/* roulang page: index */
:root{
  --lime:#C9F227;
  --lime-600:#B4D91B;
  --orange:#FF6B35;
  --ink:#0D1114;
  --ink-2:#151B20;
  --paper:#F5F6F2;
  --white:#FFFFFF;
  --gray:#8A9299;
  --line:#D8DCD6;
  --line-dark:rgba(255,255,255,.08);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --shadow-soft:0 1px 2px rgba(13,17,20,.06), 0 10px 28px -12px rgba(13,17,20,.18);
  --shadow-hover:0 2px 6px rgba(13,17,20,.08), 0 20px 40px -16px rgba(13,17,20,.3);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --t:200ms cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;
}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--lime);color:var(--ink);padding:10px 16px;z-index:300;font-weight:700}
.skip-link:focus{left:12px;top:12px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-dark{background:var(--ink);color:#fff}
.section-dark .lead,.section-dark p{color:rgba(255,255,255,.76)}
h1{font-size:48px;font-weight:800;line-height:1.12;letter-spacing:-.02em}
.h2{font-size:34px;font-weight:700;line-height:1.24;letter-spacing:-.01em}
.h3{font-size:21px;font-weight:600;line-height:1.4}
.lead{font-size:17px;color:#4C555C;line-height:1.8}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;letter-spacing:.02em;font-weight:700}
.section-head{max-width:720px;margin-bottom:32px}
.section-head .h2{margin-top:12px}
.section-head .lead{margin-top:14px}
.badge{display:inline-flex;align-items:center;height:25px;padding:0 10px;border-radius:6px;font-size:13.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-orange{background:var(--orange);color:#fff}
.badge-gray{background:rgba(138,146,153,.16);color:#5C666D}
.badge-dark{background:rgba(255,255,255,.08);color:var(--lime);border:1px solid var(--line-dark)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-btn);font-weight:700;font-size:16px;border:1px solid transparent;transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
.btn-lg{height:52px;padding:0 32px}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:#D6F756;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(201,242,39,.9)}
.btn-primary:active{transform:translateY(0);background:var(--lime-600)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#222A31;transform:translateY(-1px)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px;transition:color var(--t),border-color var(--t)}
.link-more:hover{color:var(--lime-600);border-color:var(--orange)}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:var(--ink);border-bottom:1px solid var(--line-dark);transition:padding var(--t),background var(--t),box-shadow var(--t)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;transition:height var(--t)}
.site-header.is-scrolled{box-shadow:0 12px 28px -20px rgba(0,0,0,.9)}
.site-header.is-scrolled .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--lime),#8FCB12);position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;left:7px;top:9px;width:16px;height:12px;border-left:3px solid var(--ink);border-bottom:3px solid var(--ink);border-radius:1px;transform:skewX(-12deg)}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--lime)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.78);padding:6px 0;transition:color var(--t)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--lime);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--radius-btn);background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;font-weight:700;font-size:15px}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:200;background:var(--ink);padding:22px 20px 28px;display:flex;flex-direction:column;transform:translateY(-100%);visibility:hidden;transition:transform 240ms ease-out,visibility 240ms}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{font-size:19px;font-weight:700;color:#fff;padding:14px 4px;border-bottom:1px solid var(--line-dark)}
.drawer-links a.is-active{color:var(--lime)}
.drawer .btn{margin-top:auto;width:100%}

/* ---------- hero ---------- */
.hero{position:relative;background-color:var(--ink);background-image:linear-gradient(102deg,rgba(13,17,20,.94) 0%,rgba(13,17,20,.82) 46%,rgba(13,17,20,.55) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line-dark)}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:center;padding:96px 0;min-height:560px}
.hero-copy{max-width:640px}
.hero .eyebrow{color:var(--lime);background:rgba(201,242,39,.1);border:1px solid rgba(201,242,39,.35);border-radius:999px;padding:7px 14px}
.hero h1{margin-top:22px;color:#fff}
.hero-sub{margin-top:20px;font-size:19px;line-height:1.75;color:rgba(255,255,255,.78);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line-dark)}
.hero-facts div{min-width:96px}
.hero-facts strong{display:block;font-size:26px;font-weight:800;color:var(--lime);line-height:1.2}
.hero-facts span{font-size:13.5px;color:rgba(255,255,255,.6)}
.hero-card{background:rgba(255,255,255,.045);border:1px solid var(--line-dark);border-radius:var(--radius-card);padding:26px;box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.hero-card-label{font-size:13.5px;letter-spacing:.02em;color:rgba(255,255,255,.62);font-weight:700}
.hero-card-num{margin-top:8px;font-size:46px;font-weight:800;line-height:1;color:#fff}
.hero-card-num span{font-size:20px;color:var(--lime);margin-left:2px}
.mini-track{height:8px;border-radius:999px;background:rgba(255,255,255,.12);margin-top:18px;overflow:hidden}
.mini-track i{display:block;height:100%;width:68%;border-radius:999px;background:linear-gradient(90deg,var(--lime),var(--orange))}
.hero-card-list{margin-top:20px;display:grid;gap:10px}
.hero-card-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:rgba(255,255,255,.66);border-bottom:1px dashed rgba(255,255,255,.1);padding-bottom:10px}
.hero-card-list li:last-child{border-bottom:0;padding-bottom:0}
.hero-card-list strong{color:#fff;font-weight:700}

/* ---------- chips ---------- */
.chip-bar{padding:28px 0;background:var(--white);border-bottom:1px solid var(--line)}
.chips{display:flex;gap:12px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{height:6px}
.chips::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:999px;border:1px solid var(--line);background:var(--paper);font-size:15px;font-weight:600;color:#3A4348;transition:all var(--t)}
.chip:hover{border-color:var(--ink);background:#fff;transform:translateY(-1px);box-shadow:var(--shadow-soft)}
.chip.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.chip i{width:8px;height:8px;border-radius:50%;background:var(--orange);display:inline-block}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative;margin-top:12px}
.steps::before{content:"";position:absolute;left:6%;right:6%;top:34px;height:2px;background:linear-gradient(90deg,var(--lime),var(--orange),var(--line));opacity:.55}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 24px 26px;box-shadow:var(--shadow-soft);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C7CEC7}
.step-no{font-size:34px;font-weight:800;line-height:1;color:var(--ink);letter-spacing:-.02em}
.step-no em{font-style:normal;color:var(--lime-600)}
.step h3{margin-top:16px}
.step p{margin-top:10px;font-size:15.5px;color:#5C666D;line-height:1.75}
.step-tag{margin-top:18px;display:inline-flex}

/* ---------- stat strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-soft);transition:transform var(--t),box-shadow var(--t)}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.stat b{display:block;font-size:36px;font-weight:800;line-height:1.1;letter-spacing:-.02em;color:var(--ink)}
.stat b em{font-style:normal;font-size:18px;color:var(--gray);margin-left:4px;font-weight:700}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--gray);letter-spacing:.02em}

/* ---------- rewards ---------- */
.reward-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.reward-card{background:rgba(255,255,255,.04);border:1px solid var(--line-dark);border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;box-shadow:inset 0 1px 0 rgba(255,255,255,.08);transition:transform var(--t),border-color var(--t),background var(--t)}
.reward-card:hover{transform:translateY(-3px);border-color:rgba(201,242,39,.45);background:rgba(255,255,255,.06)}
.reward-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#22303a,#0d1114)}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease-out}
.reward-card:hover .reward-media img{transform:scale(1.03)}
.reward-media .badge{position:absolute;left:14px;top:14px}
.reward-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.reward-body h3{color:#fff}
.reward-body p{font-size:14.5px;color:rgba(255,255,255,.7);line-height:1.7}
.reward-body .badge{align-self:flex-start;margin-top:auto}

/* ---------- progress ---------- */
.progress-wrap{margin-top:40px}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.12);position:relative;overflow:hidden}
.progress-fill{position:absolute;left:0;top:0;bottom:0;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--lime) 0%,var(--orange) 62%,rgba(255,255,255,.12) 62%)}
.progress-nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.node{position:relative;padding-top:20px;border-top:1px solid var(--line-dark)}
.node::before{content:"";position:absolute;left:0;top:-5px;width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.35)}
.node.done::before{background:var(--orange)}
.node.now::before{background:var(--lime);box-shadow:0 0 0 5px rgba(201,242,39,.18)}
.node b{display:block;font-size:15.5px;color:#fff}
.node span{display:block;margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.58);letter-spacing:.02em}

/* ---------- news ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-soft);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C7CEC7}
.news-media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#e2e6df,#f5f6f2)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease-out}
.news-card:hover .news-media img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:19px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--lime-600)}
.news-summary{font-size:15px;color:#5C666D;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--line);font-size:13.5px;color:var(--gray);letter-spacing:.02em}
.news-empty{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:48px 24px;text-align:center}
.news-empty .mark{width:52px;height:52px;border-radius:16px;background:var(--paper);border:1px solid var(--line);margin:0 auto 16px;position:relative}
.news-empty .mark::after{content:"";position:absolute;left:18px;top:15px;width:14px;height:14px;border:2px solid var(--gray);border-radius:50%}
.news-empty p{color:#5C666D;font-size:15.5px}
.news-empty .link-more{margin-top:16px}
.news-foot{margin-top:36px;text-align:center}

/* ---------- faq ---------- */
.faq-shell{display:grid;grid-template-columns:340px minmax(0,1fr);gap:48px;align-items:start}
.faq-accordion{margin:0;border:0;background:transparent}
.faq-accordion .accordion-item{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:14px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t)}
.faq-accordion .accordion-item:hover{border-color:#C7CEC7;box-shadow:var(--shadow-soft)}
.faq-accordion .accordion-title{position:relative;display:block;padding:20px 58px 20px 22px;font-size:17px;font-weight:700;color:var(--ink);background:transparent;border:0;line-height:1.5}
.faq-accordion .accordion-title::before{content:none}
.faq-accordion .accordion-title::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:600;color:var(--gray);line-height:1}
.faq-accordion .accordion-item.is-active .accordion-title::after{content:"−";color:var(--lime-600)}
.faq-accordion .accordion-content{padding:0 22px 22px;border:0;background:transparent;font-size:15px;line-height:1.7;color:#5C666D}
.faq-accordion .accordion-content p{font-size:15px;line-height:1.7;color:#5C666D}

/* ---------- cta ---------- */
.cta-band{background:var(--lime);color:var(--ink);padding:80px 0}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:56px;align-items:center}
.cta-copy .h2{color:var(--ink)}
.cta-copy p{margin-top:14px;font-size:17px;color:#2C3437;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.form-card{background:#fff;border-radius:var(--radius-card);padding:28px;box-shadow:0 20px 44px -22px rgba(13,17,20,.5)}
.form-card h3{font-size:19px}
.form-card .tip{margin-top:8px;font-size:14px;color:var(--gray)}
.field{margin-top:16px}
.field label{display:block;font-size:13.5px;font-weight:700;letter-spacing:.02em;color:#3A4348;margin-bottom:8px}
.field input,.field textarea{width:100%;height:46px;border-radius:10px;border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:0 14px;transition:border-color var(--t),box-shadow var(--t),background var(--t)}
.field textarea{height:auto;min-height:92px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA2A8}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--lime-600);background:#fff;box-shadow:0 0 0 3px rgba(201,242,39,.35)}
.form-card .btn{width:100%;margin-top:20px}
.form-note{margin-top:12px;font-size:13.5px;color:var(--gray)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0}
.footer-col{padding:0 26px;border-left:1px solid rgba(255,255,255,.1)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.75;max-width:280px;color:rgba(255,255,255,.62)}
.footer-key{margin-top:14px;font-size:13.5px;color:var(--lime);letter-spacing:.02em}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col li a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color var(--t),padding-left var(--t)}
.footer-col li a:hover{color:var(--lime);padding-left:3px}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:minmax(0,1fr) 320px;gap:40px}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .faq-shell{grid-template-columns:300px minmax(0,1fr);gap:36px}
}
@media (max-width:899px){
  h1{font-size:36px}
  .h2{font-size:26px}
  .section{padding:56px 0}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-primary{display:none}
  .nav-wrap{height:64px}
  .hero-inner{grid-template-columns:1fr;padding:64px 0;min-height:0;gap:36px}
  .hero-card{max-width:420px}
  .steps{grid-template-columns:1fr;gap:18px}
  .steps::before{display:none}
  .stats{grid-template-columns:repeat(2,1fr);gap:16px;margin-top:40px}
  .news-grid{grid-template-columns:1fr}
  .faq-shell{grid-template-columns:1fr;gap:24px}
  .cta-band{padding:56px 0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 16px}
  h1{font-size:28px}
  .h2{font-size:22px}
  .h3{font-size:18px}
  .section{padding:40px 0}
  .hero-sub{font-size:17px}
  .hero-facts{gap:18px}
  .hero-facts strong{font-size:22px}
  .reward-grid{grid-template-columns:1fr}
  .progress-nodes{grid-template-columns:1fr 1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col{padding:0;border-left:0}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .chips{margin:0 -16px;padding:0 16px 6px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:1ms!important;animation-duration:1ms!important;scroll-behavior:auto!important}
  .step:hover,.news-card:hover,.reward-card:hover,.stat:hover,.chip:hover,.btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --lime:#C9F227;
  --lime-deep:#b2da10;
  --orange:#FF6B35;
  --ink:#0D1114;
  --ink-soft:#171d21;
  --paper:#F5F6F2;
  --white:#ffffff;
  --muted:#8A9299;
  --line:#D8DCD6;
  --line-dark:rgba(255,255,255,.10);
  --radius-card:14px;
  --radius-img:12px;
  --shadow-card:0 1px 2px rgba(13,17,20,.06), 0 10px 28px -12px rgba(13,17,20,.18);
  --shadow-card-hover:0 2px 4px rgba(13,17,20,.08), 0 18px 40px -14px rgba(13,17,20,.26);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;
  font-size:16px;font-weight:700;line-height:1;
  border-radius:999px;padding:0 26px;height:48px;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:#d6ff3a;color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(201,242,39,.75);}
.btn-primary:active{transform:translateY(0);background:var(--lime-deep);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line);border-radius:12px;}
.btn-outline:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}
.btn-lg{height:52px;padding:0 32px;font-size:16.5px;}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--line-dark);
  transition:height .2s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--lime) 0%,#8fd000 55%,var(--orange) 100%);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:var(--ink);transform:rotate(45deg);
}
.brand-text{color:var(--lime);font-size:21px;font-weight:800;letter-spacing:-.02em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  position:relative;padding:6px 0;transition:color .16s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--lime);transition:right .2s var(--ease);border-radius:2px;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{right:0;}
.nav-links a.is-active{color:#fff;font-weight:700;}
.nav-links a.is-active::after{right:0;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:transparent;border:1px solid rgba(255,255,255,.25);
  color:#fff;font-size:18px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}

/* drawer */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:90;
  background:var(--ink);border-left:1px solid var(--line-dark);
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:22px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;background:transparent;
  border:1px solid rgba(255,255,255,.22);color:#fff;font-size:16px;cursor:pointer;
}
.drawer-close:hover{border-color:var(--lime);color:var(--lime);}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  color:rgba(255,255,255,.86);font-size:19px;font-weight:600;
  padding:13px 12px;border-radius:12px;transition:background .16s var(--ease),color .16s var(--ease);
}
.drawer-links a:hover{background:rgba(255,255,255,.07);color:#fff;}
.drawer-links a.is-active{color:var(--lime);background:rgba(201,242,39,.1);}
.drawer-cta{margin-top:auto;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,17,20,.55);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* breadcrumb + article head */
.page-top{background:var(--white);border-bottom:1px solid var(--line);padding:28px 0 40px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;letter-spacing:.02em;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:var(--line);}
.crumb .now{color:var(--ink);}
.crumb .now::before{content:"";}
.page-title-row{margin-top:22px;max-width:860px;}
.cat-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:6px;background:rgba(201,242,39,.28);color:#3d4a04;
  font-size:13.5px;font-weight:700;letter-spacing:.02em;
}
.page-title-row h1{
  font-size:48px;font-weight:800;line-height:1.12;letter-spacing:-.02em;
  margin:16px 0 18px;word-break:break-word;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13.5px;color:var(--muted);letter-spacing:.02em;}
.meta-row span{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{color:var(--lime-deep);font-size:13px;}

/* layout */
.article-layout{padding:56px 0 72px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:48px;align-items:start;}
.article-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:44px 48px;
}
.lead{
  font-size:18px;line-height:1.85;color:#2b3237;border-left:3px solid var(--lime);
  padding-left:18px;margin:0 0 28px;
}
.article-body{font-size:17px;line-height:1.85;color:#1b2226;max-width:760px;}
.article-body p{margin:0 0 18px;}
.article-body h2{font-size:24px;font-weight:700;margin:34px 0 16px;line-height:1.35;}
.article-body h3{font-size:20px;font-weight:600;margin:26px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:0 0 8px;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--lime);
  background:#f0f2ec;border-radius:0 10px 10px 0;color:#3a4247;
}
.article-body img{border-radius:var(--radius-img);margin:22px 0 8px;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13.5px;color:var(--muted);letter-spacing:.02em;}
.article-body table{width:100%;border-collapse:collapse;font-size:15.5px;}
.article-body .table-scroll{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:12px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:#f0f2ec;font-weight:700;}
.article-body a{color:#4d7d00;text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--ink);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;
  background:#eef1ea;color:#4b5459;font-size:13.5px;letter-spacing:.02em;
}
.empty-state{
  background:var(--white);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-card);
}
.empty-icon{
  width:64px;height:64px;border-radius:18px;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--lime),#8fd000);
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:24px;
}
.empty-state h2{font-size:24px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* sidebar */
.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:88px;}
.side-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:22px;
}
.side-card h3{font-size:17px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--lime-deep);font-size:14px;}
.toc-nav{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto;}
.toc-nav a{
  font-size:14.5px;color:#4b5459;padding:8px 10px;border-radius:8px;
  border-left:2px solid transparent;transition:all .16s var(--ease);
}
.toc-nav a:hover,.toc-nav a.is-current{background:#f0f2ec;color:var(--ink);border-left-color:var(--lime);}
.reco-list{display:flex;flex-direction:column;gap:16px;}
.reco-item{display:flex;gap:12px;align-items:flex-start;}
.reco-thumb{
  width:84px;height:56px;flex:0 0 auto;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,#20282c,#0d1114);position:relative;
}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s var(--ease);}
.reco-item:hover .reco-thumb img{transform:scale(1.04);}
.reco-body h4{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reco-body time{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.side-cta{
  background:var(--ink);border-radius:var(--radius-card);padding:24px;color:#fff;
  border:1px solid rgba(255,255,255,.08);
}
.side-cta h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px;}
.side-cta p{font-size:14.5px;color:rgba(255,255,255,.7);margin-bottom:16px;line-height:1.7;}
.side-cta .btn{width:100%;}

/* quote / mid band */
.mid-band{
  margin:40px 0 0;background:var(--ink);color:#fff;border-radius:var(--radius-card);
  padding:32px 36px;display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between;
}
.mid-band .stat{display:flex;flex-direction:column;gap:2px;}
.mid-band .stat b{font-size:30px;font-weight:800;color:var(--lime);line-height:1.1;}
.mid-band .stat span{font-size:13.5px;color:rgba(255,255,255,.62);letter-spacing:.02em;}
.mid-band .divider{width:1px;height:44px;background:rgba(255,255,255,.12);}

/* related */
.related-section{padding:0 0 80px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.section-head h2{font-size:34px;font-weight:700;letter-spacing:-.02em;}
.section-head p{color:var(--muted);font-size:15px;margin:6px 0 0;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.post-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);}
.post-cover{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--lime),#4d7d00);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:19px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14.5px;color:#5b646a;line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:13.5px;color:var(--muted);}
.badge-line{display:flex;gap:8px;flex-wrap:wrap;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;font-size:13.5px;font-weight:600;}
.badge-lime{background:rgba(201,242,39,.3);color:#41500a;}
.badge-orange{background:rgba(255,107,53,.16);color:#a63a10;}
.badge-gray{background:#eef1ea;color:#5b646a;}

/* faq */
.faq-section{padding:0 0 80px;}
.accordion{border:none;background:transparent;margin:0;max-width:880px;}
.accordion .accordion-item{border:1px solid var(--line);background:var(--white);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-card);}
.accordion .accordion-title{
  padding:18px 54px 18px 22px;font-size:17px;font-weight:700;color:var(--ink);
  border:none;position:relative;background:transparent;line-height:1.6;
}
.accordion .accordion-title:hover{background:#f6f8f2;}
.accordion .accordion-title::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--ink);transition:transform .2s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::after{content:"−";color:var(--lime-deep);}
.accordion .accordion-content{padding:0 22px 20px;border:none;background:transparent;font-size:15px;line-height:1.75;color:#4b5459;}

/* cta band */
.cta-band{background:var(--lime);color:var(--ink);padding:80px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
.cta-inner p{margin:8px 0 0;font-size:16px;color:#3d4708;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#1d2429;color:#fff;transform:translateY(-1px);}
.btn-line{border-color:rgba(13,17,20,.35);color:var(--ink);background:transparent;}
.btn-line:hover{border-color:var(--ink);}

/* footer */
.site-footer{background:var(--ink);color:#fff;padding:60px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;}
.footer-col{padding:0 28px;}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{padding-right:0;border-right:none;}
.footer-col + .footer-col{border-left:1px solid var(--line-dark);}
.footer-desc{margin:16px 0 10px;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.68);}
.footer-key{font-size:13.5px;color:var(--lime);letter-spacing:.02em;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14.5px;color:rgba(255,255,255,.68);transition:color .16s var(--ease);}
.footer-col ul a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13.5px;color:rgba(255,255,255,.5);letter-spacing:.02em;
}

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

@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
  .page-title-row h1{font-size:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(odd){padding-left:0;}
  .footer-col:nth-child(3){border-left:none;padding-left:0;}
}
@media (max-width:899px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;order:2;}
  .article-card{padding:32px 26px;}
  .page-title-row h1{font-size:30px;}
  .section-head h2{font-size:26px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .cta-inner h2{font-size:27px;}
  .cta-band{padding:56px 0;}
  .article-layout{padding:40px 0 56px;}
  .mid-band{padding:26px;}
  .mid-band .divider{display:none;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:19px;}
  .header-actions .btn{display:none;}
  .page-top{padding:20px 0 28px;}
  .page-title-row h1{font-size:28px;line-height:1.2;}
  .article-card{padding:24px 18px;}
  .article-body{font-size:17px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-col{padding:0 !important;border-left:none !important;}
  .mid-band{flex-direction:column;align-items:flex-start;gap:18px;}
  .btn{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .side-cta .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --lime:#C9F227;
  --lime-hover:#d8ff42;
  --orange:#FF6B35;
  --ink:#0D1114;
  --ink-soft:#151B1F;
  --paper:#F5F6F2;
  --white:#ffffff;
  --gray:#8A9299;
  --line:#D8DCD6;
  --line-soft:#E7EAE4;
  --text:#141A1E;
  --muted:#5C666D;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --radius-sm:12px;
  --shadow-card:0 1px 2px rgba(13,17,20,.06), 0 10px 28px -12px rgba(13,17,20,.18);
  --shadow-hover:0 2px 4px rgba(13,17,20,.08), 0 18px 40px -14px rgba(13,17,20,.26);
  --t:190ms ease-out;
  --font:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--orange)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-0.01em}
h1{font-size:48px;font-weight:800;line-height:1.12;letter-spacing:-0.02em}
h2{font-size:34px;font-weight:700;line-height:1.2;letter-spacing:-0.015em}
h3{font-size:21px;font-weight:600;line-height:1.35}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,17,20,.96);
  border-bottom:1px solid rgba(255,255,255,.10);
  transition:padding var(--t),background var(--t);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;padding-top:12px;padding-bottom:12px;
  transition:min-height var(--t),padding var(--t);
}
.site-header.is-scrolled .container{min-height:60px;padding-top:8px;padding-bottom:8px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff}
.brand:hover{color:#fff;opacity:.92}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:linear-gradient(135deg,var(--lime) 0%,#9FD912 55%,var(--orange) 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 7px;border-radius:3px;
  border-left:3px solid var(--ink);border-bottom:3px solid var(--ink);
}
.brand-text{font-size:21px;font-weight:800;letter-spacing:-0.01em;color:var(--lime)}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.80);
  padding:6px 2px;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff;font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;
  border-radius:10px;height:42px;padding:0 14px;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:border-color var(--t),background var(--t);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle span.bars{display:inline-block;width:16px;height:2px;background:currentColor;position:relative}
.nav-toggle span.bars::before,.nav-toggle span.bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
}
.nav-toggle span.bars::before{top:-5px}
.nav-toggle span.bars::after{top:5px}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--ink);
  display:flex;flex-direction:column;padding:20px 20px 28px;
  transform:translateX(100%);transition:transform 240ms ease-out;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;
  width:42px;height:42px;border-radius:10px;font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--lime);color:var(--lime)}
.drawer-links{display:flex;flex-direction:column;gap:6px;flex:1}
.drawer-links a{
  font-size:19px;font-weight:600;color:rgba(255,255,255,.86);
  padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.10);
}
.drawer-links a.is-active{color:var(--lime)}
.drawer-cta{margin-top:24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--lime);color:var(--ink);height:48px;padding:0 28px;border-radius:var(--radius-btn)}
.btn-primary:hover{background:var(--lime-hover);color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(201,242,39,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:#fff;border-color:rgba(255,255,255,.32);
  height:48px;padding:0 26px;border-radius:var(--radius-sm);
}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}
.btn-dark{
  background:var(--ink);color:#fff;height:48px;padding:0 26px;border-radius:var(--radius-sm);
}
.btn-dark:hover{background:#1d2529;color:#fff;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 20px;font-size:15px;border-radius:var(--radius-btn)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:2px solid var(--lime);padding-bottom:2px;
}
.btn-link:hover{color:var(--orange);border-bottom-color:var(--orange)}

/* ---------- 分类 KV ---------- */
.cat-kv{
  position:relative;background-color:var(--ink);color:#fff;overflow:hidden;
}
.cat-kv::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-kv::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,17,20,.94) 0%,rgba(13,17,20,.80) 46%,rgba(13,17,20,.55) 100%);
}
.cat-kv .container{position:relative;z-index:2;padding-top:56px;padding-bottom:34px}
.cat-kv h1{color:#fff;max-width:820px}
.cat-kv .kv-desc{
  margin-top:16px;max-width:680px;font-size:17.5px;line-height:1.7;color:rgba(255,255,255,.80);
}
.kv-badge{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;
  border-radius:6px;background:rgba(201,242,39,.16);border:1px solid rgba(201,242,39,.42);
  color:var(--lime);font-size:13.5px;letter-spacing:.02em;font-weight:600;margin-bottom:18px;
}
.kv-tabs{position:relative;z-index:2;display:flex;gap:10px;flex-wrap:wrap;padding:0 0 30px}
.kv-tab{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:rgba(255,255,255,.80);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.04);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.kv-tab:hover{color:#fff;border-color:rgba(255,255,255,.5);transform:translateY(-1px)}
.kv-tab.is-current{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.kv-tab.is-current:hover{color:var(--ink)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-dark{background:var(--ink);color:rgba(255,255,255,.78)}
.section-dark h2,.section-dark h3{color:#fff}
.section-light{background:var(--paper)}
.section-white{background:var(--white)}
.section-head{max-width:720px;margin-bottom:36px}
.section-head .eyebrow{
  display:inline-block;font-size:13.5px;font-weight:700;letter-spacing:.04em;
  color:var(--orange);margin-bottom:12px;
}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px}
.section-dark .section-head p{color:rgba(255,255,255,.72)}

/* ---------- 图文交错 ---------- */
.split{padding:40px 0}
.split + .split{border-top:1px solid var(--line-soft)}
.split-media{position:relative}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:var(--shadow-card);
  transition:transform var(--t),box-shadow var(--t);
}
.split-media:hover img{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.split-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--ink);color:var(--lime);
  font-size:16px;font-weight:800;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.split-body h3{font-size:23px;margin-bottom:14px}
.split-body p{color:var(--muted)}
.split-list{margin-top:18px;display:grid;gap:12px}
.split-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--text);line-height:1.7;
}
.split-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:var(--lime);transform:rotate(45deg);
}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:6px;
  font-size:13.5px;font-weight:600;letter-spacing:.02em;
}
.badge-lime{background:rgba(201,242,39,.24);color:#4b5c05}
.badge-orange{background:rgba(255,107,53,.14);color:#B23E0F}
.badge-gray{background:rgba(138,146,153,.16);color:#4E575D}
.section-dark .badge-lime{background:rgba(201,242,39,.18);color:var(--lime)}
.section-dark .badge-orange{background:rgba(255,107,53,.18);color:#FF9163}
.section-dark .badge-gray{background:rgba(255,255,255,.10);color:rgba(255,255,255,.74)}

/* ---------- 数据条 ---------- */
.stats-band{background:var(--ink);position:relative;overflow:hidden}
.stats-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,39,.16) 0%,rgba(201,242,39,0) 68%);
}
.stats-band .container{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat-item{
  padding:26px 22px;border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(180deg,rgba(255,255,255,.06) 0%,rgba(255,255,255,.01) 100%);
}
.stat-value{font-size:34px;font-weight:800;color:var(--lime);line-height:1.1;letter-spacing:-0.02em}
.stat-value em{font-style:normal;font-size:17px;font-weight:700;color:rgba(255,255,255,.66);margin-left:4px}
.stat-label{font-size:13.5px;color:rgba(255,255,255,.66);letter-spacing:.02em;margin-top:10px}
.stat-mark{width:34px;height:4px;border-radius:2px;background:var(--orange);margin-bottom:16px}

/* ---------- 清单卡 ---------- */
.panel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.panel{
  background:var(--white);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.panel:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line)}
.panel h3{font-size:19px;margin-bottom:12px}
.panel p{font-size:15.5px;color:var(--muted);margin-bottom:16px}
.panel-dot{width:38px;height:38px;border-radius:10px;background:rgba(201,242,39,.30);margin-bottom:16px;position:relative}
.panel-dot::after{content:"";position:absolute;inset:12px;border-radius:3px;background:var(--ink)}

/* ---------- 流程轴 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.flow-item{position:relative;padding:0 20px 0 0}
.flow-item::before{
  content:"";position:absolute;left:0;top:16px;width:100%;height:2px;background:var(--line);
}
.flow-item:last-child::before{width:0}
.flow-dot{
  position:relative;z-index:2;width:34px;height:34px;border-radius:50%;
  background:var(--paper);border:2px solid var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:13.5px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;
}
.flow-item.is-done .flow-dot{border-color:var(--orange);color:var(--orange)}
.flow-item h4{font-size:16px;margin:16px 0 8px;font-weight:700}
.flow-item p{font-size:14.5px;color:var(--muted);line-height:1.7;margin:0}

/* ---------- FAQ ---------- */
.accordion{border:none;background:transparent;margin:0}
.accordion .accordion-item{border:none;background:transparent;margin-bottom:12px}
.accordion .accordion-title{
  position:relative;display:block;padding:20px 56px 20px 24px;
  background:var(--white);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  font-size:17px;font-weight:700;color:var(--text);line-height:1.5;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:700;color:var(--ink);line-height:1;
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";color:var(--orange)}
.accordion .accordion-title:hover{background:#fff;border-color:var(--line);box-shadow:var(--shadow-card);color:var(--text)}
.accordion .accordion-item.is-active .accordion-title{
  border-color:var(--ink);background:#fff;border-bottom-left-radius:0;border-bottom-right-radius:0;
}
.accordion .accordion-content{
  display:none;padding:4px 24px 22px;background:#fff;
  border:1px solid var(--ink);border-top:none;
  border-bottom-left-radius:var(--radius-card);border-bottom-right-radius:var(--radius-card);
  font-size:15px;line-height:1.7;color:var(--muted);
}
.accordion .accordion-content p{margin-bottom:12px}
.accordion .accordion-content p:last-child{margin-bottom:0}

/* ---------- CTA 带 + 表单 ---------- */
.cta-band{background:var(--lime);color:var(--ink)}
.cta-band .container{padding-top:80px;padding-bottom:80px}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-copy h2{color:var(--ink);margin-bottom:16px}
.cta-copy p{font-size:17px;color:rgba(13,17,20,.74);max-width:520px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.form-card{
  background:#fff;border-radius:18px;padding:28px 26px;
  box-shadow:0 2px 4px rgba(13,17,20,.06),0 24px 48px -20px rgba(13,17,20,.32);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-note{font-size:13.5px;color:var(--gray);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--muted);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:var(--paper);color:var(--text);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
  appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field input::placeholder{color:#A6ADB2}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--lime);background:#fff;
  box-shadow:0 0 0 3px rgba(201,242,39,.35);
}
.field.has-error input,.field.has-error select{border-color:var(--orange);background:#fff6f2}
.field-error{display:none;font-size:13.5px;color:var(--orange);margin-top:6px}
.field.has-error .field-error{display:block}
.form-card .btn-primary{width:100%;margin-top:6px}
.form-tip{font-size:13.5px;color:var(--gray);margin-top:14px;text-align:center}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:10px;
  background:rgba(201,242,39,.22);color:#40530a;font-size:14.5px;font-weight:600;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col ul li a:hover{color:var(--lime)}
.footer-desc{font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.66);margin:18px 0 14px;max-width:280px}
.footer-key{font-size:13.5px;color:var(--lime);letter-spacing:.02em}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.10);padding-left:36px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  h1{font-size:40px}
  h2{font-size:30px}
}
@media (max-width:899px){
  h1{font-size:34px}
  h2{font-size:26px}
  h3{font-size:19px}
  .nav-links{display:none}
  .header-cta .btn{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:56px 0}
  .section-sm{padding:40px 0}
  .cta-band .container{padding-top:56px;padding-bottom:56px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .panel-grid{grid-template-columns:1fr;gap:18px}
  .flow{grid-template-columns:1fr;gap:26px}
  .flow-item{padding:0 0 0 46px}
  .flow-item::before{left:16px;top:0;width:2px;height:100%}
  .flow-item:last-child::before{height:34px}
  .flow-dot{position:absolute;left:0;top:0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col + .footer-col{border-left:none;padding-left:0}
  .split{padding:28px 0}
  .split-media{margin-bottom:22px}
  .site-header .container{min-height:64px}
}
@media (max-width:639px){
  body{font-size:16px}
  h1{font-size:28px}
  h2{font-size:22px}
  .container{padding:0 16px}
  .cat-kv .container{padding-top:40px;padding-bottom:24px}
  .cat-kv .kv-desc{font-size:16px}
  .kv-tabs{padding-bottom:24px;gap:8px}
  .kv-tab{height:36px;padding:0 15px;font-size:13.5px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-value{font-size:28px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .cta-actions .btn{width:100%}
  .split-body h3{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --lime:#C9F227;
  --lime-lift:#D8F95C;
  --orange:#FF6B35;
  --ink:#0D1114;
  --ink-2:#161C20;
  --paper:#F5F6F2;
  --white:#FFFFFF;
  --gray:#8A9299;
  --line:#D8DCD6;
  --text-2:#4C555B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --shadow-card:0 1px 2px rgba(13,17,20,.06), 0 10px 28px -12px rgba(13,17,20,.18);
  --shadow-hover:0 2px 4px rgba(13,17,20,.08), 0 18px 38px -14px rgba(13,17,20,.26);
  --sp-section:88px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
a:hover{color:inherit}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp-section) 0}
.section-tight{padding:56px 0}
.section-dark{background:var(--ink);color:#fff}
.section-dark .section-lead{color:rgba(255,255,255,.68)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 20px -10px rgba(201,242,39,.7)}
.btn-primary:hover{background:var(--lime-lift);color:var(--ink);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--lime)}
.btn-outline{border:1px solid rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.04)}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn-lg{height:52px;padding:0 32px;font-size:16.5px}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 10px;
  border-radius:6px;font-size:13.5px;letter-spacing:.02em;font-weight:600;
}
.badge-lime{background:rgba(201,242,39,.22);color:#5C6E06}
.badge-orange{background:rgba(255,107,53,.16);color:#B63F12}
.badge-gray{background:rgba(13,17,20,.06);color:var(--text-2)}
.badge-dark{border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.8)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(0,0,0,.8)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s ease-out}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--lime) 0%,var(--lime) 48%,var(--orange) 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff}
.footer-col .brand-text{color:#fff}
.nav-links{display:flex;align-items:center;gap:26px;margin:0 auto}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.76);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;border-radius:2px;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff;font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);color:#fff;
  align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--ink);
  display:flex;flex-direction:column;padding:22px 20px 26px;
  transform:translateY(-102%);opacity:0;visibility:hidden;
  transition:transform .26s ease-out,opacity .26s ease-out,visibility .26s;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin:34px 0 auto}
.drawer-nav a{
  font-size:19px;font-weight:600;color:rgba(255,255,255,.82);
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-nav a.is-active{color:var(--lime)}
.drawer-cta{margin-top:26px;width:100%}

/* ---------- page kv ---------- */
.page-kv{
  position:relative;background-color:var(--ink);
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  padding:66px 0 58px;overflow:hidden;
}
.page-kv::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,17,20,.95) 0%,rgba(13,17,20,.78) 52%,rgba(13,17,20,.5) 100%);
}
.page-kv::after{
  content:"";position:absolute;right:-10%;top:-40%;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(201,242,39,.16);
}
.page-kv .container{position:relative;z-index:2}
.kv-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:6px;background:rgba(201,242,39,.14);color:var(--lime);
  font-size:13.5px;letter-spacing:.02em;font-weight:600;margin-bottom:18px;
}
.page-kv h1{
  color:#fff;font-size:48px;font-weight:800;line-height:1.12;letter-spacing:-.02em;
  max-width:760px;
}
.kv-sub{color:rgba(255,255,255,.76);font-size:18px;margin-top:16px;max-width:640px}
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.cat-tabs a{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.82);font-size:14.5px;
  transition:background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.cat-tabs a:hover{border-color:var(--lime);color:#fff}
.cat-tabs a.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:700}

/* ---------- section head ---------- */
.section-head{max-width:780px}
.section-tag{
  display:inline-block;font-size:13.5px;letter-spacing:.02em;font-weight:700;
  color:#6E7A0A;background:rgba(201,242,39,.22);border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.section-dark .section-tag{background:rgba(201,242,39,.14);color:var(--lime)}
.section-head h2{font-size:34px;font-weight:700;line-height:1.22;letter-spacing:-.01em}
.section-lead{margin-top:16px;font-size:16.5px;color:var(--text-2);line-height:1.8}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:44px}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--lime) 0%,rgba(201,242,39,.28) 62%,rgba(201,242,39,.06) 100%);
}
.tl-item{display:grid;grid-template-columns:40px 1fr;column-gap:26px;position:relative}
.tl-node{
  width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--line);
  display:flex;align-items:center;justify-content:center;z-index:2;
  font-size:13.5px;font-weight:800;color:var(--text-2);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
  transition:background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.tl-item.is-current .tl-node{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;margin-bottom:22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.tl-body h3{font-size:21px;font-weight:600;line-height:1.4}
.tl-body p{margin-top:8px;color:var(--text-2);font-size:15.5px}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tl-item:last-child .tl-body{margin-bottom:0}

/* ---------- stats band ---------- */
.stats-band{
  margin-top:40px;display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.1);
  border-radius:16px;overflow:hidden;
}
.stat{background:var(--ink);padding:30px 26px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.stat-num{
  font-size:34px;font-weight:800;line-height:1.15;color:var(--lime);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat-num small{font-size:15px;font-weight:700;color:rgba(255,255,255,.72);margin-left:6px}
.stat-label{font-size:13.5px;letter-spacing:.02em;color:rgba(255,255,255,.62);margin-top:6px}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C6CCC4}
.card-media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#1B2227 0%,#0D1114 60%,#2A3A12 100%)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:21px;font-weight:600;line-height:1.4}
.card-body p{color:var(--text-2);font-size:15.5px;line-height:1.75}
.card-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.card-link{font-size:15px;font-weight:700;color:#5C6E06;border-bottom:2px solid var(--lime);align-self:flex-start;padding-bottom:2px}
.card-link:hover{color:var(--ink);border-color:var(--orange)}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;margin-top:40px}
.split-media{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.check-list{margin-top:26px}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.check-list li:first-child{border-top:1px dashed var(--line)}
.check-list li::before{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-top:9px;border-radius:3px;
  background:var(--lime);box-shadow:0 0 0 3px rgba(201,242,39,.24);
}
.check-list strong{display:block;font-size:16.5px;font-weight:700}
.check-list span{display:block;color:var(--text-2);font-size:15px;margin-top:2px}

/* ---------- notice strip ---------- */
.notice-strip{
  margin-top:40px;border-radius:16px;border:1px solid var(--line);background:#fff;
  padding:26px 28px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  box-shadow:var(--shadow-card);
}
.notice-strip .notice h4{font-size:16.5px;font-weight:700;display:flex;align-items:center;gap:10px}
.notice-strip .notice h4 i{color:#6E7A0A}
.notice-strip .notice p{color:var(--text-2);font-size:15px;margin-top:8px}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:36px;max-width:900px}
.faq-wrap .accordion{border:0;background:transparent;margin:0}
.faq-wrap .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-wrap .accordion-title{
  border:0;background:transparent;color:var(--ink);
  font-size:17px;font-weight:700;padding:22px 46px 22px 0;position:relative;display:block;
}
.faq-wrap .accordion-title:hover{background:transparent;color:var(--ink)}
.faq-wrap .accordion-title::before{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;color:#6E7A0A;background:none;border:0;width:auto;height:auto;
}
.faq-wrap .accordion-item.is-active .accordion-title::before{content:"−";color:var(--orange)}
.faq-wrap .accordion-content{
  border:0;background:transparent;padding:0 46px 24px 0;
  font-size:15px;line-height:1.7;color:var(--text-2);
}

/* ---------- CTA band ---------- */
.cta-band{background:var(--lime);color:var(--ink);padding:80px 0}
.cta-band h2{font-size:34px;font-weight:700;line-height:1.22;letter-spacing:-.01em}
.cta-band .cta-desc{margin-top:14px;font-size:16.5px;color:#3C4A05;max-width:460px}
.cta-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#1D2529;color:#fff;transform:translateY(-1px)}

/* ---------- form ---------- */
.signup-card{
  background:#fff;border-radius:16px;padding:28px;border:1px solid rgba(13,17,20,.1);
  box-shadow:0 20px 44px -22px rgba(13,17,20,.4);
}
.signup-card h3{font-size:21px;font-weight:700}
.signup-card > p{color:var(--text-2);font-size:14.5px;margin-top:6px}
.form-row{margin-top:18px}
.form-row label{display:block;font-size:13.5px;font-weight:700;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em}
.form-row input,.form-row select{
  width:100%;height:46px;border-radius:10px;border:1px solid var(--line);
  background:var(--paper);padding:0 14px;font-size:15.5px;color:var(--ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
  appearance:none;
}
.form-row input:focus,.form-row select:focus{
  outline:none;border-color:var(--lime);background:#fff;
  box-shadow:0 0 0 3px rgba(201,242,39,.3);
}
.form-row.has-error input,.form-row.has-error select{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,53,.18)}
.form-hint{font-size:13.5px;color:var(--orange);margin-top:6px;display:none}
.form-row.has-error .form-hint{display:block}
.form-actions{margin-top:22px}
.form-note{font-size:13.5px;color:var(--gray);margin-top:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;letter-spacing:.02em;margin-bottom:16px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a,.footer-col ul span{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .18s ease-out}
.footer-col ul a:hover{color:var(--lime)}
.footer-desc{font-size:14.5px;color:rgba(255,255,255,.66);margin-top:16px;max-width:280px;line-height:1.7}
.footer-key{font-size:13.5px;letter-spacing:.02em;color:rgba(255,255,255,.42);margin-top:12px}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.1);padding-left:32px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:52px;padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--sp-section:72px}
  .page-kv h1{font-size:40px}
  .section-head h2,.cta-band h2{font-size:29px}
  .split,.cta-layout{gap:40px}
}
@media (max-width:899px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .page-kv{padding:52px 0 44px}
  .page-kv h1{font-size:32px}
  .kv-sub{font-size:16.5px}
  .card-grid{grid-template-columns:1fr 1fr}
  .stats-band{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .notice-strip{grid-template-columns:1fr;gap:18px}
  .cta-layout{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 24px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .section{padding:var(--sp-section) 0}
  .cta-band{padding:60px 0}
}
@media (max-width:639px){
  :root{--sp-section:52px}
  .container{padding:0 16px}
  body{font-size:16px}
  .page-kv h1{font-size:28px}
  .section-head h2,.cta-band h2{font-size:22px}
  .card-grid{grid-template-columns:1fr}
  .stats-band{grid-template-columns:1fr 1fr}
  .stat{padding:22px 18px}
  .stat-num{font-size:28px}
  .tl-item{grid-template-columns:32px 1fr;column-gap:16px}
  .tl-node{width:32px;height:32px;font-size:12.5px}
  .timeline::before{left:15px}
  .tl-body{padding:18px;border-radius:12px}
  .tl-body h3{font-size:18px}
  .signup-card{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .card:hover,.tl-body:hover,.btn-primary:hover,.btn-outline:hover,.btn-ghost:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --lime:#C9F227;
  --lime-dim:#B5DC1F;
  --orange:#FF6B35;
  --ink:#0D1114;
  --ink-2:#151A1E;
  --paper:#F5F6F2;
  --paper-2:#ECEEE8;
  --gray:#8A9299;
  --gray-2:#D8DCD6;
  --line:rgba(13,17,20,.10);
  --line-dark:rgba(255,255,255,.10);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --radius-sm:12px;
  --shadow-card:0 1px 2px rgba(13,17,20,.06), 0 10px 28px -12px rgba(13,17,20,.18);
  --shadow-card-hover:0 2px 4px rgba(13,17,20,.08), 0 18px 38px -14px rgba(13,17,20,.26);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;
}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (max-width:639px){.container{padding:0 16px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 10px 24px -12px rgba(201,242,39,.9)}
.btn-primary:hover{background:#D5F74C;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--lime-dim)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--ink);border-color:rgba(13,17,20,.22)}
.btn-outline:hover{border-color:var(--ink);background:rgba(13,17,20,.04);transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
.btn-xs{height:36px;padding:0 16px;font-size:14px;border-radius:var(--radius-sm)}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:2px solid var(--lime);padding-bottom:2px;transition:gap .18s var(--ease),color .18s var(--ease);
}
.text-link:hover{gap:12px;color:#3B4A0A}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(13,17,20,.96);
  border-bottom:1px solid var(--line-dark);
  transition:height .2s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:var(--lime);position:relative;transform:skewX(-12deg);
}
.brand-mark::after{
  content:"";position:absolute;inset:7px 6px;background:var(--ink);border-radius:3px;transform:skewX(12deg);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--lime)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:rgba(255,255,255,.78);padding:6px 0;
  transition:color .18s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-cta{height:46px;padding:0 24px;border-radius:var(--radius-btn);background:var(--lime);color:var(--ink);font-weight:800;font-size:15.5px;display:inline-flex;align-items:center;transition:background-color .18s var(--ease),transform .18s var(--ease)}
.nav-cta:hover{background:#D5F74C;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--line-dark);
  background:transparent;position:relative;cursor:pointer;
}
.nav-toggle span{position:absolute;left:13px;right:13px;height:2px;background:#fff;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:22px}
.nav-toggle span:nth-child(3){top:28px}
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--ink);padding:24px 20px 28px;
  transform:translateX(100%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-dark);background:transparent;color:#fff;font-size:22px;line-height:1;cursor:pointer}
.drawer a.drawer-link{font-size:19px;font-weight:700;color:#fff;padding:14px 4px;border-bottom:1px solid var(--line-dark)}
.drawer a.drawer-link.is-active{color:var(--lime)}
.drawer .drawer-cta{margin-top:auto;padding-top:24px}
@media (max-width:1100px){
  .nav-links{gap:18px}
  .nav-links a{font-size:14.5px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-cta{display:none}
}

/* ---------- 窄 KV ---------- */
.page-hero{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,17,20,.94) 0%,rgba(13,17,20,.78) 46%,rgba(13,17,20,.52) 100%);
}
.hero-stripe{
  position:absolute;top:-40px;right:-120px;width:420px;height:420px;z-index:1;
  background:repeating-linear-gradient(115deg,rgba(201,242,39,.20) 0 12px,transparent 12px 30px);
  transform:rotate(-8deg);pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;padding:64px 0 52px;max-width:760px}
.hero-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;
  background:rgba(201,242,39,.16);color:var(--lime);font-size:13.5px;font-weight:700;letter-spacing:.02em;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:48px;font-weight:800;line-height:1.12;letter-spacing:-.02em;
}
.page-hero .hero-sub{margin-top:16px;font-size:17.5px;line-height:1.75;color:rgba(255,255,255,.82);max-width:620px}
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tabs a{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:700;color:rgba(255,255,255,.84);
  border:1px solid rgba(255,255,255,.22);
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.tabs a:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}
.tabs a.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
@media (max-width:900px){
  .page-hero h1{font-size:36px}
  .page-hero .hero-inner{padding:52px 0 44px}
}
@media (max-width:639px){
  .page-hero h1{font-size:28px}
  .page-hero .hero-sub{font-size:16px}
  .page-hero .hero-inner{padding:44px 0 38px}
}

/* ---------- 数据条 ---------- */
.statbar{background:var(--paper);border-bottom:1px solid var(--line)}
.statbar-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:34px 0;
}
.stat{}
.stat .num{font-size:34px;font-weight:800;line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.stat .num em{font-style:normal;font-size:20px;font-weight:700;margin-left:2px;color:var(--gray)}
.stat .lab{margin-top:8px;font-size:13.5px;color:var(--gray);letter-spacing:.02em}
.stat.accent .num{color:var(--orange)}
@media (max-width:639px){
  .statbar-inner{grid-template-columns:1fr 1fr;gap:20px 16px;padding:26px 0}
  .stat .num{font-size:28px}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.tight{padding:56px 0}
.section.paper2{background:var(--paper-2)}
.section.dark{background:var(--ink);color:#fff}
.eyebrow{
  display:inline-block;font-size:13.5px;font-weight:700;letter-spacing:.02em;color:#5C6600;
  background:rgba(201,242,39,.30);border-radius:6px;padding:4px 10px;margin-bottom:16px;
}
.section.dark .eyebrow{background:rgba(201,242,39,.14);color:var(--lime)}
.section-title{font-size:34px;font-weight:700;line-height:1.24;letter-spacing:-.02em}
.section-desc{margin-top:16px;font-size:16.5px;line-height:1.8;color:#4A5257;max-width:720px}
.section.dark .section-desc{color:rgba(255,255,255,.74)}
.section-head{margin-bottom:36px}
@media (max-width:900px){
  .section{padding:56px 0}
  .section-title{font-size:26px}
}
@media (max-width:639px){
  .section{padding:40px 0}
  .section-title{font-size:22px}
  .section-desc{font-size:15.5px}
}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(13,17,20,.16)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#C9F227,#7FB300)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media.is-empty::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(13,17,20,.12) 0 10px,transparent 10px 24px);
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:21px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:15px;line-height:1.75;color:#4A5257;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.badges{display:flex;flex-wrap:wrap;gap:8px}
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 10px;border-radius:6px;
  font-size:13.5px;font-weight:700;letter-spacing:.02em;
  background:rgba(13,17,20,.06);color:#4A5257;
}
.badge.lime{background:rgba(201,242,39,.34);color:#4C5600}
.badge.orange{background:rgba(255,107,53,.16);color:#B23F12}
.card-foot{margin-top:auto;padding-top:6px}
@media (max-width:1000px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){
  .card-grid,.card-grid.cols-2{grid-template-columns:1fr}
  .card-body h3{font-size:18px}
}

/* ---------- 等级进度 ---------- */
.level-block{background:var(--ink);color:#fff;border-radius:var(--radius-card);padding:40px;border:1px solid var(--line-dark);position:relative;overflow:hidden}
.level-block::before{
  content:"";position:absolute;top:-60px;right:-80px;width:300px;height:300px;
  background:radial-gradient(circle,rgba(201,242,39,.18),transparent 68%);
}
.level-block .level-head{position:relative;display:flex;flex-wrap:wrap;gap:12px;align-items:baseline;justify-content:space-between;margin-bottom:30px}
.level-block h3{font-size:21px;font-weight:600}
.level-block .level-head span{font-size:13.5px;color:rgba(255,255,255,.6);letter-spacing:.02em}
.track{
  position:relative;height:8px;border-radius:999px;background:rgba(255,255,255,.12);margin:0 0 26px;
}
.track .fill{position:absolute;left:0;top:0;bottom:0;width:68%;border-radius:999px;background:var(--lime)}
.track .fill i{position:absolute;right:-9px;top:50%;width:18px;height:18px;margin-top:-9px;border-radius:50%;background:var(--lime);border:3px solid var(--ink);display:block}
.level-nodes{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.level-node{
  background:rgba(255,255,255,.04);border:1px solid var(--line-dark);border-top:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-sm);padding:18px;transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.level-node:hover{transform:translateY(-3px);border-color:rgba(201,242,39,.4)}
.level-node .idx{font-size:13.5px;font-weight:700;color:rgba(255,255,255,.55);letter-spacing:.02em}
.level-node h4{margin-top:8px;font-size:17px;font-weight:700}
.level-node p{margin-top:8px;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.68)}
.level-node.done{background:rgba(255,107,53,.12);border-color:rgba(255,107,53,.42)}
.level-node.done .idx{color:var(--orange)}
.level-node.current{border-color:var(--lime);background:rgba(201,242,39,.10)}
.level-node.current .idx{color:var(--lime)}
@media (max-width:900px){
  .level-block{padding:28px}
  .level-nodes{grid-template-columns:1fr 1fr}
}
@media (max-width:639px){.level-nodes{grid-template-columns:1fr}}

/* ---------- 兑换清单列表 ---------- */
.redeem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.redeem{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.redeem:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover)}
.redeem .tier-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;
  font-size:13.5px;font-weight:700;background:var(--ink);color:var(--lime);
}
.redeem h3{margin-top:16px;font-size:21px;font-weight:600}
.redeem p{margin-top:10px;font-size:15px;color:#4A5257;line-height:1.75}
.redeem ul{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.redeem ul li{position:relative;padding-left:20px;font-size:15px;color:#333A3E}
.redeem ul li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--lime);transform:skewX(-12deg)}
@media (max-width:1000px){.redeem-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.redeem-grid{grid-template-columns:1fr}}

/* ---------- 流程卡片 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.flow:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover)}
.flow .num{font-size:32px;font-weight:800;line-height:1;letter-spacing:-.02em;color:rgba(13,17,20,.14);font-variant-numeric:tabular-nums}
.flow h3{margin-top:14px;font-size:18px;font-weight:700}
.flow p{margin-top:10px;font-size:14.5px;line-height:1.75;color:#4A5257}
.flow::after{
  content:"";position:absolute;right:-14px;top:44px;width:28px;height:2px;background:var(--gray-2);
}
.flow:last-child::after{display:none}
@media (max-width:1000px){
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow:nth-child(2)::after{display:none}
}
@media (max-width:639px){
  .flow-grid{grid-template-columns:1fr}
  .flow::after{display:none}
}

/* ---------- 引用强调 ---------- */
.quote{
  border-left:3px solid var(--lime);background:#fff;border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:26px 28px;box-shadow:var(--shadow-card);
}
.quote p{font-size:17px;line-height:1.85;color:#2C3338}
.quote .who{margin-top:14px;font-size:13.5px;color:var(--gray);letter-spacing:.02em}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.accordion{border:none;background:transparent;margin:0}
.accordion .accordion-item{border:none;background:transparent;margin-bottom:12px}
.accordion .accordion-title{
  display:block;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:20px 56px 20px 22px;font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.accordion .accordion-title:hover{border-color:rgba(13,17,20,.22);box-shadow:var(--shadow-card)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:700;color:var(--ink);line-height:1;transition:color .18s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title{border-color:var(--lime);background:rgba(201,242,39,.10)}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";color:#5C6600}
.accordion .accordion-content{
  border:none;background:transparent;padding:16px 22px 22px;font-size:15px;line-height:1.7;color:#4A5257;
}
.accordion .accordion-content p+p{margin-top:12px}
@media (max-width:639px){
  .accordion .accordion-title{font-size:16px;padding:16px 50px 16px 18px}
  .accordion .accordion-content{padding:12px 18px 18px}
}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--lime);color:var(--ink);padding:80px 0}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-band h2{font-size:34px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.cta-band .cta-note{margin-top:14px;font-size:16.5px;color:#3E4708;max-width:460px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#1C2328;transform:translateY(-1px)}
.cta-band .btn-outline{border-color:rgba(13,17,20,.32);color:var(--ink)}
.cta-band .btn-outline:hover{background:rgba(13,17,20,.06);border-color:var(--ink)}
.form-card{
  background:rgba(255,255,255,.72);border:1px solid rgba(13,17,20,.10);border-radius:var(--radius-card);
  padding:28px;backdrop-filter:none;
}
.form-card h3{font-size:19px;font-weight:700}
.form-card .form-hint{margin-top:8px;font-size:14px;color:#4A5257}
.field{margin-top:18px}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
.field input,.field select{
  width:100%;height:46px;border-radius:10px;border:1px solid rgba(13,17,20,.16);
  background:#fff;color:var(--ink);padding:0 14px;font-size:15.5px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:#9AA1A6}
.field input:focus,.field select:focus{
  border-color:var(--lime);box-shadow:0 0 0 3px rgba(201,242,39,.35);outline:none;
}
.field .err{margin-top:8px;font-size:13.5px;color:var(--orange);display:none}
.field.has-error input,.field.has-error select{border-color:var(--orange)}
.field.has-error .err{display:block}
.form-card .btn{margin-top:22px}
@media (max-width:900px){
  .cta-band{padding:56px 0}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-band h2{font-size:26px}
}
@media (max-width:639px){
  .cta-band{padding:40px 0}
  .cta-band h2{font-size:22px}
  .form-card{padding:22px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.82);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0;
  border-top:1px solid var(--line-dark);
}
.footer-col{padding:32px 28px 8px;border-right:1px solid var(--line-dark)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{border-right:none;padding-right:0}
.footer-col .brand{margin-bottom:14px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-desc{font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.66);max-width:280px}
.footer-key{margin-top:12px;font-size:13.5px;color:rgba(201,242,39,.85);letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-col ul a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:40px;border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.52);letter-spacing:.02em;
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col{padding:26px 18px 8px;border-right:none}
  .footer-col:first-child{padding-left:18px}
  .footer-col:nth-child(odd){border-right:1px solid var(--line-dark)}
}
@media (max-width:639px){
  .site-footer{padding:44px 0 0}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:22px 0}
  .footer-col:nth-child(odd){border-right:none}
  .footer-desc{max-width:none}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --lime:#C9F227;
  --lime-bright:#D9FA4E;
  --lime-deep:#A8CC14;
  --orange:#FF6B35;
  --orange-deep:#C24A16;
  --ink:#0D1114;
  --ink-2:#171D21;
  --paper:#F5F6F2;
  --gray:#8A9299;
  --line:#D8DCD6;
  --white:#ffffff;
  --radius-card:14px;
  --radius-img:12px;
  --shadow-soft:0 1px 2px rgba(13,17,20,.06),0 10px 28px -12px rgba(13,17,20,.18);
  --shadow-hover:0 2px 5px rgba(13,17,20,.08),0 20px 42px -16px rgba(13,17,20,.28);
  --c-max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:inherit;font-family:inherit;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
a:hover,a:focus{color:inherit;}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;margin:0;}
blockquote,figure{margin:0;}
table{border-collapse:collapse;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:4px;
}
.container{width:100%;max-width:var(--c-max);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-light{background:var(--paper);}
.section-white{background:var(--white);}
.section-dark{background:var(--ink);color:#fff;}
.section-tight{padding:56px 0;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 品牌 ============ */
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  position:relative;width:26px;height:26px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--lime) 0%,#8FCB00 100%);
}
.brand-mark::after{
  content:"";position:absolute;left:6px;right:6px;top:7px;bottom:7px;
  background:var(--ink);border-radius:3px;transform:skewX(-14deg);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.01em;color:#fff;line-height:1;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .container{max-width:var(--c-max);}
.nav-inner{
  display:flex;align-items:center;gap:24px;height:72px;
  transition:height .2s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:60px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.76);
  transition:color .18s var(--ease),background .18s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-links a.is-active{color:#fff;font-weight:700;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--lime);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--ink);
  padding:22px 20px 28px;display:flex;flex-direction:column;
  transform:translateY(-102%);opacity:0;visibility:hidden;
  transition:transform .26s var(--ease),opacity .26s var(--ease),visibility .26s var(--ease);
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.1);}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;font-size:22px;line-height:1;cursor:pointer;padding:0;
}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:22px;}
.drawer-links a{
  font-size:19px;font-weight:600;color:rgba(255,255,255,.82);padding:13px 4px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.drawer-links a.is-active{color:var(--lime);}
.drawer-cta{width:100%;height:52px;margin-top:auto;font-size:17px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;font-weight:700;font-size:16px;line-height:1;
  border-radius:999px;padding:0 26px;height:48px;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  text-align:center;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 10px 24px -12px rgba(201,242,39,.9);}
.btn-primary:hover{background:var(--lime-bright);color:var(--ink);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--lime-deep);}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3);}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#232B30;color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(13,17,20,.2);}
.btn-ghost:hover{border-color:var(--ink);background:rgba(13,17,20,.04);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}
.btn-lg{height:54px;padding:0 34px;font-size:17px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 10px;
  border-radius:6px;font-size:13.5px;font-weight:600;letter-spacing:.02em;
  line-height:1;white-space:nowrap;
}
.badge-lime{background:rgba(201,242,39,.22);color:#48630A;}
.badge-orange{background:rgba(255,107,53,.14);color:var(--orange-deep);}
.badge-gray{background:#EAEDE6;color:#5B646B;}
.badge-dark{background:rgba(255,255,255,.08);color:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.12);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;letter-spacing:.06em;
}
.eyebrow-lime{color:var(--lime);}
.eyebrow-lime::before{content:"";width:18px;height:2px;background:var(--lime);border-radius:2px;}
.eyebrow-dark{color:#5B646B;}
.eyebrow-dark::before{content:"";width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* ============ 页面窄 KV ============ */
.page-hero{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  padding:64px 0 44px;min-height:280px;display:flex;align-items:center;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.34;
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,17,20,.97) 0%,rgba(13,17,20,.86) 46%,rgba(13,17,20,.58) 100%);
}
.hero-accent{
  position:absolute;right:-60px;top:-40px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,39,.28),transparent 66%);
}
.hero-inner{position:relative;z-index:2;}
.page-hero h1{
  font-size:48px;font-weight:800;line-height:1.12;letter-spacing:-.02em;
  margin:16px 0 14px;color:#fff;
}
.hero-sub{font-size:18px;color:rgba(255,255,255,.76);max-width:640px;line-height:1.7;}
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.cat-tabs a{
  display:inline-flex;align-items:center;height:42px;padding:0 20px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);font-size:15px;font-weight:500;
  color:rgba(255,255,255,.8);
  transition:all .18s var(--ease);
}
.cat-tabs a:hover{border-color:var(--lime);color:var(--lime);}
.cat-tabs a.is-current{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:700;}

/* ============ 通用排版 ============ */
.section-head{max-width:760px;margin-bottom:34px;}
.section-head h2{
  font-size:34px;font-weight:700;line-height:1.22;letter-spacing:-.015em;
  margin:14px 0 0;
}
.section-head p{margin-top:14px;color:#5B646B;font-size:16.5px;line-height:1.8;}
.section-dark .section-head p{color:rgba(255,255,255,.68);}
.section-dark .section-head h2{color:#fff;}

/* ============ 主体两栏 ============ */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 344px;gap:48px;align-items:start;
}
.main-col{min-width:0;}
.side-col{min-width:0;}
.side-sticky{position:sticky;top:96px;display:grid;gap:20px;}

/* ============ 列表流 ============ */
.flow-list{display:grid;gap:18px;}
.entry{
  display:grid;grid-template-columns:196px minmax(0,1fr);gap:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-soft);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9CFC6;}
.entry-cover{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  aspect-ratio:16/10;background:linear-gradient(135deg,#20302E,#0D1114);
}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.entry:hover .entry-cover img{transform:scale(1.03);}
.entry-num{
  position:absolute;left:10px;top:10px;display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;padding:0 8px;border-radius:6px;
  background:rgba(13,17,20,.78);color:var(--lime);
  font-size:13.5px;font-weight:800;letter-spacing:.02em;
}
.entry-body{min-width:0;display:flex;flex-direction:column;}
.entry-body h3{font-size:21px;font-weight:600;line-height:1.35;margin-bottom:10px;}
.entry-body p{color:#5B646B;font-size:15.5px;line-height:1.78;}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ============ 侧栏 ============ */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-soft);
}
.side-card h3{font-size:18px;font-weight:700;margin-bottom:14px;}
.side-card.is-dark{
  background:var(--ink);color:#fff;border:1px solid rgba(255,255,255,.1);
  box-shadow:0 2px 4px rgba(13,17,20,.2),inset 0 1px 0 rgba(255,255,255,.08);
}
.side-card.is-dark h3{color:#fff;}
.side-card.is-dark p{color:rgba(255,255,255,.7);font-size:15px;}
.check-list{display:grid;gap:12px;}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;color:#3D454B;line-height:1.65;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:8px;
  border-left:2px solid var(--lime-deep);border-bottom:2px solid var(--lime-deep);
  transform:rotate(-45deg);border-radius:1px;
}
.side-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;text-align:center;}
.side-stats .num-val{
  font-size:24px;font-weight:800;line-height:1.1;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.side-stats .num-lab{font-size:13.5px;color:var(--gray);margin-top:6px;letter-spacing:.02em;}
.side-links{display:grid;gap:10px;margin-top:6px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:15px;padding:10px 12px;border-radius:10px;background:#F2F4EF;color:#2A3238;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.side-links a:hover{background:rgba(201,242,39,.28);color:var(--ink);}
.side-links a::after{content:"→";font-size:14px;color:var(--gray);}
.side-card .btn{width:100%;margin-top:16px;}

/* ============ 深底强调区 ============ */
.emphasis-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center;}
.emphasis-grid h2{font-size:34px;font-weight:700;line-height:1.24;color:#fff;margin:16px 0 20px;letter-spacing:-.015em;}
.pull-quote{
  border-left:3px solid var(--lime);padding:6px 0 6px 18px;
  color:rgba(255,255,255,.8);font-size:17px;line-height:1.85;
  background:rgba(255,255,255,.03);border-radius:0 10px 10px 0;
}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.stat-item{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-card);padding:22px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.stat-item .num-val{
  font-size:32px;font-weight:800;line-height:1.1;color:var(--lime);
  font-variant-numeric:tabular-nums;
}
.stat-item .num-lab{font-size:13.5px;color:rgba(255,255,255,.62);margin-top:8px;letter-spacing:.02em;}
.stat-item .num-note{font-size:15px;color:rgba(255,255,255,.78);margin-top:10px;line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{border:none;background:transparent;margin-left:0;}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-soft);
}
.accordion .accordion-title{
  display:block;position:relative;border:none;background:transparent;
  padding:20px 56px 20px 22px;font-size:17px;font-weight:700;color:var(--ink);
  line-height:1.5;transition:background .18s var(--ease),color .18s var(--ease);
}
.accordion .accordion-title:hover{background:rgba(201,242,39,.12);color:var(--ink);}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;line-height:1;color:var(--gray);
  margin:0;padding:0;width:auto;height:auto;background:none;
}
.accordion .is-active > .accordion-title{background:rgba(201,242,39,.14);color:var(--ink);}
.accordion .is-active > .accordion-title::before{content:"–";color:var(--ink);}
.accordion .accordion-content{
  display:none;border:none;background:transparent;
  padding:0 22px 22px;font-size:15px;line-height:1.75;color:#5B646B;
}
.accordion .accordion-content p + p{margin-top:12px;}

/* ============ CTA 带 + 表单 ============ */
.cta-band{background:var(--lime);color:var(--ink);padding:80px 0;}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:56px;align-items:start;}
.cta-band h2{font-size:34px;font-weight:800;line-height:1.2;letter-spacing:-.015em;margin-bottom:14px;}
.cta-band .cta-desc{font-size:17px;color:rgba(13,17,20,.74);max-width:520px;line-height:1.75;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.cta-band .btn-dark{border:1px solid var(--ink);}
.cta-band .btn-ghost{border-color:rgba(13,17,20,.32);color:var(--ink);}
.cta-band .btn-ghost:hover{background:rgba(13,17,20,.08);border-color:var(--ink);}
.form-card{
  background:#fff;border-radius:18px;padding:26px;
  box-shadow:0 2px 6px rgba(13,17,20,.06),0 24px 48px -20px rgba(13,17,20,.3);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.form-card .form-tip{font-size:14px;color:var(--gray);margin-bottom:18px;}
.form-grid{display:grid;gap:14px;}
.field label{display:block;font-size:13.5px;font-weight:600;letter-spacing:.02em;margin-bottom:6px;color:#3D454B;}
.field input,.field select{
  width:100%;height:46px;border-radius:10px;border:1px solid rgba(13,17,20,.18);
  background:#FBFCF9;padding:0 14px;font-size:15.5px;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
  appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,#5B646B 50%),linear-gradient(135deg,#5B646B 50%,transparent 50%);
  background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field input::placeholder{color:#9AA2A8;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--ink);background:#fff;
  box-shadow:0 0 0 3px rgba(201,242,39,.55);
}
.field.has-error input,.field.has-error select{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,53,.2);}
.field-error{display:none;font-size:13.5px;color:var(--orange-deep);margin-top:6px;letter-spacing:.02em;}
.field.has-error .field-error{display:block;}
.form-card .btn{width:100%;margin-top:4px;}
.form-note{font-size:13.5px;color:var(--gray);margin-top:12px;line-height:1.6;}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:rgba(201,242,39,.28);color:#3F5600;font-size:14.5px;font-weight:600;
}
.form-success.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:36px;}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.1);padding-left:32px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--lime);}
.footer-desc{font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.66);margin:16px 0 14px;max-width:280px;}
.footer-key{font-size:13.5px;letter-spacing:.02em;color:var(--lime);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.1);padding-top:20px;
  font-size:13.5px;color:rgba(255,255,255,.48);letter-spacing:.02em;
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:65;
  width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:var(--ink);color:var(--lime);font-size:18px;line-height:1;
  box-shadow:0 10px 24px -10px rgba(13,17,20,.6);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease),background .2s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:#1D252A;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 316px;gap:36px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .page-hero h1{font-size:36px;}
  .section-head h2,.emphasis-grid h2,.cta-band h2{font-size:26px;}
  .layout{grid-template-columns:1fr;gap:40px;}
  .side-sticky{position:static;top:auto;}
  .emphasis-grid{grid-template-columns:1fr;gap:36px;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col + .footer-col{border-left:none;padding-left:0;}
}
@media (max-width:899px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .entry{grid-template-columns:172px minmax(0,1fr);gap:18px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .section-tight{padding:36px 0;}
  .page-hero{padding:44px 0 34px;min-height:240px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .section-head h2,.emphasis-grid h2,.cta-band h2{font-size:22px;}
  .entry{grid-template-columns:1fr;gap:16px;padding:16px;}
  .entry-cover{aspect-ratio:16/9;}
  .entry-body h3{font-size:18px;}
  .stat-grid{grid-template-columns:1fr;gap:14px;}
  .side-stats{grid-template-columns:repeat(3,1fr);gap:8px;}
  .side-stats .num-val{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-desc{max-width:none;}
  .cta-band{padding:48px 0;}
  .form-card{padding:20px;}
  .to-top{right:14px;bottom:16px;width:42px;height:42px;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}