/* roulang page: index */
:root{
  --bg:#F5F2EB;
  --surface:#FFFFFF;
  --surface-soft:#FAF8F3;
  --ink:#191A1C;
  --text:#2A2A2A;
  --muted:#76736B;
  --line:rgba(25,26,28,.12);
  --brand:#C98F2B;
  --brand-deep:#9A6B1C;
  --accent:#16847A;
  --hot:#C9523F;
  --radius-large:16px;
  --radius-card:10px;
  --radius-button:5px;
  --shadow-hover:0 16px 40px rgba(30,24,10,.08);
  --ease:cubic-bezier(.2,0,0,1);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-size:16px;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
button,input,textarea{font:inherit;border:0;outline:0;background:none;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
}
::selection{background:rgba(201,143,43,.22);}
.container{max-width:1280px;margin:0 auto;padding:0 32px;}
.section{padding:118px 0;}
.section-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:56px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--brand-deep);font-size:14px;letter-spacing:.08em;font-weight:700;}
.section-head .eyebrow::before{content:"";width:28px;height:1px;background:var(--brand);display:inline-block;}
.section-head h2{font-size:clamp(30px,4vw,42px);line-height:1.16;color:var(--ink);font-weight:800;margin-top:12px;letter-spacing:-.01em;}
.section-head p{color:var(--muted);max-width:520px;font-size:15px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 30px;border-radius:var(--radius-button);font-weight:700;font-size:15px;transition:all .28s var(--ease);cursor:pointer;line-height:1;}
.btn svg{transition:transform .28s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--ink);color:#fff;border:1px solid var(--ink);}
.btn-primary:hover{background:var(--brand);border-color:var(--brand);color:var(--ink);}
.btn-outline{border:1px solid rgba(25,26,28,.3);color:var(--ink);background:transparent;}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);}
.btn-inverse{background:#fff;color:var(--ink);border:1px solid #fff;}
.btn-inverse:hover{background:var(--brand);border-color:var(--brand);color:var(--ink);}
.btn-gold{background:var(--brand);color:var(--ink);border:1px solid var(--brand);}
.btn-gold:hover{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep);}

/* Header */
.site-header{
  position:fixed;top:0;left:0;width:100%;height:var(--header-h);z-index:120;
  background:linear-gradient(180deg,rgba(25,26,28,.62) 0%,rgba(25,26,28,0) 100%);
  border-bottom:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(245,242,235,.94);
  border-bottom-color:var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{max-width:1280px;margin:0 auto;padding:0 32px;height:var(--header-h);display:flex;align-items:center;gap:34px;position:relative;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:23px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;transition:color .3s var(--ease);}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em;}
.brand-sub{font-size:11px;font-weight:600;color:rgba(255,255,255,.7);letter-spacing:.16em;}
.site-header.is-scrolled .brand-text{color:var(--ink);}
.site-header.is-scrolled .brand-sub{color:var(--muted);}
.main-nav{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-link{
  position:relative;display:block;padding:10px 16px;font-weight:600;font-size:15px;color:rgba(255,255,255,.88);
  transition:color .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;bottom:3px;width:0;height:2px;background:var(--brand);
  transition:width .3s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.is-active::after{width:24px;}
.nav-link.is-active{color:var(--brand);font-weight:800;}
.site-header.is-scrolled .nav-link{color:var(--ink);}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.is-active{color:var(--brand-deep);}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:8px;}
.desktop-cta{height:42px;padding:0 20px;font-size:14px;border-radius:var(--radius-button);background:#fff;color:var(--ink);border:1px solid transparent;}
.desktop-cta:hover{background:var(--brand);color:var(--ink);border-color:var(--brand);}
.site-header.is-scrolled .desktop-cta{background:var(--ink);color:#fff;border-color:var(--ink);}
.site-header.is-scrolled .desktop-cta:hover{background:var(--brand);color:var(--ink);border-color:var(--brand);}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border-radius:8px;cursor:pointer;z-index:130;}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;transition:all .3s var(--ease);}
.site-header.is-scrolled .nav-toggle span,.body-nav-open .nav-toggle span{background:var(--ink);}
.body-nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.body-nav-open .nav-toggle span:nth-child(2){opacity:0;}
.body-nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-cta{display:none;}

/* Hero */
.hero{
  position:relative;min-height:94vh;display:flex;align-items:center;color:#fff;overflow:hidden;padding:150px 0 110px;
  background:
    linear-gradient(110deg,rgba(19,19,20,.93) 0%,rgba(19,19,20,.7) 43%,rgba(16,16,17,.3) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.hero::after{content:"";position:absolute;right:-8%;bottom:-22%;width:520px;height:520px;background:radial-gradient(circle,rgba(201,143,43,.22) 0%,rgba(201,143,43,0) 68%);pointer-events:none;}
.hero .container{position:relative;z-index:2;width:100%;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:70px;align-items:center;}
.hero-tag{display:inline-flex;align-items:center;gap:10px;color:#f0d8a8;font-size:13px;letter-spacing:.18em;font-weight:700;background:rgba(201,143,43,.14);border:1px solid rgba(201,143,43,.3);padding:7px 16px;border-radius:999px;margin-bottom:28px;}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.hero h1{
  font-size:clamp(44px,6vw,72px);
  line-height:1.12;
  font-weight:800;
  color:#fff;
  letter-spacing:-.02em;
  max-width:13em;
}
.hero-sub{margin-top:24px;color:rgba(255,255,255,.76);font-size:17px;max-width:560px;line-height:1.9;}
.hero-buttons{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:18px 32px;margin-top:48px;padding-top:26px;border-top:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.64);font-size:13px;}
.hero-facts li{display:flex;align-items:center;gap:8px;}
.hero-facts li::before{content:"";width:14px;height:14px;border:1px solid var(--brand);border-radius:50%;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M3 7.4l2.6 2.6L11 4.2' stroke='%23C98F2B' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-size:10px;background-repeat:no-repeat;background-position:center;}
.hero-visual{position:relative;padding:26px 0 56px 30px;}
.hero-visual-main{border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.2);box-shadow:0 24px 64px rgba(0,0,0,.24);background:var(--surface);aspect-ratio:4/3;}
.hero-visual-main img{width:100%;height:100%;object-fit:cover;}
.hero-visual-sub{
  position:absolute;left:0;bottom:0;width:52%;border-radius:14px;overflow:hidden;border:3px solid rgba(255,255,255,.9);
  box-shadow:0 14px 32px rgba(0,0,0,.25);background:#fff;aspect-ratio:1/1;
}
.hero-visual-sub img{width:100%;height:100%;object-fit:cover;}
.hero-visual-flag{
  position:absolute;right:10px;top:22px;background:var(--ink);color:#fff;font-size:12px;padding:6px 10px;border-radius:6px;
  display:flex;align-items:center;gap:6px;box-shadow:0 6px 18px rgba(0,0,0,.2);letter-spacing:.04em;
}
.hero-visual-flag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);}

/* Steps */
#howto{scroll-margin-top:var(--header-h);}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start;}
.step-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 28px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
  position:relative;
}
.step-item:nth-child(2){transform:translateY(28px);}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(201,143,43,.4);}
.step-item:nth-child(2):hover{transform:translateY(24px);}
.step-num{font-size:42px;line-height:1;font-weight:800;letter-spacing:-.04em;color:var(--brand);opacity:.8;}
.step-img{height:160px;border-radius:var(--radius-card);overflow:hidden;background:var(--surface-soft);margin:22px 0 24px;border:1px solid var(--line);}
.step-img img{width:100%;height:100%;object-fit:cover;}
.step-item h3{font-size:21px;color:var(--ink);font-weight:800;margin-bottom:10px;}
.step-item p{color:var(--muted);font-size:15px;line-height:1.85;}

/* Rewards */
#rewards{scroll-margin-top:var(--header-h);}
.rewards-split{display:grid;grid-template-columns:1.04fr .96fr;gap:28px;align-items:stretch;}
.reward-main{
  background:linear-gradient(135deg,#222326 0%,var(--ink) 52%,#2b2216 100%);
  color:#fff;border-radius:var(--radius-lg);padding:38px;position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;min-height:440px;
  border:1px solid rgba(201,143,43,.35);
}
.reward-main::before{content:"";position:absolute;right:-60px;top:-60px;width:250px;height:250px;background:radial-gradient(circle,rgba(201,143,43,.3)0%,rgba(201,143,43,0)70%);}
.badge-hot{display:inline-flex;align-items:center;align-self:flex-start;background:rgba(201,82,63,.16);color:#F2A091;border:1px solid rgba(201,82,63,.34);padding:4px 12px;border-radius:5px;font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:22px;}
.reward-icon{width:62px;height:62px;border-radius:16px;background:rgba(201,143,43,.18);border:1px solid rgba(201,143,43,.42);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:22px;}
.reward-main h3{font-size:26px;font-weight:800;margin-bottom:12px;}
.reward-main p{color:rgba(255,255,255,.68);font-size:15px;max-width:480px;margin-bottom:26px;}
.reward-main .btn{height:44px;padding:0 22px;background:#fff;color:var(--ink);}
.reward-main .btn:hover{background:var(--brand);color:var(--ink);}
.rewards-stack{display:flex;flex-direction:column;gap:20px;}
.reward-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;flex:1;
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.reward-card:hover{border-color:rgba(201,143,43,.5);transform:translateY(-3px);}
.reward-icon-sm{width:56px;height:56px;border-radius:14px;background:var(--surface-soft);border:1px solid var(--line);color:var(--brand);display:flex;align-items:center;justify-content:center;}
.reward-card h3{color:var(--ink);font-weight:800;font-size:18px;margin-bottom:8px;}
.reward-card p{color:var(--muted);font-size:14px;line-height:1.8;}
.reward-card .card-link{margin-top:12px;display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:700;font-size:14px;transition:gap .25s var(--ease);}
.reward-card .card-link:hover{gap:11px;color:var(--brand-deep);}

/* Task */
#tasks{scroll-margin-top:var(--header-h);}
.task-panel{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:44px;align-items:stretch;}
.task-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:12px 32px;display:flex;flex-direction:column;}
.task-item{padding:26px 0;border-bottom:1px solid var(--line);}
.task-item:last-child{border-bottom:0;}
.task-item .task-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:14px;}
.task-item .task-title{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--ink);}
.task-item .task-reward{color:var(--muted);font-size:13px;background:var(--surface-soft);border:1px solid var(--line);padding:4px 10px;border-radius:5px;white-space:nowrap;}
.progress-line{height:6px;border-radius:99px;background:rgba(25,26,28,.08);overflow:hidden;position:relative;}
.progress-bar{height:100%;background:var(--line);border-radius:99px;transition:width .7s var(--ease);}
.progress-bar.done{background:var(--accent);}
.progress-bar.part{background:var(--brand);}
.task-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--muted);}
.task-state{display:inline-flex;align-items:center;gap:5px;font-weight:700;font-size:12px;}
.task-state.done{color:var(--accent);}
.task-state.go{color:var(--brand-deep);}
.task-state.wait{color:var(--muted);}
.task-side{
  background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:34px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;
}
.task-side::after{content:"";position:absolute;right:-70px;bottom:-70px;width:220px;height:220px;border-radius:50%;border:30px solid rgba(201,143,43,.18);}
.task-side h3{font-size:28px;line-height:1.25;font-weight:800;margin-bottom:14px;}
.task-side p{color:rgba(255,255,255,.66);font-size:15px;line-height:1.85;}
.task-side .side-status{font-size:12px;color:rgba(255,255,255,.5);border-top:1px solid rgba(255,255,255,.12);padding-top:16px;margin-top:22px;}
.task-side .btn{margin-top:28px;}
.task-icon{width:46px;height:46px;border-radius:12px;background:rgba(201,143,43,.17);border:1px solid rgba(201,143,43,.4);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:26px;}

/* News */
#news{scroll-margin-top:var(--header-h);}
.news-layout{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:30px;align-items:start;}
.news-lead-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.news-lead-card:hover{border-color:rgba(201,143,43,.46);box-shadow:var(--shadow-hover);}
.news-lead-media{height:280px;overflow:hidden;background:#eae5db;}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.news-lead-card:hover .news-lead-media img{transform:scale(1.045);}
.news-lead-body{padding:26px 28px;}
.meta-row{display:flex;align-items:center;gap:16px;color:var(--muted);font-size:13px;margin-bottom:12px;}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:4px;font-size:12px;font-weight:800;}
.tag-brand{background:rgba(201,143,43,.14);color:var(--brand-deep);border:1px solid rgba(201,143,43,.2);}
.news-lead-body h3{font-size:24px;line-height:1.4;color:var(--ink);font-weight:800;margin-bottom:12px;}
.news-lead-body p{color:var(--muted);font-size:15px;margin-bottom:20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.read-more{display:inline-flex;align-items:center;gap:7px;color:var(--brand-deep);font-weight:800;font-size:14px;transition:gap .25s var(--ease);}
.news-lead-card:hover .read-more{gap:12px;}
.news-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;}
.news-list-item{display:flex;flex-direction:column;gap:4px;padding:21px 24px;border-bottom:1px solid var(--line);transition:background .25s var(--ease),padding-left .25s var(--ease);}
.news-list-item:last-child{border-bottom:0;}
.news-list-item:hover{background:var(--surface-soft);padding-left:29px;}
.news-list-item .list-top{display:flex;align-items:center;gap:10px;}
.news-list-item .list-time{color:var(--muted);font-size:12px;margin-left:auto;}
.news-list-item h4{font-size:16px;line-height:1.5;color:var(--ink);font-weight:700;margin-bottom:5px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-list-item p{color:var(--muted);font-size:13px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-empty{
  background:var(--surface);border:1px dashed rgba(25,26,28,.2);border-radius:var(--radius-lg);padding:70px 30px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;text-align:center;color:var(--muted);min-height:320px;
}
.news-empty svg{color:#D8D2C4;}

/* CTA */
.cta-section{position:relative;padding:120px 0;background:linear-gradient(110deg,rgba(25,26,28,.94) 0%,rgba(25,26,28,.78) 50%,rgba(25,26,28,.88)100%),url("/assets/images/backpic/back-3.png") center/cover no-repeat;color:#fff;}
.cta-inner{max-width:860px;margin:0 auto;text-align:center;position:relative;}
.cta-inner .eyebrow{color:#F0D8A8;display:inline-block;margin-bottom:20px;font-size:13px;letter-spacing:.16em;font-weight:700;}
.cta-inner h2{font-size:clamp(32px,4.6vw,56px);line-height:1.2;font-weight:800;color:#fff;margin-bottom:18px;}
.cta-inner p{color:rgba(255,255,255,.68);max-width:640px;margin:0 auto 38px;font-size:16px;}
.cta-form{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;max-width:590px;margin:0 auto;}
.cta-form input{
  flex:1;min-width:260px;height:52px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);border-radius:6px;
  padding:0 18px;color:#fff;font-size:15px;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.5);}
.cta-form input:focus{border-color:var(--brand);background:rgba(255,255,255,.16);}
.cta-form .btn{height:52px;padding:0 30px;background:var(--brand);color:var(--ink);border-color:var(--brand);}
.cta-form .btn:hover{background:#fff;color:var(--ink);border-color:#fff;}
.cta-note{margin-top:16px;font-size:12px;color:rgba(255,255,255,.4);}

/* FAQ */
#faq{scroll-margin-top:var(--header-h);}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;align-items:start;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item.active{border-bottom-color:rgba(201,143,43,.24);}
.faq-q{width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;text-align:left;padding:23px 0;cursor:pointer;color:var(--ink);font-weight:700;font-size:15px;line-height:1.6;transition:color .25s var(--ease);}
.faq-q:hover{color:var(--brand-deep);}
.faq-icon{width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);font-weight:500;font-size:20px;line-height:1;transition:all .3s var(--ease);flex-shrink:0;background:var(--surface);}
.faq-q:hover .faq-icon,.faq-item.active .faq-icon{border-color:var(--brand);color:var(--brand);transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s var(--ease);}
.faq-item.active .faq-a{max-height:240px;}
.faq-a p{padding:0 0 24px;color:var(--muted);font-size:14px;line-height:1.9;max-width:560px;}

/* Footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 34px;}
.footer-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:48px;}
.footer-brand .footer-name{font-size:22px;font-weight:800;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:12px;}
.footer-brand .footer-name .logo-dot{width:10px;height:10px;border-radius:50%;background:var(--brand);}
.footer-brand p{font-size:14px;line-height:1.9;max-width:360px;}
.footer-copyright{margin-top:26px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.46);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.footer-link-block h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-link-block a{display:block;padding:7px 0;color:rgba(255,255,255,.6);font-size:14px;transition:color .25s var(--ease),transform .25s var(--ease);}
.footer-link-block a:hover{color:var(--brand);transform:translateX(5px);}

/* responsive */
@media (max-width:1199px){
  .hero-grid{gap:40px;}
  .hero-visual-sub{width:45%;}
  .rewards-split,.task-panel{grid-template-columns:1fr;}
  .task-side{margin-top:0;}
  .task-side .side-status{margin-top:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:992px){
  .section{padding:86px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .hero{padding:140px 0 90px;}
  .hero-grid{grid-template-columns:1fr;gap:0;}
  .hero-visual{max-width:560px;margin:70px auto 0;padding:0 0 46px 26px;}
  .steps-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .step-item:nth-child(2){transform:none;}
  .step-item:nth-child(2):hover{transform:translateY(-2px);}
  .step-item:nth-child(3){grid-column:1/-1;}
  .news-layout{grid-template-columns:1fr;gap:26px;}
  .news-lead-media{height:300px;}
  .faq-grid{grid-template-columns:1fr;gap:0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .header-inner{padding:0 20px;}
  .main-nav{
    position:fixed;top:0;right:0;width:min(86vw,420px);height:100vh;background:var(--surface);
    border-left:1px solid var(--line);box-shadow:0 24px 64px rgba(0,0,0,.24);
    padding:112px 36px 40px;display:flex;flex-direction:column;align-items:stretch;gap:0;
    transform:translateX(105%);transition:transform .35s var(--ease);z-index:130;
  }
  body.body-nav-open .main-nav{transform:translateX(0);}
  .nav-link{color:var(--ink);font-size:20px;font-weight:700;padding:16px 0;border-bottom:1px solid var(--line);}
  .nav-link:hover,.nav-link.is-active{color:var(--brand-deep);}
  .nav-link::after{display:none;}
  .nav-toggle{display:flex;}
  .desktop-cta{display:none;}
  .mobile-cta{display:inline-flex;margin-top:28px;height:52px;background:var(--ink);color:#fff;}
  .mobile-cta:hover{background:var(--brand);color:var(--ink);}
  .section{padding:68px 0;}
  .section-head{margin-bottom:38px;}
  .section-head h2{font-size:32px;}
  .hero{min-height:80vh;padding:118px 0 86px;}
  .hero h1{font-size:42px;}
  .hero-sub{font-size:16px;}
  .hero-facts{flex-direction:column;gap:12px;align-items:flex-start;}
  .hero-visual{margin-top:60px;width:100%;padding-bottom:36px;}
  .hero-visual-sub{border-width:2px;}
  .steps-grid{grid-template-columns:1fr;}
  .step-item:nth-child(3){grid-column:auto;}
  .reward-main{padding:30px;}
  .rewards-split{gap:20px;}
  .reward-card{grid-template-columns:44px 1fr;gap:16px;padding:22px;}
  .reward-icon-sm{width:44px;height:44px;}
  .task-list{padding:4px 22px;}
  .task-item .task-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .task-side{padding:30px;}
  .cta-section{padding:78px 0;}
  .cta-form input{min-width:100%;}
  .cta-form .btn{width:100%;}
  .news-lead-media{height:220px;}
  .news-lead-body{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .section{padding:58px 0;}
  .hero{padding:112px 0 64px;}
  .hero h1{font-size:36px;line-height:1.18;}
  .hero-sub{font-size:15px;}
  .hero-buttons .btn{width:100%;}
  .step-item{padding:26px 20px;}
  .step-img{height:150px;}
  .reward-main{min-height:390px;padding:24px;}
  .news-list-item{padding:18px 20px;}
  .news-list-item:hover{padding-left:20px;}
  .footer-copyright{flex-direction:column;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root {
  --bg: #F5F2EB;
  --surface: #FFFFFF;
  --ink: #191A1C;
  --text: #2A2A2A;
  --muted: #76736B;
  --line: rgba(25, 26, 28, 0.12);
  --brand: #C98F2B;
  --brand-deep: #9A6B1C;
  --accent: #16847A;
  --hot: #C9523F;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 5px;
  --max-width: 1280px;
  --transition: cubic-bezier(0.2, 0, 0, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button, input, textarea {
  font-family: inherit;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  line-height: 48px;
  padding: 0 24px;
  border-radius: 5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .3s var(--transition);
}
.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover {
  background: var(--brand);
  color: #191A1C;
}
.btn-primary:hover .arrow-icon {
  transform: translateX(4px);
}
.site-header {
  background: rgba(245, 242, 235, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background .3s ease, box-shadow .3s ease;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand-text {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}
.brand-name {
  font-size: 19px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 1px;
}
.brand-sub {
  font-size: 13px;
  color: var(--brand);
  font-weight: 600;
  letter-spacing: 3px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  margin-right: 24px;
}
.nav-link {
  padding: 8px 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  transition: color .2s var(--transition);
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 12px;
  bottom: 0;
  width: calc(100% - 24px);
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--transition);
}
.nav-link:hover {
  color: var(--brand-deep);
}
.nav-link:hover::after {
  transform: scaleX(1);
}
.nav-link.is-active {
  color: var(--brand-deep);
  font-weight: 700;
}
.nav-link.is-active::after {
  transform: scaleX(1);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  border: none;
  background: transparent;
  width: 44px;
  height: 44px;
  padding: 12px;
  gap: 6px;
  cursor: pointer;
}
.nav-toggle span {
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .2s;
}
.desktop-cta {
  flex-shrink: 0;
}
.mobile-cta {
  display: none;
}
.site-header .container {
  display: flex;
  align-items: center;
}
.page-hero {
  padding-top: 152px;
  padding-bottom: 56px;
  background: linear-gradient(to bottom, rgba(28, 30, 32, 0.98), rgba(28, 30, 32, 0.88)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero .hero-content {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 960px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(201, 143, 43, 0.15);
  color: var(--brand);
  padding: 5px 14px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}
.page-hero h1 {
  color: #fff;
  font-size: 52px;
  line-height: 1.15;
  font-weight: 800;
  margin-top: 18px;
  margin-bottom: 16px;
  letter-spacing: 0;
}
.page-hero p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
  line-height: 1.9;
  max-width: 480px;
}
.page-hero-cards {
  display: flex;
  gap: 12px;
  margin-top: 40px;
}
.text-light {
  color: rgba(255, 255, 255, 0.9) !important;
}
.game-brief-bar {
  padding: 24px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.game-brief-bar .container {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.game-brief-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 14px;
}
.game-brief-item strong {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  font-family: "DIN Alternate", "PingFang SC", sans-serif;
  font-variant-numeric: tabular-nums;
}
.filter-tabs {
  padding: 32px 0 4px;
}
.filter-tabs .container {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-chip {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s ease;
}
.filter-chip:hover {
  border-color: var(--brand);
  color: var(--brand-deep);
}
.filter-chip.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.game-list-section {
  padding: 32px 0 90px;
}
.game-divider {
  width: 100%;
  height: 1px;
  background: var(--line);
  margin: 0;
  border: none;
}
.game-row {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 32px 20px;
  transition: background .3s var(--transition);
  border-radius: 12px;
}
.game-row:hover {
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 28px rgba(30, 24, 10, 0.05);
}
.game-thumb {
  width: 190px;
  height: 140px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: #eee;
}
.game-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s var(--transition);
}
.game-row:hover .game-thumb img {
  transform: scale(1.06);
}
.game-row-main {
  flex: 1;
  min-width: 0;
  margin-right: auto;
}
.game-row-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.game-row-title h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}
.tag-badge {
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 4px;
  background: rgba(201, 143, 43, 0.1);
  color: var(--brand-deep);
  font-weight: 600;
  white-space: nowrap;
}
.tag-badge.hot {
  background: rgba(201, 82, 63, 0.1);
  color: var(--hot);
}
.game-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  margin-top: 4px;
  max-width: 650px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.game-row-tags {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.tag {
  font-size: 13px;
  background: var(--bg);
  padding: 4px 12px;
  border-radius: 4px;
  color: var(--text);
  border: 1px solid transparent;
}
.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 34px;
  padding-left: 16px;
  border-left: 4px solid var(--brand);
}
.game-sub-section {
  padding: 60px 0 120px;
}
.featured-card-cta {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-width: 170px;
  text-align: center;
}
.featured-card-cta .btn {
  white-space: nowrap;
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
}
.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: transparent;
}
.game-sort-header {
  background: var(--bg);
  padding: 30px 0 0;
}
.section-block .container {
  padding-top: 0;
  padding-bottom: 0;
}
.section-block {
  padding-top: 90px;
  padding-bottom: 90px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  margin-bottom: 28px;
  align-items: flex-end;
}
.section-heading h2 {
  border-left: 4px solid var(--brand);
  padding-left: 16px;
  font-size: 32px;
  line-height: 1.3;
  margin-bottom: 0;
  color: var(--ink);
}
.section-header-right {
  color: var(--muted);
  font-size: 15px;
}
.faq-section {
  background: var(--surface);
  padding-top: 90px;
  padding-bottom: 100px;
  border-top: 1px solid var(--line);
}
.faq-section .title-row {
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 36px;
  padding-left: 16px;
  border-left: 4px solid var(--brand);
  text-align: left;
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.faq-grid-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.faq-grid-item summary {
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  transition: color .2s ease;
  user-select: none;
}
.faq-grid-item summary::-webkit-details-marker {
  display: none;
}
.faq-grid-item summary:hover {
  color: var(--brand-deep);
}
.faq-icon {
  font-size: 20px;
  color: var(--brand);
  flex-shrink: 0;
  margin-left: 12px;
  transition: transform .2s;
}
.faq-grid-item[open] .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  padding: 4px 0 16px;
}
/* Footer */
.site-footer {
  background: var(--ink);
  padding: 70px 0 40px;
  color: rgba(255, 255, 255, 0.7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: 60px;
}
.footer-name {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand);
  display: inline-block;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  margin: 18px 0;
  max-width: 400px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-copyright {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  margin-top: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-link-block h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 12px;
}
.footer-link-block h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--brand);
}
.footer-link-block a {
  display: block;
  width: fit-content;
  margin: 10px 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
  transition: all .2s;
}
.footer-link-block a:hover {
  color: var(--brand);
  margin-left: 6px;
}

/* mobile nav */
@media (max-width: 992px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  .main-nav {
    gap: 4px;
    margin-right: 8px;
  }
  .desktop-cta {
    display: none;
  }
  .game-row {
    padding: 24px 8px;
    gap: 14px;
  }
}
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .desktop-cta {
    display: none;
  }
  .main-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    background: rgba(248, 246, 241, 0.98);
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(340px, 80vw);
    padding: 72px 30px 20px;
    z-index: 998;
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.1);
    margin-right: 0;
    transform: translateX(105%);
    transition: transform .45s var(--transition);
    overflow-y: auto;
  }
  .main-nav.is-open {
    display: flex;
    transform: translateX(0);
  }
  .nav-link {
    font-size: 18px;
    padding: 14px;

  }
  .nav-link::after {
    display: none;
    opacity: 0;
  }
}

/* roulang page: article */
:root {
  --bg: #F5F2EB;
  --surface: #FFFFFF;
  --surface-soft: #FAF6EC;
  --ink: #191A1C;
  --text: #2A2A2A;
  --muted: #76736B;
  --line: rgba(25, 26, 28, 0.12);
  --brand: #C98F2B;
  --brand-deep: #9A6B1C;
  --accent: #16847A;
  --hot: #C9523F;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-hover: 0 16px 40px rgba(30, 24, 10, 0.08);
  --shadow-overlay: 0 24px 64px rgba(0,0,0,0.18);
  --header-h: 72px;
  --container: 1280px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.25;
  margin: 0;
}
ul, ol { margin: 0; padding: 0; }
p { margin: 0; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  height: var(--header-h);
  background: rgba(245, 242, 235, 0.92);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(245, 242, 235, 0.96);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  height: var(--header-h);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--ink);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  border-radius: 10px 4px 10px 4px;
}
.brand-text {
  display: flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}
.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.brand-sub {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.18em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  bottom: 6px;
  width: 24px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1);
}
.nav-link:hover::after { transform: scaleX(0.45); }
.nav-link.is-active {
  color: var(--brand-deep);
  font-weight: 800;
}
.nav-link.is-active::after { transform: scaleX(1); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 20px;
  height: 42px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background 0.24s ease, color 0.24s ease, border-color 0.24s ease, transform 0.2s ease, box-shadow 0.24s ease;
}
.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover {
  background: var(--brand);
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(25,26,28,0.3);
}
.btn-ghost:hover {
  border-color: var(--brand-deep);
  color: var(--brand-deep);
  transform: translateY(-2px);
}
.desktop-cta { flex-shrink: 0; }
.mobile-cta { display: none; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-main { min-height: 60vh; }

.article-top {
  padding: 44px 0 22px;
}
.article-top.slim { padding: 28px 0 12px; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
}
.breadcrumb a {
  color: var(--muted);
  transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--brand-deep); }
.breadcrumb .sep { color: rgba(25,26,28,0.35); }
.breadcrumb .crumb-current {
  color: var(--text);
  font-weight: 600;
  max-width: 420px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: start;
  padding-bottom: 80px;
}
.post-main { min-width: 0; }
.post-side { position: sticky; top: 96px; display: grid; gap: 20px; }

.doc-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}
.article-doc {
  padding: 48px clamp(26px, 5vw, 64px) 46px;
}
.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid rgba(201,143,43,0.36);
  background: rgba(201,143,43,0.06);
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 20px;
}
.article-title {
  font-size: clamp(30px, 4.2vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 16px 0;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  color: var(--muted);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-cat {
  color: var(--brand-deep);
  font-weight: 700;
}

.article-media {
  border-radius: 14px;
  overflow: hidden;
  margin: 28px 0 6px;
}
.article-media img { width: 100%; height: auto; }
.article-media figcaption {
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  padding: 12px 8px 4px;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding-top: 14px;
}
.article-body > * + * { margin-top: 1.1em; }
.article-body p {
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--text);
}
.article-body h2 {
  font-size: 28px;
  font-weight: 800;
  margin-top: 1.8em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.article-body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-top: 1.6em;
}
.article-body ul, .article-body ol {
  padding-left: 1.5em;
  font-size: 16px;
}
.article-body ul li, .article-body ol li { margin-bottom: 8px; }
.article-body blockquote {
  margin: 1.6em 0;
  padding: 18px 22px;
  background: var(--surface-soft);
  border-left: 4px solid var(--brand);
  border-radius: 0 10px 10px 0;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.9;
}
.article-body img {
  max-width: 100%;
  border-radius: 12px;
  margin: 30px auto;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 15px;
  line-height: 1.7;
}
.article-body th, .article-body td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
}
.article-body th {
  background: var(--surface-soft);
  color: var(--ink);
  font-weight: 700;
}
.article-body a {
  color: var(--brand-deep);
  border-bottom: 1px solid rgba(154,107,28,0.4);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.article-body a:hover { color: var(--ink); border-color: var(--ink); }
.article-body code {
  background: #EEEBE3;
  color: var(--ink);
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}

.post-end-meta {
  border-top: 1px solid var(--line);
  margin-top: 36px;
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--muted);
}
.article-back {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 26px clamp(26px, 5vw, 64px);
  background: var(--surface-soft);
  border-top: 1px solid var(--line);
}
.back-route {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.back-route small {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.back-route strong {
  font-size: 16px;
  color: var(--ink);
}

.missing-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(32px, 5vw, 64px);
}
.missing-code {
  display: inline-block;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--hot);
  background: rgba(201,82,63,0.08);
  border: 1px solid rgba(201,82,63,0.2);
  padding: 5px 12px;
  border-radius: 6px;
  margin-bottom: 18px;
}
.missing-panel h1 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  margin-bottom: 12px;
}
.missing-panel p {
  color: var(--muted);
  max-width: 540px;
  line-height: 1.85;
  margin-bottom: 28px;
}
.missing-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.side-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}
.side-card-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}
.side-card-title::after {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--brand);
  margin-left: auto;
}
.side-card-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.side-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.side-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s ease, transform 0.2s ease;
}
.side-link:last-child { border-bottom: 0; }
.side-link:hover { color: var(--brand-deep); transform: translateX(5px); }
.side-link em {
  font-style: normal;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.side-quick {
  display: grid;
  gap: 8px;
}
.side-quick a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 2px;
  border-bottom: 1px dashed var(--line);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
.side-quick a:hover { color: var(--brand-deep); }
.side-quick span {
  color: var(--brand);
  font-weight: 700;
}
.side-note {
  background: var(--surface-soft);
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  border: 1px solid var(--line);
}
.side-note strong {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
}
.side-enter {
  display: block;
  text-align: center;
  margin-top: 6px;
}

.related-band {
  padding: 0 0 84px;
}
.related-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 26px;
}
.related-head .eyebrow {
  display: block;
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.related-head h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
}
.related-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 20px;
}
.related-feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.related-feature:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.related-feature img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.related-feature .rel-body {
  padding: 18px 22px 20px;
}
.related-feature h3 { font-size: 19px; margin-bottom: 10px; }
.related-feature p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.related-feature .rel-meta {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--muted);
}
.related-mini-list {
  display: grid;
  gap: 12px;
}
.related-mini {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.related-mini:hover {
  border-color: rgba(201,143,43,0.5);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.related-mini .mini-tag {
  font-size: 12px;
  color: var(--brand-deep);
  font-weight: 700;
  margin-bottom: 8px;
}
.related-mini h3 { font-size: 16px; line-height: 1.45; margin-bottom: 8px; }
.related-mini p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 12px;
}
.related-mini .mini-date {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.related-mini .mini-date b { color: var(--ink); font-weight: 600; }

.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.72);
  padding: 64px 0 32px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.9fr 0.9fr;
  gap: 48px;
}
.footer-brand .footer-name {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 14px;
}
.logo-dot {
  width: 10px;
  height: 10px;
  background: var(--brand);
  border-radius: 50%;
  flex-shrink: 0;
}
.footer-brand p {
  color: rgba(255,255,255,0.58);
  font-size: 14px;
  line-height: 1.9;
  max-width: 520px;
}
.footer-copyright {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-link-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.footer-link-block h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.footer-link-block a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer-link-block a:hover {
  color: var(--brand);
  transform: translateX(3px);
}

@media (max-width: 1100px) {
  .article-layout { grid-template-columns: minmax(0, 1fr) 300px; }
  .article-doc { padding: 40px 32px 38px; }
  .article-back { padding: 22px 32px; }
}
@media (max-width: 960px) {
  .desktop-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    width: min(78vw, 360px);
    height: calc(100vh - var(--header-h));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-left: 1px solid var(--line);
    box-shadow: var(--shadow-overlay);
    padding: 24px 20px 28px;
    transform: translateX(105%);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.2, 0, 0, 1), opacity 0.3s ease;
  }
  body.nav-open .main-nav { transform: translateX(0); opacity: 1; }
  .main-nav .nav-link {
    padding: 14px 10px;
    font-size: 19px;
    border-left: 3px solid transparent;
    border-radius: 0 8px 8px 0;
  }
  .main-nav .nav-link::after { display: none; }
  .main-nav .nav-link.is-active {
    border-left-color: var(--brand);
    background: rgba(201,143,43,0.08);
  }
  .mobile-cta { display: inline-flex !important; margin-top: auto; }
  .article-layout { grid-template-columns: 1fr; gap: 24px; }
  .post-side {
    position: static;
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 760px) {
  .container { width: min(100% - 32px, var(--container)); }
  .article-top { padding-top: 28px; }
  .article-meta { gap: 10px 14px; font-size: 13px; }
  .related-layout { grid-template-columns: 1fr; }
  .post-side { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brand-name { font-size: 18px; }
  .article-doc { padding: 28px 20px 24px; }
  .article-back { padding: 18px 20px; flex-direction: column; align-items: flex-start; }
  .doc-card { border-radius: 14px; }
  .article-body p { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px 28px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category2 */
:root{
  --bg:#F5F2EB;
  --surface:#FFFFFF;
  --ink:#191A1C;
  --text:#2A2A2A;
  --muted:#76736B;
  --line:rgba(25,26,28,.12);
  --brand:#C98F2B;
  --brand-deep:#9A6B1C;
  --accent:#16847A;
  --hot:#C9523F;
  --container:1280px;
  --container-narrow:1200px;
  --radius-xl:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-hover:0 16px 40px rgba(30,24,10,.08);
  --ease:cubic-bezier(.2,0,0,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  min-height:100vh;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit;border:none;background:none}
ul,ol{list-style:none}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:0}
h1{font-size:clamp(40px,5vw,60px);font-weight:800}
h2{font-size:clamp(28px,3.6vw,40px)}
h3{font-size:20px;line-height:1.45}
svg{display:inline-block;vertical-align:middle}
.tabular{font-variant-numeric:tabular-nums}
.container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
.section{padding-block:clamp(56px,7vw,120px)}
.section-head{margin-bottom:48px;max-width:840px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand-deep);font-size:14px;font-weight:600;
  letter-spacing:.08em;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:inline-block}
.section-head.center .eyebrow::after{content:"";width:22px;height:2px;background:var(--brand);display:inline-block}
.lead{color:var(--muted);font-size:17px;line-height:1.85;margin-top:16px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:16px;line-height:1;padding:16px 28px;
  border-radius:6px;cursor:pointer;transition:all .3s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn svg{transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{
  background:var(--ink);color:#fff;
}
.btn-primary:hover{background:var(--brand);color:#111;border-color:var(--brand)}
.btn-ghost{
  background:transparent;border-color:rgba(25,26,28,.24);color:var(--ink);
}
.btn-ghost:hover{border-color:var(--brand-deep);color:var(--brand-deep)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--brand);color:#111}
.btn-gold{background:var(--brand);color:#191A1C}
.btn-gold:hover{background:#1d1e20;color:#fff}

header.site-header{
  position:sticky;top:0;z-index:90;height:72px;
  background:rgba(245,242,235,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:10px;background:var(--ink);color:var(--brand);
  display:grid;place-items:center;font-size:22px;font-weight:800;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:1px}
.brand-sub{font-size:11px;color:var(--brand-deep);letter-spacing:.42em}
.main-nav{display:flex;align-items:center;gap:34px}
.main-nav .nav-link{
  position:relative;font-size:16px;font-weight:500;color:var(--text);
  padding:10px 2px;transition:color .25s;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.main-nav .nav-link:hover{color:var(--ink)}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.is-active{color:var(--ink);font-weight:700}
.main-nav .nav-link.is-active::after{transform:scaleX(1)}
.nav-toggle{display:none;width:42px;height:42px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{width:20px;height:2px;background:var(--ink);display:block;transition:.3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-cta{display:none}
.desktop-cta{padding:13px 24px;flex-shrink:0}
.is-scrolled.site-header{background:rgba(245,242,235,.96)}

/* Hero */
.page-hero{
  position:relative;
  background-color:#eae4d8;
  background-image:linear-gradient(100deg,rgba(21,17,12,.82),rgba(20,17,13,.55)),url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  color:#fff;
  padding:84px 0 116px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;right:-80px;bottom:-80px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(201,143,43,.45);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:64px;align-items:center}
.hero-copy{max-width:680px;position:relative;z-index:2}
.hero-kicker{
  display:flex;align-items:center;gap:10px;
  color:#ddb96c;font-size:15px;letter-spacing:.08em;
  margin-bottom:18px;
}
.hero-kicker::before{content:"";width:30px;height:1px;background:#ddb96c}
.page-hero h1{color:#fff;margin-bottom:22px}
.h1-glow{color:#e5c074}
.hero-lead{color:rgba(255,255,255,.78);font-size:19px;line-height:1.8;max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.hero-note{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-note span{color:rgba(255,255,255,.76);font-size:13px;display:inline-flex;align-items:center;gap:6px}
.hero-note svg{color:#d9af5f}
.hero-art{
  position:relative;display:flex;justify-content:center;align-items:center;min-height:350px;
}
.hero-stack{width:300px;padding:14px;border-radius:24px;transform:rotate(2deg);box-shadow:0 24px 64px rgba(0,0,0,.25);}
.hero-stack-img{border-radius:16px;overflow:hidden}
.hero-stack-img img{width:100%;height:320px;object-fit:cover}
.float-card{
  position:absolute;background:rgba(255,255,255,.94);color:var(--text);
  border-radius:14px;padding:12px 16px;box-shadow:0 10px 24px rgba(0,0,0,.16);
  display:flex;align-items:center;gap:12px;backdrop-filter:blur(6px);
}
.float-card .fc-title{font-size:12px;color:var(--muted);line-height:1.4}
.float-card .fc-value{font-size:16px;font-weight:700;color:var(--ink)}
.float-card.fc-1{top:8%;left:-4%}
.float-card.fc-2{right:-3%;bottom:20%;flex-direction:column;align-items:flex-start}
.float-card .fc-icon{width:36px;height:36px;border-radius:10px;background:rgba(25,26,28,.08);display:grid;place-items:center;color:var(--brand-deep)}

/* Strip */
.strip-bar{
  background:var(--ink);color:rgba(255,255,255,.86);
  padding:16px 0;margin-top:-0px;
}
.strip-inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.strip-item{display:flex;align-items:center;gap:10px;font-size:14px}
.strip-item svg{color:var(--brand)}
.strip-item strong{color:#fff;font-weight:600}

/* Activity list */
.activity-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:80px;
  align-items:start;
}
.timeline-shell{position:relative}
.timeline-shell::before{
  content:"";position:absolute;left:44px;top:70px;bottom:40px;
  width:1px;background:repeating-linear-gradient(to bottom,var(--line) 0 6px,transparent 6px 12px);
}
.activity-item{
  position:relative;z-index:1;
  display:grid;grid-template-columns:100px 1fr;gap:20px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:28px 26px 26px;
  margin-bottom:24px;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.activity-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(201,143,43,.4)}
.activity-date{
  text-align:center;border-radius:12px;background:var(--ink);
  color:#fff;padding:18px 8px;align-self:start;
}
.activity-date .date-month{display:block;font-size:12px;color:rgba(255,255,255,.56);letter-spacing:.15em;margin-bottom:2px}
.activity-date .date-day{display:block;font-size:28px;font-weight:800;color:#e7c476}
.activity-date .date-tag{display:inline-block;margin-top:8px;font-size:11px;padding:2px 10px;border:1px solid rgba(255,255,255,.35);border-radius:99px;color:rgba(255,255,255,.7)}
.activity-date.date-limit{background:#222;border:1px solid rgba(201,143,43,.35)}
.activity-content{min-width:0}
.activity-head{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}
.activity-title{font-size:21px;font-weight:700;color:var(--ink)}
.badge{
  display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:5px;line-height:1.2;
}
.badge-hot{color:#a73727;background:rgba(201,82,63,.14)}
.badge-gold{color:var(--brand-deep);background:rgba(201,143,43,.14)}
.badge-new{color:var(--accent);background:rgba(22,132,122,.12)}
.activity-desc{color:var(--muted);margin:10px 0 14px;font-size:15px;line-height:1.8;max-width:640px}
.ticket-row{display:flex;justify-content:space-between;gap:20px;align-items:center;padding-top:14px;border-top:1px dashed rgba(25,26,28,.12)}
.feat-grid{display:flex;gap:26px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.feat-grid span{display:inline-flex;align-items:center;gap:5px}
.feat-grid svg{color:var(--brand-deep)}
.box-btn{align-self:center;flex-shrink:0}

/* side aside */
.side-stack{display:grid;grid-template-columns:1fr;gap:24px;position:sticky;top:96px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:28px 24px}
.side-card h3{display:flex;align-items:center;gap:8px;margin-bottom:18px;font-size:18px}
.side-card h3 svg{color:var(--brand-deep)}
.side-rule{display:flex;gap:12px;margin-bottom:14px}
.side-rule:last-child{margin-bottom:0}
.side-rule .i{flex-shrink:0;width:28px;height:28px;border-radius:8px;background:rgba(25,26,28,.06);display:grid;place-items:center;font-size:13px;color:var(--brand-deep)}
.side-rule .txt{font-size:14px;line-height:1.7;color:var(--text)}
.side-rule .txt small{display:block;color:var(--muted)}
.prize-mini{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.prize-mini:last-of-type{border-bottom:none}
.prize-ico{width:45px;height:45px;border-radius:10px;background:#f3ece0;color:var(--brand-deep);flex-shrink:0;display:grid;place-items:center}
.prize-ico svg{width:22px;height:22px}
.prize-mini-name{font-size:14px;font-weight:600;color:var(--ink)}
.prize-mini-tag{font-size:12px;color:var(--muted)}
.remind-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:10px}
.input-box{
  flex:1;min-width:190px;height:48px;padding:0 16px;border:1px solid var(--line);
  background:#fff;font-size:15px;border-radius:6px;color:var(--ink);
  transition:border-color .25s,box-shadow .25s;
}
.input-box::placeholder{color:#9b968c}
.input-box:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(201,143,43,.16)}
.btn-remind{padding:13px 22px;background:var(--ink);color:#fff;cursor:pointer;font-size:15px;border-radius:6px}
.btn-remind:hover{background:var(--brand);color:#141414}
.form-tip{font-size:12px;color:var(--muted);margin-top:9px}

/* reward priority */
.prize-section{background:#ece6da;border-top:1px solid rgba(25,26,28,.05);border-bottom:1px solid rgba(25,26,28,.05)}
.prize-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}
.prize-main{
  background:var(--ink);border-radius:var(--radius-xl);overflow:hidden;color:#fff;
  display:grid;grid-template-columns:1fr .8fr;min-height:320px;
}
.prize-main-copy{padding:42px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.prize-main-copy h3{color:#fff;font-size:clamp(22px,2.4vw,30px);margin:10px 0 12px}
.prize-main-copy p{color:rgba(255,255,255,.7);font-size:15px;line-height:1.8;margin-bottom:22px}
.prize-main-copy .prize-tag{color:var(--hot)}
.prize-main-img{min-height:240px;position:relative}
.prize-main-img img{width:100%;height:100%;object-fit:cover}
.prize-main-img::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(25,26,28,.2),rgba(25,26,28,0))}
.prize-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.prize-secondary{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  display:flex;overflow:hidden;
}
.prize-secondary .ps-img{width:42%;min-height:120px}
.prize-secondary .ps-img img{width:100%;height:100%;object-fit:cover}
.prize-secondary .ps-copy{flex:1;padding:22px}
.prize-secondary h4{font-size:17px;color:var(--ink);margin-bottom:6px}
.prize-secondary p{font-size:13px;color:var(--muted);line-height:1.6}

/* tasks */
.tasks-block{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius-xl);overflow:hidden;background:var(--surface)}
.tasks-left{padding:44px}
.tasks-right{
  background:var(--ink);color:#fff;padding:40px;display:flex;flex-direction:column;justify-content:center;
}
.tasks-right h3{color:#fff;font-size:26px;margin-bottom:10px}
.tasks-right p{color:rgba(255,255,255,.68);margin-bottom:28px;font-size:15px}
.task-list .task-row{
  display:grid;grid-template-columns:auto 1fr auto auto auto auto;gap:14px;align-items:center;
  padding:15px 0;border-bottom:1px dashed var(--line);
}
.task-list .task-row:last-child{border-bottom:none}
.task-check{width:22px;height:22px;border-radius:50%;border:1px solid rgba(25,26,28,.3);display:grid;place-items:center;color:#fff}
.task-check.done{background:var(--accent);border-color:var(--accent)}
.task-row .t-name{font-weight:600;color:var(--ink);font-size:15px}
.task-row .t-reward{color:var(--brand-deep);font-size:14px;white-space:nowrap}
.task-row .t-state{font-size:13px}
.task-row .t-state.todo{color:var(--muted)}
.task-row .t-state.completed{color:var(--accent)}
.progress-small{width:84px;height:6px;background:#e7e1d5;border-radius:99px;overflow:hidden}
.progress-small i{display:block;height:100%;background:#b6b2aa;border-radius:99px}
.progress-small i::after{content:""}
.progress-done{width:100%;background:var(--accent)!important}

/* how to */
.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:12px}
.how-step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:34px 26px;position:relative;transition:all .3s var(--ease);
}
.how-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  color:var(--brand);font-size:15px;font-weight:700;letter-spacing:.1em;
  display:inline-flex;align-items:center;gap:10px;margin-bottom:22px;
}
.step-num::after{content:"";width:36px;height:1px;background:var(--brand)}
.how-step h3{font-size:19px;margin-bottom:10px}
.how-step p{font-size:14px;color:var(--muted);line-height:1.8}

/* CTA */
.cta-section{
  position:relative;background:var(--ink);color:#fff;
  border-radius:28px;overflow:hidden;
  margin:0 24px;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 85% 0%,rgba(201,143,43,.16),transparent 40%),
             linear-gradient(120deg,transparent 60%,rgba(25,26,28,.8) 100%), url(/assets/images/backpic/back-1.webp) right / contain no-repeat;
}
.cta-inner{position:relative;padding:88px 80px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.cta-copy h2{color:#fff;margin-bottom:16px;font-size:clamp(32px,4vw,48px)}
.cta-copy p{color:rgba(255,255,255,.7);font-size:16px;max-width:560px;margin-bottom:28px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-form{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:28px;border-radius:16px;backdrop-filter:blur(8px)}
.cta-form h3{color:#fff;margin-bottom:8px}
.cta-form p{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.cta-form .btn{width:100%;margin-top:10px}

/* FAQ */
.faq-wrap{max-width:1000px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);padding:8px 0}
.faq-question{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  width:100%;text-align:left;padding:20px 0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .2s;
}
.faq-question:hover{color:var(--brand-deep)}
.faq-icon{flex-shrink:0;width:26px;height:26px;line-height:24px;border:1px solid var(--line);border-radius:50%;text-align:center;font-size:18px;color:var(--brand-deep)}
.faq-item.is-open .faq-icon::after{content:"−"}
.faq-item .faq-icon::after{content:"+"}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease)}
.faq-item.is-open .faq-answer{grid-template-rows:1fr}
.faq-answer-inner{overflow:hidden}
.faq-answer p{color:var(--muted);font-size:15px;padding:0 0 26px;max-width:820px;line-height:1.95}

/* footer */
.site-footer{background:#1c1c1f;color:rgba(255,255,255,.68);padding:80px 0 40px;margin-top:clamp(48px,6vw,120px)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:60px}
.footer-name{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff;margin-bottom:18px}
.logo-dot{width:9px;height:9px;background:var(--brand);border-radius:2px}
.footer-brand p{font-size:14px;line-height:1.9;max-width:410px;color:rgba(255,255,255,.6)}
.footer-copyright{margin-top:30px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:20px;padding-top:24px;font-size:13px;color:rgba(255,255,255,.46);flex-wrap:wrap}
.footer-link-block{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.footer-link-block h4{color:#fff;font-size:15px;margin-bottom:9px;letter-spacing:.06em}
.footer-link-block a{color:rgba(255,255,255,.62);font-size:14px;transition:color .25s}
.footer-link-block a:hover{color:var(--brand)}

@media (max-width:1199px){
  .container{width:min(100% - 40px,var(--container))}
  .prize-main{grid-template-columns:1fr}
  .prize-main-img{min-height:260px}
  .prize-main-copy{padding:34px}
  .activity-layout{grid-template-columns:1fr;gap:48px}
  .side-stack{position:static}
  .cta-inner{padding:64px 48px}
}

@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-art{min-height:300px;margin-top:20px}
  .how-grid{grid-template-columns:repeat(2,1fr)}
  .prize-grid{grid-template-columns:1fr}
  .tasks-block{grid-template-columns:1fr}
  .tasks-right{padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .cta-inner{grid-template-columns:1fr;padding:56px 36px}
}

@media (max-width:767px){
  .container{width:calc(100% - 32px)}
  .site-header{height:64px}
  .header-inner{height:64px}
  .brand-name{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:.3em}
  .desktop-cta{display:none}
  .main-nav{
    position:fixed;top:64px;right:0;bottom:0;left:auto;width:min(85%,380px);
    background:var(--bg);flex-direction:column;align-items:flex-start;
    padding:52px 32px 32px;gap:4px;display:flex;transform:translateX(104%);visibility:hidden;
    transition:transform .4s var(--ease),visibility .4s;box-shadow:-12px 0 40px rgba(0,0,0,.16);
  }
  .main-nav.open{transform:translateX(0);visibility:visible}
  .main-nav .nav-link{display:block;width:100%;font-size:21px;font-weight:600;padding:14px 0}
  .main-nav .nav-link::after{display:none}
  .main-nav .nav-link.is-active::before{content:"";display:block;position:absolute;left:-10px;top:50%;width:4px;height:22px;transform:translateY(-50%);background:var(--brand)}
  .main-nav .mobile-cta{display:flex;width:100%;justify-content:center;margin-top:44px}
  .nav-toggle{display:flex}
  .page-hero{padding:56px 0 92px}
  .page-hero h1{font-size:clamp(36px,11vw,52px)}
  .hero-actions .btn{width:100%;text-align:center}
  .float-card{transform:scale(.9)}
  .float-card.fc-1{left:-18px;top:4%}
  .float-card.fc-2{right:-2%}
  .strip-inner{flex-direction:column;gap:12px}
  .section{padding-block:56px}
  .section-head{margin-bottom:30px}
  .activity-item{grid-template-columns:1fr;padding:20px;}
  .activity-date{display:flex;align-items:center;justify-content:flex-start;gap:12px;border-radius:10px;padding:10px 18px;margin-bottom:4px}
  .activity-date .date-month{display:block;font-size:13px;margin:0}
  .activity-date .date-day{display:inline;font-size:20px;margin:0}
  .activity-date .date-tag{margin:0 0 0 auto}
  .timeline-shell::before{display:none}
  .ticket-row{flex-direction:column;align-items:flex-start}
  .feat-grid{gap:12px;margin-bottom:12px}
  .box-btn{width:100%}
  .prize-main-copy{padding:28px 22px}
  .prize-secondary{flex-direction:column}
  .prize-secondary .ps-img{width:100%;min-height:150px}
  .prize-secondary .ps-copy{padding:24px}
  .tasks-left{padding:24px}
  .task-row{grid-template-columns:auto 1fr auto;row-gap:10px}
  .task-row .t-reward,.task-row .t-state{font-size:13px}
  .progress-small{grid-column:3;width:100%}
  .task-row .t-state{padding-right:6px}
  .how-grid{grid-template-columns:1fr;gap:12px}
  .cta-section{margin-inline:0;border-radius:18px}
  .cta-inner{padding:46px 24px}
  .cta-copy h2{font-size:30px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:40px}
  .footer-copyright{flex-direction:column;gap:8px}
  .container{width:calc(100% - 28px)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root {
    --bg: #F5F2EB;
    --surface: #FFFFFF;
    --ink: #191A1C;
    --text: #2A2A2A;
    --muted: #76736B;
    --line: rgba(25, 26, 28, 0.12);
    --brand: #C98F2B;
    --brand-deep: #9A6B1C;
    --accent: #16847A;
    --hot: #C9523F;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 6px;
    --shadow-hover: 0 16px 40px rgba(30, 24, 10, 0.08);
    --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    font-family: var(--font-main);
    font-size: 16px;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  img {
    display: block;
    max-width: 100%;
    height: auto;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
  }

  input {
    font-family: inherit;
  }

  .container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 72px;
    background: rgba(245, 242, 235, 0.9);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .header-inner {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .brand-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--ink);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    border-radius: 6px;
    flex-shrink: 0;
  }

  .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
  }

  .brand-name {
    font-size: 18px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: 0.02em;
  }

  .brand-sub {
    font-size: 10px;
    color: var(--brand-deep);
    letter-spacing: 0.45em;
    margin-top: 3px;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
  }

  .nav-link {
    position: relative;
    padding: 8px 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    display: inline-block;
    transition: color .3s cubic-bezier(.2, 0, 0, 1);
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 2px;
    height: 2px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .4s cubic-bezier(.2, 0, 0, 1);
  }

  .nav-link:hover {
    color: var(--brand-deep);
  }

  .nav-link.is-active {
    color: var(--brand-deep);
    font-weight: 700;
  }

  .nav-link.is-active::after {
    transform: scaleX(1);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 22px;
    height: 42px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    transition: background-color .3s ease, color .3s ease, border-color .3s ease, transform .3s ease;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--ink);
    color: #fff;
  }

  .btn-primary:hover {
    background: var(--brand);
    color: var(--ink);
    transform: translateY(-2px);
  }

  .btn-secondary {
    background: transparent;
    border: 1px solid rgba(25, 26, 28, 0.35);
    color: var(--ink);
  }

  .btn-secondary:hover {
    border-color: var(--brand-deep);
    color: var(--brand-deep);
    transform: translateY(-2px);
  }

  .desktop-cta {
    margin-left: 20px;
    height: 38px;
    padding: 0 18px;
    font-size: 14px;
  }

  .mobile-cta {
    display: none;
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.6);
    transition: border-color .3s;
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    margin: 0 auto;
    border-radius: 2px;
    transition: transform .3s;
  }

  .nav-toggle:hover {
    border-color: var(--brand);
  }

  /* category intro band */
  .category-mast {
    padding: 64px 0 56px;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(110deg, rgba(255, 255, 255, 0.6), rgba(245, 242, 235, 0.2));
    margin-bottom: 24px;
  }

  .category-mast-inner {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
  }

  .category-mast h1 {
    font-size: clamp(34px, 4.5vw, 58px);
    font-weight: 800;
    color: var(--ink);
    margin: 8px 0 12px;
    line-height: 1.15;
    letter-spacing: -0.02em;
  }

  .category-mast p {
    max-width: 700px;
    color: var(--muted);
    font-size: 16px;
    margin: 0;
  }

  .cat-crumb {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
  }

  .cat-crumb a {
    color: var(--muted);
    transition: color .3s;
  }

  .cat-crumb a:hover {
    color: var(--brand-deep);
  }

  .cat-meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
  }

  .cat-meta-tags span {
    display: inline-block;
    padding: 2px 12px;
    font-size: 12px;
    color: var(--brand-deep);
    background: rgba(201, 143, 43, 0.08);
    border-radius: 999px;
    border: 1px solid rgba(201, 143, 43, 0.25);
  }

  .mast-note {
    flex-shrink: 0;
    max-width: 300px;
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-left: 3px solid var(--brand);
    border-radius: 12px;
  }

  .mast-note h3 {
    margin: 0 0 8px;
    font-size: 16px;
    color: var(--ink);
  }

  .mast-note p {
    font-size: 13px;
    color: var(--muted);
  }

  .mast-note .note-link {
    color: var(--brand-deep);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 10px;
  }

  .note-link:hover span {
    transform: translateX(4px);
  }

  .note-link span {
    display: inline-block;
    transition: transform .3s;
  }

  /* shared section styles */
  .section {
    padding: 72px 0 40px;
  }

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 32px;
  }

  .section-head h2 {
    font-size: clamp(26px, 3vw, 38px);
    font-weight: 800;
    line-height: 1.2;
    color: var(--ink);
    margin: 0;
  }

  .section-head .head-desc {
    color: var(--muted);
    font-size: 14px;
    max-width: 460px;
  }

  /* featured block */
  .feature-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 24px;
    align-items: stretch;
  }

  .feature-main {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color .4s;
  }

  .feature-main:hover {
    border-color: rgba(201, 143, 43, 0.5);
  }

  .feature-media {
    overflow: hidden;
    min-height: 300px;
  }

  .feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s cubic-bezier(.2, 0, 0, 1);
  }

  .feature-main:hover .feature-media img {
    transform: scale(1.04);
  }

  .feature-content {
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .feature-tag {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: var(--hot);
    text-transform: uppercase;
    padding: 2px 8px;
    background: rgba(201, 82, 63, 0.08);
    border-radius: 4px;
    margin-bottom: 12px;
  }

  .enter-tag {
    color: var(--brand-deep);
    background: rgba(201, 143, 43, 0.1);
  }

  .feature-content h3 {
    font-size: clamp(19px, 2.2vw, 28px);
    font-weight: 800;
    line-height: 1.4;
    color: var(--ink);
    margin: 0 0 12px;
  }

  .feature-content p {
    font-size: 15px;
    color: var(--muted);
    margin: 0 0 20px;
    line-height: 1.8;
  }

  .feature-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 13px;
    color: var(--muted);
    margin-top: auto;
  }

  .read-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--brand-deep);
    margin-top: 16px;
    font-size: 14px;
  }

  .read-link:hover span {
    transform: translateX(4px);
  }

  .read-link span {
    transition: transform .3s;
  }

  .feature-side {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .side-note {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    flex: 1;
  }

  .side-note h4,
  .side-note h3 {
    font-size: 16px;
    margin: 0 0 10px;
    color: var(--ink);
  }

  .side-note p {
    font-size: 13px;
    line-height: 1.8;
    color: var(--muted);
    margin: 0 0 10px;
  }

  .side-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .side-list li {
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 0;
    font-size: 14px;
    color: var(--text);
    transition: color .2s;
    cursor: default;
  }

  .side-list li:hover {
    color: var(--brand-deep);
  }

  .side-list li:first-child {
    border-top: none;
  }

  .side-list li small {
    color: var(--muted);
    font-size: 12px;
    flex-shrink: 0;
  }

  .light-bg {
    background: rgba(201, 143, 43, 0.05);
  }

  /* waterfall guide area */
  .guide-section {
    padding: 70px 0 20px;
  }

  .waterfall-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .waterfall-col {
    display: flex;
    flex-direction: column;
    gap: 30px;
  }

  .waterfall-col.bookend {
    padding-top: 56px;
  }

  .w-article {
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow .35s ease, border-color .35s ease;
  }

  .w-article:hover {
    border-color: rgba(201, 143, 43, 0.45);
    box-shadow: var(--shadow-hover);
  }

  .w-cover {
    overflow: hidden;
    background: rgba(201, 143, 43, 0.05);
    min-height: 180px;
  }

  .w-cover img {
    width: 100%;
    height: 100%;
    min-height: 180px;
    object-fit: cover;
    transition: transform .55s cubic-bezier(.2, 0, 0, 1);
  }

  .w-article:hover .w-cover img {
    transform: scale(1.05);
  }

  .w-body {
    padding: 22px 20px 18px;
    display: flex;
    flex-direction: column;
  }

  .w-body .w-tag {
    font-size: 12px;
    font-weight: 600;
    color: var(--brand-deep);
    margin-bottom: 8px;
  }

  .w-body h3 {
    font-size: 18px;
    line-height: 1.5;
    color: var(--ink);
    font-weight: 700;
    margin: 0 0 8px;
  }

  .w-body h3 a:hover {
    color: var(--brand-deep);
  }

  .w-body p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.75;
    margin: 0 0 16px;
  }

  .w-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--muted);
  }

  .w-meta a {
    color: var(--brand-deep);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap .3s;
  }

  .w-meta a:hover {
    gap: 8px;
  }

  /* guide topics */
  .topics-section {
    padding: 60px 0 0;
  }

  .topic-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 7px;
  }

  .topic-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 999px;
    transition: all .3s ease;
  }

  .topic-pill:hover {
    color: var(--brand-deep);
    border-color: rgba(201, 143, 43, 0.6);
    background: rgba(201, 143, 43, 0.04);
    transform: translateY(-2px);
  }

  .topic-pill b {
    color: var(--hot);
    font-weight: 700;
    font-size: 12px;
  }

  /* CTA banner */
  .cta-banner {
    padding: 32px 0 70px;
  }

  .cta-banner-inner {
    background:
      linear-gradient(100deg, rgba(25, 26, 28, 0.92) 0%, rgba(25, 26, 28, 0.72) 70%, rgba(25, 26, 28, 0.55) 100%),
      url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    border-radius: var(--radius-lg);
    padding: 54px 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
  }

  .cta-banner h2 {
    margin: 0 0 10px;
    color: #fff;
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.3;
  }

  .cta-banner p {
    color: rgba(255, 255, 255, 0.78);
    font-size: 16px;
    max-width: 650px;
    margin: 0;
  }

  .cta-banner .btn-main-grouped {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex-shrink: 0;
  }

  .cta-banner .btn-primary {
    background: #FFFFFF;
    color: var(--ink);
    height: 48px;
    padding: 0 30px;
    font-size: 16px;
  }

  .cta-banner .btn-primary:hover {
    background: var(--brand);
    color: var(--ink);
    transform: translateY(-2px);
  }

  .cta-banner .btn-outline-light {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #fff;
    height: 44px;
    padding: 0 24px;
    font-size: 14px;
  }

  .cta-banner .btn-outline-light:hover {
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
  }

  /* faq */
  .faq-section {
    padding: 10px 0 70px;
    max-width: 1100px;
    margin: 0 auto;
  }

  .faq-section h2 {
    font-size: clamp(27px, 3vw, 38px);
    color: var(--ink);
    text-align: center;
    font-weight: 800;
    margin-top: 0;
  }

  .faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 50px;
    margin-top: 26px;
  }

  .faq-item {
    border-bottom: 1px solid var(--line);
    padding: 10px 0 2px;
  }

  details summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    list-style: none;
    color: var(--ink);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    padding: 6px 0;
    transition: color .3s;
  }

  details summary:hover {
    color: var(--brand-deep);
  }

  details summary::-webkit-details-marker {
    display: none;
  }

  details .icon {
    font-size: 22px;
    color: var(--muted);
    transition: transform .35s ease, color .3s;
    flex-shrink: 0;
    line-height: 1;
  }

  details[open] .icon {
    color: var(--brand);
    transform: rotate(45deg);
  }

  details p {
    color: var(--muted);
    font-size: 14px;
    margin: 0 0 14px;
    max-width: 560px;
  }

  /* footer */
  .site-footer {
    background: var(--ink);
    color: #c8c4ba;
    margin-top: 40px;
  }

  .site-footer .container {
    padding-top: 50px;
    padding-bottom: 30px;
  }

  .site-footer a {
    color: #c8c4ba;
    transition: color .3s;
  }

  .site-footer a:hover {
    color: var(--brand);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
  }

  .footer-brand p {
    color: rgba(255, 255, 255, 0.66);
    font-size: 14px;
  }

  .footer-name {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo-dot {
    width: 9px;
    height: 9px;
    background: var(--brand);
    display: inline-block;
    border-radius: 50%;
  }

  .footer-copyright {
    margin-top: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
  }

  .footer-link-block {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-link-block h4 {
    margin: 0 0 4px;
    font-size: 14px;
    color: #fff;
    opacity: 0.8;
  }

  .footer-link-block a {
    font-size: 14px;
    width: fit-content;
  }

  @media (max-width: 1100px) {
    .feature-main {
      grid-template-columns: 1fr 1fr;
    }
    .w-article {
      grid-template-columns: 1fr;
    }
    .w-cover {
      min-height: 150px;
    }
    .cta-banner-inner {
      padding: 40px 32px;
      flex-direction: column;
    }
    .main-nav {
      display: none;
    }
    .desktop-cta {
      display: none;
    }
    .nav-toggle {
      display: flex;
      margin-left: 20px;
    }
    body.nav-open .main-nav {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      position: fixed;
      z-index: 110;
      top: 72px;
      right: 16px;
      width: min(360px, calc(100% - 32px));
      background: rgba(245, 242, 235, 0.98);
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 24px 20px 18px;
      box-shadow: 0 24px 70px rgba(0, 0, 0, 0.2);
    }
    body.nav-open .main-nav .nav-link {
      width: 100%;
      font-size: 16px;
      padding: 8px 4px;
      border-bottom: 1px solid var(--line);
    }
    body.nav-open .nav-link.is-active {
      border-left: 4px solid var(--brand);
      padding-left: 12px;
      border-bottom-style: none;
    }
    body.nav-open .main-nav .mobile-cta {
      display: inline-flex;
      width: 100%;
      margin-top: 16px;
    }
    body.nav-open .nav-link::after {
      display: none;
    }
  }

  @media (max-width: 992px) {
    .feature-grid {
      grid-template-columns: 1.4fr 1fr;
    }
    .waterfall-wrap {
      grid-template-columns: 1fr;
    }
    .waterfall-col.bookend {
      padding-top: 0;
    }
    .cta-banner-inner {
      padding-left: 40px;
      padding-right: 40px;
    }
  }

  @media (max-width: 768px) {
    .container {
      padding-left: 20px;
      padding-right: 20px;
    }

    .category-mast {
      padding: 40px 0 34px;
    }

    .category-mast-inner {
      flex-direction: column;
      align-items: flex-start;
      gap: 32px;
    }

    .feature-grid,
    .cta-banner-inner,
    .faq-grid {
      grid-template-columns: 1fr;
    }

    .feature-main {
      grid-template-columns: 1fr;
    }

    .feature-media {
      min-height: 220px;
    }

    .feature-content {
      padding: 22px 20px 28px;
    }

    .feature-side {
      flex-direction: row;
      flex-wrap: wrap;
    }

    .side-note {
      min-width: calc(50% - 10px);
      flex: 1;
    }

    .w-cover img {
      min-height: 190px;
    }

    .section {
      padding-top: 60px;
    }

    .guide-section {
      padding-top: 60px;
    }

    .section-head {
      align-items: flex-start;
      flex-direction: column;
      gap: 14px;
    }

    .mast-note {
      max-width: none;
    }

    .cta-banner {
      padding: 40px 0 50px;
    }

    .faq-section {
      padding-bottom: 40px;
    }

    .faq-section h2 {
      text-align: left;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .brand-sub {
      letter-spacing: 0.35em;
    }
  }

  @media (max-width: 520px) {
    .brand {
      gap: 8px;
    }
    .brand-mark {
      font-size: 17px;
    }
    .brand-name {
      font-size: 16px;
    }
    .brand-sub {
      letter-spacing: 0.2em;
    }
    .container {
      padding-left: 18px;
      padding-right: 18px;
    }
    .feature-side {
      flex-direction: column;
    }
    .side-note {
      min-width: 0;
    }
    .waterfall-wrap {
      gap: 22px;
    }
    .waterfall-col.bookend {
      padding-top: 0;
      margin-top: -8px;
    }
    .cta-banner .btn-primary,
    .cta-banner .btn-outline-light {
      width: 100%;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
  }

/* roulang page: category4 */
:root {
    --bg: #F5F2EB;
    --surface: #FFFFFF;
    --ink: #191A1C;
    --text: #2A2A2A;
    --muted: #76736B;
    --line: rgba(25, 26, 28, 0.12);
    --brand: #C98F2B;
    --brand-deep: #9A6B1C;
    --accent: #16847A;
    --hot: #C9523F;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --shadow-hover: 0 16px 40px rgba(30, 24, 10, 0.08);
    --ease: cubic-bezier(0.2, 0, 0, 1);
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

  h1,
  h2,
  h3,
  h4,
  p,
  ol,
  ul,
  figure {
    margin: 0;
  }

  ol,
  ul {
    list-style: none;
    padding: 0;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  img {
    max-width: 100%;
    display: block;
  }

  button,
  input {
    font: inherit;
    border: 0;
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  summary:focus-visible {
    outline: 2px solid var(--brand-deep);
    outline-offset: 3px;
  }

  .container {
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: 24px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 72px;
    background: rgba(245, 242, 235, 0.92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .header-inner {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: none;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--ink);
    color: #F5F2EB;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
    flex: none;
  }

  .brand-text {
    display: flex;
    align-items: baseline;
    gap: 6px;
    white-space: nowrap;
  }

  .brand-name {
    font-size: 20px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: 0.5px;
  }

  .brand-sub {
    font-size: 12px;
    color: var(--muted);
    border-left: 1px solid var(--line);
    padding-left: 8px;
    letter-spacing: 0.2em;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 72px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: color 0.25s var(--ease);
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 16px;
    height: 2px;
    width: 0;
    background: var(--brand);
    transition: width 0.3s var(--ease);
  }

  .nav-link:hover,
  .nav-link.is-active {
    color: var(--brand-deep);
    font-weight: 600;
  }

  .nav-link:hover::after,
  .nav-link.is-active::after {
    width: 100%;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.25s var(--ease);
  }

  .btn .arr {
    display: inline-block;
    font-size: 18px;
    font-weight: 400;
    transition: transform 0.25s var(--ease);
  }

  .btn-primary {
    background: var(--ink);
    color: #ffffff;
  }

  .btn-primary:hover {
    background: var(--brand);
    color: var(--ink);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }

  .btn-primary:hover .arr {
    transform: translateX(4px);
  }

  .btn-ghost {
    background: transparent;
    border-color: var(--line);
    color: var(--text);
  }

  .btn-ghost:hover {
    border-color: var(--brand-deep);
    color: var(--brand-deep);
  }

  .btn-sm {
    min-height: 36px;
    padding: 0 14px;
    font-size: 14px;
    border-radius: 6px;
  }

  .btn-lg {
    min-height: 54px;
    padding: 0 30px;
    font-size: 16px;
  }

  .desktop-cta {
    min-height: 40px;
    padding: 0 18px;
    border-radius: 6px;
    background: var(--ink);
    color: #F5F2EB;
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.25s var(--ease);
  }

  .desktop-cta:hover {
    background: var(--brand);
    color: var(--ink);
  }

  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    border-radius: 8px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
  }

  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.25s var(--ease);
  }

  .page-banner {
    position: relative;
    overflow: hidden;
    color: #ffffff;
    background:
      linear-gradient(105deg, rgba(25, 26, 28, 0.96) 0%, rgba(25, 26, 28, 0.78) 45%, rgba(25, 26, 28, 0.42) 100%),
      url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
  }

  .page-banner .container {
    padding-top: 86px;
    padding-bottom: 128px;
  }

  .crumb {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
  }

  .crumb a {
    color: rgba(255, 255, 255, 0.72);
    transition: color 0.2s var(--ease);
  }

  .crumb a:hover {
    color: #ffffff;
  }

  .crumb-sep {
    color: rgba(255, 255, 255, 0.4);
  }

  .banner-title {
    margin-top: 24px;
    font-size: clamp(48px, 7vw, 78px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: #ffffff;
  }

  .banner-desc {
    max-width: 760px;
    margin-top: 20px;
    font-size: 18px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.88);
  }

  .banner-btns {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }

  .banner-btns .btn-primary {
    background: var(--brand);
    color: var(--ink);
  }

  .banner-btns .btn-primary:hover {
    background: #ffffff;
    color: var(--ink);
  }

  .banner-btns .btn-ghost {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.55);
  }

  .banner-btns .btn-ghost:hover {
    color: #ffffff;
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
  }

  .banner-metrics {
    margin-top: 58px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    display: flex;
    flex-wrap: wrap;
    gap: 56px;
  }

  .metric-item strong {
    display: block;
    font-size: 32px;
    font-weight: 800;
    line-height: 1.25;
    color: #ffffff;
    font-variant-numeric: tabular-nums;
  }

  .metric-item span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.68);
  }

  .notice-strip {
    position: relative;
    z-index: 4;
    margin-top: -64px;
  }

  .notice-inner {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: 0 10px 32px rgba(25, 26, 28, 0.06);
    padding: 18px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .notice-mark {
    width: 28px;
    height: 28px;
    flex: none;
    border-radius: 50%;
    background: var(--bg);
    color: var(--brand-deep);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 15px;
  }

  .notice-inner p {
    color: var(--text);
    font-size: 15px;
  }

  .timeline-section {
    padding: 120px 0 110px;
  }

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 48px;
  }

  .section-head-title .eyebrow {
    display: block;
    color: var(--brand-deep);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: 10px;
  }

  .section-head-title h2 {
    font-size: clamp(30px, 4vw, 42px);
    color: var(--ink);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.25;
  }

  .section-side-text {
    max-width: 440px;
    color: var(--muted);
    font-size: 15px;
  }

  .period-caption {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 28px 0 20px;
    font-size: 18px;
    font-weight: 800;
    color: var(--ink);
  }

  .period-caption::after {
    content: "";
    height: 1px;
    flex: 1;
    background: var(--line);
  }

  .period-caption .period-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand);
    flex: none;
  }

  .timeline-list {
    display: grid;
    gap: 0;
  }

  .timeline-item {
    display: grid;
    grid-template-columns: 168px 34px minmax(0, 1fr);
  }

  .tl-date {
    padding-top: 14px;
    text-align: right;
    padding-right: 0;
  }

  .tl-day {
    display: block;
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--ink);
    font-variant-numeric: tabular-nums;
  }

  .tl-month {
    display: block;
    color: var(--muted);
    font-size: 14px;
    margin-top: 4px;
  }

  .tl-phase {
    display: inline-block;
    margin-top: 16px;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.6;
  }

  .phase-open {
    background: rgba(22, 132, 122, 0.13);
    color: #0d6d63;
  }

  .phase-test {
    background: rgba(201, 143, 43, 0.16);
    color: var(--brand-deep);
  }

  .phase-soon {
    background: rgba(25, 26, 28, 0.07);
    color: var(--muted);
  }

  .tl-spine {
    position: relative;
    display: flex;
    justify-content: center;
  }

  .tl-spine::before {
    content: "";
    width: 1px;
    background: var(--line);
  }

  .tl-spine::after {
    content: "";
    position: absolute;
    top: 28px;
    width: 11px;
    height: 11px;
    border: 3px solid var(--brand);
    background: var(--bg);
    border-radius: 50%;
    z-index: 2;
  }

  .tl-card {
    display: grid;
    grid-template-columns: 270px minmax(0, 1fr);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  }

  .tl-card:hover {
    border-color: rgba(25, 26, 28, 0.24);
    box-shadow: var(--shadow-hover);
  }

  .tl-media {
    overflow: hidden;
    position: relative;
    background: #EDEAE2;
  }

  .tl-media img {
    width: 100%;
    height: 100%;
    min-height: 216px;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
  }

  .tl-card:hover .tl-media img {
    transform: scale(1.05);
  }

  .tl-content {
    padding: 24px 26px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .tl-title-line {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
  }

  .tl-title-line h3 {
    font-size: 22px;
    color: var(--ink);
    font-weight: 800;
    line-height: 1.4;
  }

  .badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    background: var(--bg);
    color: var(--brand-deep);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.3;
  }

  .badge-hot {
    background: rgba(201, 82, 63, 0.12);
    color: var(--hot);
  }

  .tl-tags {
    margin-top: 8px;
    font-size: 13px;
    color: var(--muted);
  }

  .tl-desc {
    margin-top: 12px;
    max-width: 58ch;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text);
  }

  .tl-footer {
    margin-top: 18px;
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .top-section {
    padding: 110px 0;
    background: var(--surface);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .top-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.35fr;
    gap: 72px;
    align-items: start;
  }

  .top-intro .eyebrow {
    display: block;
    color: var(--brand-deep);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: 12px;
  }

  .top-intro h2 {
    font-size: clamp(30px, 4vw, 42px);
    color: var(--ink);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
  }

  .top-intro p {
    margin-top: 18px;
    max-width: 420px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.9;
  }

  .rank-list {
    display: flex;
    flex-direction: column;
  }

  .rank-item {
    display: grid;
    grid-template-columns: 82px minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 24px;
    padding: 22px 4px;
    border-top: 1px solid var(--line);
    transition: padding-left 0.3s var(--ease);
  }

  .rank-item:last-child {
    border-bottom: 1px solid var(--line);
  }

  .rank-item:hover {
    padding-left: 12px;
  }

  .rank-no {
    font-size: 34px;
    font-weight: 800;
    line-height: 1;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
  }

  .rank-item:nth-child(1) .rank-no {
    color: var(--brand);
  }

  .rank-item:nth-child(2) .rank-no {
    color: #B9B1A3;
  }

  .rank-item:nth-child(3) .rank-no {
    color: #C89A6A;
  }

  .rank-info h3 {
    font-size: 18px;
    color: var(--ink);
    font-weight: 800;
  }

  .rank-info p {
    font-size: 14px;
    color: var(--muted);
    margin-top: 2px;
  }

  .rank-state {
    font-size: 14px;
    color: var(--text);
    font-weight: 600;
  }

  .remind-section {
    padding: 118px 0 76px;
  }

  .remind-box {
    background:
      linear-gradient(110deg, rgba(25, 26, 28, 0.97) 0%, rgba(25, 26, 28, 0.86) 60%, rgba(25, 26, 28, 0.76) 100%),
      url("/assets/images/backpic/back-3.png") center center / cover no-repeat;
    color: #ffffff;
    border-radius: 18px;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    overflow: hidden;
  }

  .remind-copy {
    padding: 60px;
  }

  .remind-copy .eyebrow {
    display: block;
    color: var(--brand);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: 12px;
  }

  .remind-copy h2 {
    font-size: clamp(28px, 3.6vw, 40px);
    color: #ffffff;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
  }

  .remind-copy > p {
    margin-top: 16px;
    max-width: 52ch;
    color: rgba(255, 255, 255, 0.78);
    font-size: 15px;
    line-height: 1.85;
  }

  .done-list {
    margin-top: 28px;
    display: grid;
    gap: 10px;
  }

  .done-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.88);
  }

  .done-list svg {
    width: 16px;
    height: 16px;
    flex: none;
  }

  .remind-form {
    padding: 60px;
    border-left: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.04);
  }

  .remind-form label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.74);
    margin-bottom: 8px;
  }

  .form-control {
    width: 100%;
    height: 50px;
    padding: 0 16px;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 6px;
    font-size: 15px;
    transition: border-color 0.25s var(--ease);
  }

  .form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
  }

  .form-control:focus {
    outline: none;
    border-color: var(--brand);
  }

  .remind-form .btn {
    width: 100%;
    margin-top: 16px;
    background: var(--brand);
    color: var(--ink);
  }

  .remind-form .btn:hover {
    background: #ffffff;
    color: var(--ink);
    transform: translateY(-2px);
  }

  .form-tip {
    display: none;
    margin-top: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
  }

  .form-tip.is-show {
    display: block;
  }

  .faq-section {
    padding: 100px 0 120px;
    background: var(--bg);
  }

  .faq-head {
    margin-bottom: 42px;
  }

  .faq-head .eyebrow {
    display: block;
    color: var(--brand-deep);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: 12px;
  }

  .faq-head h2 {
    font-size: clamp(30px, 4vw, 42px);
    color: var(--ink);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.25;
  }

  .faq-head p {
    margin-top: 14px;
    color: var(--muted);
    max-width: 640px;
    font-size: 15px;
  }

  .faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 68px;
    align-items: start;
  }

  .faq-item {
    border-top: 1px solid var(--line);
  }

  .faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    padding: 19px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    transition: color 0.2s var(--ease);
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary:hover {
    color: var(--brand-deep);
  }

  .faq-item summary::after {
    content: "+";
    flex: none;
    font-size: 26px;
    font-weight: 400;
    line-height: 1;
    color: var(--brand-deep);
    transition: transform 0.25s var(--ease);
  }

  .faq-item[open] summary::after {
    content: "×";
    color: var(--ink);
  }

  .faq-answer {
    padding: 0 0 20px;
  }

  .faq-answer p {
    max-width: 60ch;
    font-size: 15px;
    line-height: 1.85;
    color: var(--muted);
  }

  .site-footer {
    background: var(--ink);
    color: rgba(255, 255, 255, 0.82);
    padding: 78px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.7fr 0.8fr 0.9fr;
    gap: 64px;
  }

  .footer-name {
    color: #ffffff;
    font-size: 22px;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo-dot {
    width: 10px;
    height: 10px;
    background: var(--brand);
    border-radius: 2px;
    display: inline-block;
  }

  .footer-brand p {
    margin-top: 18px;
    max-width: 52ch;
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.62);
  }

  .footer-copyright {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 26px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
  }

  .footer-link-block {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .footer-link-block h4 {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
  }

  .footer-link-block a {
    color: rgba(255, 255, 255, 0.68);
    font-size: 14px;
    transition: color 0.2s var(--ease), transform 0.2s var(--ease);
  }

  .footer-link-block a:hover {
    color: var(--brand);
    transform: translateX(4px);
  }

  @media (max-width: 1024px) {
    .main-nav {
      gap: 20px;
    }

    .section-head {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
    }

    .tl-card {
      grid-template-columns: 220px minmax(0, 1fr);
    }

    .top-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .remind-box {
      grid-template-columns: 1fr;
    }

    .remind-form {
      border-left: 0;
      border-top: 1px solid rgba(255, 255, 255, 0.16);
    }
  }

  @media (max-width: 900px) {
    .mobile-cta {
      display: inline-flex !important;
      width: 100%;
      margin-top: 10px;
      justify-content: center;
    }

    .desktop-cta {
      display: none;
    }

    .nav-toggle {
      display: inline-flex;
    }

    .main-nav {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 120;
      height: 100vh;
      width: min(82vw, 360px);
      flex-direction: column;
      align-items: flex-start;
      justify-content: flex-start;
      gap: 4px;
      padding: 92px 30px 32px;
      background: var(--surface);
      box-shadow: -24px 0 64px rgba(0, 0, 0, 0.16);
      transform: translateX(110%);
      transition: transform 0.4s var(--ease);
    }

    .main-nav .nav-link {
      height: auto;
      width: 100%;
      font-size: 18px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(25, 26, 28, 0.06);
    }

    .main-nav .nav-link::after {
      display: none;
    }

    .main-nav .nav-link.is-active {
      color: var(--brand-deep);
      font-weight: 700;
      padding-left: 12px;
      border-left: 4px solid var(--brand);
    }

    body.nav-open {
      overflow: hidden;
    }

    body.nav-open .main-nav {
      transform: translateX(0);
    }

    body.nav-open .nav-toggle {
      position: fixed;
      top: 14px;
      right: 14px;
      z-index: 130;
      background: var(--surface);
      border: 1px solid var(--line);
    }

    body.nav-open .nav-toggle span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    body.nav-open .nav-toggle span:nth-child(2) {
      opacity: 0;
    }

    body.nav-open .nav-toggle span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
  }

  @media (max-width: 768px) {
    .container {
      padding-inline: 20px;
    }

    .page-banner .container {
      padding-top: 58px;
      padding-bottom: 100px;
    }

    .banner-title {
      font-size: clamp(38px, 11vw, 54px);
    }

    .banner-desc {
      font-size: 16px;
    }

    .banner-metrics {
      gap: 24px;
      margin-top: 36px;
      padding-top: 20px;
    }

    .metric-item strong {
      font-size: 26px;
    }

    .notice-inner {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
      padding: 18px 18px;
    }

    .timeline-section {
      padding: 76px 0 70px;
    }

    .period-caption {
      font-size: 16px;
    }

    .timeline-item {
      grid-template-columns: 1fr;
      row-gap: 12px;
    }

    .tl-date {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0;
      text-align: left;
    }

    .tl-day {
      font-size: 30px;
    }

    .tl-month {
      margin: 0 0 0 8px;
      font-size: 13px;
    }

    .tl-phase {
      margin-top: 0;
      margin-left: auto;
    }

    .tl-spine {
      display: none;
    }

    .tl-card {
      grid-template-columns: 1fr;
    }

    .tl-media img {
      width: 100%;
      height: 200px;
      min-height: 0;
    }

    .tl-content {
      padding: 20px;
    }

    .tl-title-line h3 {
      font-size: 19px;
    }

    .top-section {
      padding: 70px 0;
    }

    .rank-item {
      grid-template-columns: 60px minmax(0, 1fr);
      gap: 14px;
      padding: 18px 0;
    }

    .rank-no {
      font-size: 27px;
    }

    .rank-state,
    .rank-item .btn {
      grid-column: 2;
      justify-self: start;
    }

    .remind-section {
      padding: 76px 0 54px;
    }

    .remind-copy,
    .remind-form {
      padding: 34px 22px;
    }

    .remind-form .btn {
      font-size: 16px;
    }

    .faq-section {
      padding: 70px 0 76px;
    }

    .faq-grid {
      grid-template-columns: 1fr;
      column-gap: 0;
    }

    .faq-item summary {
      font-size: 15px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 42px;
    }
  }

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

    html {
      scroll-behavior: auto;
    }
  }