/* roulang page: index */
:root{
  --brand-700:#3A22A8;
  --brand-600:#5233E0;
  --brand-500:#6E52F0;
  --brand-grad:linear-gradient(118deg,#5233E0 0%,#8A5CFF 44%,#FF6B3D 100%);
  --accent:#FF6B3D;
  --mint:#16C79A;
  --ink:#16122B;
  --text:#2A2740;
  --muted:#6B6880;
  --line:#E7E4F2;
  --bg:#F8F7FC;
  --card:#FFFFFF;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 8px 24px rgba(58,34,168,.08);
  --sh-2:0 20px 48px rgba(58,34,168,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:134px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(248,247,252,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand-grad);
  display:grid;place-items:center;box-shadow:0 6px 16px rgba(82,51,224,.28);
  flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand-name em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 14px;font-size:15px;font-weight:600;color:var(--muted);
  border-radius:999px;transition:color .25s,background .25s;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600);background:#F1EEFD;}
.nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(82,51,224,.35);}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  border-radius:2px;background:var(--brand-grad);
}
.header-cta{margin-left:8px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-size:15px;font-weight:700;
  border:1.5px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .26s ease-out,box-shadow .26s ease-out,background .26s ease-out,color .26s ease-out,border-color .26s ease-out;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(82,51,224,.35);}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(82,51,224,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:#F3F1FD;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-white{background:#fff;color:var(--brand-600);}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(0,0,0,.22);}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-white:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ============ Hero ============ */
.hero{padding:64px 0 56px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-220px;right:-160px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(138,92,255,.18),transparent 68%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--brand-600);
  box-shadow:var(--sh-1);margin-bottom:22px;
}
.hero-badge .pulse{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(22,199,154,.16);}
.hero h1{
  font-size:clamp(32px,4.2vw,56px);line-height:1.16;font-weight:800;
  letter-spacing:-.02em;color:var(--ink);
}
.h1-grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:var(--muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:30px;}
.trust-item{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--muted);}
.trust-item svg{width:16px;height:16px;stroke:var(--mint);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}

.hero-visual{
  position:relative;padding:10px;border-radius:36px;background:var(--brand-grad);
  box-shadow:var(--sh-2);
}
.hero-visual > img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:27px;
}
.float-badge{
  position:absolute;display:flex;align-items:center;gap:10px;
  background:#fff;border-radius:20px;padding:12px 16px;box-shadow:var(--sh-2);
}
.float-badge .num{font-size:22px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1;}
.float-badge .cap{display:block;font-size:11px;color:var(--muted);line-height:1.3;margin-top:2px;}
.dot{width:9px;height:9px;border-radius:50%;flex-shrink:0;}
.dot-mint{background:var(--mint);box-shadow:0 0 0 4px rgba(22,199,154,.14);}
.dot-accent{background:var(--accent);box-shadow:0 0 0 4px rgba(255,107,61,.14);}
.badge-1{top:-16px;left:-18px;}
.badge-2{bottom:22px;right:-18px;}
.hero-badges-mobile{display:none;}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:68px;z-index:40;
  background:rgba(248,247,252,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);padding:12px 0;
}
.chip-row{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.chip-row::-webkit-scrollbar{display:none;}
.chip{
  flex-shrink:0;padding:8px 18px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--muted);
  transition:color .25s,border-color .25s,background .25s,box-shadow .25s;white-space:nowrap;
}
.chip:hover{color:var(--brand-600);border-color:var(--brand-500);}
.chip:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(82,51,224,.3);}
.chip.is-active{background:var(--brand-grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(82,51,224,.24);}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-size:clamp(26px,3.2vw,40px);line-height:1.22;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.section-sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand-600);transition:gap .25s;}
.link-more:hover{gap:11px;}
.link-more:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(82,51,224,.3);border-radius:8px;}

/* ============ 卖点区 ============ */
.sell-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch;}
.sell-side{display:grid;gap:24px;}
.sell-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .3s ease-out,box-shadow .3s ease-out;
}
.sell-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.sell-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-grad);
  opacity:0;transition:opacity .3s ease-out;z-index:2;
}
.sell-card:hover::before{opacity:1;}
.sell-card.big{display:flex;flex-direction:column;}
.sell-card.big img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.sell-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.sell-body h3{font-size:22px;line-height:1.35;font-weight:700;color:var(--ink);}
.sell-body p{font-size:14.5px;line-height:1.7;color:var(--muted);}
.sell-small{display:flex;gap:16px;padding:24px;}
.icon-box{
  width:44px;height:44px;border-radius:14px;background:#EFEBFF;color:var(--brand-600);
  display:grid;place-items:center;flex-shrink:0;
}
.icon-box svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.sell-small h3{font-size:17px;font-weight:700;color:var(--ink);line-height:1.4;}
.sell-small p{margin-top:6px;font-size:14px;line-height:1.65;color:var(--muted);}
.sell-foot{margin-top:auto;display:flex;align-items:center;gap:8px;padding-top:6px;}
.mini-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;
  color:var(--brand-600);background:#EFEBFF;padding:5px 12px;border-radius:999px;
  font-variant-numeric:tabular-nums;
}

/* ============ 演示区 ============ */
.demo{background:rgba(82,51,224,.045);position:relative;}
.step-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  margin-bottom:56px;
}
.step-row:last-child{margin-bottom:0;}
.step-text{order:1;}
.step-media{order:2;}
.step-row.reverse .step-text{order:2;}
.step-row.reverse .step-media{order:1;}
.step-num{
  width:52px;height:52px;border-radius:50%;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  display:grid;place-items:center;font-size:19px;font-weight:800;color:var(--brand-600);
  font-variant-numeric:tabular-nums;margin-bottom:18px;box-shadow:var(--sh-1);
}
.step-text h3{font-size:22px;line-height:1.35;font-weight:700;color:var(--ink);margin-bottom:10px;}
.step-text p{font-size:15px;line-height:1.8;color:var(--muted);max-width:460px;}
.step-tip{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;font-weight:600;
  color:var(--brand-600);
}
.step-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px;
  box-shadow:inset 0 0 0 1px rgba(22,18,43,.05),var(--sh-1);
}

/* ============ 证据区 ============ */
.proof{background:var(--ink);color:#fff;position:relative;overflow:hidden;}
.proof::before{
  content:"";position:absolute;top:-180px;left:-140px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,86,255,.42),transparent 70%);pointer-events:none;
}
.proof-inner{position:relative;}
.proof .section-title{color:#fff;}
.proof .section-sub{color:rgba(255,255,255,.62);}
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:44px;}
.stat{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);padding:24px;
}
.stat .num{
  font-size:44px;line-height:1.05;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat .cap{margin-top:8px;font-size:12.5px;color:rgba(255,255,255,.62);line-height:1.5;}
.proof-cards{display:flex;gap:20px;overflow-x:auto;padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none;}
.proof-cards::-webkit-scrollbar{display:none;}
.proof-card{
  flex:0 0 calc((100% - 40px)/3);min-width:270px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);padding:24px;display:flex;flex-direction:column;gap:14px;
}
.proof-card p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.82);}
.proof-person{display:flex;align-items:center;gap:10px;margin-top:auto;}
.avatar{
  width:36px;height:36px;border-radius:50%;background:var(--brand-grad);
  display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0;
}
.proof-person span{font-size:13px;color:rgba(255,255,255,.6);}

/* ============ 最新信息 ============ */
.filter-row{display:flex;gap:10px;overflow-x:auto;margin-bottom:28px;scrollbar-width:none;}
.filter-row::-webkit-scrollbar{display:none;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .3s ease-out,box-shadow .3s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-thumb{display:block;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-block;width:fit-content;padding:4px 12px;border-radius:999px;
  background:#EFEBFF;color:var(--brand-600);font-size:12px;font-weight:700;
}
.news-title{font-size:18px;line-height:1.5;font-weight:700;color:var(--ink);}
.news-title a:hover{color:var(--brand-600);}
.news-desc{
  font-size:14px;line-height:1.68;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.news-arrow{font-weight:700;color:var(--brand-600);transition:transform .25s;}
.news-card:hover .news-arrow{transform:translateX(3px);}
.news-empty{
  grid-column:1/-1;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;color:var(--muted);background:#fff;
}
.news-empty svg{width:40px;height:40px;stroke:var(--brand-500);fill:none;stroke-width:1.6;margin:0 auto 14px;}
.news-empty p{font-size:15px;margin-bottom:18px;}

/* ============ 价格区 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);display:flex;flex-direction:column;position:relative;
  transition:transform .3s ease-out,box-shadow .3s ease-out;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.price-card.featured{
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--sh-2);
}
.price-flag{
  position:absolute;top:-13px;left:32px;padding:4px 14px;border-radius:999px;
  background:var(--brand-grad);color:#fff;font-size:12px;font-weight:700;
  box-shadow:0 8px 18px rgba(82,51,224,.28);
}
.price-name{font-size:19px;font-weight:700;color:var(--ink);}
.price-for{margin-top:6px;font-size:13.5px;color:var(--muted);}
.price-num{margin-top:22px;display:flex;align-items:baseline;gap:6px;}
.price-num strong{
  font-size:44px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.price-num span{font-size:13px;color:var(--muted);}
.price-list{margin:24px 0 28px;display:grid;gap:12px;flex:1;}
.price-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.6;color:var(--text);}
.price-list svg{width:18px;height:18px;stroke:var(--mint);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:3px;}
.price-note{margin-top:20px;font-size:13px;color:var(--muted);text-align:center;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  transition:border-color .25s,box-shadow .25s;overflow:hidden;
}
.faq-item:hover{border-color:var(--brand-500);box-shadow:var(--sh-1);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:20px;background:none;border:0;font-size:16px;font-weight:700;color:var(--ink);
  text-align:left;cursor:pointer;line-height:1.55;
}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(82,51,224,.28);border-radius:20px;}
.faq-icon{
  width:32px;height:32px;border-radius:50%;background:#F1EEFD;color:var(--brand-600);
  display:grid;place-items:center;flex-shrink:0;font-size:20px;line-height:1;font-weight:400;
  transition:transform .28s ease-out,background .28s ease-out,color .28s ease-out;
}
.faq-item.is-open .faq-icon{background:var(--brand-grad);color:#fff;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{padding:0 20px 22px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--brand-grad);
  padding:52px;color:#fff;display:flex;align-items:center;justify-content:space-between;
  gap:32px;box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  border:44px solid rgba(255,255,255,.12);pointer-events:none;
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);line-height:1.3;font-weight:800;position:relative;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:520px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:88px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:300px;}
.footer-contact{display:flex;flex-wrap:wrap;gap:16px;margin-top:18px;font-size:13px;color:rgba(255,255,255,.6);}
.footer-contact span{display:inline-flex;align-items:center;gap:6px;}
.footer-contact svg{width:15px;height:15px;stroke:var(--brand-500);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-link{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s,transform .2s;}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;transform:translateX(2px);}
.footer-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.3);border-radius:6px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 悬浮 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:50;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease-out,transform .3s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta .btn{box-shadow:var(--sh-2);}
.float-cta .btn:hover{filter:brightness(1.05);transform:translateY(-3px);}

/* ============ 移动端底部 Tab ============ */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);height:60px;}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;font-weight:600;color:var(--muted);min-height:44px;transition:color .25s;
}
.tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.tab-item.is-active{color:var(--brand-600);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{max-width:560px;}
  .sell-grid{grid-template-columns:1fr;}
  .proof-stats{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto;}
  .price-card.featured{order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .header-cta{margin-left:auto;}
  .tabbar{display:block;}
  body{padding-bottom:88px;}
  .float-cta{right:16px;bottom:76px;}
  .float-cta .btn{padding:12px 20px;font-size:14px;}
  .anchor-bar{top:68px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:40px 0 40px;}
  .hero-sub{font-size:15.5px;}
  .hero h1{font-size:32px;line-height:1.22;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .float-badge{display:none;}
  .hero-badges-mobile{
    display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;
  }
  .hero-badges-mobile .mb-card{
    background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px;
    box-shadow:var(--sh-1);
  }
  .hero-badges-mobile .num{font-size:20px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;}
  .hero-badges-mobile .cap{font-size:11px;color:var(--muted);}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .step-row,.step-row.reverse{grid-template-columns:1fr;gap:20px;margin-bottom:40px;}
  .step-row .step-text,.step-row .step-media,
  .step-row.reverse .step-text,.step-row.reverse .step-media{order:0;}
  .news-grid{grid-template-columns:1fr;}
  .proof-stats{gap:12px;}
  .stat{padding:18px;}
  .stat .num{font-size:34px;}
  .cta-band{padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .price-card{padding:26px;}
  .faq-q{font-size:15px;padding:16px;}
  .faq-a-inner{padding:0 16px 18px;font-size:14.5px;}
  .sell-small{padding:20px;}
  .sell-body{padding:22px;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:520px){
  .brand-name{font-size:16px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;}
  .header-cta{padding:9px 16px;font-size:13px;}
  .hero-badges-mobile{grid-template-columns:1fr 1fr;}
  .proof-stats{grid-template-columns:1fr 1fr;}
}

/* roulang page: article */
:root{
  --brand-700:#3A22A8;--brand-600:#5233E0;--brand-500:#6E52F0;
  --brand-grad:linear-gradient(118deg,#5233E0 0%,#8A5CFF 44%,#FF6B3D 100%);
  --accent:#FF6B3D;--mint:#16C79A;
  --ink:#16122B;--text:#2A2740;--muted:#6B6880;
  --line:#E7E4F2;--bg:#F8F7FC;--card:#FFFFFF;--soft:#EFEBFF;
  --r-sm:12px;--r-md:20px;--r-lg:24px;--r-xl:32px;
  --sh-1:0 8px 24px rgba(58,34,168,.08);--sh-2:0 20px 48px rgba(58,34,168,.16);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;padding-bottom:88px}
@media(min-width:1024px){body{padding-bottom:0}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(82,51,224,.35);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(248,247,252,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--ink)}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--brand-grad);display:grid;place-items:center;
  color:#fff;box-shadow:var(--sh-1);flex:0 0 auto}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.brand-name em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:8px 14px;border-radius:999px;font-size:15px;color:var(--muted);
  transition:color .26s ease-out,background-color .26s ease-out}
.nav-link:hover{color:var(--brand-600);background:#F3F1FD}
.nav-link.is-active{color:var(--brand-600);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-grad)}
.header-cta{margin-left:12px}
@media(max-width:900px){
  .main-nav{display:none}
  .header-cta{margin-left:auto}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;
  font-weight:700;font-size:15px;padding:14px 26px;border:1.5px solid transparent;
  transition:transform .26s ease-out,box-shadow .26s ease-out,background-color .26s ease-out,color .26s ease-out,border-color .26s ease-out}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(82,51,224,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:#F3F1FD;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-white{background:#fff;color:var(--brand-600)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-line-white{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-line-white:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* ---------- chips / tags ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:var(--soft);color:var(--brand-600);font-size:13px;font-weight:700}
.tag:hover{background:var(--brand-grad);color:#fff}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:24px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:#C9C4DB}
.crumb .now{color:var(--text);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:640px){.crumb .now{max-width:180px}}

/* ---------- article layout ---------- */
.article-wrap{padding:20px 0 72px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}
@media(max-width:1024px){.layout{grid-template-columns:1fr;gap:28px}}

.paper{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:36px 40px 40px}
@media(max-width:768px){.paper{padding:24px 18px 28px;border-radius:var(--r-md)}}

.article-head .tag{margin-bottom:16px}
.article-title{font-size:38px;line-height:1.28;font-weight:800;letter-spacing:-.02em;color:var(--ink);margin-bottom:18px}
@media(max-width:768px){.article-title{font-size:26px;line-height:1.35}}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9C4DB}
.head-divider{height:1px;background:var(--line);margin:24px 0 8px}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:32px;color:var(--text)}
.article-body p{margin:0 0 20px}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{color:var(--ink);font-weight:700;letter-spacing:-.01em}
.article-body h1{font-size:26px;line-height:1.4;margin:36px 0 16px}
.article-body h2{position:relative;font-size:24px;line-height:1.42;margin:40px 0 16px;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:999px;background:var(--brand-grad)}
.article-body h3{font-size:20px;line-height:1.5;margin:28px 0 12px}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 22px}
.article-body li{position:relative;padding-left:24px;margin-bottom:10px}
.article-body ul>li::before{content:"";position:absolute;left:4px;top:13px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-grad)}
.article-body ol{counter-reset:olnum}
.article-body ol>li{counter-increment:olnum}
.article-body ol>li::before{content:counter(olnum);position:absolute;left:0;top:0;width:18px;height:18px;
  font-size:12px;font-weight:700;color:var(--brand-600);line-height:18px;text-align:center;border-radius:50%;background:var(--soft)}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:#F3F1FD;border-left:4px solid var(--brand-600);
  border-radius:12px;color:#403A63}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:24px auto}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.article-body a:hover{color:var(--accent)}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body thead th{background:#F3F1FD;color:var(--ink)}
.article-body tbody tr:nth-child(even){background:#FBFAFF}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body strong{color:var(--ink)}

.empty-box{border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;background:#FBFAFF}
.empty-box svg{width:44px;height:44px;margin:0 auto 16px;display:block;fill:none;stroke:var(--brand-500);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-box h2{font-size:20px;color:var(--ink);margin-bottom:8px;font-weight:700}
.empty-box p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- article foot ---------- */
.article-foot{margin-top:36px;padding-top:28px;border-top:1px solid var(--line)}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:520px){
  .foot-actions .btn{width:100%}
}

/* ---------- sidebar ---------- */
.side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
@media(max-width:1024px){.side{position:static}}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.side-title{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:999px;background:var(--brand-grad)}
.toc-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;font-size:14px;color:var(--muted);
  transition:background-color .26s ease-out,color .26s ease-out}
.toc-link:hover{background:#F3F1FD;color:var(--brand-600)}
.toc-link span.i{width:6px;height:6px;border-radius:50%;background:#C9C4DB;flex:0 0 auto}
.toc-link:hover span.i{background:var(--brand-600)}
.mini-post{display:flex;gap:12px;padding:10px;border-radius:14px;transition:background-color .26s ease-out}
.mini-post:hover{background:#FBFAFF}
.mini-post img{width:64px;height:52px;border-radius:10px;object-fit:cover;flex:0 0 auto}
.mini-post .t{font-size:14px;font-weight:700;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-post .d{font-size:12px;color:var(--muted);margin-top:4px}
.side-cta{background:var(--brand-grad);border-radius:var(--r-lg);padding:24px;color:#fff;box-shadow:var(--sh-2)}
.side-cta h3{font-size:18px;font-weight:800;margin-bottom:8px}
.side-cta p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.88);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- related ---------- */
.related{padding:0 0 72px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.related-head h2{font-size:28px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.related-head p{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.related-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){
  .related-grid{display:flex;overflow-x:auto;gap:16px;scroll-snap-type:x mandatory;padding-bottom:8px}
  .related-grid::-webkit-scrollbar{display:none}
  .related-grid>*{flex:0 0 82%;scroll-snap-align:start}
}
.rel-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .3s ease-out,box-shadow .3s ease-out;display:block}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
.rel-card:hover img{transform:scale(1.03)}
.rel-card .body{padding:18px 20px 20px}
.rel-card .t{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .d{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .m{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.rel-card .m svg{width:16px;height:16px;fill:none;stroke:var(--brand-600);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* ---------- cta banner ---------- */
.cta-banner{padding:0 0 80px}
.cta-inner{position:relative;overflow:hidden;background:var(--brand-grad);border-radius:var(--r-xl);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-2)}
.cta-inner::after{content:"";position:absolute;right:-70px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:rgba(255,255,255,.14)}
.cta-inner::before{content:"";position:absolute;right:60px;bottom:-120px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.10)}
.cta-text{position:relative;z-index:1;max-width:560px}
.cta-text h2{font-size:30px;line-height:1.35;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:-.01em}
.cta-text p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.9)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:900px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:36px 24px;border-radius:var(--r-lg)}
  .cta-text h2{font-size:24px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-name{font-size:18px;font-weight:800;color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;margin-bottom:18px}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-contact span{display:flex;align-items:center;gap:8px}
.footer-contact svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:5px 0;transition:color .26s ease-out}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- mobile tab ---------- */
.mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr)}
.tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:44px;font-size:11px;color:var(--muted);transition:color .26s ease-out}
.tab-ico{width:28px;height:28px;border-radius:10px;display:grid;place-items:center;transition:background .26s ease-out,color .26s ease-out}
.tab-ico svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand-600);font-weight:700}
.tab-item.is-active .tab-ico{background:var(--brand-grad);color:#fff}
@media(min-width:1024px){.mobile-tab{display:none}}

/* ---------- float cta ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:65;display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;border-radius:999px;background:var(--brand-grad);color:#fff;font-weight:700;font-size:15px;
  box-shadow:var(--sh-2);opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .26s ease-out,transform .26s ease-out,filter .26s ease-out}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{filter:brightness(1.05);transform:translateY(-3px)}
.float-cta svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:1023px){
  .float-cta{right:16px;bottom:76px;height:48px;padding:0 18px;font-size:14px}
}

/* roulang page: category1 */
:root{
  --brand-700:#3A22A8;
  --brand-600:#5233E0;
  --brand-500:#6E52F0;
  --brand-grad:linear-gradient(118deg,#5233E0 0%,#8A5CFF 44%,#FF6B3D 100%);
  --accent:#FF6B3D;
  --mint:#16C79A;
  --ink:#16122B;
  --text:#2A2740;
  --muted:#6B6880;
  --line:#E7E4F2;
  --bg:#F8F7FC;
  --card:#FFFFFF;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 8px 24px rgba(58,34,168,.08);
  --sh-2:0 20px 48px rgba(58,34,168,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;cursor:pointer;color: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(82,51,224,.35);border-radius:10px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(248,247,252,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-grad);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(82,51,224,.28);
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.brand-name{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-name em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;
  padding:9px 14px;font-size:15px;font-weight:600;color:var(--muted);
  border-radius:999px;
  transition:color .24s ease-out,background-color .24s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand-grad);
  transform:scaleX(0);transform-origin:left;
  transition:transform .26s ease-out;
}
.nav-link:hover{color:var(--brand-600);background:#F1EEFB}
.nav-link.is-active{color:var(--brand-600)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-cta{margin-left:8px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  border:1.5px solid transparent;
  transition:transform .26s ease-out,box-shadow .26s ease-out,background-color .26s ease-out,color .26s ease-out,border-color .26s ease-out;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(82,51,224,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(82,51,224,.24)}
.btn-ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:#F3F1FD;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--brand-600)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(22,18,43,.22)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-sm{padding:11px 20px;font-size:14px}

/* ---------- Hero ---------- */
.hero{padding:56px 0 48px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(138,92,255,.16),rgba(138,92,255,0) 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center;position:relative}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--brand-600);
  box-shadow:var(--sh-1);
}
.hero-badge svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.hero h1{
  margin:20px 0 18px;
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.hero h1 .grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:580px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px}
.fact{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--muted);font-weight:500}
.fact i{width:8px;height:8px;border-radius:50%;background:var(--mint);display:inline-block;flex-shrink:0}
.fact:nth-child(2) i{background:var(--accent)}
.fact:nth-child(3) i{background:var(--brand-600)}
.hero-media{position:relative}
.media-frame{padding:6px;border-radius:var(--r-xl);background:var(--brand-grad);box-shadow:var(--sh-2)}
.media-frame img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:calc(var(--r-xl) - 6px);
}
.media-badge{
  position:absolute;left:-16px;bottom:18px;
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:18px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);
}
.media-badge .num{
  font-size:22px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.media-badge .txt{font-size:12.5px;color:var(--muted);line-height:1.5}

/* ---------- 板块通用 ---------- */
.section{padding:76px 0}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);
  letter-spacing:.04em;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--brand-grad)}
.section-head h2{
  margin:12px 0 12px;
  font-size:clamp(25px,2.6vw,34px);
  line-height:1.3;font-weight:800;letter-spacing:-.01em;color:var(--ink);
}
.section-sub{font-size:16px;line-height:1.85;color:var(--muted)}
.section-soft{background:rgba(82,51,224,.04)}

/* ---------- 入口步骤列表 ---------- */
.entry-list{display:flex;flex-direction:column;gap:16px}
.entry-row{
  display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center;
  padding:18px;border-radius:var(--r-lg);
  background:var(--card);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:background-color .28s ease-out,transform .28s ease-out,box-shadow .28s ease-out,border-color .28s ease-out;
}
.entry-row:hover{background:#FBFAFF;border-color:#D6CEF7;transform:translateY(-2px);box-shadow:var(--sh-2)}
.entry-thumb{border-radius:16px;overflow:hidden;background:#EFEBFF}
.entry-thumb img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px}
.entry-body{min-width:0}
.entry-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:9px;
  background:#EFEBFF;color:var(--brand-600);
  font-size:12.5px;font-weight:800;font-variant-numeric:tabular-nums;
  margin-right:10px;
}
.entry-title{font-size:18px;font-weight:700;color:var(--ink);display:flex;align-items:center;line-height:1.5}
.entry-desc{
  margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-arrow{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;flex-shrink:0;
  background:#F4F2FB;color:var(--brand-600);
  transition:transform .26s ease-out,background-color .26s ease-out,color .26s ease-out;
}
.entry-arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.entry-row:hover .entry-arrow{transform:translateX(4px);background:var(--brand-grad);color:#fff}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.prep-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh-1);
}
.prep-card h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:6px}
.prep-card .prep-note{font-size:14px;color:var(--muted);margin-bottom:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--line);
  font-size:15px;line-height:1.75;color:var(--text);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list li svg{
  width:20px;height:20px;flex-shrink:0;margin-top:3px;
  fill:none;stroke:var(--mint);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;
}
.check-list li b{font-weight:700;color:var(--ink)}
.prep-media{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--line);background:#fff}
.prep-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- 提醒问答 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.qa-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .28s ease-out,box-shadow .28s ease-out,border-color .28s ease-out;
}
.qa-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFC5F2}
.qa-tag{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:#EFEBFF;color:var(--brand-600);
  font-size:12.5px;font-weight:700;margin-bottom:14px;
}
.qa-card h3{font-size:16.5px;font-weight:700;line-height:1.6;color:var(--ink);margin-bottom:10px}
.qa-card p{font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ---------- 其他分类 ---------- */
.cross{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 28px;box-shadow:var(--sh-1);
}
.cross-title{font-size:15px;font-weight:700;color:var(--ink)}
.cross-title span{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-top:3px}
.cross-links{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  background:#EFEBFF;color:var(--brand-600);
  font-size:14px;font-weight:600;
  transition:background .26s ease-out,color .26s ease-out,transform .26s ease-out,box-shadow .26s ease-out;
}
.chip svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.chip:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(82,51,224,.24)}
.chip.is-current{background:var(--brand-grad);color:#fff;box-shadow:0 10px 22px rgba(82,51,224,.22)}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-grad);
  border-radius:var(--r-xl);
  padding:46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.24);
}
.cta-band::before{width:280px;height:280px;top:-120px;right:-60px}
.cta-band::after{width:180px;height:180px;top:-60px;right:10px}
.cta-band h2{
  position:relative;z-index:1;
  font-size:clamp(23px,2.4vw,30px);line-height:1.35;font-weight:800;color:#fff;letter-spacing:-.01em;
}
.cta-band p{position:relative;z-index:1;margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);max-width:560px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-name em{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.footer-contact span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66)}
.footer-contact svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.68);
  padding:6px 0;
  transition:color .24s ease-out,transform .24s ease-out;
}
.footer-link:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.52);
}

/* ---------- 悬浮 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:50;
  display:inline-flex;align-items:center;gap:8px;
  padding:15px 24px;border-radius:999px;
  background:var(--brand-grad);color:#fff;
  font-size:14.5px;font-weight:700;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease-out,transform .3s ease-out,visibility .3s;
}
.float-cta svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{transform:translateY(-3px);filter:brightness(1.05)}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{padding:40px 0 36px}
  .prep-grid{grid-template-columns:1fr;gap:28px}
  .qa-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:60px 0}
}
@media (max-width:860px){
  .main-nav{display:none}
  .header-cta{margin-left:auto}
  .header-inner{height:64px;gap:16px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:150px}
}
@media (max-width:768px){
  body{padding-bottom:86px}
  .container{padding:0 16px}
  .hero h1{font-size:31px;line-height:1.28}
  .hero-lead{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .media-badge{left:10px;bottom:12px;padding:10px 14px}
  .entry-row{grid-template-columns:104px 1fr auto;gap:14px;padding:14px}
  .entry-title{font-size:16px;align-items:flex-start;flex-wrap:wrap;gap:6px}
  .entry-index{width:22px;height:22px;font-size:11.5px;margin-right:6px}
  .entry-desc{font-size:13.5px;line-height:1.7;margin-top:6px}
  .entry-arrow{width:32px;height:32px}
  .entry-arrow svg{width:15px;height:15px}
  .qa-grid{grid-template-columns:1fr}
  .cross{flex-direction:column;align-items:flex-start;padding:22px 20px}
  .cross-links{width:100%}
  .chip{padding:9px 15px;font-size:13.5px}
  .float-cta{right:16px;bottom:76px;padding:12px 18px;font-size:13.5px}
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;font-size:12.5px}
  .section{padding:52px 0}

  .mobile-tab{
    display:flex;
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:calc(60px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
    box-shadow:0 -6px 22px rgba(58,34,168,.08);
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    min-width:44px;min-height:44px;
    font-size:11.5px;font-weight:600;color:var(--muted);
    transition:color .24s ease-out;
  }
  .tab-item svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;transition:stroke .24s ease-out}
  .tab-item.is-active{color:var(--brand-600)}
  .tab-item.is-active svg{stroke:var(--brand-600)}
}
@media (max-width:520px){
  .brand-name{font-size:16px}
  .brand-mark{width:30px;height:30px;border-radius:10px}
  .brand-mark svg{width:18px;height:18px}
  .header-cta{padding:9px 15px;font-size:13px}
  .hero h1{font-size:27px}
  .media-badge .num{font-size:19px}
  .media-badge .txt{font-size:11.5px}
  .entry-row{grid-template-columns:84px 1fr auto;gap:12px}
  .entry-desc{-webkit-line-clamp:3}
  .cta-band{padding:30px 22px}
  .cta-actions .btn{width:100%;flex:none}
  .footer-brand .brand-name{font-size:17px}
}

/* roulang page: category2 */
:root{
  --brand-700:#3A22A8;
  --brand-600:#5233E0;
  --brand-500:#6E52F0;
  --brand-grad:linear-gradient(118deg,#5233E0 0%,#8A5CFF 44%,#FF6B3D 100%);
  --accent:#FF6B3D;
  --mint:#16C79A;
  --ink:#16122B;
  --text:#2A2740;
  --muted:#6B6880;
  --line:#E7E4F2;
  --bg:#F8F7FC;
  --card:#FFFFFF;
  --soft:#EFEBFF;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 8px 24px rgba(58,34,168,.08);
  --sh-2:0 20px 48px rgba(58,34,168,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
.site-body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.site-body img{display:block;max-width:100%;height:auto;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button{font-family:inherit;cursor:pointer;}
.site-body ul{margin:0;padding:0;list-style:none;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p{margin:0;}
.num{font-variant-numeric:tabular-nums;}

.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;
  border:1.5px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  line-height:1;
  padding:14px 26px;
  transition:transform .28s ease-out,box-shadow .28s ease-out,background-color .28s ease-out,color .28s ease-out,border-color .28s ease-out;
  white-space:nowrap;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(82,51,224,.35);}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 26px rgba(82,51,224,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-600);}
.btn-ghost:hover{background:#F3F1FD;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(248,247,252,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;
  border-radius:12px;
  background:var(--brand-grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(82,51,224,.28);
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.brand-name{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  line-height:1;
}
.brand-name em{
  font-style:normal;
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  padding:8px 2px;
  transition:color .26s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand-grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s ease-out;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-cta{flex-shrink:0;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin:0 auto 40px;text-align:center;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;
  color:var(--brand-600);
  background:var(--soft);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:18px;
}
.section-title{
  font-size:40px;
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink);
}
.section-sub{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  padding:76px 0 40px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:-120px 0 auto 0;
  height:520px;
  background:
    radial-gradient(560px 320px at 18% 12%,rgba(82,51,224,.14),transparent 70%),
    radial-gradient(520px 300px at 84% 6%,rgba(255,107,61,.13),transparent 72%);
  pointer-events:none;
}
.cat-hero .container{position:relative;}
.hero-center{max-width:860px;margin:0 auto;text-align:center;}
.eyebrow-pill{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 16px;
  font-size:13px;
  font-weight:700;
  color:var(--text);
  box-shadow:var(--sh-1);
}
.eyebrow-pill i{
  width:8px;height:8px;border-radius:50%;
  background:var(--brand-grad);
  display:inline-block;
}
.hero-title{
  margin-top:22px;
  font-size:52px;
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.hero-title .grad{
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin:20px auto 0;
  max-width:660px;
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
}
.filter-chips{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
  margin-top:30px;
}
.chip{
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;
  font-weight:600;
  transition:background .26s ease-out,color .26s ease-out,border-color .26s ease-out,transform .26s ease-out,box-shadow .26s ease-out;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px);}
.chip:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(82,51,224,.35);}
.chip.is-on{
  background:var(--brand-grad);
  border-color:transparent;
  color:#fff;
  box-shadow:0 10px 24px rgba(82,51,224,.24);
}

/* ============ Hero 图卡 ============ */
.hero-shot-wrap{
  position:relative;
  margin-top:48px;
  padding:2px;
  border-radius:calc(var(--r-xl) + 2px);
  background:var(--brand-grad);
  box-shadow:var(--sh-2);
}
.hero-shot{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  background:#fff;
}
.hero-shot img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
}
.hero-shot::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,18,43,0) 40%,rgba(22,18,43,.55) 100%);
}
.hero-shot-caption{
  position:absolute;
  left:28px;right:28px;bottom:22px;
  z-index:2;
  color:#fff;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  text-shadow:0 2px 12px rgba(22,18,43,.4);
}
.hero-badges{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin-top:20px;
}
.h-badge{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px 16px;
  box-shadow:var(--sh-1);
  display:flex;
  align-items:center;
  gap:12px;
  transition:transform .28s ease-out,box-shadow .28s ease-out;
}
.h-badge:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.h-badge i{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
.h-badge i.dot-mint{background:var(--mint);}
.h-badge i.dot-acc{background:var(--accent);}
.h-badge strong{
  font-size:20px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.h-badge span{font-size:12.5px;color:var(--muted);line-height:1.4;}

/* ============ 功能卡网格 ============ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.feature-card{
  position:relative;
  overflow:hidden;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px 30px 28px;
  box-shadow:var(--sh-1);
  transition:transform .3s ease-out,box-shadow .3s ease-out,border-color .3s ease-out;
}
.feature-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:var(--brand-grad);
  opacity:.9;
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(82,51,224,.28);
}
.feature-num{
  position:absolute;
  right:18px;
  bottom:-6px;
  font-size:88px;
  line-height:1;
  font-weight:800;
  letter-spacing:-.04em;
  color:rgba(82,51,224,.06);
  font-variant-numeric:tabular-nums;
  pointer-events:none;
  user-select:none;
}
.feature-icon{
  width:46px;height:46px;
  border-radius:14px;
  background:var(--soft);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-600);
  margin-bottom:18px;
}
.feature-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.feature-h3{
  font-size:21px;
  line-height:1.4;
  font-weight:700;
  color:var(--ink);
  margin-bottom:10px;
  position:relative;
  z-index:1;
}
.feature-text{
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
  position:relative;
  z-index:1;
}
.feature-list{margin-top:16px;position:relative;z-index:1;}
.feature-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text);
  margin-bottom:6px;
}
.feature-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand-grad);
  opacity:.85;
}
.feature-tagline{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:18px;
  font-size:13px;
  font-weight:700;
  color:var(--brand-600);
  background:var(--soft);
  border-radius:999px;
  padding:5px 13px;
  position:relative;
  z-index:1;
}
.is-hidden{display:none !important;}

/* ============ 玩法组合 ============ */
.play-section{
  background:rgba(82,51,224,.04);
  border-top:1px solid rgba(82,51,224,.08);
  border-bottom:1px solid rgba(82,51,224,.08);
}
.play-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.play-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .3s ease-out,box-shadow .3s ease-out;
}
.play-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.play-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.play-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;}
.play-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand-600);
  margin-bottom:10px;
}
.play-meta span{
  background:var(--soft);
  border-radius:999px;
  padding:4px 12px;
}
.play-h3{font-size:19px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:8px;}
.play-text{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:18px;}
.progress{height:6px;border-radius:999px;background:#EFECFA;overflow:hidden;margin-top:auto;}
.progress-bar{height:100%;border-radius:999px;background:var(--brand-grad);}
.progress-label{
  display:flex;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--muted);
  margin-top:8px;
  font-variant-numeric:tabular-nums;
}

/* ============ 上手步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .3s ease-out,box-shadow .3s ease-out;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-no{
  width:48px;height:48px;
  border-radius:50%;
  background:#fff;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:800;
  color:var(--brand-600);
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.step-h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.5;}
.step-text{font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  box-shadow:var(--sh-1);
  transition:border-color .28s ease-out,box-shadow .28s ease-out;
  overflow:hidden;
}
.faq-item:hover{border-color:var(--brand-500);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  background:none;
  border:0;
  text-align:left;
  padding:20px 22px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  line-height:1.6;
}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(82,51,224,.35);border-radius:var(--r-md);}
.faq-icon{
  flex-shrink:0;
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-600);
  transition:transform .28s ease-out,background .28s ease-out,color .28s ease-out,border-color .28s ease-out;
}
.faq-icon svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;}
.faq-item.is-open .faq-icon{
  background:var(--brand-grad);
  border-color:transparent;
  color:#fff;
  transform:rotate(45deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease-out;
}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}

/* ============ 交叉链接 ============ */
.cross-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:center;
  margin-top:28px;
}
.cross-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:11px 20px;
  font-size:14.5px;
  font-weight:600;
  color:var(--text);
  box-shadow:var(--sh-1);
  transition:transform .28s ease-out,box-shadow .28s ease-out,background .28s ease-out,color .28s ease-out,border-color .28s ease-out;
}
.cross-pill:hover{
  background:var(--brand-grad);
  color:#fff;
  border-color:transparent;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.cross-pill svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ CTA 横幅 ============ */
.cta-band{padding:0 0 88px;}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--brand-grad);
  padding:56px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  border:36px solid rgba(255,255,255,.12);
  pointer-events:none;
}
.cta-title{
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
}
.cta-sub{
  margin-top:12px;
  font-size:15.5px;
  line-height:1.8;
  color:rgba(255,255,255,.86);
  max-width:520px;
}
.cta-actions{display:flex;gap:14px;flex-shrink:0;position:relative;z-index:1;}
.btn-white{background:#fff;color:var(--brand-600);}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(22,18,43,.28);}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.footer-contact span{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}
.footer-contact svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-link{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.7);
  margin-bottom:11px;
  transition:color .26s ease-out,transform .26s ease-out;
  width:fit-content;
}
.footer-link:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 悬浮 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:40;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 22px;
  border-radius:999px;
  background:var(--brand-grad);
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  box-shadow:var(--sh-2);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .3s ease-out,transform .3s ease-out,filter .3s ease-out;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{transform:translateY(-3px);filter:brightness(1.05);}
.float-cta svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 移动底部 Tab ============ */
.mobile-tab{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:60;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  grid-template-columns:repeat(4,1fr);
}
.tab-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  min-height:44px;
  font-size:11px;
  font-weight:600;
  color:var(--muted);
  transition:color .24s ease-out;
}
.tab-item svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.tab-item.is-active{color:var(--brand-600);}
.tab-item.is-active svg{stroke:url(#tabGrad);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .main-nav{gap:18px;}
  .nav-link{font-size:14px;}
  .hero-title{font-size:42px;}
  .section{padding:72px 0;}
  .section-title{font-size:34px;}
  .play-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .play-grid > :last-child{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-card{padding:44px 36px;}
  .cta-title{font-size:28px;}
  .hero-badges{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:860px){
  .site-body{padding-bottom:88px;}
  .main-nav{display:none;}
  .mobile-tab{display:grid;}
  .float-cta{bottom:76px;right:16px;padding:13px 18px;font-size:13.5px;}
  .hero-title{font-size:34px;line-height:1.22;}
  .hero-lead{font-size:16px;}
  .cat-hero{padding:52px 0 24px;}
  .feature-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .play-grid{grid-template-columns:1fr;}
  .play-grid > :last-child{grid-column:auto;}
  .section{padding:56px 0;}
  .section-title{font-size:28px;}
  .section-head{margin-bottom:28px;}
  .cta-card{flex-direction:column;text-align:center;padding:36px 24px;gap:24px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .cta-band{padding-bottom:56px;}
  .hero-shot img{aspect-ratio:16/9;}
  .hero-shot-caption{left:16px;right:16px;bottom:14px;font-size:13.5px;}
  .feature-card{padding:26px 22px 24px;}
  .feature-num{font-size:68px;right:12px;}
  .faq-q{font-size:15px;padding:17px 18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .header-inner{height:62px;gap:12px;}
  .brand-name{font-size:16px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;}
  .brand-mark svg{width:19px;height:19px;}
  .header-cta{padding:9px 14px;font-size:13px;}
  .hero-title{font-size:29px;}
  .hero-lead{font-size:15px;}
  .eyebrow-pill{font-size:12px;padding:6px 13px;}
  .hero-badges{grid-template-columns:1fr;}
  .filter-chips{gap:8px;}
  .chip{font-size:13px;padding:8px 14px;}
  .section-title{font-size:24px;}
  .feature-h3{font-size:19px;}
  .cta-title{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .cross-pill{font-size:13.5px;padding:10px 16px;}
  .float-cta{font-size:13px;padding:12px 16px;}
}

/* roulang page: category3 */
:root{
  --brand-700:#3A22A8;
  --brand-600:#5233E0;
  --brand-500:#6E52F0;
  --brand-grad:linear-gradient(118deg,#5233E0 0%,#8A5CFF 44%,#FF6B3D 100%);
  --accent:#FF6B3D;
  --mint:#16C79A;
  --ink:#16122B;
  --text:#2A2740;
  --muted:#6B6880;
  --line:#E7E4F2;
  --bg:#F8F7FC;
  --card:#FFFFFF;
  --soft:#F3F1FD;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 8px 24px rgba(58,34,168,.08);
  --sh-2:0 20px 48px rgba(58,34,168,.16);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(82,51,224,.35);outline-offset:3px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}

/* 容器 */
body .container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(248,247,252,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  background:var(--brand-grad);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh-1);
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.brand-name em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 13px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--muted);
  transition:color .24s ease,background .24s ease;
}
.nav-link:hover{color:var(--brand-600);background:#EFEBFF}
.nav-link.is-active{color:var(--brand-600)}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand-grad);
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;
  padding:14px 26px;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .26s ease,box-shadow .26s ease,background .26s ease,color .26s ease,border-color .26s ease;
  text-align:center;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(82,51,224,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--brand-600);color:var(--brand-600)}
.btn-outline:hover{background:var(--soft);transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-2px)}
.btn-sm{padding:11px 20px;font-size:14px}
.header-cta{flex:none}

/* Hero */
.hero{position:relative;padding:68px 0 52px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-180px;right:-140px;width:560px;height:560px;
  background:radial-gradient(circle at 50% 50%,rgba(138,92,255,.22),rgba(255,107,61,.10) 52%,transparent 72%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 15px;font-size:13px;font-weight:600;color:var(--brand-600);
  box-shadow:var(--sh-1);margin-bottom:20px;
}
.eyebrow i{width:8px;height:8px;border-radius:999px;background:var(--mint);display:inline-block}
.hero h1{
  font-size:clamp(30px,4vw,50px);line-height:1.14;font-weight:800;
  letter-spacing:-.02em;color:var(--ink);margin-bottom:20px;
}
.grad-text{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:580px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.mini-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:13px;font-weight:600;color:var(--muted);
}
.mini-tag svg{width:15px;height:15px;fill:none;stroke:var(--brand-600);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.hero-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:22px;box-shadow:var(--sh-2);
}
.panel-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.panel-title span{font-size:12px;font-weight:600;color:var(--brand-600);background:#EFEBFF;border-radius:999px;padding:3px 10px}
.search-shell{
  display:flex;align-items:center;gap:10px;
  background:#FBFAFF;border:1px solid var(--line);border-radius:999px;
  padding:7px 7px 7px 16px;transition:border-color .24s ease,box-shadow .24s ease;
}
.search-shell:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(82,51,224,.12)}
.search-shell svg{width:18px;height:18px;flex:none;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.search-shell input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);padding:8px 0;
}
.search-shell input::placeholder{color:#9C99AE}
.search-chip{
  flex:none;border-radius:999px;background:var(--brand-grad);color:#fff;
  font-size:13px;font-weight:700;padding:9px 16px;border:0;cursor:default;
}
.hero-shot{margin-top:18px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg)}

/* 板块通用 */
.section{padding:72px 0}
.section-soft{background:rgba(82,51,224,.04)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:800;letter-spacing:-.015em;color:var(--ink);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:16px;line-height:1.85}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.04em;margin-bottom:12px}
.kicker::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--brand-grad)}

/* 自查区块 */
.check-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.check-figure{border-radius:var(--r-xl);padding:8px;background:var(--brand-grad);box-shadow:var(--sh-2)}
.check-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:26px}
.check-list{display:grid;gap:14px;margin:22px 0 26px}
.check-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sh-1);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D9D2FA}
.check-item .idx{
  flex:none;width:34px;height:34px;border-radius:12px;background:var(--soft);
  color:var(--brand-600);font-weight:800;font-size:14px;display:grid;place-items:center;
}
.check-item h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:4px}
.check-item p{font-size:14px;line-height:1.8;color:var(--muted)}

/* FAQ 分组 */
.faq-groups{display:grid;gap:44px}
.faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.faq-group-head h2{font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.faq-group-head::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand-grad);flex:none}
.faq-group-head .count{font-size:12px;font-weight:700;color:var(--brand-600);background:#EFEBFF;border-radius:999px;padding:4px 11px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .26s ease,box-shadow .26s ease;
}
.faq-item:hover{border-color:#CFC6F8;box-shadow:0 12px 28px rgba(58,34,168,.10)}
.faq-item.is-open{border-color:#CFC6F8;box-shadow:var(--sh-2)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:16px 18px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:15px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-icon{
  flex:none;width:32px;height:32px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand-600);
  transition:transform .26s ease,background .26s ease,color .26s ease,border-color .26s ease;
}
.faq-icon svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.faq-item.is-open .faq-icon{background:var(--brand-grad);color:#fff;border-color:transparent;transform:rotate(45deg)}
.faq-body{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-body-inner{padding:0 18px 18px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-body-inner strong{color:var(--text);font-weight:700}

/* 互链 */
.cross-band{
  margin-top:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:26px 28px;box-shadow:var(--sh-1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.cross-band h2{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:4px}
.cross-band p{font-size:14px;color:var(--muted)}
.cross-links{display:flex;flex-wrap:wrap;gap:10px}
.pill-link{
  display:inline-flex;align-items:center;gap:8px;
  background:#EFEBFF;color:var(--brand-600);border-radius:999px;
  padding:10px 18px;font-size:14px;font-weight:700;
  transition:background .26s ease,color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.pill-link:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.pill-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* 底部提示条 */
.tip-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--brand-grad);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.tip-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;
  border-radius:999px;border:28px solid rgba(255,255,255,.14);
}
.tip-band h2{position:relative;font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;line-height:1.3;margin-bottom:8px}
.tip-band p{position:relative;color:rgba(255,255,255,.88);font-size:15px;max-width:600px}
.tip-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px}
.btn-white{background:#fff;color:var(--brand-600)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(22,18,43,.24)}
.btn-line{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:330px;margin-bottom:18px}
.footer-contact{display:grid;gap:10px;font-size:13.5px;color:rgba(255,255,255,.62)}
.footer-contact span{display:flex;align-items:center;gap:9px}
.footer-contact svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none;opacity:.85}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.68);padding:5px 0;transition:color .24s ease,transform .24s ease}
.footer-link:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.52);
}

/* 悬浮 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:50;
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 22px;border-radius:999px;
  background:var(--brand-grad);color:#fff;font-size:14px;font-weight:700;
  box-shadow:var(--sh-2);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,filter .26s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{filter:brightness(1.06);transform:translateY(-3px)}
.float-cta svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* 移动底栏 */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  grid-template-columns:repeat(4,1fr);
  height:60px;
}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;font-weight:600;color:var(--muted);min-height:44px;min-width:44px;
  transition:color .24s ease;
}
.tab-ico{
  width:30px;height:26px;display:grid;place-items:center;border-radius:9px;
  transition:background .24s ease,color .24s ease;
}
.tab-ico svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand-600)}
.tab-item.is-active .tab-ico{background:var(--brand-grad);color:#fff}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:100%}
  .check-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-link{padding:9px 9px;font-size:14px}
  .nav-link.is-active::after{left:9px;right:9px}
}
@media (max-width:860px){
  .header-inner{gap:12px}
  .main-nav{gap:0}
  .brand-name{font-size:16px}
  .header-cta{display:none}
}
@media (max-width:768px){
  body .container{padding-left:16px;padding-right:16px}
  .main-nav{display:none}
  .mobile-tab{display:grid}
  body{padding-bottom:88px}
  .hero{padding:44px 0 36px}
  .hero h1{font-size:32px;line-height:1.2}
  .hero-sub{font-size:15.5px;line-height:1.85}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section{padding:52px 0}
  .section-head{margin-bottom:26px}
  .check-figure img{aspect-ratio:16/11}
  .faq-q{padding:15px 14px;font-size:14.5px}
  .faq-body-inner{padding:0 14px 16px;font-size:14.5px}
  .cross-band{padding:20px;flex-direction:column;align-items:flex-start}
  .tip-band{padding:30px 22px;text-align:left}
  .tip-actions{width:100%}
  .tip-actions .btn{width:100%}
  .site-footer{padding:48px 0 22px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .float-cta{right:16px;bottom:76px;height:48px;padding:0 18px;font-size:13px}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .hero-panel{padding:16px;border-radius:24px}
  .search-chip{display:none}
  .footer-brand .brand-name{font-size:16px}
}