/* roulang page: index */
:root{
    --brand-900:#07332D; --brand-700:#0B6B5C; --brand-600:#0E9F8E; --brand-500:#14B8A0;
    --brand-300:#7ED9C4; --brand-100:#E4F6F1;
    --accent-500:#F2A03D; --accent-600:#D9862A; --accent-100:#FDF1DE;
    --ink-900:#0C1A18; --ink-600:#47564F; --ink-400:#7C8B85;
    --bg:#F6FAF8; --surface:#FFFFFF; --surface-alt:#EFF6F3; --border:#DCE8E3;
    --grad-brand:linear-gradient(120deg,#0B6B5C 0%,#0E9F8E 48%,#3FD0A8 100%);
    --grad-gold:linear-gradient(120deg,#F2A03D,#F7C46C);
    --radius:22px; --radius-lg:28px;
    --shadow-soft:0 10px 30px -12px rgba(11,79,68,.18);
    --shadow-lift:0 14px 34px -14px rgba(11,79,68,.26);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;background:var(--bg);color:var(--ink-600);
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font-family:inherit;}
  h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:-0.01em;}
  p{margin:0 0 1.2em;}
  p:last-child{margin-bottom:0;}
  .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;}}
  .num{font-variant-numeric:tabular-nums;}
  .section{padding-top:clamp(64px,9vw,120px);padding-bottom:clamp(64px,9vw,120px);}
  .section-tight{padding-top:clamp(48px,6vw,80px);padding-bottom:clamp(48px,6vw,80px);}
  .h2-mark{position:relative;padding-left:18px;}
  .h2-mark::before{
    content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:6px;border-radius:6px;
    background:var(--grad-brand);
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;
    color:var(--brand-700);background:var(--brand-100);border:1px solid rgba(14,159,142,.22);
    padding:6px 14px;border-radius:999px;
  }
  .eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--grad-gold);}
  /* 导航 */
  .glass-nav{
    background:rgba(255,255,255,.10);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid rgba(255,255,255,.22);
    box-shadow:0 8px 24px -12px rgba(0,0,0,.25);
    transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
  }
  .glass-nav .nav-link{color:rgba(255,255,255,.94);}
  .glass-nav .brand-text{color:#fff;}
  .glass-nav .nav-cta{
    background:var(--grad-brand);color:#fff;
  }
  .glass-nav.is-scrolled{
    background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--border);
    box-shadow:0 6px 18px -12px rgba(11,79,68,.35);
  }
  .glass-nav.is-scrolled .nav-link{color:var(--ink-900);}
  .glass-nav.is-scrolled .brand-text{color:var(--ink-900);}
  .glass-nav.is-scrolled .icon-btn{color:var(--ink-900);border-color:var(--border);}
  .nav-link{position:relative;font-size:15px;font-weight:500;padding:6px 2px;transition:color .2s ease;}
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:var(--grad-gold);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
  }
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
  .brand-grad{background:var(--grad-brand);}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    background:var(--grad-brand);color:#fff;font-weight:800;font-size:17px;letter-spacing:-.02em;
    box-shadow:0 8px 20px -10px rgba(14,159,142,.7);flex:0 0 auto;
  }
  .icon-btn{
    width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,.35);color:#fff;transition:all .22s ease;background:transparent;
  }
  .icon-btn:hover{background:rgba(255,255,255,.16);}
  /* 按钮 */
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 28px;border-radius:999px;background:var(--grad-brand);color:#fff;
    font-weight:600;font-size:15px;border:none;cursor:pointer;
    box-shadow:0 12px 26px -14px rgba(11,107,92,.85);
    transition:transform .22s ease,filter .22s ease,box-shadow .22s ease;
  }
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.98);}
  .btn-primary:focus-visible{outline:3px solid rgba(14,159,142,.35);outline-offset:2px;}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:999px;background:#fff;color:var(--ink-900);
    font-weight:600;font-size:15px;border:1px solid var(--border);cursor:pointer;
    transition:all .22s ease;
  }
  .btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-500);transform:translateY(-2px);}
  .btn-ghost:focus-visible{outline:3px solid rgba(14,159,142,.35);outline-offset:2px;}
  .btn-glass{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:999px;background:rgba(255,255,255,.12);color:#fff;
    font-weight:600;font-size:15px;border:1px solid rgba(255,255,255,.4);cursor:pointer;
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:all .22s ease;
  }
  .btn-glass:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
  .btn-glass:focus-visible{outline:3px solid rgba(255,255,255,.55);outline-offset:2px;}
  /* 卡片 */
  .card{
    background:var(--surface);border:1px solid rgba(14,159,142,.12);border-radius:var(--radius);
    box-shadow:var(--shadow-soft);position:relative;overflow:hidden;
    transition:transform 240ms ease-out,box-shadow 240ms ease-out,border-color 240ms ease-out;
  }
  .card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);
    opacity:0;transition:opacity 240ms ease-out;
  }
  .card-lift:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
  .card-lift:hover::before{opacity:1;}
  .card-plain{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);}
  /* 徽章 */
  .badge-pill{
    display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
    font-size:13px;color:var(--ink-600);background:var(--brand-100);border:1px solid rgba(14,159,142,.2);
  }
  .badge-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--grad-gold);flex:0 0 auto;}
  .badge-pill .val{font-weight:800;color:var(--brand-700);font-size:15px;font-variant-numeric:tabular-nums;}
  .badge-glass{
    display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
    font-size:13px;color:rgba(255,255,255,.92);background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.28);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  }
  .badge-glass .dot{width:8px;height:8px;border-radius:50%;background:var(--grad-gold);}
  .badge-glass .val{font-weight:800;font-size:15px;color:#fff;font-variant-numeric:tabular-nums;}
  .tag{
    display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12px;
    font-weight:600;background:var(--brand-100);color:var(--brand-700);
  }
  /* Hero */
  .hero{
    position:relative;min-height:88vh;display:flex;align-items:center;
    background-image:linear-gradient(120deg,rgba(7,51,45,.94) 0%,rgba(11,107,92,.86) 42%,rgba(14,159,142,.62) 78%,rgba(63,208,168,.45) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    padding-top:120px;padding-bottom:72px;
  }
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
    background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
    background-size:56px 56px;
  }
  .hero-inner{position:relative;z-index:2;}
  .hero h1{color:#fff;font-size:clamp(30px,5vw,48px);font-weight:800;line-height:1.2;letter-spacing:-.01em;}
  .hero p.lead{color:rgba(255,255,255,.88);font-size:clamp(16px,2vw,19px);line-height:1.75;max-width:36em;}
  .hero-figure{
    border-radius:24px;overflow:hidden;border:1px solid rgba(255,255,255,.28);
    box-shadow:0 24px 50px -22px rgba(0,0,0,.55);background:rgba(255,255,255,.08);
  }
  /* 列表项 */
  .pain-item{
    display:flex;gap:16px;padding:22px;border-radius:18px;background:var(--surface);
    border:1px solid var(--border);transition:all .24s ease;
  }
  .pain-item:hover{border-color:var(--brand-500);background:var(--surfacealt);transform:translateX(4px);}
  .pain-num{
    flex:0 0 auto;width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    background:var(--accent-100);color:var(--accent-600);font-weight:800;font-size:18px;font-variant-numeric:tabular-nums;
  }
  .step-watermark{
    font-size:64px;font-weight:800;line-height:1;color:transparent;
    background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;opacity:.28;
    font-variant-numeric:tabular-nums;
  }
  /* 数据带 */
  .data-band{
    background:linear-gradient(120deg,#07332D 0%,#0B6B5C 55%,#0E9F8E 100%);
    border-radius:var(--radius-lg);padding:clamp(32px,5vw,56px);color:#fff;position:relative;overflow:hidden;
  }
  .data-band::after{
    content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(242,160,61,.28),transparent 68%);
  }
  .data-num{font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1;font-variant-numeric:tabular-nums;color:#fff;}
  .data-label{font-size:13px;color:rgba(255,255,255,.78);margin-top:8px;}
  /* 证言 */
  .quote-card{position:relative;padding:34px 30px 30px;}
  .quote-mark{
    font-size:64px;line-height:1;font-weight:800;color:var(--brand-100);position:absolute;top:12px;left:22px;
    font-family:Georgia,serif;
  }
  .quote-text{position:relative;font-size:17px;line-height:1.8;color:var(--ink-600);}
  .avatar{width:48px;height:48px;border-radius:50%;object-fit:cover;flex:0 0 auto;border:2px solid var(--brand-100);}
  /* 资讯卡 */
  .news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:18px;}
  .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease;}
  .card-lift:hover .news-thumb img{transform:scale(1.05);}
  .thumb-tag{position:absolute;left:12px;top:12px;}
  .line-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .line-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
  .arrow-move{transition:transform .24s ease;}
  .card-lift:hover .arrow-move{transform:translateX(4px);}
  /* FAQ */
  .faq-item{
    background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden;
    transition:background .26s ease,border-color .26s ease;
  }
  .faq-item.open{background:var(--surfacealt);border-color:rgba(14,159,142,.3);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;background:transparent;border:none;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink-900);position:relative;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:4px;background:var(--grad-brand);
  }
  .faq-q span.qtext{padding-left:12px;}
  .faq-caret{transition:transform .26s ease;color:var(--brand-600);flex:0 0 auto;}
  .faq-item.open .faq-caret{transform:rotate(180deg);}
  .faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .26s ease,opacity .26s ease,padding .26s ease;padding:0 22px;}
  .faq-item.open .faq-a{max-height:420px;opacity:1;padding:0 22px 22px;}
  .faq-a p{padding-left:12px;font-size:15px;color:var(--ink-600);}
  /* CTA */
  .cta-block{
    background:var(--grad-brand);border-radius:var(--radius-lg);padding:clamp(34px,5vw,64px);
    color:#fff;position:relative;overflow:hidden;
  }
  .cta-block::after{
    content:"";position:absolute;left:-60px;bottom:-120px;width:300px;height:300px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.22),transparent 70%);
  }
  /* 页脚 */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);position:relative;}
  .site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);}
  .footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;}
  .footer-link{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;position:relative;transition:color .2s ease;}
  .footer-link::after{
    content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:#fff;transition:width .22s ease;
  }
  .footer-link:hover{color:#fff;}
  .footer-link:hover::after{width:100%;}
  /* 移动抽屉 */
  .drawer{
    position:fixed;inset:0;background:rgba(7,51,45,.96);z-index:60;
    transform:translateY(-100%);transition:transform .32s ease;padding:88px 24px 40px;
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  }
  .drawer.open{transform:translateY(0);}
  .drawer a{display:block;color:#fff;font-size:18px;font-weight:600;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.14);}
  .drawer a:last-of-type{border-bottom:none;}
  form .field{
    width:100%;padding:12px 16px;border-radius:14px;border:1px solid var(--border);
    background:#fff;color:var(--ink-900);font-size:15px;transition:all .2s ease;
  }
  form .field:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(14,159,142,.18);background:var(--brand-100);}
  form .field.err{border-color:#D9534F;}
  .err-text{color:#D9534F;font-size:13px;margin-top:6px;display:none;}
  .err-text.show{display:block;}
  .arc-divider{display:block;width:100%;height:34px;color:var(--border);}
  @media(max-width:520px){
    .hero{padding-top:104px;min-height:auto;}
    .btn-primary,.btn-ghost,.btn-glass{width:100%;}
  }

/* roulang page: category1 */
:root{
  --brand-900:#07332D; --brand-700:#0B6B5C; --brand-600:#0E9F8E; --brand-500:#14B8A0;
  --brand-300:#7ED9C4; --brand-100:#E4F6F1;
  --accent-500:#F2A03D; --accent-600:#D9862A; --accent-100:#FDF1DE;
  --ink-900:#0C1A18; --ink-600:#47564F; --ink-400:#7C8B85;
  --bg:#F6FAF8; --surface:#FFFFFF; --surface-alt:#EFF6F3; --border:#DCE8E3;
  --brand-grad:linear-gradient(120deg,#0B6B5C 0%,#0E9F8E 48%,#3FD0A8 100%);
  --gold-grad:linear-gradient(120deg,#F2A03D,#F7C46C);
  --shadow-card:0 10px 30px -12px rgba(11,79,68,.18);
  --shadow-card-hover:0 14px 34px -14px rgba(11,79,68,.26);
  --font-cn:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-600);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,p,figure,ul,ol{margin:0}
h1,h2,h3{color:var(--ink-900);font-family:var(--font-cn)}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums}
.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}}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:50;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.25);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--border);
  box-shadow:0 4px 16px -8px rgba(11,79,68,.18);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-link{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;letter-spacing:-.005em;transition:color .3s ease}
.is-scrolled .brand-link{color:var(--ink-900)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px -8px rgba(14,159,142,.65);flex:0 0 auto;
}
.brand-text{white-space:nowrap}
.nav-link{position:relative;color:rgba(255,255,255,.92);font-size:15px;padding:6px 2px;transition:color .25s ease}
.nav-link::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--gold-grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link:hover{color:#fff}
.is-scrolled .nav-link{color:var(--ink-600)}
.is-scrolled .nav-link:hover{color:var(--brand-700)}
.is-scrolled .nav-link.active{color:var(--brand-700);font-weight:600}
.icon-btn{
  width:40px;height:40px;border-radius:999px;place-items:center;cursor:pointer;
  border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.12);color:#fff;
  transition:background .24s ease,border-color .24s ease,color .24s ease,transform .24s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.24);transform:translateY(-1px)}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,159,142,.35)}
.is-scrolled .icon-btn{border-color:var(--border);background:#fff;color:var(--ink-600)}
.is-scrolled .icon-btn:hover{background:var(--brand-100);border-color:var(--brand-500);color:var(--brand-700)}
.burger{display:grid}
@media (min-width:1024px){.burger{display:none}}

/* 移动端抽屉 */
.mobile-menu{
  position:fixed;inset:0;z-index:60;padding:22px 20px 32px;
  background:rgba(7,51,45,.97);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .32s ease,opacity .32s ease;
}
.mobile-menu.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.mobile-link{
  display:block;color:rgba(255,255,255,.9);font-size:17px;padding:15px 4px;
  border-bottom:1px solid rgba(255,255,255,.12);transition:color .22s ease,padding-left .22s ease;
}
.mobile-link:hover,.mobile-link:active{color:#fff;padding-left:10px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;line-height:1;
  padding:14px 28px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .24s ease,background-color .24s ease,border-color .24s ease,filter .24s ease;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,159,142,.35)}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 12px 26px -14px rgba(14,159,142,.78)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(14,159,142,.85)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--border)}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-500);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}

/* ============ 页首区 ============ */
.page-hero{
  position:relative;min-height:44vh;display:flex;align-items:center;overflow:hidden;
  background-image:linear-gradient(112deg,rgba(7,51,45,.94) 0%,rgba(11,107,92,.84) 50%,rgba(14,159,142,.66) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:56px 56px;
}
.page-hero .hero-inner{position:relative;z-index:2;width:100%;padding-top:132px;padding-bottom:56px}
@media (min-width:768px){.page-hero .hero-inner{padding-top:156px;padding-bottom:72px}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.page-hero h1{
  color:#fff;font-size:clamp(30px,5vw,48px);font-weight:800;line-height:1.2;letter-spacing:-.01em;
  max-width:24ch;margin-top:18px;
}
.hero-lead{margin-top:18px;font-size:clamp(16px,1.7vw,19px);line-height:1.8;color:rgba(255,255,255,.86);max-width:44ch}

/* ============ 通用标签 ============ */
.badge-pill{
  display:inline-flex;align-items:center;gap:10px;border-radius:999px;
  padding:9px 16px;background:var(--brand-100);border:1px solid rgba(14,159,142,.2);
  font-size:13px;color:var(--ink-600);white-space:nowrap;
}
.badge-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--gold-grad);flex:0 0 auto}
.badge-pill strong{font-size:18px;font-weight:800;color:var(--ink-900);line-height:1;font-variant-numeric:tabular-nums}
.badge-glass{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.3);color:rgba(255,255,255,.94)}
.badge-glass strong{color:#fff}

/* ============ 板块 ============ */
.section{padding-top:clamp(64px,9vw,120px);padding-bottom:clamp(64px,9vw,120px)}
.section-tight{padding-top:clamp(48px,6vw,80px);padding-bottom:clamp(48px,6vw,80px)}
.section-title{
  position:relative;padding-left:18px;
  font-size:clamp(24px,3.4vw,34px);font-weight:700;line-height:1.3;color:var(--ink-900);
}
.section-title::before{
  content:'';position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:3px;background:var(--brand-grad);
}
.section-sub{padding-left:18px;margin-top:14px;font-size:16px;color:var(--ink-600);max-width:66ch}

/* ============ 锚点目录 ============ */
.toc-panel{
  position:sticky;top:96px;background:var(--surface);
  border:1px solid rgba(14,159,142,.12);border-radius:22px;padding:22px;
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-size:13px;font-weight:700;color:var(--ink-400);letter-spacing:.08em;margin-bottom:14px;text-transform:uppercase;
}
.toc-link{
  display:block;padding:10px 14px;border-radius:12px;font-size:14px;color:var(--ink-600);
  border-left:4px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,padding-left .22s ease;
}
.toc-link:hover{background:var(--brand-100);color:var(--brand-700)}
.toc-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;border-left-color:var(--accent-500)}
.toc-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,159,142,.28)}

/* ============ 步骤卡 ============ */
.step-card{
  position:relative;background:var(--surface);border:1px solid rgba(14,159,142,.12);
  border-radius:22px;padding:26px;box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.step-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--brand-grad);
  opacity:0;transition:opacity .24s ease-out;
}
.step-card:hover::before{opacity:1}
@media (min-width:768px){.step-card{padding:32px}}
.step-watermark{
  position:absolute;top:14px;right:20px;font-size:64px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;pointer-events:none;user-select:none;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.14;
}
.step-title{font-size:20px;font-weight:600;line-height:1.4;color:var(--ink-900);margin-bottom:12px;position:relative;z-index:1}
.step-text{font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.step-media{border-radius:22px;overflow:hidden;box-shadow:0 12px 30px -16px rgba(11,79,68,.4)}
.step-media img{width:100%;height:100%;max-height:300px;object-fit:cover;border-radius:22px}
.tick-list{display:grid;gap:10px;margin-top:18px}
.tick-list li{position:relative;padding-left:28px;font-size:15px;line-height:1.75;color:var(--ink-600)}
.tick-list li::before{
  content:'';position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--brand-100);border:1px solid rgba(14,159,142,.32);
}
.tick-list li::after{
  content:'';position:absolute;left:6px;top:12px;width:4px;height:8px;
  border-right:2px solid var(--brand-600);border-bottom:2px solid var(--brand-600);transform:rotate(42deg);
}

/* ============ 数据条 ============ */
.stat-pill{
  display:flex;align-items:center;gap:12px;border-radius:999px;padding:16px 22px;
  background:var(--brand-100);border:1px solid rgba(14,159,142,.2);
  transition:transform .24s ease,box-shadow .24s ease;
}
.stat-pill:hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}
.stat-pill .dot{width:9px;height:9px;border-radius:50%;background:var(--gold-grad);flex:0 0 auto}
.stat-num{font-size:clamp(22px,2.6vw,28px);font-weight:800;line-height:1;color:var(--ink-900);font-variant-numeric:tabular-nums}
.stat-unit{font-size:13px;font-weight:600;margin-left:2px;color:var(--ink-600)}
.stat-label{font-size:13px;color:var(--ink-600)}

/* ============ FAQ ============ */
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden;
  transition:background .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.faq-item + .faq-item{margin-top:14px}
.faq-item.open{background:var(--surface-alt);border-color:rgba(14,159,142,.3);box-shadow:var(--shadow-card)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;line-height:1.55;color:var(--ink-900);
  transition:color .24s ease;
}
.faq-q::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand-grad);
  opacity:0;transition:opacity .26s ease;
}
.faq-item.open .faq-q::before{opacity:1}
.faq-q:hover{color:var(--brand-700)}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(14,159,142,.3)}
.faq-chev{flex:0 0 auto;color:var(--brand-600);transition:transform .26s ease}
.faq-item.open .faq-chev{transform:rotate(180deg)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .26s ease,opacity .26s ease}
.faq-item.open .faq-a{max-height:400px;opacity:1}
.faq-a-inner{padding:0 22px 22px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;border-radius:28px;padding:clamp(32px,5vw,56px);
  background:var(--brand-grad);box-shadow:0 22px 44px -22px rgba(11,107,92,.6);
}
.cta-card::after{
  content:'';position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-card h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.35;position:relative;z-index:1}
.cta-card p{color:rgba(255,255,255,.9);margin-top:14px;max-width:60ch;position:relative;z-index:1}
.cta-actions{position:relative;z-index:1;margin-top:26px;display:flex;flex-wrap:wrap;gap:14px}
.btn-on-dark{background:#fff;color:var(--brand-700);box-shadow:0 12px 26px -14px rgba(0,0,0,.4)}
.btn-on-dark:hover{background:#F2FBF8;transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px)}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--brand-900);color:rgba(255,255,255,.72)}
.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--brand-grad)}
.site-footer p{margin:0}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-link{color:rgba(255,255,255,.72);font-size:14px;transition:color .22s ease}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.3);border-radius:6px}

@media (max-width:1023px){
  .step-watermark{font-size:52px;top:10px;right:16px}
}
@media (max-width:640px){
  .page-hero .hero-inner{padding-top:118px}
  .hero-lead{font-size:15.5px}
  .btn{padding:13px 22px;font-size:14.5px}
  .faq-q{font-size:15px;padding:18px}
  .faq-a-inner{padding:0 18px 20px 18px;font-size:15px}
}

/* roulang page: article */
:root{
  --brand-900:#07332D; --brand-700:#0B6B5C; --brand-600:#0E9F8E; --brand-500:#14B8A0;
  --brand-300:#7ED9C4; --brand-100:#E4F6F1;
  --accent-500:#F2A03D; --accent-600:#D9862A; --accent-100:#FDF1DE;
  --ink-900:#0C1A18; --ink-600:#47564F; --ink-400:#7C8B85;
  --bg:#F6FAF8; --surface:#FFFFFF; --surface-alt:#EFF6F3; --border:#DCE8E3;
  --grad-brand:linear-gradient(120deg,#0B6B5C 0%,#0E9F8E 48%,#3FD0A8 100%);
  --grad-gold:linear-gradient(120deg,#F2A03D,#F7C46C);
  --radius:22px; --radius-lg:28px;
  --shadow-soft:0 10px 30px -12px rgba(11,79,68,.18);
  --shadow-lift:0 18px 40px -14px rgba(11,79,68,.26);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--bg); color:var(--ink-600);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px; line-height:1.85; -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block; border:0;}
a{color:inherit; text-decoration:none;}
button{font:inherit; cursor:pointer; border:0; background:none; color:inherit;}
ul,ol{margin:0; padding:0; list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{max-width:1200px; margin:0 auto; padding:0 20px;}
@media (min-width:768px){ .container{padding:0 32px;} }
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.glass-nav{
  position:fixed; top:0; left:0; width:100%; z-index:50;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.25);
  transition:background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.glass-nav .nav-inner{display:flex; align-items:center; justify-content:space-between; height:72px; gap:16px;}
.glass-nav .nav-link, .glass-nav .brand-text, .glass-nav .nav-icon-btn{color:#fff; transition:color .25s ease;}
.glass-nav .nav-link{position:relative; font-size:15px; padding:6px 2px;}
.glass-nav .nav-link::after{
  content:''; position:absolute; left:0; right:0; bottom:-2px; height:2px;
  background:var(--grad-gold); border-radius:2px; transform:scaleX(0); transform-origin:left;
  transition:transform .26s ease-out;
}
.glass-nav .nav-link:hover::after, .glass-nav .nav-link.active::after{transform:scaleX(1);}
.glass-nav .nav-icon-btn{
  width:38px; height:38px; border-radius:999px; display:inline-flex; align-items:center; justify-content:center;
  border:1px solid rgba(255,255,255,.28); transition:background .25s ease, border-color .25s ease;
}
.glass-nav .nav-icon-btn:hover{background:rgba(255,255,255,.18);}
.glass-nav .nav-cta{
  display:inline-flex; align-items:center; gap:8px; padding:10px 20px; border-radius:999px;
  background:var(--grad-brand); color:#fff; font-weight:600; font-size:14px;
  box-shadow:0 10px 24px -14px rgba(3,40,34,.7); transition:filter .24s ease, transform .24s ease;
}
.glass-nav .nav-cta:hover{filter:brightness(1.06); transform:translateY(-2px);}
.glass-nav.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--border);
  box-shadow:0 6px 18px -14px rgba(9,60,52,.4);
}
.glass-nav.is-scrolled .nav-link,
.glass-nav.is-scrolled .nav-icon-btn,
.glass-nav.is-scrolled .brand-text{color:var(--ink-900);}
.glass-nav.is-scrolled .nav-icon-btn{border-color:var(--border);}
.glass-nav.is-scrolled .nav-icon-btn:hover{background:var(--brand-100);}
.brand-mark{
  width:38px; height:38px; border-radius:12px; display:inline-flex; align-items:center; justify-content:center;
  background:var(--grad-brand); color:#fff; font-weight:800; font-size:18px;
  box-shadow:0 8px 20px -10px rgba(7,51,45,.7);
}
.brand-text{font-weight:700; font-size:18px; letter-spacing:-.01em;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed; inset:0; z-index:60; display:none;
  background:linear-gradient(160deg,rgba(7,51,45,.98),rgba(11,107,92,.96));
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-link{
  display:block; padding:16px 4px; font-size:17px; color:#fff; font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.14); transition:padding-left .24s ease, color .24s ease;
}
.mobile-drawer .drawer-link:hover{padding-left:10px; color:var(--brand-300);}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 28px; border-radius:999px; background:var(--grad-brand);
  color:#fff; font-weight:600; font-size:15px; line-height:1;
  box-shadow:0 12px 28px -14px rgba(7,51,45,.7);
  transition:filter .24s ease, transform .24s ease, box-shadow .24s ease;
}
.btn-primary:hover{filter:brightness(1.06); transform:translateY(-2px); box-shadow:var(--shadow-lift);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:999px; background:transparent;
  border:1px solid var(--border); color:var(--ink-900); font-weight:600; font-size:15px; line-height:1;
  transition:background .24s ease, border-color .24s ease, transform .24s ease;
}
.btn-ghost:hover{background:var(--brand-100); border-color:var(--brand-500); transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-primary:focus-visible,.btn-ghost:focus-visible,.nav-icon-btn:focus-visible,a:focus-visible,button:focus-visible{
  outline:none; box-shadow:0 0 0 3px rgba(14,159,142,.35);
}

/* ---------- 通用 ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; padding:7px 16px; border-radius:999px;
  background:var(--brand-100); border:1px solid rgba(14,159,142,.2);
  color:var(--brand-700); font-size:13px; font-weight:600;
}
.dot{width:8px; height:8px; border-radius:50%; background:var(--grad-gold); display:inline-block;}
.badge-pill{
  display:inline-flex; align-items:center; gap:10px; padding:12px 20px; border-radius:999px;
  background:var(--surface); border:1px solid var(--border); box-shadow:var(--shadow-soft);
}
.badge-pill .num{font-size:clamp(20px,2.4vw,26px); line-height:1; font-weight:800; color:var(--ink-900);}
.badge-pill .lbl{font-size:13px; color:var(--ink-600);}
.h2-title{
  position:relative; padding-left:18px; font-size:clamp(24px,3.4vw,34px); line-height:1.3;
  font-weight:700; color:var(--ink-900); letter-spacing:-.01em;
}
.h2-title::before{
  content:''; position:absolute; left:0; top:.16em; bottom:.16em; width:5px; border-radius:5px;
  background:var(--grad-brand);
}
.section{padding:clamp(56px,7vw,96px) 0;}
.card-lift{
  position:relative; background:var(--surface); border:1px solid rgba(14,159,142,.12);
  border-radius:var(--radius); box-shadow:var(--shadow-soft);
  transition:transform .24s ease-out, box-shadow .24s ease-out, border-color .24s ease-out;
  overflow:hidden;
}
.card-lift::before{
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background:var(--grad-brand); opacity:0; transition:opacity .24s ease-out;
}
.card-lift:hover{transform:translateY(-4px); box-shadow:var(--shadow-lift); border-color:rgba(14,159,142,.28);}
.card-lift:hover::before{opacity:1;}
.tag-pill{
  display:inline-block; padding:6px 14px; border-radius:999px; background:var(--brand-100);
  color:var(--brand-700); font-size:13px; font-weight:600; border:1px solid rgba(14,159,142,.16);
  transition:background .24s ease, color .24s ease;
}
.tag-pill:hover{background:var(--brand-600); color:#fff;}
.share-btn{
  width:42px; height:42px; border-radius:999px; display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--border); color:var(--brand-700); background:var(--surface);
  transition:background .24s ease, color .24s ease, transform .24s ease, border-color .24s ease;
}
.share-btn:hover{background:var(--brand-100); border-color:var(--brand-500); transform:translateY(-2px);}

/* ---------- 文章正文排版 ---------- */
.prose-cn{max-width:760px; color:var(--ink-600); font-size:16px; line-height:1.95;}
.prose-cn > * + *{margin-top:1.2em;}
.prose-cn h2{
  position:relative; padding-left:16px; margin:2.5em 0 .8em; line-height:1.4;
  font-size:clamp(21px,2.6vw,27px); font-weight:700; color:var(--ink-900);
}
.prose-cn h2::before{
  content:''; position:absolute; left:0; top:.18em; bottom:.18em; width:4px; border-radius:4px;
  background:var(--grad-gold);
}
.prose-cn h3{margin:1.8em 0 .6em; font-size:20px; font-weight:600; color:var(--ink-900); line-height:1.45;}
.prose-cn strong{color:var(--ink-900); font-weight:600;}
.prose-cn a{color:var(--brand-700); text-decoration:underline; text-underline-offset:3px;}
.prose-cn a:hover{color:var(--brand-600);}
.prose-cn blockquote{
  margin:1.6em 0; padding:16px 22px; border-left:3px solid var(--brand-600);
  background:var(--brand-100); border-radius:14px; color:var(--ink-900);
}
.prose-cn blockquote p{margin:0;}
.prose-cn ul{padding-left:0;}
.prose-cn ul li{position:relative; padding-left:20px; margin-top:.6em;}
.prose-cn ul li::before{
  content:''; position:absolute; left:0; top:.78em; width:7px; height:7px; border-radius:50%;
  background:linear-gradient(120deg,#0E9F8E,#3FD0A8);
}
.prose-cn ol{counter-reset:pc; padding-left:0;}
.prose-cn ol li{counter-increment:pc; position:relative; padding-left:42px; margin-top:.7em;}
.prose-cn ol li::before{
  content:counter(pc,decimal-leading-zero);
  position:absolute; left:0; top:.42em; font-size:13px; font-weight:800; color:var(--brand-700);
  background:var(--brand-100); border-radius:8px; padding:1px 7px; line-height:1.5;
}
.prose-cn img{border-radius:18px; width:100%;}
.prose-cn figure{margin:1.8em 0;}
.prose-cn figcaption{margin-top:10px; text-align:center; font-size:13px; color:var(--ink-400);}
.prose-cn table{width:100%; border-collapse:collapse; font-size:14.5px; margin:1.6em 0; overflow:hidden; border-radius:14px;}
.prose-cn th{background:var(--surface-alt); color:var(--ink-900); font-weight:600; text-align:left;}
.prose-cn th,.prose-cn td{border:1px solid var(--border); padding:11px 14px;}
.prose-cn tbody tr:nth-child(even){background:var(--surface-alt);}
.prose-cn hr{border:0; border-top:1px solid var(--border); margin:2.4em 0;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900); color:rgba(255,255,255,.72); position:relative; margin-top:0;
}
.site-footer::before{
  content:''; position:absolute; top:0; left:0; right:0; height:1px; background:var(--grad-brand);
}
.site-footer .footer-title{color:#fff; font-weight:700; font-size:15px; margin-bottom:18px;}
.site-footer .footer-link{
  color:rgba(255,255,255,.72); font-size:14px; position:relative; display:inline-block;
  transition:color .24s ease;
}
.site-footer .footer-link::after{
  content:''; position:absolute; left:0; right:0; bottom:-3px; height:1px; background:#fff;
  transform:scaleX(0); transform-origin:left; transition:transform .26s ease-out;
}
.site-footer .footer-link:hover{color:#fff;}
.site-footer .footer-link:hover::after{transform:scaleX(1);}

@media (max-width:767px){
  .container{padding:0 20px;}
  .prose-cn{font-size:16px; line-height:1.9;}
}

/* roulang page: category2 */
:root{
  --brand-900:#07332D;
  --brand-700:#0B6B5C;
  --brand-600:#0E9F8E;
  --brand-500:#14B8A0;
  --brand-300:#7ED9C4;
  --brand-100:#E4F6F1;
  --accent-500:#F2A03D;
  --accent-600:#D9862A;
  --accent-100:#FDF1DE;
  --ink-900:#0C1A18;
  --ink-600:#47564F;
  --ink-400:#7C8B85;
  --bg:#F6FAF8;
  --surface:#FFFFFF;
  --surface-alt:#EFF6F3;
  --border:#DCE8E3;
  --radius-sm:14px;
  --radius:18px;
  --radius-lg:22px;
  --radius-xl:28px;
  --shadow-sm:0 6px 18px -10px rgba(11,79,68,.20);
  --shadow:0 10px 30px -12px rgba(11,79,68,.18);
  --shadow-lg:0 18px 44px -14px rgba(11,79,68,.26);
  --grad-brand:linear-gradient(120deg,#0B6B5C 0%,#0E9F8E 48%,#3FD0A8 100%);
  --grad-gold:linear-gradient(120deg,#F2A03D,#F7C46C);
  --sec-y:clamp(64px,9vw,120px);
  --font-cn:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,p,ul,ol{margin:0}
ul{padding-left:0;list-style:none}
:focus-visible{outline:3px solid rgba(14,159,142,.35);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ---------- 导航 ---------- */
.glass-nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:50;
  background:rgba(7,51,45,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.20);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.32);
  transition:background .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.glass-nav.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--border);
  box-shadow:0 8px 20px -16px rgba(11,79,68,.35);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:16px;
}
.brand-mark{
  width:36px;height:36px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background-image:var(--grad-brand);
  color:#fff;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(14,159,142,.7);
}
.brand-text{
  font-size:18px;font-weight:700;color:#fff;
  letter-spacing:.01em;
  transition:color .3s ease;
  white-space:nowrap;
}
.is-scrolled .brand-text{color:var(--ink-900)}

.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.88);
  padding:6px 2px;
  transition:color .22s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;height:2px;
  border-radius:2px;
  background:var(--grad-gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.is-scrolled .nav-link{color:var(--ink-600)}
.is-scrolled .nav-link:hover,.is-scrolled .nav-link.active{color:var(--brand-700)}

.icon-btn{
  width:40px;height:40px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.30);
  background:rgba(255,255,255,.10);
  color:#fff;
  cursor:pointer;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}
.icon-btn:active{transform:translateY(0)}
.is-scrolled .icon-btn{
  border-color:var(--border);
  background:var(--surface-alt);
  color:var(--brand-700);
}
.is-scrolled .icon-btn:hover{background:var(--brand-100);border-color:var(--brand-500)}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  border-radius:999px;
  border:1px solid transparent;
  background-image:var(--grad-brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  box-shadow:0 12px 26px -14px rgba(11,107,92,.65);
  transition:transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(11,107,92,.7)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn-sm{padding:11px 22px;font-size:14px}

.btn-ghost,
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  border-radius:999px;
  background:transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background .22s ease, border-color .22s ease, color .22s ease, transform .2s ease;
}
.btn-ghost{
  border:1px solid var(--border);
  color:var(--ink-900);
  background:var(--surface);
}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px)}
.btn-ghost-light{
  border:1px solid rgba(255,255,255,.45);
  color:#fff;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px)}

.mobile-drawer{
  position:fixed;
  top:72px;left:0;right:0;
  z-index:49;
  display:none;
  flex-direction:column;
  padding:14px 20px 26px;
  background:rgba(7,51,45,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 40px -24px rgba(0,0,0,.6);
}
.mobile-drawer.open{display:flex}
.drawer-link{
  color:rgba(255,255,255,.86);
  font-size:16px;
  padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:color .2s ease,padding-left .2s ease;
}
.drawer-link:hover{color:#fff;padding-left:10px}
.drawer-link.active{color:#fff;font-weight:600}

/* ---------- 页首区 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  min-height:44vh;
  display:flex;
  align-items:center;
  padding-top:150px;
  padding-bottom:clamp(52px,7vw,84px);
  background-color:var(--brand-900);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(260deg, rgba(7,51,45,.97) 0%, rgba(11,107,92,.88) 44%, rgba(20,184,160,.58) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size:48px 48px;
}
.page-hero .container{position:relative;z-index:2}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s ease}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:rgba(255,255,255,.45)}
.breadcrumb .current{color:rgba(255,255,255,.62)}

.page-h1{
  font-size:clamp(30px,5vw,46px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
  max-width:840px;
  margin-bottom:18px;
}
.page-lead{
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.7;
  color:rgba(255,255,255,.86);
  max-width:640px;
}

/* ---------- 通用板块 ---------- */
.section{padding-top:var(--sec-y);padding-bottom:var(--sec-y)}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,56px)}
.section-title{
  font-size:clamp(24px,3.4vw,34px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
  position:relative;
  padding-left:18px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;width:5px;
  border-radius:4px;
  background:var(--grad-brand);
}
.section-desc{
  margin-top:16px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ---------- 交替图文块 ---------- */
.alt-block{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:clamp(32px,5vw,64px);
  align-items:center;
}
.alt-block.reverse{grid-template-columns:1fr 1.15fr}
.alt-block.reverse .alt-media{order:2}
.alt-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid rgba(14,159,142,.12);
  box-shadow:var(--shadow);
  background:var(--surface);
}
.alt-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .5s ease;
}
.alt-media:hover img{transform:scale(1.03)}

.alt-text{position:relative}
.watermark{
  display:block;
  font-size:clamp(52px,7vw,76px);
  font-weight:800;
  line-height:1;
  letter-spacing:-.02em;
  background-image:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  opacity:.20;
  margin-bottom:-10px;
  font-variant-numeric:tabular-nums;
}
.alt-title{
  font-size:clamp(21px,2.4vw,25px);
  line-height:1.4;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:14px;
}
.alt-desc{font-size:16px;line-height:1.85;color:var(--ink-600)}
.alt-list{margin-top:20px;display:grid;gap:12px}
.alt-list li{
  position:relative;
  padding-left:26px;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink-600);
}
.alt-list li::before{
  content:"";
  position:absolute;left:0;top:.62em;
  width:9px;height:9px;border-radius:50%;
  background-image:var(--grad-gold);
  box-shadow:0 0 0 3px rgba(242,160,61,.16);
}

.blocks-stack{display:grid;gap:clamp(56px,8vw,96px)}

/* ---------- 深色数据条 ---------- */
.stat-band{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  color:#fff;
  padding-top:clamp(48px,6vw,72px);
  padding-bottom:clamp(48px,6vw,72px);
}
.stat-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:var(--grad-brand);
  opacity:.22;
}
.stat-band .container{position:relative;z-index:2}
.band-title{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  color:#fff;
  margin-bottom:26px;
  letter-spacing:-.01em;
}
.band-row{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:24px;
}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 20px;
  border-radius:999px;
  background:var(--brand-100);
  border:1px solid rgba(14,159,142,.22);
  color:var(--ink-600);
  font-size:13px;
  line-height:1.4;
}
.badge-pill .dot{
  width:8px;height:8px;border-radius:50%;flex:none;
  background-image:var(--grad-gold);
}
.badge-pill .num{
  font-size:18px;
  font-weight:800;
  color:var(--brand-700);
  font-variant-numeric:tabular-nums;
}
.badge-pill .unit{font-size:12px;color:var(--ink-400);margin-left:1px}
.badge-pill.is-glass{
  background:rgba(255,255,255,.10);
  border-color:rgba(255,255,255,.26);
  color:rgba(255,255,255,.84);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.badge-pill.is-glass .num{color:#fff}
.badge-pill.is-glass .unit{color:rgba(255,255,255,.7)}
.band-note{
  font-size:15px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
  max-width:760px;
}

/* ---------- 要点卡组 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(20px,3vw,32px);
  align-items:start;
}
.point-card{
  position:relative;
  background:var(--surface);
  border:1px solid rgba(14,159,142,.12);
  border-radius:var(--radius-lg);
  padding:30px 28px;
  box-shadow:var(--shadow);
  transition:transform .24s ease-out, box-shadow .24s ease-out, border-color .24s ease-out;
}
.point-card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:2px;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  background:var(--grad-brand);
  opacity:0;
  transition:opacity .24s ease-out;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(14,159,142,.26)}
.point-card:hover::before{opacity:1}
.point-card.offset{margin-top:44px}
.point-card h3{
  font-size:20px;
  font-weight:600;
  line-height:1.45;
  color:var(--ink-900);
  margin-bottom:14px;
}
.point-card p{font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  background:var(--brand-100);
  color:var(--brand-700);
  border:1px solid rgba(14,159,142,.18);
}
.point-list{margin-top:18px;display:grid;gap:10px}
.point-list li{
  position:relative;
  padding-left:24px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-600);
}
.point-list li::before{
  content:"";
  position:absolute;left:0;top:.62em;
  width:8px;height:8px;border-radius:2px;
  background-image:var(--grad-brand);
  opacity:.85;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:background .26s ease, border-color .26s ease, box-shadow .26s ease;
}
.faq-item + .faq-item{margin-top:14px}
.faq-item.open{
  background:var(--surface-alt);
  border-color:rgba(14,159,142,.30);
  box-shadow:var(--shadow-sm);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px 20px 28px;
  background:transparent;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  line-height:1.55;
  color:var(--ink-900);
  position:relative;
  transition:color .2s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--grad-brand);
}
.faq-q:hover{color:var(--brand-700)}
.faq-q .chev{
  flex:none;
  color:var(--brand-600);
  transition:transform .26s ease;
  display:inline-flex;
}
.faq-item.open .chev{transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .26s ease, opacity .26s ease;
}
.faq-item.open .faq-a{opacity:1}
.faq-a-inner{
  padding:0 28px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ---------- CTA ---------- */
.cta-section{padding-bottom:var(--sec-y)}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  background-image:var(--grad-brand);
  color:#fff;
  padding:clamp(36px,5vw,60px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:0 26px 60px -30px rgba(11,107,92,.7);
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:260px;height:260px;
  border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-copy{position:relative;z-index:2;max-width:600px}
.cta-title{
  font-size:clamp(22px,2.8vw,30px);
  font-weight:700;
  line-height:1.35;
  color:#fff;
  margin-bottom:12px;
}
.cta-text{font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.88)}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cta-card .btn-primary{
  background-image:none;
  background-color:#fff;
  color:var(--brand-700);
  box-shadow:0 14px 28px -16px rgba(0,0,0,.5);
}
.cta-card .btn-primary:hover{filter:brightness(.98)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background-image:var(--grad-brand);
}
.site-footer .brand-mark{width:34px;height:34px;font-size:16px}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:14px;
}
.footer-link{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease;
}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .alt-block,
  .alt-block.reverse{grid-template-columns:1fr;gap:28px}
  .alt-block.reverse .alt-media{order:0}
  .card-grid{grid-template-columns:1fr}
  .point-card.offset{margin-top:0}
}
@media (max-width:768px){
  .container{padding-left:20px;padding-right:20px}
  .page-hero{padding-top:124px;min-height:40vh}
  .band-row{gap:12px}
  .badge-pill{padding:9px 16px}
  .section-title{padding-left:14px}
  .alt-media img{aspect-ratio:16/10}
}
@media (max-width:520px){
  .page-h1{font-size:30px}
  .cta-actions{width:100%}
  .cta-actions .btn-primary,
  .cta-actions .btn-ghost-light{width:100%}
  .badge-pill{font-size:12.5px}
  .faq-q{font-size:15px;padding:18px 18px 18px 24px}
  .faq-a-inner{padding:0 22px 20px}
  .point-card{padding:24px 20px}
}