/* roulang page: index */
:root{
  --brand:#12B98C;
  --brand-deep:#0A6F58;
  --coral:#FF5C39;
  --amber:#FFD166;
  --ink:#0A1418;
  --ink-2:#10201F;
  --ink-text:#E8F2EE;
  --ink-muted:#93A9A4;
  --ink-line:rgba(255,255,255,.10);
  --paper:#F6F8F5;
  --card:#FFFFFF;
  --text:#0F1A1C;
  --muted:#6B7C79;
  --line:#E3E9E4;
  --tier-1:#7FD1B9;
  --tier-2:#FFB27A;
  --tier-3:#FF6B8A;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-soft:0 18px 40px rgba(16,42,36,.08);
  --shadow-soft-hover:0 22px 48px rgba(16,42,36,.14);
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:1rem;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;left:0;right:0;top:0;z-index:60;
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:var(--ink);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.0625rem;letter-spacing:.01em;white-space:nowrap;}
.logo-mark{
  width:32px;height:32px;flex:none;border:1.5px solid var(--brand);border-radius:10px;
  display:grid;place-items:center;background:rgba(10,20,24,.85);
  color:var(--brand);font-weight:800;font-size:.9375rem;line-height:1;
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:10px 12px;font-size:.9375rem;font-weight:500;
  color:rgba(232,242,238,.82);border-radius:8px;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  color:rgba(232,242,238,.85);border:1px solid rgba(255,255,255,.16);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:#fff;border-color:var(--brand);background:rgba(18,185,140,.14);}
.hamburger{
  width:42px;height:42px;border-radius:10px;display:none;place-items:center;
  color:#fff;border:1px solid rgba(255,255,255,.18);
}
.hamburger:hover{border-color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:.9375rem;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#04120E;box-shadow:0 12px 28px rgba(18,185,140,.28);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 18px 34px rgba(18,185,140,.36);}
.btn-primary:active{transform:none;box-shadow:0 8px 18px rgba(18,185,140,.28);}
.btn-ghost{border:1px solid rgba(232,242,238,.42);color:var(--ink-text);}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:rgba(18,185,140,.14);transform:translateY(-2px);}
.btn-ghost:active{transform:none;}
.btn-dark-ghost{border:1px solid var(--line);color:var(--text);background:#fff;}
.btn-dark-ghost:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.btn-sm{height:40px;padding:0 16px;font-size:.875rem;border-radius:10px;}
.btn-block{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;background:var(--ink);
  padding:150px 0 100px;min-height:660px;display:flex;align-items:center;
}
.hero-bg{
  position:absolute;inset:-2%;background-size:cover;background-position:center;
  opacity:.55;animation:heroBreathe 20s ease-in-out infinite;
}
@keyframes heroBreathe{
  0%,100%{transform:scale(1.02);opacity:.5;}
  50%{transform:scale(1.07);opacity:.64;}
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,20,24,.95) 0%,rgba(10,20,24,.72) 46%,rgba(10,20,24,.22) 100%);
}
.hero-cloud{position:absolute;right:-60px;top:60px;width:520px;max-width:70vw;opacity:.07;pointer-events:none;}
.hero-cloud svg{width:100%;height:auto;display:block;}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;width:100%;}
.hero-copy{max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(18,185,140,.45);
  background:rgba(18,185,140,.12);color:var(--brand);
  font-size:.8125rem;font-weight:600;letter-spacing:.04em;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(2rem,4.4vw,3.4rem);font-weight:800;line-height:1.18;
  letter-spacing:-.02em;color:var(--ink-text);margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  font-size:1.0625rem;line-height:1.9;color:var(--ink-muted);
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;}
.hero-fact{display:flex;flex-direction:column;gap:2px;}
.hero-fact b{font-size:1.375rem;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.3;}
.hero-fact span{font-size:.8125rem;color:var(--ink-muted);}

/* 首屏浮动面板 */
.hero-panel{
  background:rgba(16,32,31,.86);border:1px solid var(--ink-line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-dark);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.hero-panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.hero-panel-top h2{font-size:1.0625rem;font-weight:700;color:var(--ink-text);}
.hero-panel-top span{font-size:.8125rem;color:var(--ink-muted);}
.panel-percent{display:flex;align-items:baseline;gap:8px;margin-bottom:14px;}
.panel-percent b{font-size:2.5rem;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1;}
.panel-percent span{font-size:.875rem;color:var(--ink-muted);}
.seg-track{display:flex;gap:5px;margin-bottom:22px;}
.seg{flex:1;height:10px;border-radius:999px;background:rgba(255,255,255,.13);transition:background .3s ease;}
.seg.is-done{background:var(--brand);}
.seg.is-current{background:var(--amber);}
.seg.is-current{animation:pulseSeg 2.4s ease-in-out infinite;}
@keyframes pulseSeg{0%,100%{opacity:1;}50%{opacity:.55;}}
.panel-dots-label{font-size:.8125rem;color:var(--ink-muted);margin-bottom:10px;}
.dots{display:flex;gap:9px;flex-wrap:wrap;}
.dot{
  width:28px;height:28px;border-radius:999px;border:1.5px solid rgba(255,255,255,.22);
  display:grid;place-items:center;font-size:.6875rem;color:var(--ink-muted);
  font-variant-numeric:tabular-nums;transition:all .25s ease;
}
.dot.is-done{background:var(--brand);border-color:var(--brand);color:#04120E;font-weight:700;}
.panel-foot{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--ink-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.panel-foot span{font-size:.8125rem;color:var(--ink-muted);}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-dark{background:var(--ink);color:var(--ink-text);}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.h2{
  position:relative;padding-left:16px;font-size:clamp(1.4rem,2.4vw,2rem);
  font-weight:700;line-height:1.35;letter-spacing:-.01em;
}
.h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  border-radius:2px;background:var(--brand);
}
.section-dark .h2{color:var(--ink-text);}
.section-head p{color:var(--muted);font-size:.9375rem;max-width:620px;margin-top:10px;}
.section-dark .section-head p{color:var(--ink-muted);}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;font-size:.9375rem;white-space:nowrap;transition:gap .2s ease;}
.link-more:hover{gap:12px;}

/* ============ 四步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 22px;box-shadow:var(--shadow-soft);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:nth-child(odd){transform:translateY(-12px);}
.step:hover{box-shadow:var(--shadow-soft-hover);}
.step:nth-child(odd):hover{transform:translateY(-16px);}
.step-num{
  width:42px;height:42px;border-radius:999px;display:grid;place-items:center;
  background:rgba(18,185,140,.12);color:var(--brand-deep);
  font-weight:800;font-size:.9375rem;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:1.0625rem;font-weight:700;line-height:1.4;margin-bottom:10px;}
.step p{font-size:.875rem;color:var(--muted);line-height:1.85;}
.step-tag{
  display:inline-block;margin-top:16px;padding:4px 10px;border-radius:999px;
  font-size:.75rem;font-weight:600;color:var(--brand-deep);background:rgba(18,185,140,.10);
}

/* ============ 奖励预览 ============ */
.reward-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px;}
.reward-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft-hover);}
.reward-card:nth-child(1){grid-column:span 3;}
.reward-card:nth-child(2){grid-column:span 3;}
.reward-card:nth-child(3),
.reward-card:nth-child(4),
.reward-card:nth-child(5){grid-column:span 2;}
.tier-bar{height:3px;width:100%;}
.tier-1{background:var(--tier-1);}
.tier-2{background:var(--tier-2);}
.tier-3{background:var(--tier-3);}
.reward-figure{aspect-ratio:16/9;overflow:hidden;background:var(--ink-2);}
.reward-card:nth-child(3) .reward-figure,
.reward-card:nth-child(4) .reward-figure,
.reward-card:nth-child(5) .reward-figure{aspect-ratio:16/10;}
.reward-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.reward-card:hover .reward-figure img{transform:scale(1.03);}
.reward-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reward-body h3{font-size:1.0625rem;font-weight:700;line-height:1.4;}
.reward-card:nth-child(1) .reward-body h3,
.reward-card:nth-child(2) .reward-body h3{font-size:1.25rem;}
.reward-body p{font-size:.875rem;color:var(--muted);line-height:1.85;}
.reward-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:.75rem;font-weight:600;background:var(--paper);border:1px solid var(--line);color:var(--muted);
}
.chip-coral{border-color:rgba(255,92,57,.35);color:var(--coral);background:rgba(255,92,57,.07);}
.chip-amber{border-color:rgba(255,209,102,.55);color:#9A7400;background:rgba(255,209,102,.16);}
.chip-brand{border-color:rgba(18,185,140,.35);color:var(--brand-deep);background:rgba(18,185,140,.09);}

/* ============ 数据指标 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric{
  background:var(--ink-2);border:1px solid var(--ink-line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-dark);
}
.metric b{display:block;font-size:clamp(1.75rem,3vw,2.375rem);color:var(--amber);line-height:1.15;font-variant-numeric:tabular-nums;}
.metric span{display:block;margin-top:8px;font-size:.875rem;color:var(--ink-muted);}

/* ============ 最新信息 CMS 列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .2s ease,box-shadow .2s ease;height:100%;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft-hover);}
.news-figure{aspect-ratio:16/9;overflow:hidden;background:var(--ink-2);}
.news-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-figure img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{
  font-size:1.0625rem;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:.875rem;color:var(--muted);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-foot time{font-size:.8125rem;color:var(--muted);font-variant-numeric:tabular-nums;}
.news-arrow{
  width:32px;height:32px;border-radius:999px;display:grid;place-items:center;
  background:var(--paper);color:var(--brand-deep);border:1px solid var(--line);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.news-card:hover .news-arrow{background:var(--brand);color:#04120E;border-color:var(--brand);transform:translateX(3px);}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:1.75rem;color:var(--brand);margin-bottom:14px;display:block;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:background .25s ease,box-shadow .25s ease;
}
.faq-item[open]{background:#fff;box-shadow:var(--shadow-soft);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:20px 22px;font-weight:600;font-size:1rem;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";width:3px;align-self:stretch;min-height:22px;border-radius:2px;
  background:var(--brand);flex:none;
}
.faq-idx{color:var(--brand-deep);font-size:.8125rem;font-weight:700;font-variant-numeric:tabular-nums;flex:none;}
.faq-q{flex:1;}
.faq-arrow{color:var(--muted);transition:transform .25s ease;flex:none;}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--brand);}
.faq-answer{padding:0 22px 22px 61px;color:var(--muted);font-size:.9375rem;line-height:1.9;}

/* ============ 底部 CTA ============ */
.cta-band{position:relative;overflow:hidden;background:var(--ink);border-radius:24px;padding:56px 48px;}
.cta-band-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,20,24,.95),rgba(10,20,24,.62));}
.cta-band-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2.125rem);font-weight:800;color:var(--ink-text);line-height:1.3;margin-bottom:10px;}
.cta-band p{color:var(--ink-muted);font-size:.9375rem;max-width:560px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--ink-text);padding-top:56px;}
.footer-cloud{
  height:1px;background:linear-gradient(90deg,transparent,rgba(18,185,140,.6),transparent);margin-bottom:52px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.0625rem;margin-bottom:16px;}
.footer-brand .logo-mark{background:transparent;}
.footer-desc{color:var(--ink-muted);font-size:.875rem;line-height:1.9;max-width:320px;}
.footer-col h4{
  font-size:.875rem;font-weight:700;color:var(--brand);letter-spacing:.08em;
  margin-bottom:18px;
}
.footer-col li{margin-bottom:12px;}
.footer-col a,.footer-col span{color:var(--ink-muted);font-size:.875rem;transition:color .2s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--ink-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:.8125rem;color:var(--ink-muted);}
.footer-bottom a{color:var(--ink-muted);font-size:.8125rem;}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,20,24,.6);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(340px,86vw);z-index:80;
  background:var(--ink);border-left:1px solid var(--ink-line);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px;
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-head .logo{font-size:1rem;}
.drawer-close{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:var(--ink-muted);border:1px solid var(--ink-line);}
.drawer-close:hover{color:#fff;border-color:var(--brand);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;
  color:rgba(232,242,238,.84);font-size:.9375rem;font-weight:500;transition:background .2s ease,color .2s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(18,185,140,.14);color:#fff;}
.drawer-foot{padding-top:16px;border-top:1px solid var(--ink-line);}

/* ============ 移动吸底条 ============ */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  height:64px;padding:0 16px calc(env(safe-area-inset-bottom,0px));
  display:none;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(10,20,24,.96);border-top:1px solid var(--ink-line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;transform:translateY(100%);transition:opacity .3s ease,transform .3s ease;
}
.mobile-bar.is-visible{opacity:1;transform:none;}
.mobile-bar p{font-size:.8125rem;color:var(--ink-muted);line-height:1.3;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none;}
  .hamburger{display:grid;}
  .hero{padding:130px 0 84px;min-height:auto;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-copy{max-width:100%;}
  .hero-cloud{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);gap:20px;}
  .step:nth-child(odd){transform:none;}
  .step:nth-child(odd):hover{transform:translateY(-4px);}
  .reward-grid{grid-template-columns:repeat(2,1fr);}
  .reward-card:nth-child(1),
  .reward-card:nth-child(2),
  .reward-card:nth-child(3),
  .reward-card:nth-child(4),
  .reward-card:nth-child(5){grid-column:span 1;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px;}
  .hero{padding:118px 0 72px;}
  .hero-sub{font-size:1rem;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-panel{padding:22px;}
  .panel-percent b{font-size:2.125rem;}
  .steps{grid-template-columns:1fr;}
  .reward-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:38px 24px;border-radius:20px;}
  .faq-answer{padding-left:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .mobile-bar{display:flex;}
  .hero-facts{gap:20px;}
}
@media (max-width:520px){
  .logo-text{font-size:.9375rem;}
  .metrics{grid-template-columns:1fr;}
  .hero-facts{gap:16px;}
  .hero-fact b{font-size:1.25rem;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#12B98C;
  --brand-deep:#0A6F58;
  --coral:#FF5C39;
  --amber:#FFD166;
  --ink:#0A1418;
  --ink-2:#10201F;
  --ink-text:#E8F2EE;
  --ink-muted:#93A9A4;
  --ink-line:rgba(255,255,255,.10);
  --paper:#F6F8F5;
  --card:#FFFFFF;
  --text:#0F1A1C;
  --muted:#6B7C79;
  --line:#E3E9E4;
  --tier-1:#7FD1B9;
  --tier-2:#FFB27A;
  --tier-3:#FF6B8A;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px rgba(16,42,36,.08);
  --shadow-card-hover:0 26px 52px rgba(16,42,36,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 36px}}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-weight:700;font-size:.9375rem;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-primary{background:var(--brand);color:#04211A;box-shadow:0 10px 24px rgba(18,185,140,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,185,140,.36)}
.btn-primary:active{transform:none;filter:brightness(.97)}
.btn-ghost{border:1px solid rgba(255,255,255,.32);color:var(--ink-text);background:rgba(255,255,255,.05)}
.btn-ghost:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--line);background:#fff;color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(16,42,36,.10)}
.btn-sm{height:40px;padding:0 18px;font-size:.875rem}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:var(--ink);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:32px;height:32px;flex:none;border-radius:9px;
  border:1.5px solid var(--brand);background:rgba(10,20,24,.85);
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1rem;line-height:1;
}
.brand-name{color:#F2FAF7;font-weight:800;font-size:1.0625rem;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 12px;
  color:#CFE3DC;font-size:.9375rem;font-weight:600;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:20px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left center;
  transition:transform .24s ease-out;border-radius:2px;
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#FFFFFF}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.22);color:#DCEBE6;background:rgba(255,255,255,.05);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.15);color:#fff;transform:translateY(-1px)}
.menu-btn{display:none}

/* 阅读进度 */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:95;background:linear-gradient(90deg,var(--brand),var(--amber));transition:width .12s linear}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:100;
  background:var(--ink);border-left:1px solid var(--ink-line);
  transform:translateX(100%);transition:transform .28s ease-out;
  display:flex;flex-direction:column;padding:22px 20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{color:#F2FAF7;font-weight:800;font-size:1rem}
.drawer-nav a{display:flex;align-items:center;height:48px;color:#D3E5DF;font-size:.9375rem;font-weight:600;border-bottom:1px solid var(--ink-line)}
.drawer-nav a:hover{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:18px}
.drawer-foot .btn{width:100%}
.drawer-mask{position:fixed;inset:0;z-index:90;background:rgba(4,10,12,.62);opacity:0;pointer-events:none;transition:opacity .28s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

@media (max-width:1023px){
  .nav-links{display:none}
  .header-actions .btn{display:none}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.22);color:#DCEBE6;background:rgba(255,255,255,.05)}
  .icon-btn{display:none}
}

/* ============ 文章头部暗区 ============ */
.article-hero{position:relative;background:var(--ink);padding:128px 0 60px;overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(135deg,rgba(10,20,24,.95) 0%,rgba(10,20,24,.74) 46%,rgba(10,20,24,.93) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-110px;width:540px;height:540px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(18,185,140,.22),transparent 62%);pointer-events:none;
}
.article-hero-inner{position:relative;z-index:1;max-width:880px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-muted);margin-bottom:20px}
.breadcrumb a{color:#CDE7DE;transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#93A9A4;max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(1.75rem,3.6vw,2.9rem);font-weight:800;line-height:1.24;letter-spacing:-.02em;color:#F2FAF7}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;font-size:.8125rem;color:var(--ink-muted);font-weight:500}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:.75rem;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.badge-tier1{background:rgba(127,209,185,.16);color:var(--tier-1);border:1px solid rgba(127,209,185,.45)}
.badge-tier2{background:rgba(255,178,122,.16);color:var(--tier-2);border:1px solid rgba(255,178,122,.45)}
.badge-tier3{background:rgba(255,107,138,.16);color:var(--tier-3);border:1px solid rgba(255,107,138,.45)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28)}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .article-hero{padding:108px 0 48px}
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-title{
  font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.35;
  padding-left:14px;border-left:4px solid var(--brand);color:var(--text);
}
.section-sub{color:var(--muted);font-size:.9375rem;margin-top:10px}
.link-more{color:var(--brand-deep);font-weight:700;font-size:.9375rem;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--brand);gap:10px;transition:gap .2s ease}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start}
.article-paper{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:clamp(22px,3.4vw,48px);box-shadow:var(--shadow-card);
}
.article-side{position:sticky;top:96px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card)}
.side-card+.side-card{margin-top:18px}
.side-title{font-size:.8125rem;font-weight:700;color:var(--brand-deep);letter-spacing:.1em;margin-bottom:14px}
.info-row{display:flex;justify-content:space-between;gap:14px;font-size:.8125rem;padding:10px 0;border-bottom:1px dashed var(--line);color:var(--muted)}
.info-row:last-child{border-bottom:0}
.info-row strong{color:var(--text);font-weight:600;text-align:right}
.toc-link{
  display:block;padding:9px 12px;font-size:.875rem;color:var(--muted);
  border-left:2px solid var(--line);border-radius:0 8px 8px 0;transition:all .2s ease;
}
.toc-link:hover{color:var(--brand-deep);border-left-color:var(--brand);background:#F1F8F5;padding-left:16px}
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:26px}
  .article-side{position:static;order:-1}
  .side-card+.side-card{margin-top:14px}
}

/* ============ 正文排版 ============ */
.article-body{font-size:1.0625rem;line-height:1.9;color:#20302D}
.article-body p{margin:1.25em 0}
.article-body h2{
  font-size:clamp(1.3rem,2.2vw,1.6rem);font-weight:700;line-height:1.45;
  margin:2.2em 0 .8em;padding-left:14px;border-left:4px solid var(--brand);color:var(--text);
}
.article-body h3{font-size:1.125rem;font-weight:700;margin:1.8em 0 .6em;color:var(--text)}
.article-body h4{font-size:1rem;font-weight:700;margin:1.6em 0 .5em}
.article-body a{color:var(--brand-deep);border-bottom:1px solid rgba(18,185,140,.4);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body ul,.article-body ol{padding-left:1.4em;margin:1.2em 0}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0}
.article-body li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:1em 1.3em;background:#EAF6F1;border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;color:#22332F;
}
.article-body blockquote p{margin:.4em 0}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;max-width:100%;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:.8125rem;color:var(--muted);text-align:center;margin-top:.7em}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-body code{background:#EDF3F0;border-radius:6px;padding:2px 6px;font-size:.9375em;color:var(--brand-deep)}
.article-body pre{background:var(--ink);color:#DCEBE6;padding:18px;border-radius:12px;overflow-x:auto;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}
.table-scroll{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:12px}
.table-scroll table{width:100%;border-collapse:collapse;font-size:.9375rem;min-width:520px}
.article-body th{background:#F1F8F5;text-align:left;font-weight:700;color:var(--text)}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#EAF6F1;color:var(--brand-deep);font-size:.8125rem;font-weight:600;transition:all .2s ease;
}
.tag:hover{background:var(--brand);color:#04211A;transform:translateY(-2px)}
.empty-state{text-align:center;padding:64px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card)}
.empty-state i{font-size:28px;color:var(--brand);display:block;margin-bottom:16px}
.empty-state h2{font-size:1.25rem;font-weight:700;margin-bottom:10px;color:var(--text)}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* ============ 卡片 ============ */
.card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--ink-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:14px;top:14px}
.card-media::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--brand);z-index:2}
.card.tier2 .card-media::before{background:var(--tier-2)}
.card.tier3 .card-media::before{background:var(--tier-3)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:1.0625rem;font-weight:700;line-height:1.45;color:var(--text)}
.card-excerpt{
  font-size:.875rem;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--muted);font-weight:500}
.card-arrow{color:var(--brand);transition:transform .2s ease}
.card:hover .card-arrow{transform:translateX(4px)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
@media (max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){.related-grid{grid-template-columns:1fr}}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:var(--ink-text);
  border-radius:22px;padding:clamp(30px,4vw,56px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(255,92,57,.24),transparent 65%);pointer-events:none;
}
.cta-band h2{font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:700;line-height:1.4;color:#F2FAF7}
.cta-band p{margin-top:12px;color:var(--ink-muted);font-size:.9375rem;max-width:540px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--ink-muted);padding:72px 0 28px}
.footer-cloud{height:1px;background:linear-gradient(90deg,transparent,rgba(18,185,140,.65),transparent);margin-bottom:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F2FAF7;font-weight:800;font-size:1.125rem;margin-bottom:16px}
.footer-desc{font-size:.875rem;line-height:1.85;color:var(--ink-muted);max-width:360px}
.footer-col h4{font-size:.875rem;font-weight:700;letter-spacing:.1em;color:var(--brand);margin-bottom:18px}
.footer-col li{margin-bottom:12px;font-size:.875rem;line-height:1.6}
.footer-col a{color:#B9CEC8;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--ink-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;font-size:.8125rem;color:#6E827E;
}
.footer-bottom a{color:#93A9A4}
.footer-bottom a:hover{color:var(--brand)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:30px}}

@media (max-width:520px){
  .article-title{font-size:1.5rem}
  .btn{height:44px;padding:0 18px;font-size:.875rem}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand:#12B98C;
  --brand-deep:#0A6F58;
  --coral:#FF5C39;
  --amber:#FFD166;
  --ink:#0A1418;
  --ink-2:#10201F;
  --ink-text:#E8F2EE;
  --ink-muted:#93A9A4;
  --ink-line:rgba(255,255,255,.10);
  --paper:#F6F8F5;
  --card:#FFFFFF;
  --text:#0F1A1C;
  --muted:#6B7C79;
  --line:#E3E9E4;
  --tier-1:#7FD1B9;
  --tier-2:#FFB27A;
  --tier-3:#FF6B8A;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
  --shadow-light:0 18px 40px rgba(16,42,36,.08);
  --shadow-light-hover:0 26px 52px rgba(16,42,36,.14);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font-sans);
  font-size:1rem;line-height:1.9;
  color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
button,input{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;
}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.container{padding-left:36px;padding-right:36px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:var(--ink);
  border-bottom-color:var(--ink-line);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--brand);border-radius:9px;
  background:var(--ink);color:var(--brand);
  font-size:.9375rem;font-weight:800;line-height:1;
}
.brand-name{font-size:1.0625rem;font-weight:800;color:#fff;letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;padding:6px 1px;
  font-size:.9375rem;font-weight:500;color:rgba(255,255,255,.80);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;
}
.nav-link:hover,.nav-link.is-active{color:#fff;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  color:#fff;cursor:pointer;transition:background .2s ease,transform .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.20);transform:translateY(-1px);}
.menu-btn{
  display:none;width:38px;height:38px;border-radius:999px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  color:#fff;cursor:pointer;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:.9375rem;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-primary{background:var(--brand);color:#04221A;box-shadow:0 10px 26px rgba(18,185,140,.28);}
.btn-primary:hover{background:#1ACD9C;transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,185,140,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(18,185,140,.24);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--text);border-color:var(--line);box-shadow:var(--shadow-light);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:.875rem;}
.btn-coral{background:var(--coral);color:#fff;box-shadow:0 10px 26px rgba(255,92,57,.30);}
.btn-coral:hover{background:#FF7155;transform:translateY(-2px);}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);z-index:120;
  background:var(--ink);border-left:1px solid var(--ink-line);
  padding:22px 20px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .3s ease-out;
  box-shadow:-20px 0 60px rgba(0,0,0,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--ink-line);
  background:rgba(255,255,255,.06);color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;
  color:var(--ink-text);font-size:.9375rem;font-weight:500;
  border-bottom:1px solid var(--ink-line);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--brand);background:rgba(18,185,140,.08);}
.drawer-foot{margin-top:auto;padding-top:18px;}
.overlay{
  position:fixed;inset:0;background:rgba(4,10,12,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ Hero（分类页窄幅） ============ */
.page-hero{
  position:relative;overflow:hidden;background:var(--ink);
  padding:132px 0 52px;min-height:360px;display:flex;align-items:flex-end;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.5;transform:scale(1.04);
}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,20,24,.94) 0%,rgba(10,20,24,.78) 48%,rgba(10,20,24,.46) 100%);
}
.cloud-arc{
  position:absolute;border:1px solid rgba(232,242,238,.08);border-radius:50%;
  pointer-events:none;
}
.cloud-arc.a{width:520px;height:520px;right:-140px;top:-200px;}
.cloud-arc.b{width:340px;height:340px;right:40px;bottom:-190px;}
.page-hero-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:.8125rem;font-weight:500;color:var(--ink-muted);margin-bottom:16px;
}
.breadcrumb a{color:var(--ink-muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .is-current{color:var(--ink-text);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.4rem);
  font-weight:800;line-height:1.18;letter-spacing:-.02em;
  color:#fff;max-width:820px;
}
.page-hero h1 .hl{color:var(--brand);}
.hero-lead{
  margin-top:18px;max-width:640px;
  font-size:1.0625rem;line-height:1.85;color:var(--ink-muted);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  font-size:.8125rem;font-weight:500;
  border:1px solid rgba(18,185,140,.34);color:#B9F0DF;background:rgba(18,185,140,.10);
}
.tag-coral{border-color:rgba(255,92,57,.38);color:#FFC5B6;background:rgba(255,92,57,.10);}
.tag-amber{border-color:rgba(255,209,102,.38);color:#FFE7AE;background:rgba(255,209,102,.10);}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-paper{background:var(--paper);}
.section-white{background:#fff;}
.section-ink{background:var(--ink);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:700;letter-spacing:.14em;
  color:var(--brand-deep);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--coral);}
h2.section-title{
  position:relative;
  font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.35;
  letter-spacing:-.01em;color:var(--text);padding-left:16px;
}
h2.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:4px;background:var(--brand);
}
.section-desc{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.9;}
.section-ink h2.section-title,.section-ink h3{color:#fff;}
.section-ink .section-desc{color:var(--ink-muted);}
.section-ink .eyebrow{color:var(--brand);}

/* ============ 双栏：图文 + 时间轴 ============ */
.split-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){
  .split-grid{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:44px;align-items:start;}
}
.article-block{
  display:grid;grid-template-columns:1fr;gap:24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-light);padding:26px;
}
@media (min-width:768px){
  .article-block{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);align-items:start;gap:28px;}
}
.article-figure{position:relative;border-radius:var(--radius-img);overflow:hidden;background:var(--ink-2);}
.article-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .35s ease-out;}
.article-block:hover .article-figure img{transform:scale(1.03);}
.figure-cap{
  position:absolute;left:12px;bottom:12px;
  padding:5px 12px;border-radius:999px;
  background:rgba(10,20,24,.72);color:#DCEBE6;
  font-size:.75rem;font-weight:500;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.article-text h3{font-size:1.125rem;font-weight:700;line-height:1.45;margin-bottom:12px;}
.article-text p{color:var(--muted);margin-bottom:14px;}
.article-text p:last-of-type{margin-bottom:0;}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{
  position:relative;padding-left:26px;font-size:.9375rem;color:var(--text);line-height:1.75;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:14px;height:14px;border-radius:5px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:calc(.55em + 3px);width:5px;height:8px;
  border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(40deg);
}

/* 时间轴 */
.timeline-panel{
  background:var(--ink);border:1px solid var(--ink-line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-dark);
}
.timeline-panel .panel-title{
  color:#fff;font-size:1.125rem;font-weight:700;margin-bottom:6px;
}
.timeline-panel .panel-sub{color:var(--ink-muted);font-size:.875rem;margin-bottom:22px;}
.timeline{position:relative;padding-left:28px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--coral),rgba(255,92,57,.12));
  border-radius:2px;
}
.timeline-item{position:relative;padding-bottom:26px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-24px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--coral);box-shadow:0 0 0 4px rgba(255,92,57,.18);
}
.timeline-item h4{color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:6px;}
.timeline-item p{color:var(--ink-muted);font-size:.875rem;line-height:1.75;}
.timeline-item .step-time{
  display:inline-block;margin-bottom:8px;padding:2px 10px;border-radius:999px;
  font-size:.75rem;font-weight:700;color:var(--amber);
  background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.28);
  font-variant-numeric:tabular-nums;
}

/* ============ 机制要点卡片 ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
.mech-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-light);
  padding:26px 24px;overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.mech-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);border-color:#D3DED8;}
.mech-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--brand),rgba(18,185,140,0));
}
.mech-card.wide{grid-column:1 / -1;}
@media (min-width:768px){
  .mech-card.wide{
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px;align-items:center;
  }
}
.mech-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:14px;
  background:rgba(18,185,140,.10);border:1px solid rgba(18,185,140,.30);
  color:var(--brand-deep);font-weight:800;font-size:.875rem;
  font-variant-numeric:tabular-nums;
}
.mech-card h3{font-size:1.0625rem;font-weight:700;line-height:1.45;margin-bottom:10px;}
.mech-card p{color:var(--muted);font-size:.9375rem;line-height:1.85;}
.mech-card .mech-media{border-radius:var(--radius-img);overflow:hidden;background:var(--ink-2);}
.mech-card .mech-media img{aspect-ratio:16/9;object-fit:cover;width:100%;border-radius:var(--radius-img);}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:.75rem;font-weight:700;
  background:var(--paper);border:1px solid var(--line);color:var(--muted);
}
.badge.b1{border-color:rgba(127,209,185,.55);color:#2C7A63;background:rgba(127,209,185,.12);}
.badge.b2{border-color:rgba(255,178,122,.55);color:#A9612C;background:rgba(255,178,122,.14);}
.badge.b3{border-color:rgba(255,107,138,.48);color:#B23A5A;background:rgba(255,107,138,.12);}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:1fr;gap:26px;}
@media (min-width:1024px){.scene-grid{grid-template-columns:minmax(0,.62fr) minmax(0,1.38fr);gap:40px;align-items:start;}}
.pill-list{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  padding:8px 16px;border-radius:999px;font-size:.875rem;font-weight:600;
  background:#fff;border:1px solid var(--line);color:var(--muted);cursor:pointer;
  transition:all .2s ease-out;
}
.pill:hover{border-color:var(--brand);color:var(--brand-deep);}
.pill.is-on{background:var(--ink);border-color:var(--ink);color:#fff;}
.scene-list{display:grid;gap:18px;}
.scene-item{
  display:grid;grid-template-columns:1fr;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
@media (min-width:768px){.scene-item{grid-template-columns:150px minmax(0,1fr);align-items:center;gap:22px;}}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);}
.scene-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);}
.scene-item h3{font-size:1.0625rem;font-weight:700;margin-bottom:8px;}
.scene-item p{color:var(--muted);font-size:.9375rem;line-height:1.85;}

/* ============ 指标条 ============ */
.metric-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-light);padding:30px 24px;margin-top:52px;
}
.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
@media (min-width:900px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.metric{text-align:center;position:relative;padding:6px 4px;}
@media (min-width:900px){
  .metric + .metric::before{
    content:"";position:absolute;left:-12px;top:14%;bottom:14%;width:1px;background:var(--line);
  }
}
.metric-num{
  font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;line-height:1.15;
  color:var(--brand-deep);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric-num .unit{font-size:.9375rem;font-weight:700;color:var(--muted);margin-left:4px;}
.metric-label{margin-top:8px;font-size:.875rem;font-weight:600;color:var(--text);}
.metric-note{margin-top:4px;font-size:.75rem;color:var(--muted);}

/* ============ 分段进度（视觉） ============ */
.progress-card{
  margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-light);
}
.progress-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;}
.progress-head h3{font-size:1rem;font-weight:700;}
.progress-head .pct{
  font-size:1.5rem;font-weight:800;color:var(--brand-deep);font-variant-numeric:tabular-nums;
}
.segments{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;}
.segment{height:10px;border-radius:999px;background:#E9EFEA;}
.segment.on{background:var(--brand);}
.segment.cur{background:var(--amber);}
.sign-row{display:flex;align-items:center;gap:10px;margin-top:18px;flex-wrap:wrap;}
.sign-dot{
  width:26px;height:26px;border-radius:50%;border:1.5px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.6875rem;font-weight:700;color:var(--muted);background:#fff;
}
.sign-dot.on{background:var(--brand);border-color:var(--brand);color:#04221A;}
.sign-text{font-size:.8125rem;color:var(--muted);font-weight:500;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:background .2s ease,box-shadow .2s ease,transform .2s ease;
}
.faq-item[open]{background:#fff;box-shadow:var(--shadow-light);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 22px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--brand);
}
.faq-idx{
  flex-shrink:0;width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(18,185,140,.10);color:var(--brand-deep);
  font-size:.75rem;font-weight:800;font-variant-numeric:tabular-nums;
}
.faq-q{flex:1;font-size:1rem;font-weight:700;line-height:1.6;color:var(--text);}
.faq-arrow{
  flex-shrink:0;color:var(--muted);font-size:.8125rem;
  transition:transform .25s ease-out,color .25s ease-out;
}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--brand-deep);}
.faq-a{padding:0 22px 22px 64px;color:var(--muted);font-size:.9375rem;line-height:1.9;}

/* ============ CTA ============ */
.cta-section{
  position:relative;overflow:hidden;background:var(--ink);
  padding:76px 0;
}
.cta-section .cloud-arc.c{width:460px;height:460px;left:-160px;bottom:-240px;}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:32px;align-items:center;
}
@media (min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:56px;}}
.cta-inner h2{
  font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;line-height:1.3;color:#fff;letter-spacing:-.01em;
}
.cta-inner p{margin-top:14px;color:var(--ink-muted);font-size:1rem;line-height:1.9;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-card{
  background:var(--ink-2);border:1px solid var(--ink-line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-dark);
}
.cta-card h3{color:#fff;font-size:1.0625rem;font-weight:700;margin-bottom:8px;}
.cta-card p{color:var(--ink-muted);font-size:.875rem;line-height:1.8;margin-bottom:18px;}
.field{display:grid;gap:8px;margin-bottom:14px;}
.field label{font-size:.8125rem;font-weight:600;color:#C9DAD4;}
.field input{
  height:48px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.05);
  border:1px solid var(--ink-line);
  color:#fff;padding:0 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder{color:#6E8580;}
.field input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(18,185,140,.18);
  background:rgba(255,255,255,.08);
}
.field.has-error input{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,92,57,.16);}
.form-hint{font-size:.75rem;color:var(--ink-muted);line-height:1.7;}
.form-hint.error{color:#FFB3A3;display:none;}
.field.has-error .form-hint.error{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--ink-muted);padding:64px 0 0;}
.footer-cloud{
  height:1px;width:100%;
  background:linear-gradient(90deg,rgba(18,185,140,0),rgba(18,185,140,.65),rgba(18,185,140,0));
  margin-bottom:44px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand span:last-child{color:#fff;font-size:1.0625rem;font-weight:800;}
.footer-desc{font-size:.875rem;line-height:1.9;color:var(--ink-muted);max-width:340px;}
.footer-col h4{
  font-size:.875rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col a,.footer-col span{font-size:.875rem;color:var(--ink-muted);line-height:1.7;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--ink-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:.8125rem;color:#7E9691;}
.footer-bottom a{font-size:.8125rem;color:#9FB5B0;}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-btn{display:inline-flex;}
  .header-actions .btn{display:none;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .page-hero{padding:118px 0 44px;min-height:320px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .page-hero{padding:110px 0 40px;min-height:300px;}
  .hero-lead{font-size:1rem;}
  .article-block{padding:20px;}
  .timeline-panel{padding:22px 18px;}
  .mech-card{padding:22px 18px;}
  .faq-a{padding-left:22px;}
  .faq-item summary{padding:18px;}
  .metric-band{padding:24px 18px;}
  .cta-card{padding:22px 18px;}
  .segments{gap:4px;}
  .segment{height:8px;}
}
@media (max-width:519px){
  .header-inner{height:64px;}
  .brand-name{font-size:1rem;}
  .page-hero h1{font-size:1.75rem;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .metric-num{font-size:1.75rem;}
  .btn{padding:11px 18px;font-size:.875rem;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand:#12B98C;
  --brand-deep:#0A6F58;
  --coral:#FF5C39;
  --amber:#FFD166;
  --ink:#0A1418;
  --ink-2:#10201F;
  --ink-text:#E8F2EE;
  --ink-muted:#93A9A4;
  --ink-line:rgba(255,255,255,.10);
  --paper:#F6F8F5;
  --card:#FFFFFF;
  --text:#0F1A1C;
  --muted:#6B7C79;
  --line:#E3E9E4;
  --tier-1:#7FD1B9;
  --tier-2:#FFB27A;
  --tier-3:#FF6B8A;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-light:0 18px 40px rgba(16,42,36,.08);
  --shadow-light-hover:0 24px 48px rgba(16,42,36,.14);
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:1rem;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 36px;}}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:var(--ink);
  border-bottom-color:var(--ink-line);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:16px;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:1.0625rem;
  letter-spacing:.01em;
  color:#fff;
  flex:0 0 auto;
}
.logo-mark{
  width:32px;height:32px;
  border-radius:8px;
  border:1.5px solid var(--brand);
  background:var(--ink);
  color:var(--brand);
  display:grid;place-items:center;
  font-size:1rem;font-weight:800;
  line-height:1;
}
.nav-links{display:none;}
.nav-link{
  position:relative;
  display:block;
  padding:8px 12px;
  font-size:.9375rem;
  font-weight:500;
  color:rgba(232,242,238,.82);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease-out;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  color:var(--ink-text);
  transition:background .2s ease,transform .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.10);transform:translateY(-1px);}
.nav-toggle{display:grid;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .nav-actions{margin-left:8px;}
  .nav-toggle{display:none;}
}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(320px,86vw);
  background:var(--ink);
  border-left:1px solid var(--ink-line);
  z-index:80;
  transform:translateX(105%);
  transition:transform .28s ease-out;
  display:flex;
  flex-direction:column;
  padding:88px 20px calc(24px + env(safe-area-inset-bottom));
}
.drawer.is-open{transform:translateX(0);}
.drawer a.drawer-link{
  display:flex;align-items:center;
  height:48px;
  color:var(--ink-text);
  font-size:.9375rem;
  font-weight:500;
  border-bottom:1px solid var(--ink-line);
}
.drawer a.drawer-link.is-active{color:var(--brand);}
.drawer-cta{margin-top:auto;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(6,14,16,.62);
  z-index:70;
  opacity:0;pointer-events:none;
  transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-size:.9375rem;
  font-weight:600;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease,filter .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:var(--brand);
  color:#04140F;
  box-shadow:0 10px 24px rgba(18,185,140,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,185,140,.34);}
.btn-ghost{
  border-color:rgba(255,255,255,.32);
  color:var(--ink-text);
}
.btn-ghost:hover{background:rgba(255,255,255,.10);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand-deep);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(0,0,0,.18);}
.btn-outline{
  border-color:var(--brand);
  color:var(--brand-deep);
  background:#fff;
}
.btn-outline:hover{background:rgba(18,185,140,.08);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 16px;font-size:.875rem;}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:var(--ink-text);
  padding:152px 0 92px;
  text-align:center;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(10,20,24,.94) 0%,rgba(10,20,24,.62) 48%,rgba(10,20,24,.88) 100%);
}
.hero-cloud{
  position:absolute;
  left:0;right:0;bottom:-10px;
  height:150px;
  opacity:.08;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(18,185,140,.5);
  background:rgba(18,185,140,.12);
  color:#9FE6D2;
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.04em;
}
.hero h1{
  margin-top:22px;
  font-size:clamp(2rem,4.4vw,3.4rem);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:#fff;
}
.hero-lead{
  max-width:660px;
  margin:18px auto 0;
  font-size:1.0625rem;
  color:rgba(232,242,238,.80);
}
.hero-actions{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
}
.hero-facts{
  margin-top:44px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:center;
}
.hero-fact{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--ink-line);
  background:rgba(16,32,31,.6);
  font-size:.8125rem;
  color:var(--ink-muted);
}
.hero-fact b{
  color:var(--amber);
  font-weight:700;
  font-variant-numeric:tabular-nums;
}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-dark{
  background:var(--ink-2);
  color:var(--ink-text);
}
.section-head{margin-bottom:36px;}
.section-head.center{text-align:center;}
.h2-bar{
  position:relative;
  padding-left:16px;
  font-size:clamp(1.4rem,2.4vw,2rem);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
.h2-bar::before{
  content:"";
  position:absolute;
  left:0;top:.2em;bottom:.2em;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.section-dark .h2-bar{color:#fff;}
.section-head.center .h2-bar{padding-left:0;}
.section-head.center .h2-bar::before{display:none;}
.section-sub{
  margin-top:14px;
  max-width:720px;
  font-size:.9375rem;
  color:var(--muted);
}
.section-head.center .section-sub{margin-left:auto;margin-right:auto;}
.section-dark .section-sub{color:var(--ink-muted);}
.section-head.center .section-sub{text-align:center;}

/* ============ 筛选胶囊 ============ */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
  margin-bottom:36px;
}
.pill{
  height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:.875rem;
  font-weight:600;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,background .2s ease;
}
.pill:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.pill.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#04140F;
  box-shadow:0 10px 22px rgba(18,185,140,.24);
}

/* ============ 奖励瀑布卡片 ============ */
.masonry{
  column-count:3;
  column-gap:24px;
}
.reward-card{
  display:inline-block;
  width:100%;
  vertical-align:top;
  break-inside:avoid;
  margin:0 0 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);}
.reward-card[hidden]{display:none;}
.tier-bar{height:3px;width:100%;}
.tier-1 .tier-bar{background:var(--tier-1);}
.tier-2 .tier-bar{background:var(--tier-2);}
.tier-3 .tier-bar{background:var(--tier-3);}
.reward-media{
  aspect-ratio:16/9;
  background:var(--ink-2);
  overflow:hidden;
}
.reward-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .25s ease-out;
}
.reward-card:hover .reward-media img{transform:scale(1.03);}
.reward-body{padding:18px 20px 22px;}
.reward-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:10px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:.8125rem;
  font-weight:600;
  border:1px solid transparent;
}
.badge-1{background:rgba(127,209,185,.18);border-color:rgba(127,209,185,.55);color:var(--brand-deep);}
.badge-2{background:rgba(255,178,122,.20);border-color:rgba(255,178,122,.55);color:#9A4E15;}
.badge-3{background:rgba(255,107,138,.18);border-color:rgba(255,107,138,.55);color:#A32A43;}
.cycle{font-size:.8125rem;font-weight:500;color:var(--muted);font-variant-numeric:tabular-nums;}
.reward-card h3{
  font-size:1.0625rem;
  font-weight:700;
  line-height:1.4;
}
.reward-card p{
  margin-top:8px;
  font-size:.9375rem;
  color:var(--muted);
  line-height:1.8;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--paper);
  font-size:.8125rem;
  font-weight:500;
  color:var(--muted);
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:.875rem;
  font-weight:600;
  color:var(--brand-deep);
}
.card-link svg{transition:transform .2s ease-out;}
.card-link:hover svg{transform:translateX(3px);}
.empty-note{
  display:none;
  padding:36px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  text-align:center;
  color:var(--muted);
  background:#fff;
}
.empty-note.is-show{display:block;}

/* ============ 四步流程 ============ */
.flow{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.flow::before{
  content:"";
  position:absolute;
  left:6%;right:6%;top:50%;
  border-top:2px dashed rgba(18,185,140,.35);
}
.flow-step{
  position:relative;
  z-index:1;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.flow-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-light-hover);}
.flow-step:nth-child(odd){transform:translateY(-12px);}
.flow-step:nth-child(odd):hover{transform:translateY(-18px);}
.flow-num{
  width:40px;height:40px;
  border-radius:999px;
  background:var(--brand);
  color:#04140F;
  display:grid;place-items:center;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-top:16px;font-size:1.0625rem;font-weight:700;line-height:1.4;}
.flow-step p{margin-top:8px;font-size:.9375rem;color:var(--muted);line-height:1.8;}

/* ============ 进度与连签 ============ */
.meter-panel{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:28px;
  align-items:center;
}
.panel{
  background:rgba(255,255,255,.04);
  border:1px solid var(--ink-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-dark);
}
.meter{
  display:grid;
  grid-template-columns:repeat(10,1fr);
  gap:6px;
  margin:18px 0 16px;
}
.meter-seg{
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  transition:background .3s ease,box-shadow .3s ease;
}
.meter-seg.is-done{background:var(--brand);}
.meter-seg.is-current{background:var(--amber);box-shadow:0 0 0 3px rgba(255,209,102,.20);}
.meter-row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
}
.meter-value{
  font-size:clamp(1.8rem,4vw,2.6rem);
  font-weight:700;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.meter-label{font-size:.8125rem;color:var(--ink-muted);}
.signin-dots{display:flex;gap:10px;margin-top:16px;}
.dot{
  width:26px;height:26px;
  border-radius:999px;
  border:1.5px solid rgba(255,255,255,.28);
  display:grid;place-items:center;
  font-size:.6875rem;
  color:var(--ink-muted);
  font-variant-numeric:tabular-nums;
}
.dot.is-on{background:var(--brand);border-color:var(--brand);color:#04140F;font-weight:700;}
.panel h3{font-size:1.0625rem;font-weight:700;color:#fff;}
.panel p{margin-top:10px;font-size:.9375rem;color:var(--ink-muted);line-height:1.85;}
.panel-list{display:grid;gap:12px;margin-top:18px;}
.panel-list li{
  display:flex;
  gap:10px;
  font-size:.9375rem;
  color:var(--ink-text);
  line-height:1.75;
}
.panel-list li::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:11px;
  border-radius:2px;
  background:var(--coral);
}

/* ============ 指标条 ============ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.metric{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 22px;
  box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);}
.metric-num{
  font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:700;
  line-height:1.1;
  color:var(--brand-deep);
  font-variant-numeric:tabular-nums;
}
.metric-name{margin-top:10px;font-size:.9375rem;font-weight:600;}
.metric-desc{margin-top:6px;font-size:.875rem;color:var(--muted);line-height:1.75;}

/* ============ 场景卡 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);}
.scene-media{aspect-ratio:16/9;background:var(--ink-2);overflow:hidden;}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out;}
.scene-card:hover .scene-media img{transform:scale(1.03);}
.scene-body{padding:20px 22px 24px;}
.scene-body h3{font-size:1.0625rem;font-weight:700;line-height:1.4;}
.scene-body p{margin-top:8px;font-size:.9375rem;color:var(--muted);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{
  display:grid;
  gap:12px;
  max-width:880px;
  margin:0 auto;
}
.faq-item{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:background .2s ease,box-shadow .2s ease;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:12px;
  padding:18px 20px;
  border-left:3px solid var(--brand);
  font-size:1rem;
  font-weight:600;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item[open]{background:#fff;box-shadow:var(--shadow-light);}
.faq-index{color:var(--brand-deep);font-weight:700;font-variant-numeric:tabular-nums;}
.faq-arrow{margin-left:auto;flex:0 0 auto;transition:transform .2s ease-out;color:var(--muted);}
.faq-item[open] .faq-arrow{transform:rotate(180deg);}
.faq-body{
  padding:0 20px 20px 55px;
  font-size:.9375rem;
  color:var(--muted);
  line-height:1.85;
}

/* ============ CTA 色带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand-deep);
  color:#EAF7F2;
  border-radius:24px;
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:260px;height:260px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  font-weight:700;
  line-height:1.35;
  color:#fff;
}
.cta-band p{margin-top:10px;font-size:.9375rem;color:rgba(234,247,242,.86);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:var(--ink-text);
  padding:64px 0 0;
}
.footer-cloud{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,185,140,.6),transparent);
  margin-bottom:44px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:32px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.0625rem;
  font-weight:800;
  color:#fff;
}
.footer-desc{
  margin-top:16px;
  max-width:340px;
  font-size:.9375rem;
  color:var(--ink-muted);
  line-height:1.85;
}
.footer-col h4{
  font-size:.875rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{
  font-size:.9375rem;
  color:rgba(232,242,238,.78);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:46px;
  padding:20px 0 28px;
  border-top:1px solid var(--ink-line);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:.8125rem;
  color:var(--ink-muted);
}
.footer-bottom a{color:var(--brand);}

/* ============ 移动端吸底条 ============ */
.sticky-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:55;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:var(--ink);
  border-top:1px solid var(--ink-line);
  box-shadow:0 -8px 24px rgba(0,0,0,.3);
}
.sticky-cta span{font-size:.8125rem;color:var(--ink-muted);}
@media (max-width:767px){
  .sticky-cta{display:flex;}
  body{padding-bottom:76px;}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .masonry{column-count:2;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .flow-step:nth-child(odd){transform:none;}
  .flow-step:nth-child(odd):hover{transform:translateY(-6px);}
  .meter-panel{grid-template-columns:1fr;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .hero{padding:126px 0 72px;}
  .hero-lead{font-size:1rem;}
  .hero-facts{gap:8px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:26px;}
  .cta-band{padding:28px 24px;border-radius:20px;}
  .panel{padding:22px;}
  .faq-body{padding-left:20px;}
}
@media (max-width:639px){
  .masonry{column-count:1;}
  .flow{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .meter{grid-template-columns:repeat(5,1fr);}
  .hero-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
    --brand:#12B98C;
    --brand-deep:#0A6F58;
    --coral:#FF5C39;
    --amber:#FFD166;
    --ink:#0A1418;
    --ink-2:#10201F;
    --ink-text:#E8F2EE;
    --ink-muted:#93A9A4;
    --ink-line:rgba(255,255,255,.10);
    --paper:#F6F8F5;
    --card:#FFFFFF;
    --text:#0F1A1C;
    --muted:#6B7C79;
    --line:#E3E9E4;
    --tier-1:#7FD1B9;
    --tier-2:#FFB27A;
    --tier-3:#FF6B8A;
    --r-card:18px;
    --r-img:14px;
    --r-btn:12px;
    --shadow-card:0 18px 40px rgba(16,42,36,.08);
    --shadow-card-hover:0 24px 48px rgba(16,42,36,.14);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  html body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    background:var(--paper);
    color:var(--text);
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,figure{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input{font:inherit}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
  @media (min-width:1024px){.container{padding-left:36px;padding-right:36px}}

  .skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--brand-deep);padding:10px 16px;border-radius:0 0 12px 0;z-index:99}
  .skip-link:focus{left:0}

  /* ---------- header ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:rgba(255,255,255,.08);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid rgba(255,255,255,.16);
    transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
  }
  .site-header.is-stuck{
    background:var(--ink);
    border-bottom-color:var(--ink-line);
    box-shadow:0 8px 24px rgba(0,0,0,.28);
  }
  .header-inner{
    max-width:1240px;margin:0 auto;height:72px;
    padding-left:20px;padding-right:20px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  @media (min-width:768px){.header-inner{padding-left:24px;padding-right:24px}}
  @media (min-width:1024px){.header-inner{padding-left:36px;padding-right:36px;gap:24px}}

  .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;flex:0 0 auto}
  .logo-mark{
    width:32px;height:32px;flex:0 0 auto;display:grid;place-items:center;
    border:1.5px solid var(--brand);border-radius:9px;background:var(--ink-2);
    color:#fff;font-size:15px;font-weight:800;line-height:1;
  }
  .brand-name{font-size:1.0625rem;letter-spacing:.01em;white-space:nowrap}

  .nav-links{display:none;align-items:center;gap:2px}
  @media (min-width:1024px){.nav-links{display:flex}}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:40px;
    padding:0 12px;border-radius:10px;font-size:.9375rem;
    color:rgba(255,255,255,.82);transition:color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
  }
  .nav-link:hover{color:#fff}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:#fff;font-weight:700}
  .nav-link.is-active::after{transform:scaleX(1)}

  .header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .icon-btn{
    width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
    color:#fff;border:1px solid rgba(255,255,255,.18);
    transition:background .2s ease,transform .2s ease;
  }
  .icon-btn:hover{background:rgba(255,255,255,.12)}
  .icon-btn:active{transform:scale(.96)}
  .icon-btn svg{width:17px;height:17px}

  .hamburger{
    width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
    display:grid;place-content:center;gap:5px;padding:0 10px;
  }
  @media (min-width:1024px){.hamburger{display:none}}
  .hamburger span{display:block;height:2px;width:20px;border-radius:2px;background:#fff;transition:transform .26s ease,opacity .26s ease}
  .hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .hamburger.is-open span:nth-child(2){opacity:0}
  .hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:.9375rem;font-weight:700;white-space:nowrap;
    transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  }
  .btn-sm{height:40px;padding:0 16px;font-size:.875rem;border-radius:11px}
  .btn-primary{background:var(--brand);color:#04140F;box-shadow:0 10px 22px rgba(18,185,140,.22)}
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,185,140,.34)}
  .btn-primary:active{transform:translateY(0);box-shadow:none}
  .btn-ghost{border:1px solid rgba(255,255,255,.34);color:#fff}
  .btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-light{background:#fff;color:var(--ink)}
  .btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.24)}
  .btn-outline{border:1px solid var(--line);color:var(--text);background:#fff}
  .btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}

  /* ---------- drawer ---------- */
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:80;
    background:var(--ink);border-left:1px solid var(--ink-line);
    padding:88px 20px 24px;display:flex;flex-direction:column;
    transform:translateX(100%);transition:transform .3s ease;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer a{
    display:flex;align-items:center;min-height:48px;font-size:.9375rem;
    color:var(--ink-text);border-bottom:1px solid rgba(255,255,255,.08);
  }
  .drawer a.is-active{color:var(--brand);font-weight:700}
  .drawer-cta{margin-top:auto;padding-top:18px;border-top:1px solid var(--ink-line)}
  .drawer-cta .btn{width:100%}
  .drawer-mask{
    position:fixed;inset:0;z-index:70;background:rgba(4,10,12,.62);
    opacity:0;pointer-events:none;transition:opacity .3s ease;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  @media (min-width:1024px){.drawer,.drawer-mask{display:none}}

  /* ---------- hero ---------- */
  .hero{
    position:relative;overflow:hidden;color:var(--ink-text);
    padding:128px 0 96px;
    background-color:var(--ink);
    background-image:
      linear-gradient(135deg,rgba(10,20,24,.94) 0%,rgba(10,20,24,.74) 46%,rgba(10,20,24,.36) 100%),
      url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
  }
  @media (min-width:1024px){.hero{padding:150px 0 118px}}
  .hero-cloud{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
  .hero-inner{position:relative;z-index:2}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:rgba(232,242,238,.64);margin-bottom:18px}
  .crumb a{color:rgba(232,242,238,.78)}
  .crumb a:hover{color:#fff}
  .crumb .sep{opacity:.5}
  .crumb .current{color:#fff;font-weight:600;max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .hero-title{
    font-size:clamp(2rem,4.4vw,3.4rem);font-weight:800;line-height:1.18;
    letter-spacing:-.02em;color:#fff;max-width:820px;
  }
  .hero-sub{margin-top:18px;max-width:640px;font-size:1.0625rem;color:var(--ink-muted)}
  .hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
  .hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
  .hero-tag{
    display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
    font-size:.8125rem;font-weight:500;color:var(--ink-text);
    border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  }

  /* ---------- stat band ---------- */
  .stat-band{padding-bottom:8px;background:var(--paper)}
  .stat-card{
    position:relative;z-index:3;margin-top:-58px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);overflow:hidden;
    display:grid;grid-template-columns:repeat(2,1fr);
  }
  @media (min-width:860px){.stat-card{grid-template-columns:repeat(4,1fr)}}
  .stat-item{padding:24px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .stat-item:nth-child(2n){border-right:0}
  @media (min-width:860px){
    .stat-item:nth-child(2n){border-right:1px solid var(--line)}
    .stat-item:nth-child(4n){border-right:0}
    .stat-item{border-bottom:0}
  }
  .stat-value{
    font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;color:var(--brand-deep);
    font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.2;
  }
  .stat-value em{font-style:normal;font-size:.75rem;font-weight:700;color:var(--muted);margin-left:6px}
  .stat-label{margin-top:6px;font-size:.8125rem;font-weight:500;color:var(--muted)}

  /* ---------- section ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:88px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
  .section-title{
    position:relative;padding-left:16px;
    font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.35;letter-spacing:-.01em;
  }
  .section-title::before{
    content:"";position:absolute;left:0;top:.34em;bottom:.3em;width:4px;border-radius:2px;background:var(--brand);
  }
  .section-sub{margin-top:12px;font-size:.9375rem;color:var(--muted);max-width:760px}

  /* ---------- rail ---------- */
  .rail-wrap{position:relative}
  .rail{
    display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding:6px 4px 20px;scrollbar-width:none;-ms-overflow-style:none;
  }
  .rail::-webkit-scrollbar{display:none}
  .rail-card{
    flex:0 0 calc((100% - 20px)/1.2);scroll-snap-align:start;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);overflow:hidden;
    transition:transform .2s ease,box-shadow .2s ease;
    display:flex;flex-direction:column;
  }
  @media (min-width:768px){.rail-card{flex:0 0 calc((100% - 40px)/2.2)}}
  @media (min-width:1024px){.rail-card{flex:0 0 calc((100% - 60px)/3.5)}}
  .rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
  .rail-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-2)}
  .rail-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
  .rail-card:hover .rail-media img{transform:scale(1.03)}
  .rail-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,20,24,0) 40%,rgba(10,20,24,.45) 100%)}
  .rail-body{padding:20px;display:flex;flex-direction:column;flex:1}
  .rail-card h3{margin-top:12px;font-size:1.125rem;font-weight:700;line-height:1.45}
  .rail-card p{margin-top:10px;font-size:.9375rem;color:var(--muted);line-height:1.8;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .rail-foot{
    margin-top:auto;padding-top:14px;margin-top:18px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    font-size:.8125rem;color:var(--muted);font-weight:500;
  }
  .rail-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:700}
  .rail-more svg{width:14px;height:14px;transition:transform .2s ease}
  .rail-card:hover .rail-more svg{transform:translateX(3px)}

  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:.75rem;font-weight:600;line-height:1;
    background:rgba(127,209,185,.16);color:#0A6F58;border:1px solid rgba(127,209,185,.5);
  }
  .badge-2{background:rgba(255,178,122,.18);color:#9A4D14;border-color:rgba(255,178,122,.55)}
  .badge-3{background:rgba(255,107,138,.14);color:#A32A46;border-color:rgba(255,107,138,.45)}

  .rail-controls{display:flex;gap:10px}
  .rail-btn{
    width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;
    display:grid;place-items:center;color:var(--brand-deep);
    transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
  }
  .rail-btn svg{width:16px;height:16px}
  .rail-btn:hover{background:var(--brand);border-color:var(--brand);color:#04140F;transform:translateY(-2px)}

  /* ---------- panels ---------- */
  .duo-grid{display:grid;gap:24px}
  @media (min-width:1024px){.duo-grid{grid-template-columns:1.06fr .94fr;gap:28px}}
  .panel{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px 24px;box-shadow:var(--shadow-card);
  }
  @media (min-width:768px){.panel{padding:32px}}
  .panel-title{font-size:1.125rem;font-weight:700;line-height:1.5}
  .panel-note{margin-top:10px;font-size:.9375rem;color:var(--muted)}
  .list-row{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
  .list-row:last-child{border-bottom:0;padding-bottom:0}
  .list-dot{width:10px;height:10px;border-radius:999px;background:var(--brand);flex:0 0 auto;margin-top:10px}
  .list-dot.coral{background:var(--coral)}
  .list-dot.amber{background:var(--amber)}
  .list-row h4{font-size:1rem;font-weight:700;line-height:1.5}
  .list-row p{margin-top:4px;font-size:.9375rem;color:var(--muted);line-height:1.8}
  .tip{
    margin-top:20px;padding:16px 18px;border-radius:14px;
    background:rgba(18,185,140,.08);border-left:4px solid var(--brand);
    font-size:.9375rem;color:#0A5343;
  }

  /* ---------- steps ---------- */
  .steps{display:grid;gap:18px;position:relative}
  @media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}
  .step{
    position:relative;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .step:hover{box-shadow:var(--shadow-card-hover)}
  @media (min-width:1024px){
    .step:nth-child(odd){transform:translateY(-12px)}
    .step:nth-child(odd):hover{transform:translateY(-16px)}
    .step:not(:last-child)::after{
      content:"";position:absolute;top:44px;right:-16px;width:16px;height:2px;
      background-image:linear-gradient(90deg,var(--brand) 0 50%,transparent 50% 100%);
      background-size:8px 2px;opacity:.6;
    }
  }
  .step-num{
    width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
    background:var(--brand);color:#04140F;font-weight:800;font-size:1rem;
    font-variant-numeric:tabular-nums;
  }
  .step h3{margin-top:16px;font-size:1.0625rem;font-weight:700;line-height:1.5}
  .step p{margin-top:8px;font-size:.9375rem;color:var(--muted);line-height:1.8}
  .step-time{margin-top:14px;font-size:.8125rem;font-weight:600;color:var(--brand-deep)}

  @media (max-width:1023px){
    .steps{padding-left:22px}
    .steps::before{
      content:"";position:absolute;left:6px;top:10px;bottom:10px;width:2px;
      background:linear-gradient(180deg,var(--brand),rgba(18,185,140,.12));
    }
    .step::before{
      content:"";position:absolute;left:-22px;top:36px;width:14px;height:14px;border-radius:999px;
      background:var(--coral);border:2px solid #fff;box-shadow:0 0 0 2px rgba(255,92,57,.18);
    }
  }

  /* ---------- cta ---------- */
  .cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--ink-text);padding:64px 0}
  @media (min-width:1024px){.cta-band{padding:84px 0}}
  .cta-cloud{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
  .cta-inner{position:relative;z-index:2;display:flex;flex-direction:column;gap:26px}
  @media (min-width:960px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between}}
  .cta-title{font-size:clamp(1.5rem,2.8vw,2.25rem);font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.3}
  .cta-text{margin-top:12px;max-width:620px;font-size:.9375rem;color:var(--ink-muted)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}
  .pulse{display:flex;gap:6px;margin-top:22px;max-width:420px}
  .pulse span{flex:1;height:6px;border-radius:999px;background:rgba(255,255,255,.16)}
  .pulse span.is-on{background:var(--amber)}

  /* ---------- footer ---------- */
  .site-footer{background:var(--ink);color:var(--ink-muted);padding:56px 0 28px}
  @media (min-width:1024px){.site-footer{padding:72px 0 32px}}
  .footer-cloud{
    height:1px;margin-bottom:40px;
    background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.26),rgba(18,185,140,.32),rgba(255,255,255,0));
  }
  .footer-grid{display:grid;gap:32px}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr .8fr .9fr 1fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.0625rem}
  .footer-desc{margin-top:14px;font-size:.875rem;line-height:1.9;max-width:360px}
  .footer-col h4{
    font-size:.875rem;font-weight:700;color:var(--brand);
    letter-spacing:.08em;margin-bottom:16px;
  }
  .footer-col li{margin-bottom:10px;font-size:.875rem;color:var(--ink-muted)}
  .footer-col a{transition:color .2s ease}
  .footer-col a:hover{color:#fff}
  .footer-bottom{
    margin-top:36px;padding-top:20px;border-top:1px solid var(--ink-line);
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    font-size:.8125rem;
  }
  .footer-bottom a{color:var(--brand)}
  .footer-bottom a:hover{text-decoration:underline}

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

/* roulang page: category4 */
:root{
  --brand:#12B98C;
  --brand-deep:#0A6F58;
  --coral:#FF5C39;
  --amber:#FFD166;
  --ink:#0A1418;
  --ink-2:#10201F;
  --ink-text:#E8F2EE;
  --ink-muted:#93A9A4;
  --ink-line:rgba(255,255,255,.10);
  --paper:#F6F8F5;
  --card:#FFFFFF;
  --text:#0F1A1C;
  --muted:#6B7C79;
  --line:#E3E9E4;
  --tier-1:#7FD1B9;
  --tier-2:#FFB27A;
  --tier-3:#FF6B8A;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
  --shadow-light:0 18px 40px rgba(16,42,36,.08);
  --shadow-light-hover:0 22px 48px rgba(16,42,36,.14);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.9;color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3{letter-spacing:-.01em;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 36px;}}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{
  background:var(--ink);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:9px;
  border:1.5px solid var(--brand);background:var(--ink-2);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:0;
}
.brand-text{font-size:1.0625rem;font-weight:800;color:#fff;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;padding:6px 0;font-size:.9375rem;font-weight:500;
  color:rgba(232,242,238,.80);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  border-radius:2px;background:var(--brand);transition:width .22s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.20);color:var(--ink-text);background:rgba(255,255,255,.04);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.nav-search:hover{border-color:var(--brand);background:rgba(18,185,140,.14);transform:translateY(-1px);}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:11px;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.20);color:var(--ink-text);background:rgba(255,255,255,.04);
}
.nav-burger:hover{border-color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:.95rem;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease-out,filter .2s ease-out,box-shadow .2s ease-out,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#04140F;box-shadow:0 10px 24px rgba(18,185,140,.28);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,185,140,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(18,185,140,.26);}
.btn-ghost{border-color:rgba(255,255,255,.36);color:var(--ink-text);background:rgba(255,255,255,.05);}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:rgba(18,185,140,.16);transform:translateY(-2px);}
.btn-outline{border-color:var(--line);color:var(--brand-deep);background:#fff;}
.btn-outline:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-light);}
.btn-sm{height:40px;padding:0 16px;font-size:.875rem;border-radius:10px;}

/* ---------- 角色区 ---------- */
.hero{
  position:relative;overflow:hidden;color:var(--ink-text);
  background:var(--ink) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:132px 0 76px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,20,24,.95) 0%,rgba(10,20,24,.74) 46%,rgba(10,20,24,.40) 100%);
}
.hero .container{position:relative;z-index:2;}
.cloud-arc{position:absolute;border:1px solid rgba(255,255,255,.07);border-radius:50%;pointer-events:none;z-index:1;}
.cloud-arc.a{width:520px;height:520px;right:-140px;top:-160px;}
.cloud-arc.b{width:340px;height:340px;right:120px;bottom:-190px;}
.cloud-arc.c{width:200px;height:200px;left:-80px;bottom:-90px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:.8125rem;font-weight:500;color:var(--ink-muted);margin-bottom:20px;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{opacity:.5;}
.crumbs .current{color:var(--ink-text);max-width:22ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero h1{font-size:clamp(2rem,4.4vw,3.4rem);font-weight:800;line-height:1.18;letter-spacing:-.02em;color:#fff;max-width:18ch;}
.hero-lead{margin-top:20px;max-width:640px;color:rgba(232,242,238,.82);font-size:1.0625rem;line-height:1.9;}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-tags{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);
  font-size:.8125rem;font-weight:500;color:rgba(232,242,238,.86);
}
.tag-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}

/* ---------- 板块 ---------- */
.section{padding:56px 0;}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-paper{background:var(--paper);}
.section-white{background:#fff;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px;}
.h2{
  position:relative;padding-left:16px;
  font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.32;
}
.h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--brand);}
.section-sub{margin-top:12px;padding-left:16px;max-width:760px;color:var(--muted);font-size:.95rem;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:rgba(18,185,140,.10);color:var(--brand-deep);
  font-size:.75rem;font-weight:700;letter-spacing:.08em;
}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;gap:22px;grid-template-columns:1fr;}
@media(min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);border-color:#D6E0D8;}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,185,140,.10);color:var(--brand-deep);margin-bottom:18px;
  font-weight:800;font-size:.9rem;font-variant-numeric:tabular-nums;
}
.card h3{font-size:1.125rem;font-weight:650;line-height:1.4;margin-bottom:10px;}
.card p{color:var(--muted);font-size:.9375rem;line-height:1.85;}
.card .card-foot{margin-top:18px;display:flex;align-items:center;gap:8px;font-size:.8125rem;font-weight:600;color:var(--brand-deep);}

/* ---------- 指标条 ---------- */
.stats{
  display:grid;gap:1px;grid-template-columns:1fr;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  margin-top:36px;
}
@media(min-width:640px){.stats{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{background:#fff;padding:24px 22px;}
.stat .num{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:800;line-height:1.2;color:var(--brand-deep);font-variant-numeric:tabular-nums;}
.stat .num small{font-size:.9rem;font-weight:600;margin-left:4px;color:var(--muted);}
.stat .label{margin-top:6px;font-size:.8125rem;font-weight:500;color:var(--muted);}

/* ---------- 双栏：流程 + 常见问题 ---------- */
.split{display:grid;gap:32px;grid-template-columns:1fr;}
@media(min-width:1024px){.split{grid-template-columns:0.92fr 1.08fr;gap:48px;}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-light);}
@media(min-width:1024px){.panel{padding:34px;}}
.steps{position:relative;}
.step{position:relative;padding-left:64px;padding-bottom:30px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:19px;top:44px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(18,185,140,.85),rgba(18,185,140,.12));
}
.step:last-child::before{display:none;}
.step-no{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  border:2px solid var(--brand);background:#fff;color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.9375rem;font-variant-numeric:tabular-nums;z-index:1;
}
.step h3{font-size:1.0625rem;font-weight:650;line-height:1.4;margin-bottom:8px;}
.step p{color:var(--muted);font-size:.9375rem;line-height:1.85;}
.step .meta{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);color:var(--muted);
  font-size:.75rem;font-weight:500;
}
.chip.is-coral{border-color:rgba(255,92,57,.35);color:#C63B1D;background:rgba(255,92,57,.07);}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;}
.faq details{
  background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:14px;padding:0 18px;transition:background .2s ease,box-shadow .2s ease;
}
.faq details[open]{background:#fff;box-shadow:var(--shadow-light);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;
  padding:16px 0;font-size:1rem;font-weight:600;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none;}
.faq .faq-no{color:var(--brand);font-weight:800;font-size:.8125rem;font-variant-numeric:tabular-nums;flex:0 0 auto;}
.faq .faq-arrow{margin-left:auto;flex:0 0 auto;color:var(--muted);transition:transform .2s ease;}
.faq details[open] .faq-arrow{transform:rotate(180deg);}
.faq .faq-body{padding:0 0 18px 30px;color:var(--muted);font-size:.9375rem;line-height:1.9;}

/* ---------- 图文区块 ---------- */
.media-grid{display:grid;gap:28px;grid-template-columns:1fr;align-items:center;}
@media(min-width:1024px){.media-grid{grid-template-columns:1.05fr 0.95fr;gap:52px;}}
.media-figure{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-light);background:var(--ink-2);}
.media-figure img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out;}
.media-figure:hover img{transform:scale(1.03);}
.media-badge{
  position:absolute;left:16px;top:16px;height:30px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;font-size:.75rem;font-weight:700;
  background:rgba(10,20,24,.72);color:var(--amber);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.note-list{display:grid;gap:16px;margin-top:24px;}
.note-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:box-shadow .2s ease,transform .2s ease;}
.note-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-light);}
.note-item .bar{flex:0 0 4px;border-radius:3px;background:var(--coral);}
.note-item h4{font-size:1rem;font-weight:650;line-height:1.5;margin-bottom:6px;}
.note-item p{color:var(--muted);font-size:.9375rem;line-height:1.85;}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--ink-text);padding:64px 0;}
@media(min-width:1024px){.cta-band{padding:84px 0;}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 18%,rgba(18,185,140,.22),transparent 58%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;line-height:1.35;color:#fff;letter-spacing:-.01em;}
.cta-inner p{margin-top:12px;max-width:620px;color:rgba(232,242,238,.78);font-size:.9375rem;}
.cloud-line{position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(18,185,140,.55),transparent);z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--ink-text);padding:64px 0 28px;position:relative;}
.footer-cloud{
  height:1px;margin-bottom:44px;
  background:linear-gradient(90deg,transparent,rgba(18,185,140,.45),rgba(255,209,102,.28),transparent);
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:1.0625rem;font-weight:800;color:#fff;}
.footer-desc{margin-top:16px;max-width:360px;color:var(--ink-muted);font-size:.9375rem;line-height:1.85;}
.footer-col h4{
  font-size:.875rem;font-weight:700;letter-spacing:.1em;color:var(--brand);
  text-transform:uppercase;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col li{font-size:.9375rem;color:var(--ink-muted);}
.footer-col a{color:rgba(232,242,238,.82);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--ink-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:.8125rem;color:var(--ink-muted);
}
.footer-bottom a{color:var(--ink-muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;z-index:120;
  background:var(--ink);border-left:1px solid var(--ink-line);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--ink-line);}
.drawer-close{width:40px;height:40px;border-radius:11px;border:1px solid var(--ink-line);color:var(--ink-text);font-size:1.25rem;line-height:1;display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-links{display:grid;margin-top:12px;}
.drawer-links a{
  display:flex;align-items:center;min-height:48px;padding:0 4px;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:rgba(232,242,238,.84);font-size:.9375rem;
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--ink-line);}
.drawer-foot .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,14,16,.62);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

@media(max-width:1023px){
  .nav-links,.nav-search,.nav-cta{display:none;}
  .nav-burger{display:flex;}
}
@media(max-width:520px){
  .hero{padding:118px 0 62px;}
  .hero-actions .btn{width:100%;}
  .section{padding:48px 0;}
  .panel{padding:22px;}
  .step{padding-left:56px;}
  .faq .faq-body{padding-left:0;}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}