/* roulang page: index */
:root{
  --base:#070B14;
  --layer-1:#0C1322;
  --layer-2:#121C30;
  --brand:#2E86FF;
  --accent:#16E0C4;
  --warm:#FFB342;
  --glass:rgba(18,28,48,.62);
  --text-1:#E9F0FB;
  --text-2:#9FB0C9;
  --text-3:#6C7D96;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.3);
  --inset:inset 0 1px 0 rgba(255,255,255,.08);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.28);
  --sh-2:0 14px 36px rgba(0,0,0,.42);
  --glow:0 8px 28px rgba(46,134,255,.38);
  --glow-hover:0 12px 38px rgba(46,134,255,.55);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --gutter:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--base);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a{color:var(--brand);text-decoration:none;background-color:transparent;transition:color .2s ease;}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
::selection{background:rgba(46,134,255,.35);color:#fff;}

/* Foundation 覆盖 */
body,html,.button,button,input,select,textarea{font-family:var(--font);}
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;}
.grid-x>.cell{padding-left:var(--gutter);padding-right:var(--gutter);}
.grid-x.grid-padding-x{margin-left:calc(var(--gutter) * -1);margin-right:calc(var(--gutter) * -1);}
a:not(.btn):not(.link-arrow){color:var(--brand);}
.button{background:var(--brand);border-radius:var(--r-s);}
.accordion{background:transparent;border:0;}
.accordion-title{background:transparent;}
.accordion-content{background:transparent;border:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:.01em;}
.logo:hover{color:var(--text-1);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;color:#04101f;font-size:16px;
  box-shadow:0 6px 18px rgba(46,134,255,.35);
}
.logo-text b{font-weight:800;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;color:var(--text-2);font-size:15px;padding:6px 0;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--accent);transition:width .25s ease;
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,.nav-links a.is-active::after{width:100%;}
.nav-links a.is-active{color:var(--text-1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-s);
  border:1px solid var(--line);background:rgba(18,28,48,.6);color:var(--text-1);
  cursor:pointer;align-items:center;justify-content:center;font-size:17px;
}
.burger:hover{border-color:var(--accent);color:var(--accent);}

/* 移动端面板 */
.mask{position:fixed;inset:0;background:rgba(4,8,16,.66);opacity:0;visibility:hidden;transition:.28s;z-index:70;}
.mask.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);z-index:80;
  background:var(--layer-1);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px 22px 26px;
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-panel .panel-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.panel-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text-1);cursor:pointer;}
.panel-close:hover{border-color:var(--accent);color:var(--accent);}
.mobile-links{display:flex;flex-direction:column;gap:4px;padding:22px 0;flex:1;}
.mobile-links a{font-size:18px;color:var(--text-1);padding:12px 4px;border-bottom:1px solid rgba(120,160,255,.08);}
.mobile-links a:hover,.mobile-links a.is-active{color:var(--accent);}
.mobile-panel .btn{width:100%;}

/* ===== 按钮 / 标签 / 链接 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04101f;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--glow-hover);color:#04101f;}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--glow);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-size:14.5px;font-weight:600;}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(3px);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.04em;border:1px solid var(--line);
  color:var(--accent);background:rgba(22,224,196,.08);
}
.badge-warm{color:var(--warm);background:rgba(255,179,66,.1);border-color:rgba(255,179,66,.32);}
.tag{display:inline-flex;padding:4px 10px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;color:var(--text-2);border:1px solid var(--line);}
.num{font-variant-numeric:tabular-nums;}

/* ===== 板块通用 ===== */
.section{padding:96px 0;position:relative;}
.section+.section{border-top:1px solid var(--line);}
.section--alt{background:var(--layer-1);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  flex-wrap:wrap;margin-bottom:44px;
}
.section-title{
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.005em;
}
.section-title::after{
  content:"";display:block;width:12px;height:3px;border-radius:2px;
  background:var(--accent);margin-top:12px;
}
.section-sub{color:var(--text-2);font-size:15px;line-height:1.6;margin-top:12px;max-width:640px;}

/* 卡片 */
.card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1),var(--inset);
  padding:26px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,134,255,.6),transparent);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2),var(--inset);border-color:var(--line-strong);}
.card-title{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.card-text{color:var(--text-2);font-size:15px;line-height:1.75;}
.icon-box{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(46,134,255,.35);color:var(--brand);font-size:19px;
  background:rgba(46,134,255,.08);margin-bottom:18px;
}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:76px 0 92px;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 12% -10%,rgba(46,134,255,.20),transparent 62%),
    radial-gradient(560px 380px at 92% 8%,rgba(22,224,196,.14),transparent 60%),
    linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px) 0 0/48px 48px,
    linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px) 0 0/48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;margin:20px 0 18px;
}
.hero-lead{font-size:17px;color:var(--text-2);max-width:540px;line-height:1.75;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 34px;}
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding-top:26px;border-top:1px solid var(--line);
}
.metric b{display:block;font-size:26px;font-weight:700;color:var(--accent);line-height:1.3;}
.metric span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:440px;object-fit:cover;border-radius:var(--r-l);
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-l);pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,.30) 0%,rgba(7,11,20,.05) 40%,rgba(7,11,20,.72) 100%);
}
.float-card{
  position:absolute;z-index:2;background:var(--glass);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;
  box-shadow:var(--sh-2);min-width:170px;
}
.float-card .fc-label{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.float-card .fc-value{font-size:20px;font-weight:700;color:var(--text-1);}
.float-card .fc-value em{font-style:normal;color:var(--accent);}
.fc-1{left:-18px;bottom:52px;}
.fc-2{right:-12px;top:44px;}

/* ===== 功能分组 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card--wide{grid-column:span 2;}
.point-list{display:flex;flex-direction:column;gap:10px;margin:18px 0 20px;}
.point-list li{position:relative;padding-left:18px;font-size:14.6px;color:var(--text-2);line-height:1.7;}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:2px;
  background:var(--accent);
}
.strip-card{
  display:flex;align-items:flex-start;gap:16px;padding:22px;
  background:rgba(12,19,34,.72);border:1px solid var(--line);border-radius:var(--r-m);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.strip-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.strip-card .icon-box{margin-bottom:0;width:40px;height:40px;flex:0 0 40px;font-size:17px;}
.strip-card h3{font-size:16px;font-weight:600;line-height:1.4;margin-bottom:4px;}
.strip-card p{font-size:14px;color:var(--text-2);line-height:1.65;}

/* ===== 使用场景 ===== */
.scene{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;padding:44px 0;}
.scene+.scene{border-top:1px solid var(--line);}
.scene--reverse .scene-media{order:2;}
.scene-media img{width:100%;height:290px;object-fit:cover;border-radius:var(--r-m);border:1px solid var(--line);}
.scene-media{position:relative;}
.scene-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-m);pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,.30),rgba(7,11,20,.55));
}
.scene h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:14px;}
.scene .point-list{margin:0 0 18px;}

/* ===== 案例轨道 ===== */
.track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 20px;margin:0 -4px;
  scrollbar-width:thin;scrollbar-color:rgba(46,134,255,.4) transparent;
}
.track::-webkit-scrollbar{height:6px;}
.track::-webkit-scrollbar-thumb{background:rgba(46,134,255,.4);border-radius:6px;}
.track::-webkit-scrollbar-track{background:rgba(120,160,255,.08);border-radius:6px;}
.track-card{
  flex:0 0 320px;scroll-snap-align:start;background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-m);padding:24px;
  display:flex;flex-direction:column;gap:14px;box-shadow:var(--sh-1),var(--inset);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.track-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.track-card blockquote{margin:0;font-size:15px;color:var(--text-1);line-height:1.75;}
.track-card .result{
  margin-top:auto;padding-top:16px;border-top:1px solid rgba(22,224,196,.22);
  font-size:14px;color:var(--text-2);
}
.track-card .result b{color:var(--accent);font-size:17px;margin-right:8px;}

/* ===== 价格 ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.price-card{
  position:relative;background:rgba(12,19,34,.78);border:1px solid var(--line);
  border-radius:var(--r-m);padding:30px 26px;display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.price-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.price-card--hl{
  transform:translateY(-8px);
  border-color:rgba(46,134,255,.5);
  box-shadow:0 0 0 1px rgba(46,134,255,.22),0 18px 44px rgba(46,134,255,.18);
  background:linear-gradient(180deg,rgba(18,28,48,.94),rgba(12,19,34,.9));
}
.price-card--hl:hover{transform:translateY(-11px);}
.price-tag{position:absolute;top:-13px;left:26px;}
.price-name{font-size:17px;font-weight:600;margin-bottom:8px;}
.price-desc{font-size:13.5px;color:var(--text-3);margin-bottom:20px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:22px;}
.price-amount b{font-size:38px;font-weight:800;line-height:1;letter-spacing:-.01em;}
.price-amount span{font-size:13px;color:var(--text-3);}
.price-list{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;flex:1;}
.price-list li{display:flex;gap:9px;font-size:14.4px;color:var(--text-2);line-height:1.6;}
.price-list i{color:var(--accent);margin-top:.36em;font-size:13px;}
.price-note{margin-top:22px;font-size:13.5px;color:var(--text-3);display:flex;gap:14px;flex-wrap:wrap;align-items:center;}

/* ===== 最新信息 ===== */
.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
  display:flex;flex-direction:column;background:rgba(12,19,34,.7);
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  box-shadow:var(--sh-1);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.post-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--layer-2);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.32),rgba(7,11,20,.02) 45%,rgba(7,11,20,.6));
}
.post-cover-ph{
  position:absolute;inset:0;display:grid;place-items:center;font-size:26px;color:rgba(46,134,255,.7);
  background:linear-gradient(135deg,rgba(46,134,255,.22),rgba(22,224,196,.14));
}
.post-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:2.9em;
}
.post-card:hover .post-body h3{color:var(--accent);}
.post-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid rgba(120,160,255,.1);
  font-size:12px;color:var(--text-3);letter-spacing:.04em;display:flex;gap:10px;flex-wrap:wrap;align-items:center;
}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border:1px dashed var(--line);border-radius:var(--r-m);background:rgba(12,19,34,.5);
}
.empty-state i{font-size:28px;color:var(--text-3);display:block;margin-bottom:14px;}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px;}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq .accordion{margin:0;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;background:rgba(12,19,34,.66);}
.faq .accordion-item{border-bottom:1px solid var(--line);background:transparent;}
.faq .accordion-item:last-child{border-bottom:0;}
.faq .accordion-title{
  position:relative;display:block;padding:20px 56px 20px 24px;
  font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5;
  background:transparent;border:0;transition:box-shadow .2s ease,color .2s ease;
}
.faq .accordion-title:hover{color:var(--accent);box-shadow:inset 2px 0 0 var(--accent);}
.faq .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%) rotate(0deg);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform .28s ease,color .2s ease;
}
.faq .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);color:var(--accent);}
.faq .accordion-content{
  padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.8;
  border:0;background:transparent;
}

/* ===== CTA 条 ===== */
.cta-bar{
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-l);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-1),var(--inset);
  position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 220px at 88% 0%,rgba(22,224,196,.16),transparent 65%);
}
.cta-bar h2{font-size:clamp(21px,2.1vw,27px);font-weight:700;line-height:1.35;position:relative;}
.cta-bar p{color:var(--text-2);font-size:15px;margin-top:10px;position:relative;max-width:620px;}
.cta-bar .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;}

/* ===== 页脚 ===== */
.site-footer{background:var(--layer-1);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.75;max-width:320px;}
.footer-contact{margin-top:18px;font-size:13.5px;color:var(--text-3);display:flex;flex-direction:column;gap:8px;}
.footer-contact span i{color:var(--brand);margin-right:8px;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-1);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--accent);}
.qr-box{
  width:112px;height:112px;border-radius:14px;border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(46,134,255,.16),rgba(22,224,196,.1));
  display:grid;place-items:center;color:var(--text-3);font-size:26px;margin-bottom:12px;
}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.7;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.8px;color:var(--text-3);letter-spacing:.02em;
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}
.footer-bottom .foot-links{display:flex;gap:16px;flex-wrap:wrap;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .grid-container{padding-left:24px;padding-right:24px;}
  .nav-links,.nav-actions .btn-ghost{display:none;}
  .burger{display:inline-flex;}
  .section{padding:72px 0;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual img{height:360px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .card--wide{grid-column:span 2;}
  .scene{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .scene--reverse .scene-media{order:0;}
  .scene-media img{height:240px;}
  .price-grid{grid-template-columns:1fr;gap:26px;}
  .price-card--hl{transform:none;}
  .price-card--hl:hover{transform:translateY(-3px);}
  .posts-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  :root{--gutter:8px;}
  .section{padding:56px 0;}
  .hero{padding:44px 0 60px;}
  .hero h1{font-size:clamp(26px,7.6vw,34px);}
  .metrics{grid-template-columns:repeat(2,1fr);gap:16px;}
  .metric b{font-size:22px;}
  .hero-visual img{height:280px;}
  .float-card{min-width:142px;padding:11px 13px;}
  .fc-1{left:8px;bottom:14px;}
  .fc-2{right:8px;top:14px;}
  .feature-grid{grid-template-columns:1fr;}
  .card--wide{grid-column:span 1;}
  .posts-grid{grid-template-columns:1fr;}
  .track-card{flex:0 0 84%;}
  .cta-bar{padding:26px 20px;}
  .cta-bar .cta-actions{width:100%;}
  .cta-bar .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .section-head{margin-bottom:30px;}
}

/* roulang page: category1 */
:root{
  --base:#070B14;
  --layer-1:#0C1322;
  --layer-2:#121C30;
  --brand:#2E86FF;
  --accent:#16E0C4;
  --warm:#FFB342;
  --glass:rgba(18,28,48,.62);
  --text-1:#E9F0FB;
  --text-2:#9FB0C9;
  --text-3:#6C7D96;
  --line:rgba(120,160,255,.14);
  --inset:inset 0 1px 0 rgba(255,255,255,.08);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(0,0,0,.28);
  --shadow-2:0 14px 36px rgba(0,0,0,.42);
  --glow:0 8px 28px rgba(46,134,255,.38);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --sec-pad:96px;
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--base);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font);color:var(--text-1);margin:0;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
img{max-width:100%;display:block;border:0}
button,input,textarea,select{font-family:inherit;font-size:inherit}
::selection{background:rgba(46,134,255,.35);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- foundation overrides ---------- */
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x > .cell{padding-left:12px;padding-right:12px;min-width:0}
.row{max-width:1200px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04121f;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 36px rgba(46,134,255,.52);color:#04121f}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 16px rgba(46,134,255,.35)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:rgba(22,224,196,.55);color:var(--accent);background:rgba(22,224,196,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .24s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:26px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-size:17px;font-weight:800;letter-spacing:.01em}
.logo:hover{color:var(--text-1)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04121f;font-size:15px;box-shadow:0 6px 18px rgba(46,134,255,.35);
}
.logo-text b{color:var(--accent);font-weight:800}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-links a{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text-1);font-weight:600}
.nav-links a:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--line);color:var(--text-1);
  cursor:pointer;align-items:center;justify-content:center;font-size:17px;
}
.burger:hover{border-color:rgba(22,224,196,.5);color:var(--accent)}
.burger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* mobile panel */
.mask{
  position:fixed;inset:0;background:rgba(4,8,16,.6);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:90;
}
.mask.is-open{opacity:1;visibility:visible}
.mobile-panel{
  position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);
  background:var(--layer-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  z-index:100;display:flex;flex-direction:column;padding:22px 20px;
}
.mobile-panel.is-open{transform:translateX(0)}
.mp-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.mp-close{width:40px;height:40px;border-radius:var(--r-sm);background:transparent;border:1px solid var(--line);color:var(--text-1);cursor:pointer}
.mp-close:hover{border-color:rgba(22,224,196,.5);color:var(--accent)}
.mp-links{display:flex;flex-direction:column;padding:14px 0;flex:1}
.mp-links a{
  padding:14px 4px;font-size:18px;color:var(--text-2);border-bottom:1px solid var(--line);
}
.mp-links a:hover,.mp-links a.is-active{color:var(--accent)}
.mp-foot{padding-top:8px}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--layer-1);border-bottom:1px solid var(--line);padding:56px 0 64px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.2;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.94) 62%,var(--base) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb i{font-size:10px;color:var(--text-3)}

.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(22,224,196,.1);border:1px solid rgba(22,224,196,.3);
  color:var(--accent);font-size:12.5px;letter-spacing:.04em;font-weight:600;
  margin-bottom:18px;
}
h1.page-title{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;line-height:1.18;letter-spacing:-.01em;
  margin-bottom:18px;max-width:14em;
}
.page-lead{font-size:17px;color:var(--text-2);max-width:36em;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px}
.hero-stats .stat-num{
  display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;color:var(--accent);
  line-height:1.1;letter-spacing:-.01em;
}
.hero-stats .stat-label{display:block;font-size:12px;color:var(--text-3);letter-spacing:.04em;margin-top:6px}

.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(7,11,20,.05) 0%,rgba(7,11,20,.42) 100%);
  pointer-events:none;
}
.float-card{
  position:absolute;left:16px;bottom:16px;z-index:3;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--inset),var(--shadow-1);
  font-size:13px;color:var(--text-2);
}
.float-card strong{display:block;color:var(--text-1);font-size:15px;font-weight:700;margin-bottom:2px}
.float-card .dot-live{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:6px;box-shadow:0 0 0 4px rgba(22,224,196,.16)}

/* ---------- layout ---------- */
.main-wrap{padding:var(--sec-pad) 0}
.toc{
  position:sticky;top:96px;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 16px;box-shadow:var(--inset),var(--shadow-1);
}
.toc-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);font-weight:700;margin-bottom:12px;text-transform:uppercase}
.toc a{
  display:block;padding:9px 12px;border-radius:8px;font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;margin-bottom:2px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc a:hover{background:rgba(46,134,255,.09);color:var(--text-1)}
.toc a.is-active{color:var(--accent);border-left-color:var(--accent);background:rgba(22,224,196,.07)}
.toc a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- content blocks ---------- */
.content-block{
  background:var(--layer-1);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:34px 32px;
  margin-bottom:26px;
  scroll-margin-top:100px;
  position:relative;
}
.content-block::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(120,160,255,.35),transparent);
}
.sec-title{
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
  margin-bottom:0;
}
.sec-title::after{
  content:"";display:block;width:42px;height:3px;border-radius:2px;
  background:var(--accent);margin-top:12px;
}
.sec-sub{font-size:14px;color:var(--text-2);margin:14px 0 26px;max-width:44em}
.lead-text{font-size:16.5px;color:var(--text-2);line-height:1.85}
.lead-text strong{color:var(--text-1);font-weight:600}

/* three time cards */
.time-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.time-card{
  background:var(--layer-2);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.time-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(120,160,255,.28)}
.time-card .tc-icon{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(46,134,255,.4);color:var(--brand);font-size:16px;margin-bottom:14px;
}
.time-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.time-card p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0}
.time-card .tc-tag{display:inline-block;margin-top:12px;font-size:12px;color:var(--accent);letter-spacing:.04em}

/* point grid */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.point-item{
  display:flex;gap:12px;background:var(--layer-2);
  border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;
  transition:border-color .24s ease,background .24s ease;
}
.point-item:hover{border-color:rgba(22,224,196,.32);background:rgba(18,28,48,.85)}
.point-item .pd{flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--accent);margin-top:9px}
.point-item h4{font-size:15.5px;font-weight:600;margin-bottom:4px}
.point-item p{font-size:13.5px;color:var(--text-2);line-height:1.7;margin:0}

/* table */
.table-wrap{
  margin-top:24px;overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);
  -webkit-overflow-scrolling:touch;
}
table.cmp{width:100%;min-width:680px;border-collapse:collapse;font-size:14.5px}
table.cmp thead th{
  background:var(--layer-2);color:var(--text-1);font-weight:600;text-align:left;
  padding:15px 18px;white-space:nowrap;letter-spacing:.02em;
}
table.cmp td{padding:15px 18px;border-top:1px solid var(--line);color:var(--text-2);vertical-align:top}
table.cmp tbody tr{transition:background .2s ease}
table.cmp tbody tr:hover{background:rgba(46,134,255,.06)}
table.cmp td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap}

/* media block */
.media-block{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;margin-top:26px}
.media-block.reverse .media-text{order:2}
.media-img img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.dot-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2);margin-bottom:12px;line-height:1.75}
.dot-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.media-text .link-arrow{margin-top:6px}

/* checklist */
.check-list{counter-reset:ck;margin-top:24px}
.check-list li{
  counter-increment:ck;
  position:relative;padding:14px 16px 14px 56px;
  border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2);
  transition:background .2s ease,padding-left .2s ease;
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:counter(ck,decimal-leading-zero);
  position:absolute;left:14px;top:14px;
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;
  width:30px;height:24px;display:flex;align-items:center;
}
.check-list li:hover{background:rgba(46,134,255,.06);border-radius:8px}
.check-list li strong{color:var(--text-1);font-weight:600}

/* faq */
.faq-list{margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 14px 20px 0;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .2s ease,padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:-14px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:var(--accent);opacity:0;transition:opacity .24s ease;
}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary:hover::before{opacity:1}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.faq-item summary .fi{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:12px;color:var(--text-2);transition:transform .26s ease,color .26s ease,border-color .26s ease;
}
.faq-item[open] summary .fi{transform:rotate(45deg);color:var(--accent);border-color:rgba(22,224,196,.5)}
.faq-body{padding:0 40px 22px 0;font-size:15.5px;color:var(--text-2);line-height:1.85;animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* cta band */
.cta-band{
  background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--inset),var(--shadow-1);
  padding:34px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  scroll-margin-top:100px;
}
.cta-band h2{font-size:clamp(20px,2.1vw,26px);font-weight:700;margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:44em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* ---------- footer ---------- */
.site-footer{
  background:var(--layer-1);border-top:1px solid var(--line);
  padding:64px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:30em;line-height:1.8}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:18px;font-size:13.5px;color:var(--text-3)}
.footer-contact span{display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--brand);width:16px}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.03em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--accent)}
.qr-box{
  width:96px;height:96px;border-radius:var(--r-md);border:1px dashed var(--line);
  display:grid;place-items:center;color:var(--text-3);font-size:34px;background:var(--layer-2);
}
.footer-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.foot-links{display:flex;align-items:center;gap:18px}
.foot-links a{color:var(--text-3)}
.foot-links a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sec-pad:72px}
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .burger{display:inline-flex}
  .toc{position:static;margin-bottom:26px}
  .toc a{display:inline-block;margin-right:6px;border-left:0;border-bottom:2px solid transparent;padding:8px 12px}
  .toc a.is-active{border-left:0;border-bottom-color:var(--accent)}
  .toc-title{margin-bottom:8px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  :root{--sec-pad:56px}
  .container{padding:0 16px}
  .grid-x{margin-left:-8px;margin-right:-8px}
  .grid-x > .cell{padding-left:8px;padding-right:8px}
  .nav-inner{gap:12px}
  .logo-text{font-size:16px}
  .nav-actions .btn-primary{min-height:38px;padding:0 14px;font-size:13.5px}
  h1.page-title{max-width:none}
  .page-hero{padding:40px 0 48px}
  .hero-stats{gap:22px}
  .hero-stats > div{min-width:calc(50% - 11px)}
  .content-block{padding:24px 18px;border-radius:18px}
  .time-cards{grid-template-columns:1fr}
  .point-grid{grid-template-columns:1fr}
  .media-block{grid-template-columns:1fr;gap:20px}
  .media-block.reverse .media-text{order:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-item summary{font-size:16px;gap:14px}
  .faq-body{padding-right:0}
}

/* roulang page: article */
:root{
  --base:#070B14;
  --layer-1:#0C1322;
  --layer-2:#121C30;
  --brand:#2E86FF;
  --accent:#16E0C4;
  --warm:#FFB342;
  --glass:rgba(18,28,48,.62);
  --text-1:#E9F0FB;
  --text-2:#9FB0C9;
  --text-3:#6C7D96;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.28);
  --inset:inset 0 1px 0 rgba(255,255,255,.08);
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow-1:0 2px 8px rgba(0,0,0,.28);
  --shadow-2:0 14px 36px rgba(0,0,0,.42);
  --glow:0 8px 28px rgba(46,134,255,.38);
  --glow-strong:0 12px 40px rgba(46,134,255,.52);
  --container:1200px;
  --font:"system-ui","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--base);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    radial-gradient(1200px 600px at 12% -10%, rgba(46,134,255,.16), transparent 60%),
    radial-gradient(900px 520px at 92% 4%, rgba(22,224,196,.10), transparent 62%),
    linear-gradient(rgba(120,160,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,255,.045) 1px, transparent 1px);
  background-size:auto,auto,56px 56px,56px 56px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,ul,ol,blockquote,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,134,255,.35);color:#fff}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--accent) 140%);
  color:#04101F;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--glow-strong);color:#04101F}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 16px rgba(46,134,255,.32)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(2px)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  background:rgba(46,134,255,.14);
  border:1px solid rgba(46,134,255,.32);
  color:#BBD8FF;
}
.badge-accent{
  background:rgba(22,224,196,.12);
  border-color:rgba(22,224,196,.34);
  color:#9DF3E7;
}
.card{
  position:relative;
  background:var(--layer-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  overflow:hidden;
}
.card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,134,255,.55),rgba(22,224,196,.45),transparent);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.section{padding:96px 0;position:relative}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.section-head h2::after{
  content:"";
  display:block;
  width:56px;height:3px;
  margin-top:14px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(22,224,196,0));
}
.section-head .sub{
  margin-top:14px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(10,16,28,.72);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  font-size:18px;
  font-weight:700;
  letter-spacing:.01em;
  flex:0 0 auto;
}
.logo:hover{color:var(--text-1)}
.logo-mark{
  width:36px;height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04101F;
  font-size:16px;
  box-shadow:var(--glow);
}
.logo-text b{color:var(--brand);font-weight:700}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  justify-content:center;
}
.nav-links a{
  position:relative;
  padding:0 14px;
  height:44px;
  display:inline-flex;
  align-items:center;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-radius:var(--radius-sm);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text-1)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.burger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);
  color:var(--text-1);
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.burger:hover{border-color:var(--accent);color:var(--accent)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(4,8,16,.68);
  backdrop-filter:blur(2px);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;
  width:86%;
  max-width:348px;
  height:100%;
  background:var(--layer-1);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:90;
  display:flex;
  flex-direction:column;
  padding:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  color:var(--text-1);cursor:pointer;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  font-size:18px;
  line-height:1.6;
  color:var(--text-1);
  padding:12px 8px;
  border-radius:var(--radius-sm);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--accent)}
.drawer-nav a:hover{background:rgba(46,134,255,.08);color:var(--accent)}
.drawer-cta{margin-top:auto;padding-top:20px}
.drawer-cta .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  padding:22px 0 0;
  border-top:1px solid transparent;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb i{font-size:10px;color:var(--text-3)}
.breadcrumb .current{
  max-width:340px;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
  color:var(--text-2);
}

/* ---------- 文章头 ---------- */
.article-hero{padding:28px 0 0}
.article-head .badge{margin-bottom:16px}
.article-head h1{
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.01em;
  max-width:900px;
}
.article-lead{
  margin-top:16px;
  max-width:820px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:22px;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand)}
.cover-wrap{
  margin-top:30px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,var(--layer-2),var(--layer-1));
}
.cover-wrap img{width:100%;height:100%;object-fit:cover}
.cover-wrap::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.34),rgba(7,11,20,.06) 40%,rgba(7,11,20,.5));
  pointer-events:none;
}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 316px;
  gap:44px;
  align-items:start;
  padding:56px 0 96px;
}
.article-main{min-width:0}
.article-panel{
  background:var(--layer-1);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:40px 44px 48px;
  box-shadow:var(--shadow-1);
}
.reading-note{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  margin-bottom:32px;
  border-radius:var(--radius-sm);
  background:rgba(22,224,196,.08);
  border:1px solid rgba(22,224,196,.24);
  font-size:13px;
  color:#9DF3E7;
}
.reading-note i{color:var(--accent)}

.article-body{
  max-width:780px;
  font-size:17px;
  line-height:1.9;
  color:#D6E1F1;
  word-wrap:break-word;
}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  position:relative;
  margin-top:40px;
  padding-left:16px;
  font-size:clamp(21px,2.1vw,26px);
  font-weight:700;
  line-height:1.4;
  color:var(--text-1);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.35em;
  width:3px;height:1.05em;
  border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--brand));
}
.article-body h3{
  margin-top:28px;
  font-size:19px;
  font-weight:600;
  color:var(--text-1);
}
.article-body h4{
  margin-top:22px;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
}
.article-body a{
  color:var(--brand);
  border-bottom:1px solid rgba(46,134,255,.4);
}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-body strong{color:#FFFFFF;font-weight:700}
.article-body ul{margin-top:1.2em;padding-left:1.5em;list-style:none}
.article-body ul li{position:relative;margin-bottom:.6em}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:-1.1em;top:.85em;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--accent);
}
.article-body ol{margin-top:1.2em;padding-left:1.8em;list-style:decimal}
.article-body ol li{margin-bottom:.6em}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--glass);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:var(--radius-sm);
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
}
.article-body img{
  width:100%;
  height:auto;
  border-radius:12px;
  margin:1.6em 0;
  border:1px solid var(--line);
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  margin-top:10px;
  font-size:12px;
  color:var(--text-3);
  text-align:center;
}
.article-body table{
  width:100%;
  display:block;
  overflow-x:auto;
  border-collapse:collapse;
  border-radius:12px;
  background:var(--layer-2);
  border:1px solid var(--line);
  font-size:14px;
}
.article-body table th,
.article-body table td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  text-align:left;
  white-space:nowrap;
}
.article-body table th{color:var(--text-1);font-weight:600;background:rgba(46,134,255,.08)}
.article-body table td{color:var(--text-2)}
.article-body pre{
  overflow-x:auto;
  padding:18px 20px;
  background:#060A12;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:14px;
  line-height:1.7;
  color:#B9D4FF;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
}
.article-body hr{
  border:0;
  height:1px;
  margin:2em 0;
  background:linear-gradient(90deg,transparent,var(--line),transparent);
}

/* 空态 */
.empty-state{
  text-align:center;
  padding:72px 24px;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  background:var(--layer-1);
}
.empty-state i{font-size:32px;color:var(--brand);opacity:.8}
.empty-state h3{margin-top:18px;font-size:19px;font-weight:600;color:var(--text-1)}
.empty-state p{margin-top:10px;font-size:14px;color:var(--text-2)}
.empty-state .btn{margin-top:24px}

/* 标签 */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13px;color:var(--text-3);letter-spacing:.04em}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:var(--layer-2);
  border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:var(--glass);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-1),var(--inset);
}
.side-card h4{
  font-size:15px;
  font-weight:700;
  color:var(--text-1);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.side-card h4 i{color:var(--accent)}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 10px;
  font-size:14px;
  color:var(--text-2);
  border-radius:var(--radius-sm);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.side-list a i{font-size:11px;color:var(--text-3);transition:transform .2s ease,color .2s ease}
.side-list a:hover{
  background:rgba(46,134,255,.08);
  color:var(--text-1);
  border-left-color:var(--accent);
  padding-left:14px;
}
.side-list a:hover i{color:var(--accent);transform:translateX(2px)}
.side-cta{
  background:linear-gradient(150deg,rgba(46,134,255,.18),rgba(22,224,196,.10));
  border:1px solid rgba(46,134,255,.3);
  border-radius:var(--radius);
  padding:24px 22px;
}
.side-cta h4{margin-bottom:8px;font-size:16px;color:var(--text-1);display:flex;align-items:center;gap:8px}
.side-cta h4 i{color:var(--warm)}
.side-cta p{font-size:13px;line-height:1.7;color:var(--text-2);margin-bottom:16px}
.side-cta .btn{width:100%}
.side-stats{display:flex;gap:18px;margin-top:16px}
.side-stats .st{flex:1}
.side-stats .st b{
  display:block;
  font-size:22px;
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.side-stats .st span{font-size:12px;color:var(--text-3)}

/* 上/下一篇 */
.pager-section{padding:0 0 96px}
.pager-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pager-card{
  display:block;
  padding:24px 26px;
  border-radius:var(--radius);
  background:var(--layer-1);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.pager-card .dir{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-3);
  margin-bottom:12px;
}
.pager-card .dir i{color:var(--brand)}
.pager-card h3{
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.5;
}
.pager-card p{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.7}
.pager-card.is-next{text-align:right}
.pager-card.is-next .dir{justify-content:flex-end}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--layer-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.post-thumb{
  position:relative;
  aspect-ratio:16/10;
  background:linear-gradient(135deg,var(--layer-2),var(--brand));
  overflow:hidden;
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.3),rgba(7,11,20,.55));
}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-body .badge{align-self:flex-start;margin-bottom:12px}
.post-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-1);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-body .excerpt{
  margin-top:10px;
  font-size:13px;
  line-height:1.7;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  padding-top:16px;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.03em;
}
.post-meta i{color:var(--brand);font-size:11px}

/* 返回入口 */
.back-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-top:36px;
  padding:20px 24px;
  border-radius:var(--radius);
  background:var(--layer-2);
  border:1px solid var(--line);
}
.back-row p{font-size:14px;color:var(--text-2)}

/* CTA 条 */
.cta-band{
  padding:0 0 96px;
}
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:36px 40px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  backdrop-filter:blur(14px);
  border:1px solid rgba(46,134,255,.26);
  box-shadow:var(--shadow-2),var(--inset);
  position:relative;
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  top:-120px;right:-60px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,134,255,.28),transparent 65%);
  pointer-events:none;
}
.cta-card h2{
  font-size:clamp(21px,2.2vw,28px);
  font-weight:700;
  line-height:1.35;
  color:var(--text-1);
}
.cta-card p{margin-top:10px;font-size:14px;color:var(--text-2);max-width:640px}
.cta-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;position:relative;z-index:1}

/* 页脚 */
.site-footer{
  background:var(--layer-1);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:340px}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.footer-contact span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.footer-contact i{color:var(--accent)}
.footer-title{
  font-size:15px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
  position:relative;
  padding-left:12px;
}
.footer-title::before{
  content:"";
  position:absolute;
  left:0;top:.35em;
  width:3px;height:1em;
  border-radius:2px;
  background:var(--accent);
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--accent)}
.qr-box{
  width:104px;height:104px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(140deg,var(--layer-2),var(--base));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:38px;
  color:var(--brand);
}
.footer-note{margin-top:12px;font-size:13px;color:var(--text-3);max-width:200px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.foot-links{display:flex;align-items:center;gap:16px}
.foot-links a{color:var(--text-3)}
.foot-links a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-links{display:none}
  .burger{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding:44px 0 72px}
  .article-side{position:static}
  .article-panel{padding:32px 28px 38px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:0 0 72px}
  .pager-section{padding:0 0 72px}
}
@media screen and (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .nav-inner{height:64px;gap:12px}
  .logo{font-size:16px}
  .logo-mark{width:32px;height:32px;font-size:14px;border-radius:10px}
  .nav-actions .btn-ghost{display:none}
  .breadcrumb .current{max-width:180px}
  .article-hero{padding:20px 0 0}
  .article-lead{font-size:15px}
  .cover-wrap{border-radius:var(--radius);margin-top:22px}
  .article-panel{padding:24px 18px 30px;border-radius:var(--radius)}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{margin-top:32px}
  .pager-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .pager-card.is-next{text-align:left}
  .pager-card.is-next .dir{justify-content:flex-start}
  .rel-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .back-row{flex-direction:column;align-items:flex-start}
  .cta-card{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%;flex-wrap:wrap}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .side-stats{flex-wrap:wrap}
}

/* roulang page: category2 */
:root{
  --base:#070B14;
  --layer-1:#0C1322;
  --layer-2:#121C30;
  --brand:#2E86FF;
  --accent:#16E0C4;
  --warm:#FFB342;
  --glass:rgba(18,28,48,.62);
  --text-1:#E9F0FB;
  --text-2:#9FB0C9;
  --text-3:#6C7D96;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.28);
  --inset:inset 0 1px 0 rgba(255,255,255,.08);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.28);
  --sh-2:0 14px 36px rgba(0,0,0,.42);
  --glow:0 8px 28px rgba(46,134,255,.38);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--base);
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  background-image:
    radial-gradient(circle at 12% 0%,rgba(46,134,255,.10),transparent 42%),
    radial-gradient(circle at 88% 12%,rgba(22,224,196,.07),transparent 40%);
  background-repeat:no-repeat;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0;}
ul,ol{list-style:none;margin:0;padding:0;}
img{max-width:100%;display:block;border:0;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:rgba(46,134,255,.35);color:#fff;}

/* Foundation 默认味道覆盖 */
body,button,input,select,textarea{font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;}
h1,h2,h3,h4{color:var(--text-1);line-height:1.3;font-weight:700;}
p{color:var(--text-2);}
.menu,.accordion{margin:0;padding:0;}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;position:relative;}
.section + .section{border-top:1px solid var(--line);}
.section-head{margin-bottom:44px;max-width:720px;}
.section-title{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
  position:relative;
  padding-bottom:14px;
}
.section-title::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:48px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(22,224,196,0));
}
.section-sub{margin-top:14px;font-size:14px;color:var(--text-2);line-height:1.6;}
.section-sub-wide{max-width:760px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn i{font-size:14px;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 135%);
  color:#04101F;
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#04101F;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 12px 34px rgba(46,134,255,.5);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(46,134,255,.4);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:rgba(22,224,196,.5);color:var(--accent);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  background:none;border:0;padding:0;min-height:0;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover{color:var(--accent);}
.btn-link:hover i{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(46,134,255,.12);
  border:1px solid rgba(46,134,255,.32);
  color:#A8CDFF;font-size:13px;letter-spacing:.04em;line-height:1.4;
}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(22,224,196,.10);
  border:1px solid rgba(22,224,196,.3);
  color:var(--accent);font-size:12px;letter-spacing:.04em;
}
.tag-warm{
  background:rgba(255,179,66,.12);
  border-color:rgba(255,179,66,.4);
  color:var(--warm);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--inset);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text-1);font-weight:700;letter-spacing:-.01em;flex:0 0 auto;
}
.logo:hover{color:var(--text-1);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#04101F;font-size:16px;
  box-shadow:var(--glow);
}
.logo-text{font-size:18px;line-height:1;}
.logo-text b{color:var(--accent);font-weight:700;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;color:var(--text-2);
  font-size:15px;font-weight:500;padding:6px 2px;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--text-1);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--text-1);font-size:17px;
  transition:border-color .2s ease,color .2s ease;
}
.burger:hover{border-color:rgba(22,224,196,.5);color:var(--accent);}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;height:100%;
  width:min(340px,86vw);
  background:var(--layer-1);
  border-left:1px solid var(--line);
  z-index:90;padding:24px 22px 28px;
  display:flex;flex-direction:column;
  transform:translateX(102%);
  transition:transform .3s ease;
  box-shadow:-18px 0 40px rgba(0,0,0,.45);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--text-2);font-size:16px;
}
.drawer-close:hover{color:var(--accent);border-color:rgba(22,224,196,.5);}
.drawer a.d-link{
  display:block;font-size:18px;color:var(--text-1);
  padding:15px 4px;border-bottom:1px solid var(--line);
}
.drawer a.d-link:hover{color:var(--accent);}
.drawer a.d-link.is-active{color:var(--accent);}
.drawer-cta{margin-top:auto;padding-top:22px;display:grid;gap:12px;}
.drawer-cta .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,16,.62);
  z-index:80;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--layer-1);}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);padding:14px 0;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .cur{color:var(--accent);}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  background-image:
    linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.93) 68%,rgba(7,11,20,.99) 100%),
    url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 30% 30%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 30%,#000,transparent 72%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{align-items:center;}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  margin:20px 0 0;
}
.hero-lead{
  margin-top:18px;font-size:17px;color:var(--text-2);
  max-width:520px;line-height:1.75;
}
.hero-desc{margin-top:14px;font-size:15px;color:var(--text-3);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:36px;}
.stat-num{
  font-size:26px;font-weight:800;line-height:1.2;
  color:var(--accent);letter-spacing:-.01em;
}
.stat-num small{font-size:13px;font-weight:600;margin-left:4px;color:var(--text-2);}
.stat-label{font-size:12px;color:var(--text-3);letter-spacing:.04em;margin-top:2px;}

.hero-visual{
  position:relative;border-radius:var(--r-lg);
  overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);margin-left:24px;
}
.hero-visual img{width:100%;height:400px;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.12) 0%,rgba(7,11,20,.5) 62%,rgba(7,11,20,.82) 100%);
}
.float-card{
  position:absolute;z-index:3;
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 16px;
  box-shadow:var(--sh-1);
  min-width:150px;
}
.float-card .fc-label{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.float-card .fc-value{font-size:16px;font-weight:700;color:var(--text-1);margin-top:2px;}
.float-card .fc-value i{color:var(--accent);font-size:13px;margin-right:6px;}
.fc-top{top:24px;right:24px;}
.fc-bottom{bottom:24px;left:24px;}

/* ============ 步骤条 ============ */
.steps{
  display:grid;grid-template-columns:repeat(5,1fr);gap:22px;
  counter-reset:stepper;
}
.step{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 20px 22px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  height:100%;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.step::before{
  content:"";position:absolute;top:44px;left:-22px;width:22px;height:1px;
  background:linear-gradient(90deg,rgba(22,224,196,0),rgba(22,224,196,.6));
}
.step:first-child::before{display:none;}
.step-no{
  display:inline-grid;place-items:center;
  width:38px;height:38px;border-radius:12px;
  background:rgba(46,134,255,.1);
  border:1px solid rgba(46,134,255,.35);
  color:var(--accent);font-size:14px;font-weight:800;
  letter-spacing:.02em;
}
.step-title{font-size:17px;font-weight:600;margin-top:16px;line-height:1.45;}
.step-desc{font-size:14px;color:var(--text-2);line-height:1.65;margin-top:8px;}

/* ============ 卡片矩阵 ============ */
.matrix{margin-bottom:-24px;}
.matrix .cell{margin-bottom:24px;}
.card{
  position:relative;height:100%;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:30px 26px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  overflow:hidden;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.card-line::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(46,134,255,0),rgba(46,134,255,.75),rgba(22,224,196,.2),rgba(46,134,255,0));
}
.card-icon{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;
  border:1px solid rgba(46,134,255,.35);
  background:rgba(46,134,255,.08);
  color:var(--brand);font-size:19px;
  margin-bottom:18px;
}
.card h3{font-size:19px;font-weight:600;line-height:1.45;}
.card > p{font-size:15px;color:var(--text-2);margin-top:10px;line-height:1.72;}
.card .btn-link{margin-top:18px;}
.dot-list{margin-top:16px;display:grid;gap:9px;}
.dot-list li{
  position:relative;padding-left:16px;
  font-size:14px;color:var(--text-2);line-height:1.62;
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:2px;background:var(--accent);
}

/* ============ 长文块 ============ */
.longform{max-width:840px;}
.longform h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;line-height:1.4;
  margin-top:52px;margin-bottom:16px;
}
.longform h2:first-child{margin-top:0;}
.longform h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:2px;background:var(--accent);
  box-shadow:0 0 12px rgba(22,224,196,.5);
}
.longform h3{font-size:19px;font-weight:600;margin-top:28px;margin-bottom:10px;}
.longform p{font-size:16px;color:var(--text-2);line-height:1.85;margin-bottom:1.2em;}
.longform p strong{color:var(--text-1);font-weight:600;}
.longform ol{counter-reset:n;display:grid;gap:12px;margin:20px 0 8px;}
.longform ol li{
  position:relative;padding-left:40px;
  font-size:15px;color:var(--text-2);line-height:1.75;
}
.longform ol li::before{
  counter-increment:n;
  content:counter(n,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.04em;
}
.longform ul.dot-list{margin:18px 0 8px;gap:10px;}
.longform ul.dot-list li{font-size:15px;}
.longform-figure{margin:30px 0;}
.longform-figure img{width:100%;height:300px;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line);}
.longform-figure figcaption{font-size:12px;color:var(--text-3);text-align:center;margin-top:10px;letter-spacing:.04em;}
.note-box{
  background:var(--layer-2);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:16px 20px;margin:22px 0;
  font-size:15px;color:var(--text-2);line-height:1.75;
}
.note-box i{color:var(--brand);margin-right:8px;}

/* ============ FAQ ============ */
.faq{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:22px 14px;position:relative;
  font-size:17px;font-weight:600;color:var(--text-1);line-height:1.6;
  transition:color .22s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleY(0);transition:transform .25s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-q:hover::before{transform:scaleY(1);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:13px;color:var(--accent);
  transition:transform .3s ease,border-color .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(22,224,196,.6);}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .35s ease,opacity .35s ease;}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 14px 22px;font-size:15px;color:var(--text-2);line-height:1.8;}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:38px 34px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(46,134,255,0),rgba(46,134,255,.8),rgba(22,224,196,.6),rgba(46,134,255,0));
}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4;}
.cta-copy p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--layer-1);
  border-top:1px solid var(--line);
  padding:64px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo{margin-bottom:2px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.75;margin:14px 0 14px;max-width:330px;}
.footer-contact{display:grid;gap:8px;font-size:13px;color:var(--text-3);}
.footer-contact i{color:var(--accent);margin-right:8px;}
.footer-title{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:16px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--accent);}
.qr-box{
  width:94px;height:94px;border-radius:14px;
  border:1px solid var(--line);
  background:var(--layer-2);
  display:grid;place-items:center;
  font-size:38px;color:var(--text-3);
}
.footer-note{font-size:13px;color:var(--text-3);margin-top:12px;max-width:180px;line-height:1.6;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;
  border-top:1px solid var(--line);
  margin-top:46px;padding-top:20px;
  font-size:13px;color:var(--text-3);
}
.foot-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.foot-links a{color:var(--text-3);}
.foot-links a:hover{color:var(--accent);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .nav-actions .btn-ghost{display:none;}
  .hero-visual{margin-left:0;margin-top:36px;}
  .hero-visual img{height:320px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:18px;}
  .step::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .cta-actions{width:100%;}
}

@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .site-header .nav-inner{height:64px;gap:12px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:30px;height:30px;font-size:14px;}
  .nav-actions{gap:8px;}
  .btn-sm{min-height:38px;padding:0 14px;font-size:13px;}
  .page-hero{padding:52px 0 48px;}
  .hero-copy h1{font-size:30px;}
  .hero-lead{font-size:15px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{flex:1 1 100%;}
  .hero-stats{gap:20px 26px;margin-top:28px;}
  .stat-num{font-size:22px;}
  .hero-visual img{height:240px;}
  .float-card{padding:10px 12px;min-width:120px;}
  .float-card .fc-value{font-size:14px;}
  .fc-top{top:14px;right:14px;}
  .fc-bottom{bottom:14px;left:14px;}
  .steps{grid-template-columns:1fr;gap:14px;}
  .step{padding:20px 18px;}
  .card{padding:24px 20px;}
  .longform h2{margin-top:40px;}
  .longform-figure img{height:200px;}
  .faq-q{font-size:16px;padding:18px 12px;}
  .faq-a p{padding:0 12px 18px;}
  .cta-band{padding:26px 20px;border-radius:var(--r-md);}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:52px 0 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:32px;}
  .footer-note{max-width:none;}
  .crumb{font-size:12px;padding:12px 0;}
}