/* roulang page: index */
:root{
  --c-primary:#C6F24E;
  --c-primary-deep:#9FD222;
  --c-primary-soft:#EAF9C4;
  --c-ink:#14161B;
  --c-accent:#FF6F4E;
  --c-bg:#F5F6F1;
  --c-surface:#EDEFE7;
  --c-card:#FFFFFF;
  --c-text:#14161B;
  --c-text-2:#565B63;
  --c-text-3:#8A9099;
  --c-line:#E2E5DA;
  --c-light:#F7F8F2;
  --r-card:16px;
  --r-lg:24px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 8px 24px rgba(20,22,27,.06);
  --sh-2:0 14px 32px rgba(20,22,27,.10);
  --max:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
  --t:all .22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
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}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,textarea,select{font:inherit}
::selection{background:var(--c-primary);color:var(--c-ink)}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--surface{background:var(--c-surface)}
.section--ink{background:var(--c-ink);color:var(--c-light)}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(245,246,241,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,22,27,.08);
  box-shadow:0 2px 12px rgba(20,22,27,.04);
  transition:var(--t);
}
.site-header.is-scrolled{
  background:rgba(245,246,241,.94);
  box-shadow:0 6px 20px rgba(20,22,27,.08);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:72px;transition:var(--t);
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:22px;height:22px;border-radius:6px;background:var(--c-primary);
  position:relative;flex:0 0 auto;box-shadow:0 0 0 3px rgba(198,242,78,.22);
}
.brand-mark::after{
  content:"";position:absolute;inset:4px 5px;background:var(--c-ink);
  clip-path:polygon(58% 0,0 58%,42% 58%,38% 100%,100% 42%,58% 42%);
}
.brand-text{
  display:flex;align-items:baseline;gap:6px;
  font-size:18px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;
}
.brand-sub{font-size:12.5px;font-weight:600;color:var(--c-text-2);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:8px 14px;
  font-size:14.5px;font-weight:500;color:var(--c-text-2);
  border-radius:var(--r-pill);transition:var(--t);white-space:nowrap;
}
.nav-link:hover{color:var(--c-ink);background:rgba(20,22,27,.055)}
.nav-link.is-active{color:var(--c-ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--c-primary-deep);border-radius:2px;
}
.nav-link:focus-visible{outline:2px solid var(--c-primary-deep);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(20,22,27,.14);background:rgba(255,255,255,.5);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:var(--t);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:var(--t)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* Drawer */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);z-index:130;
  background:var(--c-ink);color:var(--c-light);
  padding:88px 24px 32px;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  box-shadow:-16px 0 40px rgba(20,22,27,.28);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer::before{
  content:"";position:absolute;top:24px;left:24px;width:22px;height:22px;
  border-radius:6px;background:var(--c-primary);
}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-top:8px}
.drawer-link{
  display:flex;align-items:center;gap:12px;height:52px;padding:0 14px;
  border-left:3px solid transparent;font-size:15.5px;color:rgba(247,248,242,.78);
  transition:var(--t);border-radius:0 10px 10px 0;
}
.drawer-link:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer-link.is-active{border-left-color:var(--c-primary);color:#fff;background:rgba(198,242,78,.10)}
.drawer-cta{margin-top:20px;width:100%}
.drawer-mask{
  position:fixed;inset:0;z-index:125;background:rgba(20,22,27,.45);
  opacity:0;visibility:hidden;transition:var(--t);backdrop-filter:blur(2px);
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:14px 28px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;transition:var(--t);white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:var(--c-ink);box-shadow:0 4px 14px rgba(198,242,78,.32)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:0 8px 22px rgba(159,210,34,.36)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px rgba(159,210,34,.3)}
.btn-outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-outline:hover{background:var(--c-ink);color:var(--c-light);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-light{background:transparent;border-color:rgba(247,248,242,.55);color:var(--c-light)}
.btn-light:hover{background:rgba(247,248,242,.13);border-color:var(--c-light)}
.btn-light:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--c-ink);
  border-bottom:2px solid var(--c-primary-deep);padding-bottom:2px;
  transition:var(--t);
}
.btn-text:hover{color:var(--c-primary-deep);gap:10px}
.btn:focus-visible,.btn-text:focus-visible{outline:2px solid var(--c-primary-deep);outline-offset:3px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none}
.nav-cta{padding:10px 22px;font-size:14.5px}

/* ============ BADGES / TAGS ============ */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 11px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.7;
  background:var(--c-primary-soft);color:#41530B;white-space:nowrap;
}
.badge--warn{background:rgba(255,111,78,.13);color:#B83A21}
.badge--ghost{background:rgba(20,22,27,.06);color:var(--c-text-2)}
.tag{
  display:inline-block;padding:2px 9px;border-radius:8px;
  font-size:12px;font-weight:500;color:var(--c-text-2);
  background:var(--c-surface);border:1px solid var(--c-line);
}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;background:var(--c-ink);color:var(--c-light);padding:150px 0 96px}
.hero-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(104deg,rgba(20,22,27,.94) 0%,rgba(20,22,27,.78) 52%,rgba(20,22,27,.58) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(to top,rgba(20,22,27,.85),transparent);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.32fr .95fr;gap:56px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.12);border:1px solid rgba(198,242,78,.4);
  color:var(--c-primary);font-size:12.5px;font-weight:600;letter-spacing:.02em;
  margin-bottom:22px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:inline-block}
.hero-title{
  font-size:clamp(34px,4.4vw,56px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;color:#fff;
}
.hero-title em{font-style:normal;color:var(--c-primary);display:block}
.hero-sub{
  margin-top:20px;max-width:560px;
  font-size:16.5px;line-height:1.85;color:rgba(247,248,242,.78);
}
.hero-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.hero-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:rgba(247,248,242,.9);
}
.hero-points li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:4px;border-radius:50%;
  background:var(--c-primary);
  -webkit-mask:radial-gradient(circle at 50% 50%,transparent 0 3px,#000 3px) center/100% 100%;
  background-image:none;
  position:relative;
}
.hero-points li::before{
  background:rgba(198,242,78,.18);
  border:1px solid rgba(198,242,78,.55);
  box-shadow:inset 0 0 0 3px rgba(20,22,27,0);
}
.hero-points li .tick{
  flex:0 0 auto;width:18px;height:18px;margin-top:4px;border-radius:50%;
  background:var(--c-primary);position:relative;
}
.hero-points li .tick::after{
  content:"";position:absolute;left:5px;top:5px;width:8px;height:4px;
  border-left:2px solid var(--c-ink);border-bottom:2px solid var(--c-ink);
  transform:rotate(-45deg);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-card{
  background:var(--c-card);color:var(--c-text);
  border-radius:var(--r-lg);padding:26px;
  box-shadow:0 24px 60px rgba(0,0,0,.34);
  position:relative;
}
.hero-card::before{
  content:"";position:absolute;top:-10px;left:26px;width:44px;height:10px;
  background:var(--c-primary);border-radius:6px 6px 0 0;
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.hero-card-title{font-size:17px;font-weight:700}
.hero-card-note{font-size:12.5px;color:var(--c-text-3)}
.hero-card-rows{margin-top:16px;border-top:1px solid var(--c-line)}
.hero-card-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 0;border-bottom:1px solid var(--c-line);font-size:14px;
}
.hero-card-row span:first-child{color:var(--c-text-2)}
.hero-card-row span:last-child{font-weight:600;color:var(--c-ink);font-variant-numeric:tabular-nums}
.hero-card-foot{margin-top:18px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--c-text-3);line-height:1.7}

/* ============ SECTION HEAD ============ */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:44px;flex-wrap:wrap;
}
.section-head-main{max-width:640px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--c-text-3);text-transform:uppercase;margin-bottom:12px;
}
.section-kicker::before{content:"";width:22px;height:2px;background:var(--c-primary-deep);border-radius:2px}
.section-title{font-size:clamp(24px,2.8vw,32px);font-weight:800;letter-spacing:-.02em}
.section-lead{margin-top:14px;font-size:15.5px;color:var(--c-text-2);line-height:1.85}

/* ============ STEPS ============ */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);transition:var(--t);
  display:flex;flex-direction:column;position:relative;overflow:hidden;
}
.step-card:hover{transform:translateY(-3px);border-color:var(--c-primary-deep);box-shadow:var(--sh-2)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:14px;
  border:1.5px solid var(--c-primary-deep);color:var(--c-ink);
  font-size:21px;font-weight:800;font-variant-numeric:tabular-nums;
  margin-bottom:20px;background:var(--c-primary-soft);
}
.step-card h3{font-size:19px;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;flex:1}
.step-link{margin-top:18px;font-size:14px;font-weight:600;color:var(--c-ink);display:inline-flex;gap:6px;align-items:center;transition:var(--t)}
.step-link:hover{color:var(--c-primary-deep);gap:10px}

/* ============ CHANNEL LIST ============ */
.channel-list{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.channel-row{
  display:grid;grid-template-columns:56px 1.05fr 1.6fr auto;
  align-items:center;gap:22px;
  padding:22px 26px;border-bottom:1px solid var(--c-line);
  transition:var(--t);
}
.channel-row:last-child{border-bottom:0}
.channel-row:hover{background:var(--c-surface)}
.channel-index{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid var(--c-primary-deep);color:var(--c-ink);font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;background:var(--c-primary-soft);
}
.channel-name{font-size:17px;font-weight:700}
.channel-name small{display:block;font-size:12.5px;font-weight:500;color:var(--c-text-3);margin-top:3px}
.channel-desc{font-size:14px;color:var(--c-text-2);line-height:1.75}
.channel-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.channel-action{justify-self:end}
.channel-action .btn{padding:10px 22px;font-size:14px}

/* ============ PROOF / STATS ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:34px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  margin-bottom:64px;
}
.stat-item{text-align:left}
.stat-num{
  font-size:clamp(30px,3.4vw,44px);font-weight:800;color:var(--c-ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1;
}
.stat-num span{font-size:.55em;font-weight:700;margin-left:2px;color:var(--c-text-2)}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--c-text-2)}

.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  margin-bottom:56px;
}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  box-shadow:var(--sh-1);border:1px solid var(--c-line);background:var(--c-surface);
  aspect-ratio:16/11;
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-body h3{font-size:23px;margin-bottom:14px;letter-spacing:-.02em}
.feature-body p{font-size:15.5px;color:var(--c-text-2);line-height:1.9}
.feature-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.feature-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text);
  padding:12px 16px;background:var(--c-card);border:1px solid var(--c-line);border-radius:12px;
  transition:var(--t);
}
.feature-list li:hover{border-color:var(--c-primary-deep);box-shadow:var(--sh-1)}
.feature-list li b{font-weight:700}
.feature-list .dot{
  flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--c-primary-deep);
  margin-top:9px;transform:rotate(45deg);
}

/* ============ NEWS ============ */
.news-section{background:var(--c-bg)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:var(--t);display:flex;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--c-primary-deep);box-shadow:var(--sh-2)}
.news-link{display:flex;flex-direction:column;width:100%}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface);position:relative}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-body .badge{align-self:flex-start;margin-bottom:12px}
.news-title{
  font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:3em;
}
.news-excerpt{
  margin-top:10px;font-size:14px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--c-text-3);border-top:1px solid var(--c-line);margin-top:18px;
  font-variant-numeric:tabular-nums;
}
.news-more{font-weight:600;color:var(--c-ink);transition:var(--t)}
.news-card:hover .news-more{color:var(--c-primary-deep)}

.empty-state{
  grid-column:1/-1;min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-card);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:44px 24px;text-align:center;
}
.empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;
}
.empty-icon::after{
  content:"";width:20px;height:20px;border:2px solid var(--c-text-3);border-radius:4px;
}
.empty-state p{font-size:14.5px;color:var(--c-text-2)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:var(--t);position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary-deep);transform:scaleY(0);transform-origin:top;transition:transform .24s var(--ease);
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item[open]{border-color:var(--c-primary-deep);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-ink);transition:var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--c-surface)}
.faq-item summary:focus-visible{outline:2px solid var(--c-primary-deep);outline-offset:-4px}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--c-line);position:relative;transition:var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ink);border-radius:2px;
  transform:translate(-50%,-50%);transition:var(--t);
}
.faq-icon::before{width:11px;height:1.8px}
.faq-icon::after{width:1.8px;height:11px}
.faq-item[open] .faq-icon{background:var(--c-primary);border-color:var(--c-primary)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-foot{margin-top:26px;text-align:center;font-size:14.5px;color:var(--c-text-2)}

/* ============ CTA BAND ============ */
.cta-band{position:relative;overflow:hidden;background:var(--c-ink);color:var(--c-light);padding:76px 0}
.cta-band::before{
  content:"";position:absolute;top:-60px;right:-80px;width:320px;height:320px;
  background:var(--c-primary);opacity:.14;transform:rotate(18deg);border-radius:28px;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:8px;
  background:repeating-linear-gradient(115deg,var(--c-primary) 0 26px,transparent 26px 52px);
  opacity:.85;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);font-weight:800;letter-spacing:-.02em;color:#fff}
.cta-copy p{margin-top:14px;font-size:15.5px;color:rgba(247,248,242,.75);line-height:1.85}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ FOOTER ============ */
.site-footer{background:var(--c-ink);color:rgba(247,248,242,.72);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-sub{color:rgba(247,248,242,.6)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,248,242,.62);max-width:340px}
.footer-col h4{font-size:14px;color:var(--c-primary);font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(247,248,242,.68);transition:var(--t);display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-links a:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:3px}
.footer-note{font-size:13px;line-height:1.8;color:rgba(247,248,242,.55)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:24px 0;font-size:13px;color:rgba(247,248,242,.5);
}
.footer-bottom .dot-sep{opacity:.4;margin:0 8px}

/* ============ RESPONSIVE ============ */
@media (max-width:1279px){
  .hero-inner{grid-template-columns:1.25fr .95fr;gap:40px}
  .feature-row{gap:40px}
}
@media (max-width:1024px){
  .nav-links,.nav-cta.desk-only{display:none}
  .nav-toggle{display:flex}
  .hero{padding:132px 0 78px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-card{max-width:520px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px;margin-bottom:52px}
  .feature-row{grid-template-columns:1fr;gap:26px;margin-bottom:44px}
  .feature-row.reverse .feature-media{order:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .channel-row{grid-template-columns:48px 1fr auto;row-gap:12px}
  .channel-desc{grid-column:2/4}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero{padding:118px 0 64px}
  .hero-title{font-size:clamp(30px,8vw,40px)}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%;min-height:48px}
  .hero-card{padding:20px}
  .section-head{margin-bottom:30px;gap:16px}
  .steps-grid{grid-template-columns:1fr}
  .step-card{padding:22px 20px}
  .stats{grid-template-columns:1fr;gap:22px;padding:26px 0}
  .feature-media{aspect-ratio:16/10}
  .feature-body h3{font-size:20px}
  .news-grid{grid-template-columns:1fr}
  .news-body{padding:20px}
  .channel-row{grid-template-columns:42px 1fr;gap:14px;padding:20px}
  .channel-desc{grid-column:1/-1}
  .channel-action{justify-self:start;grid-column:1/-1;margin-top:4px}
  .channel-action .btn{width:100%}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 18px;font-size:14.5px}
  .cta-band{padding:52px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%;min-height:48px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:480px){
  .brand-text{font-size:16px}
  .brand-sub{display:none}
  .hero-title{font-size:28px}
  .stat-num{font-size:32px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --c-primary:#C6F24E;
  --c-primary-deep:#9FD222;
  --c-primary-soft:#EAF9C4;
  --c-ink:#14161B;
  --c-accent:#FF6F4E;
  --c-bg:#F5F6F1;
  --c-surface:#EDEFE7;
  --c-card:#FFFFFF;
  --c-text:#14161B;
  --c-text-2:#565B63;
  --c-text-3:#8A9099;
  --c-f7:#F7F8F2;
  --c-line:#E2E5DA;
  --r-card:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 8px 24px rgba(20,22,27,.06);
  --shadow-2:0 14px 32px rgba(20,22,27,.10);
  --container:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(245,246,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,22,27,.08);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(245,246,241,.95);box-shadow:0 6px 20px rgba(20,22,27,.08)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .24s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap}
.brand-mark{
  position:relative;width:26px;height:26px;border-radius:8px;background:var(--c-ink);flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.brand-mark::after{
  content:"";position:absolute;inset:0;margin:auto;width:9px;height:15px;background:var(--c-primary);
  clip-path:polygon(62% 0,0 58%,44% 58%,38% 100%,100% 42%,56% 42%);
}
.brand-sub{color:var(--c-text-2);font-weight:600;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:var(--r-pill);
  font-size:15px;color:var(--c-text-2);
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:var(--c-ink);background:rgba(20,22,27,.055)}
.nav-link.is-active{color:var(--c-ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;font-size:15px;line-height:1;
  padding:14px 28px;border:1.5px solid transparent;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:var(--c-ink);box-shadow:0 6px 16px rgba(159,210,34,.28)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:var(--c-f7)}
.btn-ghost:active{transform:translateY(1px)}
.btn-line{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn-line:hover{border-color:var(--c-ink);background:var(--c-surface)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:rgba(255,255,255,.6);align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,27,.45);z-index:190;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:200;
  background:var(--c-ink);color:var(--c-f7);padding:24px;
  transform:translateX(102%);transition:transform .3s var(--ease);
  visibility:hidden;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-primary);letter-spacing:.02em}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.2);color:var(--c-f7);font-size:18px;line-height:1}
.drawer a.drawer-link{
  display:block;padding:15px 10px;font-size:16px;color:rgba(247,248,242,.82);
  border-bottom:1px solid rgba(255,255,255,.1);border-radius:8px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer a.drawer-link:hover{background:rgba(255,255,255,.07);color:#fff}
.drawer a.drawer-link.is-active{color:var(--c-primary);border-left:3px solid var(--c-primary);padding-left:14px;font-weight:700}
.drawer-cta{margin-top:24px}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:96px 0 18px;
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:12.5px;color:var(--c-text-3);line-height:1.6}
.breadcrumb li{display:flex;align-items:center;gap:6px;min-width:0}
.breadcrumb a{color:var(--c-text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--c-ink)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{
  color:var(--c-ink);font-weight:600;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(62vw,520px);display:inline-block;
}

/* ============ 文章主体 ============ */
.article-section{padding:44px 0 72px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:56px;align-items:start}
.article-main{min-width:0}
.article-head{margin-bottom:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:#3F4A16;
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.badge-accent{background:rgba(255,111,78,.12);color:#C6401F}
.article-title{
  font-size:clamp(26px,2.8vw,36px);font-weight:800;line-height:1.36;
  letter-spacing:-.01em;margin:16px 0 18px;color:var(--c-ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;
  font-size:14px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}
.article-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block}
.article-cover{margin:26px 0 32px;border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);box-shadow:var(--shadow-1)}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.prose{font-size:16px;line-height:1.9;color:#2A2D33;word-wrap:break-word;overflow-wrap:break-word}
.prose p{margin:0 0 1.2em}
.prose h2{
  font-size:clamp(20px,2.2vw,25px);font-weight:800;line-height:1.5;color:var(--c-ink);
  margin:44px 0 16px;padding-left:14px;border-left:3px solid var(--c-primary);
}
.prose h3{font-size:18px;font-weight:700;line-height:1.6;color:var(--c-ink);margin:32px 0 12px}
.prose h4{font-size:16px;font-weight:700;margin:24px 0 10px}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.2em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:8px}
.prose strong{color:var(--c-ink);font-weight:700}
.prose a{color:var(--c-ink);border-bottom:2px solid var(--c-primary);transition:background .2s var(--ease)}
.prose a:hover{background:var(--c-primary-soft)}
.prose blockquote{
  margin:22px 0;padding:16px 20px;background:var(--c-surface);
  border-left:3px solid var(--c-ink);border-radius:0 12px 12px 0;
  color:var(--c-text-2);font-size:15px;line-height:1.85;
}
.prose img{width:100%;height:auto;border-radius:12px;margin:16px 0}
.prose figure{margin:20px 0}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;vertical-align:top}
.prose thead th{background:var(--c-surface);font-weight:700;color:var(--c-ink)}
.prose tbody tr:nth-child(even){background:#FAFBF7}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}
.prose code{background:var(--c-surface);padding:2px 6px;border-radius:6px;font-size:14px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 0;padding-top:24px;border-top:1px solid var(--c-line)}
.tag{
  display:inline-block;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-surface);color:var(--c-text-2);font-size:13px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--c-primary-soft);color:#3F4A16}

/* 空态 */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  text-align:center;background:var(--c-card);border:1px dashed var(--c-line);
  border-radius:var(--r-card);padding:36px 24px;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--c-text-3);
}
.empty-state p{color:var(--c-text-2);font-size:15px;line-height:1.8;max-width:420px}

/* 侧栏目录 */
.article-side{position:sticky;top:92px}
.toc-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--c-text-3);
  text-transform:uppercase;margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--c-text-2);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{background:var(--c-surface);color:var(--c-ink)}
.toc-list a.is-sub{padding-left:22px;font-size:13px;color:var(--c-text-3)}
.toc-list a.is-current{border-left-color:var(--c-primary);color:var(--c-ink);font-weight:700;background:var(--c-surface)}
.toc-empty{font-size:13.5px;color:var(--c-text-3);line-height:1.7}

/* 相关推荐 */
.related-section{padding:0 0 76px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{font-size:clamp(21px,2.3vw,27px);font-weight:800;letter-spacing:-.01em;color:var(--c-ink);line-height:1.4}
.section-sub{font-size:14.5px;color:var(--c-text-2);margin-top:6px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;color:var(--c-ink);
  border-bottom:2px solid var(--c-primary);padding-bottom:2px;
  transition:gap .2s var(--ease);
}
.link-more:hover{gap:12px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-2)}
.info-card .badge{align-self:flex-start;margin-bottom:14px}
.info-card h3{font-size:17px;font-weight:700;line-height:1.55;color:var(--c-ink);margin-bottom:10px}
.info-card p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-card .card-foot{margin-top:auto}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-ink)}
.text-link span{transition:transform .2s var(--ease)}
.text-link:hover span{transform:translateX(4px)}
.back-row{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}

/* CTA 通栏 */
.cta-section{background:var(--c-ink);color:var(--c-f7);padding:76px 0;position:relative;overflow:hidden}
.cta-section::before{
  content:"";position:absolute;top:-70px;left:-80px;width:360px;height:150px;
  background:var(--c-primary);opacity:.16;transform:skewY(-8deg);border-radius:28px;
}
.cta-section::after{
  content:"";position:absolute;bottom:-90px;right:-70px;width:300px;height:150px;
  background:var(--c-primary);opacity:.1;transform:skewY(-8deg);border-radius:28px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-text{max-width:600px}
.cta-text h2{font-size:clamp(23px,2.6vw,32px);font-weight:800;line-height:1.4;letter-spacing:-.01em;margin-bottom:12px;color:#fff}
.cta-text p{font-size:15px;line-height:1.85;color:rgba(247,248,242,.72)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-section .btn-ghost{color:var(--c-f7);border-color:rgba(247,248,242,.45)}
.cta-section .btn-ghost:hover{background:var(--c-f7);color:var(--c-ink);border-color:var(--c-f7)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-f7);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px 32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,248,242,.62);max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;color:var(--c-primary);letter-spacing:.02em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(247,248,242,.7);transition:color .2s var(--ease)}
.footer-links a:hover{color:#fff}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(247,248,242,.58)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,248,242,.5);font-variant-numeric:tabular-nums;
}
.dot-sep{margin:0 8px;color:rgba(247,248,242,.35)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none}
  .header-actions .btn{display:none}
  .menu-toggle{display:flex}
  .header-inner{gap:14px}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .article-side{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
  .breadcrumb-bar{padding-top:88px}
  .article-section{padding:36px 0 60px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:62px}
  .brand{font-size:15.5px}
  .brand-mark{width:23px;height:23px;border-radius:7px}
  .brand-mark::after{width:8px;height:13px}
  .breadcrumb-bar{padding:80px 0 14px}
  .breadcrumb .current{max-width:56vw}
  .article-section{padding:30px 0 52px}
  .article-title{font-size:23px;line-height:1.42;margin:14px 0 14px}
  .article-cover{margin:20px 0 26px}
  .prose{font-size:15.5px;line-height:1.85}
  .prose h2{font-size:19px;margin:34px 0 14px;padding-left:12px}
  .prose h3{font-size:17px;margin:26px 0 10px}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .related-section{padding-bottom:56px}
  .section-head{margin-bottom:20px}
  .btn{width:100%;min-height:48px}
  .back-row .btn{width:100%}
  .cta-section{padding:56px 0}
  .cta-actions{width:100%;flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .tag-row{gap:8px}
}
@media (max-width:479px){
  .article-title{font-size:21px}
  .brand-sub{display:none}
  .drawer{width:88vw}
}

/* roulang page: category1 */
:root{
  --c-primary:#C6F24E;
  --c-primary-deep:#9FD222;
  --c-primary-soft:#EAF9C4;
  --c-ink:#14161B;
  --c-accent:#FF6F4E;
  --c-bg:#F5F6F1;
  --c-surface:#EDEFE7;
  --c-card:#FFFFFF;
  --c-text:#14161B;
  --c-text-2:#565B63;
  --c-text-3:#8A9099;
  --c-line:#E2E5DA;
  --c-line-dark:rgba(255,255,255,.12);
  --radius-card:16px;
  --radius-block:24px;
  --radius-pill:999px;
  --radius-input:12px;
  --shadow-sm:0 8px 24px rgba(20,22,27,.06);
  --shadow-md:0 14px 32px rgba(20,22,27,.10);
  --shadow-nav:0 6px 20px rgba(20,22,27,.08);
  --space-section:88px;
  --ease:all .22s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--space-section) 0}
.section--surface{background:var(--c-surface)}
.section--tight{padding:64px 0}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  background:rgba(245,246,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,22,27,.08);
  box-shadow:0 6px 20px rgba(20,22,27,.05);
  transition:var(--ease);
}
.site-header.is-scrolled{
  background:rgba(245,246,241,.94);
  box-shadow:var(--shadow-nav);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:var(--ease);
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
  color:var(--c-ink);
  flex:none;
}
.brand-mark{
  width:24px;height:24px;
  border-radius:7px;
  background:var(--c-ink);
  position:relative;
  flex:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:0;margin:auto;
  width:11px;height:15px;
  background:var(--c-primary);
  clip-path:polygon(55% 0,0 58%,42% 58%,32% 100%,100% 40%,52% 40%);
}
.brand-sub{
  color:var(--c-primary-deep);
  font-weight:700;
  margin-left:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  justify-content:center;
}
.nav-link{
  position:relative;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
  transition:var(--ease);
}
.nav-link:hover{color:var(--c-ink);background:rgba(20,22,27,.05)}
.nav-link.is-active{color:var(--c-ink);font-weight:700}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary-deep);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:40px;height:40px;
  border-radius:50%;
  border:1.5px solid rgba(20,22,27,.18);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-ink);
  transition:var(--ease);
}
.icon-btn:hover{border-color:var(--c-ink);background:#fff;box-shadow:var(--shadow-sm)}
.icon-btn svg{width:17px;height:17px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1.5px solid rgba(20,22,27,.18);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--c-ink);
  transition:var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:84%;
  max-width:320px;
  background:var(--c-ink);
  color:#F7F8F2;
  z-index:130;
  transform:translateX(100%);
  transition:transform .28s cubic-bezier(.4,0,.2,1);
  padding:84px 20px 32px;
  display:flex;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 14px;
  border-radius:12px;
  font-size:16px;
  color:rgba(247,248,242,.82);
  border-left:3px solid transparent;
  transition:var(--ease);
}
.nav-drawer a:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-drawer a.is-active{
  color:var(--c-primary);
  border-left-color:var(--c-primary);
  background:rgba(198,242,78,.08);
  font-weight:700;
}
.drawer-close{
  position:absolute;
  top:18px;right:18px;
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.25);
  color:#F7F8F2;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  line-height:1;
}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(20,22,27,.45);
  opacity:0;
  visibility:hidden;
  transition:var(--ease);
  z-index:125;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:var(--ease);
  border:1.5px solid transparent;
  cursor:pointer;
}
.btn-primary{
  background:var(--c-primary);
  color:var(--c-ink);
}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  border-color:rgba(20,22,27,.55);
  color:var(--c-ink);
}
.btn-ghost:hover{background:var(--c-ink);color:#F7F8F2;border-color:var(--c-ink);transform:translateY(-1px)}
.btn-light{
  background:transparent;
  border-color:rgba(255,255,255,.45);
  color:#F7F8F2;
}
.btn-light:hover{background:rgba(255,255,255,.12);border-color:#F7F8F2;transform:translateY(-1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- 徽章/标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.01em;
}
.badge-soft{background:var(--c-primary-soft);color:#4B5A18}
.badge-warn{background:rgba(255,111,78,.13);color:#C2411F}
.badge-ink{background:rgba(255,255,255,.14);color:#F7F8F2}
.tag-group{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 8px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  font-size:12.5px;
  background:var(--c-primary-soft);
  color:#4B5A18;
  font-weight:600;
}
.tag--warn{background:rgba(255,111,78,.12);color:#C2411F}
.tag--line{background:transparent;border:1px solid var(--c-line);color:var(--c-text-2);font-weight:500}

/* ---------- Hero ---------- */
.page-hero{
  padding:132px 0 72px;
  background:linear-gradient(180deg,#F0F2E9 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:48px;
  align-items:center;
}
.breadcrumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--c-text-3);
  margin-bottom:18px;
}
.breadcrumbs a{color:var(--c-text-3);transition:var(--ease)}
.breadcrumbs a:hover{color:var(--c-ink)}
.breadcrumbs .current{color:var(--c-ink);font-weight:600}
.page-hero h1{
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  margin:14px 0 16px;
}
.hero-lead{
  font-size:17px;
  color:var(--c-text-2);
  max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:26px;
  font-size:14px;
  color:var(--c-text-2);
}
.hero-points li{
  position:relative;
  padding-left:22px;
}
.hero-points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:12px;height:7px;
  border-left:2px solid var(--c-primary-deep);
  border-bottom:2px solid var(--c-primary-deep);
  transform:rotate(-45deg);
}
.hero-media{
  position:relative;
  border-radius:var(--radius-block);
  overflow:hidden;
  background:var(--c-ink);
  box-shadow:var(--shadow-md);
  border:1px solid rgba(20,22,27,.08);
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  opacity:.92;
}
.hero-media figcaption{
  position:absolute;
  left:16px;right:16px;bottom:14px;
  font-size:12.5px;
  color:#F7F8F2;
  background:rgba(20,22,27,.62);
  border-radius:10px;
  padding:8px 12px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}

/* ---------- 板块标题 ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--c-primary-deep);
  text-transform:uppercase;
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(23px,2.4vw,30px);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
}
.section-note{
  max-width:420px;
  font-size:14.5px;
  color:var(--c-text-2);
}

/* ---------- 渠道清单 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.channel-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.channel-row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) auto;
  gap:18px;
  align-items:start;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.channel-row:hover{
  transform:translateY(-2px);
  border-color:var(--c-primary);
  box-shadow:var(--shadow-md);
}
.row-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  border:1.5px solid var(--c-primary-deep);
  color:var(--c-ink);
  font-weight:800;
  font-size:16px;
  font-variant-numeric:tabular-nums;
  background:rgba(198,242,78,.16);
}
.channel-row h3{
  font-size:18px;
  font-weight:700;
  line-height:1.5;
}
.channel-row p{
  font-size:14.5px;
  color:var(--c-text-2);
}
.row-action{align-self:center}
.side-card{
  position:sticky;
  top:96px;
  background:var(--c-ink);
  color:#F7F8F2;
  border-radius:var(--radius-block);
  padding:30px 26px;
  box-shadow:var(--shadow-md);
}
.side-card h3{
  font-size:19px;
  font-weight:800;
  margin-bottom:8px;
}
.side-card .side-desc{
  font-size:14px;
  color:rgba(247,248,242,.72);
  margin-bottom:20px;
}
.side-list{display:flex;flex-direction:column;gap:14px;margin:0 0 24px}
.side-list li{
  display:grid;
  grid-template-columns:22px minmax(0,1fr);
  gap:10px;
  font-size:14px;
  color:rgba(247,248,242,.86);
  line-height:1.7;
}
.side-list li::before{
  content:"";
  width:12px;height:7px;
  margin-top:9px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.side-divider{
  height:1px;
  background:var(--c-line-dark);
  margin:0 0 20px;
}
.side-meta{
  font-size:12.5px;
  color:rgba(247,248,242,.6);
  margin-top:14px;
}

/* ---------- 对比说明卡 ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.compare-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-block);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
  display:flex;
  flex-direction:column;
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--c-primary)}
.compare-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.compare-body{padding:24px}
.compare-body h3{
  font-size:19px;
  font-weight:800;
  margin-bottom:6px;
}
.compare-body > p{font-size:14.5px;color:var(--c-text-2)}
.mini-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:18px;
  border-top:1px solid var(--c-line);
  padding-top:16px;
}
.mini-list li{
  display:grid;
  grid-template-columns:20px minmax(0,1fr);
  gap:10px;
  font-size:14px;
  color:var(--c-text-2);
  line-height:1.7;
}
.mini-list li .dot{
  width:8px;height:8px;
  border-radius:50%;
  margin-top:9px;
  background:var(--c-primary-deep);
}
.compare-card--warn .mini-list li .dot{background:var(--c-accent)}

/* ---------- 三点确认 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.check-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.check-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-md)}
.check-index{
  font-size:34px;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px var(--c-primary-deep);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.check-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.check-card p{font-size:14.5px;color:var(--c-text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-left:3px solid transparent;
  border-radius:var(--radius-card);
  padding:0 22px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.faq-item:hover{border-color:var(--c-primary);border-left-color:var(--c-primary)}
.faq-item[open]{border-left-color:var(--c-primary)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  border:1.5px solid var(--c-line);
  position:relative;
  transition:var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  inset:0;margin:auto;
  background:var(--c-ink);
  border-radius:2px;
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:var(--ease)}
.faq-item[open] .faq-icon{border-color:var(--c-primary-deep);background:rgba(198,242,78,.2)}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  border-top:1px solid var(--c-line);
  margin-top:-2px;
  padding-top:16px;
}
.faq-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:24px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-ink);
  border-bottom:2px solid var(--c-primary);
  padding-bottom:2px;
  transition:var(--ease);
}
.faq-more:hover{border-bottom-color:var(--c-ink)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--c-ink);
  color:#F7F8F2;
  border-radius:var(--radius-block);
  padding:56px 56px;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:36px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60px;right:120px;
  width:220px;height:220px;
  background:var(--c-primary);
  opacity:.16;
  transform:rotate(-8deg);
  border-radius:28px;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:5px;width:38%;
  background:var(--c-primary);
  transform:skewX(-8deg);
  transform-origin:left bottom;
}
.cta-band h2{
  font-size:clamp(23px,2.4vw,30px);
  font-weight:800;
  line-height:1.35;
  margin-bottom:10px;
  position:relative;
}
.cta-band p{
  font-size:15px;
  color:rgba(247,248,242,.78);
  max-width:560px;
  position:relative;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  position:relative;
  z-index:1;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#F7F8F2;
  padding:64px 0 0;
  margin-top:var(--space-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px 32px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-brand .brand-sub{color:var(--c-primary)}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(247,248,242,.68);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--c-primary);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:14px;
  color:rgba(247,248,242,.7);
  transition:var(--ease);
  width:fit-content;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-note{
  font-size:13px;
  line-height:1.85;
  color:rgba(247,248,242,.6);
}
.footer-bottom{
  border-top:1px solid var(--c-line-dark);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:rgba(247,248,242,.55);
}
.dot-sep{margin:0 8px;opacity:.6}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero-grid{gap:36px}
}
@media (max-width:1023px){
  :root{--space-section:64px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .icon-btn{display:none}
  .nav-inner{height:64px}
  .page-hero{padding:112px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{max-width:560px}
  .split{grid-template-columns:1fr}
  .side-card{position:static;top:auto}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:44px 36px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-desc{max-width:none}
}
@media (max-width:767px){
  :root{--space-section:56px}
  .container{padding:0 16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .page-hero{padding:100px 0 48px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%;min-height:48px}
  .channel-row{
    grid-template-columns:44px minmax(0,1fr);
    padding:20px;
    gap:14px;
  }
  .row-num{width:38px;height:38px;font-size:15px;border-radius:10px}
  .row-action{grid-column:1 / -1}
  .row-action .btn{width:100%;min-height:46px}
  .compare-grid{grid-template-columns:1fr}
  .compare-body{padding:20px}
  .check-grid{grid-template-columns:1fr}
  .check-card{padding:22px 20px}
  .faq-item{padding:0 18px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .faq-answer{font-size:14.5px}
  .cta-band{padding:36px 24px;border-radius:var(--radius-card)}
  .cta-actions .btn{width:100%;min-height:48px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px}
  .footer-bottom{flex-direction:column}
  .site-footer{padding-top:48px}
}
@media (max-width:479px){
  .hero-points{flex-direction:column;gap:8px}
  .brand{font-size:16px}
  .channel-row h3{font-size:17px}
  .check-index{font-size:28px}
}

/* roulang page: category2 */
:root{
  --c-primary:#C6F24E;
  --c-primary-deep:#9FD222;
  --c-primary-soft:#EAF9C4;
  --c-ink:#14161B;
  --c-accent:#FF6F4E;
  --c-bg:#F5F6F1;
  --c-surface:#EDEFE7;
  --c-card:#FFFFFF;
  --c-text:#14161B;
  --c-text-2:#565B63;
  --c-text-3:#8A9099;
  --c-line:#E2E5DA;
  --c-reverse:#F7F8F2;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:999px;
  --r-input:12px;
  --sh-1:0 8px 24px rgba(20,22,27,.06);
  --sh-2:0 14px 32px rgba(20,22,27,.10);
  --t:all .22s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em;font-weight:800;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:var(--t);}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;transition:var(--t);}
input,textarea,select{font:inherit;color:inherit;}
time{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1.5px solid transparent;transition:var(--t);white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:var(--c-ink);border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(159,210,34,.35);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-outline{background:transparent;color:var(--c-ink);border-color:var(--c-ink);}
.btn-outline:hover{background:var(--c-ink);color:var(--c-reverse);}
.btn-outline:active{transform:translateY(1px);}
.btn-light-outline{background:transparent;color:var(--c-reverse);border-color:rgba(247,248,242,.6);}
.btn-light-outline:hover{background:var(--c-reverse);color:var(--c-ink);border-color:var(--c-reverse);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;
  color:var(--c-ink);position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:100%;
  background:var(--c-primary);transform:scaleX(.35);transform-origin:left;transition:var(--t);
}
.link-arrow:hover::after{transform:scaleX(1);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(245,246,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,22,27,.08);
  transition:var(--t);
}
.site-header.is-scrolled{
  background:rgba(245,246,241,.94);
  box-shadow:0 6px 20px rgba(20,22,27,.08);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;transition:var(--t);
}
.site-header.is-scrolled .nav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:14px;height:14px;border-radius:3px;background:var(--c-primary);
  box-shadow:0 0 0 3px rgba(198,242,78,.28);transform:skewX(-12deg);flex-shrink:0;
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);}
.brand-sub{font-weight:600;font-size:15px;color:var(--c-text-2);margin-left:2px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:8px;
  font-size:14.5px;font-weight:600;color:var(--c-text-2);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:var(--t);
}
.nav-link:hover{color:var(--c-ink);background:rgba(20,22,27,.04);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-ink);font-weight:800;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(20,22,27,.16);align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);z-index:200;
  background:var(--c-ink);color:var(--c-reverse);
  padding:84px 20px 32px;transform:translateX(105%);
  transition:transform .26s cubic-bezier(.4,0,.2,1);
  box-shadow:-16px 0 40px rgba(20,22,27,.28);overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-link{
  display:flex;align-items:center;min-height:52px;padding:0 14px;
  font-size:15.5px;font-weight:600;color:rgba(247,248,242,.78);
  border-radius:10px;border-left:3px solid transparent;
}
.drawer-link:hover{background:rgba(247,248,242,.08);color:var(--c-reverse);}
.drawer-link.is-active{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(198,242,78,.08);}
.drawer-close{
  position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(247,248,242,.3);color:var(--c-reverse);font-size:20px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:rgba(247,248,242,.12);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,27,.5);z-index:150;
  opacity:0;visibility:hidden;transition:var(--t);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;padding:148px 0 84px;color:var(--c-reverse);
  background:
    linear-gradient(100deg,rgba(20,22,27,.9) 0%,rgba(20,22,27,.78) 52%,rgba(20,22,27,.62) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:-8%;right:-8%;bottom:-28px;height:56px;
  background:var(--c-bg);transform:rotate(-2deg);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(247,248,242,.62);margin-bottom:26px;
}
.breadcrumb a{color:rgba(247,248,242,.62);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:rgba(247,248,242,.35);}
.breadcrumb .current{color:var(--c-reverse);font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-btn);
  background:rgba(198,242,78,.16);color:var(--c-primary);
  border:1px solid rgba(198,242,78,.4);
  font-size:12.5px;font-weight:700;letter-spacing:.04em;margin-bottom:20px;
}
.hero-badge::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.page-hero h1{
  font-size:clamp(28px,3.2vw,42px);color:var(--c-reverse);
  margin-bottom:18px;letter-spacing:-.02em;
}
.hero-sub{
  font-size:16.5px;line-height:1.85;color:rgba(247,248,242,.8);
  max-width:560px;margin-bottom:24px;
}
.hero-points{display:grid;gap:10px;margin-bottom:30px;}
.hero-points li{
  position:relative;padding-left:26px;font-size:15px;color:rgba(247,248,242,.86);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;border-radius:var(--r-lg);border:1px solid rgba(247,248,242,.2);
  box-shadow:0 24px 48px rgba(0,0,0,.34);object-fit:cover;aspect-ratio:4/3;background:#22252c;
}
.hero-meter{
  margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
  background:rgba(247,248,242,.08);border:1px solid rgba(247,248,242,.18);
  border-radius:14px;padding:14px 16px;
}
.hero-meter > div{text-align:center;}
.meter-num{
  display:block;font-size:24px;font-weight:800;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.meter-label{display:block;font-size:12px;color:rgba(247,248,242,.68);margin-top:4px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-surface{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.14em;
  color:var(--c-text-2);text-transform:uppercase;margin-bottom:14px;
  padding-left:14px;position:relative;
}
.eyebrow::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:16px;background:var(--c-primary);border-radius:3px;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.section-head p{font-size:15.5px;color:var(--c-text-2);line-height:1.85;}

/* ============ 流程时间轴 ============ */
.timeline{position:relative;max-width:900px;}
.timeline::before{
  content:"";position:absolute;left:27px;top:20px;bottom:24px;width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,rgba(198,242,78,.15) 100%);
}
.timeline-item{
  position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;
  padding-bottom:26px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-num{
  width:56px;height:56px;border-radius:50%;
  border:2px solid var(--c-primary);background:var(--c-card);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--c-ink);position:relative;z-index:2;
}
.timeline-item:hover .timeline-num{background:var(--c-primary-soft);}
.timeline-body{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:var(--t);
}
.timeline-item:hover .timeline-body{
  transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2);
}
.timeline-top{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  flex-wrap:wrap;margin-bottom:10px;
}
.timeline-top h3{font-size:18.5px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-btn);
  background:var(--c-primary-soft);color:#4d5c14;
  font-size:12.5px;font-weight:700;white-space:nowrap;
}
.tag-warn{background:rgba(255,111,78,.12);color:#C4472A;}
.timeline-body p{font-size:15px;color:var(--c-text-2);line-height:1.85;}
.timeline-body p + p{margin-top:10px;}

/* ============ 图文说明卡 ============ */
.split-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.split-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:var(--t);display:flex;flex-direction:column;
}
.split-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.split-card figure{margin:0;position:relative;overflow:hidden;background:var(--c-surface);}
.split-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.split-card:hover img{transform:scale(1.03);}
.split-card .card-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.split-card h3{font-size:19px;}
.split-card p{font-size:15px;color:var(--c-text-2);line-height:1.85;}
.split-card .link-arrow{margin-top:auto;padding-top:6px;align-self:flex-start;}

/* ============ 注意事项列表 ============ */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.note-card{
  background:var(--c-card);border:1px solid var(--c-line);border-left:3px solid var(--c-primary);
  border-radius:14px;padding:24px;transition:var(--t);
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-line);border-left-color:var(--c-primary-deep);}
.note-card h3{font-size:17px;margin-bottom:10px;display:flex;align-items:center;gap:10px;}
.note-card h3 span{
  width:26px;height:26px;border-radius:8px;background:var(--c-primary-soft);
  color:#4d5c14;font-size:13px;font-weight:800;display:inline-flex;
  align-items:center;justify-content:center;font-variant-numeric:tabular-nums;flex-shrink:0;
}
.note-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
  overflow:hidden;transition:var(--t);position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary);transform:scaleY(0);transform-origin:top;transition:var(--t);
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-item:hover{border-color:#d2d6c6;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-q:hover{color:#000;}
.faq-icon{
  position:relative;width:22px;height:22px;flex-shrink:0;border-radius:50%;
  border:1.5px solid var(--c-line);transition:var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--c-ink);
  border-radius:2px;transition:transform .22s ease,background .22s ease;
}
.faq-icon::before{width:10px;height:1.8px;transform:translate(-50%,-50%);}
.faq-icon::after{width:1.8px;height:10px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon{border-color:var(--c-primary);background:var(--c-primary-soft);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{padding:0 24px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85;}
.faq-a[hidden]{display:none;}

/* ============ CTA ============ */
.cta-band{
  position:relative;background:var(--c-ink);color:var(--c-reverse);
  border-radius:var(--r-lg);padding:56px 48px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:8px;
  background:repeating-linear-gradient(115deg,var(--c-primary) 0 26px,transparent 26px 52px);
  opacity:.9;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;
  border-radius:50%;border:1px solid rgba(198,242,78,.28);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;}
.cta-text{max-width:620px;}
.cta-text h2{font-size:clamp(21px,2.3vw,28px);color:var(--c-reverse);margin-bottom:12px;}
.cta-text p{font-size:15px;color:rgba(247,248,242,.72);line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-reverse);padding:64px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr .9fr .9fr 1.2fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(247,248,242,.12);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:var(--c-reverse);}
.footer-brand .brand-sub{color:rgba(247,248,242,.7);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,248,242,.66);max-width:380px;}
.footer-col h4{
  font-size:14px;font-weight:800;color:var(--c-primary);
  letter-spacing:.04em;margin-bottom:16px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(247,248,242,.7);}
.footer-links a:hover{color:var(--c-reverse);}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(247,248,242,.6);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:13px;color:rgba(247,248,242,.55);
  font-variant-numeric:tabular-nums;
}
.dot-sep{margin:0 8px;opacity:.5;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{max-width:560px;}
  .page-hero{padding:126px 0 72px;}
  .split-cards{grid-template-columns:1fr;}
  .note-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.85;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .nav-inner{height:64px;}
  .site-header.is-scrolled .nav-inner{height:56px;}
  .brand-text{font-size:16.5px;}
  .brand-sub{font-size:13.5px;}
  .page-hero{padding:112px 0 64px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;min-height:48px;}
  .hero-meter{grid-template-columns:repeat(3,1fr);padding:12px;}
  .meter-num{font-size:20px;}
  .meter-label{font-size:11px;}
  .timeline::before{left:21px;}
  .timeline-item{grid-template-columns:44px 1fr;gap:14px;padding-bottom:20px;}
  .timeline-num{width:44px;height:44px;font-size:15px;}
  .timeline-body{padding:20px;}
  .timeline-top h3{font-size:17px;}
  .note-grid{grid-template-columns:1fr;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:40px 22px;border-radius:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;min-height:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .split-card .card-body{padding:20px;}
  .note-card{padding:20px;}
  .hero-meter{grid-template-columns:1fr 1fr 1fr;gap:4px;}
  .breadcrumb{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --c-primary:#C6F24E;
  --c-primary-deep:#9FD222;
  --c-primary-soft:#EAF9C4;
  --c-ink:#14161B;
  --c-accent:#FF6F4E;
  --c-bg:#F5F6F1;
  --c-surface:#EDEFE7;
  --c-card:#FFFFFF;
  --t-main:#14161B;
  --t-sub:#565B63;
  --t-weak:#8A9099;
  --t-invert:#F7F8F2;
  --c-line:#E2E5DA;
  --line-dark:rgba(255,255,255,.12);
  --r-card:16px;
  --r-lg:24px;
  --r-sm:12px;
  --sh:0 8px 24px rgba(20,22,27,.06);
  --sh-hover:0 14px 32px rgba(20,22,27,.10);
  --tr:all .22s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-main);
  background:var(--c-bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:var(--tr);}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;line-height:1.3;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(245,246,241,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,22,27,.08);
  transition:var(--tr);
}
.site-header.is-scrolled{
  background:rgba(245,246,241,.94);
  box-shadow:0 6px 20px rgba(20,22,27,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:var(--tr);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:22px;height:22px;border-radius:6px;background:var(--c-primary);
  position:relative;transform:skewX(-8deg);flex-shrink:0;
  box-shadow:0 2px 8px rgba(159,210,34,.35);
}
.brand-mark::after{
  content:"";position:absolute;inset:5px 6px;background:var(--c-ink);
  clip-path:polygon(62% 0,0 58%,44% 58%,34% 100%,100% 40%,52% 40%);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.brand-sub{color:var(--t-sub);font-weight:700;margin-left:2px;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--t-sub);font-weight:500;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .22s cubic-bezier(.4,0,.2,1);
}
.nav-link:hover{color:var(--t-main);background:rgba(20,22,27,.04);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--t-main);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(20,22,27,.16);border-radius:999px;color:var(--t-main);
  transition:var(--tr);
}
.icon-btn:hover{border-color:var(--c-ink);background:rgba(20,22,27,.05);}
.icon-btn svg{width:17px;height:17px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:700;
  line-height:1.2;white-space:nowrap;transition:var(--tr);border:1.5px solid transparent;
}
.btn-primary{background:var(--c-primary);color:var(--c-ink);box-shadow:0 6px 16px rgba(159,210,34,.28);}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(159,210,34,.36);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(159,210,34,.24);}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-ink);color:var(--t-invert);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-invert{background:transparent;border-color:rgba(247,248,242,.55);color:var(--t-invert);}
.btn-invert:hover{background:rgba(247,248,242,.12);border-color:var(--t-invert);}
.btn-line{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;
  color:var(--t-main);padding-bottom:3px;position:relative;
}
.btn-line::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--c-primary);transform:scaleX(.35);transform-origin:left;
  transition:transform .22s cubic-bezier(.4,0,.2,1);border-radius:2px;
}
.btn-line:hover::after{transform:scaleX(1);}
.header-cta{padding:11px 22px;font-size:14.5px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1.5px solid rgba(20,22,27,.16);align-items:center;justify-content:center;
  flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:var(--tr);}

/* 抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;z-index:220;
  background:var(--c-ink);color:var(--t-invert);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  padding:22px 20px 28px;display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-head .brand-text{color:var(--t-invert);font-size:17px;}
.drawer-head .brand-sub{color:rgba(247,248,242,.6);}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-dark);
  color:var(--t-invert);font-size:20px;line-height:1;display:inline-flex;
  align-items:center;justify-content:center;
}
.drawer-close:hover{background:rgba(247,248,242,.1);}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:6px;}
.drawer-link{
  display:block;height:52px;line-height:52px;padding-left:14px;border-radius:8px;
  border-left:3px solid transparent;color:rgba(247,248,242,.75);font-size:15px;
}
.drawer-link:hover{background:rgba(247,248,242,.07);color:var(--t-invert);}
.drawer-link.is-active{border-left-color:var(--c-primary);color:var(--t-invert);font-weight:700;background:rgba(198,242,78,.08);}
.drawer-cta{margin-top:auto;width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,27,.45);z-index:210;
  opacity:0;visibility:hidden;transition:var(--tr);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ Hero ============ */
.hero{position:relative;padding:132px 0 68px;overflow:hidden;isolation:isolate;}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.30;filter:saturate(.7);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(245,246,241,.88) 0%,rgba(245,246,241,.94) 55%,#F5F6F1 100%);
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--t-weak);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--t-main);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--t-main);font-weight:600;}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:var(--c-primary-soft);color:#4C6B10;font-size:12.5px;font-weight:700;
  letter-spacing:.02em;
}
.badge-alert{background:rgba(255,111,78,.12);color:#C2472B;}
.hero h1{
  font-size:clamp(28px,3.2vw,42px);line-height:1.25;margin:16px 0 18px;
  letter-spacing:-.015em;max-width:15em;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--t-sub);max-width:30em;}
.hero-points{display:flex;flex-direction:column;gap:10px;margin-top:22px;}
.hero-points li{
  position:relative;padding-left:26px;font-size:15px;color:var(--t-sub);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;
  border-radius:4px;background:var(--c-primary);
  clip-path:polygon(40% 0,100% 0,60% 48%,100% 48%,30% 100%,45% 55%,0 55%);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-media{position:relative;}
.hero-media::before{
  content:"";position:absolute;left:-14px;top:-14px;width:76px;height:76px;
  border:2px solid var(--c-primary);border-radius:14px;transform:skewY(-8deg);
  z-index:0;
}
.hero-media img{
  position:relative;z-index:1;width:100%;border-radius:20px;
  border:1px solid var(--c-line);box-shadow:var(--sh-hover);
  aspect-ratio:4/3;object-fit:cover;
  background:var(--c-surface);
}
.hero-media figcaption{
  position:relative;z-index:1;margin-top:12px;font-size:12.5px;color:var(--t-weak);
}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.section-head p{color:var(--t-sub);font-size:15.5px;line-height:1.85;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:#7A8A45;text-transform:uppercase;margin-bottom:10px;
}

/* 三枚信息卡 */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  position:relative;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh);
  transition:var(--tr);
}
.info-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-hover);}
.info-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:11px;border:1.5px solid var(--c-primary);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
  color:var(--c-ink);margin-bottom:16px;background:rgba(198,242,78,.10);
}
.info-card h3{font-size:18.5px;margin-bottom:10px;}
.info-card p{font-size:14.5px;line-height:1.85;color:var(--t-sub);}
.info-card .tag-row{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
  background:var(--c-surface);color:var(--t-sub);font-size:12.5px;font-weight:600;
}

/* FAQ */
.faq-section{background:var(--c-surface);}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.faq-col{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);
  border-left:3px solid transparent;border-radius:14px;
  box-shadow:var(--sh);transition:var(--tr);overflow:hidden;
}
.faq-item:hover{border-color:var(--c-primary);border-left-color:var(--c-primary);}
.faq-item[open]{border-left-color:var(--c-primary);box-shadow:var(--sh-hover);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;
  gap:14px;padding:20px 22px;font-size:17px;font-weight:600;
  color:var(--t-main);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{display:none;content:"";}
.faq-icon{
  position:relative;flex-shrink:0;width:20px;height:20px;margin-top:3px;
  border-radius:6px;background:var(--c-primary-soft);transition:var(--tr);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:#4C6B10;border-radius:2px;
  left:50%;top:50%;transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:var(--tr);}
.faq-item[open] .faq-icon{background:var(--c-primary);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(45deg);opacity:0;}
.faq-answer{padding:0 22px 22px 56px;font-size:15px;line-height:1.85;color:var(--t-sub);}

/* 术语卡组 */
.term-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.term-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
  padding:22px 22px;transition:var(--tr);box-shadow:var(--sh);
}
.term-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-hover);}
.term-card h3{
  font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px;
}
.term-card h3::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary);
  flex-shrink:0;
}
.term-card p{font-size:14px;line-height:1.8;color:var(--t-sub);}

/* 返回链接 */
.back-link-row{padding:16px 0 0;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  color:var(--t-main);position:relative;padding-bottom:3px;
}
.back-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--c-primary);transform:scaleX(.35);transform-origin:left;
  transition:transform .22s cubic-bezier(.4,0,.2,1);border-radius:2px;
}
.back-link:hover::after{transform:scaleX(1);}
.back-link span{transition:var(--tr);}
.back-link:hover span{transform:translateX(-3px);}

/* CTA 通栏 */
.cta-wrap{padding:16px 0 88px;}
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);color:var(--t-invert);
  border-radius:var(--r-lg);padding:54px 44px;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:6px;
  background:var(--c-primary);transform:skewY(-1.2deg);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-70px;width:240px;height:240px;
  background:var(--c-primary);opacity:.09;border-radius:44px;transform:rotate(18deg);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;gap:40px;justify-content:space-between;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;color:var(--t-invert);}
.cta-band p{color:rgba(247,248,242,.72);font-size:15.5px;line-height:1.8;max-width:34em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--t-invert);padding:64px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:var(--t-invert);font-size:18px;}
.footer-brand .brand-sub{color:rgba(247,248,242,.6);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,248,242,.66);max-width:30em;}
.footer-col h4{font-size:14px;color:var(--c-primary);margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(247,248,242,.7);}
.footer-links a:hover{color:var(--t-invert);}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(247,248,242,.62);}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,248,242,.55);
}
.dot-sep{margin:0 6px;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .header-inner{height:64px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .hero{padding:112px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero h1{max-width:none;}
  .hero-media{order:2;max-width:560px;}
  .info-grid{grid-template-columns:repeat(2,1fr);}
  .term-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero{padding:100px 0 48px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-points li{font-size:14.5px;}
  .info-grid{grid-template-columns:1fr;gap:16px;}
  .term-grid{grid-template-columns:1fr;gap:14px;}
  .info-card{padding:22px 20px;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .faq-item summary{padding:18px 18px;font-size:16px;}
  .faq-answer{padding:0 18px 20px 52px;font-size:14.5px;}
  .cta-band{padding:36px 22px;border-radius:18px;}
  .cta-inner{gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;min-height:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding:48px 0 24px;}
  .back-link-row{padding-top:8px;}
}
@media (max-width:520px){
  .brand-text{font-size:16.5px;}
  .brand-mark{width:20px;height:20px;}
  .btn{padding:12px 20px;font-size:14.5px;}
  .hero-media::before{display:none;}
  .cta-band h2{font-size:21px;}
}