/* roulang page: index */
:root{
  --ink:#0F1E1C;--ink-2:#17302B;--ink-3:#1F3D36;
  --lime:#C4F04B;--lime-d:#A9D62F;
  --coral:#FF7A45;
  --paper:#F5F3EC;--card:#FFFFFF;--card-2:#FBF9F3;--line:#E3E0D6;
  --text:#16211E;--text-2:#5A6560;--text-3:#8B948F;
  --sh-1:0 1px 2px rgba(15,30,28,.06),0 8px 24px rgba(15,30,28,.06);
  --sh-2:0 2px 6px rgba(15,30,28,.08),0 18px 40px rgba(15,30,28,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;background:var(--paper);color:var(--text);line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px}
.panel-dark :focus-visible,.footer :focus-visible,.demo-panel :focus-visible{outline-color:var(--lime)}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:639px){.wrap{padding:0 18px}}

/* ============ 导航 ============ */
.navbar{position:sticky;top:12px;z-index:60;padding-top:12px}
.navbar-inner{display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1);padding:10px 14px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{position:relative;width:24px;height:24px;border-radius:8px;background:var(--ink);display:grid;place-items:center;flex:none}
.logo-mark::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}
.logo-text{font-size:17px;font-weight:800;color:var(--ink);line-height:1.1;letter-spacing:0}
.logo-tag{display:inline-block;margin-left:8px;font-size:11px;font-weight:600;color:var(--text-2);background:var(--card-2);border:1px solid var(--line);border-radius:999px;padding:2px 8px;vertical-align:middle}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;min-width:0}
.nav-item{display:inline-flex;align-items:center;gap:7px;padding:9px 13px;border-radius:12px;font-size:14px;color:var(--text-2);border:1px solid transparent;transition:all .16s ease;white-space:nowrap}
.nav-item svg{flex:none;opacity:.75}
.nav-item:hover{background:var(--card-2);border-color:var(--line);color:var(--ink)}
.nav-item:hover svg{opacity:1}
.nav-item.active{background:var(--card-2);border-color:var(--line);color:var(--ink);font-weight:600}
.nav-item.active svg{opacity:1}
.nav-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none;opacity:0;transition:opacity .16s ease}
.nav-item.active .nav-dot{opacity:1}
.nav-cta{flex:0 0 auto}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--card-2);border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px;margin-left:auto}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{display:none;margin-top:10px;background:var(--card-2);border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--sh-1)}
.mobile-panel.open{display:block}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.m-item{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;font-size:14px;color:var(--text-2);min-height:48px}
.m-item.active{color:var(--ink);font-weight:600;border-color:rgba(15,30,28,.18)}
.m-item.active::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none}
.m-cta{margin-top:12px;display:flex;width:100%}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:flex}
}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;border:0;transition:all .18s ease;line-height:1}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-d);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary:active{transform:scale(.99);box-shadow:none}
.btn-dark{background:var(--ink);color:var(--lime)}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-dark:active{transform:scale(.99)}
.btn-outline{height:44px;padding:0 22px;border-radius:12px;background:transparent;border:1.5px solid var(--ink);color:var(--ink);font-weight:500}
.btn-outline:hover{background:var(--card-2);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-outline:active{transform:scale(.99)}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);padding:0;background:none;border:0}
.btn-ghost svg{transition:transform .18s ease}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn:disabled,.btn.disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 通用组件 ============ */
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1)}
.card-link{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card-link:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-lime{background:rgba(196,240,75,.16);color:var(--ink)}
.badge-soft{background:var(--card-2);color:var(--text-2);border:1px solid var(--line)}
.badge-dark{background:rgba(196,240,75,.16);color:var(--lime)}
.hl{background:linear-gradient(transparent 62%,var(--lime) 62%);padding:0 2px}
.section{padding:96px 0}
.section-alt{background:var(--card-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.sec-title{position:relative;padding-left:18px;font-size:30px;font-weight:700;line-height:1.3;letter-spacing:0}
.sec-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--lime)}
.sec-desc{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.7;max-width:640px}
.sec-link{font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
.sec-link svg{transition:transform .18s ease}
.sec-link:hover svg{transform:translateX(3px)}
.sec-link:hover{color:var(--lime-d)}
[id]{scroll-margin-top:96px}
@media (max-width:1023px){.section{padding:72px 0}.sec-title{font-size:26px}}
@media (max-width:639px){.section{padding:56px 0}.sec-title{font-size:22px}.sec-head{margin-bottom:28px}}

/* ============ Hero ============ */
.hero{padding:56px 0 88px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--card-2);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--text-2);font-weight:500}
.hero-badge .status-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none;box-shadow:0 0 0 3px rgba(196,240,75,.25)}
.hero h1{margin-top:20px;font-size:48px;font-weight:800;line-height:1.22;letter-spacing:0;max-width:15em}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);line-height:1.75;max-width:30em}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.hero-stats{margin-top:38px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;max-width:520px}
.hero-stat{padding:0 18px;border-left:1px solid var(--line)}
.hero-stat:first-child{padding-left:0;border-left:0}
.hero-stat strong{display:block;font-size:32px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--ink)}
.hero-stat span{display:block;margin-top:6px;font-size:12px;color:var(--text-3);line-height:1.4}
.hero-visual{position:relative}
.hero-visual .main-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;box-shadow:var(--sh-2)}
.float-card{position:absolute;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-2);padding:10px 14px;font-size:13px;color:var(--text-2)}
.float-card strong{font-size:19px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;margin-right:6px}
.float-tl{top:16px;left:16px;display:flex;align-items:center;gap:8px}
.float-tl .status-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none}
.float-br{bottom:16px;right:16px;padding:12px 16px}
@media (max-width:1023px){
  .hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:-1}
  .hero h1{font-size:34px;max-width:100%}
  .hero-sub{font-size:16px}
}
@media (max-width:639px){
  .hero h1{font-size:30px}
  .hero-stats{grid-template-columns:1fr 1fr;row-gap:18px;max-width:100%}
  .hero-stat:nth-child(3){border-left:0;padding-left:0}
  .float-br{display:none}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
}

/* ============ Bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-lg{grid-column:span 7;background:var(--ink);color:#F2F6F0;border-radius:18px;padding:32px;box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06);display:flex;flex-direction:column;gap:14px}
.bento-lg h3{font-size:24px;font-weight:700;line-height:1.35;color:#F2F6F0}
.bento-lg p{font-size:15px;line-height:1.8;color:rgba(242,246,240,.7)}
.bento-lg .panel-list{display:grid;gap:10px;margin-top:4px}
.bento-lg .panel-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(242,246,240,.82);line-height:1.65}
.bento-lg .panel-list li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--lime);margin-top:9px;flex:none}
.panel-stat{margin-top:auto;display:flex;align-items:baseline;gap:10px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1)}
.panel-stat strong{font-size:40px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1}
.panel-stat span{font-size:13px;color:rgba(242,246,240,.66)}
.bento-sm-wrap{grid-column:span 5;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.bento-sm{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.bento-sm:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18)}
.bento-sm .ico{width:36px;height:36px;border-radius:12px;background:var(--card-2);border:1px solid var(--line);display:grid;place-items:center;color:var(--ink)}
.bento-sm h3{font-size:17px;font-weight:600;line-height:1.45}
.bento-sm p{font-size:13px;color:var(--text-2);line-height:1.65}
.bento-wide{grid-column:span 12;display:flex;align-items:center;gap:20px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px 26px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.bento-wide:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18)}
.bento-wide .ico{width:44px;height:44px;border-radius:14px;background:rgba(196,240,75,.16);display:grid;place-items:center;color:var(--ink);flex:none}
.bento-wide h3{font-size:18px;font-weight:600}
.bento-wide p{font-size:14px;color:var(--text-2);margin-top:4px}
.bento-wide .arrow{margin-left:auto;color:var(--text-3);flex:none;transition:transform .18s ease,color .18s ease}
.bento-wide:hover .arrow{transform:translateX(4px);color:var(--ink)}
@media (max-width:1023px){
  .bento-lg,.bento-sm-wrap,.bento-wide{grid-column:span 12}
}
@media (max-width:639px){
  .bento-sm-wrap{grid-template-columns:1fr}
  .bento-lg{padding:24px}
  .bento-wide{flex-direction:column;align-items:flex-start;gap:12px}
  .bento-wide .arrow{display:none}
}

/* ============ 演示区 ============ */
.demo-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start}
.demo-panel{background:var(--ink-2);border-radius:18px;padding:26px;box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06);color:#F2F6F0}
.demo-panel .demo-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.demo-panel .demo-head span{font-size:13px;color:rgba(242,246,240,.6)}
.demo-row{margin-bottom:14px}
.demo-row label{display:block;font-size:12px;color:rgba(242,246,240,.55);margin-bottom:6px}
.fake-input{height:44px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;padding:0 14px;font-size:14px;color:rgba(242,246,240,.5);letter-spacing:2px}
.demo-btn{margin-top:20px;height:46px;border-radius:999px;background:var(--lime);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}
.demo-status{margin-top:16px;display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(242,246,240,.66);padding-top:14px;border-top:1px solid rgba(255,255,255,.1)}
.demo-status .status-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none}
.demo-steps{display:grid;gap:0}
.step{position:relative;padding:0 0 28px 54px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:17px;top:38px;bottom:0;width:1px;border-left:1px dashed var(--line)}
.step:last-child::before{display:none}
.step-num{position:absolute;left:0;top:0;width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.step h3{font-size:18px;font-weight:600;line-height:1.45}
.step p{font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.7}
@media (max-width:1023px){.demo-grid{grid-template-columns:1fr;gap:32px}}

/* ============ 证据区 ============ */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1);overflow:hidden;margin-bottom:32px}
.proof-stat{padding:26px 24px;border-left:1px solid var(--line)}
.proof-stat:first-child{border-left:0}
.proof-stat strong{display:block;font-size:38px;font-weight:800;line-height:1.05;font-variant-numeric:tabular-nums;color:var(--ink)}
.proof-stat span{display:block;margin-top:8px;font-size:13px;color:var(--text-3);line-height:1.4}
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote-card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1);padding:28px}
.quote-card .q-mark{color:var(--lime-d)}
.quote-card p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--text)}
.quote-card footer{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px}
.q-avatar{width:34px;height:34px;border-radius:10px;background:var(--card-2);border:1px solid var(--line);display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--ink);flex:none}
.q-name{font-size:14px;font-weight:600;color:var(--ink);line-height:1.3}
.q-role{font-size:12px;color:var(--text-3);line-height:1.3}
.proof-badges{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px}
.proof-badges span{display:inline-flex;align-items:center;gap:7px;background:var(--card-2);border:1px solid var(--line);border-radius:8px;padding:8px 14px;font-size:13px;color:var(--text-2)}
.proof-badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none}
@media (max-width:1023px){
  .proof-stats{grid-template-columns:1fr 1fr}
  .proof-stat:nth-child(3){border-left:0}
  .proof-stat:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:639px){
  .proof-grid{grid-template-columns:1fr}
  .proof-stat{padding:20px 18px}
  .proof-stat strong{font-size:30px}
}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news-card{display:flex;gap:18px;padding:18px;align-items:flex-start;overflow:hidden}
.news-thumb{width:150px;flex:none;border-radius:12px;overflow:hidden;background:var(--card-2)}
.news-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{min-width:0;flex:1;display:flex;flex-direction:column;gap:8px}
.news-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-excerpt{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:8px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.news-time{font-size:13px;color:var(--text-3)}
.news-arrow{color:var(--text-3);transition:transform .18s ease,color .18s ease}
.news-card:hover .news-arrow{transform:translateX(3px);color:var(--ink)}
.news-empty{border:1.5px dashed var(--line);border-radius:18px;min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:var(--card-2);padding:28px;text-align:center}
.news-empty svg{color:var(--text-3)}
.news-empty h3{font-size:16px;font-weight:600;color:var(--text-2)}
.news-empty p{font-size:14px;color:var(--text-3)}
@media (max-width:1023px){.news-grid{grid-template-columns:1fr}}
@media (max-width:639px){
  .news-card{flex-direction:column;padding:16px}
  .news-thumb{width:100%}
  .news-thumb img{aspect-ratio:16/9}
}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1);padding:30px 26px;display:flex;flex-direction:column;gap:16px;position:relative;transition:transform .18s ease,box-shadow .18s ease}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.price-card h3{font-size:19px;font-weight:700}
.price-note{font-size:13px;color:var(--text-2);line-height:1.6;min-height:42px}
.price-amount{display:flex;align-items:baseline;gap:4px;padding:6px 0}
.price-amount strong{font-size:42px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;color:var(--ink)}
.price-amount span{font-size:13px;color:var(--text-3)}
.price-features{display:grid;gap:10px;padding-top:6px}
.price-features li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-2);line-height:1.6}
.price-features svg{flex:none;margin-top:4px;color:var(--lime-d)}
.price-card .btn{width:100%;margin-top:auto}
.price-mid{background:var(--ink);border-color:var(--ink);color:#F2F6F0;transform:translateY(-12px);box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06)}
.price-mid:hover{transform:translateY(-14px)}
.price-mid h3,.price-mid .price-amount strong{color:#F2F6F0}
.price-mid .price-note,.price-mid .price-features li{color:rgba(242,246,240,.72)}
.price-mid .price-amount span{color:rgba(242,246,240,.5)}
.price-mid .price-features svg{color:var(--lime)}
.price-flag{position:absolute;top:-12px;right:20px;background:var(--coral);color:#fff;font-size:12px;font-weight:600;border-radius:999px;padding:4px 12px;line-height:1.4}
@media (max-width:1023px){
  .price-grid{grid-template-columns:1fr}
  .price-mid{transform:none}
  .price-mid:hover{transform:translateY(-2px)}
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.faq-col{display:grid;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-1);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item.open{border-color:rgba(15,30,28,.28);box-shadow:var(--sh-2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;background:none;border:0;text-align:left;padding:18px 20px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:2px}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 20px 16px;font-size:15px;color:var(--text-2);line-height:1.8}
@media (max-width:1023px){.faq-grid{grid-template-columns:1fr}}
@media (max-width:639px){.faq-q{font-size:16px;padding:16px}}

/* ============ 结尾 CTA ============ */
.cta-block{position:relative;overflow:hidden;background:var(--ink);border-radius:24px;padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-2)}
.cta-block::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.cta-block h2{position:relative;z-index:1;font-size:30px;font-weight:800;color:#F2F6F0;line-height:1.3}
.cta-block p{position:relative;z-index:1;margin-top:10px;font-size:15px;color:rgba(242,246,240,.7);line-height:1.7}
.cta-block .btn{position:relative;z-index:1;flex:none}
@media (max-width:1023px){
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .cta-block h2{font-size:24px}
  .cta-block .btn{width:100%}
}
@media (max-width:639px){.cta-block{padding:30px 22px;border-radius:18px}}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#F2F6F0;margin-top:96px;border-top:1px solid rgba(255,255,255,.08)}
.footer-inner{padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.3fr;gap:32px}
.footer .logo-text{color:#F2F6F0}
.footer .logo-mark{background:var(--lime)}
.footer .logo-mark::after{background:var(--ink)}
.footer-brand p{margin-top:16px;font-size:13px;color:rgba(242,246,240,.6);line-height:1.8;max-width:24em}
.social-row{margin-top:20px;display:flex;gap:10px}
.social-btn{width:38px;height:38px;border-radius:12px;background:var(--ink-2);border:1px solid rgba(255,255,255,.08);display:grid;place-items:center;color:rgba(242,246,240,.7);transition:all .18s ease}
.social-btn:hover{background:var(--ink-3);color:var(--lime);transform:translateY(-1px)}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.4px;color:rgba(242,246,240,.95);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:13px;color:rgba(242,246,240,.58);transition:color .16s ease}
.footer-col a:hover{color:var(--lime)}
.contact-card{background:var(--ink-2);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:20px}
.contact-card h4{font-size:14px;font-weight:600;color:#F2F6F0;margin-bottom:12px}
.contact-card dl{margin:0;display:grid;gap:10px}
.contact-card dt{font-size:12px;color:rgba(242,246,240,.45);line-height:1.3}
.contact-card dd{margin:2px 0 0;font-size:13px;color:rgba(242,246,240,.85);line-height:1.5}
.footer-bottom{margin-top:48px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(242,246,240,.5)}
@media (max-width:1023px){
  .footer{margin-top:72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:span 2}
  .contact-card{grid-column:span 2}
}
@media (max-width:639px){
  .footer-inner{padding-top:44px}
  .footer-grid{gap:24px}
}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:70;display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px;box-shadow:var(--sh-2);opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .2s ease,transform .2s ease}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.float-main{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;background:var(--lime);color:var(--ink);font-size:14px;font-weight:600;transition:background .18s ease}
.float-main:hover{background:var(--lime-d)}
.float-sub{display:inline-flex;align-items:center;height:44px;padding:0 16px;border-radius:999px;font-size:14px;color:var(--text-2);font-weight:500}
.float-sub:hover{background:var(--card-2);color:var(--ink)}
@media (max-width:639px){
  .float-cta{left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;padding:8px 14px;gap:10px;transform:translateY(100%)}
  .float-cta.show{transform:translateY(0)}
  .float-main{flex:1;justify-content:center}
  .float-sub{display:none}
  body{padding-bottom:72px}
}

/* roulang page: article */
:root{
  --ink:#0F1E1C;
  --ink-2:#17302B;
  --ink-3:#1F3D36;
  --lime:#C4F04B;
  --lime-d:#A9D62F;
  --coral:#FF7A45;
  --paper:#F5F3EC;
  --card:#FFFFFF;
  --card-2:#FBF9F3;
  --line:#E3E0D6;
  --text:#16211E;
  --text-2:#5A6560;
  --text-3:#8B948F;
  --light:#F2F6F0;
  --light-2:rgba(242,246,240,.66);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --sh-1:0 1px 2px rgba(15,30,28,.06), 0 8px 24px rgba(15,30,28,.06);
  --sh-2:0 2px 6px rgba(15,30,28,.08), 0 18px 40px rgba(15,30,28,.10);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-head{position:sticky;top:12px;z-index:80;padding:12px 0 0}
.nav-shell{
  display:flex;align-items:center;gap:14px;
  min-height:68px;padding:10px 14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:4px 6px;border-radius:var(--r-md);transition:background .18s ease}
.brand:hover{background:var(--card-2)}
.brand-mark{position:relative;display:inline-block;width:28px;height:28px;flex:0 0 auto}
.brand-mark b{position:absolute;left:0;top:0;width:16px;height:16px;border-radius:6px;background:var(--ink)}
.brand-mark i{position:absolute;right:0;bottom:0;width:12px;height:12px;border-radius:999px;background:var(--lime);border:2px solid var(--card)}
.brand-text{display:inline-flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:16px;color:var(--text)}
.brand-text em{font-style:normal;font-size:11px;font-weight:600;color:var(--text-3);letter-spacing:.4px;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 13px;border-radius:var(--r-md);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.nav-item svg{flex:0 0 auto;opacity:.75}
.nav-item:hover{background:var(--card-2);border-color:var(--line);color:var(--text)}
.nav-item.active{color:var(--text);background:var(--card-2);border-color:var(--line);font-weight:600}
.nav-dot{display:none;width:8px;height:8px;border-radius:999px;background:var(--lime);flex:0 0 auto}
.nav-item.active .nav-dot{display:inline-block}
.nav-cta{flex:0 0 auto;height:44px;padding:0 20px;border-radius:999px;background:var(--ink);color:var(--lime);font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:8px;transition:all .18s ease}
.nav-cta:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:var(--sh-1)}
.nav-cta:active{transform:scale(.99)}
.nav-cta .cta-short{display:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--card-2);color:var(--ink);
  flex:0 0 auto;
}

/* ---------- 按钮体系 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;transition:all .18s ease;text-align:center}
.btn-primary{background:var(--lime);color:var(--ink);border-radius:999px;height:48px;padding:0 26px}
.btn-primary:hover{background:var(--lime-d);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary:active{transform:scale(.99)}
.btn-outline{border:1.5px solid var(--ink);border-radius:12px;height:44px;padding:0 20px;color:var(--ink);background:transparent;font-weight:500}
.btn-outline:hover{background:var(--card-2);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-outline:active{transform:scale(.99)}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--ink);padding:8px 2px}
.btn-ghost svg{transition:transform .18s ease}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
.badge-lime{background:rgba(196,240,75,.18);color:var(--ink)}
.badge-soft{background:var(--card-2);color:var(--text-2);border:1px solid var(--line)}

/* ---------- 文章头部 ---------- */
.article-head{padding-top:44px;scroll-margin-top:110px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumb a{transition:color .18s ease}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .now{color:var(--text)}
.head-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.article-head h1{
  font-size:clamp(26px,4vw,42px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:0;
  max-width:900px;
  color:var(--text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums}
.meta-row .dot{width:4px;height:4px;border-radius:999px;background:var(--text-3);display:inline-block;opacity:.7}
.head-line{border:0;border-top:1px solid var(--line);margin:26px 0 0}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;padding:40px 0 0;align-items:start}

/* ---------- 正文排版 ---------- */
.article-content{font-size:17px;line-height:1.9;color:var(--text);min-width:0;overflow-wrap:break-word}
.article-content>*+*{margin-top:18px}
.article-content h2{
  position:relative;
  font-size:28px;line-height:1.35;font-weight:700;color:var(--text);
  margin:40px 0 0;padding-left:16px;
}
.article-content h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--lime)}
.article-content h3{font-size:21px;line-height:1.45;font-weight:700;margin:30px 0 0;color:var(--text)}
.article-content h4{font-size:18px;line-height:1.5;font-weight:600;margin:24px 0 0}
.article-content p{color:var(--text);line-height:1.9}
.article-content strong{font-weight:700}
.article-content a{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:rgba(15,30,28,.35);transition:color .18s ease,text-decoration-color .18s ease}
.article-content a:hover{color:var(--ink-3);text-decoration-color:var(--lime-d);text-decoration-thickness:2px}
.article-content ul,.article-content ol{margin-top:14px}
.article-content ul>li{position:relative;padding-left:22px;margin-top:10px}
.article-content ul>li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--lime)}
.article-content ol{list-style:none;counter-reset:item}
.article-content ol>li{position:relative;padding-left:30px;margin-top:10px;counter-increment:item}
.article-content ol>li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:.1em;
  font-size:13px;font-weight:700;color:var(--ink);
  background:rgba(196,240,75,.28);border-radius:6px;
  width:22px;height:22px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.article-content li>ul,.article-content li>ol{margin-top:8px}
.article-content blockquote{
  background:var(--card-2);
  border-left:4px solid var(--lime);
  border-radius:0 12px 12px 0;
  padding:20px 22px;
  color:var(--text-2);
  font-size:16px;line-height:1.8;
}
.article-content blockquote p{color:var(--text-2)}
.article-content img{border-radius:14px;width:100%;margin:26px 0;object-fit:cover}
.article-content figure{margin:26px 0}
.article-content figure img{margin:0}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-content thead{background:var(--card-2)}
.article-content th{text-align:left;padding:12px 14px;font-weight:600;color:var(--text);border-bottom:1px solid var(--line)}
.article-content td{padding:12px 14px;border-top:1px solid var(--line);color:var(--text-2);vertical-align:top}
.article-content tbody tr:first-child td{border-top:0}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
  background:var(--card-2);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
}
.article-content pre{
  background:var(--ink);
  color:var(--light);
  padding:18px 20px;
  border-radius:12px;
  overflow-x:auto;
  font-size:14px;line-height:1.7;
}
.article-content pre code{background:none;border:0;color:inherit;padding:0;font-size:14px}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 空态 */
.empty-state{
  border:1.5px dashed var(--line);
  border-radius:var(--r-lg);
  background:var(--card-2);
  padding:48px 28px;
  text-align:center;
}
.empty-state h2{font-size:22px;font-weight:700;padding-left:0;margin:0}
.empty-state h2::before{display:none}
.empty-state p{font-size:15px;color:var(--text-2);margin:12px auto 22px;max-width:420px;line-height:1.8}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;min-width:0}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-1);padding:22px}
.side-card.soft{background:var(--card-2);box-shadow:none}
.side-title{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:14px}
.side-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--lime)}
.side-list{display:flex;flex-direction:column}
.side-list a{display:block;padding:13px 0;border-top:1px solid var(--line);transition:background .18s ease}
.side-list a:first-child{border-top:0;padding-top:0}
.side-list a:hover .s-name{color:var(--ink);text-decoration-color:var(--lime-d)}
.s-name{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--text);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;transition:text-decoration-color .18s ease}
.s-desc{display:block;font-size:13px;color:var(--text-3);margin-top:4px}
.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.side-note{font-size:13px;color:var(--text-3);line-height:1.7;margin-top:12px}
.side-figure{border-radius:12px;overflow:hidden;margin-bottom:16px;aspect-ratio:16/10;background:var(--card-2)}
.side-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.side-card.soft:hover .side-figure img{transform:scale(1.03)}

/* ---------- 文末区 ---------- */
.article-foot{padding:44px 0 0}
.foot-line{border:0;border-top:1px solid var(--line);margin:0 0 24px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;font-size:13px;background:var(--card-2);border:1px solid var(--line);color:var(--text-2);transition:all .18s ease}
.tag:hover{border-color:rgba(15,30,28,.2);color:var(--text);background:var(--card)}
.foot-back{margin-top:22px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.pager-card{
  display:flex;gap:16px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18)}
.pager-thumb{width:84px;height:64px;border-radius:12px;overflow:hidden;flex:0 0 auto;background:var(--card-2)}
.pager-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.pager-card:hover .pager-thumb img{transform:scale(1.04)}
.pager-kicker{font-size:12px;color:var(--text-3);display:block;margin-bottom:2px}
.pager-name{font-size:15px;font-weight:600;line-height:1.5;color:var(--text)}

/* ---------- 结尾 CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--light);
  border-radius:24px;
  padding:56px;
  margin:80px 0 96px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-block::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:32px 32px;opacity:.7;pointer-events:none;
}
.cta-block .cta-txt{position:relative;z-index:1;max-width:640px}
.cta-block h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.35;color:var(--light)}
.cta-block p{margin-top:12px;font-size:15px;color:var(--light-2);line-height:1.8}
.cta-block .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
footer.site-foot{background:var(--ink);color:var(--light);border-top:1px solid rgba(255,255,255,.08);margin-top:0}
.foot-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,3fr) minmax(0,3fr) minmax(0,3fr) minmax(0,4fr);gap:32px;padding:64px 0 40px}
.foot-brand .brand-text{color:var(--light)}
.foot-brand .brand-text em{color:var(--light-2)}
.foot-brand .brand-mark b{background:var(--lime)}
.foot-brand .brand-mark i{background:var(--light);border-color:var(--ink)}
.foot-desc{font-size:13px;line-height:1.9;color:var(--light-2);margin-top:16px;max-width:280px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:var(--ink-2);color:var(--light-2);transition:all .18s ease}
.social-row a:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px)}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.4px;color:rgba(242,246,240,.55);margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13px;color:var(--light-2);transition:color .18s ease}
.foot-col a:hover{color:var(--lime)}
.foot-contact{background:var(--ink-2);border-radius:14px;padding:20px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.foot-contact h4{font-size:13px;font-weight:700;letter-spacing:.4px;color:rgba(242,246,240,.55);margin-bottom:14px}
.foot-contact p{font-size:13px;line-height:1.9;color:var(--light-2)}
.foot-contact p+p{margin-top:8px}
.foot-contact strong{color:var(--light);font-weight:600}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(242,246,240,.5)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:60;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--lime);color:var(--ink);
  border-radius:999px;padding:14px 22px;
  font-weight:700;font-size:14px;
  box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .18s ease;
}
.float-cta.show{opacity:1;pointer-events:auto}
.float-cta:hover{background:var(--lime-d);transform:translateY(-1px)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:32px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
  .foot-contact{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:6px;
    background:var(--card-2);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:12px;
    box-shadow:var(--sh-2);
  }
  .nav-shell.open .nav-links{display:flex}
  .nav-item{padding:13px 14px;font-size:15px}
  .nav-cta{display:none}
  .nav-links::after{content:"";display:block;height:0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:32px}
  .sidebar{position:static}
  .cta-block{padding:36px;margin:64px 0 80px}
  .pager{grid-template-columns:1fr}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .site-head{top:8px;padding-top:8px}
  .nav-shell{min-height:62px;padding:8px 10px;border-radius:16px}
  .brand-text{font-size:15px}
  .brand-text em{display:none}
  .article-head{padding-top:28px}
  .article-content{font-size:16px;line-height:1.85}
  .article-content h2{font-size:22px;margin-top:32px}
  .article-content h3{font-size:19px}
  .article-content blockquote{padding:16px 18px;font-size:15px}
  .article-content table{font-size:14px}
  .side-card{padding:18px}
  .empty-state{padding:36px 20px}
  .cta-block{padding:26px;border-radius:20px;margin:52px 0 88px}
  .foot-grid{grid-template-columns:1fr;padding:48px 0 32px;gap:28px}
  .foot-bottom{flex-direction:column;font-size:12px;padding-bottom:88px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    justify-content:center;height:56px;padding:0 18px;font-size:15px;
    box-shadow:0 -4px 18px rgba(15,30,28,.16);
  }
  .float-cta.show{transform:none}
  body{padding-bottom:0}
}

/* roulang page: category1 */
:root{
  --ink:#0F1E1C;
  --ink-2:#17302B;
  --ink-3:#1F3D36;
  --lime:#C4F04B;
  --lime-d:#A9D62F;
  --coral:#FF7A45;
  --paper:#F5F3EC;
  --card:#FFFFFF;
  --card-2:#FBF9F3;
  --line:#E3E0D6;
  --text:#16211E;
  --text-2:#5A6560;
  --text-3:#8B948F;
  --sh-1:0 1px 2px rgba(15,30,28,.06),0 8px 24px rgba(15,30,28,.06);
  --sh-2:0 2px 6px rgba(15,30,28,.08),0 18px 40px rgba(15,30,28,.10);
  --r-card:18px;
  --r-sm:12px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;}
button{font-family:inherit;}
:where(a,button,input,textarea):focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}
.on-dark :where(a,button):focus-visible{outline-color:var(--lime);}

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

/* ---------- 导航 ---------- */
.nav-shell{position:sticky;top:12px;z-index:80;padding-top:12px;}
.nav-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  height:68px;
  padding:0 16px 0 18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:26px;height:26px;border-radius:9px;background:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;position:relative;
}
.brand-mark i{width:8px;height:8px;border-radius:999px;background:var(--lime);display:block;}
.brand-text{font-size:17px;font-weight:800;color:var(--text);letter-spacing:0;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 14px;border-radius:12px;
  font-size:14px;color:var(--text-2);text-decoration:none;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.nav-item:hover{background:var(--card-2);border-color:var(--line);color:var(--text);}
.nav-item.active{background:var(--card-2);border-color:var(--line);color:var(--text);font-weight:600;}
.nav-dot{width:8px;height:8px;border-radius:999px;background:transparent;flex-shrink:0;transition:all .18s ease;}
.nav-item.active .nav-dot{background:var(--lime);}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--card-2);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  transition:all .18s ease;
}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:var(--lime-d);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:scale(.99);box-shadow:none;}
.btn-dark{background:var(--ink);color:var(--lime);}
.btn-dark:hover{background:var(--ink-3);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-dark:active{transform:scale(.99);}
.btn-outline{
  background:transparent;border:1.5px solid var(--ink);color:var(--ink);
  border-radius:12px;min-height:44px;padding:0 22px;font-weight:500;
}
.btn-outline:hover{background:var(--ink);color:var(--card);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);padding:0 4px;min-height:44px;border-radius:12px;}
.btn-ghost .arw{transition:transform .18s ease;}
.btn-ghost:hover .arw{transform:translateX(3px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ---------- 通用小件 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;background:rgba(196,240,75,.16);color:var(--ink);
}
.badge-soft{background:var(--card-2);color:var(--text-2);border:1px solid var(--line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:var(--card-2);
  border:1px solid var(--line);font-size:13px;color:var(--text-2);
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:999px;background:var(--lime);}
.hl{background:linear-gradient(transparent 62%,var(--lime) 62%);padding:0 2px;}
h1,h2,h3{letter-spacing:0;margin:0;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
h2.sec-title{
  font-size:30px;line-height:1.3;font-weight:700;position:relative;padding-left:18px;
}
h2.sec-title::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--lime);
}
.sec-sub{color:var(--text-2);font-size:15px;margin:10px 0 0;max-width:640px;}

/* ---------- Hero ---------- */
.page-hero{padding:26px 0 0;}
.hero-panel{
  display:grid;grid-template-columns:7fr 5fr;
  background:var(--card-2);border:1px solid var(--line);border-radius:24px;
  overflow:hidden;box-shadow:var(--sh-1);
}
.hero-copy{padding:46px 44px;display:flex;flex-direction:column;align-items:flex-start;gap:16px;}
.crumbs{font-size:13px;color:var(--text-3);}
.crumbs a{color:var(--text-3);text-decoration:none;}
.crumbs a:hover{color:var(--text);}
.crumbs .sep{margin:0 6px;color:var(--line);}
.crumbs .now{color:var(--text);}
.hero-copy h1{font-size:44px;line-height:1.22;font-weight:800;}
.hero-copy p.lead{font-size:16px;color:var(--text-2);max-width:520px;margin:0;line-height:1.8;}
.hero-media{position:relative;min-height:320px;background:var(--ink);}
.hero-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(251,249,243,.55),rgba(15,30,28,.10));
}
.hero-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:14px;padding:12px 16px;
  display:flex;align-items:center;gap:10px;box-shadow:var(--sh-1);
}
.status-dot{width:10px;height:10px;border-radius:999px;background:var(--lime);box-shadow:0 0 0 4px rgba(196,240,75,.28);}
.hero-float b{font-size:13px;font-weight:600;}
.hero-float small{display:block;font-size:12px;color:var(--text-3);line-height:1.4;}

/* ---------- 流程 + 自查 ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.flow-card,.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.flow-card h2{font-size:24px;font-weight:700;margin:14px 0 6px;}
.flow-card > p{color:var(--text-2);font-size:15px;margin:0 0 26px;}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;}
.step{display:flex;gap:18px;padding:0 0 28px;position:relative;}
.step:last-child{padding-bottom:0;}
.step:not(:last-child)::before{
  content:"";position:absolute;left:19px;top:44px;bottom:6px;width:0;
  border-left:1px dashed var(--line);
}
.step-no{
  flex-shrink:0;width:40px;height:40px;border-radius:12px;background:var(--ink);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  position:relative;z-index:1;
}
.step h3{font-size:18px;font-weight:600;margin:4px 0 6px;line-height:1.45;}
.step p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.75;}

.check-card{background:var(--ink-2);border-color:var(--ink-3);color:#F2F6F0;box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06);}
.check-card h2{font-size:22px;font-weight:700;color:#F2F6F0;}
.check-card > p{font-size:14px;color:rgba(242,246,240,.66);margin:8px 0 20px;}
.check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.check-row{
  display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  cursor:pointer;transition:all .18s ease;
}
.check-row:hover{background:rgba(255,255,255,.08);border-color:rgba(196,240,75,.35);}
.check-row .cdot{width:8px;height:8px;border-radius:999px;background:var(--lime);flex-shrink:0;transition:all .18s ease;}
.check-row .clabel{font-size:14px;color:#F2F6F0;flex:1;}
.check-tag{
  font-size:12px;padding:3px 10px;border-radius:999px;
  background:rgba(242,246,240,.10);color:rgba(242,246,240,.66);white-space:nowrap;
  transition:all .18s ease;
}
.check-row[data-state="done"]{background:rgba(196,240,75,.12);border-color:rgba(196,240,75,.45);}
.check-row[data-state="done"] .check-tag{background:var(--lime);color:var(--ink);font-weight:600;}
.check-explain{font-size:13px;color:rgba(242,246,240,.5);margin-top:18px;line-height:1.7;}

/* ---------- 排查顺序 ---------- */
.trouble-list{display:flex;flex-direction:column;gap:14px;}
.trouble{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh-1);transition:all .2s ease;
}
.trouble:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18);}
.trouble .idx{
  font-size:22px;font-weight:800;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.trouble h3{font-size:18px;font-weight:600;margin:0 0 4px;}
.trouble p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.trouble .tag{font-size:12px;color:var(--text-2);background:var(--card-2);border:1px solid var(--line);border-radius:999px;padding:4px 12px;white-space:nowrap;}

/* ---------- 图文卡 ---------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.duo-card{
  display:grid;grid-template-columns:1fr 200px;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .2s ease;
}
.duo-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18);}
.duo-body{padding:28px 26px;display:flex;flex-direction:column;justify-content:center;gap:12px;}
.duo-body h3{font-size:19px;font-weight:600;line-height:1.45;}
.duo-body p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.75;}
.duo-media{overflow:hidden;background:var(--card-2);position:relative;min-height:180px;}
.duo-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.duo-card:hover .duo-media img{transform:scale(1.03);}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--ink);border-radius:24px;padding:56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none;
}
.cta-block > *{position:relative;z-index:1;}
.cta-block h2{font-size:30px;font-weight:800;color:#F2F6F0;line-height:1.3;}
.cta-block p{margin:10px 0 0;font-size:15px;color:rgba(242,246,240,.66);max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:#F2F6F0;margin-top:96px;
  border-top:1px solid rgba(255,255,255,.08);padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1.6fr 1fr;gap:44px;padding-bottom:48px;}
.brand-light .brand-text{color:#F2F6F0;}
.brand-light .brand-mark{background:var(--ink-3);}
.footer-brand p{font-size:13.5px;color:rgba(242,246,240,.66);line-height:1.85;margin:16px 0 20px;max-width:340px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink-2);border:1px solid rgba(255,255,255,.08);color:rgba(242,246,240,.7);
  transition:all .18s ease;
}
.footer-social a:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.footer-cols h3{
  font-size:13px;font-weight:600;color:rgba(242,246,240,.5);
  letter-spacing:.4px;margin:4px 0 16px;
}
.footer-cols a{
  display:block;font-size:13.5px;color:rgba(242,246,240,.78);text-decoration:none;
  padding:6px 0;transition:color .18s ease;
}
.footer-cols a:hover{color:var(--lime);}
.footer-contact{
  background:var(--ink-2);border:1px solid rgba(255,255,255,.08);
  border-radius:14px;padding:22px;
}
.footer-contact h3{font-size:14px;margin:0 0 14px;color:#F2F6F0;}
.footer-contact p{
  font-size:13px;color:rgba(242,246,240,.66);margin:0 0 10px;line-height:1.7;
  padding-left:14px;position:relative;
}
.footer-contact p::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:999px;background:var(--lime);
}
.footer-contact p:last-child{margin-bottom:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,246,240,.5);
}

/* ---------- 浮动 CTA ---------- */
.fab{
  position:fixed;bottom:24px;right:24px;z-index:60;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--lime);color:var(--ink);font-weight:600;font-size:15px;
  padding:0 24px;height:52px;border-radius:999px;text-decoration:none;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,background .18s ease;
}
.fab.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.fab:hover{background:var(--lime-d);}
.fab-mobile{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{
    display:none;position:absolute;top:76px;left:0;right:0;margin:0;
    background:var(--card-2);border:1px solid var(--line);border-radius:18px;
    padding:14px;flex-direction:column;align-items:stretch;gap:6px;
    box-shadow:var(--sh-2);
  }
  .nav-card.open .nav-links{display:flex;}
  .nav-item{width:100%;padding:14px;font-size:15px;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn{display:none;}
  .hero-panel{grid-template-columns:1fr;}
  .hero-media{min-height:240px;order:-1;}
  .hero-copy{padding:32px 24px 36px;}
  .hero-copy h1{font-size:34px;}
  .split{grid-template-columns:1fr;}
  .duo{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-cols{grid-template-columns:repeat(3,1fr);}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .hero-copy h1{font-size:30px;}
  .hero-copy p.lead{font-size:15px;}
  h2.sec-title{font-size:23px;}
  .sec-head{margin-bottom:24px;}
  .section{padding:56px 0;}
  .cta-block{padding:36px 24px;flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-block h2{font-size:24px;}
  .trouble{grid-template-columns:44px 1fr;gap:14px;padding:20px;}
  .trouble .tag{grid-column:2;justify-self:start;margin-top:6px;}
  .duo-card{grid-template-columns:1fr;}
  .duo-media{order:-1;min-height:160px;}
  .footer-cols{grid-template-columns:repeat(2,1fr);}
  .footer-bottom{flex-direction:column;gap:6px;}
  .fab{display:none;}
  .fab-mobile{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:56px;background:var(--ink);border-top:1px solid rgba(255,255,255,.1);
    align-items:center;gap:12px;padding:0 16px;
  }
  .fab-mobile a.fm-main{
    flex:1;height:40px;border-radius:999px;background:var(--lime);color:var(--ink);
    display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;text-decoration:none;
  }
  .fab-mobile a.fm-sub{
    font-size:13px;color:rgba(242,246,240,.7);text-decoration:none;white-space:nowrap;
  }
  body{padding-bottom:72px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .hero-copy{padding:26px 18px 30px;}
  .flow-card,.check-card{padding:24px 20px;}
  .trouble{grid-template-columns:1fr;gap:8px;}
  .trouble .idx{font-size:18px;}
  .trouble .tag{grid-column:1;}
  .footer-cols{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
    --ink:#0F1E1C;
    --ink-2:#17302B;
    --ink-3:#1F3D36;
    --lime:#C4F04B;
    --lime-d:#A9D62F;
    --coral:#FF7A45;
    --paper:#F5F3EC;
    --card:#FFFFFF;
    --card-2:#FBF9F3;
    --line:#E3E0D6;
    --text:#16211E;
    --text-2:#5A6560;
    --text-3:#8B948F;
    --r-lg:18px;
    --r-md:12px;
    --sh-1:0 1px 2px rgba(15,30,28,.06),0 8px 24px rgba(15,30,28,.06);
    --sh-2:0 2px 6px rgba(15,30,28,.08),0 18px 40px rgba(15,30,28,.10);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
    background:var(--paper);
    color:var(--text);
    font-size:16px;
    line-height:1.8;
    letter-spacing:0;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:var(--ink);text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;cursor:pointer;border:none;background:none;}
  input,textarea,select{font-family:inherit;font-size:15px;}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
  .container{max-width:1200px;margin:0 auto;padding:0 24px;}
  .sec{padding:96px 0;}
  .sec-tight{padding:56px 0;}
  .muted{color:var(--text-2);}
  .small{font-size:14px;line-height:1.7;color:var(--text-2);}
  .tiny{font-size:13px;color:var(--text-3);}
  .num{font-variant-numeric:tabular-nums;}

  /* ---------- header / nav ---------- */
  header.site-head{position:sticky;top:12px;z-index:50;padding:0 24px;}
  .nav-card{
    max-width:1200px;margin:0 auto;position:relative;
    min-height:68px;display:flex;align-items:center;gap:18px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-1);padding:10px 16px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{position:relative;width:26px;height:26px;flex:0 0 auto;}
  .brand-mark::before{
    content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%;background:var(--lime);
  }
  .brand-mark::after{
    content:"";position:absolute;right:0;bottom:0;width:15px;height:15px;border-radius:5px;background:var(--ink);
  }
  .brand-text{font-weight:800;font-size:17px;color:var(--ink);white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;padding:10px 14px;border-radius:var(--r-md);
    font-size:14px;color:var(--text-2);border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
  }
  .nav-item:hover{background:var(--card-2);border-color:var(--line);color:var(--ink);}
  .nav-item.active{background:var(--card-2);border-color:var(--line);color:var(--ink);font-weight:600;}
  .nav-dot{width:8px;height:8px;border-radius:50%;background:transparent;flex:0 0 auto;}
  .nav-item.active .nav-dot{background:var(--lime);}
  .nav-cta{
    display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;
    background:var(--ink);color:var(--lime);font-size:14px;font-weight:600;flex:0 0 auto;
    transition:all .18s ease;
  }
  .nav-cta:hover{transform:translateY(-1px);box-shadow:var(--sh-1);color:var(--lime);}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-md);
    border:1px solid var(--line);color:var(--ink);margin-left:auto;
  }
  .nav-toggle svg{width:20px;height:20px;}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    transition:all .18s ease;font-weight:600;text-align:center;
  }
  .btn-primary{
    min-height:48px;padding:0 26px;border-radius:999px;background:var(--lime);color:var(--ink);
  }
  .btn-primary:hover{background:var(--lime-d);transform:translateY(-1px);box-shadow:var(--sh-1);}
  .btn-primary:active{transform:scale(.99);}
  .btn-outline{
    min-height:44px;padding:0 20px;border-radius:var(--r-md);border:1.5px solid var(--ink);
    color:var(--ink);background:transparent;font-weight:500;font-size:14px;
  }
  .btn-outline:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
  .btn-outline:active{transform:scale(.99);}
  .btn-ghost{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
    padding:8px 2px;border-bottom:1px solid transparent;transition:all .18s ease;
  }
  .btn-ghost svg{transition:transform .18s ease;}
  .btn-ghost:hover{color:var(--ink);border-bottom-color:var(--lime-d);}
  .btn-ghost:hover svg{transform:translateX(3px);}

  /* ---------- badges ---------- */
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;
    white-space:nowrap;
  }
  .badge-lime{background:rgba(196,240,75,.16);color:var(--ink);font-weight:600;}
  .badge-plain{background:var(--card-2);color:var(--text-2);border:1px solid var(--line);}
  .badge-coral{background:rgba(255,122,69,.12);color:#B4471C;font-weight:600;}

  /* ---------- mini hero ---------- */
  .mini-hero{
    background:var(--card-2);border:1px solid var(--line);border-radius:24px;
    padding:32px;display:grid;grid-template-columns:1.35fr 1fr;gap:32px;align-items:center;
    position:relative;overflow:hidden;
  }
  .mini-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
    background-size:44px 44px;opacity:.5;
    -webkit-mask-image:radial-gradient(circle at 88% 12%,#000,transparent 62%);
    mask-image:radial-gradient(circle at 88% 12%,#000,transparent 62%);
  }
  .mini-hero > *{position:relative;z-index:1;}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px;flex-wrap:wrap;}
  .crumb a{color:var(--text-3);}
  .crumb a:hover{color:var(--ink);}
  .crumb .now{color:var(--text);}
  .mini-hero h1{
    font-size:40px;line-height:1.24;font-weight:800;color:var(--ink);max-width:14em;
  }
  .mini-hero h1 .hl{background:linear-gradient(transparent 64%,var(--lime) 64%);padding:0 2px;}
  .hero-line{margin-top:16px;font-size:15px;color:var(--text-2);max-width:34em;}
  .hero-actions{margin-top:24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
  .hero-figure{border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);position:relative;}
  .hero-figure img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;}
  .hero-figure .figure-tag{
    position:absolute;left:14px;top:14px;background:rgba(15,30,28,.82);color:#F2F6F0;
    border-radius:999px;padding:5px 12px;font-size:12px;display:inline-flex;align-items:center;gap:6px;
  }
  .dot-live{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;}

  /* ---------- section heads ---------- */
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
  .sec-title{display:flex;align-items:flex-start;gap:12px;}
  .sec-mark{
    display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:5px;
    background:var(--lime);color:var(--ink);font-size:11px;font-weight:800;margin-top:8px;flex:0 0 auto;
  }
  .sec-title h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--ink);}
  .sec-sub{margin-top:8px;font-size:15px;color:var(--text-2);max-width:46em;}

  /* ---------- legend ---------- */
  .legend{
    display:flex;align-items:center;gap:22px;flex-wrap:wrap;padding:14px 20px;border-radius:var(--r-md);
    background:var(--card);border:1px solid var(--line);margin-bottom:24px;
  }
  .legend span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
  .tick{
    width:18px;height:18px;border-radius:50%;background:rgba(196,240,75,.45);display:inline-flex;
    align-items:center;justify-content:center;flex:0 0 auto;
  }
  .tick svg{width:11px;height:11px;}
  .cross{
    width:18px;height:18px;border-radius:50%;background:var(--card-2);border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;color:var(--text-3);flex:0 0 auto;
  }
  .cross svg{width:10px;height:10px;}

  /* ---------- compare rows ---------- */
  .cmp-list{display:flex;flex-direction:column;gap:18px;}
  .cmp-row{
    display:grid;grid-template-columns:170px 1fr 250px 132px;gap:26px;align-items:center;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:22px;box-shadow:var(--sh-1);transition:all .2s ease;
  }
  .cmp-row:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18);}
  .cmp-thumb{aspect-ratio:16/9;border-radius:var(--r-md);overflow:hidden;background:var(--card-2);}
  .cmp-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .cmp-row:hover .cmp-thumb img{transform:scale(1.03);}
  .cmp-main h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
  .cmp-main p{font-size:14px;color:var(--text-2);line-height:1.7;margin-top:8px;}
  .cmp-meta{margin-top:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);}
  .cmp-meta .sep{width:1px;height:11px;background:var(--line);display:inline-block;}
  .cmp-feats{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px;}
  .cmp-feats li{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-2);line-height:1.5;}
  .cmp-feats li.off{color:var(--text-3);}
  .cmp-action{display:flex;justify-content:flex-end;}

  /* ---------- conclusion note ---------- */
  .note{
    margin-top:28px;background:var(--card-2);border:1px solid var(--line);border-left:4px solid var(--coral);
    border-radius:var(--r-md);padding:20px 24px;display:flex;gap:16px;align-items:flex-start;
  }
  .note .note-ico{
    width:28px;height:28px;border-radius:8px;background:rgba(255,122,69,.14);color:#B4471C;
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;margin-top:2px;
  }
  .note strong{display:block;font-size:15px;color:var(--ink);margin-bottom:4px;}
  .note p{font-size:14px;color:var(--text-2);line-height:1.75;}

  /* ---------- split block ---------- */
  .split{display:grid;grid-template-columns:1fr 1.15fr;gap:32px;align-items:start;}
  .panel{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-1);padding:28px;
  }
  .panel-dark{
    background:var(--ink);border:1px solid var(--ink);border-radius:var(--r-lg);padding:32px;
    color:#F2F6F0;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  }
  .panel-dark h2{color:#F2F6F0;}
  .panel-dark .small{color:rgba(242,246,240,.72);}
  .step-list{display:flex;flex-direction:column;}
  .step{
    display:grid;grid-template-columns:34px 1fr;gap:14px;padding:18px 0;position:relative;
  }
  .step + .step{border-top:1px dashed var(--line);}
  .step-no{
    width:34px;height:34px;border-radius:9px;background:var(--card-2);border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--ink);
  }
  .step h3{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;}
  .step p{font-size:14px;color:var(--text-2);line-height:1.7;margin-top:4px;}
  .figure-card{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--card);}
  .figure-card img{width:100%;aspect-ratio:16/11;object-fit:cover;}
  .figure-card figcaption{padding:16px 20px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);}

  /* ---------- recommend cards ---------- */
  .rec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
  .rec-card{
    display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:center;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:20px;box-shadow:var(--sh-1);transition:all .2s ease;
  }
  .rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18);}
  .rec-card .thumb{aspect-ratio:4/3;border-radius:var(--r-md);overflow:hidden;background:var(--card-2);}
  .rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .rec-card:hover .thumb img{transform:scale(1.03);}
  .rec-card h3{font-size:17px;font-weight:600;color:var(--ink);line-height:1.45;}
  .rec-card p{font-size:13.5px;color:var(--text-2);line-height:1.7;margin-top:6px;}

  /* ---------- faq ---------- */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .faq-item[open]{border-color:rgba(15,30,28,.28);box-shadow:var(--sh-1);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-ico{position:relative;width:18px;height:18px;flex:0 0 auto;}
  .faq-ico::before,.faq-ico::after{
    content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .2s ease;
  }
  .faq-ico::before{left:0;top:8px;width:18px;height:2px;}
  .faq-ico::after{left:8px;top:0;width:2px;height:18px;}
  .faq-item[open] .faq-ico::after{transform:rotate(90deg);}
  .faq-body{padding:0 20px 16px;font-size:14.5px;color:var(--text-2);line-height:1.8;}

  /* ---------- cta band ---------- */
  .cta-band{
    background:var(--ink);border-radius:24px;padding:56px;color:#F2F6F0;position:relative;overflow:hidden;
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:40px 40px;
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-band h2{font-size:30px;font-weight:800;line-height:1.3;color:#F2F6F0;}
  .cta-band p{margin-top:10px;font-size:15px;color:rgba(242,246,240,.72);max-width:40em;}

  /* ---------- footer ---------- */
  footer.site-foot{background:var(--ink);color:#F2F6F0;margin-top:96px;border-top:1px solid rgba(255,255,255,.08);}
  .foot-inner{max-width:1200px;margin:0 auto;padding:64px 24px 28px;}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .foot-brand .brand-text{color:#F2F6F0;}
  .foot-brand .brand-mark::after{background:var(--lime);}
  .foot-desc{font-size:13.5px;line-height:1.8;color:rgba(242,246,240,.66);max-width:30em;}
  .socials{display:flex;gap:10px;margin-top:18px;}
  .socials a{
    width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.12);
    display:inline-flex;align-items:center;justify-content:center;color:rgba(242,246,240,.8);
    transition:all .18s ease;
  }
  .socials a:hover{background:rgba(196,240,75,.14);color:var(--lime);border-color:rgba(196,240,75,.4);}
  .foot-col h4{font-size:13px;letter-spacing:.4px;color:rgba(242,246,240,.55);font-weight:600;margin-bottom:14px;}
  .foot-col li{margin-bottom:9px;}
  .foot-col a{font-size:13px;color:rgba(242,246,240,.78);transition:color .18s ease;}
  .foot-col a:hover{color:var(--lime);}
  .foot-contact{background:var(--ink-2);border-radius:14px;padding:20px;}
  .foot-contact h4{font-size:13px;color:rgba(242,246,240,.6);margin-bottom:12px;letter-spacing:.4px;}
  .foot-contact p{font-size:13px;color:rgba(242,246,240,.8);line-height:1.8;}
  .foot-contact .kv{display:flex;gap:8px;}
  .foot-contact .kv span:first-child{color:rgba(242,246,240,.5);flex:0 0 auto;}
  .foot-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(242,246,240,.5);
  }

  /* ---------- floating cta ---------- */
  .float-cta{
    position:fixed;right:24px;bottom:24px;z-index:60;
    display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 24px;border-radius:999px;
    background:var(--lime);color:var(--ink);font-weight:700;font-size:15px;
    box-shadow:var(--sh-2);opacity:0;transform:translateY(10px);pointer-events:none;
    transition:opacity .2s ease,transform .2s ease;
  }
  .float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
  .float-cta:hover{background:var(--lime-d);transform:translateY(-1px);}
  .float-bar{display:none;}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    header.site-head{padding:0 18px;}
    .nav-toggle{display:inline-flex;}
    .nav-card{flex-wrap:wrap;gap:10px;padding:10px 12px;}
    .nav-links{
      position:absolute;left:0;right:0;top:calc(100% + 10px);display:none;flex-direction:column;
      align-items:stretch;gap:6px;background:var(--card-2);border:1px solid var(--line);
      border-radius:16px;padding:12px;box-shadow:var(--sh-2);
    }
    .nav-open .nav-links{display:flex;}
    .nav-cta{display:none;}
    .nav-open .nav-cta{display:flex;width:100%;justify-content:center;margin-top:4px;order:9;flex-basis:100%;}
    .nav-item{padding:12px 14px;font-size:15px;}
    .sec{padding:72px 0;}
    .mini-hero{grid-template-columns:1fr;gap:24px;padding:26px;}
    .mini-hero h1{font-size:34px;max-width:none;}
    .hero-figure img{aspect-ratio:16/9;}
    .cmp-row{grid-template-columns:150px 1fr;gap:18px;}
    .cmp-feats{grid-column:1 / -1;grid-template-columns:1fr 1fr;}
    .cmp-action{grid-column:1 / -1;justify-content:flex-start;}
    .split{grid-template-columns:1fr;}
    .rec-grid{grid-template-columns:1fr;}
    .faq-grid{grid-template-columns:1fr;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .cta-band{padding:36px;}
    .cta-band h2{font-size:24px;}
  }
  @media (max-width:639px){
    body{padding-bottom:76px;}
    header.site-head{padding:0 14px;top:8px;}
    .container{padding:0 18px;}
    .sec{padding:56px 0;}
    .mini-hero{padding:22px;border-radius:20px;}
    .mini-hero h1{font-size:30px;}
    .hero-line{font-size:14px;}
    .sec-title h2{font-size:22px;}
    .camp-row{}
    .cmp-row{grid-template-columns:1fr;padding:18px;}
    .cmp-thumb{aspect-ratio:16/9;}
    .cmp-feats{grid-template-columns:1fr;}
    .cmp-action .btn-outline{width:100%;}
    .rec-card{grid-template-columns:1fr;gap:14px;}
    .rec-card .thumb{aspect-ratio:16/9;}
    .panel,.panel-dark{padding:20px;}
    .foot-grid{grid-template-columns:1fr;gap:28px;}
    .cta-band{padding:26px;border-radius:20px;}
    .float-cta{display:none;}
    .float-bar{
      display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;height:56px;
      background:var(--ink);align-items:center;gap:12px;padding:0 14px;
      box-shadow:0 -6px 20px rgba(15,30,28,.18);
    }
    .float-bar .fb-main{
      flex:1 1 auto;display:inline-flex;align-items:center;justify-content:center;height:44px;
      background:var(--lime);color:var(--ink);border-radius:999px;font-weight:700;font-size:14px;
    }
    .float-bar .fb-sub{
      flex:0 0 auto;display:inline-flex;align-items:center;height:44px;padding:0 12px;
      color:rgba(242,246,240,.82);font-size:13px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
    }
  }

/* roulang page: category3 */
:root{
    --ink:#0F1E1C;
    --ink-2:#17302B;
    --ink-3:#1F3D36;
    --lime:#C4F04B;
    --lime-d:#A9D62F;
    --coral:#FF7A45;
    --paper:#F5F3EC;
    --card:#FFFFFF;
    --card-2:#FBF9F3;
    --line:#E3E0D6;
    --text:#16211E;
    --text-2:#5A6560;
    --text-3:#8B948F;
    --light-text:#F2F6F0;
    --light-text-2:rgba(242,246,240,.66);
    --sh-1:0 1px 2px rgba(15,30,28,.06),0 8px 24px rgba(15,30,28,.06);
    --sh-2:0 2px 6px rgba(15,30,28,.08),0 18px 40px rgba(15,30,28,.10);
    --r-card:18px;
    --r-md:12px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
    background:var(--paper);
    color:var(--text);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{list-style:none;padding:0;}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:12px;z-index:50;margin-top:12px;}
  .nav-card{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    height:68px;padding:0 12px 0 18px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);
  }
  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .logo-mark{position:relative;width:28px;height:28px;flex:none;}
  .logo-mark::after{
    content:"";position:absolute;inset:0;border-radius:9px;background:var(--ink);
  }
  .logo-mark::before{
    content:"";position:absolute;left:6px;top:6px;width:8px;height:8px;border-radius:50%;
    background:var(--lime);z-index:2;
  }
  .brand-text{font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;}
  .brand-short{display:none;}
  .nav-links{display:flex;align-items:center;gap:4px;}
  .nav-item{
    display:flex;align-items:center;gap:8px;
    padding:10px 14px;border-radius:var(--r-md);
    font-size:14px;color:var(--text-2);border:1px solid transparent;
    transition:all .18s ease;white-space:nowrap;
  }
  .nav-item:hover{background:var(--card-2);border-color:var(--line);color:var(--text);}
  .nav-item.active{background:var(--card-2);border-color:var(--line);color:var(--ink);font-weight:600;}
  .nav-dot{width:8px;height:8px;border-radius:50%;background:transparent;flex:none;transition:background .18s ease;}
  .nav-item.active .nav-dot{background:var(--lime);}
  .nav-cta{
    display:inline-flex;align-items:center;justify-content:center;
    height:44px;padding:0 22px;border-radius:999px;
    background:var(--ink);color:var(--lime);font-size:14px;font-weight:600;
    transition:all .18s ease;white-space:nowrap;
  }
  .nav-cta:hover{transform:translateY(-1px);box-shadow:var(--sh-1);background:var(--ink-2);}
  .nav-cta:active{transform:scale(.99);}
  .nav-cta--panel{display:none;}
  .nav-toggle{
    display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
    background:var(--card-2);cursor:pointer;align-items:center;justify-content:center;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:all .2s ease;}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all .2s ease;
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}
  .nav-open .nav-toggle span{background:transparent;}
  .nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
  .nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

  @media (max-width:1199px){
    .brand-full{display:none;}
    .brand-short{display:inline;}
    .nav-item{padding:10px 12px;font-size:13px;}
  }
  @media (max-width:1023px){
    .nav-toggle{display:flex;}
    .nav-cta--desk{display:none;}
    .nav-links{
      position:absolute;top:calc(100% + 8px);left:0;right:0;
      display:none;flex-direction:column;align-items:stretch;gap:6px;
      background:var(--card-2);border:1px solid var(--line);border-radius:var(--r-card);
      box-shadow:var(--sh-2);padding:12px;
    }
    .nav-open .nav-links{display:flex;}
    .nav-item{padding:14px;font-size:15px;background:var(--card);border-color:var(--line);}
    .nav-cta--panel{display:flex;width:100%;margin-top:6px;height:48px;}
  }

  /* ---------- 通用按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 26px;border-radius:999px;
    font-size:15px;font-weight:600;border:none;cursor:pointer;
    transition:all .18s ease;
  }
  .btn-primary{background:var(--lime);color:var(--ink);}
  .btn-primary:hover{background:var(--lime-d);transform:translateY(-1px);box-shadow:var(--sh-1);}
  .btn-primary:active{transform:scale(.99);}
  .btn-dark{background:var(--ink);color:var(--lime);}
  .btn-dark:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:var(--sh-1);}
  .btn-outline{
    height:44px;background:transparent;color:var(--ink);
    border:1.5px solid var(--ink);border-radius:12px;
  }
  .btn-outline:hover{background:rgba(15,30,28,.04);transform:translateY(-1px);}
  .btn-ghost{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
    color:var(--ink);padding:8px 2px;
  }
  .btn-ghost svg{transition:transform .18s ease;}
  .btn-ghost:hover svg{transform:translateX(3px);}

  /* ---------- 迷你 Hero ---------- */
  .page-top{padding:28px 0 0;}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);
    margin-bottom:16px;flex-wrap:wrap;
  }
  .breadcrumb a{color:var(--text-3);}
  .breadcrumb a:hover{color:var(--ink);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .current{color:var(--text);}
  .mini-hero{
    position:relative;overflow:hidden;
    background:var(--card-2);border:1px solid var(--line);border-radius:24px;
    padding:44px;
  }
  .mini-hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(15,30,28,.035) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(15,30,28,.035) 1px,transparent 1px);
    background-size:44px 44px;
  }
  .mini-hero-inner{
    position:relative;display:grid;grid-template-columns:1.25fr .95fr;gap:40px;align-items:center;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--card);border:1px solid var(--line);border-radius:999px;
    padding:6px 14px;font-size:13px;color:var(--text-2);margin-bottom:18px;
  }
  .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:inline-block;}
  h1{
    font-size:clamp(30px,3.6vw,44px);line-height:1.24;font-weight:800;color:var(--ink);
    letter-spacing:0;max-width:16em;
  }
  .hl{background:linear-gradient(transparent 62%,var(--lime) 62%);padding:0 2px;}
  .hero-sub{font-size:16px;line-height:1.8;color:var(--text-2);margin-top:16px;max-width:34em;}
  .hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:26px;}
  .hero-figure{position:relative;}
  .hero-figure img{
    width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;box-shadow:var(--sh-2);
  }
  @media (max-width:900px){
    .mini-hero{padding:28px;}
    .mini-hero-inner{grid-template-columns:1fr;gap:24px;}
    .hero-figure{order:-1;}
    .hero-figure img{aspect-ratio:16/9;}
  }

  /* ---------- 数据条 ---------- */
  .stat-bar{
    display:grid;grid-template-columns:repeat(4,1fr);
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);overflow:hidden;margin-top:24px;
  }
  .stat-cell{padding:24px 26px;border-left:1px solid var(--line);}
  .stat-cell:first-child{border-left:none;}
  .stat-num{
    font-size:clamp(30px,3vw,40px);font-weight:800;line-height:1.1;color:var(--ink);
    font-variant-numeric:tabular-nums;
  }
  .stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--text-2);margin-left:4px;}
  .stat-label{font-size:13px;color:var(--text-3);margin-top:6px;}
  @media (max-width:768px){
    .stat-bar{grid-template-columns:repeat(2,1fr);}
    .stat-cell{border-left:none;border-top:1px solid var(--line);}
    .stat-cell:nth-child(odd){border-right:1px solid var(--line);}
    .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-top:none;}
  }

  /* ---------- 板块基础 ---------- */
  .section{padding:72px 0 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px;}
  h2.sec-title{
    position:relative;font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;color:var(--ink);
    padding-left:18px;
  }
  h2.sec-title::before{
    content:"";position:absolute;left:0;top:4px;width:4px;height:22px;border-radius:2px;background:var(--lime);
  }
  .sec-desc{font-size:14px;color:var(--text-2);margin-top:10px;padding-left:18px;max-width:44em;}

  /* ---------- 警示条 ---------- */
  .alert{
    display:flex;gap:14px;align-items:flex-start;
    background:rgba(255,122,69,.08);border-radius:12px;border-left:4px solid var(--coral);
    padding:16px 20px;font-size:15px;line-height:1.75;color:var(--text);
  }
  .alert svg{flex:none;margin-top:3px;color:var(--coral);}
  .alert strong{font-weight:700;}

  /* ---------- 三张判断卡 ---------- */
  .judge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px;}
  .judge-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px;box-shadow:var(--sh-1);transition:all .18s ease;
  }
  .judge-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,30,28,.18);}
  .num-badge{
    width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--lime);
    display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
    font-variant-numeric:tabular-nums;margin-bottom:16px;
  }
  .judge-card h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);margin-bottom:8px;}
  .judge-card p{font-size:14px;line-height:1.75;color:var(--text-2);}
  @media (max-width:900px){.judge-grid{grid-template-columns:1fr;}}

  /* ---------- 图文块 ---------- */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;}
  .split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--sh-1);}
  .tip-list{margin-top:20px;}
  .tip-list li{
    display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line);
    font-size:15px;line-height:1.75;color:var(--text-2);
  }
  .tip-list li:last-child{border-bottom:none;}
  .tip-list li::before{
    content:"";width:6px;height:6px;border-radius:1px;background:var(--lime);margin-top:11px;flex:none;
  }
  .tip-list strong{color:var(--text);font-weight:600;}
  @media (max-width:900px){.split{grid-template-columns:1fr;}}

  /* ---------- FAQ ---------- */
  .faq-group{margin-bottom:36px;}
  .faq-group-title{
    font-size:18px;font-weight:700;color:var(--ink);margin-bottom:14px;
    display:flex;align-items:center;gap:10px;
  }
  .faq-group-title span.chip{
    display:inline-flex;align-items:center;justify-content:center;
    height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;
    background:rgba(196,240,75,.18);color:var(--ink);
  }
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item.open{border-color:rgba(15,30,28,.22);box-shadow:var(--sh-1);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:transparent;border:none;cursor:pointer;text-align:left;
    padding:18px 20px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  }
  .faq-q:hover{background:var(--card-2);}
  .faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform .25s ease;}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--ink);border-radius:2px;
  }
  .faq-icon::before{left:0;top:8px;width:18px;height:2px;}
  .faq-icon::after{left:8px;top:0;width:2px;height:18px;}
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{
    display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease;
  }
  .faq-item.open .faq-a{grid-template-rows:1fr;}
  .faq-a > div{overflow:hidden;}
  .faq-a p{
    padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:52em;
  }

  /* ---------- 两列提示卡 ---------- */
  .tip-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
  .tip-card{
    background:var(--card-2);border:1px solid var(--line);border-radius:var(--r-card);padding:30px;
  }
  .tip-card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:6px;}
  .tip-card .tip-sub{font-size:14px;color:var(--text-3);margin-bottom:14px;}
  .tip-card ul li{
    display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);
    font-size:14.5px;line-height:1.75;color:var(--text-2);
  }
  .tip-card ul li:last-child{border-bottom:none;padding-bottom:0;}
  .tip-card ul li::before{
    content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);margin-top:10px;flex:none;
  }
  @media (max-width:900px){.tip-grid{grid-template-columns:1fr;}}

  /* ---------- 结尾 CTA ---------- */
  .final-cta{
    position:relative;overflow:hidden;background:var(--ink);border-radius:24px;
    padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  }
  .final-cta::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:52px 52px;
  }
  .final-cta > *{position:relative;}
  .final-cta h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--light-text);line-height:1.35;}
  .final-cta p{font-size:15px;color:var(--light-text-2);margin-top:10px;max-width:38em;}
  @media (max-width:768px){.final-cta{padding:32px;}}

  /* ---------- 页脚 ---------- */
  .site-footer{margin-top:72px;background:var(--ink);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 0;}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;gap:40px;padding-bottom:48px;
  }
  .footer-brand .brand-text{color:var(--light-text);}
  .footer-brand .logo-mark::after{background:var(--lime);}
  .footer-brand .logo-mark::before{background:var(--ink);}
  .footer-brand p{font-size:14px;line-height:1.8;color:var(--light-text-2);margin-top:16px;max-width:24em;}
  .footer-social{display:flex;gap:10px;margin-top:20px;}
  .footer-social a{
    width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.14);
    display:flex;align-items:center;justify-content:center;color:var(--light-text-2);
    transition:all .18s ease;
  }
  .footer-social a:hover{color:var(--ink);background:var(--lime);border-color:var(--lime);}
  .footer-col h4{
    font-size:14px;font-weight:600;color:var(--light-text);letter-spacing:.4px;margin-bottom:16px;
  }
  .footer-col a{
    display:block;font-size:13px;color:var(--light-text-2);padding:6px 0;transition:color .18s ease;
  }
  .footer-col a:hover{color:var(--lime);}
  .footer-contact{
    background:var(--ink-2);border-radius:14px;padding:22px;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .footer-contact h4{font-size:14px;font-weight:600;color:var(--light-text);margin-bottom:12px;}
  .footer-contact p{font-size:13px;line-height:1.9;color:var(--light-text-2);}
  .footer-contact strong{color:var(--light-text);font-weight:600;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(242,246,240,.5);
  }
  @media (max-width:900px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .footer-contact{grid-column:1/-1;}
  }
  @media (max-width:560px){
    .footer-grid{grid-template-columns:1fr 1fr;}
    .footer-brand{grid-column:1/-1;}
  }

  /* ---------- 浮动 CTA ---------- */
  .float-cta{
    position:fixed;right:24px;bottom:24px;z-index:60;
    display:inline-flex;align-items:center;gap:8px;
    height:52px;padding:0 24px;border-radius:999px;
    background:var(--lime);color:var(--ink);font-size:15px;font-weight:600;
    box-shadow:var(--sh-2);opacity:0;pointer-events:none;transform:translateY(10px);
    transition:opacity .2s ease,transform .2s ease,background .18s ease;
  }
  .float-cta.is-visible{opacity:1;pointer-events:auto;transform:none;}
  .float-cta:hover{background:var(--lime-d);}
  @media (max-width:640px){
    .float-cta{
      left:12px;right:12px;bottom:12px;height:56px;border-radius:14px;justify-content:center;
    }
    body{padding-bottom:78px;}
    .container{padding:0 18px;}
    .section{padding:56px 0 0;}
  }

/* roulang page: category4 */
:root{
    --ink:#0F1E1C; --ink-2:#17302B; --ink-3:#1F3D36;
    --lime:#C4F04B; --lime-d:#A9D62F;
    --coral:#FF7A45;
    --paper:#F5F3EC; --card:#FFFFFF; --card-2:#FBF9F3; --line:#E3E0D6;
    --text:#16211E; --text-2:#5A6560; --text-3:#8B948F;
    --on-dark:#F2F6F0; --on-dark-2:rgba(242,246,240,.66);
    --sh-1:0 1px 2px rgba(15,30,28,.06),0 8px 24px rgba(15,30,28,.06);
    --sh-2:0 2px 6px rgba(15,30,28,.08),0 18px 40px rgba(15,30,28,.10);
    --r-card:18px; --r-sm:12px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;padding:0;background:var(--paper);color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
    font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,figure,ul,ol{margin:0}
  ul,ol{list-style:none;padding:0}
  a{color:var(--ink);text-decoration:none;transition:color .18s ease}
  img{display:block;max-width:100%}
  button{font-family:inherit}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:12px;z-index:60;padding:0 24px;max-width:1248px;margin:0 auto}
  .nav-shell{
    position:relative;display:flex;align-items:center;gap:14px;
    min-height:68px;padding:10px 14px;background:var(--card);
    border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding-right:6px}
  .brand-mark{position:relative;width:34px;height:34px;border-radius:10px;background:var(--ink);display:inline-block;flex:0 0 auto}
  .brand-mark i{position:absolute;left:8px;top:8px;width:8px;height:8px;border-radius:50%;background:var(--lime)}
  .brand-mark b{position:absolute;right:8px;bottom:8px;width:12px;height:12px;border-radius:4px;background:var(--lime)}
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-name{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.2px}
  .brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.4px}
  .nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border-radius:12px;
    font-size:14px;font-weight:500;color:var(--text-2);border:1px solid transparent;
    transition:all .18s ease;white-space:nowrap;
  }
  .nav-item svg{color:var(--text-3);transition:color .18s ease}
  .nav-item:hover{background:var(--card-2);border-color:var(--line);color:var(--ink)}
  .nav-item:hover svg{color:var(--ink)}
  .nav-item.active{background:var(--card-2);border-color:var(--line);color:var(--ink);font-weight:600}
  .nav-item.active svg{color:var(--ink)}
  .nav-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);display:none;flex:0 0 auto}
  .nav-item.active .nav-dot{display:inline-block}
  .nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    background:var(--card-2);cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:all .2s ease}
  .nav-shell.open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-shell.open .nav-toggle span:nth-child(2){opacity:0}
  .nav-shell.open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .mobile-panel{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 8px);
    background:var(--card-2);border:1px solid var(--line);border-radius:var(--r-card);
    padding:12px;box-shadow:var(--sh-2);
  }
  .nav-shell.open .mobile-panel{display:block}
  .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .mobile-grid .nav-item{background:var(--card);border-color:var(--line);padding:12px;justify-content:flex-start}
  .mobile-panel .btn{width:100%;margin-top:10px}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-weight:600;font-size:15px;line-height:1;border-radius:999px;padding:0 26px;height:48px;
    border:1px solid transparent;cursor:pointer;transition:all .18s ease;text-align:center;
  }
  .btn:hover{transform:translateY(-1px);box-shadow:var(--sh-1)}
  .btn:active{transform:translateY(0) scale(.99);box-shadow:none}
  .btn-primary{background:var(--lime);color:var(--ink)}
  .btn-primary:hover{background:var(--lime-d)}
  .btn-dark{background:var(--ink);color:var(--lime)}
  .btn-dark:hover{background:var(--ink-2);color:var(--lime)}
  .btn-outline{background:transparent;border:1.5px solid var(--ink);color:var(--ink);border-radius:12px;height:44px;padding:0 20px}
  .btn-outline:hover{background:var(--card-2)}
  .btn-sm{height:44px;padding:0 20px;font-size:14px}
  .btn-block{width:100%}
  .btn-ghost{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
    border-radius:12px;padding:10px 2px;background:transparent;border:none;cursor:pointer;
  }
  .btn-ghost svg{transition:transform .18s ease}
  .btn-ghost:hover{color:var(--lime-d);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
  .btn-ghost:hover svg{transform:translateX(3px)}

  /* ---------- generic ---------- */
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1)}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1;
  }
  .badge-lime{background:rgba(196,240,75,.16);color:var(--ink)}
  .badge-plain{background:var(--card-2);color:var(--text-2);border:1px solid var(--line);font-weight:500}
  .sec{padding:96px 0}
  .sec-tight{padding:72px 0}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
  .sec-title{
    display:flex;align-items:center;gap:12px;font-size:30px;font-weight:700;line-height:1.3;color:var(--ink);
  }
  .sec-title::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--lime);flex:0 0 auto}
  .sec-desc{font-size:15px;color:var(--text-2);max-width:640px;margin-top:10px}
  .grid-bg{
    position:absolute;inset:0;pointer-events:none;border-radius:inherit;
    background-image:linear-gradient(to right,rgba(15,30,28,.04) 1px,transparent 1px),
                     linear-gradient(to bottom,rgba(15,30,28,.04) 1px,transparent 1px);
    background-size:32px 32px;
  }

  /* ---------- page hero ---------- */
  .page-hero{padding:28px 0 0}
  .hero-box{
    position:relative;overflow:hidden;background:var(--card-2);border:1px solid var(--line);
    border-radius:24px;padding:44px 40px;display:grid;grid-template-columns:1.35fr .85fr;gap:36px;align-items:center;
  }
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
  .crumb a{color:var(--text-3)}
  .crumb a:hover{color:var(--ink)}
  .crumb .sep{color:var(--line)}
  .crumb .now{color:var(--text)}
  .page-hero h1{
    position:relative;z-index:1;font-size:44px;line-height:1.24;font-weight:800;color:var(--ink);
    letter-spacing:.2px;max-width:16em;
  }
  .page-hero h1 .hl{background:linear-gradient(transparent 62%,var(--lime) 62%);padding:0 2px}
  .hero-lead{position:relative;z-index:1;margin-top:16px;font-size:16px;color:var(--text-2);max-width:34em;line-height:1.8}
  .hero-act{position:relative;z-index:1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px}
  .hero-figure{position:relative;z-index:1}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--sh-2);
  }
  .hero-tag{
    position:absolute;left:-10px;bottom:-12px;display:flex;align-items:center;gap:8px;
    background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;
    box-shadow:var(--sh-1);font-size:13px;color:var(--text-2);
  }
  .hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--lime)}

  /* ---------- support main ---------- */
  .support-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
  .timeline-card{padding:32px}
  .timeline{position:relative;margin-top:8px}
  .timeline::before{
    content:"";position:absolute;left:19px;top:14px;bottom:18px;width:1px;background:var(--line);
  }
  .tl-item{position:relative;display:flex;gap:18px;padding:14px 0}
  .tl-num{
    position:relative;z-index:1;flex:0 0 auto;width:38px;height:38px;border-radius:12px;
    background:var(--card-2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;
  }
  .tl-item .dot{
    position:absolute;left:33px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;
    background:var(--lime);box-shadow:0 0 0 4px var(--card);z-index:2;
  }
  .tl-body h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--ink)}
  .tl-body p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.7}

  /* form */
  .form-card{padding:32px}
  .form-card h2{font-size:22px;font-weight:700;color:var(--ink);line-height:1.35}
  .form-note{margin-top:10px;font-size:14px;color:var(--text-2)}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .field{margin-top:18px;display:flex;flex-direction:column;gap:8px}
  .field label{font-size:14px;color:var(--text-2);font-weight:500}
  .req{color:var(--coral);margin-left:2px}
  .field input,.field textarea,.field select{
    width:100%;border:1px solid var(--line);border-radius:12px;background:var(--card);
    padding:12px 14px;font-size:15px;color:var(--text);line-height:1.6;font-family:inherit;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
  .field input:focus,.field textarea:focus,.field select:focus{
    outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(196,240,75,.35);
  }
  .field textarea{min-height:120px;resize:vertical}
  .form-tip{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.7}
  .form-alert{
    display:none;margin-top:16px;padding:12px 14px;border-radius:12px;font-size:14px;
    background:rgba(196,240,75,.18);color:var(--ink);border:1px solid rgba(196,240,75,.5);
  }
  .form-alert.show{display:block}

  /* prepare list */
  .split{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
  .figure-card{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);background:var(--card);box-shadow:var(--sh-1)}
  .figure-card img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .3s ease}
  .figure-card:hover img{transform:scale(1.03)}
  .check-list{margin-top:20px}
  .check-item{
    display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);
    transition:background .18s ease;
  }
  .check-item:last-child{border-bottom:none}
  .check-item:hover{background:var(--card-2)}
  .check-item .pin{
    flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--lime);margin-top:11px;
    transition:transform .18s ease;
  }
  .check-item:hover .pin{transform:scale(1.34)}
  .check-item strong{display:block;font-size:16px;font-weight:600;color:var(--ink)}
  .check-item span{font-size:14px;color:var(--text-2);line-height:1.7}

  /* info cards */
  .info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .info-card{padding:28px;position:relative;overflow:hidden}
  .info-card .icode{
    width:44px;height:44px;border-radius:12px;background:var(--card-2);border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--ink);margin-bottom:18px;
  }
  .info-card h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.45}
  .info-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
  .info-card .kv{margin-top:16px;font-size:22px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
  .info-card .kv small{font-size:13px;font-weight:500;color:var(--text-3);margin-left:6px}

  /* faq */
  .faq-wrap{display:grid;grid-template-columns:1fr;gap:12px;max-width:920px}
  .faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;transition:border-color .18s ease,box-shadow .18s ease}
  .faq-item:hover{box-shadow:var(--sh-1)}
  .faq-item.open{border-color:rgba(15,30,28,.2);box-shadow:var(--sh-1)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:transparent;border:none;cursor:pointer;text-align:left;
    padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  }
  .faq-sign{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .2s ease}
  .faq-sign::before,.faq-sign::after{
    content:"";position:absolute;background:var(--text-3);border-radius:2px;transition:background .2s ease;
  }
  .faq-sign::before{left:0;top:8px;width:18px;height:2px}
  .faq-sign::after{left:8px;top:0;width:2px;height:18px}
  .faq-item.open .faq-sign{transform:rotate(45deg)}
  .faq-item.open .faq-sign::before,.faq-item.open .faq-sign::after{background:var(--lime-d)}
  .faq-a{display:none;padding:0 22px 18px;font-size:15px;color:var(--text-2);line-height:1.8}
  .faq-item.open .faq-a{display:block}

  /* cta band */
  .cta-band{
    position:relative;overflow:hidden;background:var(--ink);border-radius:24px;padding:56px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
  }
  .cta-band h2{position:relative;z-index:1;font-size:30px;font-weight:800;color:var(--on-dark);line-height:1.3}
  .cta-band p{position:relative;z-index:1;margin-top:12px;font-size:15px;color:var(--on-dark-2);max-width:36em}
  .cta-band .btn{position:relative;z-index:1;flex:0 0 auto}
  .cta-band .grid-bg{background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px)}

  /* footer */
  .site-footer{background:var(--ink);color:var(--on-dark);margin-top:96px;border-top:1px solid rgba(255,255,255,.08)}
  .footer-inner{padding:64px 0 28px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.3fr;gap:32px}
  .footer-brand .brand-name{color:var(--on-dark);display:block;font-size:16px;font-weight:800}
  .footer-brand .brand-sub{color:rgba(242,246,240,.5)}
  .footer-brand p{margin-top:16px;font-size:13px;line-height:1.9;color:var(--on-dark-2);max-width:24em}
  .socials{display:flex;gap:10px;margin-top:20px}
  .socials a{
    width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.12);
    display:flex;align-items:center;justify-content:center;color:rgba(242,246,240,.7);transition:all .18s ease;
  }
  .socials a:hover{color:var(--lime);border-color:rgba(196,240,75,.5);transform:translateY(-1px)}
  .footer-col h4{font-size:13px;font-weight:700;letter-spacing:.4px;color:rgba(242,246,240,.55);margin-bottom:16px}
  .footer-col ul li{margin-bottom:11px}
  .footer-col ul a{font-size:13px;color:rgba(242,246,240,.78);transition:color .18s ease}
  .footer-col ul a:hover{color:var(--lime)}
  .footer-contact{background:var(--ink-2);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:20px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
  .footer-contact h4{font-size:13px;font-weight:700;color:rgba(242,246,240,.6);margin-bottom:14px}
  .footer-contact p{font-size:13px;color:rgba(242,246,240,.78);line-height:1.9;margin-bottom:8px;display:flex;gap:8px;align-items:flex-start}
  .footer-contact .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);margin-top:8px;flex:0 0 auto}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(242,246,240,.5);
  }

  /* float cta */
  .float-cta{
    position:fixed;right:24px;bottom:24px;z-index:60;display:flex;gap:10px;
    opacity:0;pointer-events:none;transition:opacity .2s ease;
  }
  .float-cta.show{opacity:1;pointer-events:auto}
  .fc-main{
    display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 24px;border-radius:999px;
    background:var(--lime);color:var(--ink);font-weight:700;font-size:15px;box-shadow:var(--sh-2);
    transition:all .18s ease;
  }
  .fc-main:hover{background:var(--lime-d);transform:translateY(-1px)}
  .fc-sub{display:none}

  /* responsive */
  @media (max-width:1024px){
    .nav-links{display:none}
    .nav-toggle{display:flex}
    .nav-actions .btn{display:none}
    .page-hero h1{font-size:36px}
    .hero-box{grid-template-columns:1fr;padding:32px 26px}
    .hero-figure img{aspect-ratio:16/9}
    .support-grid{grid-template-columns:1fr}
    .split{grid-template-columns:1fr}
    .info-grid{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
    .footer-contact{grid-column:1 / -1}
    .sec{padding:72px 0}
    .cta-band{padding:40px}
  }
  @media (max-width:767px){
    .container{padding-left:18px;padding-right:18px}
    .site-header{padding:0 18px;top:8px}
    .nav-shell{min-height:62px;padding:8px 10px;gap:10px}
    .brand-sub{display:none}
    .sec{padding:56px 0}
    .sec-title{font-size:22px}
    .page-hero h1{font-size:30px}
    .hero-lead{font-size:15px}
    .hero-box{padding:26px 20px;border-radius:20px;gap:24px}
    .hero-tag{left:0;bottom:-10px}
    .form-row{grid-template-columns:1fr}
    .timeline-card,.form-card{padding:24px}
    .info-grid{grid-template-columns:1fr}
    .faq-q{font-size:16px;padding:16px 18px}
    .faq-a{padding:0 18px 16px}
    .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:20px}
    .cta-band h2{font-size:23px}
    .cta-band .btn{width:100%}
    .footer-grid{grid-template-columns:1fr 1fr}
    .footer-brand{grid-column:1 / -1}
    .footer-inner{padding:44px 0 24px}
    .site-footer{margin-top:56px}
    body{padding-bottom:76px}
    .float-cta{
      left:0;right:0;bottom:0;gap:0;background:var(--ink);padding:8px 10px;
      display:grid;grid-template-columns:1fr auto;align-items:center;
    }
    .fc-main{height:44px;width:100%;justify-content:center;font-size:14px;border-radius:12px}
    .fc-sub{
      display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 14px;
      font-size:13px;color:rgba(242,246,240,.72);border-radius:12px;
    }
    .fc-sub:hover{color:var(--lime)}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:26px;line-height:1.3}
    .hero-act{gap:10px}
    .hero-act .btn{width:100%}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:6px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important}
  }