/* roulang page: index */
:root{
  --ink:#10201B;
  --ink-2:#1B322B;
  --lime:#C8F751;
  --orange:#FF5A1F;
  --paper:#F6F5F1;
  --sand:#E7E3D8;
  --sand-2:#EFEDE6;
  --body:#4E554E;
  --muted:#7A827A;
  --line:#D9D5C9;
  --white:#FFFFFF;
  --r-card:12px;
  --r-btn:6px;
  --r-pill:999px;
  --shadow:0 14px 40px rgba(16,32,27,.08);
  --max:1280px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --num:"Inter Tight","HarmonyOS Sans SC",ui-monospace,"SF Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.18}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}
figure{margin:0}
time{font-variant-numeric:tabular-nums}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:120px 0}
.section-alt{background:var(--sand-2)}
.section-dark{background:var(--ink)}

.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--sand);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.12em;line-height:1.5;
}
.tag.on-dark{background:rgba(200,247,81,.14);color:var(--lime)}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}

.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(28px,3.6vw,44px);line-height:1.14}
.section-head p{margin-top:16px;font-size:17px;line-height:1.7;color:var(--body)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;flex-wrap:wrap}

.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;color:var(--ink);font-size:15px;
  border-bottom:2px solid rgba(16,32,27,.2);
  padding-bottom:3px;transition:border-color .2s,color .2s;
}
.text-link .arrow{transition:transform .22s}
.text-link:hover{border-color:var(--ink)}
.text-link:hover .arrow{transform:translateX(4px)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:13px 26px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;transition:background .22s,color .22s,border-color .22s,transform .22s;
}
.btn .arrow{transition:transform .22s}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--lime);color:var(--ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:rgba(16,32,27,.4);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-ghost.on-dark{border-color:rgba(246,245,241,.45);color:var(--paper)}
.btn-ghost.on-dark:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-sm{min-height:42px;padding:9px 18px;font-size:14px}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(10px);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:20px;letter-spacing:-.02em;line-height:1;white-space:nowrap}
.logo .logo-main{font-weight:900;color:var(--ink)}
.logo .logo-sub{font-weight:500;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a.nav-item{
  display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:#33403a;
  transition:background .2s,color .2s;
}
.nav-links a.nav-item:hover{background:var(--sand);color:var(--ink)}
.nav-links a.nav-item.active{background:var(--ink);color:var(--lime);font-weight:700}
.nav-cta{margin-left:12px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--paper);color:var(--ink);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.m-drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--paper);
  padding:88px 20px 32px;
  display:none;flex-direction:column;
  overflow-y:auto;
}
.m-drawer.is-open{display:flex}
.m-drawer .drawer-close{
  position:absolute;top:18px;right:20px;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--ink);background:var(--paper);
}
.m-drawer a.drawer-link{
  display:block;padding:18px 0;border-bottom:1px solid var(--line);
  font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.01em;
}
.m-drawer a.drawer-link.active{color:var(--ink)}
.m-drawer a.drawer-link.active::after{content:"·";color:var(--orange);margin-left:8px}
.m-drawer .btn{width:100%;margin-top:28px}

/* ===== Hero ===== */
.hero{position:relative;min-height:100svh;min-height:640px;display:flex;align-items:center;overflow:hidden;background:var(--ink);isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;opacity:.5}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(16,32,27,.95) 12%,rgba(16,32,27,.72) 52%,rgba(16,32,27,.42) 100%);
}
.hero-inner{width:100%;padding-top:120px;padding-bottom:110px}
.hero-copy{max-width:820px}
.hero h1{
  margin-top:24px;
  color:var(--paper);
  font-size:clamp(34px,5.4vw,72px);
  line-height:1.08;
  letter-spacing:-.03em;
  font-weight:900;
}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-sub{margin-top:22px;max-width:560px;color:rgba(246,245,241,.82);font-size:18px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;margin-top:56px;max-width:760px;
  border-top:1px solid rgba(246,245,241,.18);
  padding-top:28px;
}
.hero-stats > div{padding-right:24px}
.hero-stats b{display:block;font-family:var(--num);font-size:clamp(24px,2.6vw,34px);font-weight:800;color:var(--lime);letter-spacing:-.02em}
.hero-stats span{display:block;margin-top:4px;font-size:13px;color:rgba(246,245,241,.7);letter-spacing:.04em}
.scroll-hint{
  position:absolute;right:24px;bottom:28px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:rgba(246,245,241,.6);
}
.scroll-hint::after{content:"";width:1px;height:34px;background:linear-gradient(rgba(246,245,241,.1),rgba(200,247,81,.9))}

/* ===== Selling points ===== */
.selling-grid{display:grid;grid-template-columns:3fr 9fr;gap:56px;align-items:start}
.selling-head{position:sticky;top:108px;max-width:340px}
.selling-head h2{margin-top:20px;font-size:clamp(26px,3vw,38px);line-height:1.16}
.selling-head p{margin-top:16px;font-size:16px;line-height:1.7}
.sell-item{
  display:flex;gap:24px;padding:30px 8px 30px 0;
  border-top:1px solid var(--line);
  transition:transform .26s,background .26s;
}
.sell-item:last-child{border-bottom:1px solid var(--line)}
.sell-item .num{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-btn);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--num);font-size:15px;font-weight:800;
  background:var(--sand);color:var(--ink);
  transition:background .26s,color .26s;
}
.sell-item h3{font-size:20px;margin-bottom:8px}
.sell-item p{font-size:15.5px;line-height:1.7;max-width:640px}
.sell-item:hover{transform:translateX(6px)}
.sell-item:hover .num{background:var(--lime);color:var(--ink)}

/* ===== Demo / zigzag ===== */
.zig-row{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.zig-row + .zig-row{margin-top:96px}
.zig-row.reverse .zig-media{order:2}
.zig-media{overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);background:var(--sand)}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.zig-body h2{margin-top:18px;font-size:clamp(26px,3vw,38px);line-height:1.16}
.zig-body > p{margin-top:16px;font-size:16.5px;line-height:1.72}
.steps{margin-top:32px;position:relative}
.step{display:flex;gap:18px;padding-bottom:26px;position:relative}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:17px;top:38px;bottom:0;width:1px;background:var(--line);
}
.step:last-child::before{display:none}
.step .dot{
  flex:0 0 auto;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--num);font-weight:800;font-size:14px;
  background:var(--paper);border:1px solid var(--line);color:var(--ink);
  position:relative;z-index:1;transition:background .22s,color .22s,border-color .22s;
}
.step h3{font-size:18px;margin-bottom:6px}
.step p{font-size:15px;line-height:1.65}
.step.is-key .dot{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.step.is-key h3{color:var(--ink)}

/* ===== Proof ===== */
.stats-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.stat-cell{background:var(--paper);padding:34px 26px}
.stat-cell b{
  display:block;font-family:var(--num);
  font-size:clamp(28px,3.4vw,44px);font-weight:800;
  color:var(--ink);letter-spacing:-.03em;line-height:1.1;
}
.stat-cell span{display:block;margin-top:8px;font-size:13px;color:var(--muted);letter-spacing:.06em}
.logo-wall{
  display:grid;grid-template-columns:repeat(6,minmax(0,1fr));
  gap:1px;margin-top:48px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.logo-wall span{
  padding:26px 12px;text-align:center;
  font-size:14px;font-weight:700;color:var(--muted);
  letter-spacing:.02em;filter:grayscale(1);opacity:.72;
  transition:color .22s,opacity .22s,filter .22s;
  border-right:1px solid var(--line);
}
.logo-wall span:last-child{border-right:0}
.logo-wall span:hover{color:var(--ink);opacity:1;filter:none}
.quote-card{
  margin:64px auto 0;max-width:820px;text-align:center;
  padding:48px 40px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper);
}
.quote-card blockquote{
  margin:0;font-size:clamp(18px,2vw,23px);line-height:1.7;color:var(--ink);font-weight:700;letter-spacing:-.01em;
}
.quote-card figcaption{margin-top:20px;font-size:14px;color:var(--muted)}
.quote-card figcaption b{color:var(--ink)}

/* ===== Price ===== */
.price-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.price-card{
  position:relative;padding:40px 36px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--paper);
  transition:box-shadow .26s,transform .26s;
}
.price-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.price-card.featured{background:var(--ink);border-color:var(--ink);color:rgba(246,245,241,.78)}
.price-card.featured h3,.price-card.featured .price-num{color:var(--paper)}
.price-card h3{font-size:22px}
.price-card .price-desc{margin-top:10px;font-size:15px;line-height:1.6;min-height:48px}
.price-num{font-family:var(--num);font-size:clamp(34px,4vw,50px);font-weight:800;letter-spacing:-.03em;margin-top:24px;color:var(--ink);line-height:1.1}
.price-num small{font-size:15px;font-weight:600;letter-spacing:0;color:var(--muted);margin-left:6px;font-family:var(--font)}
.price-card.featured .price-num small{color:rgba(246,245,241,.6)}
.price-list{margin-top:28px;border-top:1px solid var(--line)}
.price-card.featured .price-list{border-color:rgba(246,245,241,.18)}
.price-list li{
  display:flex;gap:12px;padding:14px 0;
  border-bottom:1px solid var(--line);font-size:15px;line-height:1.6;
}
.price-list li:last-child{border-bottom:0}
.price-card.featured .price-list li{border-color:rgba(246,245,241,.14)}
.price-list li::before{content:"✓";color:var(--orange);font-weight:800;flex:0 0 auto}
.price-card .btn{width:100%;margin-top:28px}
.price-card.featured .btn-primary{background:var(--lime);color:var(--ink)}
.price-card.featured .btn-primary:hover{background:var(--paper)}
.badge-rec{
  position:absolute;top:22px;right:22px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:800;letter-spacing:.1em;
}
.price-strip{
  margin-top:24px;padding:28px 32px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--sand);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.price-strip h3{font-size:20px}
.price-strip p{margin-top:6px;font-size:15px}

/* ===== News (CMS) ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-bar span{
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--body);
  background:var(--paper);transition:background .2s,color .2s,border-color .2s;
}
.filter-bar span.is-on{background:var(--ink);border-color:var(--ink);color:var(--lime)}
.filter-bar span:hover{border-color:var(--ink);color:var(--ink)}
.news-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:start}
.news-lead{
  display:block;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--paper);
  transition:box-shadow .26s,transform .26s;
}
.news-lead:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.news-lead-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-lead-body{padding:26px 28px 30px}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.chip{
  display:inline-block;padding:3px 11px;border-radius:var(--r-pill);
  background:rgba(255,90,31,.1);color:#B33A0D;
  font-size:12px;font-weight:700;letter-spacing:.04em;
}
.news-lead-body h3{margin-top:12px;font-size:22px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead-body p{margin-top:12px;font-size:15px;line-height:1.7;color:var(--body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-rows{display:flex;flex-direction:column}
.news-row{
  display:grid;grid-template-columns:104px 1fr 24px;gap:18px;align-items:center;
  padding:20px 4px;border-top:1px solid var(--line);
  transition:background .2s,transform .2s;
}
.news-row:last-child{border-bottom:1px solid var(--line)}
.news-row:hover{transform:translateX(4px)}
.news-row-meta{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--muted)}
.news-row h4{font-size:16.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row p{margin-top:5px;font-size:14px;line-height:1.6;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-arrow{color:var(--ink);font-size:18px;transition:transform .22s}
.news-row:hover .news-arrow{transform:translateX(4px)}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:var(--paper);
}
.news-empty p{font-size:16px;color:var(--muted)}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper);margin-bottom:12px;overflow:hidden;transition:box-shadow .24s}
.faq-item.is-open{box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;
  padding:22px 24px;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q .idx{font-family:var(--num);font-size:13px;color:var(--muted);font-weight:700;flex:0 0 auto;letter-spacing:.04em}
.faq-q .sign{
  margin-left:auto;flex:0 0 auto;position:relative;
  width:20px;height:20px;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:transform .24s,opacity .24s;
}
.faq-q .sign::before{width:14px;height:2px}
.faq-q .sign::after{width:2px;height:14px}
.faq-item.is-open .sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 24px 24px 63px;font-size:15.5px;line-height:1.78;color:var(--body)}
.faq-item.is-open .faq-a{max-height:400px}

/* ===== Contact CTA ===== */
.cta-block{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:var(--ink);padding:72px 64px;isolation:isolate;
}
.cta-bg{position:absolute;inset:0;z-index:-2;background-image:url(/assets/images/backpic/back-3.webp);background-size:cover;background-position:center;opacity:.24}
.cta-block::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(95deg,rgba(16,32,27,.92),rgba(16,32,27,.62))}
.cta-inner{display:grid;grid-template-columns:1fr 460px;gap:56px;align-items:center}
.cta-text h2{color:var(--paper);font-size:clamp(28px,3.6vw,46px);line-height:1.14}
.cta-text p{margin-top:18px;color:rgba(246,245,241,.78);font-size:16.5px;line-height:1.7;max-width:520px}
.cta-form{display:flex;flex-direction:column;gap:22px}
.field label{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(246,245,241,.62);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid rgba(246,245,241,.32);
  padding:10px 2px;color:var(--paper);font-size:16px;font-family:inherit;line-height:1.6;
  transition:border-color .22s;
}
.field textarea{resize:vertical;min-height:76px}
.field input::placeholder,.field textarea::placeholder{color:rgba(246,245,241,.34)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--lime)}
.cta-form .btn{width:100%;margin-top:6px}
.cta-form .btn-primary{background:var(--lime);color:var(--ink)}
.cta-form .btn-primary:hover{background:var(--paper)}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:rgba(246,245,241,.68);padding:88px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-brand .logo{font-size:22px}
.footer-brand .logo .logo-main{color:var(--paper)}
.footer-brand .logo .logo-sub{color:rgba(246,245,241,.55)}
.footer-brand p{margin-top:18px;font-size:15px;line-height:1.75;max-width:320px;color:rgba(246,245,241,.62)}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--lime);margin-bottom:18px;font-weight:700}
.footer-col a,.footer-col span{display:block;padding:7px 0;font-size:15px;color:rgba(246,245,241,.68);transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--paper);transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(246,245,241,.14);
  padding:24px 0 32px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,245,241,.45);
}

/* ===== Floating CTA ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--lime);
  font-size:15px;font-weight:700;
  box-shadow:0 12px 32px rgba(16,32,27,.24);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .28s,transform .28s,visibility .28s,background .22s,color .22s,bottom .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--lime);color:var(--ink)}
.float-cta.is-lifted{bottom:120px}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.in-view{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:88px 0}
  .hero-inner{padding-top:100px;padding-bottom:88px}
  .selling-grid{grid-template-columns:1fr;gap:36px}
  .selling-head{position:static;max-width:none}
  .zig-row{grid-template-columns:1fr;gap:32px}
  .zig-row.reverse .zig-media{order:0}
  .zig-row + .zig-row{margin-top:64px}
  .stats-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .logo-wall{grid-template-columns:repeat(3,minmax(0,1fr))}
  .logo-wall span:nth-child(3n){border-right:0}
  .price-grid{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr;gap:28px}
  .cta-block{padding:52px 32px}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .section-head{margin-bottom:28px}
  .nav{height:66px}
  .logo{font-size:17px}
  .hero{min-height:auto}
  .hero-inner{padding-top:72px;padding-bottom:64px}
  .hero h1{font-size:clamp(30px,8.4vw,40px)}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr;gap:0;margin-top:40px}
  .hero-stats > div{padding:14px 0;border-bottom:1px solid rgba(246,245,241,.14)}
  .hero-stats > div:last-child{border-bottom:0}
  .scroll-hint{display:none}
  .sell-item{gap:16px;padding:24px 0}
  .sell-item h3{font-size:18px}
  .quote-card{padding:32px 22px}
  .price-card{padding:30px 22px}
  .price-strip{padding:22px}
  .news-row{grid-template-columns:1fr;gap:8px;padding:18px 2px}
  .news-row-meta{flex-direction:row;align-items:center;gap:10px}
  .news-arrow{display:none}
  .faq-q{font-size:15.5px;padding:18px 18px;gap:12px}
  .faq-a p{padding:0 18px 18px 18px}
  .cta-block{padding:40px 22px;border-radius:var(--r-card)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{font-size:12px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    justify-content:center;padding:16px 20px;
    padding-bottom:calc(16px + env(safe-area-inset-bottom));
  }
  .float-cta.is-lifted{bottom:0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#10201B;
  --ink-soft:#1B2F28;
  --lime:#C8F751;
  --orange:#FF5A1F;
  --paper:#F6F5F1;
  --sand:#E7E3D8;
  --text:#4E554E;
  --line:#D9D5C9;
  --white:#FFFFFF;
  --r-card:12px;
  --r-btn:6px;
  --r-pill:999px;
  --shadow-hover:0 14px 40px rgba(16,32,27,.08);
  --max:1280px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.18;}
button{font-family:inherit;cursor:pointer;}
input,button,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
[id]{scroll-margin-top:100px;}

/* ---------- layout ---------- */
.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad);}
.section{padding:120px 0;}
.section-tight{padding:96px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  font-weight:700;color:var(--ink);
  background:var(--sand);border-radius:var(--r-pill);
  padding:7px 16px;margin-bottom:20px;
}
.eyebrow.on-dark{background:rgba(200,247,81,.14);color:var(--lime);}
.section-title{font-size:clamp(28px,3.4vw,44px);line-height:1.14;}
.section-desc{font-size:17px;line-height:1.7;color:var(--text);margin-top:16px;max-width:680px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:20px;letter-spacing:-.02em;white-space:nowrap;}
.logo-main{font-weight:900;color:var(--ink);}
.logo-sub{font-weight:500;color:var(--ink);opacity:.62;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-item{
  padding:10px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--ink);opacity:.72;
  transition:background .2s ease,opacity .2s ease,transform .2s ease;
}
.nav-item:hover{opacity:1;background:var(--sand);color:var(--ink);}
.nav-item.active{opacity:1;background:var(--ink);color:var(--paper);}
.nav-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:var(--white);position:relative;
}
.nav-toggle span{position:absolute;left:13px;right:13px;top:50%;height:2px;background:var(--ink);transform:translateY(-50%);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--ink);transition:transform .2s ease,top .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:55;
  background:var(--paper);padding:20px var(--pad) 40px;
  display:none;flex-direction:column;overflow:auto;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer a.drawer-link{
  font-size:24px;font-weight:800;color:var(--ink);
  padding:18px 0;border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--orange);}
.mobile-drawer .btn{margin-top:28px;width:100%;justify-content:center;font-size:17px;padding:16px 20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn .arrow{transition:transform .22s ease;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--lime);color:var(--ink);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-light{background:var(--lime);color:var(--ink);}
.btn-light:hover{background:var(--paper);color:var(--ink);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:var(--paper);border-color:rgba(246,245,241,.5);}
.btn-outline-light:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);transform:translateY(-2px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px;}
.text-link .arrow{transition:transform .22s ease;}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:104px 0 0;
  color:var(--paper);
  background:
    linear-gradient(104deg,rgba(16,32,27,.96) 0%,rgba(16,32,27,.86) 48%,rgba(16,32,27,.62) 100%),
    url(/assets/images/backpic/back-1.png) center/cover no-repeat;
}
.page-hero .hero-inner{max-width:880px;padding-bottom:64px;}
.hero-title{
  font-size:clamp(38px,5.4vw,66px);
  line-height:1.08;
  color:var(--paper);
  font-weight:900;
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero-sub{font-size:clamp(16px,1.6vw,19px);line-height:1.7;color:rgba(246,245,241,.84);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.info-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(246,245,241,.16);
  border:1px solid rgba(246,245,241,.18);
  border-radius:var(--r-card);
  overflow:hidden;
  transform:translateY(50%);
  margin-bottom:-52px;
  position:relative;
  z-index:5;
}
.strip-item{background:var(--ink-soft);padding:22px 24px;}
.strip-item strong{
  display:block;font-size:clamp(22px,2.4vw,30px);font-weight:900;color:var(--lime);
  letter-spacing:-.02em;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.strip-item span{display:block;margin-top:6px;font-size:13px;color:rgba(246,245,241,.72);letter-spacing:.02em;}

/* ---------- main layout ---------- */
.main-wrap{padding-top:132px;padding-bottom:120px;}
.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:56px;align-items:start;}
.side-nav{position:sticky;top:104px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:14px;}
.side-nav h2{
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text);font-weight:700;padding:10px 14px 12px;
}
.side-nav a{
  display:block;padding:12px 14px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--ink);opacity:.78;
  transition:background .2s ease,opacity .2s ease,padding-left .2s ease;
}
.side-nav a:hover{background:var(--sand);opacity:1;padding-left:18px;}
.side-nav a.is-current{background:var(--ink);color:var(--paper);opacity:1;}
.side-nav .side-note{
  margin-top:12px;border-top:1px solid var(--line);padding:16px 14px 8px;
  font-size:13px;line-height:1.7;color:var(--text);
}
.side-nav .side-note strong{color:var(--ink);display:block;margin-bottom:4px;}

/* ---------- numbered list ---------- */
.num-list{border-top:1px solid var(--line);}
.num-item{
  display:grid;grid-template-columns:64px minmax(0,1fr) 32px;
  gap:20px;align-items:start;
  padding:30px 4px;border-bottom:1px solid var(--line);
  transition:transform .24s ease,background .24s ease;
}
.num-item:hover{transform:translateX(6px);}
.num-index{
  font-size:15px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
  background:var(--sand);border-radius:var(--r-pill);
  width:44px;height:32px;display:inline-flex;align-items:center;justify-content:center;
  transition:background .24s ease,color .24s ease;
}
.num-item:hover .num-index{background:var(--lime);color:var(--ink);}
.num-title{font-size:clamp(19px,2vw,23px);margin-bottom:8px;}
.num-desc{font-size:16px;line-height:1.75;color:var(--text);}
.num-arrow{
  font-size:20px;color:var(--ink);opacity:.32;
  transition:transform .24s ease,opacity .24s ease;
  line-height:1.4;
}
.num-item:hover .num-arrow{opacity:1;transform:translateX(4px);}

/* ---------- event cards ---------- */
.event-grid-wrap{padding:0 10px;}
.event-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.event-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink);}
.event-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--sand);}
.event-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.event-card:hover figure img{transform:scale(1.04);}
.event-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--sand);color:var(--ink);
  width:max-content;
}
.tag.accent{background:rgba(255,90,31,.12);color:var(--orange);}
.tag.lime{background:rgba(200,247,81,.32);color:var(--ink);}
.event-body h3{font-size:20px;}
.event-body p{font-size:15px;line-height:1.72;color:var(--text);}
.event-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text);}
.event-meta span{display:inline-flex;align-items:center;gap:6px;}
.event-meta b{color:var(--ink);font-weight:800;font-variant-numeric:tabular-nums;}

/* ---------- flow steps ---------- */
.flow{background:var(--ink);color:var(--paper);}
.flow .section-title{color:var(--paper);}
.flow .section-desc{color:rgba(246,245,241,.76);}
.flow .eyebrow{background:rgba(200,247,81,.14);color:var(--lime);}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px;}
.step{
  position:relative;padding:28px 26px 4px 0;border-top:1px solid rgba(246,245,241,.22);
}
.step::before{
  content:"";position:absolute;top:-5px;left:0;
  width:9px;height:9px;border-radius:50%;
  background:rgba(246,245,241,.38);
}
.step.is-key::before{background:var(--lime);box-shadow:0 0 0 6px rgba(200,247,81,.16);}
.step-num{font-size:12px;letter-spacing:.14em;font-weight:800;color:var(--lime);display:block;margin-bottom:12px;}
.step h3{font-size:19px;color:var(--paper);margin-bottom:8px;}
.step p{font-size:15px;line-height:1.72;color:rgba(246,245,241,.72);}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--white);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item.is-open{border-color:var(--ink);box-shadow:var(--shadow-hover);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 24px;background:transparent;border:0;color:var(--ink);
  font-size:17px;font-weight:700;line-height:1.5;
}
.faq-q .faq-idx{font-size:13px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:.08em;flex:0 0 auto;}
.faq-q .faq-sign{margin-left:auto;flex:0 0 auto;font-size:22px;font-weight:400;color:var(--ink);line-height:1;transition:transform .24s ease;}
.faq-item.is-open .faq-sign{transform:rotate(45deg);color:var(--orange);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 24px 24px 60px;font-size:16px;line-height:1.78;color:var(--text);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;color:var(--paper);
  background:
    linear-gradient(102deg,rgba(16,32,27,.96) 0%,rgba(16,32,27,.82) 52%,rgba(16,32,27,.6) 100%),
    url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  padding:104px 0;
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;}
.cta-title{font-size:clamp(30px,3.8vw,50px);color:var(--paper);line-height:1.12;margin-bottom:18px;}
.cta-desc{font-size:17px;line-height:1.75;color:rgba(246,245,241,.8);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.cta-panel{
  background:rgba(246,245,241,.07);
  border:1px solid rgba(246,245,241,.2);
  border-radius:var(--r-card);
  padding:32px;
  backdrop-filter:blur(4px);
}
.cta-panel h3{color:var(--paper);font-size:19px;margin-bottom:18px;}
.cta-panel ul li{
  display:flex;gap:12px;padding:13px 0;
  border-bottom:1px solid rgba(246,245,241,.14);
  font-size:15px;color:rgba(246,245,241,.84);line-height:1.65;
}
.cta-panel ul li:last-child{border-bottom:0;}
.cta-panel ul li b{color:var(--lime);font-weight:900;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,245,241,.72);padding:80px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-main{color:var(--paper);}
.footer-brand .logo-sub{color:rgba(246,245,241,.6);}
.footer-brand p{font-size:15px;line-height:1.8;max-width:340px;color:rgba(246,245,241,.66);}
.footer-col h4{color:var(--paper);font-size:14px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px;font-weight:800;}
.footer-col a,.footer-col span{display:block;font-size:15px;line-height:1.9;color:rgba(246,245,241,.7);margin-bottom:8px;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--lime);padding-left:4px;}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(246,245,241,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(246,245,241,.5);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .layout{grid-template-columns:250px minmax(0,1fr);gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .layout{grid-template-columns:1fr;gap:32px;}
  .side-nav{position:static;}
  .side-nav a{display:inline-flex;margin:0 6px 6px 0;padding:10px 16px;border:1px solid var(--line);border-radius:var(--r-pill);}
  .side-nav a:hover{padding-left:16px;background:var(--sand);}
  .side-nav h2{padding:6px 4px 12px;}
  .side-nav .side-note{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);gap:0 24px;}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .main-wrap{padding-top:112px;padding-bottom:88px;}
  .section{padding:80px 0;}
  .section-tight{padding:72px 0;}
  .page-hero{padding-top:80px;}
  .info-strip{transform:translateY(40%);margin-bottom:-42px;}
  .strip-item{padding:18px 18px;}
}
@media (max-width:767px){
  :root{--pad:20px;}
  .info-strip{grid-template-columns:repeat(2,1fr);}
  .num-item{grid-template-columns:48px minmax(0,1fr);gap:14px;}
  .num-arrow{display:none;}
  .num-index{width:40px;height:28px;font-size:13px;}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding-right:0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-panel{padding:24px;}
  .faq-a-inner{padding-left:24px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
}
@media (max-width:519px){
  .hero-title{font-size:34px;}
  .nav{height:68px;}
  .mobile-drawer{top:68px;}
  .main-wrap{padding-top:96px;}
  .num-title{font-size:18px;}
  .cta-actions .btn{width:100%;justify-content:center;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#10201B;
  --ink-soft:#1B2E28;
  --lime:#C8F751;
  --orange:#FF5A1F;
  --paper:#F6F5F1;
  --card:#FFFFFF;
  --sand:#E7E3D8;
  --text:#4E554E;
  --muted:#7C847C;
  --line:#D9D5C9;
  --r-lg:12px;
  --r-sm:6px;
  --r-pill:999px;
  --container:1280px;
  --shadow:0 14px 40px rgba(16,32,27,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-num:"Inter Tight","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --section-y:120px;
}
*,*::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:16px;line-height:1.75;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p,figure{margin:0;}
body.no-scroll{overflow:hidden;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--section-y) 0;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:120;background:var(--paper);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px;}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:21px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.logo-main{font-weight:900;}
.logo-sub{font-weight:500;color:var(--text);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-item{padding:9px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--text);transition:background .2s var(--ease),color .2s var(--ease);white-space:nowrap;}
.nav-item:hover{background:var(--sand);color:var(--ink);}
.nav-item.active{background:var(--ink);color:var(--paper);}
.nav-cta{margin-left:10px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);align-items:center;justify-content:center;transition:background .2s var(--ease);}
.nav-toggle:hover{background:var(--sand);}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:var(--r-sm);border:1px solid transparent;font-size:15px;font-weight:700;line-height:1.2;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);}
.btn .arrow{display:inline-block;transition:transform .22s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--lime);color:var(--ink);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-sm{padding:9px 16px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--ink);transition:color .2s var(--ease);}
.link-arrow span{transition:transform .22s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}
.link-arrow:hover{color:var(--orange);}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:12px;font-weight:700;letter-spacing:.12em;line-height:1.4;}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-soft{background:var(--sand);color:var(--ink);}
.badge-orange{background:var(--orange);color:#fff;}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--ink);color:var(--paper);padding:64px 0 60px;}
.article-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;opacity:.16;}
.article-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(246,245,241,.12);}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:1.5;color:rgba(246,245,241,.7);margin-bottom:24px;}
.breadcrumb a{color:rgba(246,245,241,.7);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{max-width:340px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.article-title{font-size:clamp(32px,4.4vw,52px);line-height:1.2;font-weight:900;letter-spacing:-.02em;color:var(--paper);max-width:960px;margin:18px 0 24px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:rgba(246,245,241,.72);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(246,245,241,.4);}
.article-meta strong{color:var(--lime);font-weight:700;}

/* ---------- article layout ---------- */
.article-wrap{padding:72px 0 96px;}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:64px;justify-content:center;align-items:start;}
.article-main{min-width:0;}

.article-content{font-size:17px;line-height:1.85;color:var(--text);word-break:break-word;}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.2em;}
.article-content h2{margin:2em 0 .8em;padding-left:16px;border-left:4px solid var(--lime);font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.01em;color:var(--ink);scroll-margin-top:110px;}
.article-content h3{margin:1.8em 0 .6em;font-size:21px;line-height:1.4;font-weight:800;color:var(--ink);scroll-margin-top:110px;}
.article-content h4{margin:1.6em 0 .5em;font-size:18px;font-weight:800;color:var(--ink);}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:12px;}
.article-content li{position:relative;margin-bottom:.55em;padding-left:20px;}
.article-content ul > li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--lime);}
.article-content ol{list-style:decimal;padding-left:24px;}
.article-content ol > li{padding-left:6px;}
.article-content ol > li::before{content:none;}
.article-content blockquote{margin:1.6em 0;padding:20px 24px;background:var(--sand);border-left:3px solid var(--ink);border-radius:0 var(--r-lg) var(--r-lg) 0;color:var(--ink);}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-lg);margin:1.6em 0;}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{font-size:13px;line-height:1.5;color:var(--muted);text-align:center;margin-top:10px;}
.article-content a{color:var(--ink);font-weight:600;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;text-decoration-color:var(--lime);transition:background .2s var(--ease);}
.article-content a:hover{background:var(--lime);text-decoration-color:transparent;}
.article-content table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-content th{background:var(--sand);color:var(--ink);font-weight:700;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-content strong{color:var(--ink);}
.article-content code{padding:2px 6px;border-radius:4px;background:var(--sand);font-family:var(--font-num);font-size:.92em;color:var(--ink);}

/* ---------- empty state ---------- */
.empty-state{border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--card);padding:56px 32px;text-align:center;}
.empty-state h2{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:12px;}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:24px;}

/* ---------- aside / toc ---------- */
.article-aside{min-width:0;}
.toc{position:sticky;top:100px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 20px;}
.toc h3{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;}
.toc-list.is-hidden{display:none;}
.toc-link{display:block;font-size:14px;line-height:1.5;color:var(--text);padding:8px 0 8px 10px;border-left:2px solid var(--line);transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
.toc-link:hover,.toc-link.is-active{color:var(--ink);border-left-color:var(--lime);background:rgba(200,247,81,.16);}
.toc-link-sub{padding-left:22px;font-size:13px;}
.toc-empty{display:none;font-size:13px;line-height:1.6;color:var(--muted);}
.toc-empty.is-show{display:block;}
.to-top{margin-top:18px;width:100%;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:14px;font-weight:600;color:var(--ink);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);}
.to-top:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}

/* ---------- tags ---------- */
.article-foot{margin-top:48px;padding-top:32px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.article-foot .foot-label{font-size:13px;color:var(--muted);margin-right:4px;}
.tag{padding:7px 14px;border-radius:var(--r-pill);background:var(--sand);font-size:13px;color:var(--ink);transition:background .2s var(--ease),transform .2s var(--ease);}
.tag:hover{background:var(--lime);transform:translateY(-2px);}

/* ---------- related ---------- */
.related{padding:0 0 var(--section-y);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head .head-text h2{font-size:clamp(28px,3.4vw,44px);line-height:1.12;font-weight:900;letter-spacing:-.02em;color:var(--ink);}
.section-head .head-text p{margin-top:12px;font-size:15px;color:var(--muted);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#C9C4B4;}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--sand);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-card .card-meta{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.08em;color:var(--muted);}
.post-card h3{font-size:19px;line-height:1.4;font-weight:800;color:var(--ink);}
.post-card p{font-size:14px;line-height:1.7;color:var(--muted);}

/* ---------- pager ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:32px;}
.pager a{display:flex;flex-direction:column;gap:6px;padding:20px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.pager a:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow);}
.pager .pager-key{font-size:12px;letter-spacing:.12em;color:var(--muted);}
.pager .pager-title{font-size:17px;line-height:1.4;font-weight:700;color:var(--ink);}
.pager .next{align-items:flex-end;text-align:right;}
.pager-back{display:flex;justify-content:center;}

/* ---------- cta band ---------- */
.cta-section{padding:0 0 var(--section-y);}
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--paper);border-radius:var(--r-lg);padding:56px;}
.cta-band::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;opacity:.18;}
.cta-band .inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:40px;}
.cta-band h2{font-size:clamp(26px,3vw,38px);line-height:1.15;font-weight:900;letter-spacing:-.02em;max-width:620px;}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.75;color:rgba(246,245,241,.75);max-width:580px;}
.cta-band .btn-primary{background:var(--lime);color:var(--ink);white-space:nowrap;}
.cta-band .btn-primary:hover{background:var(--paper);color:var(--ink);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,245,241,.75);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(246,245,241,.14);}
.footer-brand .logo{color:var(--paper);margin-bottom:16px;font-size:20px;}
.footer-brand .logo-sub{color:rgba(246,245,241,.7);}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--paper);margin-bottom:16px;}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:1.6;margin-bottom:10px;color:rgba(246,245,241,.72);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:24px;font-size:13px;color:rgba(246,245,241,.55);}

/* ---------- mobile drawer ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:200;display:none;flex-direction:column;gap:6px;padding:88px 24px 32px;background:var(--paper);overflow-y:auto;}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink);}
.drawer-link{font-size:24px;font-weight:800;color:var(--ink);padding:14px 0;border-bottom:1px solid var(--line);}
.drawer-link:hover{color:var(--orange);}
.drawer-cta{margin-top:28px;width:100%;padding:16px;font-size:16px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,700px) 250px;gap:48px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-aside{order:-1;}
  .toc{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band .inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
}
@media (max-width:640px){
  :root{--section-y:72px;}
  .container{padding:0 20px;}
  .nav{height:66px;}
  .logo{font-size:19px;}
  .article-hero{padding:40px 0 36px;}
  .article-title{margin:16px 0 18px;max-width:none;}
  .breadcrumb .current{max-width:200px;}
  .article-wrap{padding:48px 0 64px;}
  .article-content{font-size:16px;}
  .article-content h2{margin-top:1.8em;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager .next{align-items:flex-start;text-align:left;}
  .cta-band{padding:32px 24px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-foot{margin-top:36px;padding-top:24px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --ink:#10201B;
  --ink-soft:#1B2E27;
  --lime:#C8F751;
  --orange:#FF5A1F;
  --paper:#F6F5F1;
  --sand:#E7E3D8;
  --text:#4E554E;
  --line:#D9D5C9;
  --white:#FFFFFF;
  --radius-card:12px;
  --radius-btn:6px;
  --radius-pill:999px;
  --container:1280px;
  --pad:24px;
  --gutter:24px;
  --section:120px;
  --shadow-hover:0 14px 40px rgba(16,32,27,.08);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter Tight","SF Mono",ui-monospace,"Segoe UI Mono",monospace;
}

/* ============ 基础重置 ============ */
*,*::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:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.18;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,opacity .2s ease;}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}
::selection{background:var(--lime);color:var(--ink);}

/* ============ 容器与板块 ============ */
.container{
  width:100%;
  max-width:calc(var(--container) + var(--pad) * 2);
  margin:0 auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
}
.section{padding:var(--section) 0;}
.section-tight{padding:96px 0;}
.section-sand{background:var(--sand);}
.section-ink{background:var(--ink);color:rgba(246,245,241,.78);}
.section-ink h2,.section-ink h3{color:var(--paper);}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.section-head h2{font-size:clamp(28px,3.4vw,44px);line-height:1.1;}
.section-sub{font-size:17px;line-height:1.7;color:var(--text);max-width:640px;margin-top:14px;}
.section-ink .section-sub{color:rgba(246,245,241,.72);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);border-radius:2px;}
.on-dark .eyebrow,.page-hero .eyebrow{color:var(--lime);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn .arrow{transition:transform .2s ease;display:inline-block;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--lime);color:var(--ink);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--paper);color:var(--ink);}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn:active{transform:translateY(1px);}
.on-dark .btn-ghost,.page-hero .btn-ghost{border-color:rgba(246,245,241,.45);color:var(--paper);}
.on-dark .btn-ghost:hover,.page-hero .btn-ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--ink);}
.link-more .arrow{transition:transform .2s ease;}
.link-more:hover .arrow{transform:translateX(4px);}
.link-more:hover{color:var(--ink-soft);}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  background:var(--sand);
  color:var(--ink);
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-orange{background:var(--orange);color:#fff;}
.badge-ink{background:var(--ink);color:var(--lime);}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,245,241,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.logo{display:inline-flex;align-items:baseline;gap:4px;letter-spacing:-.02em;}
.logo-main{font-size:22px;font-weight:900;color:var(--ink);}
.logo-sub{
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  background:var(--lime);
  padding:2px 7px;
  border-radius:5px;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-item{
  position:relative;
  padding:9px 13px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:6px;
}
.nav-item:hover{color:var(--ink);background:rgba(16,32,27,.06);}
.nav-item.active{color:var(--ink);font-weight:800;}
.nav-item.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:1px;
  height:3px;border-radius:2px;
  background:var(--lime);
}
.nav-cta{margin-left:12px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--white);
  align-items:center;
  justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:1px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:1px;
}
.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(--paper);
  transform:translateY(-102%);
  transition:transform .3s ease;
  display:flex;
  flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:6px;background:var(--white);
  display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--ink);line-height:1;
}
.drawer-links{padding:12px 0;flex:1;}
.drawer-links a{
  display:block;
  padding:16px 0;
  font-size:30px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.02em;
  border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--ink);}
.drawer-links a.active::after{content:" ·";color:var(--lime);}
.drawer-cta{margin-top:24px;}
.drawer-cta .btn{width:100%;padding:18px 24px;font-size:17px;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:var(--paper);
  padding:56px 0 72px;
}
.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(16,32,27,.95) 0%,rgba(16,32,27,.82) 48%,rgba(16,32,27,.58) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(246,245,241,.6);
  margin-bottom:28px;
}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{opacity:.5;}
.page-hero h1{
  color:var(--paper);
  font-size:clamp(36px,5.2vw,60px);
  line-height:1.08;
  margin-top:18px;
  max-width:16em;
}
.hero-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.7;
  color:rgba(246,245,241,.8);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  margin-top:52px;
  background:rgba(246,245,241,.16);
  border-radius:12px;
  overflow:hidden;
}
.stat{background:rgba(16,32,27,.66);padding:22px;}
.stat-num{
  display:block;
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--lime);
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-label{display:block;margin-top:8px;font-size:13px;line-height:1.5;color:rgba(246,245,241,.7);}

/* ============ Bento 网格 ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:190px;
  gap:16px;
}
.bento-tile{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--white);
  transition:transform .25s ease,box-shadow .25s ease;
}
.bento-tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.tile-lg{grid-column:span 2;grid-row:span 2;}
.tile-wide{grid-column:span 2;grid-row:span 1;}
.tile-sm{grid-column:span 1;grid-row:span 1;}
.bento-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.bento-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,32,27,0) 28%,rgba(16,32,27,.9) 100%);}
.bento-body{
  position:relative;
  z-index:2;
  height:100%;
  padding:24px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  color:var(--paper);
}
.bento-body h3{color:var(--paper);font-size:20px;line-height:1.3;}
.bento-body p{margin-top:10px;font-size:14px;line-height:1.65;color:rgba(246,245,241,.82);}
.tile-tag{position:absolute;top:16px;left:16px;z-index:3;}
.tile-text{
  height:100%;
  padding:22px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:12px;
}
.tile-text h3{font-size:18px;line-height:1.32;}
.tile-text p{font-size:14px;line-height:1.6;color:var(--text);}
.tile-text.tile-sand{background:var(--sand);border-color:transparent;}
.tile-text.tile-lime{background:var(--lime);border-color:transparent;}
.tile-text.tile-lime p,.tile-text.tile-lime h3{color:var(--ink);}
.tile-arrow{font-size:18px;font-weight:800;color:var(--ink);}

/* ============ 适用场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.scene-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink);}
.scene-num{
  display:block;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--ink);
  background:var(--lime);
  width:34px;height:24px;
  border-radius:5px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
}
.scene-card h3{font-size:20px;}
.scene-card p{margin-top:10px;font-size:15px;line-height:1.7;}

/* ============ 流程步骤 ============ */
.steps{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.steps::before{
  content:"";
  position:absolute;
  top:23px;
  left:22px;
  right:22px;
  height:1px;
  background:rgba(246,245,241,.22);
}
.step{position:relative;padding-right:12px;}
.step-dot{
  position:relative;
  z-index:2;
  width:46px;height:46px;
  border-radius:50%;
  background:rgba(246,245,241,.1);
  border:1px solid rgba(246,245,241,.3);
  color:var(--paper);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  margin-bottom:22px;
}
.step.is-key .step-dot{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.step h3{font-size:19px;color:var(--paper);}
.step p{margin-top:10px;font-size:15px;line-height:1.7;color:rgba(246,245,241,.72);}

/* ============ 预订须知 ============ */
.notice-grid{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:64px;
  align-items:start;
}
.notice-lead h2{font-size:clamp(26px,3.2vw,40px);line-height:1.14;}
.notice-lead p{margin-top:18px;font-size:16px;line-height:1.8;}
.notice-lead .badge{margin-top:26px;}
.notice-list{border-top:1px solid var(--line);}
.notice-list li{
  display:grid;
  grid-template-columns:132px 1fr;
  gap:20px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.notice-list dt,.notice-list .n-title{
  font-size:15px;
  font-weight:800;
  color:var(--ink);
}
.notice-list .n-desc{font-size:15px;line-height:1.75;color:var(--text);}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:24px 4px;
  text-align:left;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--ink-soft);}
.faq-index{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  color:var(--ink);
  background:var(--sand);
  border-radius:5px;
  padding:2px 8px;
  margin-top:4px;
  flex:0 0 auto;
}
.faq-q span.faq-text{flex:1;}
.faq-sign{
  flex:0 0 auto;
  position:relative;
  width:16px;height:16px;
  margin-top:6px;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:2px;background:var(--ink);border-radius:1px;transition:transform .24s ease;
}
.faq-sign::after{transform:rotate(90deg);}
.faq-item.is-open .faq-sign::after{transform:rotate(0deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 40px 26px 60px;font-size:16px;line-height:1.8;color:var(--text);}

/* ============ CTA 通栏 ============ */
.cta-wrap{padding-bottom:var(--section);}
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  border-radius:16px;
  padding:56px;
  color:var(--paper);
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
  opacity:.2;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(16,32,27,.94),rgba(16,32,27,.72));
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:var(--paper);font-size:clamp(26px,3.2vw,40px);line-height:1.14;}
.cta-band p{margin-top:16px;font-size:16px;line-height:1.75;color:rgba(246,245,241,.76);max-width:460px;}
.cta-form{display:flex;flex-direction:column;gap:22px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:12px;letter-spacing:.12em;font-weight:700;color:rgba(246,245,241,.65);}
.field input{
  width:100%;
  border:0;
  border-bottom:1px solid rgba(246,245,241,.32);
  background:transparent;
  color:var(--paper);
  padding:10px 0;
  font-size:16px;
  border-radius:0;
  transition:border-color .2s ease;
}
.field input::placeholder{color:rgba(246,245,241,.4);}
.field input:focus{outline:none;border-bottom-color:var(--lime);}
.field input:focus-visible{outline:none;}
.cta-form .btn{align-self:flex-start;}
.form-note{font-size:13px;color:rgba(246,245,241,.6);line-height:1.6;}
.form-ok{font-size:14px;color:var(--lime);font-weight:700;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(246,245,241,.7);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.25fr;
  gap:40px;
}
.site-footer .logo-main{color:var(--paper);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(246,245,241,.62);max-width:320px;}
.footer-col h4{font-size:14px;color:var(--paper);margin-bottom:18px;letter-spacing:.02em;}
.footer-col a,.footer-col span{
  display:block;
  font-size:14px;
  line-height:1.6;
  padding:7px 0;
  color:rgba(246,245,241,.66);
}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-top:52px;
  padding-top:24px;
  border-top:1px solid rgba(246,245,241,.14);
  font-size:13px;
  color:rgba(246,245,241,.5);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--section:96px;}
  .nav-item{padding:9px 10px;font-size:14px;}
  .nav-links{gap:2px;}
  .cta-band{padding:44px;gap:40px;}
}
@media (max-width:1023px){
  :root{--section:88px;--pad:20px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav{height:68px;}
  .section-tight{padding:72px 0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:40px;}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px;}
  .tile-lg{grid-column:span 2;grid-row:span 1;}
  .tile-wide{grid-column:span 2;}
  .tile-sm{grid-column:span 1;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .steps::before{display:none;}
  .notice-grid{grid-template-columns:1fr;gap:36px;}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .faq-a p{padding:0 24px 24px 0;}
}
@media (max-width:639px){
  :root{--section:72px;}
  .page-hero{padding:40px 0 56px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
  .stat-num{font-size:24px;}
  .bento{grid-template-columns:1fr;grid-auto-rows:auto;}
  .tile-lg,.tile-wide,.tile-sm{grid-column:span 1;grid-row:span 1;}
  .bento-tile{min-height:220px;}
  .tile-sm .tile-text{min-height:150px;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .notice-list li{grid-template-columns:1fr;gap:6px;}
  .faq-q{font-size:16px;padding:20px 0;}
  .faq-a p{padding:0 0 22px 0;}
  .cta-band{padding:28px 22px;border-radius:12px;}
  .cta-wrap{padding-bottom:72px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .container{padding-left:20px;padding-right:20px;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.001s !important;animation-duration:.001s !important;}
}

/* roulang page: category3 */
:root{
  --ink:#10201B;
  --ink-2:#173029;
  --lime:#C8F751;
  --orange:#FF5A1F;
  --paper:#F6F5F1;
  --sand:#E7E3D8;
  --sand-soft:#EFECE3;
  --text:#4E554E;
  --line:#D9D5C9;
  --white:#FFFFFF;
  --radius-card:12px;
  --radius-btn:6px;
  --radius-pill:999px;
  --shadow-hover:0 14px 40px rgba(16,32,27,.08);
  --container:1280px;
  --pad:24px;
  --section-y:120px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono:"Inter Tight","SF Mono","Roboto Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink-2)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.2}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
.section{padding:var(--section-y) 0}
.section-alt{background:var(--sand-soft)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--lime);border:1px solid rgba(200,247,81,.45);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:20px;
}
.eyebrow-dark{color:var(--ink);border-color:var(--line);background:var(--sand)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:13px 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn .arrow{transition:transform .22s ease;display:inline-block}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-primary:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-ghost{background:transparent;color:var(--paper);border-color:rgba(246,245,241,.5)}
.btn-ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--paper)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(246,245,241,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.logo{display:inline-flex;align-items:baseline;gap:3px;line-height:1;text-decoration:none}
.logo-main{font-size:21px;font-weight:900;letter-spacing:-.03em;color:var(--ink)}
.logo-sub{font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--ink);opacity:.72}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-item{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:var(--ink);
  white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:var(--sand)}
.nav-item.active{background:var(--sand);font-weight:800}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:10px;background:var(--white);cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s ease
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.drawer-open .nav-toggle span{background:transparent}
body.drawer-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.drawer-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:110;background:var(--paper);
  display:flex;flex-direction:column;padding:100px 24px 40px;
  overflow-y:auto;
}
.drawer[hidden]{display:none}
.drawer a{
  display:block;font-size:28px;font-weight:800;color:var(--ink);
  padding:18px 0;border-bottom:1px solid var(--line);letter-spacing:-.02em;
}
.drawer .btn{margin-top:28px;width:100%;font-size:17px;padding:16px}

/* ---------- 页面首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--paper);
  padding:84px 0 132px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(16,32,27,.78) 0%,rgba(16,32,27,.92) 62%,rgba(16,32,27,.96) 100%);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(246,245,241,.62);margin-bottom:32px}
.crumbs a{color:rgba(246,245,241,.78)}
.crumbs a:hover{color:var(--lime)}
.crumbs .sep{opacity:.45}
.crumbs .current{color:var(--paper);font-weight:600}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--lime);border:1px solid rgba(200,247,81,.45);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:24px;
}
.page-hero h1{
  color:var(--white);
  font-size:clamp(34px,5.4vw,62px);
  font-weight:900;line-height:1.08;letter-spacing:-.025em;
  max-width:14em;margin-bottom:24px;
}
.page-hero .lead{
  font-size:17px;line-height:1.8;color:rgba(246,245,241,.82);
  max-width:640px;margin-bottom:36px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 数据条 ---------- */
.quick-stats{margin-top:-72px;position:relative;z-index:5}
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:0 18px 46px rgba(16,32,27,.07);
}
.stat{padding:26px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{
  display:block;font-family:var(--mono);font-size:clamp(26px,3vw,36px);
  font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1;margin-bottom:6px;
}
.stat span{font-size:13px;line-height:1.5;color:var(--text)}

/* ---------- 34 / 66 双栏 ---------- */
.split{display:grid;grid-template-columns:34% 1fr;gap:56px;align-items:start}
.side-sticky{position:sticky;top:104px}
.side-sticky h2{font-size:clamp(26px,2.6vw,34px);margin-bottom:18px}
.side-sticky > p{font-size:15px;line-height:1.8;margin-bottom:26px}
.check-list{margin-bottom:30px}
.check-list li{
  display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--line);
}
.check-list li:last-child{border-bottom:1px solid var(--line)}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;
  background:var(--lime);border-radius:2px;
}
.check-list strong{display:block;font-size:15px;color:var(--ink);font-weight:800;margin-bottom:2px}
.check-list span{display:block;font-size:13.5px;line-height:1.65;color:var(--text)}

.split-main{min-width:0}
.block{margin-bottom:56px}
.block:last-child{margin-bottom:0}
.block h3{font-size:22px;margin-bottom:8px}
.block > p{margin-bottom:20px;font-size:15px}
.table-hint{display:none;font-size:12px;color:var(--text);opacity:.75;margin-bottom:10px}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius-card)}
.compare-table{width:100%;min-width:620px;border-collapse:collapse;font-size:14.5px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
.compare-table thead th{
  background:var(--sand);color:var(--ink);font-weight:800;font-size:13.5px;
  text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare-table tbody td{padding:15px 18px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.6}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover td{background:rgba(231,227,216,.38)}
.compare-table tbody td:first-child{color:var(--ink);font-weight:700;white-space:nowrap}

.qa-list{display:grid;gap:14px}
.qa-item{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.qa-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfc9b8}
.qa-item h4{font-size:16.5px;line-height:1.5;margin-bottom:8px;font-weight:800}
.qa-item p{margin:0;font-size:14.5px;line-height:1.7}

/* ---------- 流程 ---------- */
.section-head{max-width:760px;margin-bottom:12px}
.section-head h2{font-size:clamp(28px,3.4vw,42px);line-height:1.14;margin-bottom:14px}
.section-head p{font-size:16px;line-height:1.8;margin:0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.step{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfc9b8}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-pill);
  background:var(--ink);color:var(--lime);
  font-family:var(--mono);font-size:14px;font-weight:800;margin-bottom:16px;
}
.step h4{font-size:17px;margin-bottom:8px}
.step p{margin:0;font-size:14px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:44px auto 0}
.faq-item{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item.open{border-color:#c9c3b2}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q .sign{
  flex:0 0 auto;position:relative;width:20px;height:20px;border-radius:50%;
  border:1px solid var(--line);transition:background .22s ease,border-color .22s ease;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--ink);
  border-radius:2px;transform:translate(-50%,-50%);transition:opacity .22s ease
}
.faq-q .sign::before{width:9px;height:1.5px}
.faq-q .sign::after{width:1.5px;height:9px}
.faq-item.open .faq-q .sign{background:var(--lime);border-color:var(--lime)}
.faq-item.open .faq-q .sign::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 24px 22px;margin:0;font-size:15px;line-height:1.8;color:var(--text)}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 var(--section-y)}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--paper);
  border-radius:16px;padding:64px 56px;
  display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.16;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{
  color:var(--white);font-size:clamp(28px,3.6vw,44px);
  line-height:1.12;font-weight:900;margin-bottom:18px;
}
.cta-band p{font-size:16px;line-height:1.8;color:rgba(246,245,241,.8);margin:0}
.cta-form{display:grid;gap:22px}
.form-line{display:block}
.form-line label{
  display:block;font-size:12px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:rgba(246,245,241,.6);margin-bottom:4px;
}
.form-line input,.form-line textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid rgba(246,245,241,.3);
  color:var(--paper);font-family:inherit;font-size:16px;line-height:1.6;
  padding:10px 0 12px;outline:none;transition:border-color .22s ease;resize:vertical;
}
.form-line input::placeholder,.form-line textarea::placeholder{color:rgba(246,245,241,.38)}
.form-line input:focus,.form-line textarea:focus{border-bottom-color:var(--lime)}
.cta-form .btn{width:100%;margin-top:4px}
.form-note{font-size:12.5px;color:rgba(246,245,241,.55);margin:0;line-height:1.6}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(246,245,241,.72);padding:76px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:56px;border-bottom:1px solid rgba(246,245,241,.14);
}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-main{color:var(--white)}
.footer-brand .logo-sub{color:var(--white);opacity:.68}
.footer-brand p{font-size:14px;line-height:1.8;margin:0;max-width:320px;color:rgba(246,245,241,.66)}
.footer-col h4{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--lime);margin-bottom:18px;text-transform:uppercase}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:1.7;color:rgba(246,245,241,.72);margin-bottom:11px}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:26px 0 30px;font-size:13px;color:rgba(246,245,241,.52);
}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-item{padding:9px 11px;font-size:14px}
  .split{gap:40px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .split{grid-template-columns:1fr;gap:44px}
  .side-sticky{position:static}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;gap:36px;padding:48px 36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:767px){
  :root{--section-y:72px;--pad:20px}
  .page-hero{padding:60px 0 112px}
  .page-hero .lead{font-size:16px}
  .quick-stats{margin-top:-64px}
  .stat{padding:20px 18px}
  .table-hint{display:block}
  .steps{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a p{padding:0 18px 20px}
  .cta-band{padding:40px 24px;border-radius:14px}
  .block h3{font-size:20px}
  .side-sticky h2{font-size:26px}
}
@media (max-width:519px){
  .stats-bar{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .js .reveal{opacity:1;transform:none}
}