,255,255,.1);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:46px;line-height:1.1;font-weight:700;letter-spacing:-.02em;
  color:#5FEBD6;font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:18px;font-weight:600;margin-left:2px;color:#5FEBD6;}
.stat-label{margin-top:10px;font-size:14px;color:#9BA5B4;letter-spacing:.02em;}

/* ---------- Testimonials ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.voice-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-soft);position:relative;
  transition:transform .2s ease,box-shadow .2s ease;
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.voice-quote{font-size:16px;line-height:1.9;color:var(--text);margin-bottom:22px;}
.voice-quote::before{
  content:"“";display:block;font-size:40px;line-height:1;color:var(--primary);
  font-family:Georgia,serif;margin-bottom:6px;
}
.voice-user{display:flex;align-items:center;gap:14px;padding-top:18px;border-top:1px solid var(--border);}
.voice-avatar{
  width:46px;height:46px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--violet));
}
.voice-avatar.alt{background:linear-gradient(135deg,var(--amber),var(--violet));}
.voice-user b{display:block;font-size:15px;font-weight:600;}
.voice-user span{font-size:13px;color:var(--text-3);}

/* ---------- News / CMS list ---------- */
.news-section{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(0,194,168,.3);}
.news-thumb{display:block;overflow:hidden;background:var(--bg);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-title{font-size:18px;line-height:1.5;font-weight:600;}
.news-title a:hover{color:var(--primary-dark);}
.news-desc{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.news-meta .arrow{color:var(--primary);font-weight:700;transition:transform .2s ease;}
.news-card:hover .news-meta .arrow{transform:translateX(4px);}
.news-empty{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:#FBFCFD;border:1px dashed var(--border);border-radius:var(--radius-card);
}
.news-empty i{font-size:30px;color:var(--text-3);margin-bottom:14px;display:block;}
.news-empty p{font-size:15px;color:var(--text-2);margin-bottom:18px;}
.news-more{margin-top:38px;text-align:center;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion.faq-acc{border:0;background:transparent;}
.faq-acc .accordion-item{border:0;margin-bottom:14px;border-radius:14px;overflow:hidden;background:#fff;border:1px solid var(--border);}
.faq-acc .accordion-title{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
  background:#fff;border:0;line-height:1.5;transition:background-color .2s ease,color .2s ease;
}
.faq-acc .accordion-title:hover{background:#FAFCFD;color:var(--primary-dark);}
.faq-acc .accordion-title::before{display:none;}
.faq-num{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  background:var(--primary-soft);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.faq-acc .accordion-title::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--text-3);margin-left:auto;
}
.faq-acc .accordion-item.is-active .accordion-title{background:var(--primary-soft);color:var(--primary-dark);}
.faq-acc .accordion-item.is-active .accordion-title::after{content:"\f068";color:var(--primary-dark);}
.faq-acc .accordion-item.is-active .faq-num{background:var(--primary);color:#fff;}
.faq-acc .accordion-content{padding:4px 24px 22px 74px;border:0;background:#fff;color:var(--text-2);font-size:15px;line-height:1.85;}
.faq-acc .accordion-content p{margin-bottom:10px;}
.faq-acc .accordion-content p:last-child{margin-bottom:0;}

/* ---------- Final CTA ---------- */
.final-cta{
  position:relative;overflow:hidden;background:var(--ink);color:var(--light-text);
  border-radius:24px;padding:64px 48px;text-align:center;
}
.final-cta::before{
  content:"";position:absolute;left:50%;top:-60%;width:120%;height:200%;
  transform:translateX(-50%) skewX(-14deg);
  background:linear-gradient(90deg,rgba(0,194,168,0) 0%,rgba(0,194,168,.16) 50%,rgba(108,77,255,.14) 100%);
  pointer-events:none;
}
.final-cta > *{position:relative;z-index:2;}
.final-cta h2{font-size:32px;line-height:1.3;font-weight:700;color:#fff;}
.final-cta h2 em{font-style:normal;color:#5FEBD6;}
.final-cta p{margin:18px auto 0;max-width:680px;font-size:16px;line-height:1.85;color:#B7C0CE;}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px;}
.final-tips{margin-top:26px;display:flex;flex-wrap:wrap;gap:26px;justify-content:center;}
.final-tips li{display:flex;align-items:center;gap:8px;font-size:13px;color:#9BA5B4;}
.final-tips i{color:var(--primary);}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C9D0DA;margin-top:var(--space-sec);}
.footer-main{padding:64px 0 44px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:#6E7787;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#9BA5B4;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.footer-tags span{
  font-size:12px;padding:4px 12px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.07);color:#9BA5B4;border:1px solid rgba(255,255,255,.09);
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:#C9D0DA;}
.footer-col a:hover{color:var(--primary);}
.footer-col li span{font-size:14px;color:#9BA5B4;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:#7C8695;}
.footer-bottom nav{display:flex;gap:20px;}
.footer-bottom nav a{font-size:13px;color:#7C8695;}
.footer-bottom nav a:hover{color:var(--primary);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1279px){
  .nav-search input{width:170px;}
  .hero h1{font-size:40px;}
}
@media screen and (max-width:1023px){
  :root{--space-sec:64px;}
  .main-nav,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-inner{padding:72px 0 64px;}
  .hero h1{font-size:36px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .trust-item:nth-child(2){border-right:0;}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--border);}
  .solution-row{gap:36px;margin-bottom:56px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px;}
  .stat-item:nth-child(2){border-right:0;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-main{grid-template-columns:repeat(2,1fr);gap:36px;}
  .section-title{font-size:28px;}
  .final-cta{padding:52px 28px;}
  .final-cta h2{font-size:27px;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-title{font-size:24px;}
  .section-desc{font-size:15px;}
  .hero h1{font-size:30px;line-height:1.2;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-card{padding:20px;}
  .pain-grid{grid-template-columns:1fr;}
  .pain-card:nth-child(even){margin-top:0;}
  .solution-row{grid-template-columns:1fr;}
  .solution-row.reverse .solution-media{order:0;}
  .solution-body h3{font-size:22px;}
  .stats-band{padding:38px 22px;border-radius:18px;}
  .stat-num{font-size:36px;}
  .voice-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-acc .accordion-title{padding:16px 18px;font-size:16px;}
  .faq-acc .accordion-content{padding:4px 18px 20px 18px;}
  .final-cta{padding:44px 20px;border-radius:18px;}
  .final-cta h2{font-size:23px;}
  .final-actions .btn{flex:1 1 auto;}
  .footer-main{grid-template-columns:1fr;gap:32px;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .trust-grid{grid-template-columns:1fr;}
  .trust-item{border-right:0;border-bottom:1px solid var(--border);}
  .trust-item:last-child{border-bottom:0;}
}
@media screen and (max-width:520px){
  .logo-text b{font-size:15px;}
  .logo-text span{display:none;}
  .hero-points{gap:14px;}
  .hero-points li{font-size:13px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:20px;}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
}

/* roulang page: article */
:root{
  --c-primary:#00C2A8;
  --c-primary-dark:#00907C;
  --c-primary-deep:#00796A;
  --c-primary-soft:rgba(0,194,168,.10);
  --c-secondary:#6C4DFF;
  --c-secondary-soft:rgba(108,77,255,.10);
  --c-accent:#FF9F43;
  --c-accent-dark:#F08C25;
  --c-bg:#F5F7FA;
  --c-card:#FFFFFF;
  --c-dark:#101418;
  --c-ink:#1B1F27;
  --c-text-2:#5A6270;
  --c-muted:#8A93A6;
  --c-border:#E6E8EE;
  --c-white:#F7F9FC;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(16,20,24,.08);
  --shadow-2:0 14px 36px rgba(16,20,24,.12);
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary-deep);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4{color:var(--c-ink);font-weight:700;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
button,input,textarea{font-family:inherit}
:focus-visible{outline:3px solid rgba(0,194,168,.35);outline-offset:2px}
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin:0 auto 40px;text-align:center}
.section-head h2{font-size:32px;line-height:1.25;font-weight:700;margin-bottom:14px}
.section-head p{color:var(--c-text-2);font-size:16px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--c-primary-dark);background:var(--c-primary-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.show-for-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#FFFFFF;
  border-bottom:1px solid var(--c-border);
  box-shadow:0 1px 2px rgba(16,20,24,.06);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:72px;position:relative}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-secondary) 100%);
  color:#fff;font-size:16px;box-shadow:0 6px 16px rgba(0,194,168,.32);flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:16px;font-weight:700;letter-spacing:.01em}
.logo-text span{font-size:12px;color:var(--c-muted)}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.main-nav a{
  padding:8px 15px;border-radius:999px;font-size:15px;font-weight:500;color:var(--c-text-2);white-space:nowrap;
}
.main-nav a:hover{color:var(--c-primary-deep);background:var(--c-primary-soft)}
.main-nav a.active{color:var(--c-primary-deep);background:var(--c-primary-soft);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:224px;height:42px;border-radius:999px;border:1px solid var(--c-border);background:#F8FAFC;
  padding:0 44px 0 18px;font-size:14px;color:var(--c-ink);outline:none;transition:border-color .2s,box-shadow .2s,background-color .2s;
}
.nav-search input::placeholder{color:var(--c-muted)}
.nav-search input:focus{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(0,194,168,.18)}
.nav-search button{
  position:absolute;right:6px;width:32px;height:32px;border-radius:50%;border:0;background:transparent;
  color:var(--c-muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:.2s;
}
.nav-search button:hover{color:var(--c-primary-deep);background:var(--c-primary-soft)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-border);background:#fff;
  color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary-deep)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-accent);color:#25180A;box-shadow:0 8px 20px rgba(255,159,67,.32)}
.btn-primary:hover{background:var(--c-accent-dark);color:#241708;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,159,67,.38)}
.btn-outline{background:#fff;border-color:var(--c-border);color:var(--c-ink)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-soft);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:rgba(247,249,252,.5);color:#F7F9FC}
.btn-ghost:hover{background:rgba(247,249,252,.12);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* 文章首屏 */
.page-hero{position:relative;overflow:hidden;background:var(--c-dark);color:var(--c-white);padding:52px 0 60px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.38;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(16,20,24,.95) 0%,rgba(16,20,24,.80) 45%,rgba(0,194,168,.24) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(247,249,252,.7);margin-bottom:20px}
.breadcrumb a{color:rgba(247,249,252,.86)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:#fff;font-weight:500}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:#C9FFF6;background:rgba(0,194,168,.18);border:1px solid rgba(0,194,168,.45);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.page-title{font-size:40px;line-height:1.2;font-weight:700;color:#fff;max-width:920px;margin-bottom:18px}
.post-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:rgba(247,249,252,.78)}
.post-meta span{display:inline-flex;align-items:center;gap:8px}
.post-meta i{color:var(--c-primary)}
.post-meta time{color:rgba(247,249,252,.9)}

/* 正文布局 */
.article-section{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}
.article-main{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:44px 48px;
}
.article-content{max-width:820px;font-size:16.5px;line-height:1.85;color:#232A35}
.article-content>*:first-child{margin-top:0}
.article-content h2{
  font-size:26px;line-height:1.35;font-weight:700;margin:2em 0 .8em;padding-left:14px;
  border-left:4px solid var(--c-primary);
}
.article-content h3{font-size:20px;line-height:1.4;font-weight:600;margin:1.7em 0 .6em}
.article-content h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--c-text-2)}
.article-content p{margin:0 0 1.2em}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:1.35em}
.article-content li{margin-bottom:.5em}
.article-content li::marker{color:var(--c-primary-dark)}
.article-content strong{font-weight:700;color:#11161E}
.article-content a{color:var(--c-primary-deep);border-bottom:1px solid rgba(0,194,168,.45);padding-bottom:1px}
.article-content a:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.article-content img{border-radius:12px;margin:1.5em 0;box-shadow:var(--shadow-1)}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;background:rgba(0,194,168,.08);
  border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;color:#3A424F;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border:1px solid var(--c-border);border-radius:12px;overflow:hidden}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--c-border);text-align:left}
.article-content th{background:#F2F6F8;font-weight:600;color:var(--c-text-2)}
.article-content tr:last-child td{border-bottom:0}
.article-content code{background:#F1F3F7;border-radius:6px;padding:2px 7px;font-size:14px;color:#B2425C}
.article-content pre{background:#101418;color:#E6EDF3;padding:18px 20px;border-radius:12px;overflow:auto;font-size:14px;line-height:1.7;margin:1.5em 0}
.article-content hr{border:0;height:1px;background:var(--c-border);margin:2.4em 0}

/* 侧栏 */
.side-panel{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--c-primary)}
.side-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--c-text-2);background:#F6F8FB;border-radius:10px;padding:10px 13px;
}
.side-list a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.side-list a i{font-size:12px;color:var(--c-muted)}
.side-note{font-size:14px;color:var(--c-text-2);line-height:1.7;margin-bottom:14px}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags span{font-size:12px;color:var(--c-secondary);background:var(--c-secondary-soft);border-radius:999px;padding:5px 12px}

/* 空态 */
.empty-state{
  background:var(--c-card);border:1px dashed var(--c-border);border-radius:var(--radius-card);
  padding:72px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:24px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--c-text-2);margin-bottom:22px}

/* 相关推荐 */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.entry-card{
  display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(0,194,168,.4)}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF1F5}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.05)}
.entry-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-tag{font-size:12px;font-weight:600;color:var(--c-primary-deep);background:var(--c-primary-soft);border-radius:999px;padding:4px 12px;align-self:flex-start}
.entry-body h3{font-size:18px;line-height:1.45;font-weight:600}
.entry-body p{font-size:14.5px;color:var(--c-text-2);line-height:1.7}
.entry-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);padding-top:6px}
.entry-foot i{transition:transform .24s ease;color:var(--c-primary-dark)}
.entry-card:hover .entry-foot i{transform:translateX(4px)}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary-deep);margin-top:28px}
.back-link:hover{gap:12px;color:var(--c-primary)}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:var(--c-card);border:1px solid var(--c-border);border-radius:14px;overflow:hidden;transition:border-color .22s,background-color .22s,box-shadow .22s}
.faq-item[open]{border-color:rgba(0,194,168,.42);background:linear-gradient(180deg,#F1FBF9 0%,#FFFFFF 78%);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-size:13px;font-weight:700;color:var(--c-primary-dark);letter-spacing:.06em}
.faq-item summary .faq-icon{margin-left:auto;color:var(--c-muted);transition:transform .25s ease,color .25s ease}
.faq-item[open] summary .faq-icon{transform:rotate(45deg);color:var(--c-primary)}
.faq-body{padding:0 22px 20px 60px;font-size:15.5px;color:var(--c-text-2);line-height:1.8}
.faq-body p{margin:0}

/* CTA */
.cta-band{position:relative;overflow:hidden;background:var(--c-dark);color:var(--c-white);border-radius:20px;padding:60px 48px;text-align:center;box-shadow:var(--shadow-2)}
.cta-band::before{content:"";position:absolute;width:520px;height:520px;right:-170px;top:-230px;background:radial-gradient(circle,rgba(0,194,168,.42),transparent 62%)}
.cta-band::after{content:"";position:absolute;width:460px;height:460px;left:-160px;bottom:-220px;background:radial-gradient(circle,rgba(108,77,255,.36),transparent 66%)}
.cta-band .cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.cta-band h2{color:#fff;font-size:32px;line-height:1.3;margin-bottom:16px}
.cta-band p{color:rgba(247,249,252,.8);font-size:16px;margin-bottom:30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 页脚 */
.site-footer{background:var(--c-dark);color:#C9D0DA;margin-top:80px;padding:64px 0 28px}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:#8A93A6}
.footer-brand p{font-size:14.5px;line-height:1.8;color:#A7B0BE;margin-bottom:18px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{font-size:12px;color:#8FE9DC;background:rgba(0,194,168,.14);border:1px solid rgba(0,194,168,.3);border-radius:999px;padding:5px 12px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:11px}
.footer-col li{font-size:14px;color:#A7B0BE;line-height:1.7}
.footer-col a{color:#C9D0DA}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding-top:24px}
.footer-bottom p{font-size:13.5px;color:#8A93A6}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom nav a{font-size:13.5px;color:#C9D0DA}
.footer-bottom nav a:hover{color:var(--c-primary)}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:28px}
  .article-main{padding:38px 34px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;top:calc(100% + 1px);left:-24px;right:-24px;display:none;flex-direction:column;
    align-items:stretch;gap:4px;padding:14px 24px 20px;background:#fff;border-bottom:1px solid var(--c-border);
    box-shadow:var(--shadow-2);
  }
  .site-header.nav-open .main-nav{display:flex}
  .main-nav a{padding:13px 16px;border-radius:12px;font-size:16px}
  .nav-wrap{min-height:64px;gap:16px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-panel{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-main{grid-template-columns:1fr 1fr;gap:30px}
  .page-title{font-size:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .page-hero{padding:40px 0 46px}
  .page-title{font-size:27px;line-height:1.25}
  .article-section{padding:36px 0 52px}
  .article-main{padding:26px 20px;border-radius:14px}
  .article-content{font-size:16px;line-height:1.8}
  .article-content h2{font-size:22px;margin-top:1.7em}
  .article-content h3{font-size:18px}
  .side-panel{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:0 18px 18px 18px}
  .cta-band{padding:44px 22px;border-radius:16px}
  .cta-band h2{font-size:24px}
  .footer-main{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .nav-right .btn-sm{display:none}
}
@media (max-width:520px){
  .logo-text span{display:none}
  .logo-text b{font-size:15px}
  .page-title{font-size:24px}
  .btn{width:100%}
  .nav-right .btn{width:auto}
}

/* roulang page: category1 */
:root{
  --brand:#00C2A8;
  --brand-dark:#00806F;
  --brand-soft:rgba(0,194,168,.10);
  --purple:#6C4DFF;
  --amber:#FF9F43;
  --amber-dark:#F0871E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --ink:#1B1F27;
  --ink-2:#5A6270;
  --ink-3:#8A93A6;
  --line:#E6E8EE;
  --dark:#101418;
  --dark-ink:#F7F9FC;
  --r-card:16px;
  --r-btn:10px;
  --shadow:0 8px 24px rgba(16,20,24,.08);
  --shadow-hover:0 14px 36px rgba(16,20,24,.12);
  --sec:80px;
  --font:"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0 0 .5em;color:var(--ink);font-weight:700;letter-spacing:.2px;}
h1{font-size:44px;line-height:1.15;}
h2{font-size:32px;line-height:1.25;}
h3{font-size:22px;line-height:1.4;font-weight:600;}
h4{font-size:18px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.2em;color:var(--ink-2);}
ul,ol{margin:0 0 1.2em;padding-left:1.2em;color:var(--ink-2);}
li{margin-bottom:.4em;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:3px solid rgba(0,194,168,.45);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;line-height:1.4;letter-spacing:.12em;
  color:var(--brand-dark);font-weight:600;
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:11px;}
.lead{font-size:17px;color:var(--ink-2);}
.muted{color:var(--ink-3);font-size:14px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:42px;padding:0 18px;font-size:15px;}
.btn-primary{background:var(--amber);color:#2A1600;box-shadow:0 6px 16px rgba(255,159,67,.32);}
.btn-primary:hover{background:var(--amber-dark);color:#2A1600;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,159,67,.38);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:var(--dark-ink);border-color:rgba(247,249,252,.5);}
.btn-outline-light:hover{background:rgba(247,249,252,.12);color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,20,24,.06);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--purple));color:#fff;font-size:16px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-size:16px;font-weight:700;color:var(--ink);}
.logo-text span{font-size:12px;color:var(--ink-3);}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.main-nav a{
  padding:9px 15px;border-radius:999px;font-size:15px;color:var(--ink-2);font-weight:500;
  border-bottom:2px solid transparent;
}
.main-nav a:hover{color:var(--brand-dark);background:var(--brand-soft);}
.main-nav a.active{color:var(--brand-dark);background:var(--brand-soft);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:6px;height:42px;padding:0 6px 0 16px;
  border:1px solid var(--line);border-radius:999px;background:#fff;transition:border-color .2s,box-shadow .2s;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,194,168,.18);}
.nav-search input{
  border:0;outline:none;background:transparent;width:170px;height:38px;font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search button{
  width:32px;height:32px;border:0;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;transition:background-color .2s,color .2s;
}
.nav-search button:hover{background:var(--brand);color:#fff;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);place-items:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-dark);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:var(--dark-ink);
  background-image:linear-gradient(115deg,rgba(16,20,24,.94) 0%,rgba(16,20,24,.82) 48%,rgba(16,20,24,.68) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,transparent 42%,rgba(0,194,168,.16) 58%,transparent 74%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .85fr;gap:56px;align-items:center;
  padding:96px 0 88px;
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero .hero-sub{color:rgba(247,249,252,.82);font-size:18px;max-width:620px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.1em;
  color:#7FF0DE;background:rgba(0,194,168,.16);border:1px solid rgba(0,194,168,.4);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(247,249,252,.16);}
.hero-meta div{font-size:14px;color:rgba(247,249,252,.72);}
.hero-meta b{display:block;font-size:20px;color:#fff;font-weight:700;}
.entry-card{
  background:rgba(247,249,252,.10);
  border:1px solid rgba(247,249,252,.22);
  border-radius:20px;padding:24px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:0 20px 48px rgba(0,0,0,.28);
}
.entry-card h3{color:#fff;font-size:18px;margin-bottom:14px;}
.entry-card ul{list-style:none;padding:0;margin:0;}
.entry-card li{
  display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(247,249,252,.85);
  padding:10px 0;border-bottom:1px dashed rgba(247,249,252,.18);
}
.entry-card li:last-child{border-bottom:0;}
.entry-card .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 8px;box-shadow:0 0 0 4px rgba(0,194,168,.18);}
.entry-card .entry-foot{margin-top:16px;font-size:13px;color:rgba(247,249,252,.6);}

/* ---------- 快捷条 ---------- */
.quick-bar{background:#fff;border-bottom:1px solid var(--line);}
.quick-track{display:flex;gap:16px;padding:20px 0;overflow-x:auto;scrollbar-width:thin;}
.quick-item{
  display:flex;align-items:center;gap:12px;flex:1 0 240px;
  padding:14px 18px;border:1px solid var(--line);border-radius:14px;background:#fff;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.quick-item:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px);}
.quick-item i{font-size:18px;color:var(--brand);}
.quick-item b{display:block;font-size:15px;color:var(--ink);}
.quick-item span{display:block;font-size:13px;color:var(--ink-3);line-height:1.5;}

/* ---------- 布局：侧锚点 + 内容 ---------- */
.layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:48px;align-items:start;}
.side-anchor{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow);
}
.side-anchor h4{font-size:14px;color:var(--ink-3);letter-spacing:.08em;margin:0 0 10px;padding-left:12px;font-weight:600;}
.side-anchor a{
  display:block;padding:10px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
  transition:background-color .2s,color .2s,transform .2s;
}
.side-anchor a:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateX(2px);}
.side-anchor a.current{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;}
.side-anchor .anchor-cta{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}
.content-block{margin-bottom:72px;}
.content-block:last-child{margin-bottom:0;}
.content-block > h2{position:relative;padding-left:16px;margin-bottom:18px;}
.content-block > h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--purple));
}

/* ---------- 双列信息卡 ---------- */
.duo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(0,194,168,.5);}
.info-card .ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:18px;
}
.info-card h3{font-size:19px;margin-bottom:8px;}
.info-card p{margin-bottom:0;font-size:15px;}
.info-card ul{margin:10px 0 0;font-size:15px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;}
.tl-item{display:grid;grid-template-columns:60px minmax(0,1fr);gap:20px;padding-bottom:24px;position:relative;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:29px;top:64px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(0,194,168,.45),rgba(0,194,168,.08));
}
.tl-item:last-child::before{display:none;}
.tl-num{
  width:60px;height:60px;border-radius:18px;display:grid;place-items:center;
  background:#fff;border:1px solid rgba(0,194,168,.45);color:var(--brand-dark);
  font-weight:700;font-size:20px;box-shadow:var(--shadow);
}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 24px;box-shadow:var(--shadow);transition:box-shadow .25s,transform .25s;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.tl-body h3{font-size:19px;margin-bottom:8px;}
.tl-body p{margin-bottom:0;font-size:15px;}
.tl-tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--purple);
  border:1px solid rgba(108,77,255,.35);border-radius:999px;padding:2px 10px;margin-bottom:10px;
}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:44px;align-items:center;margin-bottom:56px;}
.split:last-child{margin-bottom:0;}
.split.reverse .split-media{order:2;}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow);}
.split-body h3{font-size:24px;margin-bottom:12px;}
.split-body p{font-size:15.5px;}
.check-list{list-style:none;padding:0;margin:16px 0 0;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);margin-bottom:10px;}
.check-list i{color:var(--brand);margin-top:5px;font-size:13px;}

/* ---------- 数据条 ---------- */
.stat-band{
  background:linear-gradient(120deg,rgba(0,194,168,.10),rgba(108,77,255,.08));
  border:1px solid rgba(0,194,168,.25);border-radius:20px;padding:34px 28px;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;text-align:center;}
.stat-grid b{display:block;font-size:44px;line-height:1.1;font-weight:700;color:var(--brand-dark);}
.stat-grid span{display:block;font-size:14px;color:var(--ink-2);margin-top:6px;}

/* ---------- 提示框 ---------- */
.callout-soft{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--amber);
  border-radius:14px;padding:20px 24px;box-shadow:var(--shadow);
}
.callout-soft h4{margin-bottom:6px;font-size:17px;}
.callout-soft p{margin-bottom:0;font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .25s,box-shadow .25s,background-color .25s;
}
.faq-item[open]{background:rgba(0,194,168,.06);border-color:rgba(0,194,168,.45);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:18px 20px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-no{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:700;margin-top:1px;
}
.faq-plus{margin-left:auto;color:var(--brand);transition:transform .25s;font-size:15px;margin-top:6px;}
.faq-item[open] .faq-plus{transform:rotate(45deg);}
.faq-answer{padding:0 22px 20px 64px;font-size:15px;color:var(--ink-2);}
.faq-answer p{margin-bottom:0;font-size:15px;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--dark);color:var(--dark-ink);padding:72px 0;}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:-10%;width:60%;height:180%;
  background:linear-gradient(115deg,transparent,rgba(0,194,168,.28),transparent);
  transform:rotate(8deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;}
.cta-inner h2{color:#fff;margin-bottom:12px;}
.cta-inner p{color:rgba(247,249,252,.75);margin-bottom:0;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C9D0DA;padding:64px 0 28px;}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(247,249,252,.12);}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:#8A93A6;}
.footer-brand p{color:#9AA4B2;font-size:14.5px;margin-top:16px;max-width:360px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;}
.footer-tags span{
  font-size:12px;color:#7FF0DE;background:rgba(0,194,168,.14);
  border:1px solid rgba(0,194,168,.3);border-radius:999px;padding:3px 12px;
}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;font-size:14.5px;color:#9AA4B2;}
.footer-col a{color:#C9D0DA;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;padding-top:24px;}
.footer-bottom p{margin:0;font-size:13.5px;color:#8A93A6;}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom nav a{font-size:13.5px;color:#C9D0DA;}
.footer-bottom nav a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sec:64px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .nav-wrap{height:64px;gap:12px;}
  .nav-search{display:none;}
  .nav-toggle{display:grid;}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;z-index:70;display:none;flex-direction:column;align-items:stretch;
    margin:0;padding:12px 16px 20px;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 14px 36px rgba(16,20,24,.12);max-height:calc(100vh - 64px);overflow:auto;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:14px 14px;border-radius:12px;font-size:16px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:64px 0 60px;}
  .layout{grid-template-columns:1fr;gap:32px;}
  .side-anchor{position:static;display:flex;gap:8px;overflow-x:auto;padding:14px;}
  .side-anchor h4{display:none;}
  .side-anchor a{white-space:nowrap;padding:8px 14px;}
  .side-anchor .anchor-cta{margin:0;padding:0;border:0;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  :root{--sec:56px;}
  .container{padding:0 16px;}
  h1{font-size:30px;line-height:1.2;}
  h2{font-size:24px;line-height:1.3;}
  h3{font-size:20px;}
  .hero .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .duo-grid{grid-template-columns:1fr;gap:16px;}
  .split{grid-template-columns:1fr;gap:20px;margin-bottom:40px;}
  .split.reverse .split-media{order:0;}
  .split-body h3{font-size:21px;}
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:14px;}
  .tl-item::before{left:23px;top:52px;}
  .tl-num{width:48px;height:48px;border-radius:14px;font-size:17px;}
  .tl-body{padding:18px;}
  .stat-grid b{font-size:36px;}
  .faq-answer{padding:0 18px 18px 18px;}
  .faq-item summary{font-size:16px;padding:16px;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .quick-item{flex:1 0 100%;}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#00C2A8;
  --c-primary-dark:#00A48F;
  --c-primary-soft:#E6FAF7;
  --c-violet:#6C4DFF;
  --c-violet-soft:#EFEBFF;
  --c-accent:#FF9F43;
  --c-accent-dark:#F08A22;
  --c-ink:#101418;
  --c-bg:#F5F7FA;
  --c-card:#FFFFFF;
  --c-text:#1B1F27;
  --c-text-2:#5A6270;
  --c-text-3:#8A93A6;
  --c-invert:#F7F9FC;
  --c-border:#E6E8EE;
  --c-danger:#D9534F;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(16,20,24,.08);
  --sh-2:0 14px 36px rgba(16,20,24,.12);
  --sec-pad:80px;
  --gap:24px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary-dark);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(0,194,168,.45);outline-offset:2px;}
.show-for-sr{position:absolute!important;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:15px;}
.btn-primary{background:var(--c-accent);color:#1B1F27;box-shadow:0 8px 20px rgba(255,159,67,.30);}
.btn-primary:hover{background:var(--c-accent-dark);color:#1B1F27;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,159,67,.38);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-invert);border-color:rgba(247,249,252,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--c-primary-dark);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-sm{height:42px;padding:0 18px;font-size:15px;}
.btn-block{width:100%;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-border);
  box-shadow:0 1px 2px rgba(16,20,24,.06);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:12px;color:var(--c-text);flex:none;}
.logo:hover{color:var(--c-text);}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-violet));
  color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(0,194,168,.28);
}
.logo-text b{display:block;font-size:17px;font-weight:700;letter-spacing:.2px;line-height:1.25;}
.logo-text span{display:block;font-size:12px;color:var(--c-text-3);line-height:1.4;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.main-nav a{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--c-text-2);font-weight:500;
}
.main-nav a:hover{color:var(--c-primary-dark);background:var(--c-primary-soft);}
.main-nav a.active{color:var(--c-primary-dark);background:var(--c-primary-soft);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:224px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--c-border);background:#F9FAFC;
  padding:0 44px 0 18px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search input:focus{
  outline:none;background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(0,194,168,.18);
}
.nav-search button{
  position:absolute;right:6px;width:32px;height:32px;border:none;border-radius:50%;
  background:transparent;color:var(--c-text-3);display:grid;place-items:center;
  transition:color .2s ease,background .2s ease;
}
.nav-search button:hover{color:var(--c-primary-dark);background:var(--c-primary-soft);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--c-primary-dark);border-color:var(--c-primary);}

/* 移动端抽屉 */
.nav-overlay{
  position:fixed;inset:0;background:rgba(16,20,24,.5);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.nav-overlay.show{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,340px);z-index:80;
  background:#fff;padding:24px 22px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  box-shadow:-12px 0 40px rgba(16,20,24,.18);overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-text-2);display:grid;place-items:center;
}
.drawer-close:hover{color:var(--c-primary-dark);border-color:var(--c-primary);}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:12px;font-size:16px;font-weight:500;
  color:var(--c-text);background:#F9FAFC;border:1px solid var(--c-border);
}
.nav-drawer a.drawer-link:hover{background:var(--c-primary-soft);border-color:#CFEFE9;color:var(--c-primary-dark);}
.nav-drawer a.drawer-link.active{background:var(--c-primary-soft);border-color:#CFEFE9;color:var(--c-primary-dark);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--c-border);display:grid;gap:12px;}
.drawer-foot p{font-size:13px;color:var(--c-text-3);line-height:1.7;}

/* ===== Hero ===== */
.hero{position:relative;background:var(--c-ink);color:var(--c-invert);overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.42;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(118deg,rgba(16,20,24,.95) 0%,rgba(16,20,24,.80) 46%,rgba(16,20,24,.58) 100%);
}
.hero::after{
  content:"";position:absolute;z-index:1;top:-55%;left:-12%;width:58%;height:210%;
  background:linear-gradient(90deg,rgba(0,194,168,0) 0%,rgba(0,194,168,.26) 48%,rgba(108,77,255,.18) 70%,rgba(0,194,168,0) 100%);
  transform:rotate(-13deg);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.35fr .9fr;gap:48px;align-items:center;
  padding:84px 0 96px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);font-size:13px;font-weight:600;
  color:#B8FFF4;background:rgba(0,194,168,.16);border:1px solid rgba(0,194,168,.42);
}
.hero h1{
  margin:22px 0 20px;font-size:44px;line-height:1.16;font-weight:700;letter-spacing:.3px;
  color:#fff;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:18px;line-height:1.85;color:rgba(247,249,252,.82);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-note{
  display:flex;align-items:center;gap:10px;margin-top:26px;
  font-size:14px;color:rgba(247,249,252,.66);
}
.hero-note i{color:var(--c-primary);}

.hero-card{
  border-radius:var(--r-card);padding:26px;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.20);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:0 20px 50px rgba(0,0,0,.28);
}
.hero-card h2{font-size:16px;font-weight:600;color:#fff;margin-bottom:6px;}
.hero-card .card-hint{font-size:13px;color:rgba(247,249,252,.62);margin-bottom:18px;}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.14);font-size:14px;
}
.status-row:last-of-type{border-bottom:none;}
.status-row .sr-key{color:rgba(247,249,252,.68);}
.status-row .sr-val{color:#fff;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(0,194,168,.18);}
.dot.warn{background:var(--c-accent);box-shadow:0 0 0 4px rgba(255,159,67,.18);}
.hero-card .btn{margin-top:20px;}

.hero-wave{position:absolute;left:0;right:0;bottom:-1px;z-index:2;line-height:0;}
.hero-wave svg{display:block;width:100%;height:58px;}

/* ===== 板块通用 ===== */
.section{padding:var(--sec-pad) 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.4px;
  color:var(--c-primary-dark);background:var(--c-primary-soft);border:1px solid #CFEFE9;
}
.section-tag.violet{color:#4B32C9;background:var(--c-violet-soft);border-color:#DDD5FF;}
.section h2{margin:18px 0 14px;font-size:32px;line-height:1.28;font-weight:700;color:var(--c-text);}
.section-desc{font-size:16px;line-height:1.85;color:var(--c-text-2);}

/* ===== 数据条 ===== */
.stat-bar{
  position:relative;z-index:3;margin-top:-42px;
}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:28px 24px;border-right:1px solid var(--c-border);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:44px;line-height:1.1;font-weight:700;color:var(--c-text);letter-spacing:-.5px;}
.stat-num span{font-size:20px;font-weight:600;color:var(--c-primary-dark);margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--c-text-2);line-height:1.6;}
.stat-item:nth-child(2) .stat-num span{color:var(--c-violet);}
.stat-item:nth-child(3) .stat-num span{color:var(--c-accent-dark);}

/* ===== 步骤条 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);position:relative;}
.step{
  position:relative;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:28px 22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFEFE9;}
.step-num{
  width:44px;height:44px;border-radius:var(--r-pill);display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:17px;font-weight:700;margin-bottom:16px;
  border:1px solid #CFEFE9;
}
.step:nth-child(2) .step-num{background:var(--c-violet-soft);color:#4B32C9;border-color:#DDD5FF;}
.step:nth-child(3) .step-num{background:#FFF3E5;color:var(--c-accent-dark);border-color:#FFE0BE;}
.step h3{font-size:19px;font-weight:600;margin-bottom:10px;line-height:1.4;}
.step p{font-size:14.5px;line-height:1.75;color:var(--c-text-2);}
.step::after{
  content:"";position:absolute;top:50px;right:-16px;width:14px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),rgba(108,77,255,.4));opacity:.55;border-radius:2px;
}
.step:last-child::after{display:none;}

/* ===== 对比卡 ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);}
.compare-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:32px 30px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.compare-card.safe{border-top:4px solid var(--c-primary);}
.compare-card.risk{border-top:4px solid var(--c-accent);}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.compare-head .ch-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:18px;
}
.compare-card.safe .ch-icon{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.compare-card.risk .ch-icon{background:#FFF3E5;color:var(--c-accent-dark);}
.compare-head h3{font-size:20px;font-weight:600;}
.compare-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--c-border);
  font-size:15px;line-height:1.75;color:var(--c-text-2);
}
.compare-list li:last-child{border-bottom:none;padding-bottom:0;}
.compare-list li i{margin-top:5px;font-size:14px;flex:none;}
.compare-card.safe .compare-list li i{color:var(--c-primary);}
.compare-card.risk .compare-list li i{color:var(--c-accent-dark);}

/* ===== 防护要点双列卡 ===== */
.guard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap);}
.guard-card{
  display:flex;gap:18px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.guard-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFEFE9;}
.guard-icon{
  width:52px;height:52px;flex:none;border-radius:14px;display:grid;place-items:center;
  font-size:20px;background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.guard-card:nth-child(2n) .guard-icon{background:var(--c-violet-soft);color:#4B32C9;}
.guard-card:nth-child(3n) .guard-icon{background:#FFF3E5;color:var(--c-accent-dark);}
.guard-body h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.guard-body p{font-size:15px;line-height:1.78;color:var(--c-text-2);}

/* ===== 图墙 ===== */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.gallery figure{
  position:relative;margin:0;border-radius:var(--r-card);overflow:hidden;
  background:#101418;box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.gallery figure:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.gallery img{
  width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .45s ease;
}
.gallery figure:hover img{transform:scale(1.05);}
.gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 16px 16px;
  font-size:13.5px;line-height:1.6;color:#fff;
  background:linear-gradient(180deg,rgba(16,20,24,0) 0%,rgba(16,20,24,.86) 70%);
}

/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--c-border);border-radius:14px;
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.faq-item:hover{border-color:#CFEFE9;box-shadow:var(--sh-1);}
.faq-item[open]{border-color:#CFEFE9;background:linear-gradient(180deg,#F3FCFA 0%,#FFFFFF 100%);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 60px 20px 22px;font-size:17px;font-weight:600;color:var(--c-text);
  display:flex;align-items:flex-start;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{
  font-size:13px;font-weight:700;color:var(--c-primary-dark);
  background:var(--c-primary-soft);border-radius:8px;padding:3px 9px;flex:none;margin-top:3px;
}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:500;color:var(--c-primary-dark);line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-body{padding:0 60px 22px 74px;font-size:15.5px;line-height:1.85;color:var(--c-text-2);}

/* ===== 最终 CTA ===== */
.final-cta{position:relative;background:var(--c-ink);color:var(--c-invert);overflow:hidden;padding:84px 0;}
.final-cta::before{
  content:"";position:absolute;top:-50%;right:-10%;width:70%;height:200%;
  background:linear-gradient(90deg,rgba(0,194,168,0) 0%,rgba(0,194,168,.20) 45%,rgba(108,77,255,.20) 72%,rgba(0,194,168,0) 100%);
  transform:rotate(-12deg);pointer-events:none;
}
.final-cta .container{position:relative;z-index:2;}
.cta-box{max-width:760px;margin:0 auto;text-align:center;}
.cta-box .section-tag{background:rgba(0,194,168,.16);border-color:rgba(0,194,168,.42);color:#B8FFF4;}
.cta-box h2{margin:20px 0 16px;font-size:32px;line-height:1.3;color:#fff;font-weight:700;}
.cta-box p{font-size:16px;line-height:1.85;color:rgba(247,249,252,.76);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink);color:#C9D0DA;padding:64px 0 0;}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:var(--c-text-3);}
.footer-brand p{font-size:14px;line-height:1.8;color:#C9D0DA;max-width:400px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{
  padding:5px 12px;border-radius:var(--r-pill);font-size:12px;
  color:#B8FFF4;background:rgba(0,194,168,.12);border:1px solid rgba(0,194,168,.32);
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;font-size:14px;line-height:1.7;}
.footer-col a{color:#C9D0DA;}
.footer-col a:hover{color:var(--c-primary);}
.footer-col span{color:#C9D0DA;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0;font-size:13px;color:var(--c-text-3);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom nav a{color:#C9D0DA;font-size:13px;}
.footer-bottom nav a:hover{color:var(--c-primary);}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--sec-pad:64px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{height:64px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:64px 0 76px;}
  .hero h1{font-size:36px;}
  .stat-bar{margin-top:-30px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item{border-bottom:1px solid var(--c-border);}
  .stat-item:nth-child(2n){border-right:none;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-bottom:none;}
  .stat-num{font-size:38px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
  .gallery{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  :root{--sec-pad:56px;--gap:16px;}
  .container{padding:0 16px;}
  .logo-text span{display:none;}
  .hero h1{font-size:30px;line-height:1.24;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-card{padding:22px;}
  .section h2{font-size:24px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item{border-right:none;border-bottom:1px solid var(--c-border);padding:22px 20px;}
  .stat-item:nth-child(3){border-bottom:1px solid var(--c-border);}
  .stat-num{font-size:34px;}
  .steps{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .compare-card{padding:26px 22px;}
  .guard-grid{grid-template-columns:1fr;}
  .guard-card{flex-direction:column;gap:14px;}
  .faq-item summary{font-size:16px;padding:18px 52px 18px 18px;}
  .faq-body{padding:0 20px 20px 20px;}
  .cta-box h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .gallery{grid-template-columns:1fr;}
  .logo-mark{width:36px;height:36px;font-size:15px;}
  .logo-text b{font-size:15.5px;}
}