/* roulang page: index */
:root{
  --ink-900:#0A1521;
  --ink-800:#0E2033;
  --brand-700:#12467F;
  --brand-600:#1A5FA8;
  --brand-100:#E3EEF9;
  --teal-500:#0FA3A3;
  --neon:#2BE7CE;
  --orange-500:#F5763B;
  --paper:#F5F8FB;
  --card:#FFFFFF;
  --line:#E2EAF2;
  --text:#16202B;
  --muted:#5A6B7C;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  padding-bottom:88px;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--brand-600);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.1em;}
:focus-visible{outline:3px solid rgba(18,70,127,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
.section{padding-top:48px;padding-bottom:48px;}
@media (min-width:768px){.section{padding-top:64px;padding-bottom:64px;}}
@media (min-width:1024px){.section{padding-top:88px;padding-bottom:88px;}}

/* 顶栏 */
.site-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(180deg,#0A1521 0%,#0E2033 100%);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.8);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(43,231,206,0) 0%,rgba(43,231,206,.85) 50%,rgba(43,231,206,0) 100%);
}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:.2px;white-space:nowrap;}
.logo:hover{color:#fff;}
.logo-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#2BE7CE 0%,#0FA3A3 55%,#1A5FA8 100%);position:relative;flex:0 0 28px;}
.logo-mark::after{content:"";position:absolute;inset:8px;border:2px solid rgba(10,21,33,.55);border-radius:3px;}
.logo-sub{font-size:11px;color:#9FB3C8;font-weight:500;letter-spacing:1px;}
.nav-menu{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-menu{display:flex;}}
.nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:10px;
  font-size:15px;color:#C7D6E4;transition:background 220ms var(--ease),color 220ms var(--ease);
}
.nav-link:hover{background:rgba(43,231,206,.08);color:#EAF6FF;}
.nav-link.is-active{color:#EAF6FF;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 12px rgba(43,231,206,.65);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 22px;border-radius:999px;
  background:linear-gradient(135deg,#2BE7CE 0%,#1A5FA8 100%);color:#04212B;font-size:15px;font-weight:700;
  box-shadow:0 0 18px rgba(43,231,206,.35);transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{color:#04212B;transform:translateY(-1px);box-shadow:0 0 24px rgba(43,231,206,.55);}
.nav-cta:active{transform:translateY(0);}
.nav-desktop-cta{display:none;}
@media (min-width:1024px){.nav-desktop-cta{display:inline-flex;}}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:#EAF6FF;cursor:pointer;
}
@media (min-width:1024px){.menu-btn{display:none;}}
.menu-btn span{display:block;width:18px;height:2px;background:#EAF6FF;border-radius:2px;position:relative;}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#EAF6FF;border-radius:2px;}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;background:linear-gradient(180deg,#0A1521 0%,#0E2033 100%);
  transform:translateX(100%);transition:transform 260ms var(--ease);
  display:flex;flex-direction:column;padding:16px 20px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);background:transparent;color:#EAF6FF;font-size:20px;line-height:1;cursor:pointer;}
.drawer-nav{margin-top:12px;display:flex;flex-direction:column;}
.drawer-nav a{display:flex;align-items:center;height:56px;color:#C7D6E4;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);}
.drawer-nav a.is-active{color:#2BE7CE;}
.drawer-cta{margin-top:24px;display:flex;justify-content:center;height:48px;align-items:center;border-radius:999px;background:linear-gradient(135deg,#2BE7CE 0%,#1A5FA8 100%);color:#04212B;font-weight:700;}
.drawer-cta:hover{color:#04212B;}
.drawer-tip{margin-top:16px;font-size:13px;color:#9FB3C8;}
body.drawer-open{overflow:hidden;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all 220ms var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:0 2px 6px rgba(15,42,72,.05),0 14px 32px -18px rgba(15,42,72,.35);}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 6px 14px rgba(15,42,72,.08),0 26px 48px -22px rgba(15,42,72,.4);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--line);}
.btn-outline:hover{background:#F1F6FB;border-color:rgba(26,95,168,.3);color:var(--brand-700);}
.btn-dark{background:linear-gradient(135deg,#2BE7CE 0%,#1A5FA8 100%);color:#04212B;box-shadow:0 0 18px rgba(43,231,206,.35);}
.btn-dark:hover{color:#04212B;transform:translateY(-1px);box-shadow:0 0 26px rgba(43,231,206,.5);}
.btn-dark-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.btn-dark-outline:hover{color:#fff;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.5);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* 胶囊标签 */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.pill-teal{background:rgba(15,163,163,.12);color:#0B7F7F;}

/* 卡片 */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 2px 6px rgba(15,42,72,.05),0 14px 32px -18px rgba(15,42,72,.22);
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
  position:relative;
}
.card-hover:hover{border-color:rgba(26,95,168,.3);box-shadow:0 6px 14px rgba(15,42,72,.08),0 26px 48px -22px rgba(15,42,72,.28);transform:translateY(-4px);}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.watermark{
  position:absolute;top:10px;left:18px;font-size:72px;font-weight:800;line-height:1;
  color:rgba(18,70,127,.07);letter-spacing:-3px;pointer-events:none;user-select:none;
}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1.5px;color:var(--brand-600);text-transform:uppercase;}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--teal-500);}
.h1-title{font-size:clamp(30px,4.2vw,46px);line-height:1.22;font-weight:800;letter-spacing:-.3px;color:var(--text);}
.h1-title .accent{color:var(--brand-700);}
.h1-rule{width:64px;height:4px;border-radius:2px;background:var(--teal-500);margin-top:22px;}
.h2-title{font-size:clamp(23px,2.6vw,32px);line-height:1.35;font-weight:700;color:var(--text);letter-spacing:-.2px;}
.lede{font-size:16px;line-height:1.8;color:var(--muted);max-width:62ch;}

/* Hero */
.hero{background:var(--paper);}
.hero-media{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:0 2px 6px rgba(15,42,72,.05),0 14px 32px -18px rgba(15,42,72,.22);aspect-ratio:4/3;background:var(--brand-100);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(43,231,206,.55) 1px,transparent 1px);
  background-size:14px 14px;opacity:.1;
}
.trust-bar{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 0;margin-top:32px;}
@media (min-width:640px){.trust-bar{grid-template-columns:repeat(4,1fr);}}
.trust-item{padding-left:16px;border-left:1px solid var(--line);}
.trust-item:first-child{padding-left:0;border-left:0;}
.trust-num{font-size:24px;font-weight:800;color:var(--brand-700);line-height:1.2;}
.trust-label{font-size:13px;color:var(--muted);}

/* 场景 */
.scene-item{
  display:flex;flex-direction:column;gap:4px;padding:14px 16px;border-radius:12px;border:1px solid transparent;
  transition:background 220ms var(--ease);
}
.scene-item strong{font-size:16px;font-weight:600;color:var(--text);}
.scene-item span{font-size:13.5px;color:var(--muted);line-height:1.6;}
.scene-item.is-active{background:var(--brand-100);border-left:3px solid var(--teal-500);}
.scene-item.is-active strong{color:var(--brand-700);}

/* 社会认同 */
.social-band{background:#EEF3F8;}
.stat-num{font-size:28px;font-weight:800;color:var(--brand-700);line-height:1.15;}
.logo-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
@media (min-width:640px){.logo-wall{grid-template-columns:repeat(3,1fr);}}
.logo-cell{
  display:flex;align-items:center;justify-content:center;height:64px;border-radius:12px;background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:rgba(22,32,43,.45);filter:grayscale(1);transition:all 220ms var(--ease);
}
.logo-cell:hover{filter:grayscale(0);color:var(--brand-700);border-color:rgba(26,95,168,.3);}
.quote-card{position:relative;padding:28px 24px 24px;overflow:hidden;}
.quote-card::before{
  content:"\201C";position:absolute;top:-6px;left:16px;font-size:48px;line-height:1;color:rgba(18,70,127,.16);font-family:Georgia,serif;
}

/* FAQ */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 20px;font-size:16px;font-weight:600;color:var(--text);
  transition:color 220ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 20px;width:20px;height:20px;position:relative;
  background:
    linear-gradient(var(--brand-600),var(--brand-600)) center/12px 2px no-repeat,
    linear-gradient(var(--brand-600),var(--brand-600)) center/2px 12px no-repeat;
  transition:transform 220ms var(--ease);
}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--muted);}

/* CTA 块 */
.cta-block{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(135deg,#0E2033 0%,#0A1521 100%);
  padding:40px 24px;
}
@media (min-width:768px){.cta-block{padding:48px 40px;}}
.cta-block::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,231,206,.18) 0%,rgba(43,231,206,0) 70%);pointer-events:none;
}
.cta-block h2,.cta-block p,.cta-block a{position:relative;z-index:1;}

/* 页脚 */
.site-footer{position:relative;background:#0A1521;color:#9FB3C8;padding-top:64px;margin-top:0;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,231,206,0) 0%,rgba(43,231,206,.85) 50%,rgba(43,231,206,0) 100%);
}
.footer-title{font-size:14px;font-weight:700;color:#EAF6FF;letter-spacing:.4px;margin-bottom:14px;}
.footer-link{display:block;font-size:14px;color:#9FB3C8;padding:5px 0;transition:color 220ms var(--ease);}
.footer-link:hover{color:#2BE7CE;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:20px;padding-bottom:24px;font-size:13px;color:#8FA3B8;}

/* 底部固定转化条 */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  height:64px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  border-top:1px solid rgba(43,231,206,.6);
  box-shadow:0 -8px 24px -18px rgba(15,42,72,.5);
}
.bottom-bar .bar-text{font-size:13.5px;font-weight:600;color:var(--text);}
.bottom-bar .bar-close{display:none;}
@media (min-width:768px){
  body{padding-bottom:0;}
  .bottom-bar{
    left:auto;right:24px;bottom:24px;height:auto;border-radius:999px;padding:10px 12px 10px 20px;
    border:1px solid var(--line);border-top-color:rgba(43,231,206,.7);
    box-shadow:0 6px 14px rgba(15,42,72,.08),0 26px 48px -22px rgba(15,42,72,.35);
  }
  .bottom-bar .bar-close{
    display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;
    border:1px solid var(--line);background:#fff;color:var(--muted);font-size:15px;line-height:1;cursor:pointer;
  }
}
.bottom-bar.is-hidden{display:none;}

/* 表单 */
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 2px 6px rgba(15,42,72,.05),0 14px 32px -18px rgba(15,42,72,.22);}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px;}
.form-label .req{color:var(--orange-500);margin-left:2px;}
.form-input,.form-select,.form-textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);
  font-size:15px;padding:0 12px;height:44px;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.form-textarea{height:auto;padding:12px;min-height:96px;line-height:1.7;resize:vertical;}
.form-input:focus,.form-select:focus,.form-textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(18,70,127,.15);
}
.form-hint{font-size:13px;color:var(--muted);margin-top:6px;}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink-900:#0A1521;
  --ink-800:#0E2033;
  --brand-700:#12467F;
  --brand-600:#1A5FA8;
  --brand-100:#E3EEF9;
  --teal-500:#0FA3A3;
  --neon:#2BE7CE;
  --orange-500:#F5763B;
  --paper:#F5F8FB;
  --card:#FFFFFF;
  --line:#E2EAF2;
  --text:#16202B;
  --muted:#5A6B7C;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-lg:20px;
  --shadow-base:0 2px 6px rgba(15,42,72,.05), 0 14px 32px -18px rgba(15,42,72,.22);
  --shadow-hover:0 6px 14px rgba(15,42,72,.08), 0 26px 48px -22px rgba(15,42,72,.28);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow: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-left:22px}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.30);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,var(--ink-900),var(--ink-800));}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(43,231,206,.85) 28%,rgba(43,231,206,.85) 72%,transparent);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:-.1px;text-decoration:none}
.logo-mark{width:26px;height:26px;border-radius:9px;background:linear-gradient(135deg,var(--neon),var(--brand-700));box-shadow:0 0 14px rgba(43,231,206,.45);position:relative;flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:rgba(10,21,33,.55)}
.logo-sub{font-size:12px;font-weight:500;color:#9FB3C8;padding-left:10px;border-left:1px solid rgba(255,255,255,.16);line-height:1}
.nav-menu{display:none}
@media(min-width:1024px){.nav-menu{display:flex;align-items:center;gap:4px}}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;font-size:15px;color:#C7D6E4;border-radius:8px;transition:color var(--ease),background var(--ease)}
.nav-link:hover{color:#EAF6FF;background:rgba(43,231,206,.08)}
.nav-link.is-active{color:#EAF6FF}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 12px rgba(43,231,206,.65)}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;border-radius:999px;font-size:15px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--teal-500),var(--brand-700));box-shadow:0 0 18px rgba(43,231,206,.32);transition:transform var(--ease),box-shadow var(--ease),filter var(--ease)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(43,231,206,.48);filter:brightness(1.06)}
.nav-cta:active{transform:translateY(0)}
.nav-desktop-cta{display:none}
@media(min-width:768px){.nav-desktop-cta{display:inline-flex}}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.04);cursor:pointer}
.menu-btn span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:#EAF6FF;transition:var(--ease)}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#EAF6FF;transition:var(--ease)}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
@media(min-width:1024px){.menu-btn{display:none}}

.drawer{position:fixed;inset:0;z-index:70;display:none;flex-direction:column;padding:16px 20px 28px;background:linear-gradient(165deg,var(--ink-900),var(--ink-800));overflow-y:auto}
.drawer.open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid rgba(43,231,206,.35);margin-bottom:8px}
.drawer-top .logo{font-size:16px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);background:transparent;color:#EAF6FF;font-size:20px;line-height:1;cursor:pointer}
.drawer-link{display:flex;align-items:center;height:56px;font-size:16px;color:#C7D6E4;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-link:hover,.drawer-link.is-active{color:#EAF6FF}
.drawer-cta{margin-top:24px}
.drawer-tip{margin-top:14px;font-size:13px;line-height:1.7;color:#9FB3C8}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:24px 0 0;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:var(--muted);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:#A9BCCD}
.breadcrumb .current{color:#8C9EAF}

/* ---------- article layout ---------- */
.article-layout{display:flex;gap:40px;justify-content:center;align-items:flex-start;padding-top:16px;padding-bottom:8px}
.article-main{flex:1 1 auto;min-width:0;max-width:820px}
.article-aside{display:none;width:300px;flex:0 0 300px;position:sticky;top:96px}
@media(min-width:1280px){.article-aside{display:block}}

.article-tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.article-title{font-size:clamp(28px,3.6vw,38px);line-height:1.3;font-weight:800;letter-spacing:-.2px;color:var(--ink-900);max-width:820px;margin-top:6px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#B8C8D8}
.article-hero{margin-top:28px}
.article-hero img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-base);background:var(--brand-100)}
.figure-cap{margin-top:10px;font-size:13px;color:var(--muted);text-align:center}

.article-body{max-width:760px;margin:40px auto 0;font-size:16px;line-height:1.9;color:var(--text)}
.article-body > * + *{margin-top:20px}
.article-body h2{font-size:24px;line-height:1.45;font-weight:700;color:var(--ink-900);padding-left:14px;border-left:4px solid var(--teal-500);margin-top:48px}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-top:32px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink-900);margin-top:24px}
.article-body p{margin:0}
.article-body ul,.article-body ol{padding-left:22px}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--brand-600)}
.article-body ol li::marker{color:var(--brand-600);font-weight:600}
.article-body blockquote{margin:28px 0;padding:16px 20px;background:var(--brand-100);border-left:4px solid var(--brand-700);border-radius:0 12px 12px 0;color:#20323F;font-size:15px}
.article-body blockquote p{margin:0}
.article-body img{border-radius:12px;margin:24px auto;height:auto}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-600)}
.article-body strong{font-weight:700;color:var(--ink-900)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:#F2F7FB;font-weight:600;color:var(--ink-900)}
.article-body tbody tr:nth-child(even){background:#F8FBFD}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body code{background:#F2F7FB;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}

/* soft cta inside content */
.soft-cta{max-width:760px;margin:44px auto 0;background:#EEF3F8;border-radius:16px;padding:26px 24px;text-align:center}
.soft-cta h3{font-size:18px;font-weight:700;color:var(--ink-900)}
.soft-cta p{margin-top:8px;font-size:15px;color:var(--muted);line-height:1.8}
.soft-cta .btn{margin-top:16px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;border-radius:10px;font-size:15px;font-weight:600;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-base)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{background:#F1F6FB;border-color:rgba(26,95,168,.30);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-dark{background:linear-gradient(135deg,var(--teal-500),var(--brand-700));color:#fff;box-shadow:0 0 18px rgba(43,231,206,.32)}
.btn-dark:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#EAF6FF;border-color:rgba(255,255,255,.28)}
.btn-outline-light:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}

/* ---------- aside ---------- */
.aside-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-base);padding:20px}
.aside-card + .aside-card{margin-top:20px}
.aside-title{font-size:15px;font-weight:700;color:var(--ink-900);display:flex;align-items:center;gap:8px}
.aside-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--teal-500)}
.mini-link{display:block;padding:12px 0;border-bottom:1px dashed var(--line);transition:color var(--ease)}
.mini-link:last-child{border-bottom:0;padding-bottom:0}
.mini-link:hover .mini-title{color:var(--brand-700)}
.mini-title{font-size:14px;font-weight:600;line-height:1.6;color:var(--text);transition:color var(--ease)}
.mini-desc{margin-top:4px;font-size:12px;line-height:1.6;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.aside-cta{background:#fff;border:1px solid rgba(18,70,127,.35);border-radius:var(--radius-card);padding:20px;margin-top:20px}
.aside-cta h4{font-size:15px;font-weight:700;color:var(--ink-900)}
.aside-cta p{margin-top:8px;font-size:13px;line-height:1.75;color:var(--muted)}
.aside-cta .btn{margin-top:14px;width:100%}

/* ---------- article footer blocks ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:40px}
.tag-pill{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px;color:var(--muted);transition:var(--ease)}
.tag-pill:hover{color:var(--brand-700);border-color:rgba(26,95,168,.30);background:#F7FAFD}
.back-row{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px}

.related{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:24px;font-weight:700;color:var(--ink-900);letter-spacing:-.2px}
.section-head .more{font-size:14px;font-weight:600;color:var(--brand-700)}
.section-head .more:hover{color:var(--brand-600)}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-base);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(26,95,168,.30)}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px 16px 0 0}
.rel-body{padding:16px}
.rel-card h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--ink-900)}
.rel-card p{margin-top:8px;font-size:13px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .cover-link{position:absolute;inset:0;z-index:1}

/* ---------- cta block ---------- */
.cta-block{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--ink-900),var(--ink-800));border-radius:var(--radius-lg);padding:36px 24px;margin-top:72px}
@media(min-width:768px){.cta-block{padding:48px 40px}}
.cta-block::after{content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(43,231,206,.18),transparent 70%);pointer-events:none}
.cta-inner{position:relative;display:flex;flex-direction:column;gap:24px}
@media(min-width:900px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between}}
.cta-block h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;letter-spacing:-.2px}
.cta-block p{margin-top:10px;font-size:15px;line-height:1.8;color:#9FB3C8;max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:24px;margin-top:56px}
@media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:48px}}
.faq-left h2{font-size:26px;font-weight:700;color:var(--ink-900)}
.faq-left p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted)}
.faq-left .link{margin-top:16px;display:inline-block;font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:1px solid rgba(18,70,127,.35);padding-bottom:2px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-base);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:18px 52px 18px 20px;font-size:15px;font-weight:600;color:var(--text);transition:color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;margin-top:-6px;border-right:2px solid var(--brand-600);border-bottom:2px solid var(--brand-600);transform:rotate(45deg);transition:transform var(--ease);opacity:.7}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item[open] summary::after{transform:rotate(225deg);margin-top:-2px}
.faq-item .answer{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:80px;background:var(--ink-900);padding-top:64px;color:#9FB3C8}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(43,231,206,.8),transparent)}
.site-footer .logo{color:#fff}
.site-footer .footer-title{font-size:14px;font-weight:700;color:#EAF6FF;margin-bottom:14px}
.site-footer .footer-link{display:block;font-size:14px;line-height:1.9;color:#9FB3C8;transition:color var(--ease)}
.site-footer .footer-link:hover{color:var(--neon)}
.site-footer .pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;border:1px solid rgba(255,255,255,.14);font-size:12px;color:#C7D6E4}
.footer-bottom{margin-top:44px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7E93A8}

/* ---------- sticky cta ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-top:1px solid rgba(43,231,206,.55);box-shadow:0 -6px 24px rgba(10,21,33,.08)}
.sticky-cta .txt{font-size:13px;font-weight:600;color:var(--ink-900)}
.sticky-cta .btn{height:40px;padding:0 18px;font-size:14px}
.sticky-close{display:none}
@media(min-width:768px){
  .sticky-cta{left:auto;right:24px;bottom:24px;border-radius:999px;border:1px solid var(--line);border-top:1px solid rgba(43,231,206,.6);padding:10px 12px 10px 20px;box-shadow:0 12px 30px -10px rgba(10,21,33,.28)}
  .sticky-close{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:14px;line-height:1;cursor:pointer;margin-left:4px}
  .sticky-close:hover{color:var(--brand-700);border-color:rgba(26,95,168,.30)}
}
body{padding-bottom:88px}
@media(min-width:768px){body{padding-bottom:0}}

@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category1 */
:root{
    --ink-900:#0A1521;
    --ink-800:#0E2033;
    --brand-700:#12467F;
    --brand-600:#1A5FA8;
    --brand-100:#E3EEF9;
    --teal-500:#0FA3A3;
    --neon:#2BE7CE;
    --orange-500:#F5763B;
    --paper:#F5F8FB;
    --card:#FFFFFF;
    --line:#E2EAF2;
    --text:#16202B;
    --muted:#5A6B7C;
    --radius-card:16px;
    --radius-img:12px;
    --radius-lg:20px;
    --radius-btn:10px;
    --shadow-base:0 2px 6px rgba(15,42,72,.05), 0 14px 32px -18px rgba(15,42,72,.22);
    --shadow-hover:0 6px 14px rgba(15,42,72,.08), 0 26px 48px -22px rgba(15,42,72,.28);
    --ease:220ms cubic-bezier(.2,.7,.3,1);
    --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    padding-bottom:88px;
    background:var(--paper);
    color:var(--text);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.75;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  body.no-scroll{overflow:hidden;}
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  h1,h2,h3,p{margin:0;}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--teal-500);
    outline-offset:2px;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:1024px){
    .container{padding:0 32px;}
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:linear-gradient(180deg,var(--ink-900),var(--ink-800));
  }
  .site-header::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:1px;
    background:linear-gradient(90deg,rgba(43,231,206,0) 0%,rgba(43,231,206,.75) 50%,rgba(43,231,206,0) 100%);
    pointer-events:none;
  }
  .nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    height:68px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:#fff;
    font-size:17px;
    font-weight:700;
    letter-spacing:.2px;
    white-space:nowrap;
  }
  .logo-mark{
    position:relative;
    flex:none;
    width:28px;
    height:28px;
    border-radius:8px;
    background:linear-gradient(135deg,var(--neon),var(--brand-600));
    box-shadow:0 0 14px rgba(43,231,206,.35);
  }
  .logo-mark::after{
    content:"";
    position:absolute;
    inset:8px;
    border-radius:3px;
    background:rgba(10,21,33,.88);
    transform:rotate(45deg);
  }
  .logo-sub{
    font-size:11px;
    font-weight:500;
    letter-spacing:.2em;
    color:#9FB3C8;
    padding-left:2px;
  }
  .nav-menu{display:none;}
  @media (min-width:1024px){
    .nav-menu{display:flex;align-items:center;gap:4px;}
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:9px 14px;
    border-radius:8px;
    font-size:15px;
    color:#C7D6E4;
    transition:background var(--ease),color var(--ease);
  }
  .nav-link:hover{background:rgba(43,231,206,.08);color:#EAF6FF;}
  .nav-link.is-active{color:#EAF6FF;}
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:2px;
    height:2px;
    border-radius:2px;
    background:var(--neon);
    box-shadow:0 0 12px rgba(43,231,206,.65);
  }
  .nav-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:38px;
    padding:0 18px;
    border-radius:999px;
    font-size:14px;
    font-weight:600;
    color:#fff;
    background:linear-gradient(100deg,#12467F,#0FA3A3);
    box-shadow:0 0 18px rgba(43,231,206,.28);
    transition:transform var(--ease),box-shadow var(--ease);
    white-space:nowrap;
  }
  .nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(43,231,206,.45);}
  .nav-desktop-cta{display:none;}
  @media (min-width:1024px){.nav-desktop-cta{display:inline-flex;}}
  .menu-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;height:40px;
    border-radius:10px;
    border:1px solid rgba(255,255,255,.14);
    background:transparent;
    cursor:pointer;
    transition:border-color var(--ease),background var(--ease);
  }
  .menu-btn:hover{background:rgba(43,231,206,.08);border-color:rgba(43,231,206,.4);}
  .menu-btn span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:#EAF6FF;}
  .menu-btn span::before,.menu-btn span::after{
    content:"";
    position:absolute;left:0;
    width:18px;height:2px;
    border-radius:2px;
    background:#EAF6FF;
  }
  .menu-btn span::before{top:-6px;}
  .menu-btn span::after{top:6px;}
  @media (min-width:1024px){.menu-btn{display:none;}}

  /* ============ 移动抽屉 ============ */
  .drawer{
    position:fixed;
    inset:0;
    z-index:80;
    display:flex;
    flex-direction:column;
    padding:16px 20px 32px;
    background:linear-gradient(180deg,var(--ink-900),var(--ink-800));
    transform:translateX(100%);
    visibility:hidden;
    overflow-y:auto;
    transition:transform .28s var(--ease),visibility .28s var(--ease);
  }
  .drawer.is-open{transform:translateX(0);visibility:visible;}
  .drawer-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-bottom:16px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .drawer-close{
    width:40px;height:40px;
    flex:none;
    border-radius:10px;
    border:1px solid rgba(255,255,255,.18);
    background:transparent;
    color:#EAF6FF;
    font-size:22px;
    line-height:1;
    cursor:pointer;
    transition:background var(--ease),border-color var(--ease);
  }
  .drawer-close:hover{background:rgba(43,231,206,.1);border-color:rgba(43,231,206,.45);}
  .drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
  .drawer-nav a{
    display:flex;
    align-items:center;
    height:56px;
    font-size:16px;
    color:#C7D6E4;
    border-bottom:1px solid rgba(255,255,255,.08);
    transition:color var(--ease);
  }
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--neon);}
  .drawer-foot{margin-top:auto;padding-top:28px;}
  .drawer-foot .nav-cta{width:100%;height:46px;font-size:15px;}
  .drawer-foot p{margin-top:14px;font-size:13px;line-height:1.7;color:#7E93A8;}

  /* ============ 面包屑 ============ */
  .crumbs{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    padding-top:24px;
    font-size:13px;
    color:var(--muted);
  }
  .crumbs a{transition:color var(--ease);}
  .crumbs a:hover{color:var(--brand-600);}
  .crumbs .sep{color:#B7C5D3;}
  .crumbs .current{color:var(--muted);}

  /* ============ 分类页布局 ============ */
  .cat-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding:24px 0 64px;
  }
  .cat-main{order:1;min-width:0;}
  .cat-side{order:2;display:flex;flex-direction:column;gap:20px;}
  @media (min-width:1024px){
    .cat-layout{
      grid-template-columns:240px minmax(0,1fr);
      gap:40px;
      padding:32px 0 88px;
    }
    .cat-side{
      order:0;
      position:sticky;
      top:88px;
      align-self:start;
    }
  }

  .side-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px;
    box-shadow:var(--shadow-base);
  }
  .side-title{
    font-size:13px;
    font-weight:700;
    letter-spacing:.04em;
    color:var(--brand-700);
    margin-bottom:12px;
  }
  .cat-nav{display:flex;flex-direction:column;gap:4px;}
  .cat-nav a{
    display:block;
    padding:10px 12px;
    border-radius:10px;
    border-left:3px solid transparent;
    font-size:15px;
    color:var(--text);
    transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .cat-nav a:hover{background:#F1F6FB;color:var(--brand-700);}
  .cat-nav a.is-active{
    background:var(--brand-100);
    border-left-color:var(--teal-500);
    color:var(--brand-700);
    font-weight:600;
  }
  .pill{
    display:inline-flex;
    align-items:center;
    padding:4px 11px;
    border-radius:999px;
    font-size:12px;
    line-height:1.6;
    background:var(--brand-100);
    color:var(--brand-700);
    border:1px solid transparent;
    transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .pill:hover{background:#D5E6F7;}
  .kw-cloud{display:flex;flex-wrap:wrap;gap:8px;}

  .side-cta{
    background:linear-gradient(160deg,#0E2033,#123E6B);
    border:1px solid rgba(43,231,206,.18);
  }
  .side-cta .side-title{color:#8FE6DA;margin-bottom:8px;}
  .side-cta-text{
    font-size:13px;
    line-height:1.75;
    color:#9FB3C8;
    margin-bottom:16px;
  }

  /* ============ 页面标题区 ============ */
  .cat-head{margin-bottom:24px;}
  .cat-h1{
    font-size:clamp(26px,4vw,38px);
    line-height:1.28;
    font-weight:800;
    letter-spacing:-.2px;
    color:var(--text);
    margin-bottom:14px;
  }
  .cat-h1 em{font-style:normal;color:var(--brand-700);}
  .cat-lead{
    font-size:16px;
    line-height:1.8;
    color:var(--muted);
    max-width:58ch;
    margin-bottom:18px;
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;}

  .update-note{
    display:flex;
    align-items:flex-start;
    gap:10px;
    padding:12px 16px;
    border-radius:12px;
    background:var(--brand-100);
    font-size:13px;
    line-height:1.7;
    color:var(--brand-700);
    margin-bottom:24px;
  }
  .update-note::before{
    content:"";
    flex:none;
    width:8px;height:8px;
    margin-top:7px;
    border-radius:50%;
    background:var(--teal-500);
  }

  /* ============ 列表卡 ============ */
  .entry-list{display:flex;flex-direction:column;gap:16px;}
  .entry-card{
    position:relative;
    display:grid;
    grid-template-columns:1fr;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-base);
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .entry-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(26,95,168,.30);
  }
  .entry-card:focus-within{border-color:rgba(26,95,168,.45);}
  .entry-thumb{overflow:hidden;background:var(--brand-100);}
  .entry-thumb img{
    width:100%;
    height:180px;
    object-fit:cover;
    transition:transform .45s var(--ease);
  }
  .entry-card:hover .entry-thumb img{transform:scale(1.04);}
  .entry-body{
    display:flex;
    flex-direction:column;
    gap:8px;
    padding:20px 22px;
  }
  .entry-body h2{
    font-size:18px;
    font-weight:600;
    line-height:1.5;
    color:var(--text);
  }
  .entry-body h2 a{transition:color var(--ease);}
  .entry-body h2 a::after{
    content:"";
    position:absolute;
    inset:0;
    border-radius:var(--radius-card);
  }
  .entry-card:hover .entry-body h2 a{color:var(--brand-700);}
  .entry-desc{
    font-size:15px;
    line-height:1.7;
    color:var(--muted);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .entry-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-top:auto;
    padding-top:4px;
    font-size:13px;
    color:var(--muted);
  }
  .entry-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3D0DD;}
  @media (min-width:768px){
    .entry-card{grid-template-columns:240px minmax(0,1fr);}
    .entry-thumb{height:100%;}
    .entry-thumb img{height:100%;min-height:160px;}
    .entry-body{padding:22px 26px;}
  }

  /* ============ 分页 ============ */
  .pager{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    margin-top:28px;
  }
  .pager a,.pager span{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:40px;
    height:40px;
    padding:0 14px;
    border-radius:var(--radius-btn);
    border:1px solid var(--line);
    background:#fff;
    font-size:14px;
    color:var(--text);
    transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .pager a:hover{background:#F1F6FB;color:var(--brand-700);border-color:rgba(26,95,168,.3);}
  .pager .is-current{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}
  .pager .is-disabled{color:#B7C5D3;background:#F7FAFD;cursor:not-allowed;}

  /* ============ 表单 ============ */
  .section-block{margin-top:56px;}
  .section-block h2{
    font-size:clamp(22px,3vw,28px);
    font-weight:700;
    line-height:1.35;
    color:var(--text);
    margin-bottom:10px;
  }
  .section-sub{
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
    margin-bottom:24px;
    max-width:56ch;
  }
  .form-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:24px;
    box-shadow:var(--shadow-base);
  }
  .form-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
  }
  @media (min-width:768px){
    .form-grid{grid-template-columns:1fr 1fr;}
  }
  .field{display:flex;flex-direction:column;gap:6px;}
  .field label{font-size:13px;font-weight:600;color:var(--text);}
  .field .req{color:var(--orange-500);}
  .field input,.field select,.field textarea{
    height:44px;
    padding:0 12px;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    background:#fff;
    font-family:inherit;
    font-size:15px;
    color:var(--text);
    transition:border-color var(--ease),box-shadow var(--ease);
    -webkit-appearance:none;
    appearance:none;
  }
  .field textarea{
    height:auto;
    min-height:104px;
    padding:10px 12px;
    line-height:1.7;
    resize:vertical;
  }
  .field input::placeholder,.field textarea::placeholder{color:#A9B7C5;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;
    border-color:var(--brand-600);
    box-shadow:0 0 0 3px rgba(18,70,127,.15);
  }
  .field.full{grid-column:1 / -1;}
  .form-actions{display:flex;justify-content:flex-end;margin-top:18px;}
  @media (max-width:767px){.form-actions .btn{width:100%;}}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 26px;
    border:1px solid transparent;
    border-radius:var(--radius-btn);
    font-size:16px;
    font-weight:600;
    cursor:pointer;
    white-space:nowrap;
    transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  }
  .btn-primary{
    background:var(--brand-700);
    color:#fff;
    box-shadow:0 2px 6px rgba(15,42,72,.12);
  }
  .btn-primary:hover{
    background:var(--brand-600);
    transform:translateY(-1px);
    box-shadow:var(--shadow-hover);
  }
  .btn-primary:active{transform:translateY(0);}
  .btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.30);}
  .btn-ghost{
    background:#fff;
    color:var(--brand-700);
    border-color:var(--line);
  }
  .btn-ghost:hover{background:#F1F6FB;border-color:rgba(26,95,168,.30);}
  .btn-on-dark{
    background:linear-gradient(100deg,#0FA3A3,#12467F);
    color:#fff;
    box-shadow:0 0 18px rgba(43,231,206,.35);
  }
  .btn-on-dark:hover{transform:translateY(-1px);box-shadow:0 0 26px rgba(43,231,206,.5);}
  .btn-outline-light{
    background:transparent;
    color:#fff;
    border-color:rgba(255,255,255,.28);
  }
  .btn-outline-light:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5);}
  .btn-block{width:100%;}

  /* ============ FAQ ============ */
  .faq{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
  }
  .faq details{border-top:1px solid var(--line);}
  .faq details:first-child{border-top:0;}
  .faq summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:56px;
    padding:16px 24px;
    font-size:16px;
    font-weight:600;
    color:var(--text);
    cursor:pointer;
    list-style:none;
    transition:color var(--ease);
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary::after{
    content:"";
    flex:none;
    width:14px;height:14px;
    background:
      linear-gradient(var(--brand-700),var(--brand-700)) center / 14px 2px no-repeat,
      linear-gradient(var(--brand-700),var(--brand-700)) center / 2px 14px no-repeat;
    transition:transform .22s var(--ease);
  }
  .faq details[open] summary{color:var(--brand-700);}
  .faq details[open] summary::after{transform:rotate(45deg);}
  .faq-body{
    padding:0 24px 20px;
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
  }

  /* ============ CTA 大块 ============ */
  .cta-block{
    position:relative;
    overflow:hidden;
    margin-top:64px;
    padding:44px 28px;
    border-radius:var(--radius-lg);
    background:linear-gradient(135deg,#0A1521 0%,#0E2033 55%,#12467F 100%);
  }
  .cta-block::after{
    content:"";
    position:absolute;
    right:-90px;
    bottom:-130px;
    width:340px;height:340px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(43,231,206,.18),rgba(43,231,206,0) 70%);
    pointer-events:none;
  }
  .cta-inner{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-columns:1fr;
    gap:26px;
    align-items:center;
  }
  @media (min-width:900px){
    .cta-block{padding:48px 40px;}
    .cta-inner{grid-template-columns:minmax(0,1fr) auto;}
  }
  .cta-block h2{
    font-size:clamp(22px,3vw,30px);
    font-weight:700;
    line-height:1.35;
    color:#fff;
    margin-bottom:10px;
  }
  .cta-block p{
    font-size:16px;
    line-height:1.8;
    color:#9FB3C8;
    max-width:52ch;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;
    margin-top:88px;
    padding:64px 0 24px;
    background:var(--ink-900);
    color:#9FB3C8;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg,rgba(43,231,206,0),rgba(43,231,206,.8) 50%,rgba(43,231,206,0));
  }
  .footer-title{
    font-size:14px;
    font-weight:700;
    color:#EAF6FF;
    margin-bottom:14px;
  }
  .footer-link{
    display:block;
    padding:5px 0;
    font-size:14px;
    color:#9FB3C8;
    transition:color var(--ease);
  }
  .footer-link:hover{color:var(--neon);}
  .site-footer .pill{
    background:rgba(43,231,206,.1);
    color:#8FE6DA;
    border-color:rgba(43,231,206,.22);
  }
  .site-footer .pill:hover{background:rgba(43,231,206,.16);}
  .footer-bottom{
    margin-top:40px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.08);
    font-size:13px;
    color:#7E93A8;
  }

  /* ============ 底部转化条 ============ */
  .sticky-bar{
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:60;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-top:1px solid rgba(43,231,206,.55);
    box-shadow:0 -8px 24px rgba(15,42,72,.08);
  }
  .sticky-bar p{
    font-size:13px;
    font-weight:600;
    color:var(--text);
    line-height:1.4;
  }
  .sticky-bar .btn{height:40px;padding:0 18px;font-size:14px;}
  .sticky-bar .bar-close{display:none;}
  .sticky-bar.is-hidden{display:none;}
  @media (min-width:768px){
    .sticky-bar{
      left:auto;
      right:24px;
      bottom:24px;
      padding:10px 12px 10px 20px;
      border-radius:999px;
      border:1px solid var(--line);
      box-shadow:var(--shadow-hover);
    }
    .sticky-bar .bar-close{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:28px;height:28px;
      flex:none;
      border:0;
      border-radius:50%;
      background:#F1F6FB;
      color:var(--muted);
      font-size:16px;
      line-height:1;
      cursor:pointer;
      transition:background var(--ease),color var(--ease);
    }
    .sticky-bar .bar-close:hover{background:var(--brand-100);color:var(--brand-700);}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      transition-duration:.001ms !important;
    }
  }

/* roulang page: category2 */
:root{
  --ink-900:#0A1521;
  --ink-800:#0E2033;
  --brand-700:#12467F;
  --brand-600:#1A5FA8;
  --brand-100:#E3EEF9;
  --teal-500:#0FA3A3;
  --neon:#2BE7CE;
  --orange-500:#F5763B;
  --paper:#F5F8FB;
  --card:#FFFFFF;
  --line:#E2EAF2;
  --text:#16202B;
  --muted:#5A6B7C;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-lg:20px;
  --shadow-base:0 2px 6px rgba(15,42,72,.05),0 14px 32px -18px rgba(15,42,72,.22);
  --shadow-hover:0 6px 14px rgba(15,42,72,.08),0 26px 48px -22px rgba(15,42,72,.28);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
.container{
  width:100% !important;
  max-width:1200px !important;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container{padding-left:32px;padding-right:32px}
}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(90deg,var(--ink-900) 0%,var(--ink-800) 100%);
  transition:box-shadow var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(43,231,206,0) 0%,rgba(43,231,206,.85) 50%,rgba(43,231,206,0) 100%);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:.2px;white-space:nowrap}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;position:relative;
  background:linear-gradient(135deg,var(--neon) 0%,var(--teal-500) 100%);
  box-shadow:0 0 14px rgba(43,231,206,.35);
}
.logo-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:8px;height:8px;border-radius:50%;
  transform:translate(-50%,-50%);background:#062A33;
}
.logo-sub{font-size:12px;font-weight:500;color:#8FB2CC;border-left:1px solid rgba(255,255,255,.18);padding-left:10px;margin-left:2px}
.nav-menu{display:none}
.nav-link{
  position:relative;display:inline-block;padding:8px 13px;border-radius:8px;
  font-size:15px;color:#C7D6E4;transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:rgba(43,231,206,.08);color:#EAF6FF}
.nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.45)}
.nav-link.is-active{color:#EAF6FF}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 12px rgba(43,231,206,.65);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 20px;
  border-radius:999px;font-size:14px;font-weight:600;color:#04212B;
  background:linear-gradient(120deg,#2BE7CE 0%,#0FA3A3 100%);
  box-shadow:0 0 18px rgba(43,231,206,.30);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(43,231,206,.48);filter:brightness(1.04)}
.nav-cta:active{transform:none}
.nav-cta:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.5)}
.nav-desktop-cta{display:none}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:10px;border:1px solid rgba(255,255,255,.18);background:transparent;cursor:pointer;
  transition:border-color var(--ease),background var(--ease);
}
.menu-btn:hover{border-color:rgba(43,231,206,.55);background:rgba(43,231,206,.08)}
.menu-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.45)}
.menu-btn span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:#EAF6FF}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#EAF6FF;
}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
@media (min-width:768px){
  .nav-desktop-cta{display:inline-flex}
}
@media (min-width:1024px){
  .nav-menu{display:flex;align-items:center;gap:2px}
  .menu-btn{display:none}
}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:70;display:flex;flex-direction:column;
  background:var(--ink-900);transform:translateX(100%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;height:68px;
  padding:0 20px;border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:transparent;color:#EAF6FF;font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.45)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 20px 0}
.drawer-link{
  display:flex;align-items:center;height:56px;color:#C7D6E4;font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.08);transition:color var(--ease);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--neon)}
.drawer-foot{margin-top:auto;padding:20px 20px 28px;border-top:1px solid rgba(255,255,255,.08)}
.drawer-foot p{font-size:13px;color:#9FB3C8;margin-bottom:14px;line-height:1.7}
body.nav-locked{overflow:hidden}

/* ---------- 通栏 banner ---------- */
.banner{padding:24px 0 0}
.banner-inner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  min-height:300px;display:flex;flex-direction:column;justify-content:center;
  padding:40px 28px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-base);
}
.banner-inner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(10,21,33,.72) 0%,rgba(10,21,33,.55) 60%,rgba(14,32,51,.62) 100%);
}
.banner-inner > *{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(234,246,255,.72);margin-bottom:18px}
.crumbs a{color:rgba(234,246,255,.86);transition:color var(--ease)}
.crumbs a:hover{color:var(--neon)}
.crumbs .sep{color:rgba(234,246,255,.4)}
.crumbs .current{color:#9FB3C8}
.banner h1{
  color:#fff;font-size:clamp(28px,4.2vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.2px;
  max-width:20ch;
}
.banner h1 em{font-style:normal;color:#7DEBDB}
.banner .banner-sub{margin-top:16px;color:#C7D6E4;font-size:16px;line-height:1.8;max-width:52ch}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.banner-tags span{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;font-size:12.5px;
  color:#BFE9E2;background:rgba(43,231,206,.12);border:1px solid rgba(43,231,206,.28);
}
@media (min-width:768px){
  .banner-inner{padding:52px 48px;min-height:320px}
}

/* ---------- 通用板块 ---------- */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.section-head{max-width:640px;margin-bottom:32px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-700);letter-spacing:.4px;margin-bottom:12px;
}
.section-kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--teal-500)}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700;color:var(--ink-900)}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.8}

/* ---------- 自查数据条 ---------- */
.fact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (min-width:1024px){.fact-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.fact-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-base);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.fact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(26,95,168,.30)}
.fact-value{font-size:26px;font-weight:800;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums}
.fact-label{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 交错问题网格 ---------- */
.qa-card{
  position:relative;display:flex;flex-direction:column;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-base);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.qa-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(26,95,168,.30)}
.qa-index{
  position:absolute;top:8px;right:18px;font-size:64px;font-weight:800;line-height:1;
  color:rgba(18,70,127,.10);letter-spacing:-2px;pointer-events:none;
}
.qa-media{width:100%;border-radius:var(--radius-sm);overflow:hidden;background:var(--brand-100)}
.qa-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.qa-card:hover .qa-media img{transform:scale(1.03)}
.qa-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--brand-700);background:var(--brand-100);
}
.qa-body h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--ink-900)}
.qa-body h3 a{transition:color var(--ease)}
.qa-body h3 a:hover{color:var(--brand-600)}
.qa-body h3 a::after{content:"";position:absolute;inset:0}
.qa-body h3 a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.30);border-radius:6px}
.qa-summary{
  font-size:15px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.qa-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:#7E8FA0;font-variant-numeric:tabular-nums}
.qa-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D0DC}
.qa-link{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.qa-card:hover .qa-link{color:var(--brand-600)}
@media (min-width:1024px){
  .qa-card{flex-direction:row;align-items:flex-start;gap:22px;padding:26px}
  .qa-card.reverse{flex-direction:row-reverse}
  .qa-media{flex:0 0 208px;width:208px}
  .qa-body{flex:1 1 auto}
}

/* ---------- 处理流程 ---------- */
.flow-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 24px;box-shadow:var(--shadow-base);
}
.flow-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.flow-grid{grid-template-columns:repeat(3,1fr);gap:28px}}
.flow-item{position:relative;padding-left:52px}
.flow-num{
  position:absolute;left:0;top:0;width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  color:var(--teal-500);background:rgba(15,163,163,.10);border:1px solid rgba(15,163,163,.25);
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:6px}
.flow-item p{font-size:14.5px;line-height:1.8;color:var(--muted)}

/* ---------- 表单 ---------- */
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px;box-shadow:var(--shadow-base);max-width:760px;margin:0 auto;
}
@media (min-width:768px){.form-card{padding:32px}}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--ink-900)}
.field label .req{color:var(--orange-500);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 13px;font-size:14.5px;color:var(--text);
  border:1px solid var(--line);border-radius:10px;background:#fff;
  transition:border-color var(--ease),box-shadow var(--ease);
  font-family:inherit;
}
.field textarea{height:auto;min-height:110px;padding:12px 13px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(18,70,127,.15);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#7E8FA0 50%),linear-gradient(135deg,#7E8FA0 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.form-foot{grid-column:1 / -1;display:flex;flex-direction:column;gap:12px;margin-top:4px}
.form-note{font-size:13px;color:var(--muted);line-height:1.7}
.form-tip{display:none;font-size:13.5px;color:var(--brand-700);background:var(--brand-100);border-radius:10px;padding:10px 14px}
.form-tip.show{display:block}
@media (min-width:768px){
  .form-foot{flex-direction:row;align-items:center;justify-content:space-between}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;
  border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:0 2px 6px rgba(15,42,72,.08)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 6px 14px rgba(15,42,72,.12),0 18px 34px -20px rgba(15,42,72,.4)}
.btn-primary:active{transform:none;box-shadow:0 2px 6px rgba(15,42,72,.08)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.30)}
.btn-secondary{background:#fff;color:var(--brand-700);border-color:var(--line)}
.btn-secondary:hover{background:#F1F6FB;border-color:rgba(18,70,127,.30);transform:translateY(-1px)}
.btn-secondary:active{transform:none}
.btn-secondary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.22)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}

/* ---------- FAQ ---------- */
.faq-narrow{max-width:760px;margin:0 auto}
.faq-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-base)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;padding:19px 56px 19px 22px;
  font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-600)}
.faq-item summary:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(18,70,127,.25)}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:13px;height:13px;margin-top:-6.5px;
  background:
    linear-gradient(var(--brand-700),var(--brand-700)) center/13px 2px no-repeat,
    linear-gradient(var(--brand-700),var(--brand-700)) center/2px 13px no-repeat;
  transition:transform var(--ease);
}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- 深色 CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,var(--ink-900) 0%,var(--ink-800) 100%);
  padding:36px 24px;
}
.cta-block::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,231,206,.18) 0%,rgba(43,231,206,0) 70%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-direction:column;gap:22px}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.8vw,30px);line-height:1.35;font-weight:700;max-width:22ch}
.cta-inner p{color:#9FB3C8;font-size:15px;line-height:1.8;margin-top:10px;max-width:40ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;border-radius:10px;
  font-size:15px;font-weight:600;color:#04212B;
  background:linear-gradient(120deg,#2BE7CE 0%,#1A5FA8 130%);
  box-shadow:0 0 18px rgba(43,231,206,.35);
  transition:transform var(--ease),box-shadow var(--ease);border:0;cursor:pointer;
}
.btn-neon:hover{transform:translateY(-1px);box-shadow:0 0 26px rgba(43,231,206,.5)}
.btn-neon:active{transform:none}
.btn-neon:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.5)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:600;color:#fff;background:transparent;border:1px solid rgba(255,255,255,.28);
  transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.5);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.45)}
@media (min-width:768px){
  .cta-block{padding:48px 44px}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--ink-900);color:#9FB3C8;padding-top:56px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,231,206,0) 0%,rgba(43,231,206,.85) 50%,rgba(43,231,206,0) 100%);
}
.site-footer .logo{font-size:16px}
.footer-title{color:#EAF6FF;font-size:14px;font-weight:600;margin-bottom:12px}
.footer-link{display:block;font-size:14px;color:#9FB3C8;padding:5px 0;transition:color var(--ease),transform var(--ease)}
.footer-link:hover{color:var(--neon);transform:translateX(2px)}
.footer-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,231,206,.4);border-radius:4px}
.pill{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12px;
  color:#8FE9DA;background:rgba(43,231,206,.10);border:1px solid rgba(43,231,206,.22);
}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 30px;font-size:13px;color:#7E93A8;line-height:1.8;
}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  height:64px;padding:0 16px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-top:1px solid rgba(43,231,206,.55);
  box-shadow:0 -8px 24px -18px rgba(15,42,72,.4);
}
.sticky-cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,231,206,0),rgba(43,231,206,.9),rgba(43,231,206,0));
}
.sticky-cta-text{font-size:13.5px;font-weight:600;color:var(--ink-900)}
.sticky-cta-btn{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:#fff;background:var(--brand-700);
  transition:background var(--ease),transform var(--ease);
}
.sticky-cta-btn:hover{background:var(--brand-600);transform:translateY(-1px)}
.sticky-cta-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.3)}
.sticky-close{
  display:none;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  background:#F1F6FB;color:var(--muted);font-size:15px;line-height:1;cursor:pointer;
}
.sticky-close:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,70,127,.25)}
@media (min-width:768px){
  .sticky-cta{
    left:auto;right:24px;bottom:24px;height:auto;padding:12px 14px 12px 20px;border-radius:999px;
    border:1px solid var(--line);border-top:1px solid var(--line);
    box-shadow:0 10px 30px -12px rgba(15,42,72,.35),0 26px 48px -26px rgba(15,42,72,.4);
  }
  .sticky-cta::before{display:none}
  .sticky-close{display:inline-flex;align-items:center;justify-content:center;margin-left:4px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}